CRUD почти есть, также работает регистрация и вход

app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools">
 
     <application
+        android:name=".MobileApp"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"

app/src/main/java/com/example/mobileapp/MobileApp.kt

@@ -0,0 +1,12 @@
+package com.example.mobileapp
+
+import android.app.Application
+
+class MobileApp: Application() {
+    lateinit var container: MobileAppContainer
+
+    override fun onCreate() {
+        super.onCreate()
+        container = MobileAppDataContainer(this)
+    }
+}

app/src/main/java/com/example/mobileapp/MobileAppContainer.kt

@@ -0,0 +1,34 @@
+package com.example.mobileapp
+
+import android.content.Context
+import com.example.mobileapp.database.MobileAppDataBase
+import com.example.mobileapp.database.repositories.MailRepository
+import com.example.mobileapp.database.repositories.OfflineMailRepository
+import com.example.mobileapp.database.repositories.OfflineStoryRepository
+import com.example.mobileapp.database.repositories.OfflineUserRepository
+import com.example.mobileapp.database.repositories.StoryRepository
+import com.example.mobileapp.database.repositories.UserRepository
+
+interface MobileAppContainer {
+    val mailRepository: MailRepository
+    val storyRepository: StoryRepository
+    val userRepository: UserRepository
+}
+
+class MobileAppDataContainer(private val context: Context): MobileAppContainer {
+    override val mailRepository: MailRepository by lazy {
+        OfflineMailRepository(MobileAppDataBase.getInstance(context).mailDao())
+    }
+
+    override val storyRepository: StoryRepository by lazy {
+        OfflineStoryRepository(MobileAppDataBase.getInstance(context).storyDao())
+    }
+
+    override val userRepository: UserRepository by lazy {
+        OfflineUserRepository(MobileAppDataBase.getInstance(context).userDao())
+    }
+
+    companion object{
+        const val TIMEOUT = 5000L
+    }
+}

app/src/main/java/com/example/mobileapp/components/ListContent.kt

@@ -36,11 +36,14 @@ import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import com.example.mobileapp.R
 import com.example.mobileapp.database.MobileAppDataBase
 import com.example.mobileapp.database.entities.Mail
 import com.example.mobileapp.database.entities.Story
+import com.example.mobileapp.database.viewmodels.MobileAppViewModelProvider
+import com.example.mobileapp.database.viewmodels.StoryViewModel
 import com.example.mobileapp.ui.theme.BackgroundItem2
 import com.example.mobileapp.ui.theme.ButtonColor1
 import com.example.mobileapp.ui.theme.ButtonColor2
@@ -78,9 +81,10 @@ inline fun <reified T> List<*>.isListOf(): Boolean {
 }
 
 @Composable
-fun StoryListItem(item: Story, navController: NavHostController){
-    val context = LocalContext.current
-
+fun StoryListItem(item: Story, navController: NavHostController,
+                  storyViewModel: StoryViewModel = viewModel(
+                      factory = MobileAppViewModelProvider.Factory
+                  )) {
     val isExpanded = remember {
         mutableStateOf(false)
     }
@@ -89,10 +93,6 @@ fun StoryListItem(item: Story, navController: NavHostController){
         mutableStateOf(false)
     }
 
-    val delete = remember {
-        mutableStateOf(false)
-    }
-
     Card(
         modifier = Modifier
             .fillMaxWidth()
@@ -153,22 +153,12 @@ fun StoryListItem(item: Story, navController: NavHostController){
     if(showDialog.value) {
         DialogWindow(label = "Подтверждение",
             message = "Вы уверены что хотите удалить запись?", onConfirmAction = {
-                delete.value = !delete.value
+                storyViewModel.deleteStory(item)
                 showDialog.value = !showDialog.value
         }, onDismissAction = {
                 showDialog.value = !showDialog.value
         })
     }
-
-    if(delete.value) {
-        LaunchedEffect(Unit){
-            withContext(Dispatchers.IO){
-                MobileAppDataBase.getInstance(context).storyDao().delete(item)
-            }
-        }
-        delete.value = !delete.value
-        navController.navigate("story")
-    }
 }
 
 @Composable

app/src/main/java/com/example/mobileapp/components/NavigationBar.kt

@@ -18,13 +18,17 @@ import androidx.compose.material3.NavigationBar
 import androidx.compose.material3.NavigationBarItem
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
 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 androidx.navigation.NavHostController
@@ -37,8 +41,8 @@ import com.example.mobileapp.screens.Authorization
 import com.example.mobileapp.screens.EditMailScreen
 import com.example.mobileapp.screens.EditStoryScreen
 import com.example.mobileapp.screens.EditUserScreen
-import com.example.mobileapp.screens.ListDataScreen
 import com.example.mobileapp.screens.ListMailScreen
+import com.example.mobileapp.screens.ListStoryScreen
 import com.example.mobileapp.screens.MainScreen
 import com.example.mobileapp.screens.Registration
 import com.example.mobileapp.screens.SettingsScreen
@@ -53,9 +57,28 @@ val navBarItems = listOf(
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun NavBar(navController: NavHostController) {
+    val topBarState = rememberSaveable { (mutableStateOf(false)) }
     val bottomBarState = rememberSaveable { (mutableStateOf(false)) }
 
     Scaffold(
+        topBar = {
+            AnimatedVisibility(
+                visible = topBarState.value,
+                enter = slideInVertically(initialOffsetY = { it }),
+                exit = slideOutVertically(targetOffsetY = { it }),
+                content = {
+                    TopAppBar(title = {
+                        Text(
+                            text = "Storyteller",
+                            textAlign = TextAlign.Center,
+                            fontFamily = FontFamily(Font(
+                                R.font.irishgrover_regular, FontWeight.Bold
+                            ))
+                        )
+                    })
+                }
+            )
+        },
         bottomBar = {
             AnimatedVisibility(
                 visible = bottomBarState.value,
@@ -98,30 +121,37 @@ fun NavBar(navController: NavHostController) {
             modifier = Modifier.padding(innerPaddings)
         ) {
             composable("authorization"){
+                topBarState.value = true
                 bottomBarState.value = false
                 Authorization(navController = navController)
             }
             composable("registration"){
+                topBarState.value = true
                 bottomBarState.value = false
                 Registration(navController = navController)
             }
             composable("main"){
+                topBarState.value = false
                 bottomBarState.value = true
                 MainScreen(navController = navController)
             }
             composable("story"){
+                topBarState.value = false
                 bottomBarState.value = true
-                ListDataScreen(navController = navController)
+                ListStoryScreen(navController = navController)
             }
             composable("mail"){
+                topBarState.value = false
                 bottomBarState.value = true
                 ListMailScreen(navController = navController)
             }
             composable("settings"){
+                topBarState.value = true
                 bottomBarState.value = true
                 SettingsScreen(navController = navController)
             }
             composable("editstory"){ // Без аргумента
+                topBarState.value = false
                 bottomBarState.value = false
                 EditStoryScreen(navController = navController)
             }
@@ -130,15 +160,18 @@ fun NavBar(navController: NavHostController) {
                 arguments = listOf(navArgument("id") { type = NavType.IntType }) //С аргументом
             ) { backStackEntry ->
                 backStackEntry.arguments?.let {
+                    topBarState.value = false
                     bottomBarState.value = false
                     EditStoryScreen(navController = navController, storyId = it.getInt("id"))
                 }
             }
             composable("editmail"){ // Без аргумента
+                topBarState.value = false
                 bottomBarState.value = false
                 EditMailScreen(navController = navController)
             }
             composable("edituser"){
+                topBarState.value = false
                 bottomBarState.value = false
                 EditUserScreen(navController = navController)
             }

app/src/main/java/com/example/mobileapp/database/dao/MailDao.kt

@@ -15,7 +15,7 @@ interface MailDao {
     fun getAll(): Flow<List<Mail>>
 
     @Query("select * from mails where mails.id = :id")
-    fun getById(id: Int): Mail?
+    fun getById(id: Int): Flow<Mail?>
 
     @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun insert(mail: Mail)

app/src/main/java/com/example/mobileapp/database/dao/StoryDao.kt

@@ -15,7 +15,7 @@ interface StoryDao {
     fun getAll(): Flow<List<Story>>
 
     @Query("select * from stories where stories.id = :id")
-    fun getById(id: Int): Story?
+    fun getById(id: Int): Flow<Story?>
 
     @Query("select * from stories where stories.user_id = :userId")
     fun getByUserId(userId: Int): Flow<List<Story>>

app/src/main/java/com/example/mobileapp/database/dao/UserDao.kt

@@ -15,7 +15,10 @@ interface UserDao {
     fun getAll():Flow<List<User>>
 
     @Query("select * from users where users.id = :id")
-    fun getById(id: Int): User?
+    suspend fun getById(id: Int): User?
+
+    @Query("select * from users where users.login = :login")
+    suspend fun getByLogin(login: String): User?
 
     @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun insert(user: User)

app/src/main/java/com/example/mobileapp/database/repositories/MailRepository.kt

@@ -0,0 +1,16 @@
+package com.example.mobileapp.database.repositories
+
+import com.example.mobileapp.database.entities.Mail
+import kotlinx.coroutines.flow.Flow
+
+interface MailRepository {
+    fun getAllMails(): Flow<List<Mail>>
+
+    fun getMail(id: Int):  Flow<Mail?>
+
+    suspend fun insertMail(mail: Mail)
+
+    suspend fun updateMail(mail: Mail)
+
+    suspend fun deleteMail(mail: Mail)
+}

app/src/main/java/com/example/mobileapp/database/repositories/OfflineMailRepository.kt

@@ -0,0 +1,17 @@
+package com.example.mobileapp.database.repositories
+
+import com.example.mobileapp.database.dao.MailDao
+import com.example.mobileapp.database.entities.Mail
+import kotlinx.coroutines.flow.Flow
+
+class OfflineMailRepository(private val mailDao: MailDao): MailRepository {
+    override fun getAllMails(): Flow<List<Mail>> = mailDao.getAll()
+
+    override fun getMail(id: Int):  Flow<Mail?> = mailDao.getById(id)
+
+    override suspend fun insertMail(mail: Mail) = mailDao.insert(mail)
+
+    override suspend fun updateMail(mail: Mail) = mailDao.update(mail)
+
+    override suspend fun deleteMail(mail: Mail) = mailDao.delete(mail)
+}

app/src/main/java/com/example/mobileapp/database/repositories/OfflineStoryRepository.kt

@@ -0,0 +1,19 @@
+package com.example.mobileapp.database.repositories
+
+import com.example.mobileapp.database.dao.StoryDao
+import com.example.mobileapp.database.entities.Story
+import kotlinx.coroutines.flow.Flow
+
+class OfflineStoryRepository(private val storyDao: StoryDao): StoryRepository {
+    override fun getAllStories(): Flow<List<Story>> = storyDao.getAll()
+
+    override fun getStoriesByUserId(userId: Int): Flow<List<Story>> = storyDao.getByUserId(userId)
+
+    override fun getStoryById(id: Int):  Flow<Story?> = storyDao.getById(id)
+
+    override suspend fun insertStory(story: Story) = storyDao.insert(story)
+
+    override suspend fun updateStory(story: Story) = storyDao.update(story)
+
+    override suspend fun deleteStory(story: Story) = storyDao.delete(story)
+}

app/src/main/java/com/example/mobileapp/database/repositories/OfflineUserRepository.kt

@@ -0,0 +1,19 @@
+package com.example.mobileapp.database.repositories
+
+import com.example.mobileapp.database.dao.UserDao
+import com.example.mobileapp.database.entities.User
+import kotlinx.coroutines.flow.Flow
+
+class OfflineUserRepository(private val userDao: UserDao): UserRepository {
+    override fun getAllUsers(): Flow<List<User>> = userDao.getAll()
+
+    override suspend fun getUser(id: Int):  User? = userDao.getById(id)
+
+    override suspend fun getUserByLogin(login: String): User? = userDao.getByLogin(login)
+
+    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)
+}

app/src/main/java/com/example/mobileapp/database/repositories/StoryRepository.kt

@@ -0,0 +1,18 @@
+package com.example.mobileapp.database.repositories
+
+import com.example.mobileapp.database.entities.Story
+import kotlinx.coroutines.flow.Flow
+
+interface StoryRepository {
+    fun getAllStories(): Flow<List<Story>>
+
+    fun getStoriesByUserId(userId: Int): Flow<List<Story>>
+
+    fun getStoryById(id: Int):  Flow<Story?>
+
+    suspend fun insertStory(story: Story)
+
+    suspend fun updateStory(story: Story)
+
+    suspend fun deleteStory(story: Story)
+}

app/src/main/java/com/example/mobileapp/database/repositories/UserRepository.kt

@@ -0,0 +1,18 @@
+package com.example.mobileapp.database.repositories
+
+import com.example.mobileapp.database.entities.User
+import kotlinx.coroutines.flow.Flow
+
+interface UserRepository {
+    fun getAllUsers(): Flow<List<User>>
+
+    suspend fun getUser(id: Int):  User?
+
+    suspend fun getUserByLogin(login: String): User?
+
+    suspend fun insertUser(user: User)
+
+    suspend fun updateUser(user: User)
+
+    suspend fun deleteUser(user: User)
+}

app/src/main/java/com/example/mobileapp/database/viewmodels/MailViewModel.kt

@@ -0,0 +1,26 @@
+package com.example.mobileapp.database.viewmodels
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.mobileapp.database.entities.Mail
+import com.example.mobileapp.database.repositories.MailRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.launch
+
+class MailViewModel(private val mailRepository: MailRepository): ViewModel() {
+    val getAllMails = mailRepository.getAllMails()
+
+    fun getMail(id: Int):  Flow<Mail?> = mailRepository.getMail(id)
+
+    fun insertMail(mail: Mail) = viewModelScope.launch {
+        mailRepository.insertMail(mail)
+    }
+
+    fun updateMail(mail: Mail) = viewModelScope.launch {
+        mailRepository.updateMail(mail)
+    }
+
+    fun deleteMail(mail: Mail) = viewModelScope.launch {
+        mailRepository.deleteMail(mail)
+    }
+}

app/src/main/java/com/example/mobileapp/database/viewmodels/MobileAppViewModelProvider.kt

@@ -0,0 +1,24 @@
+package com.example.mobileapp.database.viewmodels
+
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewmodel.CreationExtras
+import androidx.lifecycle.viewmodel.initializer
+import androidx.lifecycle.viewmodel.viewModelFactory
+import com.example.mobileapp.MobileApp
+
+object MobileAppViewModelProvider {
+    val Factory = viewModelFactory {
+        initializer {
+            MailViewModel(app().container.mailRepository)
+        }
+        initializer {
+            StoryViewModel(app().container.storyRepository)
+        }
+        initializer {
+            UserViewModel(app().container.userRepository)
+        }
+    }
+}
+
+fun CreationExtras.app(): MobileApp =
+    (this[ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY] as MobileApp)

app/src/main/java/com/example/mobileapp/database/viewmodels/StoryViewModel.kt

@@ -0,0 +1,29 @@
+package com.example.mobileapp.database.viewmodels
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.mobileapp.database.entities.Story
+import com.example.mobileapp.database.repositories.StoryRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.launch
+
+class StoryViewModel(private val storyRepository: StoryRepository): ViewModel() {
+
+    val getAllStories = storyRepository.getAllStories()
+
+    fun getStoryById(id: Int): Flow<Story?> = storyRepository.getStoryById(id)
+
+    fun getStoriesByUserId(userId: Int): Flow<List<Story>> = storyRepository.getStoriesByUserId(userId)
+
+    fun insertStory(story: Story) = viewModelScope.launch {
+        storyRepository.insertStory(story)
+    }
+
+    fun updateStory(story: Story) = viewModelScope.launch {
+        storyRepository.updateStory(story)
+    }
+
+    fun deleteStory(story: Story) = viewModelScope.launch {
+        storyRepository.deleteStory(story)
+    }
+}

app/src/main/java/com/example/mobileapp/database/viewmodels/UserViewModel.kt

@@ -0,0 +1,53 @@
+package com.example.mobileapp.database.viewmodels
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.mobileapp.GlobalUser
+import com.example.mobileapp.database.entities.User
+import com.example.mobileapp.database.repositories.UserRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.launch
+
+class UserViewModel(private val userRepository: UserRepository): ViewModel() {
+    val getAllUsers = userRepository.getAllUsers()
+
+    suspend fun getUser(id: Int): User? = userRepository.getUser(id)
+
+    fun updateUser(user: User) = viewModelScope.launch {
+        userRepository.updateUser(user)
+    }
+
+    fun deleteUser(user: User) = viewModelScope.launch {
+        userRepository.deleteUser(user)
+    }
+
+    fun regUser(user: User) = viewModelScope.launch {
+        val globalUser = userRepository.getUserByLogin(user.login)
+        globalUser?.let {
+            return@launch
+        } ?: run {
+            if(user.password.isEmpty()){
+                return@launch
+            }
+
+            if(user.email.isEmpty() || !isValidEmail(user.email)){
+                return@launch
+            }
+            userRepository.insertUser(user)
+            GlobalUser.getInstance().setUser(userRepository.getUserByLogin(user.login))
+        }
+    }
+
+    fun authUser(user: User) = viewModelScope.launch {
+        val globalUser = userRepository.getUserByLogin(user.login)
+        globalUser?.let {
+            if (user.password.isNotEmpty() && user.password == globalUser.password){
+                GlobalUser.getInstance().setUser(globalUser)
+            }
+        }
+    }
+
+    private fun isValidEmail(email: String): Boolean {
+        return android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()
+    }
+}

app/src/main/java/com/example/mobileapp/screens/Authorization.kt

@@ -8,7 +8,9 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -17,31 +19,32 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import com.example.mobileapp.R
+import com.example.mobileapp.components.ActiveButton
 import com.example.mobileapp.components.NavigationButton
 import com.example.mobileapp.components.PasswordInputField
 import com.example.mobileapp.components.PlaceholderInputField
 import com.example.mobileapp.database.MobileAppDataBase
 import com.example.mobileapp.database.entities.User
+import com.example.mobileapp.database.viewmodels.MobileAppViewModelProvider
+import com.example.mobileapp.database.viewmodels.UserViewModel
 import com.example.mobileapp.ui.theme.ButtonColor1
 import com.example.mobileapp.ui.theme.ButtonColor2
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 @Composable
-fun Authorization(navController: NavHostController){
-    val context = LocalContext.current
-    val users = remember { mutableStateListOf<User>() }
+fun Authorization(navController: NavHostController,
+                  userViewModel: UserViewModel = viewModel(
+                      factory = MobileAppViewModelProvider.Factory
+                  )) {
+    val users = userViewModel.getAllUsers.collectAsState(emptyList()).value
+
+    val login = remember { mutableStateOf("") }
+    val password = remember { mutableStateOf("") }
 
-    LaunchedEffect(Unit) {
-        withContext(Dispatchers.IO) {
-            MobileAppDataBase.getInstance(context).userDao().getAll().collect { data ->
-                users.clear()
-                users.addAll(data)
-            }
-        }
-    }
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -53,13 +56,26 @@ fun Authorization(navController: NavHostController){
             contentDescription = "login",
             contentScale = ContentScale.Crop,
             modifier = Modifier
-                .size(512.dp)
+                .size(448.dp)
                 .padding(8.dp)
                 .align(Alignment.CenterHorizontally))
-        PlaceholderInputField(label = "Логин", isSingleLine = true, onTextChanged = {})
-        PasswordInputField(label = "Пароль", onPasswordChanged = {})
-        NavigationButton(navController = navController, destination = "main", label = "Вход",
-            backgroundColor = ButtonColor2, textColor = Color.White)
+        PlaceholderInputField(label = "Логин", isSingleLine = true, onTextChanged = {newlogin ->
+            login.value = newlogin
+        })
+        PasswordInputField(label = "Пароль", onPasswordChanged = {newpassword ->
+            password.value = newpassword
+        })
+        ActiveButton(label = "Вход", backgroundColor = ButtonColor2,
+            textColor = Color.White, onClickAction = {
+                userViewModel.authUser(
+                    User(
+                        login = login.value,
+                        password = password.value,
+                        email = String()
+                    )
+                )
+                navController.navigate("main")
+        })
         NavigationButton(navController = navController, destination = "registration", label = "Регистрация",
             backgroundColor = ButtonColor1, textColor = Color.Black)
     }

app/src/main/java/com/example/mobileapp/screens/EditScreens.kt

@@ -16,7 +16,8 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
@@ -27,22 +28,29 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
+import com.example.mobileapp.GlobalUser
 import com.example.mobileapp.R
 import com.example.mobileapp.components.ActiveButton
 import com.example.mobileapp.components.NavigationButton
-import com.example.mobileapp.components.PasswordInputField
 import com.example.mobileapp.components.PlaceholderInputField
 import com.example.mobileapp.database.MobileAppDataBase
 import com.example.mobileapp.database.entities.Mail
 import com.example.mobileapp.database.entities.Story
+import com.example.mobileapp.database.viewmodels.MailViewModel
+import com.example.mobileapp.database.viewmodels.MobileAppViewModelProvider
+import com.example.mobileapp.database.viewmodels.StoryViewModel
 import com.example.mobileapp.ui.theme.ButtonColor1
 import com.example.mobileapp.ui.theme.ButtonColor2
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 @Composable
-fun EditStoryScreen(navController: NavHostController, storyId: Int? = null) {
+fun EditStoryScreen(navController: NavHostController, storyId: Int? = null,
+                    storyViewModel: StoryViewModel = viewModel(
+                        factory = MobileAppViewModelProvider.Factory
+                    )) {
     val context = LocalContext.current
 
     val cover = remember { mutableStateOf<Bitmap>(BitmapFactory.decodeResource(context.resources, R.drawable.editplaceholder)) }
@@ -58,7 +66,6 @@ fun EditStoryScreen(navController: NavHostController, storyId: Int? = null) {
         if (Build.VERSION.SDK_INT < 28) {
             cover.value = MediaStore.Images
                 .Media.getBitmap(context.contentResolver, imageData.value)
-
         } else {
             val source = ImageDecoder
                 .createSource(context.contentResolver, imageData.value!!)
@@ -67,45 +74,10 @@ fun EditStoryScreen(navController: NavHostController, storyId: Int? = null) {
     }
 
     storyId?.let{
-        LaunchedEffect(Unit) {
-            withContext(Dispatchers.IO) {
-                val story = MobileAppDataBase.getInstance(context).storyDao().getById(storyId!!)
-                cover.value = story!!.cover
-                title.value = story!!.title
-                description.value = story!!.description
-            }
-        }
-    }
-
-    val edit = remember { mutableStateOf(false) }
-    if (edit.value){
-        LaunchedEffect(Unit) {
-            withContext(Dispatchers.IO) {
-                storyId?.let {
-                    MobileAppDataBase.getInstance(context).storyDao()
-                        .update(
-                            Story(
-                                id = storyId,
-                                title = title.value,
-                                description = description.value,
-                                cover = cover.value,
-                                userId = 1)
-                        )
-
-                } ?: run {
-                    MobileAppDataBase.getInstance(context).storyDao()
-                        .insert(
-                            Story(
-                                title = title.value,
-                                description = description.value,
-                                cover = cover.value,
-                                userId = 1)
-                        )
-                }
-            }
-        }
-        edit.value = !edit.value
-        navController.navigate("story")
+        val story by storyViewModel.getStoryById(storyId).collectAsState(null)
+        cover.value = story!!.cover
+        title.value = story!!.title
+        description.value = story!!.description
     }
 
     Column(
@@ -134,7 +106,27 @@ fun EditStoryScreen(navController: NavHostController, storyId: Int? = null) {
             description.value = newDescription
         })
         ActiveButton(label = "Сохранить", backgroundColor = ButtonColor1, textColor = Color.Black, onClickAction = {
-            edit.value = !edit.value
+            storyId?.let {
+                storyViewModel.updateStory(
+                    Story(
+                        id = storyId,
+                        cover = cover.value,
+                        title = title.value,
+                        description = description.value,
+                        userId = GlobalUser.getInstance().getUser()?.id!!
+                    )
+                )
+            } ?: run {
+                storyViewModel.insertStory(
+                    Story(
+                        cover = cover.value,
+                        title = title.value,
+                        description = description.value,
+                        userId = GlobalUser.getInstance().getUser()?.id!!
+                    )
+                )
+            }
+            navController.navigate("story")
         })
         NavigationButton(navController = navController, destination = "story", label = "Назад",
             backgroundColor = ButtonColor2, textColor = Color.White)
@@ -142,22 +134,12 @@ fun EditStoryScreen(navController: NavHostController, storyId: Int? = null) {
 }
 
 @Composable
-fun EditMailScreen(navController: NavHostController) {
-    val context = LocalContext.current
-
+fun EditMailScreen(navController: NavHostController,
+                   mailViewModel: MailViewModel = viewModel(
+                       factory = MobileAppViewModelProvider.Factory
+                   )) {
     val message = remember { mutableStateOf("") }
 
-    val create = remember { mutableStateOf(false) }
-    if(create.value){
-        LaunchedEffect(Unit) {
-            withContext(Dispatchers.IO) {
-                MobileAppDataBase.getInstance(context).mailDao()
-                    .insert(Mail(message = message.value, userId = 2))
-            }
-        }
-        create.value = !create.value
-        navController.navigate("mail")
-    }
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -176,7 +158,13 @@ fun EditMailScreen(navController: NavHostController) {
             message.value = newmessage
         })
         ActiveButton(label = "Сохранить", backgroundColor = ButtonColor1, textColor = Color.Black, onClickAction = {
-            create.value = !create.value
+            mailViewModel.insertMail(
+                Mail(
+                    message = message.value,
+                    userId = GlobalUser.getInstance().getUser()?.id!!
+                )
+            )
+            navController.navigate("mail")
         })
         NavigationButton(navController = navController, destination = "mail", label = "Назад",
             backgroundColor = ButtonColor2, textColor = Color.White)

app/src/main/java/com/example/mobileapp/screens/ListMailScreen.kt

@@ -5,32 +5,29 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import com.example.mobileapp.components.DataListScroll
 import com.example.mobileapp.database.MobileAppDataBase
 import com.example.mobileapp.database.entities.Mail
+import com.example.mobileapp.database.viewmodels.MailViewModel
+import com.example.mobileapp.database.viewmodels.MobileAppViewModelProvider
 import com.example.mobileapp.ui.theme.BackgroundItem1
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.withContext
 
 @Composable
-fun ListMailScreen(navController: NavHostController){
-
-    val context = LocalContext.current
-    val mails = remember { mutableStateListOf<Mail>() }
-
-    LaunchedEffect(Unit) {
-        withContext(Dispatchers.IO) {
-            MobileAppDataBase.getInstance(context).mailDao().getAll().collect { data ->
-                mails.clear()
-                mails.addAll(data)
-            }
-        }
-    }
+fun ListMailScreen(navController: NavHostController,
+                   mailViewModel: MailViewModel = viewModel(
+                       factory = MobileAppViewModelProvider.Factory
+                   )) {
+    val mails = mailViewModel.getAllMails.collectAsState(emptyList()).value
 
     Column(
         modifier = Modifier

app/src/main/java/com/example/mobileapp/screens/ListStoryScreen.kt

@@ -1,42 +1,32 @@
 package com.example.mobileapp.screens
 
 import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import com.example.mobileapp.components.DataListScroll
-import com.example.mobileapp.components.NavBar
 import com.example.mobileapp.database.MobileAppDataBase
 import com.example.mobileapp.database.entities.Story
+import com.example.mobileapp.database.viewmodels.MobileAppViewModelProvider
+import com.example.mobileapp.database.viewmodels.StoryViewModel
 import com.example.mobileapp.ui.theme.BackgroundItem1
-import com.example.mobileapp.ui.theme.BackgroundItem2
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 @Composable
-fun ListDataScreen(navController: NavHostController){
-
-    val context = LocalContext.current
-    val stories = remember { mutableStateListOf<Story>() }
-
-    LaunchedEffect(Unit) {
-        withContext(Dispatchers.IO) {
-            MobileAppDataBase.getInstance(context).storyDao().getAll().collect { data ->
-                stories.clear()
-                stories.addAll(data)
-            }
-        }
-    }
+fun ListStoryScreen(navController: NavHostController,
+                    storyViewModel: StoryViewModel = viewModel(
+                        factory = MobileAppViewModelProvider.Factory
+                    )) {
+    val stories = storyViewModel.getAllStories.collectAsState(emptyList()).value
 
     Column(
         modifier = Modifier

app/src/main/java/com/example/mobileapp/screens/Registration.kt

@@ -7,22 +7,37 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import com.example.mobileapp.R
+import com.example.mobileapp.components.ActiveButton
 import com.example.mobileapp.components.NavigationButton
 import com.example.mobileapp.components.PasswordInputField
 import com.example.mobileapp.components.PlaceholderInputField
+import com.example.mobileapp.database.entities.User
+import com.example.mobileapp.database.viewmodels.MobileAppViewModelProvider
+import com.example.mobileapp.database.viewmodels.UserViewModel
 import com.example.mobileapp.ui.theme.ButtonColor1
 import com.example.mobileapp.ui.theme.ButtonColor2
 
 @Composable
-fun Registration(navController: NavHostController){
+fun Registration(navController: NavHostController,
+                 userViewModel: UserViewModel = viewModel(
+                     factory = MobileAppViewModelProvider.Factory
+                 )) {
+    val login = remember { mutableStateOf("") }
+    val email = remember { mutableStateOf("") }
+    val password = remember { mutableStateOf("") }
+    val repeatepassword = remember { mutableStateOf("") }
+
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -34,15 +49,34 @@ fun Registration(navController: NavHostController){
             contentDescription = "registration",
             contentScale = ContentScale.Crop,
             modifier = Modifier
-                .size(384.dp)
+                .size(320.dp)
                 .padding(8.dp)
                 .align(Alignment.CenterHorizontally))
-        PlaceholderInputField(label = "Логин", isSingleLine = true, onTextChanged = {})
-        PlaceholderInputField(label = "Email", isSingleLine = true, onTextChanged = {})
-        PasswordInputField(label = "Пароль", onPasswordChanged = {})
-        PasswordInputField(label = "Пароль ещё раз", onPasswordChanged = {})
-        NavigationButton(navController = navController, destination = "main",
-            label = "Зарегистрироваться", backgroundColor = ButtonColor2, textColor = Color.White)
+        PlaceholderInputField(label = "Логин", isSingleLine = true, onTextChanged = {newlogin ->
+            login.value = newlogin
+        })
+        PlaceholderInputField(label = "Email", isSingleLine = true, onTextChanged = {newemail ->
+            email.value = newemail
+        })
+        PasswordInputField(label = "Пароль", onPasswordChanged = {newpassword ->
+            password.value = newpassword
+        })
+        PasswordInputField(label = "Пароль ещё раз", onPasswordChanged = {newpassword ->
+            repeatepassword.value = newpassword
+        })
+        ActiveButton(label = "Зарегистрироваться", backgroundColor = ButtonColor2,
+            textColor = Color.White, onClickAction = {
+                if (password.value == repeatepassword.value){
+                    userViewModel.regUser(
+                        User(
+                            login = login.value,
+                            password = password.value,
+                            email = email.value
+                        )
+                    )
+                }
+                navController.navigate("main")
+        })
         NavigationButton(navController = navController, destination = "authorization",
             label = "Назад", backgroundColor = ButtonColor1, textColor = Color.Black)
     }