Course work: implement full performance CRUD

app/build.gradle.kts

@@ -67,7 +67,8 @@ dependencies {
     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"
@@ -94,4 +95,7 @@ dependencies {
     androidTestImplementation("androidx.compose.ui:ui-test-junit4")
     debugImplementation("androidx.compose.ui:ui-tooling")
     debugImplementation("androidx.compose.ui:ui-test-manifest")
+
+    implementation("javax.inject:javax.inject:1")
+    implementation("androidx.compose.runtime:runtime-livedata")
 }

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

@@ -1,8 +1,11 @@
 package com.example.mobile_labs.api
 
+import android.util.Log
+import com.example.mobile_labs.api.models.Credentials
 import com.example.mobile_labs.api.models.EventRemote
 import com.example.mobile_labs.api.models.PerformanceRemote
 import com.example.mobile_labs.api.models.PersonRemote
+import com.example.mobile_labs.api.models.Token
 import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
 import kotlinx.serialization.json.Json
 import okhttp3.MediaType.Companion.toMediaType
@@ -16,53 +19,96 @@ import retrofit2.http.POST
 import retrofit2.http.PUT
 import retrofit2.http.Path
 import retrofit2.http.Query
+import java.util.concurrent.TimeUnit
 
 interface MyServerService {
-    @GET("persons")
+    @GET("api/persons")
     suspend fun getPeople(
         @Query("_page") page: Int,
         @Query("_limit") limit: Int,
     ): List<PersonRemote>
 
-    @GET("performances")
+    @GET("api/performances")
     suspend fun getPerformances(
         @Query("_page") page: Int,
         @Query("_limit") limit: Int,
     ): List<PerformanceRemote>
 
-    @GET("events")
+    @GET("api/events")
     suspend fun getEvents(
         @Query("_page") page: Int,
         @Query("_limit") limit: Int,
     ): List<EventRemote>
 
-    @GET("performances/{id}")
+    @GET("api/performances/{id}")
     suspend fun getPerformance(
         @Path("id") id: Int,
     ): PerformanceRemote
 
-    @GET("persons/{id}")
+    @GET("api/persons/{id}")
     suspend fun getPerson(
         @Path("id") id: Int,
     ): PersonRemote
 
-    @GET("events/{id}")
+    @GET("api/events/{id}")
     suspend fun getEvent(
         @Path("id") id: Int,
     ): EventRemote
 
+    @POST("api/login")
+    suspend fun login(
+        @Body credentials: Credentials
+    ): Token
+
+    @POST("api/performances")
+    suspend fun createPerformance(
+        @Body performance: PerformanceRemote,
+    )
+
+    @PUT("api/performances/{id}")
+    suspend fun updatePerformance(
+        @Path("id") id: Int,
+        @Body student: PerformanceRemote,
+    )
+
+    @DELETE("api/performances/{id}")
+    suspend fun deletePerformance(
+        @Path("id") id: Int,
+    )
+
     companion object {
-        private const val BASE_URL = "http://10.0.2.2:26000/"
+        private const val BASE_URL = "http://10.0.2.2:8000/"
 
         @Volatile
         private var INSTANCE: MyServerService? = null
 
+        private var _token: String = ""
+
         fun getInstance(): MyServerService {
             return INSTANCE ?: synchronized(this) {
                 val logger = HttpLoggingInterceptor()
                 logger.level = HttpLoggingInterceptor.Level.BASIC
                 val client = OkHttpClient.Builder()
+                    .connectTimeout(1, TimeUnit.DAYS)
+                    .readTimeout(1, TimeUnit.DAYS)
+                    .writeTimeout(1, TimeUnit.DAYS)
+                    .retryOnConnectionFailure(false)
+                    .callTimeout(1, TimeUnit.DAYS)
                     .addInterceptor(logger)
+                    .addInterceptor {
+                        val originalRequest = it.request()
+                        if (_token.isEmpty()) {
+                            it.proceed(originalRequest)
+                        } else {
+                            it.proceed(
+                                originalRequest
+                                    .newBuilder()
+                                    .header("Authorization", "Bearer $_token")
+                                    .method(originalRequest.method, originalRequest.body)
+                                    .build()
+                            )
+                        }
+                    }
                     .build()
                 return Retrofit.Builder()
                     .baseUrl(BASE_URL)
@@ -73,5 +119,13 @@ interface MyServerService {
                     .also { INSTANCE = it }
             }
         }
+
+        fun getToken(): String {
+            return _token
+        }
+
+        fun setToken(token: String) {
+            _token = token
+        }
     }
 }

app/src/main/java/com/example/mobile_labs/api/events/EventRemoteMediator.kt

@@ -73,6 +73,9 @@ class EventRemoteMediator(
                         nextKey = nextKey
                     )
                 }
+                dbRemoteKeyRepository.deleteRemoteKey(RemoteKeyType.EVENT)
+                dbEventRepository.clearEvents()
+
                 performanceRestRepository.getAllPerformances()
                 dbRemoteKeyRepository.createRemoteKeys(keys)
                 dbEventRepository.insertEvents(events)

app/src/main/java/com/example/mobile_labs/api/models/Credentials.kt

@@ -0,0 +1,9 @@
+package com.example.mobile_labs.api.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Credentials(
+    val email: String = "",
+    val password: String = "",
+)

app/src/main/java/com/example/mobile_labs/api/models/EventRemote.kt

@@ -10,16 +10,16 @@ import java.time.LocalDate
 data class EventRemote(
     val id: Int = 0,
     val date: String = "",
-    val performanceId: Int = 0,
+    val performance_id: Int = 0,
 )
 
 fun EventRemote.toEvent(): Event = Event(
     id,
     LocalDate.parse(date),
-    performanceId
+    performance_id
 )
 
 suspend fun EventRemote.toEventWithPerformance(service: MyServerService): EventWithPerformance = EventWithPerformance(
     service.getEvent(id).toEvent(),
-    service.getPerformance(performanceId).toPerformance()
+    service.getPerformance(performance_id).toPerformance()
 )

app/src/main/java/com/example/mobile_labs/api/models/PerformanceRemote.kt

@@ -11,10 +11,10 @@ data class PerformanceRemote(
     val id: Int = 0,
     val title: String = "",
     val description: String = "",
-    val authorId: Int = 0,
-    val directorId: Int = 0,
-    val imageURL: String = "",
-    val previewImageURL: String = "",
+    val author_id: Int = 0,
+    val director_id: Int = 0,
+    val image_url: String = "",
+    val preview_image_url: String = "",
     val actors: List<Int> = listOf()
 )
 
@@ -22,10 +22,10 @@ fun PerformanceRemote.toPerformance(): Performance = Performance(
     id,
     title,
     description,
-    authorId,
-    directorId,
-    imageURL,
-    previewImageURL
+    author_id,
+    director_id,
+    image_url,
+    preview_image_url
 )
 
 suspend fun PerformanceRemote.toPerformanceWithPeople(service: MyServerService): PerformanceWithPeople {
@@ -36,8 +36,18 @@ suspend fun PerformanceRemote.toPerformanceWithPeople(service: MyServerService):
 
     return PerformanceWithPeople(
         service.getPerformance(id).toPerformance(),
-        service.getPerson(authorId).toPerson(),
-        service.getPerson(directorId).toPerson(),
+        service.getPerson(author_id).toPerson(),
+        service.getPerson(director_id).toPerson(),
         actorsList.toList()
         )
 }
+
+fun Performance.toPerformanceRemote(): PerformanceRemote = PerformanceRemote(
+    performance_uid!!,
+    title,
+    description,
+    authorId!!,
+    directorId!!,
+    imageURL,
+    previewImageURL
+)

app/src/main/java/com/example/mobile_labs/api/models/PersonRemote.kt

@@ -10,12 +10,12 @@ data class PersonRemote(
     val id: Int = 0,
     val last_name: String = "",
     val first_name: String = "",
-    val imageURL: String = ""
+    val image_url: String = ""
 )
 
 fun PersonRemote.toPerson(): Person = Person(
     id,
     last_name,
     first_name,
-    imageURL
+    image_url
 )

app/src/main/java/com/example/mobile_labs/api/models/Token.kt

@@ -0,0 +1,8 @@
+package com.example.mobile_labs.api.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Token(
+    val token: String
+)

app/src/main/java/com/example/mobile_labs/api/people/PeopleRemoteMediator.kt

@@ -71,6 +71,9 @@ class PeopleRemoteMediator(
                         nextKey = nextKey
                     )
                 }
+
+                dbRemoteKeyRepository.deleteRemoteKey(RemoteKeyType.PERSON)
+                dbPersonRepository.clearPeople()
                 dbRemoteKeyRepository.createRemoteKeys(keys)
                 dbPersonRepository.insertPeople(people)
             }

app/src/main/java/com/example/mobile_labs/api/performance/PerformanceRemoteMediator.kt

@@ -1,9 +1,11 @@
 package com.example.mobile_labs.api.performance
 
+import android.util.Log
 import androidx.paging.ExperimentalPagingApi
 import androidx.paging.LoadType
 import androidx.paging.PagingState
 import androidx.paging.RemoteMediator
+import androidx.paging.log
 import androidx.room.withTransaction
 import com.example.mobile_labs.api.MyServerService
 import com.example.mobile_labs.api.models.toPerformance
@@ -73,6 +75,9 @@ class PerformanceRemoteMediator(
                         nextKey = nextKey
                     )
                 }
+                dbRemoteKeyRepository.deleteRemoteKey(RemoteKeyType.PERFORMANCE)
+                dbPerformanceRepository.clearPerformances()
+
                 personRestRepository.getAllPeople()
                 dbRemoteKeyRepository.createRemoteKeys(keys)
                 dbPerformanceRepository.insertPerformances(performances)

app/src/main/java/com/example/mobile_labs/api/performance/RestPerformanceRepository.kt

@@ -6,6 +6,7 @@ import androidx.paging.PagingConfig
 import androidx.paging.PagingData
 import com.example.mobile_labs.api.MyServerService
 import com.example.mobile_labs.api.models.toPerformance
+import com.example.mobile_labs.api.models.toPerformanceRemote
 import com.example.mobile_labs.api.models.toPerformanceWithPeople
 import com.example.mobile_labs.api.people.RestPersonRepository
 import com.example.mobile_labs.common.AppDataContainer
@@ -50,4 +51,16 @@ class RestPerformanceRepository(
 
     override suspend fun getPerformance(uid: Int): PerformanceWithPeople =
         service.getPerformance(uid).toPerformanceWithPeople(service)
+
+    override suspend fun insertPerformance(performance: Performance) {
+        service.createPerformance(performance.toPerformanceRemote())
+    }
+
+    override suspend fun updatePerformance(performance: Performance) {
+        service.updatePerformance(performance.performance_uid!!, performance.toPerformanceRemote())
+    }
+
+    override suspend fun deletePerformance(performance: Performance) {
+        service.deletePerformance(performance.performance_uid !!)
+    }
 }

app/src/main/java/com/example/mobile_labs/common/AppContainer.kt

@@ -64,6 +64,6 @@ class AppDataContainer(val context: Context) : AppContainer {
 
     companion object {
         const val TIMEOUT = 5000L
-        const val LIMIT = 3
+        const val LIMIT = 20
     }
 }

app/src/main/java/com/example/mobile_labs/common/AppViewModelProvider.kt

@@ -7,7 +7,10 @@ import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
 import com.example.mobile_labs.TheatreApplication
 import com.example.mobile_labs.ui.event.list.EventListViewModel
+import com.example.mobile_labs.ui.login.LoginViewModel
+import com.example.mobile_labs.ui.performance.list.AdminPerformanceListViewModel
 import com.example.mobile_labs.ui.performance.list.PerformanceListViewModel
+import com.example.mobile_labs.ui.performance.view.AdminPerformanceViewModel
 import com.example.mobile_labs.ui.performance.view.PerformanceViewModel
 import com.example.mobile_labs.ui.person.list.PeopleListViewModel
 
@@ -25,6 +28,15 @@ object AppViewModelProvider {
         initializer {
             PerformanceViewModel(this.createSavedStateHandle(), theatreApplication().container.performanceRestRepository)
         }
+        initializer {
+            LoginViewModel()
+        }
+        initializer {
+            AdminPerformanceListViewModel(theatreApplication().container.performanceRestRepository)
+        }
+        initializer {
+            AdminPerformanceViewModel(this.createSavedStateHandle(), theatreApplication().container.performanceRestRepository)
+        }
     }
 }
 

app/src/main/java/com/example/mobile_labs/common/PerformanceRepository.kt

@@ -8,4 +8,7 @@ import kotlinx.coroutines.flow.Flow
 interface PerformanceRepository {
     fun getAllPerformances(): Flow<PagingData<Performance>>
     suspend fun getPerformance(uid: Int): PerformanceWithPeople
+    suspend fun insertPerformance(performance: Performance)
+    suspend fun updatePerformance(performance: Performance)
+    suspend fun deletePerformance(performance: Performance)
 }

app/src/main/java/com/example/mobile_labs/database/performance/repository/OfflinePerformanceRepository.kt

@@ -24,11 +24,11 @@ class OfflinePerformanceRepository(private val performanceDao: PerformanceDao) :
     ).flow
     override suspend fun getPerformance(uid: Int): PerformanceWithPeople = performanceDao.getByUid(uid).first();
 
-    suspend fun insertPerformance(performance: Performance) = performanceDao.insert(performance);
+    override suspend fun insertPerformance(performance: Performance) = performanceDao.insert(performance);
 
-    suspend fun updatePerformance(performance: Performance) = performanceDao.update(performance);
+    override suspend fun updatePerformance(performance: Performance) = performanceDao.update(performance);
 
-    suspend fun deletePerformance(performance: Performance) = performanceDao.delete(performance);
+    override suspend fun deletePerformance(performance: Performance) = performanceDao.delete(performance);
 
     suspend fun clearPerformances() = performanceDao.deleteAll()
 

app/src/main/java/com/example/mobile_labs/ui/login/Login.kt

@@ -0,0 +1,116 @@
+package com.example.mobile_labs.ui.login
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TextField
+import androidx.compose.runtime.*
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.*
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.unit.*
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavHostController
+import com.example.mobile_labs.R
+import com.example.mobile_labs.common.AppViewModelProvider
+import com.example.mobile_labs.ui.navigation.Screen
+
+@Composable
+@OptIn(ExperimentalMaterial3Api::class)
+fun Login(
+    navController: NavHostController,
+    viewModel: LoginViewModel = viewModel(factory = AppViewModelProvider.Factory)
+) {
+    val success = viewModel.successState.observeAsState().value
+
+    val login = remember { mutableStateOf(TextFieldValue(""))}
+    val password = remember { mutableStateOf(TextFieldValue(""))}
+
+    if (success == false) {
+        AlertDialog(
+            title = {
+                Text(
+                    text = "Ошибка авторизации",
+                    fontWeight = FontWeight.Bold,
+                    fontSize = 20.sp
+                )
+            },
+            text = {
+                Text(
+                    text = "Неверный логин или пароль",
+                    fontWeight = FontWeight.Normal,
+                    fontSize = 16.sp
+                )
+            },
+            onDismissRequest = {
+                viewModel.calmSuccessState()
+            },
+            confirmButton = {
+                TextButton(
+                    onClick = {
+                        viewModel.calmSuccessState()
+                    }
+                ) {
+                    Text("OK")
+                }
+
+            }
+        )
+    }
+
+    Row(
+        horizontalArrangement = Arrangement.Center,
+        modifier = Modifier.fillMaxSize()
+    ) {
+        Column(
+            horizontalAlignment = Alignment.CenterHorizontally,
+            modifier = Modifier.fillMaxWidth(0.7f).fillMaxHeight().padding(vertical=100.dp)
+        ) {
+            Text(
+                text = "Вход",
+                style = TextStyle(
+                    fontSize = 40.sp,
+                    fontWeight = FontWeight(400),
+                ),
+                modifier = Modifier.fillMaxHeight(0.3f)
+            )
+            OutlinedTextField(
+                modifier = Modifier.fillMaxWidth().padding(bottom=30.dp),
+                value = login.value,
+                onValueChange = { login.value = it },
+                label = { Text(stringResource(id = R.string.login)) },
+                singleLine = true
+            )
+            OutlinedTextField(
+                modifier = Modifier.fillMaxWidth().padding(bottom=30.dp),
+                value = password.value,
+                onValueChange = { password.value = it },
+                label = { Text(stringResource(id = R.string.password)) },
+                singleLine = true
+            )
+            Button(
+                {
+                    viewModel.login(login.value.text, password.value.text, navController)
+                },
+                modifier = Modifier.padding(bottom=20.dp).fillMaxWidth(0.5f)
+            ) {
+                Text(
+                    text = "Войти",
+                    style = TextStyle(
+                        fontSize = 24.sp,
+                        fontWeight = FontWeight(400),
+                        color = Color(0xFFFFFFFF),
+                    )
+                )
+            }
+        }
+    }
+}

app/src/main/java/com/example/mobile_labs/ui/login/LoginViewModel.kt

@@ -0,0 +1,49 @@
+package com.example.mobile_labs.ui.login
+
+import android.util.Log
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.navigation.NavHostController
+import com.example.mobile_labs.api.MyServerService
+import com.example.mobile_labs.api.models.Credentials
+import com.example.mobile_labs.ui.navigation.Screen
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+class LoginViewModel : ViewModel() {
+    private val _successState = MutableLiveData<Boolean?>()
+    val successState: LiveData<Boolean?>
+        get() = _successState
+
+    fun calmSuccessState() {
+        _successState.postValue(null)
+    }
+
+    fun login(login: String, password: String, navController: NavHostController) {
+        viewModelScope.launch {
+            val token = MyServerService.getInstance().login(Credentials(login, password))
+
+            if (token.token.isEmpty()) {
+                _successState.postValue(false)
+                return@launch
+            }
+
+            MyServerService.setToken(token.token)
+
+            _successState.setValue(true)
+
+            navigate(navController)
+        }
+    }
+    fun navigate(navController: NavHostController) {
+        Screen.About.route.let {
+            navController.navigate(it) {
+                popUpTo(it) {
+                    inclusive = true
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/example/mobile_labs/ui/navigation/MainNavbar.kt

@@ -1,6 +1,7 @@
 package com.example.mobile_labs.ui.navigation
 
 import android.content.res.Configuration
+import android.util.Log
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
@@ -33,9 +34,13 @@ import androidx.navigation.compose.rememberNavController
 import androidx.navigation.navArgument
 import com.example.mobile_labs.ui.theme.Mobile_LabsTheme
 import com.example.mobile_labs.R
+import com.example.mobile_labs.api.MyServerService
 import com.example.mobile_labs.ui.about.About
 import com.example.mobile_labs.ui.event.list.EventList
+import com.example.mobile_labs.ui.login.Login
+import com.example.mobile_labs.ui.performance.list.AdminPerformanceList
 import com.example.mobile_labs.ui.performance.list.PerformanceList
+import com.example.mobile_labs.ui.performance.view.AdminPerformanceView
 import com.example.mobile_labs.ui.performance.view.PerformanceView
 import com.example.mobile_labs.ui.person.list.PeopleList
 
@@ -77,6 +82,7 @@ fun Navbar(
     modifier: Modifier = Modifier
 ) {
     NavigationBar(modifier) {
+        if (MyServerService.getToken().isBlank()) {
             Screen.bottomBarItems.forEach { screen ->
                 NavigationBarItem(
                     icon = { Icon(screen.icon, contentDescription = null) },
@@ -85,15 +91,34 @@ fun Navbar(
                     onClick = {
                         navController.navigate(screen.route) {
                             popUpTo(navController.graph.findStartDestination().id) {
-                            saveState = true
+                                saveState = false
                             }
                             launchSingleTop = true
-                        restoreState = true
+                            restoreState = false
                         }
                     }
                 )
             }
         }
+        else {
+            Screen.adminBottomBarItems.forEach { screen ->
+                NavigationBarItem(
+                    icon = { Icon(screen.icon, contentDescription = null) },
+                    label = { Text(stringResource(screen.resourceId)) },
+                    selected = currentDestination?.hierarchy?.any { it.route == screen.route } == true,
+                    onClick = {
+                        navController.navigate(screen.route) {
+                            popUpTo(navController.graph.findStartDestination().id) {
+                                saveState = false
+                            }
+                            launchSingleTop = true
+                            restoreState = false
+                        }
+                    }
+                )
+            }
+        }
+    }
 }
 
 @Composable
@@ -108,16 +133,31 @@ fun Navhost(
         modifier.padding(innerPadding)
     ) {
         composable(Screen.Schedule.route) { EventList(navController) }
-        composable(Screen.Repertoire.route) { PerformanceList(navController) }
+        composable(Screen.Repertoire.route) {
+            if (MyServerService.getToken().isNotBlank()) {
+                AdminPerformanceList(navController)
+            }
+            else {
+                PerformanceList(navController)
+            }
+        }
         composable(Screen.PeopleList.route) { PeopleList() }
         composable(Screen.About.route) {  About() }
+        if (MyServerService.getToken().isBlank()) {
+            composable(Screen.Login.route) { Login(navController) }
+        }
         composable(
             Screen.PerformanceView.route,
             arguments = listOf(navArgument("id") { type = NavType.IntType })
         ) { backStackEntry ->
+            if (MyServerService.getToken().isNotBlank()) {
+                AdminPerformanceView(navController)
+            }
+            else {
                 backStackEntry.arguments?.let { PerformanceView() }
             }
         }
+    }
 }
 
 @OptIn(ExperimentalMaterial3Api::class)

app/src/main/java/com/example/mobile_labs/ui/navigation/Screen.kt

@@ -3,12 +3,14 @@ package com.example.mobile_labs.ui.navigation
 import androidx.annotation.StringRes
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.DateRange
+import androidx.compose.material.icons.filled.Face
 import androidx.compose.material.icons.filled.Favorite
 import androidx.compose.material.icons.filled.Info
 import androidx.compose.material.icons.filled.List
 import androidx.compose.material.icons.filled.Person
 import androidx.compose.ui.graphics.vector.ImageVector
 import com.example.mobile_labs.R
+import com.example.mobile_labs.api.MyServerService
 
 enum class Screen(
     val route: String,
@@ -30,6 +32,9 @@ enum class Screen(
     ),
     About(
         "about", R.string.about_main_title, Icons.Filled.Info
+    ),
+    Login(
+        "login", R.string.login_main_title, Icons.Filled.Face
     );
 
     companion object {
@@ -38,6 +43,12 @@ enum class Screen(
             Repertoire,
             PeopleList,
             About,
+            Login
+        )
+
+        val adminBottomBarItems = listOf(
+            Repertoire,
+            About,
         )
 
         fun getItem(route: String): Screen? {

app/src/main/java/com/example/mobile_labs/ui/performance/list/AdminPerformanceList.kt

@@ -0,0 +1,261 @@
+package com.example.mobile_labs.ui.performance.list
+
+import android.content.res.Configuration
+import android.util.Log
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.spring
+import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material3.Button
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.DismissDirection
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.DismissState
+import androidx.compose.material3.DismissValue
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SwipeToDismiss
+import androidx.compose.material3.rememberDismissState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+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.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.zIndex
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import androidx.paging.PagingData
+import androidx.paging.compose.LazyPagingItems
+import androidx.paging.compose.collectAsLazyPagingItems
+import androidx.paging.compose.itemContentType
+import androidx.paging.compose.itemKey
+import coil.compose.AsyncImage
+import com.example.mobile_labs.R
+import com.example.mobile_labs.api.MyServerService
+import com.example.mobile_labs.database.performance.model.Performance
+import com.example.mobile_labs.common.AppViewModelProvider
+import com.example.mobile_labs.ui.navigation.Screen
+import com.example.mobile_labs.ui.theme.Mobile_LabsTheme
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.launch
+
+@Composable
+fun AdminPerformanceList(
+    navController: NavController,
+    viewModel: AdminPerformanceListViewModel = viewModel(factory = AppViewModelProvider.Factory)
+) {
+    val coroutineScope = rememberCoroutineScope()
+    val performanceListUiState = viewModel.performanceListUiState.collectAsLazyPagingItems()
+    Scaffold(
+        topBar = {},
+        floatingActionButton = {
+            FloatingActionButton(
+                onClick = {
+                    val route = Screen.PerformanceView.route.replace("{id}", 0.toString())
+                    navController.navigate(route)
+                },
+            ) {
+                Icon(Icons.Filled.Add, "Добавить")
+            }
+        }
+    ) { innerPadding ->
+        PerformanceList(
+            modifier = Modifier
+                .padding(innerPadding)
+                .fillMaxSize(),
+            performanceList = performanceListUiState,
+            onClick = { uid: Int ->
+                val route = Screen.PerformanceView.route.replace("{id}", uid.toString())
+                navController.navigate(route)
+            },
+            onSwipe = { performance: Performance ->
+                coroutineScope.launch {
+                    viewModel.deleteStudent(performance)
+                }
+            }
+        )
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun DismissBackground(dismissState: DismissState) {
+    val color = when (dismissState.dismissDirection) {
+        DismissDirection.StartToEnd -> Color.Transparent
+        DismissDirection.EndToStart -> Color(0xFFFF1744)
+        null -> Color.Transparent
+    }
+    val direction = dismissState.dismissDirection
+
+    Row(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(color)
+            .padding(12.dp, 8.dp),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.End
+    ) {
+        if (direction == DismissDirection.EndToStart) {
+            Icon(
+                Icons.Default.Delete,
+                contentDescription = "delete",
+                tint = Color.White
+            )
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun SwipeToDelete(
+    dismissState: DismissState,
+    performance: Performance,
+    onClick: (uid: Int) -> Unit
+) {
+    SwipeToDismiss(
+        modifier = Modifier.zIndex(1f),
+        state = dismissState,
+        directions = setOf(
+            DismissDirection.EndToStart
+        ),
+        background = {
+            DismissBackground(dismissState)
+        },
+        dismissContent = {
+            PerformanceListItem(performance = performance,
+                modifier = Modifier
+                    .padding(vertical = 7.dp)
+                    .clickable { onClick(performance.performance_uid!!) })
+        }
+    )
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun PerformanceList(
+    modifier: Modifier = Modifier,
+    performanceList: LazyPagingItems<Performance>,
+    onClick: (uid: Int) -> Unit,
+    onSwipe: (performance: Performance) -> Unit
+) {
+    Column(
+        modifier = modifier
+    ) {
+        if (performanceList.itemCount == 0) {
+            Text(
+                text = stringResource(R.string.performance_missing_description),
+                textAlign = TextAlign.Center,
+                style = MaterialTheme.typography.titleLarge
+            )
+        } else {
+            LazyColumn(modifier = Modifier.padding(all = 10.dp)) {
+                items(
+                    count = performanceList.itemCount,
+                    key = performanceList.itemKey(),
+                    contentType = performanceList.itemContentType()
+                ) { index ->
+                    val performance = performanceList[index]
+                    performance?.let {
+                        var show by remember { mutableStateOf(true) }
+                        val dismissState = rememberDismissState(
+                            confirmValueChange = {
+                                if (it == DismissValue.DismissedToStart ||
+                                    it == DismissValue.DismissedToEnd
+                                ) {
+                                    show = false
+                                    true
+                                } else false
+                            }, positionalThreshold = { 200.dp.toPx() }
+                        )
+
+                        AnimatedVisibility(
+                            show, exit = fadeOut(spring())
+                        ) {
+                            SwipeToDelete(
+                                dismissState = dismissState,
+                                performance = performance,
+                                onClick = onClick
+                            )
+                        }
+
+                        LaunchedEffect(show) {
+                            if (!show) {
+                                delay(800)
+                                onSwipe(performance)
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun PerformanceListItem(
+    performance: Performance,
+    modifier: Modifier = Modifier,
+) {
+    Card(
+        modifier = modifier.fillMaxWidth(),
+        elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
+    ) {
+        Column(
+            modifier = modifier.padding(all = 10.dp)
+        ) {
+            AsyncImage(model = performance.imageURL, contentDescription = "")
+            Button(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(all = 10.dp),
+                onClick = { }) {
+                Text(performance.title)
+            }
+        }
+    }
+}
+
+@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 AdminSchedulePreview() {
+    Mobile_LabsTheme {
+        Surface(
+            color = MaterialTheme.colorScheme.background
+        ) {
+            PerformanceList(
+                performanceList = MutableStateFlow(
+                    PagingData.empty<Performance>()
+                ).collectAsLazyPagingItems(),
+                onClick = {},
+                onSwipe = {}
+            )
+        }
+    }
+}

app/src/main/java/com/example/mobile_labs/ui/performance/list/AdminPerformanceListViewModel.kt

@@ -0,0 +1,17 @@
+package com.example.mobile_labs.ui.performance.list
+
+import androidx.lifecycle.ViewModel
+import androidx.paging.PagingData
+import com.example.mobile_labs.common.PerformanceRepository
+import com.example.mobile_labs.database.performance.model.Performance
+import kotlinx.coroutines.flow.Flow
+
+class AdminPerformanceListViewModel(
+    private val performanceRepository: PerformanceRepository
+) : ViewModel() {
+    val performanceListUiState: Flow<PagingData<Performance>> = performanceRepository.getAllPerformances()
+
+    suspend fun deleteStudent(performance: Performance) {
+        performanceRepository.deletePerformance(performance)
+    }
+}

app/src/main/java/com/example/mobile_labs/ui/performance/list/PerformanceList.kt

@@ -1,6 +1,7 @@
 package com.example.mobile_labs.ui.performance.list
 
 import android.content.res.Configuration
+import android.util.Log
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
@@ -28,6 +29,7 @@ import androidx.paging.compose.itemContentType
 import androidx.paging.compose.itemKey
 import coil.compose.AsyncImage
 import com.example.mobile_labs.R
+import com.example.mobile_labs.api.MyServerService
 import com.example.mobile_labs.database.performance.model.Performance
 import com.example.mobile_labs.common.AppViewModelProvider
 import com.example.mobile_labs.ui.navigation.Screen

app/src/main/java/com/example/mobile_labs/ui/performance/view/AdminPerformanceView.kt

@@ -0,0 +1,129 @@
+package com.example.mobile_labs.ui.performance.view
+
+import android.content.res.Configuration
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+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.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import coil.compose.AsyncImage
+import com.example.mobile_labs.R
+import com.example.mobile_labs.common.AppViewModelProvider
+import com.example.mobile_labs.ui.theme.Mobile_LabsTheme
+import kotlinx.coroutines.launch
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun AdminPerformanceView(
+    navController: NavController,
+    viewModel: AdminPerformanceViewModel = viewModel(factory = AppViewModelProvider.Factory)
+) {
+    val coroutineScope = rememberCoroutineScope()
+    PerformanceEdit(
+        performanceUiState = viewModel.performanceUiState,
+        onClick = {
+            coroutineScope.launch {
+                viewModel.savePerformance()
+                navController.popBackStack()
+            }
+        },
+        onUpdate = viewModel::updateUiState,
+    )
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun PerformanceEdit(
+    performanceUiState: AdminPerformanceUiState,
+    onClick: () -> Unit,
+    onUpdate: (AdminPerformanceDetails) -> Unit,
+) {
+    Column(
+        Modifier
+            .fillMaxWidth()
+            .padding(all = 10.dp)
+    ) {
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = performanceUiState.performanceDetails.title,
+            onValueChange = { onUpdate(performanceUiState.performanceDetails.copy(title = it)) },
+            label = {Text("Название")},
+            singleLine = true
+        )
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = performanceUiState.performanceDetails.description,
+            onValueChange = { onUpdate(performanceUiState.performanceDetails.copy(description = it)) },
+            label = {Text("Описание")},
+            singleLine = true
+        )
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = performanceUiState.performanceDetails.imageURL,
+            onValueChange = { onUpdate(performanceUiState.performanceDetails.copy(imageURL = it)) },
+            label = { Text("URL изображения") },
+            singleLine = true,
+        )
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = performanceUiState.performanceDetails.previewImageUrl,
+            onValueChange = { onUpdate(performanceUiState.performanceDetails.copy(previewImageUrl = it)) },
+            label = {Text("URL превью")},
+            singleLine = true
+        )
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = performanceUiState.performanceDetails.authorId.toString(),
+            onValueChange = { onUpdate(performanceUiState.performanceDetails.copy(authorId = it.toInt())) },
+            label = {Text("Автор")},
+            singleLine = true,
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Phone)
+        )
+        OutlinedTextField(
+            modifier = Modifier.fillMaxWidth(),
+            value = performanceUiState.performanceDetails.directorId.toString(),
+            onValueChange = { onUpdate(performanceUiState.performanceDetails.copy(directorId = it.toInt())) },
+            label = {Text("Режиссер")},
+            singleLine = true,
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Phone)
+        )
+        Button(
+            onClick = onClick,
+            enabled = performanceUiState.isEntryValid,
+            shape = MaterialTheme.shapes.small,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(text = "Сохранить")
+        }
+    }
+}
+
+@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 AdminPerformanceViewPreview() {
+    Mobile_LabsTheme {
+        Surface(
+            color = MaterialTheme.colorScheme.background
+        ) {
+            PerformanceView()
+        }
+    }
+}

app/src/main/java/com/example/mobile_labs/ui/performance/view/AdminPerformanceViewModel.kt

@@ -0,0 +1,103 @@
+package com.example.mobile_labs.ui.performance.view
+
+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.mobile_labs.database.performance.model.PerformanceWithPeople
+import com.example.mobile_labs.common.PerformanceRepository
+import com.example.mobile_labs.database.performance.model.Performance
+import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+
+class AdminPerformanceViewModel(
+    savedStateHandle: SavedStateHandle,
+    private val performanceRepository: PerformanceRepository
+) : ViewModel() {
+
+    var performanceUiState by mutableStateOf(AdminPerformanceUiState())
+        private set
+
+    private val performanceUid: Int = checkNotNull(savedStateHandle["id"])
+
+    init {
+        viewModelScope.launch {
+            if (performanceUid > 0) {
+                performanceUiState = performanceRepository.getPerformance(performanceUid)
+                    .toUiStateAdmin()
+            }
+        }
+    }
+
+    fun updateUiState(performanceDetails: AdminPerformanceDetails) {
+        performanceUiState = AdminPerformanceUiState(
+            performanceDetails = performanceDetails,
+            isEntryValid = validateInput(performanceDetails)
+        )
+    }
+
+    suspend fun savePerformance() {
+        if (validateInput()) {
+            if (performanceUid > 0) {
+                performanceRepository.updatePerformance(
+                    performanceUiState.performanceDetails.toPerformance(performanceUid)
+                )
+            } else {
+                performanceRepository.insertPerformance(
+                    performanceUiState.performanceDetails.toPerformance()
+                )
+            }
+        }
+    }
+
+    private fun validateInput(uiState: AdminPerformanceDetails = performanceUiState.performanceDetails): Boolean {
+        return with(uiState) {
+            title.isNotBlank()
+                    && description.isNotBlank()
+        }
+    }
+}
+
+data class AdminPerformanceUiState(
+    val performanceDetails: AdminPerformanceDetails = AdminPerformanceDetails(),
+    val isEntryValid: Boolean = false
+)
+
+data class AdminPerformanceDetails(
+    val title: String = "",
+    val authorName: String = "",
+    val actorsList: String = "",
+    val imageURL: String = "",
+    val description: String = "",
+    val authorId: Int = 0,
+    val directorId: Int = 0,
+    val previewImageUrl: String = "",
+)
+
+fun PerformanceWithPeople.toAdminDetails(): AdminPerformanceDetails = AdminPerformanceDetails(
+    title = performance.title,
+    authorName = String.format("%s %s", author.last_name, author.first_name),
+    actorsList = buildString { for (actor in actors) append(actor.last_name + " " + actor.first_name + "\n") },
+    imageURL = performance.imageURL,
+    description = performance.description,
+    authorId = performance.authorId!!,
+    directorId = performance.directorId!!,
+    previewImageUrl = performance.previewImageURL,
+)
+
+fun PerformanceWithPeople.toUiStateAdmin(): AdminPerformanceUiState = AdminPerformanceUiState(
+    performanceDetails = this.toAdminDetails(),
+)
+
+fun AdminPerformanceDetails.toPerformance(uid: Int = 0): Performance = Performance(
+    performance_uid = uid,
+    title = title,
+    authorId = authorId,
+    directorId = directorId,
+    imageURL = imageURL,
+    description = description,
+    previewImageURL = previewImageUrl
+)

app/src/main/res/values/strings.xml

@@ -6,12 +6,15 @@
     <string name="performance_author">Автор</string>
     <string name="performance_director">Режиссёр</string>
     <string name="performance_actors">Актёры</string>
-    <string name="people_main_title">Люди театра</string>
+    <string name="people_main_title">Труппа</string>
     <string name="about_main_title">О нас</string>
+    <string name="login_main_title">Вход</string>
     <string name="performance_view_main_title">Представление</string>
     <string name="people_missing_description">Данные о людях отсутствуют</string>
     <string name="events_missing_description">Данные о событиях отсутствуют</string>
     <string name="performance_missing_description">Данные о представлениях отсутствуют</string>
+    <string name="login">Логин</string>
+    <string name="password">Пароль</string>
     <string name="about_text">
         <p>
             Netus quis congue nascetur ullamcorper nibh, nostra iaculis turpis! Facilisi pretium vehicula purus porttitor vitae aliquet dignissim. Donec diam molestie litora magnis dolor aptent scelerisque mus. Sit mi, venenatis interdum. Commodo vel malesuada tincidunt eget. Aenean laoreet lacinia platea sem? Libero urna odio diam? Nisl, sodales nisi gravida. Interdum elementum libero turpis dapibus tristique per sed maecenas ante integer massa? Tortor molestie sapien himenaeos condimentum. Facilisis accumsan ullamcorper semper fermentum elementum quisque. Curae;, vivamus ante hac elit fringilla odio ornare curabitur quisque magna commodo. Placerat proin!