Дай бог здоровья Андрею, помог отчистить кеш для отчета

# Conflicts:
#	app/src/main/java/com/example/myapplication/api/MyServerService.kt
#	app/src/main/java/com/example/myapplication/database/AppViewModelProvider.kt
#	app/src/main/java/com/example/myapplication/database/entities/composeui/edit/BikeEdit.kt
#	app/src/main/java/com/example/myapplication/database/entities/composeui/edit/BikeEditViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/bike/BikeListViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/bike/BikeViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/cart/CartViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/item/ItemEditViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/item/ItemListViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/rent/RentListViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/rent/RentViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/rent/ReportViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/user/CurrentUserViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/user/EntryUserViewModel.kt
#	app/src/main/java/com/example/myapplication/database/room/viewmodel/user/RegisterUserViewModel.kt
#	app/src/main/java/com/example/myapplication/ui/edit/ItemEdit.kt
#	app/src/main/java/com/example/myapplication/ui/list/BikeList.kt
#	app/src/main/java/com/example/myapplication/ui/list/ItemList.kt
#	app/src/main/java/com/example/myapplication/ui/navigation/MainNavbar.kt
#	app/src/main/java/com/example/myapplication/ui/view/BikeView.kt
#	app/src/main/res/xml/network_security_config.xml
#	server/data.json

.gitignore

@@ -1,26 +1,15 @@
-# ---> Kotlin
+*.iml
-# Compiled class file
+.gradle
-*.class
+/local.properties
-
+/.idea/caches
-# Log file
+/.idea/libraries
-*.log
+/.idea/modules.xml
-
+/.idea/workspace.xml
-# BlueJ files
+/.idea/navEditor.xml
-*.ctxt
+/.idea/assetWizardSettings.xml
-
+.DS_Store
-# Mobile Tools for Java (J2ME)
+/build
-.mtj.tmp/
+/captures
-
+.externalNativeBuild
-# Package Files #
+.cxx
-*.jar
+local.properties
-*.war
-*.nar
-*.ear
-*.zip
-*.tar.gz
-*.rar
-
-# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
-hs_err_pid*
-replay_pid*
-

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/.name

@@ -0,0 +1 @@
+My Application

.idea/codeStyles/Project.xml

@@ -0,0 +1,123 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <JetCodeStyleSettings>
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+    </JetCodeStyleSettings>
+    <codeStyleSettings language="XML">
+      <option name="FORCE_REARRANGE_MODE" value="1" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+      <arrangement>
+        <rules>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
+    <codeStyleSettings language="kotlin">
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+    </codeStyleSettings>
+  </code_scheme>
+</component>

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="17" />
+  </component>
+</project>

.idea/gradle.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="jbr-17" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,41 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+  </profile>
+</component>

.idea/kotlinc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.8.20" />
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,9 @@
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

app/.idea/gradle.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="jbr-17" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

app/.idea/misc.xml

@@ -0,0 +1,9 @@
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

app/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

app/build.gradle.kts

@@ -1,15 +1,17 @@
 plugins {
     id("com.android.application")
     id("org.jetbrains.kotlin.android")
+    id("com.google.devtools.ksp")
+    id("org.jetbrains.kotlin.plugin.serialization")
 }
 
 android {
-    namespace = "com.example.labwork"
+    namespace = "com.example.myapplication"
-    compileSdk = 34
+    compileSdk = 33
 
     defaultConfig {
-        applicationId = "com.example.labwork"
+        applicationId = "com.example.myapplication"
-        minSdk = 24
+        minSdk = 26
         targetSdk = 33
         versionCode = 1
         versionName = "1.0"
@@ -30,17 +32,18 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
+        isCoreLibraryDesugaringEnabled = true
-        targetCompatibility = JavaVersion.VERSION_1_8
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
     }
     kotlinOptions {
-        jvmTarget = "1.8"
+        jvmTarget = "17"
     }
     buildFeatures {
         compose = true
     }
     composeOptions {
-        kotlinCompilerExtensionVersion = "1.4.3"
+        kotlinCompilerExtensionVersion = "1.4.5"
     }
     packaging {
         resources {
@@ -50,18 +53,42 @@ android {
 }
 
 dependencies {
+    implementation("org.threeten:threetenbp:1.5.0")
+    implementation("androidx.datastore:datastore-preferences:1.0.0")
+    implementation("io.github.vanpra.compose-material-dialogs:datetime:0.8.1-rc")
+    coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:1.1.6")
 
-    implementation("androidx.navigation:navigation-compose:2.7.4")
+    // Core
-    implementation("androidx.compose.material:material:1.5.4")
-
     implementation("androidx.core:core-ktx:1.9.0")
-    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.1")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.2")
-    implementation("androidx.activity:activity-compose:1.7.0")
+
+    // UI
+    implementation("androidx.activity:activity-compose:1.7.2")
     implementation(platform("androidx.compose:compose-bom:2023.03.00"))
+    implementation("androidx.navigation:navigation-compose:2.6.0")
     implementation("androidx.compose.ui:ui")
     implementation("androidx.compose.ui:ui-graphics")
     implementation("androidx.compose.ui:ui-tooling-preview")
-    implementation("androidx.compose.material3:material3")
+    implementation("androidx.compose.material3:material3:1.1.2")
+    implementation("androidx.compose.material:material:1.4.3")
+
+    // Room
+    val room_version = "2.5.2"
+    implementation("androidx.room:room-runtime:$room_version")
+    annotationProcessor("androidx.room:room-compiler:$room_version")
+    ksp("androidx.room:room-compiler:$room_version")
+    implementation("androidx.room:room-ktx:$room_version")
+    implementation("androidx.room:room-paging:$room_version")
+
+    // retrofit
+    val retrofitVersion = "2.9.0"
+    implementation("com.squareup.retrofit2:retrofit:$retrofitVersion")
+    implementation("com.squareup.okhttp3:logging-interceptor:4.11.0")
+    implementation("androidx.paging:paging-compose:3.2.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1")
+    implementation("com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0")
+
+    // Tests
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
@@ -69,4 +96,6 @@ dependencies {
     androidTestImplementation("androidx.compose.ui:ui-test-junit4")
     debugImplementation("androidx.compose.ui:ui-tooling")
     debugImplementation("androidx.compose.ui:ui-test-manifest")
+
+    //
 }

app/src/androidTest/java/com/example/myapplication/ExampleInstrumentedTest.kt

@@ -1,13 +1,11 @@
-package com.example.labwork
+package com.example.myapplication
 
-import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.ext.junit.runners.AndroidJUnit4
-
+import androidx.test.platform.app.InstrumentationRegistry
+import org.junit.Assert.*
 import org.junit.Test
 import org.junit.runner.RunWith
 
-import org.junit.Assert.*
-
 /**
  * Instrumented test, which will execute on an Android device.
  *
@@ -19,6 +17,6 @@ class ExampleInstrumentedTest {
     fun useAppContext() {
         // Context of the app under test.
         val appContext = InstrumentationRegistry.getInstrumentation().targetContext
-        assertEquals("com.example.labwork", appContext.packageName)
+        assertEquals("com.example.myapplication", appContext.packageName)
     }
 }

app/src/main/AndroidManifest.xml

@@ -2,7 +2,14 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
+
+
     <application
+        android:name=".BikeApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
@@ -10,13 +17,14 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/Theme.LabWork"
+        android:theme="@style/Theme.Pmudemo"
-        tools:targetApi="31">
+        tools:targetApi="31"
+        android:networkSecurityConfig="@xml/network_security_config">
         <activity
-            android:name=".MainActivity"
+            android:name=".MainComposeActivity"
             android:exported="true"
             android:label="@string/app_name"
-            android:theme="@style/Theme.LabWork">
+            android:theme="@style/Theme.Pmudemo">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/com/example/labwork/MainActivity.kt

@@ -1,22 +0,0 @@
-package com.example.labwork
-
-import android.os.Bundle
-import androidx.activity.ComponentActivity
-import androidx.activity.compose.setContent
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
-import com.example.labwork.button_navigation.MainScreen
-import com.example.labwork.ui.theme.LabWorkTheme
-
-class MainActivity : ComponentActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContent {
-            LabWorkTheme {
-                MainScreen()
-            }
-        }
-    }
-}

app/src/main/java/com/example/labwork/button_navigation/MainScreen.kt

@@ -1,21 +0,0 @@
-package com.example.labwork.button_navigation
-
-import android.annotation.SuppressLint
-
-import androidx.compose.material.Scaffold
-import androidx.compose.runtime.Composable
-import androidx.navigation.compose.rememberNavController
-
-@SuppressLint("UnusedMaterialScaffoldPaddingParameter")
-@Composable
-fun MainScreen() {
-    val navController = rememberNavController()
-    Scaffold(
-        bottomBar =  {
-            SlideNavigation(navController = navController)
-
-        }
-    ) {
-        SlideGraph(navHostController = navController)
-    }
-}

app/src/main/java/com/example/labwork/button_navigation/Screens.kt

@@ -1,40 +0,0 @@
-package com.example.labwork.button_navigation
-
-import androidx.compose.foundation.layout.fillMaxHeight
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.itemsIndexed
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.unit.dp
-import com.example.labwork.models.getItemProducts
-import com.example.labwork.pages.ListInfo
-import com.example.labwork.pages.ListProduct
-import com.example.labwork.pages.RegisteryOrLogin
-
-@Composable
-fun ScreenInfo() {
-    ListInfo()
-}
-
-@Composable
-fun ScreenProfile() {
-    RegisteryOrLogin()
-}
-
-
-@Composable
-fun ScreenListProduct() {
-    LazyColumn(
-        modifier = Modifier.fillMaxHeight().padding(bottom = 65.dp)
-    ) {
-        itemsIndexed(
-            getItemProducts()
-        )
-        {
-            _, item ->
-            ListProduct(item = item)
-        }
-    }
-}
-

app/src/main/java/com/example/labwork/button_navigation/SlideGraph.kt

@@ -1,26 +0,0 @@
-package com.example.labwork.button_navigation
-
-
-import androidx.compose.runtime.Composable
-import androidx.navigation.NavHostController
-import androidx.navigation.compose.NavHost
-import androidx.navigation.compose.composable
-
-
-@Composable
-fun SlideGraph(
-    navHostController: NavHostController
-) {
-    NavHost(navController = navHostController, startDestination = "Profile"){
-
-        composable("Profile"){
-            ScreenProfile()
-        }
-        composable("Info"){
-            ScreenInfo()
-        }
-        composable("ListProduct"){
-            ScreenListProduct()
-        }
-    }
-}

app/src/main/java/com/example/labwork/button_navigation/SlideItem.kt

@@ -1,9 +0,0 @@
-package com.example.labwork.button_navigation
-
-import com.example.labwork.R
-
-sealed class SlideItem(val title: String, val iconId: Int, val route: String){
-    object ScreenInfo: SlideItem("Информация", R.drawable.baseline_info,"Info" )
-    object ScreenProfile: SlideItem("Профиль", R.drawable.baseline_account_circle,"Profile" )
-    object ScreenListProduct: SlideItem("Товары", R.drawable.baseline_manage_search,"ListProduct" )
-}

app/src/main/java/com/example/labwork/button_navigation/SlideNavigation.kt

@@ -1,67 +0,0 @@
-package com.example.labwork.button_navigation
-
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.BottomNavigation
-import androidx.compose.material.BottomNavigationItem
-import androidx.compose.material.Icon
-import androidx.compose.material.SnackbarDefaults.backgroundColor
-import androidx.compose.material.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.draw.shadow
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.navigation.NavController
-import androidx.navigation.compose.currentBackStackEntryAsState
-import com.example.labwork.ui.theme.DarkBluePolitech
-import com.example.labwork.ui.theme.LightBluePolitech
-
-
-@Composable
-fun SlideNavigation(
-    navController: NavController
-) {
-    val listItems = listOf(
-        SlideItem.ScreenInfo,
-        SlideItem.ScreenProfile,
-        SlideItem.ScreenListProduct
-    )
-
-    BottomNavigation(
-        backgroundColor = Color.White,
-        modifier = Modifier.padding(10.dp),
-        elevation =  5.dp
-
-    ) {
-        val backStackEntry by navController.currentBackStackEntryAsState()
-        val currentRout = backStackEntry?.destination?.route
-        listItems.forEach { item ->
-            BottomNavigationItem(
-                selected = currentRout == item.route,
-                onClick = {
-                          navController.navigate(item.route)
-                          },
-                icon = {
-                    Icon(
-                        painter = painterResource(id = item.iconId),
-                        contentDescription = "Icon"
-                    )
-                },
-                label = {
-                    Text(
-                        text = item.title,
-                        fontSize = 9.sp
-                    )
-                },
-                selectedContentColor = LightBluePolitech,
-                unselectedContentColor = DarkBluePolitech
-            )
-        }
-    }
-}

app/src/main/java/com/example/labwork/models/ItemProduct.kt

@@ -1,25 +0,0 @@
-package com.example.labwork.models
-
-import com.example.labwork.R
-import java.io.Serializable
-
-data class ItemProduct(
-    val imageId: Int,
-    val name: String,
-    val about: String
-) : Serializable
-
-fun getItemProducts(): List<ItemProduct> {
-    return listOf(
-        ItemProduct(R.drawable.baseline_menu_book,"Золотая рыбка","Старик трудолюбивый (трижды забрасывал невод), добрый (отпустил просящую о пощаде единственную добычу), покорный (не перечит жене). Появление волшебной рыбки проявило алчную натуру женщины: требовательную, грубую, жаждущую от корыта до возможности быть владычицей морскою."),
-        ItemProduct(R.drawable.baseline_menu_book,"451° по Фаренгейту","Мастер мирового масштаба, совмещающий в литературе несовместимое. Создатель таких ярчайших шедевров, как \"Марсианские хроники\", \"451° по Фаренгейту"),
-        ItemProduct(R.drawable.baseline_menu_book,"1984","Своеобразный антипод второй великой антиутопии XX века - \"О дивный новый мир\" Олдоса Хаксли. Что, в сущности, страшнее: доведенное до абсурда \"общество потребления\""),
-        ItemProduct(R.drawable.baseline_menu_book,"Мастер и Маргарита","Один из самых загадочных и удивительных романов XX века. «Мастер и Маргарита» – визитная карточка Михаила Булгакова. Более десяти лет он работал над"),
-        ItemProduct(R.drawable.baseline_menu_book,"Шантарам","Представляем читателю один из самых поразительных романов начала XXI века (в 2015 году получивший долгожданное продолжение – «Тень горы»)."),
-        ItemProduct(R.drawable.baseline_menu_book,"Цветы для Элджернона","Сорок лет назад это считалось фантастикой. Сорок лет назад это читалось как фантастика."),
-        ItemProduct(R.drawable.baseline_menu_book,"Три товарища","Трое друзей - Робби, отчаянный автогонщик Кестер и \"последний романтик\" Ленц прошли Первую мировую войну."),
-        ItemProduct(R.drawable.baseline_menu_book,"Портрет Дориана Грея","«Портрет Дориана Грея» – одно из величайших произведений последних полутора столетий, роман, который пытались запретить, а автора осуждали"),
-        ItemProduct(R.drawable.baseline_menu_book,"Маленький принц","«Маленький принц» — аллегорическая повесть, наиболее известное произведение Антуана де Сент-Экзюпери. ")
-
-    )
-}

app/src/main/java/com/example/labwork/pages/ListAuthorization.kt

@@ -1,244 +0,0 @@
-package com.example.labwork.pages
-
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.material.Button
-import androidx.compose.material.ButtonDefaults
-import androidx.compose.material.IconButton
-import androidx.compose.material.Text
-import androidx.compose.material.TextField
-import androidx.compose.material.TextFieldDefaults
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.text.TextStyle
-import androidx.compose.ui.text.input.PasswordVisualTransformation
-import androidx.compose.ui.text.input.VisualTransformation
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.navigation.NavController
-import androidx.navigation.compose.NavHost
-import androidx.navigation.compose.composable
-import androidx.navigation.compose.rememberNavController
-import com.example.labwork.R
-import com.example.labwork.ui.theme.LightBluePolitech
-
-@Composable
-fun RegisteryOrLogin() {
-    val navController = rememberNavController()
-
-    NavHost(navController, startDestination = "login") {
-        composable("login") {
-            LoginPage(navController)
-        }
-        composable("register") {
-            RegisteryPage(navController)
-        }
-    }
-}
-@Composable
-fun LoginPage(navController: NavController) {
-    var username by remember { mutableStateOf("") }
-    var password by remember { mutableStateOf("") }
-    var showPassword by remember { mutableStateOf(false) }
-
-    Column(
-        modifier = Modifier
-            .fillMaxSize()
-            .padding(16.dp),
-        verticalArrangement = Arrangement.Center,
-        horizontalAlignment = Alignment.CenterHorizontally
-    ) {
-        Image(
-            painter = painterResource(R.drawable.logo_ulstu),
-            contentDescription = "Logo",
-            modifier = Modifier.size(200.dp)
-        )
-        Spacer(modifier = Modifier.height(16.dp))
-
-        TextField(
-            value = username,
-            onValueChange = { username = it },
-            label = { Text("Логин") },
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp),
-            textStyle = TextStyle(fontSize = 16.sp),
-            colors = TextFieldDefaults.textFieldColors(
-                cursorColor = LightBluePolitech,
-                backgroundColor = Color.White,
-                textColor = LightBluePolitech,
-                unfocusedLabelColor = LightBluePolitech,
-                focusedIndicatorColor = LightBluePolitech,
-                unfocusedIndicatorColor = LightBluePolitech,
-                focusedLabelColor = LightBluePolitech
-            ),
-            singleLine = true
-        )
-        Spacer(modifier = Modifier.height(8.dp))
-
-        TextField(
-            value = password,
-            onValueChange = { password = it },
-            label = { Text("Пароль") },
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp),
-            textStyle = TextStyle(fontSize = 16.sp),
-            colors = TextFieldDefaults.textFieldColors(
-                cursorColor = LightBluePolitech,
-                backgroundColor = Color.White,
-                textColor = LightBluePolitech,
-                unfocusedLabelColor = LightBluePolitech,
-                focusedIndicatorColor = LightBluePolitech,
-                unfocusedIndicatorColor = LightBluePolitech,
-                focusedLabelColor = LightBluePolitech
-            ),
-            singleLine = true,
-            visualTransformation = if (showPassword) VisualTransformation.None else PasswordVisualTransformation(),
-            trailingIcon = {
-                IconButton(
-                    onClick = { showPassword = !showPassword }
-                ) {
-                    Image(
-                        painter = if(showPassword) painterResource(R.drawable.baseline_visibility) else painterResource(R.drawable.baseline_visibility_off),
-                        contentDescription = "LogoVissable",
-                        modifier = Modifier.size(24.dp)
-                    )
-                }
-            }
-        )
-        Spacer(modifier = Modifier.height(8.dp))
-
-        Button(
-            onClick = { /* Login logic */ },
-            colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech, ),
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp)
-        ) {
-            Text(text = "Авторизоваться", color = Color.White)
-        }
-        Spacer(modifier = Modifier.height(8.dp))
-
-        Button(
-            onClick = { navController.navigate("register") },
-            colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech),
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp)
-        ) {
-            Text(text = "Регистрация", color = Color.White)
-        }
-    }
-}
-
-@Composable
-fun RegisteryPage(navController: NavController) {
-    var username by remember { mutableStateOf("") }
-    var password by remember { mutableStateOf("") }
-    var confirmPassword by remember { mutableStateOf("") }
-
-    Column(
-        modifier = Modifier
-            .fillMaxSize()
-            .padding(16.dp),
-        verticalArrangement = Arrangement.Center,
-        horizontalAlignment = Alignment.CenterHorizontally
-    ) {
-        Image(
-            painter = painterResource(R.drawable.logo_ulstu),
-            contentDescription = "Logo",
-            modifier = Modifier.size(200.dp)
-        )
-        Spacer(modifier = Modifier.height(16.dp))
-
-        TextField(
-            value = username,
-            onValueChange = { username = it },
-            label = { Text("Логин") },
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp),
-            textStyle = TextStyle(fontSize = 16.sp),
-            colors = TextFieldDefaults.textFieldColors(
-                cursorColor = LightBluePolitech,
-                backgroundColor = Color.White,
-                textColor = LightBluePolitech,
-                unfocusedLabelColor = LightBluePolitech,
-                focusedIndicatorColor = LightBluePolitech,
-                unfocusedIndicatorColor = LightBluePolitech,
-                focusedLabelColor = LightBluePolitech
-            ),
-            singleLine = true
-        )
-        Spacer(modifier = Modifier.height(8.dp))
-
-        TextField(
-            value = password,
-            onValueChange = { password = it },
-            label = { Text("Пароль") },
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp),
-            textStyle = TextStyle(fontSize = 16.sp),
-            colors = TextFieldDefaults.textFieldColors(
-                backgroundColor = Color.White,
-                textColor = LightBluePolitech,
-                unfocusedLabelColor = LightBluePolitech,
-                focusedIndicatorColor = LightBluePolitech,
-                unfocusedIndicatorColor = LightBluePolitech,
-                focusedLabelColor = LightBluePolitech
-            ),
-            singleLine = true,
-            visualTransformation = PasswordVisualTransformation()
-        )
-        Spacer(modifier = Modifier.height(8.dp))
-
-        TextField(
-            value = confirmPassword,
-            onValueChange = { confirmPassword = it },
-            label = { Text("Подтвердите пароль") },
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp),
-            textStyle = TextStyle(fontSize = 16.sp),
-            colors = TextFieldDefaults.textFieldColors(
-                backgroundColor = Color.White,
-                textColor = LightBluePolitech,
-                unfocusedLabelColor = LightBluePolitech,
-                focusedIndicatorColor = LightBluePolitech,
-                unfocusedIndicatorColor = LightBluePolitech,
-                focusedLabelColor = LightBluePolitech
-            ),
-            singleLine = true,
-            visualTransformation = PasswordVisualTransformation()
-        )
-        Spacer(modifier = Modifier.height(8.dp))
-
-        Button(
-            onClick = { /* Register logic */ },
-            colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech),
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(horizontal = 16.dp)
-        ) {
-            Text(text = "Зарегистрироваться", color = Color.White)
-        }
-        Spacer(modifier = Modifier.height(8.dp))
-
-    }
-}

app/src/main/java/com/example/labwork/pages/ListInfo.kt

@@ -1,335 +0,0 @@
-package com.example.labwork.pages
-
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.Tab
-import androidx.compose.material.TabRow
-import androidx.compose.material.TabRowDefaults
-import androidx.compose.material.TabRowDefaults.tabIndicatorOffset
-import androidx.compose.material.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.setValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Alignment.Companion.CenterHorizontally
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.draw.shadow
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import com.example.labwork.R
-import com.example.labwork.ui.theme.LightBluePolitech
-
-
-@Composable
-fun ListInfo() {
-    var selectedTab by remember { mutableStateOf(0) }
-    Box(modifier = Modifier.fillMaxSize()) {
-        Column(
-            modifier = Modifier
-                .padding(16.dp)
-                .align(Alignment.TopCenter)
-        ) {
-            Box(
-                modifier = Modifier
-                    .size(200.dp)
-                    .align(CenterHorizontally)
-                    .clip(shape = RoundedCornerShape(8.dp))
-                    .shadow(16.dp, shape = RoundedCornerShape(8.dp))
-            ) {
-                Image(
-                    painter = painterResource(id = R.drawable.logo_ulstu),
-                    contentDescription = "Menu Image",
-                    Modifier.fillMaxSize()
-                )
-            }
-            Spacer(modifier = Modifier.height(16.dp))
-            TabRow(
-                selectedTabIndex = selectedTab,
-                backgroundColor = LightBluePolitech,
-                contentColor = Color.White,
-                indicator = { tabPositions ->
-                    TabRowDefaults.Indicator(
-                        color = Color.White,
-                        height = 4.dp,
-                        modifier = Modifier
-                            .tabIndicatorOffset(tabPositions[selectedTab])
-                    )
-                },
-                modifier = Modifier.shadow(16.dp)
-            ) {
-                Tab(
-                    selected = selectedTab == 0,
-                    onClick = { selectedTab = 0 }
-                ) {
-                    Text(
-                        text = "Университет",
-                        modifier = Modifier.padding(8.dp),
-                        textAlign = TextAlign.Center,
-                    )
-                }
-                Tab(
-                    selected = selectedTab == 1,
-                    onClick = { selectedTab = 1 }
-                ) {
-                    Text(
-                        text = "Библиотека",
-                        modifier = Modifier.padding(8.dp),
-                        textAlign = TextAlign.Center,
-                    )
-                }
-                Tab(
-                    selected = selectedTab == 2,
-                    onClick = { selectedTab = 2 }
-                ) {
-                    Text(
-                        text = "Контакты разработчиков",
-                        modifier = Modifier
-                            .padding(8.dp),
-                        textAlign = TextAlign.Center,
-                    )
-                }
-            }
-            Spacer(modifier = Modifier.height(16.dp))
-            when (selectedTab) {
-                0 -> InfoUniver()
-                1 -> InfoBiblio()
-                2 -> InfoProgrammer()
-            }
-        }
-    }
-}
-
-@Composable
-fun InfoUniver() {
-    LazyColumn(
-        modifier = Modifier.fillMaxSize().padding(bottom = 65.dp),
-        contentPadding = PaddingValues(16.dp)
-    ) {
-        item {
-            Text(
-                text = "Основные сведения",
-                fontSize = 24.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Spacer(modifier = Modifier.height(16.dp))
-
-            Text(
-                "Полное наименование образовательной организации",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(
-                text = "Федеральное государственное бюджетное образовательное учреждение высшего образования \"Ульяновский государственный технический университет\""
-            )
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Сокращенное (при наличии) наименование образовательной организации",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "УлГТУ, Ульяновский государственный технический университет")
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Дата создания образовательной организации",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "18.09.1957")
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Адрес местонахождения образовательной организации",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "432027, Ульяновская область, г. Ульяновск, улица Северный Венец, дом 32")
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Филиалы образовательной организации",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "Имеются")
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Представительства образовательной организации",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "Имеются")
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Режим, график работы",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "Понедельник-четверг - 8.30 - 17.22")
-            Text(text = "Пятница- 8.30 - 16.22")
-            Text(text = "Перерыв 13.00 до 13.40")
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Контактные телефоны",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "8(8422)43-02-37")
-            Spacer(modifier = Modifier.height(8.dp))
-
-            Text(
-                "Адреса электронной почты",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Text(text = "rector@ulstu.ru")
-        }
-    }
-}
-
-@Composable
-fun InfoBiblio() {
-    LazyColumn(
-        modifier = Modifier.fillMaxSize().padding(bottom = 65.dp),
-        contentPadding = PaddingValues(16.dp)
-    ) {
-        item {
-            Text(
-                text = "Основные сведения",
-                fontSize = 24.sp,
-                fontWeight = FontWeight.Bold
-            )
-            Spacer(modifier = Modifier.height(16.dp))
-
-            Text("Технический университет подобным сокровищем обладает!",modifier = Modifier.padding(bottom = 16.dp))
-
-            Text(
-                text = "Наша Научная библиотека соответствует всем современным требованиям технического вуза. Постоянно пополняющийся библиотечный фонд составляет более 1100 тыс. единиц хранения, формируется по специальностям (с учетом всех направлений учебного и научного процессов университета) изданиями, отвечающими требованиям программ высшей школы. В фонде имеются зарубежные издания, диссертации, авторефераты, документы на электронных носителях. Пользователям предоставляется доступ к электронным ресурсам удалённого доступа, входящим в состав электронно-библиотечной системы «ЭльбруС» УлГТУ."
-                ,modifier = Modifier.padding(bottom = 16.dp)
-            )
-
-            Text(
-                text = "К услугам читателей: зал каталогов, aвонементы научной и учебной литературы, общий читальный зал, отдел экономической и иностранной литературы. Выдача комплектов учебников первокурсникам, зал для аспирантов и преподавателей, зал периодических изданий, читальный зал машиностроительного факультета, читальный зал электронных ресурсов, отдел художественной литературы, научно-библиографический отдел, библиотека Института авиационных технологий и управления, Барышского колледжа — филиала УлГТУ."
-                ,modifier = Modifier.padding(bottom = 16.dp)
-            )
-
-            Text(
-                text = "Абонемент учебной литературы обеспечивает студентов и лицеистов учебниками и учебными пособиями в соответствии с учебными программами. Научные, научно-популярные и справочные издания для подготовки рефератов, докладов, курсовых и дипломных работ, а также издания по орган. Располагает богатым фондом справочных и информационных изданий. В отделе художественной литературы собраны книги на любой вкус: есть классическая русская и зарубежная, современная отечественная и иностранная литература; тематика книг - от фантастики, детективов, приключений и женских романов до серьезной, философской литературы. В отделе иностранной литературы хранятся учебные и научные издания на английском, немецком и французском языках. Читальный зал электронных ресурсов (медиатека) НБ УлГТУ располагает фондом CD, DVD по различным отраслям знаний. На территории Научной библиотеки размещены точки доступа в Интернет по технологии Wi-Fi. Право доступа в беспроводную локальной сети предоставляется всем желающим студентам и сотрудникам университета, имеющим учетную запись пользователя корпоративной сети университета."
-                ,modifier = Modifier.padding(bottom = 16.dp)
-            )
-
-            Text(
-                text = "События библиотечной жизни оперативно отражаются на нашем сайте (http://lib.ulstu.ru), сайт также обеспечивает круглосуточный доступ пользователей к каталогам и базам данных библиотеки."
-                ,modifier = Modifier.padding(bottom = 16.dp)
-            )
-
-            Text(
-                text = "Научная библиотека ведёт активную работу в помощь духовно-нравственному, патриотическому и эстетическому воспитанию своих читателей, используя различные формы и методы библиотечного обслуживания, такие как: книжные выставки, тематические обзоры, беседы, творческие встречи с интересными людьми, конкурсы и викторины."
-                ,modifier = Modifier.padding(bottom = 16.dp)
-            )
-
-            Spacer(modifier = Modifier.height(16.dp))
-
-            Text("Адреса электронной почты",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold)
-            Text(text = "rector@ulstu.ru")
-        }
-    }
-}
-
-@Composable
-fun InfoProgrammer() {
-    LazyColumn(
-        modifier = Modifier.fillMaxSize().padding(bottom = 65.dp),
-        contentPadding = PaddingValues(16.dp)
-    ) {
-        item {
-            Text(
-                text = "Основные сведения",
-                fontSize = 24.sp,
-                fontWeight = FontWeight.Bold
-            )
-
-            Box(
-                modifier = Modifier
-                    .size(200.dp)
-                    .clip(shape = RoundedCornerShape(8.dp))
-            ) {
-                Image(
-                    painter = painterResource(id = R.drawable.kashinmaksim),
-                    contentDescription = "Maxim",
-                    contentScale = ContentScale.Crop,
-                    modifier = Modifier.fillMaxSize()
-                )
-            }
-
-            Spacer(modifier = Modifier.height(16.dp))
-
-            Text("Подробная информация",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold)
-            Text(
-                text = "Кашин Максим Игоревич"
-            )
-
-            Text("Личная информация",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold)
-            Text(
-                text = "Родной город: Сыктывкар"
-            )
-            Text(
-                text = "Языки: Русский"
-            )
-            Text(
-                text = "День рождения: 23 декабря"
-            )
-
-            Text("Место работы",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold)
-            Text(
-                text = "ДЦТ ЛАОП"
-            )
-
-            Text("Образование",
-                fontSize = 16.sp,
-                fontWeight = FontWeight.Bold)
-            Text(
-                text = "Вуз: УлГТУ"
-            )
-            Text(
-                text = "Факультет: Факультет информационных систем и технологий"
-            )
-            Text(
-                text = "Специальность: Программная инженерия"
-            )
-            Text(
-                text = "Школа: Школа № 7 Димитровград до 2021 г."
-            )
-        }
-    }
-}

app/src/main/java/com/example/labwork/pages/ListProduct.kt

@@ -1,160 +0,0 @@
-package com.example.labwork.pages
-
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.animation.core.animateDpAsState
-import androidx.compose.animation.core.animateFloatAsState
-import androidx.compose.animation.expandIn
-import androidx.compose.animation.fadeIn
-import androidx.compose.animation.fadeOut
-import androidx.compose.animation.shrinkOut
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material.Button
-import androidx.compose.material.ButtonDefaults
-import androidx.compose.material.Card
-import androidx.compose.material.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.scale
-import androidx.compose.ui.draw.shadow
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import com.example.labwork.models.ItemProduct
-import com.example.labwork.ui.theme.LightBluePolitech
-
-
-@Composable
-fun ListProduct(item: ItemProduct) {
-    var isFullAbout by remember { mutableStateOf(false) }
-    val scale by animateFloatAsState(if (isFullAbout) 1f else 0f)
-    val textSize by animateDpAsState(if (isFullAbout) 18.dp else 24.dp)
-
-    Card(
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(10.dp),
-        shape = RoundedCornerShape(15.dp),
-        elevation = 5.dp
-    ) {
-        Box {
-            Row(verticalAlignment = Alignment.CenterVertically) {
-                Column {
-                    Image(
-                        painter = painterResource(id = item.imageId),
-                        contentDescription = "book",
-                        contentScale = ContentScale.Crop,
-                        modifier = Modifier
-                            .padding(10.dp)
-                            .size(128.dp)
-                            .shadow(2.dp)
-                    )
-                    Button(
-                        colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech),
-                        modifier = Modifier
-                            .padding(start = 9.dp, bottom = 9.dp)
-                            .size(height = 32.dp, width = 128.dp),
-                        onClick = {
-                            isFullAbout = !isFullAbout
-                        },
-                        shape = RoundedCornerShape(15.dp)
-                    ) {
-                        Text(
-                            text = if(isFullAbout) "Убрать" else "Подробнее",
-                            color = Color.White,
-                            fontSize = 10.sp,
-                            textAlign = TextAlign.Center,
-                        )
-                    }
-                    Row {
-                        Button(
-                            colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech),
-                            modifier = Modifier
-                                .padding(start = 9.dp, bottom = 9.dp)
-                                .size(height = 32.dp, width = 40.dp),
-                            onClick = {
-                                /*TODO*/
-                            },
-                            shape = RoundedCornerShape(15.dp)
-                        ) {
-                            Text(
-                                text = "+",
-                                color = Color.White,
-                                fontSize = 10.sp,
-                                textAlign = TextAlign.Center,
-                            )
-                        }
-                        Text(
-                            text = "1000",
-                            color = Color.Black,
-                            fontSize = 14.sp,
-                            textAlign = TextAlign.Center,
-                            modifier = Modifier.padding(start = 8.dp, top = 4.dp)
-                        )
-                        Button(
-                            colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech),
-                            modifier = Modifier
-                                .padding(start = 9.dp, bottom = 9.dp)
-                                .size(height = 32.dp, width = 40.dp),
-                            onClick = {
-                                /*TODO*/
-                            },
-                            shape = RoundedCornerShape(15.dp)
-                        ) {
-                            Text(
-                                text = "-",
-                                color = Color.White,
-                                fontSize = 10.sp,
-                                textAlign = TextAlign.Center,
-                            )
-                        }
-                    }
-                }
-                Column {
-                    Text(
-                        text = item.name,
-                        color = Color.Black,
-                        fontSize = textSize.value.sp,
-                        fontWeight = FontWeight.Bold,
-                        textAlign = TextAlign.Center,
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(top = 8.dp)
-                    )
-                    AnimatedVisibility(
-                        visible = isFullAbout,
-                        enter = fadeIn() + expandIn(),
-                        exit = fadeOut() + shrinkOut(),
-                        modifier = Modifier.scale(scale)
-                    ) {
-                        Text(
-                            color = Color.Black,
-                            text = item.about,
-                            maxLines = 10,
-                            fontSize = 14.sp,
-                            textAlign = TextAlign.Center,
-                            modifier = Modifier
-                                .fillMaxWidth()
-                                .padding(bottom = 8.dp)
-                        )
-                    }
-                }
-            }
-        }
-    }
-}

app/src/main/java/com/example/labwork/ui/theme/Color.kt

@@ -1,14 +0,0 @@
-package com.example.labwork.ui.theme
-
-import androidx.compose.ui.graphics.Color
-
-val Purple80 = Color(0xFFD0BCFF)
-val PurpleGrey80 = Color(0xFFCCC2DC)
-val Pink80 = Color(0xFFEFB8C8)
-
-val Purple40 = Color(0xFF6650a4)
-val PurpleGrey40 = Color(0xFF625b71)
-val Pink40 = Color(0xFF7D5260)
-
-val LightBluePolitech = Color(0xFF0158AF)
-val DarkBluePolitech = Color(0xFF123E6D)

app/src/main/java/com/example/myapplication/CinemaApplication.kt

@@ -0,0 +1,14 @@
+package com.example.myapplication
+
+import android.app.Application
+import com.example.myapplication.database.room.repository.AppContainer
+import com.example.myapplication.database.room.repository.AppDataContainer
+
+class BikeApplication : Application() {
+    lateinit var container: AppContainer
+
+    override fun onCreate() {
+        super.onCreate()
+        container = AppDataContainer(this)
+    }
+}

app/src/main/java/com/example/myapplication/MainComposeActivity.kt

@@ -0,0 +1,41 @@
+package com.example.myapplication
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.ui.Modifier
+import com.example.myapplication.ui.navigation.MainNavbar
+import com.example.myapplication.setting.DataStoreManager
+import com.example.myapplication.ui.theme.PmudemoTheme
+
+class MainComposeActivity : ComponentActivity() {
+    private val dataStoreManager = DataStoreManager(this)
+    private val isDarkTheme = mutableStateOf(true)
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        application.deleteDatabase("pmy-db")
+        setContent {
+            PmudemoTheme(darkTheme = isDarkTheme.value) {
+                LaunchedEffect(key1 = true) {
+                    dataStoreManager.getSettings().collect { setting ->
+                        isDarkTheme.value = setting.isDarkTheme
+                    }
+                }
+                Surface(
+                    modifier = Modifier.fillMaxSize(),
+                    color = MaterialTheme.colorScheme.background
+                ) {
+                    MainNavbar(
+                        isDarkTheme = isDarkTheme,
+                        dataStoreManager = dataStoreManager
+                    )
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/example/myapplication/api/ApiStatus.kt

@@ -0,0 +1,5 @@
+package com.example.myapplication.api
+
+enum class ApiStatus {
+    LOADING, ERROR, DONE
+}

app/src/main/java/com/example/myapplication/api/MyServerService.kt

@@ -0,0 +1,176 @@
+package com.example.myapplication.api
+
+import com.example.myapplication.api.bike.remote.BikeRemote
+import com.example.myapplication.api.rent.remote.RentRemote
+import com.example.myapplication.api.item.remote.ItemFromBikeRemote
+import com.example.myapplication.api.item.remote.ItemRemote
+import com.example.myapplication.api.item.remote.ItemWithBikeRemote
+import com.example.myapplication.api.report.remote.ReportRemote
+import com.example.myapplication.api.user.remote.UserRemote
+import com.example.myapplication.setting.LocalDateTimeSerializer
+import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.modules.SerializersModule
+import kotlinx.serialization.modules.contextual
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import retrofit2.http.Body
+import retrofit2.http.DELETE
+import retrofit2.http.GET
+import retrofit2.http.POST
+import retrofit2.http.PUT
+import retrofit2.http.Path
+import retrofit2.http.Query
+
+interface MyServerService {
+
+    @GET("report")
+    suspend fun getReportInfo(
+        @Query("fromDate") fromDate: String,
+        @Query("toDate") toDate: String
+    ): List<ReportRemote>
+    @GET("rents")
+    suspend fun getRents(): List<RentRemote>
+    @GET("users/{id}")
+    suspend fun getUser(
+        @Path("id") id: Int,
+    ): UserRemote
+
+    @GET("users")
+    suspend fun getUsers(): List<UserRemote>
+
+    @POST("users")
+    suspend fun createUser(
+        @Body user: UserRemote,
+    ): UserRemote
+    @PUT("users/{id}")
+    suspend fun updateUser(
+        @Path("id") id: Int,
+        @Body user: UserRemote,
+    ): UserRemote
+    @DELETE("users/{id}")
+    suspend fun deleteUser(
+        @Path("id") id: Int,
+    ): UserRemote
+
+    @GET("bikes")
+    suspend fun getBikes(
+        @Query("_page") page: Int,
+        @Query("_limit") limit: Int,
+    ): List<BikeRemote>
+
+    @GET("bikes/{id}")
+    suspend fun getBike(
+        @Path("id") id: Int,
+    ): BikeRemote
+
+    @POST("bikes")
+    suspend fun createBike(
+        @Body bike: BikeRemote,
+    ): BikeRemote
+
+    @PUT("bikes/{id}")
+    suspend fun updateBike(
+        @Path("id") id: Int,
+        @Body bike: BikeRemote,
+    ): BikeRemote
+
+    @DELETE("bikes/{id}")
+    suspend fun deleteBike(
+        @Path("id") id: Int,
+    )
+
+    @GET("bikes/{bikeId}/items")
+    suspend fun getItemsForBike(
+        @Path("bikeId") bikeId: Int
+    ): List<ItemFromBikeRemote>
+
+    @GET("items/{id}?_expand=bike")
+    suspend fun getItem(
+        @Path("id") id: Int,
+    ): ItemWithBikeRemote
+
+    @POST("items")
+    suspend fun createItem(
+        @Body item: ItemRemote,
+    ): ItemRemote
+
+    @PUT("items/{id}")
+    suspend fun updateItem(
+        @Path("id") id: Int,
+        @Body item: ItemRemote,
+    ): ItemRemote
+
+    @DELETE("items/{id}")
+    suspend fun deleteItem(
+        @Path("id") id: Int,
+    ): ItemFromBikeRemote
+
+    @GET("users/{id}")
+    suspend fun getUserCart(
+        @Path("id") id: Int,
+    ): UserRemote
+
+    @PUT("users/{id}")
+    suspend fun updateUserCart(
+        @Path("id") id: Int,
+        @Body userRemote: UserRemote,
+    ): UserRemote
+
+    @GET("rents")
+    suspend fun getRents(
+        @Query("_page") page: Int,
+        @Query("_limit") limit: Int,
+    ): List<RentRemote>
+
+    @GET("rents/{id}")
+    suspend fun getRent(
+        @Path("id") id: Int,
+    ): RentRemote
+
+    @POST("rents")
+    suspend fun createRent(
+        @Body bike: RentRemote,
+    ): RentRemote
+
+    @DELETE("rents/{id}")
+    suspend fun deleteRent(
+        @Path("id") id: Int
+    )
+
+    @PUT("rents/{id}")
+    suspend fun updateRent(
+        @Path("id") id: Int,
+        @Body rentRemote: RentRemote,
+    ): RentRemote
+
+    companion object {
+        //Раздача с тлф
+        private const val BASE_URL = "http://192.168.138.47:8079/"
+        //Пк дома
+        /*private const val BASE_URL = "http://192.168.0.104:8079/"*/
+        //private const val BASE_URL = "http://10.0.2.2:8079/"
+
+        @Volatile
+        private var INSTANCE: MyServerService? = null
+
+        fun getInstance(): MyServerService {
+            return INSTANCE ?: synchronized(this) {
+                val logger = HttpLoggingInterceptor()
+                logger.level = HttpLoggingInterceptor.Level.BASIC
+                val client = OkHttpClient.Builder().addInterceptor(logger).build()
+                val json = Json {
+                    ignoreUnknownKeys = true
+                    serializersModule = SerializersModule {
+                        contextual(LocalDateTimeSerializer)
+                    }
+                }
+                return Retrofit.Builder().baseUrl(BASE_URL).client(client)
+                    .addConverterFactory(json.asConverterFactory("application/json".toMediaType()))
+                    .build().create(MyServerService::class.java).also { INSTANCE = it }
+            }
+        }
+    }
+}

app/src/main/java/com/example/myapplication/api/bike/mediator/BikeRemoteMediator.kt

@@ -0,0 +1,122 @@
+package com.example.myapplication.api.bike.mediator
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.LoadType
+import androidx.paging.PagingState
+import androidx.paging.RemoteMediator
+import androidx.room.withTransaction
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.bike.remote.toBike
+import com.example.myapplication.api.item.remote.toItem
+import com.example.myapplication.database.AppDatabase
+import com.example.myapplication.database.remotekeys.model.RemoteKeyType
+import com.example.myapplication.database.remotekeys.model.RemoteKeys
+import com.example.myapplication.database.remotekeys.repository.offline.OfflineRemoteKeyRepository
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.repository.offline.OfflineBikeRepository
+import com.example.myapplication.database.room.repository.offline.OfflineItemRepository
+import retrofit2.HttpException
+import java.io.IOException
+
+@OptIn(ExperimentalPagingApi::class)
+class BikeRemoteMediator(
+    private val service: MyServerService,
+    private val dbBikeRepository: OfflineBikeRepository,
+    private val dbItemRepository: OfflineItemRepository,
+    private val dbRemoteKeyRepository: OfflineRemoteKeyRepository,
+    private val database: AppDatabase
+) : RemoteMediator<Int, Bike>() {
+
+    override suspend fun initialize(): InitializeAction {
+        return InitializeAction.LAUNCH_INITIAL_REFRESH
+    }
+
+    override suspend fun load(
+        loadType: LoadType,
+        state: PagingState<Int, Bike>
+    ): MediatorResult {
+        val page = when (loadType) {
+            LoadType.REFRESH -> {
+                val remoteKeys = getRemoteKeyClosestToCurrentPosition(state)
+                remoteKeys?.nextKey?.minus(1) ?: 1
+            }
+
+            LoadType.PREPEND -> {
+                val remoteKeys = getRemoteKeyForFirstItem(state)
+                remoteKeys?.prevKey
+                    ?: return MediatorResult.Success(endOfPaginationReached = remoteKeys != null)
+            }
+
+            LoadType.APPEND -> {
+                val remoteKeys = getRemoteKeyForLastItem(state)
+                remoteKeys?.nextKey
+                    ?: return MediatorResult.Success(endOfPaginationReached = remoteKeys != null)
+            }
+        }
+
+        try {
+            val bikes = service.getBikes(page, state.config.pageSize).map { it.toBike() }
+            val bikesWithItems = bikes.map { bike ->
+                service.getItemsForBike(bike.uid).map {
+                    service.getItem(it.id).toItem()
+                }
+            }
+            val endOfPaginationReached = bikes.isEmpty()
+            database.withTransaction {
+                if (loadType == LoadType.REFRESH) {
+                    dbRemoteKeyRepository.deleteRemoteKey(RemoteKeyType.CINEMA)
+                    dbItemRepository.clearItems()
+                    dbBikeRepository.clearBikes()
+                }
+                val prevKey = if (page == 1) null else page - 1
+                val nextKey = if (endOfPaginationReached) null else page + 1
+                val keys = bikes.map {
+                    RemoteKeys(
+                        entityId = it.uid,
+                        type = RemoteKeyType.CINEMA,
+                        prevKey = prevKey,
+                        nextKey = nextKey
+                    )
+                }
+                dbRemoteKeyRepository.createRemoteKeys(keys)
+                dbBikeRepository.insertBikes(bikes)
+                bikesWithItems.forEach {
+                    try {
+                        dbItemRepository.insertItems(it)
+                    } catch (_: Exception) {
+                    }
+                }
+            }
+            return MediatorResult.Success(endOfPaginationReached = endOfPaginationReached)
+        } catch (exception: IOException) {
+            return MediatorResult.Error(exception)
+        } catch (exception: HttpException) {
+            return MediatorResult.Error(exception)
+        }
+    }
+
+    private suspend fun getRemoteKeyForLastItem(state: PagingState<Int, Bike>): RemoteKeys? {
+        return state.pages.lastOrNull { it.data.isNotEmpty() }?.data?.lastOrNull()
+            ?.let { bike ->
+                dbRemoteKeyRepository.getAllRemoteKeys(bike.uid, RemoteKeyType.CINEMA)
+            }
+    }
+
+    private suspend fun getRemoteKeyForFirstItem(state: PagingState<Int, Bike>): RemoteKeys? {
+        return state.pages.firstOrNull { it.data.isNotEmpty() }?.data?.firstOrNull()
+            ?.let { bike ->
+                dbRemoteKeyRepository.getAllRemoteKeys(bike.uid, RemoteKeyType.CINEMA)
+            }
+    }
+
+    private suspend fun getRemoteKeyClosestToCurrentPosition(
+        state: PagingState<Int, Bike>
+    ): RemoteKeys? {
+        return state.anchorPosition?.let { position ->
+            state.closestItemToPosition(position)?.uid?.let { bikeUid ->
+                dbRemoteKeyRepository.getAllRemoteKeys(bikeUid, RemoteKeyType.CINEMA)
+            }
+        }
+    }
+
+}

app/src/main/java/com/example/myapplication/api/bike/remote/BikeRemote.kt

@@ -0,0 +1,26 @@
+package com.example.myapplication.api.bike.remote
+
+import com.example.myapplication.database.room.model.bike.Bike
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class BikeRemote(
+    val id: Int = 0,
+    val name: String = "",
+    val description: String = "",
+    val image: ByteArray? = null
+)
+
+fun BikeRemote.toBike(): Bike = Bike(
+    id,
+    name,
+    description,
+    image
+)
+
+fun Bike.toBikeRemote(): BikeRemote = BikeRemote(
+    uid,
+    name,
+    description,
+    image
+)

app/src/main/java/com/example/myapplication/api/bike/repository/RestBikeRepository.kt

@@ -0,0 +1,93 @@
+package com.example.myapplication.api.bike.repository
+
+import android.util.Log
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.bike.mediator.BikeRemoteMediator
+import com.example.myapplication.api.bike.remote.toBike
+import com.example.myapplication.api.bike.remote.toBikeRemote
+import com.example.myapplication.database.room.repository.AppContainer
+import com.example.myapplication.database.AppDatabase
+import com.example.myapplication.database.remotekeys.repository.offline.OfflineRemoteKeyRepository
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.model.bike.BikeWithItems
+import com.example.myapplication.database.room.model.item.ItemFromBike
+import com.example.myapplication.database.room.repository.offline.OfflineBikeRepository
+import com.example.myapplication.database.room.repository.offline.OfflineItemRepository
+import com.example.myapplication.database.room.repository.online.BikeRepository
+import kotlinx.coroutines.flow.Flow
+
+class RestBikeRepository(
+    private val service: MyServerService,
+    private val dbBikeRepository: OfflineBikeRepository,
+    private val dbItemRepository: OfflineItemRepository,
+    private val dbRemoteKeyRepository: OfflineRemoteKeyRepository,
+    private val database: AppDatabase
+) : BikeRepository {
+    override fun getAllBikes(): Flow<PagingData<Bike>> {
+        Log.d(RestBikeRepository::class.simpleName, "Get bikes")
+
+        val pagingSourceFactory = { dbBikeRepository.getAllBikesPagingSource() }
+
+        @OptIn(ExperimentalPagingApi::class)
+        return Pager(
+            config = PagingConfig(
+                pageSize = AppContainer.LIMIT,
+                enablePlaceholders = false
+            ),
+            remoteMediator = BikeRemoteMediator(
+                service,
+                dbBikeRepository,
+                dbItemRepository,
+                dbRemoteKeyRepository,
+                database,
+            ),
+            pagingSourceFactory = pagingSourceFactory
+        ).flow
+    }
+
+    override suspend fun getBike(uid: Int): BikeWithItems {
+        val bike = service.getBike(uid).toBike()
+
+        val items = service.getItemsForBike(uid).map { x ->
+            ItemFromBike(
+                x.id,
+                x.dateTime,
+                x.weight,
+                x.radius,
+                x.colorbike,
+                x.maxCount - service.getRents().flatMap { rent ->
+                    rent.items.filter { item -> item.id == x.id }
+                }.sumOf { item -> item.count },
+                uid
+            )
+        }
+        return BikeWithItems(bike, items)
+    }
+
+    override suspend fun insertBike(bike: Bike) {
+        service.createBike(bike.toBikeRemote()).toBike()
+    }
+
+    override suspend fun updateBike(bike: Bike) {
+        service.updateBike(bike.uid, bike.toBikeRemote()).toBike()
+    }
+
+    override suspend fun deleteBike(bike: Bike) {
+        val cart = service.getUsers()
+        cart.forEach { userRemote ->
+            userRemote.items = userRemote.items.filter { x -> x.bikeId != bike.uid }
+            userRemote.id?.let { service.updateUserCart(it, userRemote) }
+        }
+        val rents = service.getRents()
+        rents.forEach { rentRemote ->
+            rentRemote.items = rentRemote.items.filter { x -> x.bikeId != bike.uid }
+            service.updateRent(rentRemote.id, rentRemote)
+        }
+        service.deleteBike(bike.uid)
+        dbBikeRepository.deleteBike(bike)
+    }
+}

app/src/main/java/com/example/myapplication/api/item/remote/BikeWithItemsRemote.kt

@@ -0,0 +1,57 @@
+package com.example.myapplication.api.item.remote
+
+/*
+@Serializable
+data class BikeWithItemsRemote(
+    val id: Int = 0,
+    val name: String = "",
+    val description: String = "",
+    val image: ByteArray? = null
+    @SerialName("items")
+    val items: List<ItemFromBikeRemote>,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as BikeWithItemsRemote
+
+        if (id != other.id) return false
+        if (name != other.name) return false
+        if (description != other.description) return false
+        if (image != null) {
+            if (other.image == null) return false
+            if (!image.contentEquals(other.image)) return false
+        } else if (other.image != null) return false
+        if (items != other.items) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = id
+        result = 31 * result + name.hashCode()
+        result = 31 * result + description.hashCode()
+        result = 31 * result + (image?.contentHashCode() ?: 0)
+        result = 31 * result + items.hashCode()
+        return result
+    }
+}
+
+fun BikeWithItemsRemote.toBikeWithItems(): BikeWithItems = BikeWithItems(
+    Bike(
+        id,
+        name,
+        description,
+        image
+    ),
+    items.map { x -> x.toItemFromBike() }
+)
+
+fun Bike.toBikeWithItemsRemote(): BikeWithItemsRemote = BikeWithItemsRemote(
+    uid,
+    name,
+    description,
+    image,
+    items = emptyList()
+)*/

app/src/main/java/com/example/myapplication/api/item/remote/ItemFromBikeRemote.kt

@@ -0,0 +1,39 @@
+package com.example.myapplication.api.item.remote
+
+import com.example.myapplication.database.room.model.item.ItemFromBike
+import kotlinx.serialization.Contextual
+import kotlinx.serialization.Serializable
+import org.threeten.bp.LocalDateTime
+
+@Serializable
+class ItemFromBikeRemote(
+    val id: Int = 0,
+    @Contextual
+    val dateTime: LocalDateTime = LocalDateTime.MIN,
+    val weight: Double = 0.0,
+    val radius: Double = 0.0,
+    val colorbike: String = "",
+    val maxCount: Int = 0,
+    val availableCount: Int = 0,
+    val bikeId: Int = 0,
+)
+
+fun ItemFromBikeRemote.toItemFromBike(): ItemFromBike = ItemFromBike(
+    id,
+    dateTime,
+    weight,
+    radius,
+    colorbike,
+    availableCount,
+    bikeId
+)
+
+fun ItemFromBike.toItemFromBikeRemote(): ItemFromBikeRemote = ItemFromBikeRemote(
+    uid,
+    dateTime,
+    weight,
+    radius,
+    colorbike,
+    availableCount,
+    bikeId
+)

app/src/main/java/com/example/myapplication/api/item/remote/ItemFromCartRemote.kt

@@ -0,0 +1,19 @@
+package com.example.myapplication.api.item.remote
+
+import com.example.myapplication.api.bike.remote.BikeRemote
+import com.example.myapplication.api.bike.remote.toBike
+import com.example.myapplication.database.room.model.item.ItemFromCart
+import kotlinx.serialization.Serializable
+import org.threeten.bp.LocalDateTime
+
+@Serializable
+class ItemFromCartRemote(
+    val id: Int = 0,
+    var count: Int = 0,
+    var bikeId: Int = 0,
+)
+
+fun ItemFromCartRemote.toItemFromCart(bike: BikeRemote, dateTime: LocalDateTime, weight: Double, radius: Double, colorbike : String, availableCount: Int): ItemFromCart =
+    ItemFromCart(
+        id, dateTime, weight, radius, colorbike, availableCount, count, bike.id, bike.toBike()
+    )

app/src/main/java/com/example/myapplication/api/item/remote/ItemFromRentRemote.kt

@@ -0,0 +1,24 @@
+package com.example.myapplication.api.item.remote
+
+import com.example.myapplication.api.bike.remote.BikeRemote
+import com.example.myapplication.api.bike.remote.toBike
+import com.example.myapplication.database.room.model.item.ItemFromRent
+import kotlinx.serialization.Contextual
+import kotlinx.serialization.Serializable
+import org.threeten.bp.LocalDateTime
+
+@Serializable
+class ItemFromRentRemote(
+    val id: Int = 0,
+    @Contextual val dateTime: LocalDateTime = LocalDateTime.MIN,
+    val frozenWeight: Double = 0.0,
+    val radius: Double = 0.0,
+    val colorbike: String = "",
+    val count: Int = 0,
+    val bikeId: Int = 0,
+)
+
+fun ItemFromRentRemote.toItemFromRent(bike: BikeRemote): ItemFromRent =
+    ItemFromRent(
+        id, dateTime, frozenWeight, radius,colorbike, count, bikeId, bike.toBike()
+    )

app/src/main/java/com/example/myapplication/api/item/remote/ItemRemote.kt

@@ -0,0 +1,38 @@
+package com.example.myapplication.api.item.remote
+
+import com.example.myapplication.database.room.model.item.Item
+import kotlinx.serialization.Contextual
+import kotlinx.serialization.Serializable
+import org.threeten.bp.LocalDateTime
+
+@Serializable
+data class ItemRemote(
+    val id: Int = 0,
+    @Contextual
+    val dateTime: LocalDateTime,
+    val weight: Double,
+    val radius: Double,
+    val colorbike: String,
+    val maxCount: Int,
+    val bikeId: Int = 0
+)
+
+fun ItemRemote.toItem(): Item = Item(
+    id,
+    dateTime,
+    weight,
+    radius,
+    colorbike,
+    maxCount,
+    bikeId
+)
+
+fun Item.toItemRemote(): ItemRemote = ItemRemote(
+    uid,
+    dateTime,
+    weight,
+    radius,
+    colorbike,
+    maxCount,
+    bikeId
+)

app/src/main/java/com/example/myapplication/api/item/remote/ItemWithBikeRemote.kt

@@ -0,0 +1,30 @@
+package com.example.myapplication.api.item.remote
+
+import com.example.myapplication.api.bike.remote.BikeRemote
+import com.example.myapplication.database.room.model.item.Item
+import kotlinx.serialization.Contextual
+import kotlinx.serialization.Serializable
+import org.threeten.bp.LocalDateTime
+
+@Serializable
+data class ItemWithBikeRemote(
+    val id: Int = 0,
+    @Contextual
+    val dateTime: LocalDateTime,
+    val weight: Double,
+    val radius: Double,
+    val colorbike: String,
+    val maxCount: Int,
+    val bikeId: Int = 0,
+    val bike: BikeRemote,
+)
+
+fun ItemWithBikeRemote.toItem(): Item = Item(
+    id,
+    dateTime,
+    weight,
+    radius,
+    colorbike,
+    maxCount,
+    bikeId
+)

app/src/main/java/com/example/myapplication/api/item/repository/RestItemRepository.kt

@@ -0,0 +1,163 @@
+package com.example.myapplication.api.item.repository
+
+import android.content.ContentResolver
+import android.content.ContentValues
+import android.content.Context
+import android.content.Intent
+import android.graphics.Canvas
+import android.graphics.Paint
+import android.graphics.pdf.PdfDocument
+import android.net.Uri
+import android.os.Environment
+import android.provider.MediaStore
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.item.remote.toItem
+import com.example.myapplication.api.item.remote.toItemRemote
+import com.example.myapplication.api.report.remote.ReportRemote
+import com.example.myapplication.database.room.model.item.Item
+import com.example.myapplication.database.room.repository.offline.OfflineItemRepository
+import com.example.myapplication.database.room.repository.offline.OfflineRentItemRepository
+import com.example.myapplication.database.room.repository.offline.OfflineUserItemRepository
+import com.example.myapplication.database.room.repository.online.ItemRepository
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import java.io.IOException
+import java.io.OutputStream
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+class RestItemRepository(
+    private val service: MyServerService,
+    private val dbItemRepository: OfflineItemRepository,
+    private val dbUserItemRepository: OfflineUserItemRepository,
+    private val dbRentItemRepository: OfflineRentItemRepository,
+) : ItemRepository {
+    override suspend fun getItem(uid: Int): Item {
+        return service.getItem(uid).toItem()
+    }
+
+    override suspend fun insertItem(item: Item) {
+        dbItemRepository.insertItem(
+            service.createItem(item.toItemRemote()).toItem()
+        )
+    }
+
+    override suspend fun updateItem(item: Item) {
+        dbItemRepository.updateItem(
+            service.updateItem(
+                item.uid,
+                item.toItemRemote()
+            ).toItem()
+        )
+    }
+
+    override suspend fun deleteItem(item: Item) {
+        val cart = service.getUsers()
+        cart.forEach { userRemote ->
+            userRemote.items = userRemote.items.filter { x -> x.id != item.uid }
+            userRemote.id?.let { service.updateUserCart(it, userRemote) }
+        }
+        val rents = service.getRents()
+        rents.forEach { rentRemote ->
+            rentRemote.items = rentRemote.items.filter { x -> x.id != item.uid }
+            service.updateRent(rentRemote.id, rentRemote)
+        }
+        service.deleteItem(item.uid)
+        dbUserItemRepository.deleteItemsByUid(item.uid)
+        dbRentItemRepository.deleteItemsByUid(item.uid)
+        dbItemRepository.deleteItem(item)
+    }
+    suspend fun getReport(fromDate: String, toDate: String):List<ReportRemote>
+    {
+        return service.getReportInfo(fromDate,toDate)
+    }
+
+
+    suspend fun createPdfFile(context: Context, fileName: String, reportData: List<ReportRemote>) {
+        withContext(Dispatchers.IO) {
+            val currentDate = SimpleDateFormat("dd.MM.yyyy", Locale.getDefault()).format(Date())
+            val contentValues = ContentValues().apply {
+                put(MediaStore.MediaColumns.DISPLAY_NAME, "$fileName от $currentDate")
+                put(MediaStore.MediaColumns.MIME_TYPE, "application/pdf")
+                put(MediaStore.MediaColumns.RELATIVE_PATH, Environment.DIRECTORY_DOCUMENTS)
+            }
+
+            val contentResolver: ContentResolver = context.contentResolver
+            val uri: Uri? = contentResolver.insert(MediaStore.Files.getContentUri("external"), contentValues)
+
+            uri?.let {
+                try {
+                    contentResolver.openOutputStream(uri)?.use { outputStream ->
+                        createPdfContent(outputStream, reportData)
+                    }
+
+                    // Optional: Notify MediaStore about the new file
+                    context.sendBroadcast(Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, uri))
+                } catch (e: IOException) {
+                    e.printStackTrace()
+                }
+            }
+        }
+    }
+
+    private fun createPdfContent(outputStream: OutputStream, reportData: List<ReportRemote>) {
+        val currentDate = SimpleDateFormat("dd.MM.yyyy", Locale.getDefault()).format(Date())
+        val pdfDocument = PdfDocument()
+
+        val pageInfo = PdfDocument.PageInfo.Builder(595, 842, 1).create()
+        val page = pdfDocument.startPage(pageInfo)
+        val canvas = page.canvas
+
+        val paint = Paint()
+        paint.textSize = 16f
+        paint.isAntiAlias = true
+
+        // Отображаем заголовок
+        val title = "Отчет от ${currentDate}"
+        val xTitle = (pageInfo.pageWidth - paint.measureText(title)) / 2
+        val yTitle = 40f
+        canvas.drawText(title, xTitle, yTitle, paint)
+
+
+        // Отображаем данные в виде таблицы
+        val tableStartY = yTitle + 60f
+        val columnWidths = floatArrayOf(0.5f, 1f, 0.6f, 0.5f, 1f, 1f, 1f)
+        val rowHeight = 30f
+
+        drawTableRow(canvas, arrayOf("ID", "Дата", "Вес", "R", "Цвет", "Кол-во", "Имя"), columnWidths, tableStartY, paint)
+
+        for ((index, report) in reportData.withIndex()) {
+            val row = arrayOf(
+                report.id.toString(),
+                report.dateTime.toString(),
+                report.weight.toString(),
+                report.radius.toString(),
+                report.colorbike.toString(),
+                report.maxCount.toString(),
+                report.bikeName.toString()
+            )
+            drawTableRow(canvas, row, columnWidths, tableStartY + (index + 1) * rowHeight, paint)
+        }
+
+        pdfDocument.finishPage(page)
+
+        pdfDocument.writeTo(outputStream)
+        pdfDocument.close()
+    }
+
+    private fun drawTableRow(
+        canvas: Canvas,
+        row: Array<String>,
+        columnWidths: FloatArray,
+        y: Float,
+        paint: Paint
+    ) {
+        var x = 40f
+        for (i in row.indices) {
+            val text = row[i]
+            canvas.drawText(text, x, y, paint)
+            x += columnWidths[i] * 80
+        }
+    }
+}

app/src/main/java/com/example/myapplication/api/rent/mediator/RentRemoteMediator.kt

@@ -0,0 +1,107 @@
+package com.example.myapplication.api.rent.mediator
+
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.LoadType
+import androidx.paging.PagingState
+import androidx.paging.RemoteMediator
+import androidx.room.withTransaction
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.rent.remote.toRent
+import com.example.myapplication.database.AppDatabase
+import com.example.myapplication.database.remotekeys.model.RemoteKeyType
+import com.example.myapplication.database.remotekeys.model.RemoteKeys
+import com.example.myapplication.database.remotekeys.repository.offline.OfflineRemoteKeyRepository
+import com.example.myapplication.database.room.model.rent.Rent
+import com.example.myapplication.database.room.repository.offline.OfflineRentRepository
+import retrofit2.HttpException
+import java.io.IOException
+
+@OptIn(ExperimentalPagingApi::class)
+class RentRemoteMediator(
+    private val service: MyServerService,
+    private val dbRentRepository: OfflineRentRepository,
+    private val dbRemoteKeyRepository: OfflineRemoteKeyRepository,
+    private val database: AppDatabase
+) : RemoteMediator<Int, Rent>() {
+
+    override suspend fun initialize(): InitializeAction {
+        return InitializeAction.LAUNCH_INITIAL_REFRESH
+    }
+
+    override suspend fun load(
+        loadType: LoadType,
+        state: PagingState<Int, Rent>
+    ): MediatorResult {
+        val page = when (loadType) {
+            LoadType.REFRESH -> {
+                val remoteKeys = getRemoteKeyClosestToCurrentPosition(state)
+                remoteKeys?.nextKey?.minus(1) ?: 1
+            }
+
+            LoadType.PREPEND -> {
+                val remoteKeys = getRemoteKeyForFirstItem(state)
+                remoteKeys?.prevKey
+                    ?: return MediatorResult.Success(endOfPaginationReached = remoteKeys != null)
+            }
+
+            LoadType.APPEND -> {
+                val remoteKeys = getRemoteKeyForLastItem(state)
+                remoteKeys?.nextKey
+                    ?: return MediatorResult.Success(endOfPaginationReached = remoteKeys != null)
+            }
+        }
+
+        try {
+            val rents = service.getRents(page, state.config.pageSize).map { it.toRent() }
+            val endOfPaginationReached = rents.isEmpty()
+            database.withTransaction {
+                if (loadType == LoadType.REFRESH) {
+                    dbRemoteKeyRepository.deleteRemoteKey(RemoteKeyType.ORDER)
+                    dbRentRepository.clearRents()
+                }
+                val prevKey = if (page == 1) null else page - 1
+                val nextKey = if (endOfPaginationReached) null else page + 1
+                val keys = rents.map {
+                    RemoteKeys(
+                        entityId = it.uid,
+                        type = RemoteKeyType.ORDER,
+                        prevKey = prevKey,
+                        nextKey = nextKey
+                    )
+                }
+                dbRemoteKeyRepository.createRemoteKeys(keys)
+                dbRentRepository.insertRents(rents)
+            }
+            return MediatorResult.Success(endOfPaginationReached = endOfPaginationReached)
+        } catch (exception: IOException) {
+            return MediatorResult.Error(exception)
+        } catch (exception: HttpException) {
+            return MediatorResult.Error(exception)
+        }
+    }
+
+    private suspend fun getRemoteKeyForLastItem(state: PagingState<Int, Rent>): RemoteKeys? {
+        return state.pages.lastOrNull { it.data.isNotEmpty() }?.data?.lastOrNull()
+            ?.let { rent ->
+                dbRemoteKeyRepository.getAllRemoteKeys(rent.uid, RemoteKeyType.ORDER)
+            }
+    }
+
+    private suspend fun getRemoteKeyForFirstItem(state: PagingState<Int, Rent>): RemoteKeys? {
+        return state.pages.firstOrNull { it.data.isNotEmpty() }?.data?.firstOrNull()
+            ?.let { rent ->
+                dbRemoteKeyRepository.getAllRemoteKeys(rent.uid, RemoteKeyType.ORDER)
+            }
+    }
+
+    private suspend fun getRemoteKeyClosestToCurrentPosition(
+        state: PagingState<Int, Rent>
+    ): RemoteKeys? {
+        return state.anchorPosition?.let { position ->
+            state.closestItemToPosition(position)?.uid?.let { rentUid ->
+                dbRemoteKeyRepository.getAllRemoteKeys(rentUid, RemoteKeyType.ORDER)
+            }
+        }
+    }
+
+}

app/src/main/java/com/example/myapplication/api/rent/remote/RentRemote.kt

@@ -0,0 +1,18 @@
+package com.example.myapplication.api.rent.remote
+
+import com.example.myapplication.api.item.remote.ItemFromRentRemote
+import com.example.myapplication.database.room.model.rent.Rent
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class RentRemote(
+    val id: Int = 0, val userId: Int = 0, var items: List<ItemFromRentRemote> = emptyList()
+)
+
+fun RentRemote.toRent(): Rent = Rent(
+    id, userId
+)
+
+fun Rent.toRentRemote(): RentRemote = RentRemote(
+    uid, userId!!, items = emptyList()
+)

app/src/main/java/com/example/myapplication/api/rent/rentitem/repository/RestRentItemRepository.kt

@@ -0,0 +1,42 @@
+package com.example.myapplication.api.rent.rentitem.repository
+
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.item.remote.ItemFromRentRemote
+import com.example.myapplication.api.item.remote.toItem
+import com.example.myapplication.database.room.model.rent.RentItemCrossRef
+import com.example.myapplication.database.room.repository.offline.OfflineRentItemRepository
+import com.example.myapplication.database.room.repository.online.RentItemRepository
+
+
+class RestRentItemRepository(
+    private val service: MyServerService,
+    private val dbRentItemRepository: OfflineRentItemRepository
+) : RentItemRepository {
+    override suspend fun insertRentItem(rentItemCrossRef: RentItemCrossRef) {
+        var rentRemote = service.getRent(rentItemCrossRef.rentId)
+        val item = service.getItem(rentItemCrossRef.itemId).toItem()
+
+        val itemFromRent = ItemFromRentRemote(
+            item.uid,
+            item.dateTime,
+            item.weight,
+            item.radius,
+            item.colorbike,
+            rentItemCrossRef.count,
+            item.bikeId
+        )
+
+        val updatedItems = rentRemote.items.toMutableList()
+        updatedItems.add(itemFromRent)
+
+        rentRemote = rentRemote.copy(items = updatedItems)
+        service.updateRent(rentItemCrossRef.rentId, rentRemote)
+        dbRentItemRepository.insertRentItem(rentItemCrossRef)
+    }
+
+    override suspend fun updateRentItem(rentItemCrossRef: RentItemCrossRef) {
+    }
+
+    override suspend fun deleteRentItem(rentItemCrossRef: RentItemCrossRef) {
+    }
+}

app/src/main/java/com/example/myapplication/api/rent/repository/RestRentRepository.kt

@@ -0,0 +1,82 @@
+package com.example.myapplication.api.rent.repository
+
+import android.util.Log
+import androidx.paging.ExperimentalPagingApi
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.bike.remote.toBikeRemote
+import com.example.myapplication.api.item.remote.toItemFromRent
+import com.example.myapplication.api.rent.mediator.RentRemoteMediator
+import com.example.myapplication.api.rent.remote.toRent
+import com.example.myapplication.api.rent.remote.toRentRemote
+import com.example.myapplication.database.room.repository.AppContainer
+import com.example.myapplication.database.AppDatabase
+import com.example.myapplication.database.remotekeys.repository.offline.OfflineRemoteKeyRepository
+import com.example.myapplication.database.room.model.item.ItemFromRent
+import com.example.myapplication.database.room.model.rent.Rent
+import com.example.myapplication.database.room.model.rent.RentItemCrossRef
+import com.example.myapplication.database.room.repository.offline.OfflineBikeRepository
+import com.example.myapplication.database.room.repository.offline.OfflineRentItemRepository
+import com.example.myapplication.database.room.repository.offline.OfflineRentRepository
+import com.example.myapplication.database.room.repository.online.RentRepository
+import kotlinx.coroutines.flow.Flow
+
+class RestRentRepository(
+    private val service: MyServerService,
+    private val dbRentRepository: OfflineRentRepository,
+    private val dbBikeRepository: OfflineBikeRepository,
+    private val dbRentItemRepository: OfflineRentItemRepository,
+    private val dbRemoteKeyRepository: OfflineRemoteKeyRepository,
+    private val database: AppDatabase
+) : RentRepository {
+    override fun getAllRents(userId: Int?): Flow<PagingData<Rent>> {
+        Log.d(RestRentRepository::class.simpleName, "Get rents")
+
+        val pagingSourceFactory = { dbRentRepository.getAllRentsPagingSource(userId) }
+
+        @OptIn(ExperimentalPagingApi::class)
+        return Pager(
+            config = PagingConfig(
+                pageSize = AppContainer.LIMIT,
+                enablePlaceholders = false
+            ),
+            remoteMediator = RentRemoteMediator(
+                service,
+                dbRentRepository,
+                dbRemoteKeyRepository,
+                database,
+            ),
+            pagingSourceFactory = pagingSourceFactory
+        ).flow
+    }
+
+    override suspend fun getRent(uid: Int): List<ItemFromRent> {
+        val rent = service.getRent(uid)
+
+        dbRentItemRepository.deleteRentItems(uid)
+        rent.items.map {
+            dbRentItemRepository.insertRentItem(
+                RentItemCrossRef(
+                    uid,
+                    it.id,
+                    it.frozenWeight,
+                    it.radius,
+                    it.colorbike,
+                    it.count
+                )
+            )
+        }
+        return rent.items.map { x -> x.toItemFromRent(dbBikeRepository.getBike(x.bikeId).bike.toBikeRemote()) }
+    }
+
+    override suspend fun insertRent(rent: Rent): Long {
+        return dbRentRepository.insertRent(service.createRent(rent.toRentRemote()).toRent())
+    }
+
+    override suspend fun deleteRent(rent: Rent) {
+        service.deleteRent(rent.uid)
+        dbRentRepository.deleteRent(rent)
+    }
+}

app/src/main/java/com/example/myapplication/api/report/remote/ReportRemote.kt

@@ -0,0 +1,14 @@
+package com.example.myapplication.api.report.remote
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ReportRemote(
+    val id: Int = 0,
+    val dateTime: Int = 0,
+    val weight: Double = 0.0,
+    val radius: Double = 0.0,
+    val colorbike: String = "",
+    val maxCount: Int = 0,
+    val bikeName: String = ""
+)

app/src/main/java/com/example/myapplication/api/user/remote/UserRemote.kt

@@ -0,0 +1,28 @@
+package com.example.myapplication.api.user.remote
+
+import com.example.myapplication.api.item.remote.ItemFromCartRemote
+import com.example.myapplication.database.room.model.user.User
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class UserRemote(
+    val id: Int? = 0,
+    val login: String = "",
+    val role: String = "",
+    val password: String = "",
+    var items: List<ItemFromCartRemote> = emptyList()
+)
+
+fun UserRemote.toUser(): User = User(
+    id,
+    login,
+    role,
+    password
+)
+
+fun User.toUserRemote(): UserRemote = UserRemote(
+    uid,
+    login,
+    role,
+    password
+)

app/src/main/java/com/example/myapplication/api/user/repository/RestUserRepository.kt

@@ -0,0 +1,78 @@
+package com.example.myapplication.api.user.repository
+
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.item.remote.toItemFromCart
+import com.example.myapplication.api.user.remote.toUser
+import com.example.myapplication.api.user.remote.toUserRemote
+import com.example.myapplication.database.room.model.item.ItemFromCart
+import com.example.myapplication.database.room.model.user.User
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+import com.example.myapplication.database.room.repository.offline.OfflineUserItemRepository
+import com.example.myapplication.database.room.repository.offline.OfflineUserRepository
+import com.example.myapplication.database.room.repository.online.UserRepository
+
+class RestUserRepository(
+    private val service: MyServerService,
+    private val dbUserRepository: OfflineUserRepository,
+    private val dbUserItemRepository: OfflineUserItemRepository,
+) : UserRepository {
+    override suspend fun getAllUsers(): List<User> {
+        val existUsers = dbUserRepository.getAllUsers().associateBy { it.uid }.toMutableMap()
+
+        service.getUsers()
+            .map { it.toUser() }
+            .forEach { user ->
+                val existUser = existUsers[user.uid]
+                if (existUser == null) {
+                    dbUserRepository.insertUser(user)
+                } else if (existUser != user) {
+                    dbUserRepository.updateUser(user)
+                }
+                existUsers[user.uid] = user
+            }
+
+        return existUsers.map { it.value }.sortedBy { it.uid }
+    }
+
+    override suspend fun getCartByUser(userId: Int): List<ItemFromCart> {
+        val cart = service.getUserCart(userId)
+        dbUserItemRepository.deleteUserItems(userId)
+        cart.items.map { itemFromCartRemote ->
+            dbUserItemRepository.insertUserItem(
+                UserItemCrossRef(
+                    userId,
+                    itemFromCartRemote.id,
+                    itemFromCartRemote.count
+                )
+            )
+        }
+
+        return cart.items.map {
+            val item = service.getItem(it.id)
+            it.toItemFromCart(
+                item.bike,
+                item.dateTime,
+                item.weight,
+                item.radius,
+                item.colorbike,
+                item.maxCount - service.getRents().flatMap { rent ->
+                    rent.items.filter { item -> item.id == it.id }
+                }.sumOf { item -> item.count })
+        }
+    }
+
+    override suspend fun insertUser(user: User) {
+        service.createUser(user.toUserRemote()).toUser()
+    }
+
+    override suspend fun updateUser(user: User) {
+        user.uid?.let { service.updateUser(it, user.toUserRemote()).toUser() }
+    }
+
+    override suspend fun deleteUser(user: User) {
+        user.uid?.let { service.deleteUser(it).toUser() }
+    }
+
+    override suspend fun getUserById(idUser: Int?): User? =
+        idUser?.let { service.getUser(it).toUser() }
+}

app/src/main/java/com/example/myapplication/api/useritem/repository/RestUserItemRepository.kt

@@ -0,0 +1,62 @@
+package com.example.myapplication.api.useritem.repository
+
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.item.remote.ItemFromCartRemote
+import com.example.myapplication.api.item.remote.toItem
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+import com.example.myapplication.database.room.repository.offline.OfflineUserItemRepository
+import com.example.myapplication.database.room.repository.online.UserItemRepository
+
+class RestUserItemRepository(
+    private val service: MyServerService,
+    private val dbUserItemRepository: OfflineUserItemRepository
+) : UserItemRepository {
+    override suspend fun insertUserItem(userItemCrossRef: UserItemCrossRef) {
+        var cartItems = service.getUserCart(userItemCrossRef.userId)
+        cartItems.items.forEach { item ->
+            if (item.id == userItemCrossRef.itemId)
+                return
+        }
+        val item = service.getItem(userItemCrossRef.itemId).toItem()
+
+        val itemFromCart = ItemFromCartRemote(
+            item.uid,
+            userItemCrossRef.count,
+            item.bikeId,
+        )
+
+        val updatedItems = cartItems.items.toMutableList()
+        updatedItems.add(itemFromCart)
+
+        cartItems = cartItems.copy(items = updatedItems)
+        service.updateUserCart(userItemCrossRef.userId, cartItems)
+        dbUserItemRepository.insertUserItem(userItemCrossRef)
+    }
+
+    override suspend fun updateUserItem(userItemCrossRef: UserItemCrossRef) {
+        val userRemote = service.getUserCart(userItemCrossRef.userId)
+        if (userItemCrossRef.count <= 0) {
+            userRemote.items =
+                userRemote.items.filter { x -> x.id != userItemCrossRef.itemId }
+        } else
+            userRemote.items.forEach {
+                if (it.id == userItemCrossRef.itemId) {
+                    it.count = userItemCrossRef.count
+                }
+            }
+        service.updateUserCart(userItemCrossRef.userId, userRemote)
+        dbUserItemRepository.updateUserItem(userItemCrossRef)
+    }
+
+    override suspend fun deleteUserItem(userItemCrossRef: UserItemCrossRef) {
+        updateUserItem(userItemCrossRef)
+        dbUserItemRepository.deleteUserItem(userItemCrossRef)
+    }
+
+    override suspend fun deleteUserItems(userId: Int) {
+        val userRemote = service.getUserCart(userId)
+        userRemote.items = emptyList()
+        service.updateUserCart(userId, userRemote)
+        dbUserItemRepository.deleteUserItems(userId)
+    }
+}

app/src/main/java/com/example/myapplication/database/AppDatabase.kt

@@ -0,0 +1,122 @@
+package com.example.myapplication.database
+
+import android.content.Context
+import android.graphics.Bitmap
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import androidx.room.TypeConverters
+import androidx.sqlite.db.SupportSQLiteDatabase
+import com.example.myapplication.database.remotekeys.dao.RemoteKeysDao
+import com.example.myapplication.database.remotekeys.model.RemoteKeys
+import com.example.myapplication.database.room.dao.bike.BikeDao
+import com.example.myapplication.database.room.dao.item.ItemDao
+import com.example.myapplication.database.room.dao.rent.RentDao
+import com.example.myapplication.database.room.dao.rent.RentItemCrossRefDao
+import com.example.myapplication.database.room.dao.user.UserDao
+import com.example.myapplication.database.room.dao.user.UserItemCrossRefDao
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.model.item.Item
+import com.example.myapplication.database.room.model.rent.Rent
+import com.example.myapplication.database.room.model.rent.RentItemCrossRef
+import com.example.myapplication.database.room.model.user.User
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+import com.example.myapplication.setting.LocalDateTimeConverter
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import java.io.ByteArrayOutputStream
+
+@Database(
+    entities = [
+        Bike::class,
+        Item::class,
+        Rent::class,
+        RentItemCrossRef::class,
+        User::class,
+        UserItemCrossRef::class,
+        RemoteKeys::class
+    ],
+    version = 1,
+    exportSchema = false
+)
+@TypeConverters(LocalDateTimeConverter::class)
+abstract class AppDatabase : RoomDatabase() {
+    abstract fun bikeDao(): BikeDao
+    abstract fun itemDao(): ItemDao
+    abstract fun rentDao(): RentDao
+    abstract fun rentItemCrossRefDao(): RentItemCrossRefDao
+    abstract fun userDao(): UserDao
+    abstract fun userItemCrossRefDao(): UserItemCrossRefDao
+    abstract fun remoteKeysDao(): RemoteKeysDao
+
+    companion object {
+        private const val DB_NAME: String = "pmy-db"
+
+        @Volatile
+        private var INSTANCE: AppDatabase? = null
+
+        private suspend fun populateDatabase() {
+            INSTANCE?.let { database ->
+                // Users
+                val userDao = database.userDao()
+                val user1 = User(1, "login", "admin", "password")
+                userDao.insert(user1)
+
+            }
+        }
+
+        fun getInstance(appContext: Context): AppDatabase {
+            return INSTANCE ?: synchronized(this) {
+                Room.databaseBuilder(
+                    appContext,
+                    AppDatabase::class.java,
+                    DB_NAME
+                )
+                    .addCallback(object : Callback() {
+                        override fun onCreate(db: SupportSQLiteDatabase) {
+                            super.onCreate(db)
+                            CoroutineScope(Dispatchers.IO).launch {
+                                populateDatabase()
+                            }
+                        }
+                    })
+                    .build()
+                    .also { INSTANCE = it }
+            }
+        }
+
+        private fun createColoredImage(color: Int): ByteArray {
+            val width = 100
+            val height = 100
+
+            val bmp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
+            bmp.eraseColor(color)
+
+            val stream = ByteArrayOutputStream()
+            bmp.compress(Bitmap.CompressFormat.PNG, 100, stream)
+
+            return stream.toByteArray()
+        }
+
+        private fun getRandomColorInt(): Int {
+            val red = (0..255).random()
+            val green = (0..255).random()
+            val blue = (0..255).random()
+            return (0xFF shl 24) or (red shl 16) or (green shl 8) or blue
+        }
+
+        private fun generateBikeName(index: Int): String {
+            val base = 'a'.code
+            val alphabetSize = 26
+            val sb = StringBuilder()
+            var remainder = index
+            do {
+                val letter = (remainder % alphabetSize + base).toChar()
+                sb.insert(0, letter)
+                remainder /= alphabetSize
+            } while (remainder > 0)
+            return sb.toString()
+        }
+    }
+}

app/src/main/java/com/example/myapplication/database/AppViewModelProvider.kt

@@ -0,0 +1,88 @@
+package com.example.myapplication.database
+
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.createSavedStateHandle
+import androidx.lifecycle.viewmodel.CreationExtras
+import androidx.lifecycle.viewmodel.initializer
+import androidx.lifecycle.viewmodel.viewModelFactory
+import com.example.myapplication.BikeApplication
+import com.example.myapplication.database.entities.composeui.BikeListViewModel
+import com.example.myapplication.database.entities.composeui.BikeViewModel
+import com.example.myapplication.database.entities.composeui.edit.BikeEditViewModel
+import com.example.myapplication.database.entities.composeui.edit.ItemEditViewModel
+import com.example.myapplication.database.room.viewmodel.cart.CartViewModel
+import com.example.myapplication.database.room.viewmodel.user.CurrentUserViewModel
+import com.example.myapplication.database.room.viewmodel.user.EntryUserViewModel
+import com.example.myapplication.database.room.viewmodel.item.ItemListViewModel
+import com.example.myapplication.database.room.viewmodel.user.RegisterUserViewModel
+import com.example.myapplication.database.room.viewmodel.rent.RentListViewModel
+import com.example.myapplication.database.room.viewmodel.rent.RentViewModel
+import com.example.myapplication.database.room.viewmodel.rent.ReportViewModel
+
+object AppViewModelProvider {
+    val Factory = viewModelFactory {
+        initializer {
+            CurrentUserViewModel(bikeApplication().container.userRestRepository)
+        }
+        initializer {
+            EntryUserViewModel(bikeApplication().container.userRestRepository)
+        }
+        initializer {
+            RegisterUserViewModel(bikeApplication().container.userRestRepository)
+        }
+        initializer {
+            BikeListViewModel(bikeApplication().container.bikeRestRepository)
+        }
+        initializer {
+            ReportViewModel(
+                bikeApplication().container.itemRestRepository,
+            )
+        }
+        initializer {
+            BikeEditViewModel(
+                this.createSavedStateHandle(),
+                bikeApplication().container.bikeRestRepository
+            )
+        }
+        initializer {
+            BikeViewModel(
+                this.createSavedStateHandle(),
+                bikeApplication().container.bikeRestRepository,
+            )
+        }
+        initializer {
+            ItemListViewModel(
+                bikeApplication().container.itemRestRepository,
+                bikeApplication().container.userItemRestRepository,
+            )
+        }
+        initializer {
+            ItemEditViewModel(
+                this.createSavedStateHandle(),
+                bikeApplication().container.itemRestRepository,
+            )
+        }
+        initializer {
+            CartViewModel(
+                bikeApplication().container.userItemRestRepository,
+                bikeApplication().container.rentRestRepository,
+                bikeApplication().container.rentItemRestRepository,
+                bikeApplication().container.userRestRepository,
+            )
+        }
+        initializer {
+            RentListViewModel(
+                bikeApplication().container.rentRestRepository,
+            )
+        }
+        initializer {
+            RentViewModel(
+                this.createSavedStateHandle(),
+                bikeApplication().container.rentRestRepository,
+            )
+        }
+    }
+}
+
+fun CreationExtras.bikeApplication(): BikeApplication =
+    (this[ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY] as BikeApplication)

app/src/main/java/com/example/myapplication/database/entities/composeui/edit/BikeEdit.kt

@@ -0,0 +1,120 @@
+package com.example.myapplication.database.entities.composeui.edit
+
+import android.content.res.Configuration
+import android.graphics.BitmapFactory
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Button
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import com.example.myapplication.R
+import com.example.myapplication.database.AppViewModelProvider
+import com.example.myapplication.setting.ImageUploader
+import com.example.myapplication.ui.theme.PmudemoTheme
+import kotlinx.coroutines.launch
+
+@Composable
+fun BikeEdit(
+    navController: NavController,
+    viewModel: BikeEditViewModel = viewModel(factory = AppViewModelProvider.Factory),
+) {
+    val coroutineScope = rememberCoroutineScope()
+
+    BikeEdit(
+        bikeUiState = viewModel.bikeUiState,
+        onClick = {
+            coroutineScope.launch {
+                viewModel.saveBike()
+                navController.popBackStack()
+            }
+        },
+        onUpdate = viewModel::updateUiState,
+    )
+}
+
+@Composable
+private fun BikeEdit(
+    bikeUiState: BikeUiState,
+    onClick: () -> Unit,
+    onUpdate: (BikeDetails) -> Unit,
+) {
+    Column(
+        Modifier
+            .fillMaxWidth()
+            .padding(all = 10.dp)
+    ) {
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = bikeUiState.bikeDetails.name,
+            onValueChange = { onUpdate(bikeUiState.bikeDetails.copy(name = it)) },
+            label = { Text(stringResource(id = R.string.Bike_name)) },
+            singleLine = true,
+            textStyle = MaterialTheme.typography.bodyLarge.copy(
+                color = MaterialTheme.colorScheme.onSecondary
+            )
+
+        )
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = bikeUiState.bikeDetails.description,
+            onValueChange = { onUpdate(bikeUiState.bikeDetails.copy(description = it)) },
+            label = { Text(stringResource(id = R.string.Bike_description)) },
+            singleLine = true,
+            textStyle = MaterialTheme.typography.bodyLarge.copy(
+                color = MaterialTheme.colorScheme.onSecondary
+            )
+        )
+        if (bikeUiState.bikeDetails.image != null)
+            ImageUploader(
+                bitmap = BitmapFactory.decodeByteArray(
+                    bikeUiState.bikeDetails.image,
+                    0,
+                    bikeUiState.bikeDetails.image.size
+                ),
+                onResult = { byteArray: ByteArray? ->
+                    onUpdate(
+                        bikeUiState.bikeDetails.copy(
+                            image = byteArray
+                        )
+                    )
+                }
+            )
+        Button(
+            onClick = onClick,
+            enabled = bikeUiState.isEntryValid,
+            shape = MaterialTheme.shapes.small,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(text = stringResource(R.string.Save_button))
+        }
+    }
+}
+
+
+@Preview(name = "Light Mode", showBackground = true, uiMode = Configuration.UI_MODE_NIGHT_NO)
+@Preview(name = "Dark Mode", showBackground = true, uiMode = Configuration.UI_MODE_NIGHT_YES)
+@Composable
+fun BikeEditPreview() {
+    PmudemoTheme {
+        Surface(
+            color = MaterialTheme.colorScheme.background
+        ) {
+            BikeEdit(
+                bikeUiState = BikeUiState(),
+                onClick = {},
+                onUpdate = {},
+            )
+        }
+    }
+}

app/src/main/java/com/example/myapplication/database/entities/composeui/edit/BikeEditViewModel.kt

@@ -0,0 +1,92 @@
+package com.example.myapplication.database.entities.composeui.edit
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.model.bike.BikeWithItems
+import com.example.myapplication.database.room.model.item.ItemFromBike
+import com.example.myapplication.database.room.repository.online.BikeRepository
+import kotlinx.coroutines.launch
+
+class BikeEditViewModel(
+    savedStateHandle: SavedStateHandle,
+    private val bikeRepository: BikeRepository
+) : ViewModel() {
+    var bikeUiState by mutableStateOf(BikeUiState())
+        private set
+
+    private val bikeUid: Int = checkNotNull(savedStateHandle["id"])
+
+    init {
+        viewModelScope.launch {
+            if (bikeUid > 0) {
+                bikeUiState = bikeRepository.getBike(bikeUid)
+                    .toUiState(true)
+            }
+        }
+    }
+
+    fun updateUiState(bikeDetails: BikeDetails) {
+        bikeUiState = BikeUiState(
+            bikeDetails = bikeDetails,
+            isEntryValid = validateInput(bikeDetails)
+        )
+    }
+
+    suspend fun saveBike() {
+        if (validateInput()) {
+            if (bikeUid > 0) {
+                bikeRepository.updateBike(bikeUiState.bikeDetails.toBike(bikeUid))
+            } else {
+                bikeRepository.insertBike(bikeUiState.bikeDetails.toBike())
+            }
+        }
+    }
+
+    private fun validateInput(uiState: BikeDetails = bikeUiState.bikeDetails): Boolean {
+        return with(uiState) {
+            name.isNotBlank()
+                    && description.isNotBlank()
+        }
+    }
+}
+
+data class BikeUiState(
+    val bikeDetails: BikeDetails = BikeDetails(),
+    val isEntryValid: Boolean = false
+)
+
+data class BikeDetails(
+    val name: String = "",
+    val description: String = "",
+    val image: ByteArray? = byteArrayOf(),
+    val items: List<ItemFromBike> = emptyList()
+)
+
+fun BikeDetails.toBike(uid: Int = 0): Bike = Bike(
+    uid = uid,
+    name = name,
+    description = description,
+    image = image
+)
+
+fun BikeWithItems.toDetails(): BikeDetails {
+    val bike = this.bike
+    val items = this.items
+
+    return BikeDetails(
+        name = bike.name,
+        description = bike.description,
+        image = bike.image,
+        items = items
+    )
+}
+
+fun BikeWithItems.toUiState(isEntryValid: Boolean = false): BikeUiState = BikeUiState(
+    bikeDetails = this.toDetails(),
+    isEntryValid = isEntryValid
+)

app/src/main/java/com/example/myapplication/database/remotekeys/dao/RemoteKeysDao.kt

@@ -0,0 +1,20 @@
+package com.example.myapplication.database.remotekeys.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.example.myapplication.database.remotekeys.model.RemoteKeyType
+import com.example.myapplication.database.remotekeys.model.RemoteKeys
+
+@Dao
+interface RemoteKeysDao {
+    @Query("SELECT * FROM remote_keys WHERE entityId = :entityId AND type = :type")
+    suspend fun getRemoteKeys(entityId: Int, type: RemoteKeyType): RemoteKeys?
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertAll(remoteKey: List<RemoteKeys>)
+
+    @Query("DELETE FROM remote_keys WHERE type = :type")
+    suspend fun clearRemoteKeys(type: RemoteKeyType)
+}

app/src/main/java/com/example/myapplication/database/remotekeys/model/RemoteKeys.kt

@@ -0,0 +1,30 @@
+package com.example.myapplication.database.remotekeys.model
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import androidx.room.TypeConverter
+import androidx.room.TypeConverters
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.model.item.Item
+import com.example.myapplication.database.room.model.rent.Rent
+
+enum class RemoteKeyType(private val type: String) {
+    CINEMA(Bike::class.simpleName ?: "Bike"),
+    ORDER(Rent::class.simpleName ?: "Rent"),
+    SESSION(Item::class.simpleName ?: "Item");
+
+    @TypeConverter
+    fun toRemoteKeyType(value: String) = RemoteKeyType.values().first { it.type == value }
+
+    @TypeConverter
+    fun fromRemoteKeyType(value: RemoteKeyType) = value.type
+}
+
+@Entity(tableName = "remote_keys")
+data class RemoteKeys(
+    @PrimaryKey val entityId: Int,
+    @TypeConverters(RemoteKeyType::class)
+    val type: RemoteKeyType,
+    val prevKey: Int?,
+    val nextKey: Int?
+)

app/src/main/java/com/example/myapplication/database/remotekeys/repository/RemoteKeyRepository.kt

@@ -0,0 +1,10 @@
+package com.example.myapplication.database.remotekeys.repository
+
+import com.example.myapplication.database.remotekeys.model.RemoteKeyType
+import com.example.myapplication.database.remotekeys.model.RemoteKeys
+
+interface RemoteKeyRepository {
+    suspend fun getAllRemoteKeys(id: Int, type: RemoteKeyType): RemoteKeys?
+    suspend fun createRemoteKeys(remoteKeys: List<RemoteKeys>)
+    suspend fun deleteRemoteKey(type: RemoteKeyType)
+}

app/src/main/java/com/example/myapplication/database/remotekeys/repository/offline/OfflineRemoteKeyRepository.kt

@@ -0,0 +1,17 @@
+package com.example.myapplication.database.remotekeys.repository.offline
+
+import com.example.myapplication.database.remotekeys.dao.RemoteKeysDao
+import com.example.myapplication.database.remotekeys.model.RemoteKeyType
+import com.example.myapplication.database.remotekeys.model.RemoteKeys
+import com.example.myapplication.database.remotekeys.repository.RemoteKeyRepository
+
+class OfflineRemoteKeyRepository(private val remoteKeysDao: RemoteKeysDao) : RemoteKeyRepository {
+    override suspend fun getAllRemoteKeys(id: Int, type: RemoteKeyType) =
+        remoteKeysDao.getRemoteKeys(id, type)
+
+    override suspend fun createRemoteKeys(remoteKeys: List<RemoteKeys>) =
+        remoteKeysDao.insertAll(remoteKeys)
+
+    override suspend fun deleteRemoteKey(type: RemoteKeyType) =
+        remoteKeysDao.clearRemoteKeys(type)
+}

app/src/main/java/com/example/myapplication/database/room/dao/bike/BikeDao.kt

@@ -0,0 +1,39 @@
+package com.example.myapplication.database.room.dao.bike
+
+import androidx.paging.PagingSource
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Update
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.model.item.ItemFromBike
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface BikeDao {
+    @Query("select * from bikes order by name")
+    fun getAll(): PagingSource<Int, Bike>
+
+    @Query(
+        "SELECT c.*, s.uid as item_uid, s.date_time, s.weight, s.radius,s.colorbike, s.max_count-IFNULL(SUM(os.count), 0) as available_count, c.uid as bike_id " +
+                "FROM bikes AS c " +
+                "LEFT JOIN items AS s ON s.bike_id = c.uid " +
+                "LEFT JOIN rents_items AS os ON os.item_id = s.uid " +
+                "WHERE c.uid = :bikeId " +
+                "GROUP BY item_uid"
+    )
+    fun getByUid(bikeId: Int?): Flow<Map<Bike, List<ItemFromBike>>>
+
+    @Insert
+    suspend fun insert(vararg bike: Bike)
+
+    @Update
+    suspend fun update(bike: Bike)
+
+    @Delete
+    suspend fun delete(bike: Bike)
+
+    @Query("DELETE FROM bikes")
+    suspend fun deleteAll()
+}

app/src/main/java/com/example/myapplication/database/room/dao/item/ItemDao.kt

@@ -0,0 +1,35 @@
+package com.example.myapplication.database.room.dao.item
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Update
+import com.example.myapplication.database.room.model.item.Item
+
+@Dao
+interface ItemDao {
+    @Query("select * from items where items.uid = :uid")
+    suspend fun getByUid(uid: Int): Item
+
+    @Insert
+    suspend fun insert(vararg item: Item)
+
+    @Update
+    suspend fun update(item: Item)
+
+    @Delete
+    suspend fun delete(item: Item)
+
+    @Query("DELETE FROM items")
+    suspend fun deleteAll()
+
+    @Query(
+        "SELECT s.max_count-IFNULL(SUM(os.count), 0) as available_count " +
+                "FROM items AS s " +
+                "LEFT JOIN rents_items AS os ON os.item_id = s.uid " +
+                "WHERE s.uid = :itemId " +
+                "GROUP BY s.uid"
+    )
+    suspend fun getAvailableCountOfItem(itemId: Int): Int
+}

app/src/main/java/com/example/myapplication/database/room/dao/rent/RentDao.kt

@@ -0,0 +1,37 @@
+package com.example.myapplication.database.room.dao.rent
+
+import androidx.paging.PagingSource
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Update
+import com.example.myapplication.database.room.model.item.ItemFromRent
+import com.example.myapplication.database.room.model.rent.Rent
+
+@Dao
+interface RentDao {
+    @Query("select * from rents where user_id = :userId")
+    fun getAll(userId: Int?): PagingSource<Int, Rent>
+
+    @Query(
+        "SELECT o.*, s.*, os.count, os.frozen_weight, os.radius, os.colorbike  " +
+                "FROM rents AS o " +
+                "JOIN rents_items AS os ON os.rent_id = o.uid " +
+                "JOIN items AS s ON s.uid = os.item_id " +
+                "WHERE o.uid = :rentId"
+    )
+    fun getByUid(rentId: Int?): List<ItemFromRent>
+
+    @Insert
+    suspend fun insert(vararg rent: Rent): List<Long>
+
+    @Update
+    suspend fun update(rent: Rent)
+
+    @Delete
+    suspend fun delete(rent: Rent)
+
+    @Query("DELETE FROM rents")
+    suspend fun deleteAll()
+}

app/src/main/java/com/example/myapplication/database/room/dao/rent/RentItemCrossRefDao.kt

@@ -0,0 +1,27 @@
+package com.example.myapplication.database.room.dao.rent
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.example.myapplication.database.room.model.rent.RentItemCrossRef
+
+@Dao
+interface RentItemCrossRefDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(rentItemCrossRef: RentItemCrossRef)
+
+    @Update
+    suspend fun update(rentItemCrossRef: RentItemCrossRef)
+
+    @Delete
+    suspend fun delete(rentItemCrossRef: RentItemCrossRef)
+
+    @Query("DELETE FROM rents_items where rents_items.rent_id = :rentId")
+    suspend fun deleteByRentUid(rentId: Int)
+
+    @Query("DELETE FROM rents_items where rents_items.item_id = :itemId")
+    suspend fun deleteByItemUid(itemId: Int)
+}

app/src/main/java/com/example/myapplication/database/room/dao/user/UserDao.kt

@@ -0,0 +1,42 @@
+package com.example.myapplication.database.room.dao.user
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.example.myapplication.database.room.model.item.ItemFromCart
+import com.example.myapplication.database.room.model.user.User
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface UserDao {
+    @Query("select * from users")
+    suspend fun getAll(): List<User>
+
+    @Query("select * from users where users.uid = :idUser")
+    fun getUserById(idUser: Int?): Flow<User>
+
+    @Query(
+        "SELECT items.*, items.max_count-IFNULL(SUM(rents_items.count), 0) as available_count, " +
+                "users_items.count FROM items " +
+                "join users_items on items.uid = users_items.item_id " +
+                "left join rents_items on items.uid = rents_items.item_id " +
+                "where users_items.user_id = :userId " +
+                "GROUP BY users_items.item_id "
+    )
+    suspend fun getCartByUid(userId: Int): List<ItemFromCart>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(vararg user: User)
+
+    @Update
+    suspend fun update(user: User)
+
+    @Delete
+    suspend fun delete(user: User)
+
+    @Query("DELETE FROM users")
+    suspend fun deleteAll()
+}

app/src/main/java/com/example/myapplication/database/room/dao/user/UserItemCrossRefDao.kt

@@ -0,0 +1,27 @@
+package com.example.myapplication.database.room.dao.user
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Update
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+
+@Dao
+interface UserItemCrossRefDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(userItemCrossRef: UserItemCrossRef)
+
+    @Update
+    suspend fun update(userItemCrossRef: UserItemCrossRef)
+
+    @Delete
+    suspend fun delete(userItemCrossRef: UserItemCrossRef)
+
+    @Query("DELETE FROM users_items where users_items.user_id = :userId")
+    suspend fun deleteByUserUid(userId: Int)
+
+    @Query("DELETE FROM users_items where users_items.item_id = :itemId")
+    suspend fun deleteByItemUid(itemId: Int)
+}

app/src/main/java/com/example/myapplication/database/room/model/bike/Bike.kt

@@ -0,0 +1,52 @@
+package com.example.myapplication.database.room.model.bike
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.Ignore
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "bikes")
+data class Bike(
+    @PrimaryKey(autoGenerate = true)
+    val uid: Int = 0,
+    val name: String,
+    val description: String,
+    @ColumnInfo(typeAffinity = ColumnInfo.BLOB)
+    val image: ByteArray?
+) {
+    @Ignore
+    constructor(
+        name: String,
+        description: String,
+        image: ByteArray?
+    ) : this(0, name, description, image)
+
+    companion object {
+        fun getBike(index: Int = 0): Bike {
+            return Bike(
+                index,
+                "name",
+                "desc",
+                byteArrayOf()
+            )
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Bike
+        if (uid != other.uid) return false
+        if (name != other.name) return false
+        if (description != other.description) return false
+        return image.contentEquals(other.image)
+    }
+
+    override fun hashCode(): Int {
+        var result = uid
+        result = 31 * result + name.hashCode()
+        result = 31 * result + description.hashCode()
+        return result
+    }
+}
+

app/src/main/java/com/example/myapplication/database/room/model/bike/BikeWithItems.kt

@@ -0,0 +1,26 @@
+package com.example.myapplication.database.room.model.bike
+
+import com.example.myapplication.database.room.model.item.ItemFromBike
+
+data class BikeWithItems(
+    val bike: Bike,
+    val items: List<ItemFromBike>
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as BikeWithItems
+
+        if (bike != other.bike) return false
+        if (items != other.items) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = bike.hashCode()
+        result = 31 * result + items.hashCode()
+        return result
+    }
+}

app/src/main/java/com/example/myapplication/database/room/model/item/Item.kt

@@ -0,0 +1,84 @@
+package com.example.myapplication.database.room.model.item
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.Ignore
+import androidx.room.PrimaryKey
+import com.example.myapplication.database.room.model.bike.Bike
+import org.threeten.bp.LocalDateTime
+
+@Entity(
+    tableName = "items", foreignKeys = [
+        ForeignKey(
+            entity = Bike::class,
+            parentColumns = ["uid"],
+            childColumns = ["bike_id"],
+            onDelete = ForeignKey.CASCADE,
+            onUpdate = ForeignKey.RESTRICT
+        )
+    ]
+)
+data class Item(
+    @PrimaryKey(autoGenerate = true)
+    val uid: Int = 0,
+    @ColumnInfo(name = "date_time")
+    val dateTime: LocalDateTime,
+    val weight: Double,
+    val radius: Double,
+    val colorbike: String,
+    @ColumnInfo(name = "max_count")
+    val maxCount: Int,
+    @ColumnInfo(name = "bike_id", index = true)
+    val bikeId: Int = 0,
+) {
+    @Ignore
+    constructor(
+        dateTime: LocalDateTime,
+        weight: Double,
+        radius: Double,
+        colorbike: String,
+        maxCount: Int,
+        bike: Bike,
+    ) : this(0, dateTime, weight,radius,colorbike, maxCount, bike.uid)
+
+    companion object {
+        fun getItem(index: Int = 0): Item {
+            return Item(
+                index,
+                LocalDateTime.MIN,
+                0.0,
+                0.0,
+                "",
+                0,
+                0
+            )
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Item
+        if (uid != other.uid) return false
+        if (dateTime != other.dateTime) return false
+        if (weight != other.weight) return false
+        if (radius != other.radius) return false
+        if (colorbike != other.colorbike) return false
+        if (maxCount != other.maxCount) return false
+        if (bikeId != other.bikeId) return false
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = uid
+        result = 31 * result + dateTime.hashCode()
+        result = 31 * result + weight.hashCode()
+        result = 31 * result + radius.hashCode()
+        result = 31 * result + colorbike.hashCode()
+        result = 31 * result + maxCount.hashCode()
+        result = 31 * result + bikeId.hashCode()
+        return result
+    }
+}
+

app/src/main/java/com/example/myapplication/database/room/model/item/ItemFromBike.kt

@@ -0,0 +1,55 @@
+package com.example.myapplication.database.room.model.item
+
+import androidx.room.ColumnInfo
+import org.threeten.bp.LocalDateTime
+import org.threeten.bp.format.DateTimeFormatter
+
+data class ItemFromBike(
+    @ColumnInfo(name = "item_uid")
+    val uid: Int,
+    @ColumnInfo(name = "date_time")
+    val dateTime: LocalDateTime,
+    val weight: Double,
+    val radius: Double,
+    val colorbike: String,
+    @ColumnInfo(name = "available_count")
+    var availableCount: Int,
+    @ColumnInfo(name = "bike_id")
+    val bikeId: Int,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as ItemFromBike
+        if (uid != other.uid) return false
+        val dateFormatter = DateTimeFormatter.ofPattern("yyyy")
+        if (dateFormatter.format(dateTime) != dateFormatter.format(other.dateTime)) return false
+        if (weight != other.weight) return false
+        if (radius != other.radius) return false
+        if (colorbike != other.colorbike) return false
+        if (availableCount != other.availableCount) return false
+        if (bikeId != other.bikeId) return false
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = uid
+        result = 31 * result + dateTime.hashCode()
+        result = 31 * result + weight.hashCode()
+        result = 31 * result + radius.hashCode()
+        result = 31 * result + colorbike.hashCode()
+        result = 31 * result + availableCount.hashCode()
+        result = 31 * result + bikeId.hashCode()
+        return result
+    }
+}
+
+fun ItemFromBike.toItem(): Item = Item (
+    uid,
+    dateTime,
+    weight,
+    radius,
+    colorbike,
+    availableCount,
+    bikeId
+)

app/src/main/java/com/example/myapplication/database/room/model/item/ItemFromCart.kt

@@ -0,0 +1,26 @@
+package com.example.myapplication.database.room.model.item
+
+import androidx.room.ColumnInfo
+import androidx.room.Relation
+import com.example.myapplication.database.room.model.bike.Bike
+import org.threeten.bp.LocalDateTime
+
+data class ItemFromCart(
+    @ColumnInfo(name = "uid")
+    val uid: Int = 0,
+    @ColumnInfo(name = "date_time")
+    val dateTime: LocalDateTime,
+    val weight: Double,
+    val radius: Double,
+    val colorbike: String,
+    @ColumnInfo(name = "available_count")
+    val availableCount: Int,
+    val count: Int,
+    @ColumnInfo(name = "bike_id")
+    val bikeId: Int = 0,
+    @Relation(
+        parentColumn = "bike_id",
+        entity = Bike::class,
+        entityColumn = "uid"
+    ) val bike: Bike
+)

app/src/main/java/com/example/myapplication/database/room/model/item/ItemFromRent.kt

@@ -0,0 +1,26 @@
+package com.example.myapplication.database.room.model.item
+
+import androidx.room.ColumnInfo
+import androidx.room.Relation
+import com.example.myapplication.database.room.model.bike.Bike
+import org.threeten.bp.LocalDateTime
+
+data class ItemFromRent(
+    @ColumnInfo(name = "uid")
+    val uid: Int = 0,
+    @ColumnInfo(name = "date_time")
+    val dateTime: LocalDateTime,
+    @ColumnInfo(name = "frozen_weight")
+    val frozenWeight: Double,
+    val radius: Double,
+    val colorbike: String,
+    val count: Int,
+    @ColumnInfo(name = "bike_id")
+    val bikeId: Int = 0,
+    @Relation(
+        parentColumn = "bike_id",
+        entity = Bike::class,
+        entityColumn = "uid"
+    )
+    val bike: Bike
+)

app/src/main/java/com/example/myapplication/database/room/model/rent/Rent.kt

@@ -0,0 +1,38 @@
+package com.example.myapplication.database.room.model.rent
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.PrimaryKey
+import com.example.myapplication.database.room.model.user.User
+
+@Entity(
+    tableName = "rents", foreignKeys = [
+        ForeignKey(
+            entity = User::class,
+            parentColumns = ["uid"],
+            childColumns = ["user_id"],
+            onDelete = ForeignKey.RESTRICT,
+            onUpdate = ForeignKey.RESTRICT
+        )
+    ]
+)
+data class Rent(
+    @PrimaryKey(autoGenerate = true)
+    val uid: Int,
+    @ColumnInfo(name = "user_id", index = true)
+    val userId: Int?,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as Rent
+        if (uid != other.uid) return false
+        return true
+    }
+
+    override fun hashCode(): Int {
+        return uid
+    }
+}
+

app/src/main/java/com/example/myapplication/database/room/model/rent/RentItemCrossRef.kt

@@ -0,0 +1,39 @@
+package com.example.myapplication.database.room.model.rent
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import java.util.Objects
+
+@Entity(
+    tableName = "rents_items",
+    primaryKeys = ["rent_id", "item_id"]
+)
+data class RentItemCrossRef(
+    @ColumnInfo(name = "rent_id", index = true)
+    val rentId: Int,
+    @ColumnInfo(name = "item_id", index = true)
+    val itemId: Int,
+    @ColumnInfo(name = "frozen_weight")
+    val frozenWeight: Double,
+    val radius: Double,
+    val colorbike: String,
+    val count: Int
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) {
+            return true
+        }
+        if (javaClass != other?.javaClass) {
+            return false
+        }
+        other as RentItemCrossRef
+        if (rentId == other.rentId && itemId == other.itemId) {
+            return true
+        }
+        return false
+    }
+
+    override fun hashCode(): Int {
+        return Objects.hash(rentId, itemId)
+    }
+}

app/src/main/java/com/example/myapplication/database/room/model/user/User.kt

@@ -0,0 +1,25 @@
+package com.example.myapplication.database.room.model.user
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "users")
+data class User(
+    @PrimaryKey(autoGenerate = true)
+    val uid: Int? = 0,
+    val login: String,
+    val role: String,
+    val password: String
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+        other as User
+        if (uid != other.uid) return false
+        return true
+    }
+
+    override fun hashCode(): Int {
+        return uid ?: -1
+    }
+}

app/src/main/java/com/example/myapplication/database/room/model/user/UserItemCrossRef.kt

@@ -0,0 +1,36 @@
+package com.example.myapplication.database.room.model.user
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import java.util.Objects.hash
+
+@Entity(
+    tableName = "users_items",
+    primaryKeys = ["user_id", "item_id"]
+)
+data class UserItemCrossRef(
+    @ColumnInfo(name = "user_id", index = true)
+    val userId: Int,
+    @ColumnInfo(name = "item_id", index = true)
+    val itemId: Int,
+    @ColumnInfo(name = "count")
+    val count: Int,
+) {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) {
+            return true
+        }
+        if (javaClass != other?.javaClass) {
+            return false
+        }
+        other as UserItemCrossRef
+        if (userId == other.userId && itemId == other.itemId) {
+            return true
+        }
+        return false
+    }
+
+    override fun hashCode(): Int {
+        return hash(userId, itemId)
+    }
+}

app/src/main/java/com/example/myapplication/database/room/repository/AppContainer.kt

@@ -0,0 +1,102 @@
+package com.example.myapplication.database.room.repository
+
+import android.content.Context
+import com.example.myapplication.api.MyServerService
+import com.example.myapplication.api.bike.repository.RestBikeRepository
+import com.example.myapplication.api.rent.repository.RestRentRepository
+import com.example.myapplication.api.rent.rentitem.repository.RestRentItemRepository
+import com.example.myapplication.api.item.repository.RestItemRepository
+import com.example.myapplication.api.user.repository.RestUserRepository
+import com.example.myapplication.api.useritem.repository.RestUserItemRepository
+import com.example.myapplication.database.AppDatabase
+import com.example.myapplication.database.remotekeys.repository.offline.OfflineRemoteKeyRepository
+import com.example.myapplication.database.room.repository.offline.OfflineBikeRepository
+import com.example.myapplication.database.room.repository.offline.OfflineItemRepository
+import com.example.myapplication.database.room.repository.offline.OfflineRentItemRepository
+import com.example.myapplication.database.room.repository.offline.OfflineRentRepository
+import com.example.myapplication.database.room.repository.offline.OfflineUserItemRepository
+import com.example.myapplication.database.room.repository.offline.OfflineUserRepository
+
+interface AppContainer {
+    val bikeRestRepository: RestBikeRepository
+    val itemRestRepository: RestItemRepository
+    val userRestRepository: RestUserRepository
+    val rentRestRepository: RestRentRepository
+    val rentItemRestRepository: RestRentItemRepository
+    val userItemRestRepository: RestUserItemRepository
+
+    companion object {
+        const val TIMEOUT = 5000L
+        const val LIMIT = 10
+    }
+}
+
+class AppDataContainer(private val context: Context) : AppContainer {
+    private val bikeRepository: OfflineBikeRepository by lazy {
+        OfflineBikeRepository(AppDatabase.getInstance(context).bikeDao())
+    }
+    private val rentRepository: OfflineRentRepository by lazy {
+        OfflineRentRepository(AppDatabase.getInstance(context).rentDao())
+    }
+    private val rentItemRepository: OfflineRentItemRepository by lazy {
+        OfflineRentItemRepository(AppDatabase.getInstance(context).rentItemCrossRefDao())
+    }
+    private val itemRepository: OfflineItemRepository by lazy {
+        OfflineItemRepository(AppDatabase.getInstance(context).itemDao())
+    }
+    private val userRepository: OfflineUserRepository by lazy {
+        OfflineUserRepository(AppDatabase.getInstance(context).userDao())
+    }
+    private val userItemRepository: OfflineUserItemRepository by lazy {
+        OfflineUserItemRepository(AppDatabase.getInstance(context).userItemCrossRefDao())
+    }
+    private val remoteKeyRepository: OfflineRemoteKeyRepository by lazy {
+        OfflineRemoteKeyRepository(AppDatabase.getInstance(context).remoteKeysDao())
+    }
+    override val bikeRestRepository: RestBikeRepository by lazy {
+        RestBikeRepository(
+            MyServerService.getInstance(),
+            bikeRepository,
+            itemRepository,
+            remoteKeyRepository,
+            AppDatabase.getInstance(context)
+        )
+    }
+    override val itemRestRepository: RestItemRepository by lazy {
+        RestItemRepository(
+            MyServerService.getInstance(),
+            itemRepository,
+            userItemRepository,
+            rentItemRepository,
+        )
+    }
+    override val userRestRepository: RestUserRepository by lazy {
+        RestUserRepository(
+            MyServerService.getInstance(),
+            userRepository,
+            userItemRepository,
+        )
+    }
+    override val rentRestRepository: RestRentRepository by lazy {
+        RestRentRepository(
+            MyServerService.getInstance(),
+            rentRepository,
+            bikeRepository,
+            rentItemRepository,
+            remoteKeyRepository,
+            AppDatabase.getInstance(context)
+        )
+    }
+    override val userItemRestRepository: RestUserItemRepository by lazy {
+        RestUserItemRepository(
+            MyServerService.getInstance(),
+            userItemRepository,
+        )
+    }
+    override val rentItemRestRepository: RestRentItemRepository by lazy {
+        RestRentItemRepository(
+            MyServerService.getInstance(),
+            rentItemRepository,
+        )
+    }
+}

app/src/main/java/com/example/myapplication/database/room/repository/offline/OfflineBikeRepository.kt

@@ -0,0 +1,51 @@
+package com.example.myapplication.database.room.repository.offline
+
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import androidx.paging.PagingSource
+import com.example.myapplication.database.room.dao.bike.BikeDao
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.model.bike.BikeWithItems
+import com.example.myapplication.database.room.repository.AppContainer
+import com.example.myapplication.database.room.repository.online.BikeRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+
+class OfflineBikeRepository(private val bikeDao: BikeDao) : BikeRepository {
+    override fun getAllBikes(): Flow<PagingData<Bike>> = Pager(
+        config = PagingConfig(
+            pageSize = AppContainer.LIMIT,
+            enablePlaceholders = false
+        ),
+        pagingSourceFactory = bikeDao::getAll
+    ).flow
+
+    override suspend fun getBike(uid: Int): BikeWithItems {
+        val item = bikeDao.getByUid(uid)
+            .map { map ->
+                map.firstNotNullOf {
+                    BikeWithItems(
+                        bike = it.key,
+                        items = it.value
+                    )
+                }
+            }
+            .first()
+        return item
+    }
+
+    override suspend fun insertBike(bike: Bike) = bikeDao.insert(bike)
+
+    override suspend fun updateBike(bike: Bike) = bikeDao.update(bike)
+
+    override suspend fun deleteBike(bike: Bike) = bikeDao.delete(bike)
+
+    fun getAllBikesPagingSource(): PagingSource<Int, Bike> = bikeDao.getAll()
+
+    suspend fun insertBikes(bikes: List<Bike>) =
+        bikeDao.insert(*bikes.toTypedArray())
+
+    suspend fun clearBikes() = bikeDao.deleteAll()
+}

app/src/main/java/com/example/myapplication/database/room/repository/offline/OfflineItemRepository.kt

@@ -0,0 +1,20 @@
+package com.example.myapplication.database.room.repository.offline
+
+import com.example.myapplication.database.room.dao.item.ItemDao
+import com.example.myapplication.database.room.model.item.Item
+import com.example.myapplication.database.room.repository.online.ItemRepository
+
+class OfflineItemRepository(private val itemDao: ItemDao) : ItemRepository {
+    override suspend fun getItem(uid: Int): Item = itemDao.getByUid(uid)
+
+    override suspend fun insertItem(item: Item) = itemDao.insert(item)
+
+    override suspend fun updateItem(item: Item) = itemDao.update(item)
+
+    override suspend fun deleteItem(item: Item) = itemDao.delete(item)
+
+    suspend fun insertItems(items: List<Item>) =
+        itemDao.insert(*items.toTypedArray())
+
+    suspend fun clearItems() = itemDao.deleteAll()
+}

app/src/main/java/com/example/myapplication/database/room/repository/offline/OfflineRentItemRepository.kt

@@ -0,0 +1,22 @@
+package com.example.myapplication.database.room.repository.offline
+
+import com.example.myapplication.database.room.dao.rent.RentItemCrossRefDao
+import com.example.myapplication.database.room.model.rent.RentItemCrossRef
+import com.example.myapplication.database.room.repository.online.RentItemRepository
+
+
+class OfflineRentItemRepository(private val rentItemDao: RentItemCrossRefDao) :
+    RentItemRepository {
+    override suspend fun insertRentItem(rentItemCrossRef: RentItemCrossRef) =
+        rentItemDao.insert(rentItemCrossRef)
+
+    override suspend fun updateRentItem(rentItemCrossRef: RentItemCrossRef) =
+        rentItemDao.update(rentItemCrossRef)
+
+    override suspend fun deleteRentItem(rentItemCrossRef: RentItemCrossRef) =
+        rentItemDao.delete(rentItemCrossRef)
+
+    suspend fun deleteRentItems(userId: Int) = rentItemDao.deleteByRentUid(userId)
+
+    suspend fun deleteItemsByUid(itemId: Int) = rentItemDao.deleteByItemUid(itemId)
+}

app/src/main/java/com/example/myapplication/database/room/repository/offline/OfflineRentRepository.kt

@@ -0,0 +1,36 @@
+package com.example.myapplication.database.room.repository.offline
+
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import androidx.paging.PagingSource
+import com.example.myapplication.database.room.dao.rent.RentDao
+import com.example.myapplication.database.room.model.item.ItemFromRent
+import com.example.myapplication.database.room.model.rent.Rent
+import com.example.myapplication.database.room.repository.AppContainer
+import com.example.myapplication.database.room.repository.online.RentRepository
+import kotlinx.coroutines.flow.Flow
+
+class OfflineRentRepository(private val rentDao: RentDao) : RentRepository {
+    override fun getAllRents(userId: Int?): Flow<PagingData<Rent>> = Pager(
+        config = PagingConfig(
+            pageSize = AppContainer.LIMIT,
+            enablePlaceholders = false
+        ),
+        pagingSourceFactory = { rentDao.getAll(userId) }
+    ).flow
+
+    override suspend fun getRent(uid: Int): List<ItemFromRent> = rentDao.getByUid(uid)
+
+    override suspend fun insertRent(rent: Rent): Long = rentDao.insert(rent).first()
+
+    fun getAllRentsPagingSource(userId: Int?): PagingSource<Int, Rent> = rentDao.getAll(userId)
+
+    suspend fun clearRents() = rentDao.deleteAll()
+
+    suspend fun insertRents(rents: List<Rent>) = rentDao.insert(*rents.toTypedArray())
+
+    override suspend fun deleteRent(rent: Rent) {
+        rentDao.delete(rent)
+    }
+}

app/src/main/java/com/example/myapplication/database/room/repository/offline/OfflineUserItemRepository.kt

@@ -0,0 +1,21 @@
+package com.example.myapplication.database.room.repository.offline
+
+import com.example.myapplication.database.room.dao.user.UserItemCrossRefDao
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+import com.example.myapplication.database.room.repository.online.UserItemRepository
+
+class OfflineUserItemRepository(private val userItemDao: UserItemCrossRefDao) :
+    UserItemRepository {
+    override suspend fun insertUserItem(userItemCrossRef: UserItemCrossRef) =
+        userItemDao.insert(userItemCrossRef)
+
+    override suspend fun updateUserItem(userItemCrossRef: UserItemCrossRef) =
+        userItemDao.update(userItemCrossRef)
+
+    override suspend fun deleteUserItem(userItemCrossRef: UserItemCrossRef) =
+        userItemDao.delete(userItemCrossRef)
+
+    override suspend fun deleteUserItems(userId: Int) = userItemDao.deleteByUserUid(userId)
+
+    suspend fun deleteItemsByUid(itemId: Int) = userItemDao.deleteByItemUid(itemId)
+}

app/src/main/java/com/example/myapplication/database/room/repository/offline/OfflineUserRepository.kt

@@ -0,0 +1,27 @@
+package com.example.myapplication.database.room.repository.offline
+
+import com.example.myapplication.database.room.dao.user.UserDao
+import com.example.myapplication.database.room.model.item.ItemFromCart
+import com.example.myapplication.database.room.model.user.User
+import com.example.myapplication.database.room.repository.online.UserRepository
+import kotlinx.coroutines.flow.first
+
+class OfflineUserRepository(private val userDao: UserDao) : UserRepository {
+    override suspend fun getAllUsers(): List<User> = userDao.getAll()
+    override suspend fun getUserById(idUser: Int?): User? = userDao.getUserById(idUser).first()
+
+
+    override suspend fun getCartByUser(userId: Int): List<ItemFromCart> =
+        userDao.getCartByUid(userId)
+
+    override suspend fun insertUser(user: User) = userDao.insert(user)
+
+    override suspend fun updateUser(user: User) = userDao.update(user)
+
+    override suspend fun deleteUser(user: User) = userDao.delete(user)
+
+    suspend fun insertUsers(users: List<User>) =
+        userDao.insert(*users.toTypedArray())
+
+    suspend fun clearUsers() = userDao.deleteAll()
+}

app/src/main/java/com/example/myapplication/database/room/repository/online/BikeRepository.kt

@@ -0,0 +1,14 @@
+package com.example.myapplication.database.room.repository.online
+
+import androidx.paging.PagingData
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.model.bike.BikeWithItems
+import kotlinx.coroutines.flow.Flow
+
+interface BikeRepository {
+    fun getAllBikes(): Flow<PagingData<Bike>>
+    suspend fun getBike(uid: Int): BikeWithItems
+    suspend fun insertBike(bike: Bike)
+    suspend fun updateBike(bike: Bike)
+    suspend fun deleteBike(bike: Bike)
+}

app/src/main/java/com/example/myapplication/database/room/repository/online/ItemRepository.kt

@@ -0,0 +1,11 @@
+package com.example.myapplication.database.room.repository.online
+
+import com.example.myapplication.database.room.model.item.Item
+
+
+interface ItemRepository {
+    suspend fun getItem(uid: Int): Item
+    suspend fun insertItem(item: Item)
+    suspend fun updateItem(item: Item)
+    suspend fun deleteItem(item: Item)
+}

app/src/main/java/com/example/myapplication/database/room/repository/online/RentItemRepository.kt

@@ -0,0 +1,10 @@
+package com.example.myapplication.database.room.repository.online
+
+import com.example.myapplication.database.room.model.rent.RentItemCrossRef
+
+
+interface RentItemRepository {
+    suspend fun insertRentItem(rentItemCrossRef: RentItemCrossRef)
+    suspend fun updateRentItem(rentItemCrossRef: RentItemCrossRef)
+    suspend fun deleteRentItem(rentItemCrossRef: RentItemCrossRef)
+}

app/src/main/java/com/example/myapplication/database/room/repository/online/RentRepository.kt

@@ -0,0 +1,13 @@
+package com.example.myapplication.database.room.repository.online
+
+import androidx.paging.PagingData
+import com.example.myapplication.database.room.model.item.ItemFromRent
+import com.example.myapplication.database.room.model.rent.Rent
+import kotlinx.coroutines.flow.Flow
+
+interface RentRepository {
+    fun getAllRents(userId: Int?): Flow<PagingData<Rent>>
+    suspend fun getRent(uid: Int): List<ItemFromRent>
+    suspend fun insertRent(rent: Rent): Long
+    suspend fun deleteRent(rent: Rent)
+}

app/src/main/java/com/example/myapplication/database/room/repository/online/UserItemRepository.kt

@@ -0,0 +1,11 @@
+package com.example.myapplication.database.room.repository.online
+
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+
+
+interface UserItemRepository {
+    suspend fun insertUserItem(userItemCrossRef: UserItemCrossRef)
+    suspend fun updateUserItem(userItemCrossRef: UserItemCrossRef)
+    suspend fun deleteUserItem(userItemCrossRef: UserItemCrossRef)
+    suspend fun deleteUserItems(userId: Int)
+}

app/src/main/java/com/example/myapplication/database/room/repository/online/UserRepository.kt

@@ -0,0 +1,14 @@
+package com.example.myapplication.database.room.repository.online
+
+import com.example.myapplication.database.room.model.item.ItemFromCart
+import com.example.myapplication.database.room.model.user.User
+
+
+interface UserRepository {
+    suspend fun getAllUsers(): List<User>
+    suspend fun getUserById(idUser: Int?): User?
+    suspend fun getCartByUser(userId: Int): List<ItemFromCart>
+    suspend fun insertUser(user: User)
+    suspend fun updateUser(user: User)
+    suspend fun deleteUser(user: User)
+}

app/src/main/java/com/example/myapplication/database/room/viewmodel/LoadingViewModel.kt

@@ -0,0 +1,50 @@
+package com.example.myapplication.database.room.viewmodel
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.api.ApiStatus
+import kotlinx.coroutines.launch
+import retrofit2.HttpException
+import java.io.IOException
+
+open class LoadingViewModel : ViewModel() {
+    var apiStatus by mutableStateOf(ApiStatus.DONE)
+        private set
+
+    var apiError by mutableStateOf("")
+        private set
+
+    fun runInScope(
+        actionSuccess: suspend () -> Unit,
+        actionError: suspend () -> Unit,
+        needLoadingScreen: Boolean = true,
+    ) {
+        viewModelScope.launch {
+            if (needLoadingScreen)
+                apiStatus = ApiStatus.LOADING
+            runCatching {
+                actionSuccess()
+                apiStatus = ApiStatus.DONE
+                apiError = ""
+            }.onFailure { e: Throwable ->
+                when (e) {
+                    is IOException,
+                    is HttpException -> {
+                        actionError()
+                        apiStatus = ApiStatus.ERROR
+                        apiError = e.localizedMessage ?: e.toString()
+                    }
+
+                    else -> throw e
+                }
+            }
+        }
+    }
+
+    fun runInScope(actionSuccess: suspend () -> Unit) {
+        runInScope(actionSuccess, actionError = {})
+    }
+}

app/src/main/java/com/example/myapplication/database/room/viewmodel/bike/BikeListViewModel.kt

@@ -0,0 +1,17 @@
+package com.example.myapplication.database.entities.composeui
+
+import androidx.lifecycle.ViewModel
+import androidx.paging.PagingData
+import com.example.myapplication.database.room.model.bike.Bike
+import com.example.myapplication.database.room.repository.online.BikeRepository
+import kotlinx.coroutines.flow.Flow
+
+class BikeListViewModel(
+    private val bikeRepository: BikeRepository
+) : ViewModel() {
+    val bikeListUiState: Flow<PagingData<Bike>> = bikeRepository.getAllBikes()
+
+    suspend fun deleteBike(bike: Bike) {
+        bikeRepository.deleteBike(bike)
+    }
+}

app/src/main/java/com/example/myapplication/database/room/viewmodel/bike/BikeViewModel.kt

@@ -0,0 +1,45 @@
+package com.example.myapplication.database.entities.composeui
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import com.example.myapplication.database.room.model.bike.BikeWithItems
+import com.example.myapplication.database.room.repository.online.BikeRepository
+
+class BikeViewModel(
+    savedStateHandle: SavedStateHandle, private val bikeRepository: BikeRepository
+) : ViewModel() {
+    private val bikeUid: Int = checkNotNull(savedStateHandle["id"])
+
+    var bikeUiState by mutableStateOf(BikeUiState())
+        private set
+
+    suspend fun refreshState() {
+        if (bikeUid > 0) {
+            bikeUiState = BikeUiState(bikeRepository.getBike(bikeUid))
+        }
+    }
+
+//    init {
+//        viewModelScope.launch {
+//            if (bikeUid > 0) {
+//                bikeUiState = BikeUiState(bikeRepository.getBike(bikeUid))
+//            }
+//        }
+//    }
+
+//    val bikeUiState: mutableStateOf(BikeUiState()) = bikeRepository.getBike(
+//    bikeUid
+//    ).map
+//    {
+//        BikeUiState(it)
+//    }.stateIn(
+//    scope = viewModelScope,
+//    started = SharingStarted.WhileSubscribed(stopTimeoutMillis = AppDataContainer.TIMEOUT),
+//    initialValue = BikeUiState()
+//    )
+}
+
+data class BikeUiState(val bikeWithItems: BikeWithItems? = null)

app/src/main/java/com/example/myapplication/database/room/viewmodel/cart/CartViewModel.kt

@@ -0,0 +1,71 @@
+package com.example.myapplication.database.room.viewmodel.cart
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import com.example.myapplication.database.room.model.item.Item
+import com.example.myapplication.database.room.model.item.ItemFromCart
+import com.example.myapplication.database.room.model.rent.Rent
+import com.example.myapplication.database.room.model.rent.RentItemCrossRef
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+import com.example.myapplication.database.room.repository.online.RentItemRepository
+import com.example.myapplication.database.room.repository.online.RentRepository
+import com.example.myapplication.database.room.repository.online.UserItemRepository
+import com.example.myapplication.database.room.repository.online.UserRepository
+
+class CartViewModel(
+    private val userItemRepository: UserItemRepository,
+    private val rentRepository: RentRepository,
+    private val rentItemRepository: RentItemRepository,
+    private val userRepository: UserRepository,
+) : ViewModel() {
+    //private val userUid: Int = 1
+    var cartUiState by mutableStateOf(CartUiState())
+        private set
+
+    suspend fun refreshState(userId: Int) {
+        val cart = userRepository.getCartByUser(userId)
+        cartUiState = CartUiState(cart)
+    }
+
+    suspend fun addToRent(userId: Int, items: List<ItemFromCart>) {
+        if (items.isEmpty())
+            return
+        val rentId = rentRepository.insertRent(Rent(0, userId))
+        items.forEach { item ->
+            rentItemRepository.insertRentItem(
+                RentItemCrossRef(
+                    rentId.toInt(),
+                    item.uid,
+                    item.weight,
+                    item.radius,
+                    item.colorbike,
+                    item.count
+                )
+            )
+        }
+        userItemRepository.deleteUserItems(userId)
+        refreshState(userId)
+    }
+
+    suspend fun removeFromCart(user: Int, item: Item, count: Int = 1) {
+        userItemRepository.deleteUserItem(UserItemCrossRef(user, item.uid, count))
+        refreshState(user)
+    }
+
+    suspend fun updateFromCart(userId: Int, item: Item, count: Int, availableCount: Int)
+            : Boolean {
+        if (count == 0) {
+            removeFromCart(userId, item, count)
+            return false
+        }
+        if (count > availableCount)
+            return false
+        userItemRepository.updateUserItem(UserItemCrossRef(userId, item.uid, count))
+        refreshState(userId)
+        return true
+    }
+}
+
+data class CartUiState(val itemList: List<ItemFromCart> = listOf())

app/src/main/java/com/example/myapplication/database/room/viewmodel/item/ItemEditViewModel.kt

@@ -0,0 +1,112 @@
+package com.example.myapplication.database.entities.composeui.edit
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.database.room.model.item.Item
+import com.example.myapplication.database.room.repository.online.ItemRepository
+import kotlinx.coroutines.launch
+import org.threeten.bp.LocalDateTime
+
+class ItemEditViewModel(
+    savedStateHandle: SavedStateHandle,
+    private val itemRepository: ItemRepository
+) : ViewModel() {
+    var itemUiState by mutableStateOf(ItemUiState())
+        private set
+
+    private val itemUid: Int = checkNotNull(savedStateHandle["id"])
+    private val bikeUid: Int = checkNotNull(savedStateHandle["bikeId"])
+
+    init {
+        viewModelScope.launch {
+            if (itemUid > 0) {
+                itemUiState = itemRepository.getItem(itemUid)
+                    .toUiState(true)
+            }
+        }
+    }
+
+    fun updateUiState(itemDetails: ItemDetails) {
+        itemUiState = ItemUiState(
+            itemDetails = itemDetails,
+            isEntryValid = validateInput(itemDetails)
+        )
+    }
+
+    suspend fun saveItem() {
+        if (validateInput()) {
+            if (bikeUid > 0)
+                if (itemUid > 0) {
+                    itemRepository.updateItem(
+                        itemUiState.itemDetails
+                            .toItem(uid = itemUid, bikeUid = bikeUid)
+                    )
+                } else {
+                    itemRepository.insertItem(
+                        itemUiState.itemDetails.toItem(
+                            bikeUid = bikeUid
+                        )
+                    )
+                }
+        }
+    }
+
+    private fun validateInput(uiState: ItemDetails = itemUiState.itemDetails): Boolean {
+        return with(uiState) {
+            dateTime != LocalDateTime.MIN
+                    && isValidDouble(weight)
+                    && maxCount > 0
+                    && bikeUid > 0
+        }
+    }
+}
+
+val regex = """^-?\d+(.\d+)?+(,\d+)?$""".toRegex()
+
+fun isValidDouble(input: String): Boolean {
+    return regex.matches(input)
+}
+
+data class ItemUiState(
+    val itemDetails: ItemDetails = ItemDetails(),
+    val isEntryValid: Boolean = false
+)
+
+data class ItemDetails(
+    val uid: Int = 0,
+    val dateTime: LocalDateTime = LocalDateTime.MIN,
+    val weight: String = "0",
+    val radius: String = "0",
+    val colorbike: String = "0",
+    val maxCount: Int = 0,
+    val bikeId: Int = 0
+)
+
+fun ItemDetails.toItem(uid: Int = 0, bikeUid: Int = 0): Item = Item(
+    uid = uid,
+    dateTime = dateTime,
+    weight = weight.toDoubleOrNull() ?: 0.0,
+    radius = radius.toDoubleOrNull() ?: 0.0,
+    colorbike = colorbike,
+    maxCount = maxCount,
+    bikeId = bikeUid
+)
+
+fun Item.toDetails(): ItemDetails = ItemDetails(
+    uid = uid,
+    dateTime = dateTime,
+    weight = weight.toString(),
+    radius = radius.toString(),
+    colorbike = colorbike,
+    maxCount = maxCount,
+    bikeId = bikeId
+)
+
+fun Item.toUiState(isEntryValid: Boolean = false): ItemUiState = ItemUiState(
+    itemDetails = this.toDetails(),
+    isEntryValid = isEntryValid
+)

app/src/main/java/com/example/myapplication/database/room/viewmodel/item/ItemListViewModel.kt

@@ -0,0 +1,34 @@
+package com.example.myapplication.database.room.viewmodel.item
+
+import androidx.lifecycle.ViewModel
+import com.example.myapplication.database.room.model.item.Item
+import com.example.myapplication.database.room.model.item.ItemFromBike
+import com.example.myapplication.database.room.model.user.UserItemCrossRef
+import com.example.myapplication.database.room.repository.online.ItemRepository
+import com.example.myapplication.database.room.repository.online.UserItemRepository
+class ItemListViewModel(
+    private val itemRepository: ItemRepository,
+    private val userItemRepository: UserItemRepository
+) : ViewModel() {
+    suspend fun deleteItem(item: ItemFromBike) {
+        itemRepository.deleteItem(
+            Item(
+                uid = item.uid,
+                dateTime = item.dateTime,
+                weight = item.weight,
+                radius = item.radius,
+                colorbike = item.colorbike,
+                maxCount = 0,
+                bikeId = 0
+            )
+        )
+    }
+
+    suspend fun addItemInCart(userId: Int, itemId: Int, count: Int = 1) {
+        try {
+            userItemRepository.insertUserItem(UserItemCrossRef(userId, itemId, count))
+        } catch (_: Exception) {
+
+        }
+    }
+}

app/src/main/java/com/example/myapplication/database/room/viewmodel/rent/RentListViewModel.kt

@@ -0,0 +1,31 @@
+package com.example.myapplication.database.room.viewmodel.rent
+
+import androidx.lifecycle.ViewModel
+import androidx.paging.PagingData
+import com.example.myapplication.database.room.model.rent.Rent
+import com.example.myapplication.database.room.repository.online.RentRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.flatMapLatest
+
+class RentListViewModel(
+    private val rentRepository: RentRepository
+) : ViewModel() {
+    private val _userId = MutableStateFlow<Int?>(null)
+    val userId: StateFlow<Int?> get() = _userId
+
+    val rentListUiState: Flow<PagingData<Rent>> = userId.flatMapLatest { userId ->
+        rentRepository.getAllRents(userId)
+    }
+
+    suspend fun deleteRent(rent: Rent) {
+        rentRepository.deleteRent(rent)
+    }
+
+    fun setUserId(userId: Int) {
+        _userId.value = userId
+    }
+}
+
+data class RentListUiState(val rentList: List<Rent> = listOf())

app/src/main/java/com/example/myapplication/database/room/viewmodel/rent/RentViewModel.kt

@@ -0,0 +1,30 @@
+package com.example.myapplication.database.room.viewmodel.rent
+
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.database.room.model.item.ItemFromRent
+import com.example.myapplication.database.room.repository.AppContainer
+import com.example.myapplication.database.room.repository.online.RentRepository
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+
+class RentViewModel(
+    savedStateHandle: SavedStateHandle,
+    private val rentRepository: RentRepository
+) : ViewModel() {
+    private val rentUid: Int = checkNotNull(savedStateHandle["id"])
+
+    val rentUiState: StateFlow<RentUiState> = flow{emit(rentRepository.getRent(rentUid))} .map {
+        RentUiState(it)
+    }.stateIn(
+        scope = viewModelScope,
+        started = SharingStarted.WhileSubscribed(stopTimeoutMillis = AppContainer.TIMEOUT),
+        initialValue = RentUiState()
+    )
+}
+
+data class RentUiState(val itemList: List<ItemFromRent> = listOf())

app/src/main/java/com/example/myapplication/database/room/viewmodel/rent/ReportViewModel.kt

@@ -0,0 +1,108 @@
+package com.example.myapplication.database.room.viewmodel.rent
+
+import android.content.Context
+import android.util.Log
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.api.item.repository.RestItemRepository
+import com.example.myapplication.api.report.remote.ReportRemote
+import kotlinx.coroutines.launch
+import java.text.ParseException
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+class ReportViewModel(private val itemRespository: RestItemRepository): ViewModel() {
+    var reportPageUiState by mutableStateOf(ReportPageUiState())
+        private set
+
+    var reportResultPageUiState by mutableStateOf(ReportResultPageUiState())
+        private set
+
+    var cardVisible by mutableStateOf(false)
+        private set
+
+    var errorState by mutableStateOf<String?>(null)
+
+    fun onUpdate(reportDetails: ReportDetails) {
+        reportPageUiState = ReportPageUiState(reportDetails = reportDetails, isEntryValid = validateInput(reportDetails))
+    }
+
+    private fun validateInput(uiState: ReportDetails = reportPageUiState.reportDetails): Boolean {
+        Log.d("validateInput", uiState.endDate.toString())
+        return with(uiState) {
+            startDate != Date(0) && endDate != Date(0) && startDate < endDate
+        }
+    }
+
+    suspend fun getReport() {
+        val dateFormatter = SimpleDateFormat("yyyy", Locale.getDefault())
+
+        // Преобразование даты в строку в формате "yyyy"
+        val startDateQueryParam = dateFormatter.format(reportPageUiState.reportDetails.startDate)
+        val endDateQueryParam = dateFormatter.format(reportPageUiState.reportDetails.endDate)
+
+        // Вызов репозитория с отформатированными датами
+        val res = itemRespository.getReport(startDateQueryParam, endDateQueryParam)
+        reportResultPageUiState = ReportResultPageUiState(res)
+    }
+
+    suspend fun generatePdfFile(context: Context, fileName: String, reportData: List<ReportRemote>) {
+        itemRespository.createPdfFile(context, fileName, reportData)
+    }
+
+    fun onButtonClick(startDate: String, endDate: String) {
+        viewModelScope.launch {
+            val parsedStartDate = parseDate(startDate)
+            val parsedEndDate = parseDate(endDate)
+
+            if (validateDates(parsedStartDate, parsedEndDate)) {
+                updateReportDetails(parsedStartDate, parsedEndDate)
+                getReport()
+                cardVisible = true
+            } else {
+                Log.d("Ошибка даты", "Неправильно указаны даты или года не являются 4-значными =${startDate}")
+                errorState = "Ошибка фильтраций: неверно указаны даты"
+            }
+        }
+    }
+
+    private fun validateDates(startDate: Date?, endDate: Date?): Boolean {
+        return startDate != null && endDate != null && startDate < endDate
+    }
+
+    private fun updateReportDetails(startDate: Date?, endDate: Date?) {
+        if (startDate != null && endDate != null) {
+            onUpdate(reportPageUiState.reportDetails.copy(startDate = startDate, endDate = endDate))
+        }
+    }
+
+    private fun parseDate(dateString: String): Date? {
+        return try {
+            // Use SimpleDateFormat or any other method to parse the string into a Date object
+            // For example:
+            SimpleDateFormat("yyyy", Locale.getDefault()).parse(dateString)
+        } catch (e: ParseException) {
+            // Handle parsing error
+            null
+        }
+    }
+
+}
+
+data class ReportDetails(
+    val startDate: Date = Date(0),
+    val endDate: Date = Date(0)
+)
+
+data class ReportPageUiState(
+    val reportDetails: ReportDetails = ReportDetails(),
+    val isEntryValid: Boolean = false
+)
+
+data class ReportResultPageUiState(
+    var resReport: List<ReportRemote> = emptyList()
+)

app/src/main/java/com/example/myapplication/database/room/viewmodel/user/CurrentUserViewModel.kt

@@ -0,0 +1,28 @@
+package com.example.myapplication.database.room.viewmodel.user
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.database.room.model.user.User
+import com.example.myapplication.database.room.repository.online.UserRepository
+import kotlinx.coroutines.launch
+
+class CurrentUserViewModel(private val userRepository: UserRepository) : ViewModel(){
+    val argument = mutableStateOf<String?>(null)
+    private val userid = mutableStateOf<Int?>(null)
+    var user by mutableStateOf<User?>(null)
+
+    fun setArgument(arg: String) {
+        argument.value = arg
+        userid.value = arg.toInt()
+        viewModelScope.launch {
+            user = userRepository.getUserById(userid.value)
+        }
+    }
+
+    fun setNullUser() {
+        user = null
+    }
+}

app/src/main/java/com/example/myapplication/database/room/viewmodel/user/EntryUserViewModel.kt

@@ -0,0 +1,24 @@
+package com.example.myapplication.database.room.viewmodel.user
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.database.room.model.user.User
+import com.example.myapplication.database.room.repository.online.UserRepository
+import kotlinx.coroutines.launch
+
+class EntryUserViewModel(private val userRepository: UserRepository) : ViewModel() {
+
+    var userList by mutableStateOf<List<User>>(emptyList())
+    fun setUserList() {
+        viewModelScope.launch {
+            userList=userRepository.getAllUsers()
+        }
+    }
+
+    fun loginUser(username: String, password: String): User? {
+        return userList.find { it.login == username && it.password == password }
+    }
+}

app/src/main/java/com/example/myapplication/database/room/viewmodel/user/RegisterUserViewModel.kt

@@ -0,0 +1,38 @@
+package com.example.myapplication.database.room.viewmodel.user
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.myapplication.database.room.model.user.User
+import com.example.myapplication.database.room.repository.online.UserRepository
+import kotlinx.coroutines.launch
+
+class RegisterUserViewModel(private val userRepository: UserRepository) : ViewModel() {
+
+    private val _users = MutableLiveData<List<User>>()
+    val users: LiveData<List<User>> get() = _users
+
+    fun setUserList() {
+        viewModelScope.launch {
+            _users.value = userRepository.getAllUsers()
+        }
+    }
+
+    suspend fun insertUser(user: User) {
+        userRepository.insertUser(user)
+    }
+
+    suspend fun registerUser(username: String, password: String): Boolean {
+        if (password.isNotEmpty() && username.isNotEmpty()) {
+            val existingUser = _users.value?.find { it.login == username }
+            if (existingUser == null) {
+                val newUser = User(null, username,"user" ,password)
+                insertUser(newUser)
+                setUserList()
+                return true
+            }
+        }
+        return false
+    }
+}