Project

app/build.gradle.kts

@@ -35,6 +35,11 @@ android {
 }
 
 dependencies {
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.ui:ui-graphics")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.compose.material3:material3")
+    debugImplementation("androidx.compose.ui:ui-tooling")
     defaultComposeLibrary()
     implementation("androidx.datastore:datastore-preferences:1.1.7")
     implementation("org.jetbrains.kotlinx:kotlinx-collections-immutable:0.4.0")

app/src/main/java/ru/myitschool/work/App.kt

@@ -2,11 +2,13 @@ package ru.myitschool.work
 
 import android.app.Application
 import android.content.Context
+import ru.myitschool.work.data.repo.AuthRepository
 
 class App: Application() {
     override fun onCreate() {
         super.onCreate()
         context = this
+
     }
 
     companion object {

app/src/main/java/ru/myitschool/work/AppModule.kt

@@ -0,0 +1,41 @@
+package ru.myitschool.work
+
+import android.content.Context
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.domain.auth.CheckAndSaveAuthCodeUseCase
+import ru.myitschool.work.domain.book.CreateBookingUseCase
+import ru.myitschool.work.domain.book.GetAvailableBookingsUseCase
+import ru.myitschool.work.domain.main.GetUserInfoUseCase
+import ru.myitschool.work.domain.main.LogoutUseCase
+
+object AppModule {
+    private lateinit var _authRepository: AuthRepository
+
+    val authRepository: AuthRepository
+        get() = _authRepository
+
+    lateinit var checkAndSaveAuthCodeUseCase: CheckAndSaveAuthCodeUseCase
+        private set
+
+    lateinit var getUserInfoUseCase: GetUserInfoUseCase
+        private set
+
+    lateinit var getAvailableBookingsUseCase: GetAvailableBookingsUseCase
+        private set
+
+    lateinit var createBookingUseCase: CreateBookingUseCase
+        private set
+
+    lateinit var logoutUseCase: LogoutUseCase
+        private set
+
+    fun init(context: Context) {
+        _authRepository = AuthRepository(context)
+        val networkDataSource = _authRepository.getNetworkDataSource()
+        checkAndSaveAuthCodeUseCase = CheckAndSaveAuthCodeUseCase(_authRepository)
+        getUserInfoUseCase = GetUserInfoUseCase(_authRepository, networkDataSource)
+        getAvailableBookingsUseCase = GetAvailableBookingsUseCase(_authRepository, networkDataSource)
+        createBookingUseCase = CreateBookingUseCase(_authRepository, networkDataSource)
+        logoutUseCase = LogoutUseCase(_authRepository)
+    }
+}

app/src/main/java/ru/myitschool/work/core/Constants.kt

@@ -1,9 +1,12 @@
 package ru.myitschool.work.core
 
 object Constants {
-    const val HOST = "http://10.0.2.2:8080"
+    const val HOST = "http://10.0.2.2:8080/"
     const val AUTH_URL = "/auth"
     const val INFO_URL = "/info"
     const val BOOKING_URL = "/booking"
     const val BOOK_URL = "/book"
+
+    const val AUTH_CODE_KEY = "auth_code"
+    const val AUTH_PREFS_NAME = "auth_prefs"
 }

app/src/main/java/ru/myitschool/work/data/repo/AuthRepository.kt

@@ -1,16 +1,61 @@
 package ru.myitschool.work.data.repo
 
+import android.content.Context
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import androidx.datastore.preferences.preferencesDataStore
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+import ru.myitschool.work.core.Constants
 import ru.myitschool.work.data.source.NetworkDataSource
+import ru.myitschool.work.data.source.NetworkDataSourceImpl
 
-object AuthRepository {
+val Context.authDataStore: DataStore<Preferences> by preferencesDataStore(name = Constants.AUTH_PREFS_NAME)
 
+class AuthRepository(
+    private val context: Context
+)
+{
+    private val networkDataSource: NetworkDataSource = NetworkDataSourceImpl()
+    private val authCodeKey = stringPreferencesKey(Constants.AUTH_CODE_KEY)
     private var codeCache: String? = null
 
     suspend fun checkAndSave(text: String): Result<Boolean> {
-        return NetworkDataSource.checkAuth(text).onSuccess { success ->
+        return networkDataSource.checkAuth(text).onSuccess { success ->
             if (success) {
                 codeCache = text
+                saveAuthCode(text)
             }
         }
     }
+    fun getAuthCode(): Flow<String?> {
+        return context.authDataStore.data.map { preferences ->
+            preferences[authCodeKey]
+        }
+    }
+    private suspend fun saveAuthCode(code: String) {
+        context.authDataStore.edit { preferences ->
+            preferences[authCodeKey] = code
+        }
+    }
+    suspend fun isAuthorized(): Boolean {
+        return try {
+            val code = getAuthCode().first()
+            code != null
+        } catch (e: Exception) {
+            false
+        }
+    }
+    suspend fun logout() {
+        context.authDataStore.edit { preferences ->
+            preferences.remove(authCodeKey)
+        }
+    }
+    fun isAuthorizedFlow(): Flow<Boolean> {
+        return getAuthCode().map { it != null }
+    }
+    fun getNetworkDataSource(): NetworkDataSource = networkDataSource
 }

app/src/main/java/ru/myitschool/work/data/source/NetworkDataSource.kt

@@ -1,18 +1,55 @@
 package ru.myitschool.work.data.source
 
 import io.ktor.client.HttpClient
+import io.ktor.client.call.body
 import io.ktor.client.engine.cio.CIO
 import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
 import io.ktor.client.request.get
+import io.ktor.client.request.post
+import io.ktor.client.request.setBody
 import io.ktor.client.statement.bodyAsText
+import io.ktor.http.ContentType
 import io.ktor.http.HttpStatusCode
+import io.ktor.http.contentType
 import io.ktor.serialization.kotlinx.json.json
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
+import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 import ru.myitschool.work.core.Constants
+@Serializable
+data class UserInfoResponse(
+    val name: String,
+    val photoUrl: String,
+    val booking: Map<String, BookingInfo>
+)
 
-object NetworkDataSource {
+@Serializable
+data class BookingInfo(
+    val id: Int,
+    val place: String
+)
+
+@Serializable
+data class BookingPlace(
+    val id: Int,
+    val place: String
+)
+
+@Serializable
+data class BookRequest(
+    val date: String,
+    val placeId: Int
+)
+
+interface NetworkDataSource {
+    suspend fun checkAuth(code: String): Result<Boolean>
+    suspend fun getUserInfo(code: String): Result<UserInfoResponse>
+    suspend fun getAvailableBookings(code: String): Result<Map<String, List<BookingPlace>>>
+    suspend fun createBooking(code: String, date: String, placeId: Int): Result<Boolean>
+}
+
+class NetworkDataSourceImpl : NetworkDataSource {
     private val client by lazy {
         HttpClient(CIO) {
             install(ContentNegotiation) {
@@ -28,7 +65,7 @@ object NetworkDataSource {
         }
     }
 
-    suspend fun checkAuth(code: String): Result<Boolean> = withContext(Dispatchers.IO) {
+    override suspend fun checkAuth(code: String): Result<Boolean> = withContext(Dispatchers.IO) {
         return@withContext runCatching {
             val response = client.get(getUrl(code, Constants.AUTH_URL))
             when (response.status) {
@@ -38,5 +75,53 @@ object NetworkDataSource {
         }
     }
 
-    private fun getUrl(code: String, targetUrl: String) = "${Constants.HOST}/api/$code$targetUrl"
+
+    override suspend fun getUserInfo(code: String): Result<UserInfoResponse> = withContext(Dispatchers.IO) {
+        return@withContext runCatching {
+            val response = client.get("${Constants.HOST}api/$code/info")
+
+            when (response.status) {
+                HttpStatusCode.OK -> response.body()
+                HttpStatusCode.Unauthorized -> throw Exception("Invalid auth code")
+                HttpStatusCode.BadRequest -> throw Exception("Bad request")
+                else -> throw Exception("Failed to get user info: ${response.status}")
+            }
+        }
+    }
+
+    override suspend fun getAvailableBookings(code: String): Result<Map<String, List<BookingPlace>>> = withContext(Dispatchers.IO) {
+        return@withContext runCatching {
+            val response = client.get("${Constants.HOST}api/$code/booking")
+
+            when (response.status) {
+                HttpStatusCode.OK -> response.body()
+                HttpStatusCode.Unauthorized -> throw Exception("Invalid auth code")
+                HttpStatusCode.BadRequest -> throw Exception("Bad request")
+                else -> throw Exception("Failed to get available bookings: ${response.status}")
+            }
+        }
+    }
+
+    override suspend fun createBooking(code: String, date: String, placeId: Int): Result<Boolean> = withContext(Dispatchers.IO) {
+        return@withContext runCatching {
+            val request = BookRequest(date, placeId)
+
+            val response = client.post("${Constants.HOST}api/$code/book") {
+                contentType(ContentType.Application.Json)
+                setBody(request)
+            }
+
+            when (response.status) {
+                HttpStatusCode.Created -> true
+                HttpStatusCode.Conflict -> throw Exception("Already booked")
+                HttpStatusCode.Unauthorized -> throw Exception("Invalid auth code")
+                HttpStatusCode.BadRequest -> throw Exception("Bad request")
+                else -> throw Exception("Failed to create booking: ${response.status}")
+            }
+        }
+    }
+
+
+
+private fun getUrl(code: String, targetUrl: String) = "${Constants.HOST}api/$code$targetUrl"
 }

app/src/main/java/ru/myitschool/work/domain/book/AvailableBookingDate.kt

@@ -0,0 +1,9 @@
+package ru.myitschool.work.domain.book
+
+import ru.myitschool.work.data.source.BookingPlace
+
+data class AvailableBookingDate(
+    val date: String,
+    val originalDate: String,
+    val places: List<BookingPlace>
+)

app/src/main/java/ru/myitschool/work/domain/book/CreateBookingUseCase.kt

@@ -0,0 +1,36 @@
+package ru.myitschool.work.domain.book
+
+import kotlinx.coroutines.flow.first
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.data.source.NetworkDataSource
+
+class CreateBookingUseCase(
+    private val authRepository: AuthRepository,
+    private val networkDataSource: NetworkDataSource
+) {
+    suspend operator fun invoke(date: String, placeId: Int): Result<Unit> {
+        val code = getCurrentCode()
+        return if (code != null) {
+            try {
+                val result = networkDataSource.createBooking(code, date, placeId)
+                if (result.isSuccess && result.getOrDefault(false)) {
+                    Result.success(Unit)
+                } else {
+                    Result.failure(result.exceptionOrNull() ?: Exception("Ошибка бронирования"))
+                }
+            } catch (e: Exception) {
+                Result.failure(e)
+            }
+        } else {
+            Result.failure(Exception("Пользователь не авторизован"))
+        }
+    }
+
+    private suspend fun getCurrentCode(): String? {
+        return try {
+            authRepository.getAuthCode().first()
+        } catch (e: Exception) {
+            null
+        }
+    }
+}

app/src/main/java/ru/myitschool/work/domain/book/GetAvailableBookingUseCase.kt

@@ -0,0 +1,60 @@
+package ru.myitschool.work.domain.book
+
+import kotlinx.coroutines.flow.first
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.data.source.NetworkDataSource
+import java.text.SimpleDateFormat
+import java.util.Locale
+
+class GetAvailableBookingsUseCase(
+    private val authRepository: AuthRepository,
+    private val networkDataSource: NetworkDataSource
+) {
+    suspend operator fun invoke(): Result<List<AvailableBookingDate>> {
+        val code = getCurrentCode()
+        return if (code != null) {
+            try {
+                val response = networkDataSource.getAvailableBookings(code)
+                if (response.isSuccess) {
+                    val bookingsMap = response.getOrThrow()
+                    val availableDates = bookingsMap.entries.mapNotNull { entry ->
+                        try {
+                            val dateFormatter = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
+                            val displayFormatter = SimpleDateFormat("dd.MM", Locale.getDefault())
+                            val date = dateFormatter.parse(entry.key)
+                            AvailableBookingDate(
+                                date = displayFormatter.format(date),
+                                originalDate = entry.key,
+                                places = entry.value
+                            )
+                        } catch (e: Exception) {
+                            null
+                        }
+                    }.sortedBy {
+                        try {
+                            SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).parse(it.originalDate)
+                        } catch (e: Exception) {
+                            null
+                        }
+                    }
+
+                    Result.success(availableDates)
+                } else {
+                    Result.failure(response.exceptionOrNull() ?: Exception("Ошибка получения данных"))
+                }
+            } catch (e: Exception) {
+                Result.failure(e)
+            }
+        } else {
+            Result.failure(Exception("Пользователь не авторизован"))
+        }
+    }
+
+    private suspend fun getCurrentCode(): String? {
+        return try {
+            authRepository.getAuthCode().first()
+        } catch (e: Exception) {
+            null
+        }
+    }
+}

app/src/main/java/ru/myitschool/work/domain/main/GetUserInfoUseCase.kt

@@ -0,0 +1,82 @@
+package ru.myitschool.work.domain.main
+
+import kotlinx.coroutines.flow.first
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.data.source.NetworkDataSource
+import ru.myitschool.work.ui.screen.main.BookingItem
+import java.text.SimpleDateFormat
+import java.util.Locale
+import ru.myitschool.work.data.source.BookingInfo as SourceBookingInfo
+
+class GetUserInfoUseCase(
+    private val authRepository: AuthRepository,
+    private val networkDataSource: NetworkDataSource
+) {
+    suspend operator fun invoke(): Result<UserInfo> {
+        val code = getCurrentCode()
+        return if (code != null) {
+            try {
+                val response = networkDataSource.getUserInfo(code)
+                if (response.isSuccess) {
+                    val userInfoResponse = response.getOrThrow()
+
+                    val bookings = userInfoResponse.booking.entries.mapNotNull { entry ->
+                        try {
+                            val dateFormatter = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
+                            val displayFormatter = SimpleDateFormat("dd.MM.yyyy", Locale.getDefault())
+                            val date = dateFormatter.parse(entry.key)
+
+                            // Получаем место из BookingInfo
+                            val place = when (val bookingInfo = entry.value) {
+                                is SourceBookingInfo -> bookingInfo.place
+                                else -> entry.value.toString()
+                            }
+
+                            BookingItem(
+                                date = displayFormatter.format(date),
+                                place = place,
+                                originalDate = entry.key
+                            )
+                        } catch (e: Exception) {
+                            null
+                        }
+                    }.sortedBy {
+                        try {
+                            SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).parse(it.originalDate)
+                        } catch (e: Exception) {
+                            null
+                        }
+                    }
+
+                    Result.success(
+                        UserInfo(
+                            name = userInfoResponse.name,
+                            photoUrl = userInfoResponse.photoUrl,
+                            bookings = bookings
+                        )
+                    )
+                } else {
+                    Result.failure(response.exceptionOrNull() ?: Exception("Ошибка получения данных"))
+                }
+            } catch (e: Exception) {
+                Result.failure(e)
+            }
+        } else {
+            Result.failure(Exception("Пользователь не авторизован"))
+        }
+    }
+
+    private suspend fun getCurrentCode(): String? {
+        return try {
+            authRepository.getAuthCode().first()
+        } catch (e: Exception) {
+            null
+        }
+    }
+}
+
+data class UserInfo(
+    val name: String,
+    val photoUrl: String,
+    val bookings: List<BookingItem>
+)

app/src/main/java/ru/myitschool/work/domain/main/LogoutUseCase.kt

@@ -0,0 +1,9 @@
+package ru.myitschool.work.domain.main
+
+import ru.myitschool.work.data.repo.AuthRepository
+
+class LogoutUseCase(private val authRepository: AuthRepository) {
+    suspend operator fun invoke() {
+        authRepository.logout()
+    }
+}

app/src/main/java/ru/myitschool/work/ui/nav/AppDestination.kt

@@ -1,3 +1,7 @@
 package ru.myitschool.work.ui.nav
 
-sealed interface AppDestination
+sealed class AppDestination(val route: String) {
+    object Auth : AppDestination("auth")
+    object Main : AppDestination("main")
+    object Book : AppDestination("book")
+}

app/src/main/java/ru/myitschool/work/ui/nav/AuthScreenDestination.kt

@@ -2,5 +2,6 @@ package ru.myitschool.work.ui.nav
 
 import kotlinx.serialization.Serializable
 
-@Serializable
-data object AuthScreenDestination: AppDestination
+object AuthScreenDestination {
+    const val route = "auth"
+}

app/src/main/java/ru/myitschool/work/ui/nav/BookScreenDestination.kt

@@ -2,5 +2,6 @@ package ru.myitschool.work.ui.nav
 
 import kotlinx.serialization.Serializable
 
-@Serializable
-data object BookScreenDestination: AppDestination
+object BookScreenDestination {
+    const val route = "book"
+}

app/src/main/java/ru/myitschool/work/ui/nav/MainScreenDestination.kt

@@ -2,5 +2,6 @@ package ru.myitschool.work.ui.nav
 
 import kotlinx.serialization.Serializable
 
-@Serializable
-data object MainScreenDestination: AppDestination
+object MainScreenDestination {
+    const val route = "main"
+}

app/src/main/java/ru/myitschool/work/ui/root/RootActivity.kt

@@ -6,23 +6,26 @@ import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Surface
 import androidx.compose.ui.Modifier
-import ru.myitschool.work.ui.screen.AppNavHost
+import ru.myitschool.work.AppModule
+import ru.myitschool.work.ui.screen.NavigationGraph
 import ru.myitschool.work.ui.theme.WorkTheme
 
 class RootActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        enableEdgeToEdge()
+        AppModule.init(applicationContext)
+
         setContent {
             WorkTheme {
-                Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
-                    AppNavHost(
-                        modifier = Modifier
-                            .fillMaxSize()
-                            .padding(innerPadding)
-                    )
+                Surface(
+                    modifier = Modifier.fillMaxSize(),
+                    color = MaterialTheme.colorScheme.background
+                ) {
+                    NavigationGraph()
                 }
             }
         }

app/src/main/java/ru/myitschool/work/ui/screen/NavigationGraph.kt

@@ -5,45 +5,116 @@ import androidx.compose.animation.ExitTransition
 import androidx.compose.foundation.layout.Box
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
-import ru.myitschool.work.ui.nav.AuthScreenDestination
+import ru.myitschool.work.AppModule
+import ru.myitschool.work.ui.nav.AppDestination
+
 import ru.myitschool.work.ui.nav.BookScreenDestination
 import ru.myitschool.work.ui.nav.MainScreenDestination
 import ru.myitschool.work.ui.screen.auth.AuthScreen
+import ru.myitschool.work.ui.screen.auth.AuthViewModel
+import ru.myitschool.work.ui.screen.book.BookScreen
+import ru.myitschool.work.ui.screen.book.BookViewModel
+import ru.myitschool.work.ui.screen.main.MainScreen
+import ru.myitschool.work.ui.screen.main.MainViewModel
 
 @Composable
-fun AppNavHost(
-    modifier: Modifier = Modifier,
+fun NavigationGraph(
     navController: NavHostController = rememberNavController()
 ) {
-    NavHost(
-        modifier = modifier,
-        enterTransition = { EnterTransition.None },
-        exitTransition = { ExitTransition.None },
+
+
+
+        val isAuthorized by AppModule.authRepository.isAuthorizedFlow()
+            .collectAsState(initial = false)
+
+
+        val startDestination = remember(isAuthorized) {
+            if (isAuthorized) AppDestination.Main.route else AppDestination.Auth.route
+        }
+
+
+        NavHost(
         navController = navController,
-        startDestination = AuthScreenDestination,
+        startDestination = startDestination
     ) {
-        composable<AuthScreenDestination> {
-            AuthScreen(navController = navController)
-        }
-        composable<MainScreenDestination> {
-            Box(
-                contentAlignment = Alignment.Center
-            ) {
-                Text(text = "Hello")
+        composable(AppDestination.Auth.route) {
+            val viewModel: AuthViewModel = viewModel()
+            val state = viewModel.uiState.collectAsState()
+
+            AuthScreen(
+                state = state.value,
+                navController = navController
+                //onIntent = viewModel::processIntent
+            )
+
+
+            LaunchedEffect(Unit) {
+                viewModel.navigation.collect { destination ->
+                    navController.navigate(destination.route) {
+                        popUpTo(AppDestination.Auth.route) { inclusive = true }
+                    }
+                }
             }
         }
-        composable<BookScreenDestination> {
-            Box(
-                contentAlignment = Alignment.Center
-            ) {
-                Text(text = "Hello")
+
+        composable(AppDestination.Main.route) {
+            val viewModel: MainViewModel = viewModel()
+            val state = viewModel.state.collectAsState()
+
+            MainScreen(
+                state = state.value,
+                onIntent = viewModel::processIntent
+            )
+
+
+            LaunchedEffect(Unit) {
+                viewModel.navigation.collect { destination ->
+                    when (destination) {
+                        AppDestination.Auth -> {
+                            navController.navigate(destination.route) {
+                                popUpTo(AppDestination.Main.route) { inclusive = true }
+                            }
+                        }
+                        AppDestination.Book -> {
+                            navController.navigate(destination.route)
+                        }
+                        else -> {}
+                    }
+                }
             }
         }
+        composable(AppDestination.Book.route) {
+            val viewModel: BookViewModel = viewModel()
+            val state = viewModel.state.collectAsState()
+
+            BookScreen(
+                state = state.value,
+                onIntent = viewModel::processIntent
+            )
+
+            LaunchedEffect(Unit) {
+                viewModel.navigation.collect { destination ->
+                    when (destination) {
+                        AppDestination.Main -> {
+                            navController.navigate(destination.route) {
+                                popUpTo(AppDestination.Book.route) { inclusive = true }
+                            }
+                        }
+                        else -> {}
+                    }
+                }
+            }
+
     }
-}
+}}

app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthScreen.kt

@@ -31,20 +31,27 @@ import androidx.navigation.NavController
 import ru.myitschool.work.R
 import ru.myitschool.work.core.TestIds
 import ru.myitschool.work.ui.nav.MainScreenDestination
+import ru.myitschool.work.ui.screen.main.MainIntent
+import ru.myitschool.work.ui.screen.main.MainState
 
 @Composable
 fun AuthScreen(
     viewModel: AuthViewModel = viewModel(),
-    navController: NavController
+    navController: NavController,
+    state: AuthState
+
 ) {
     val state by viewModel.uiState.collectAsState()
 
-    LaunchedEffect(Unit) {
+        LaunchedEffect(Unit) {
         viewModel.actionFlow.collect {
             navController.navigate(MainScreenDestination)
         }
     }
 
+
+
+
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -52,11 +59,7 @@ fun AuthScreen(
         horizontalAlignment = Alignment.CenterHorizontally,
         verticalArrangement = Arrangement.Center
     ) {
-        Text(
-            text = stringResource(R.string.auth_title),
-            style = MaterialTheme.typography.headlineSmall,
-            textAlign = TextAlign.Center
-        )
+
         when (val currentState = state) {
             is AuthState.Data -> Content(viewModel, currentState)
             is AuthState.Loading -> {
@@ -64,6 +67,7 @@ fun AuthScreen(
                     modifier = Modifier.size(64.dp)
                 )
             }
+            is AuthState.Error -> Content(viewModel, currentState)
         }
     }
 }
@@ -71,15 +75,23 @@ fun AuthScreen(
 @Composable
 private fun Content(
     viewModel: AuthViewModel,
-    state: AuthState.Data
+    state: AuthState
 ) {
-    var inputText by remember { mutableStateOf("") }
+    val inputText = when (state) {
+        is AuthState.Data -> state.text
+        is AuthState.Error -> state.text
+        else -> "" }
+
+    Text(
+        text = stringResource(R.string.auth_title),
+        style = MaterialTheme.typography.headlineSmall,
+        textAlign = TextAlign.Center
+    )
     Spacer(modifier = Modifier.size(16.dp))
     TextField(
         modifier = Modifier.testTag(TestIds.Auth.CODE_INPUT).fillMaxWidth(),
         value = inputText,
         onValueChange = {
-            inputText = it
             viewModel.onIntent(AuthIntent.TextInput(it))
         },
         label = { Text(stringResource(R.string.auth_label)) }
@@ -89,9 +101,20 @@ private fun Content(
         modifier = Modifier.testTag(TestIds.Auth.SIGN_BUTTON).fillMaxWidth(),
         onClick = {
             viewModel.onIntent(AuthIntent.Send(inputText))
+
         },
-        enabled = true
-    ) {
+        enabled = inputText.length == 4 && !inputText.isNullOrEmpty() && inputText.matches("[a-zA-Z0-9]+".toRegex()),
+        ) {
         Text(stringResource(R.string.auth_sign_in))
     }
-}
+    Spacer(modifier = Modifier.size(24.dp))
+    if (state is AuthState.Error) {
+        Text(
+            modifier = Modifier.testTag(TestIds.Auth.ERROR),
+            text = state.message,
+            style = MaterialTheme.typography.labelMedium,
+            textAlign = TextAlign.Center,
+            color = Color.Red
+        )
+    }
+    }

app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthState.kt

@@ -2,5 +2,6 @@ package ru.myitschool.work.ui.screen.auth
 
 sealed interface AuthState {
     object Loading: AuthState
-    object Data: AuthState
+    class Data(val text: String = ""): AuthState
+    data class Error(val text: String, val message: String) : AuthState
 }

app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthViewModel.kt

@@ -1,43 +1,88 @@
 package ru.myitschool.work.ui.screen.auth
 
-import androidx.lifecycle.ViewModel
+import android.app.Application
+import android.content.Context
+import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import ru.myitschool.work.data.repo.AuthRepository
 import ru.myitschool.work.domain.auth.CheckAndSaveAuthCodeUseCase
+import ru.myitschool.work.ui.nav.AppDestination
+import ru.myitschool.work.ui.screen.main.MainIntent
 
-class AuthViewModel : ViewModel() {
-    private val checkAndSaveAuthCodeUseCase by lazy { CheckAndSaveAuthCodeUseCase(AuthRepository) }
-    private val _uiState = MutableStateFlow<AuthState>(AuthState.Data)
+class AuthViewModel(application: Application) : AndroidViewModel(application) {
+
+    private val _navigation = MutableSharedFlow<AppDestination>()
+    val navigation: SharedFlow<AppDestination> = _navigation.asSharedFlow()
+    private val repository by lazy {
+        AuthRepository(getApplication<Application>().applicationContext)
+    }
+    private val checkAndSaveAuthCodeUseCase by lazy {
+        CheckAndSaveAuthCodeUseCase(repository) }
+    private val _uiState = MutableStateFlow<AuthState>(AuthState.Data())
     val uiState: StateFlow<AuthState> = _uiState.asStateFlow()
 
     private val _actionFlow: MutableSharedFlow<Unit> = MutableSharedFlow()
     val actionFlow: SharedFlow<Unit> = _actionFlow
+    private val context = getApplication<Application>().applicationContext
+    private val prefs by lazy {
+        context.getSharedPreferences("auth", Context.MODE_PRIVATE)
+    }
+
+    init {
+        val savedCode = prefs.getString("saved_code", null)
+        if (!savedCode.isNullOrEmpty()) {
+            viewModelScope.launch {
+                _actionFlow.emit(Unit)
+            }
+        }
+
+    }
+
+
+
 
     fun onIntent(intent: AuthIntent) {
         when (intent) {
             is AuthIntent.Send -> {
                 viewModelScope.launch(Dispatchers.Default) {
+                    val currentText = when (val s = _uiState.value) {
+                        is AuthState.Data -> s.text
+                        is AuthState.Error -> s.text
+                        else -> ""
+                    }
                     _uiState.update { AuthState.Loading }
-                    checkAndSaveAuthCodeUseCase.invoke("9999").fold(
+                    checkAndSaveAuthCodeUseCase.invoke(intent.text).fold(
                         onSuccess = {
-                            _actionFlow.emit(Unit)
+                            prefs.edit()
+                                .putString("saved_code", intent.text)
+                                .apply()
+                            _navigation.emit(AppDestination.Main)
+
                         },
                         onFailure = { error ->
                             error.printStackTrace()
-                            _actionFlow.emit(Unit)
+                            _uiState.value = AuthState.Error(text = currentText,error.message ?: "Ошибка")
                         }
                     )
                 }
             }
-            is AuthIntent.TextInput -> Unit
+            is AuthIntent.TextInput -> {
+                when (val stateValue  = _uiState.value) {
+                    is AuthState.Data -> _uiState.value = AuthState.Data(text = intent.text)
+                    is AuthState.Error -> _uiState.value = AuthState.Data(intent.text)
+                    is AuthState.Loading -> Unit
+                }
+            }
         }
     }
+
 }

app/src/main/java/ru/myitschool/work/ui/screen/book/BookIntent.kt

@@ -0,0 +1,9 @@
+package ru.myitschool.work.ui.screen.book
+
+sealed class BookIntent {
+    data class DateSelected(val index: Int) : BookIntent()
+    data class PlaceSelected(val placeId: Int) : BookIntent()
+    object Book : BookIntent()
+    object Refresh : BookIntent()
+    object Back : BookIntent()
+}

app/src/main/java/ru/myitschool/work/ui/screen/book/BookScreen.kt

@@ -0,0 +1,299 @@
+package ru.myitschool.work.ui.screen.book
+
+import android.R
+import androidx.annotation.ColorRes
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+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.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.selection.selectable
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.BottomAppBar
+import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.CenterAlignedTopAppBar
+import androidx.compose.material3.CheckboxDefaults.colors
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.RadioButton
+import androidx.compose.material3.RadioButtonDefaults
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+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.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import com.google.android.material.bottomappbar.BottomAppBar
+import com.google.android.material.progressindicator.CircularProgressIndicator
+import ru.myitschool.work.core.TestIds
+import ru.myitschool.work.ui.nav.MainScreenDestination
+import ru.myitschool.work.ui.screen.auth.AuthState
+import ru.myitschool.work.ui.screen.auth.AuthViewModel
+import kotlin.collections.getOrNull
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun BookScreen(
+    state: BookState,
+    onIntent: (BookIntent) -> Unit
+) {
+    if (state.showError) {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(24.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+            verticalArrangement = Arrangement.Center
+        ) {
+            Text(
+                modifier = Modifier.testTag(TestIds.Book.ERROR),
+                text = state.error ?: "Ошибка загрузки",
+                color = MaterialTheme.colorScheme.error,
+                style = MaterialTheme.typography.bodyLarge
+            )
+            Spacer(Modifier.height(20.dp))
+
+            Row(horizontalArrangement = Arrangement.spacedBy(12.dp)) {
+                OutlinedButton(
+                    onClick = { onIntent(BookIntent.Back) }) {
+                    Text("Назад")
+                }
+                Button(
+                    modifier = Modifier.testTag(TestIds.Book.REFRESH_BUTTON),
+                    onClick = { onIntent(BookIntent.Refresh) }) {
+                    Text("Обновить")
+                }
+            }
+        }
+        return
+    }
+
+    if (state.isEmpty) {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(24.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+            verticalArrangement = Arrangement.Center
+        ) {
+            Text("Всё забронировано",
+                modifier = Modifier.testTag(TestIds.Book.EMPTY),
+                style = MaterialTheme.typography.bodyLarge)
+            Spacer(Modifier.height(16.dp))
+            OutlinedButton(onClick = { onIntent(BookIntent.Back) }) {
+                Text("Назад")
+            }
+        }
+        return
+    }
+
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = { Text("Бронирование") }
+            )
+        }
+    ) { padding ->
+
+        if (state.isLoading) {
+            Box(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(padding),
+                contentAlignment = Alignment.Center
+            ) {
+                CircularProgressIndicator()
+            }
+            return@Scaffold
+        }
+
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+        ) {
+
+
+            LazyRow(
+                modifier = Modifier
+                    .padding(start = 32.dp, top = 32.dp, end = 32.dp),
+                horizontalArrangement = Arrangement.spacedBy(8.dp)
+            ) {
+                itemsIndexed(state.availableDates) { index, date ->
+                    val isSelected = state.selectedDateIndex == index
+
+                    Box(
+                        modifier = Modifier
+                            .testTag("book_date_pos_$index")
+                            .clip(RoundedCornerShape(8.dp))
+                            .border(
+                                width = 1.dp,
+                                color = if (isSelected)
+                                    Color(0xFF2962FF)
+                                else
+                                    Color(0xFFBDBDBD),
+                                shape = RoundedCornerShape(8.dp)
+                            )
+
+                            .clickable {
+                                onIntent(BookIntent.DateSelected(index))
+                            }
+                            .padding(horizontal = 14.dp, vertical = 8.dp)
+                    ) {
+                        Text(
+                            modifier = Modifier.testTag(TestIds.Book.ITEM_DATE),
+                            text = date.date,
+                            style = MaterialTheme.typography.bodyMedium
+
+                        )
+                    }
+                }
+            }
+
+            Spacer(modifier = Modifier.height(12.dp))
+
+            val selectedDate = state.availableDates
+                .getOrNull(state.selectedDateIndex)
+
+            if (selectedDate != null && selectedDate.places.isNotEmpty()) {
+                LazyColumn(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(horizontal = 16.dp),
+                    verticalArrangement = Arrangement.spacedBy(6.dp)
+                ) {
+                    itemsIndexed(selectedDate.places) {index, place ->
+                        val isSelected =
+                            state.selectedPlaceId == place.id
+
+                        Row(
+                            modifier = Modifier
+                                .testTag("book_place_pos_$index")
+                                .fillMaxWidth()
+                                .clip(RoundedCornerShape(8.dp))
+                                .background(Color.Transparent)
+                                .clickable {
+                                    onIntent(
+                                        BookIntent.PlaceSelected(place.id)
+                                    )
+                                }
+                                .padding(vertical = 16.dp, horizontal = 24.dp),
+                            verticalAlignment = Alignment.CenterVertically,
+                            horizontalArrangement = Arrangement.SpaceBetween
+                        ) {
+
+                            Text(
+                                modifier = Modifier.testTag(TestIds.Book.ITEM_PLACE_TEXT).weight(1f),
+                                text = place.place,
+                                style = MaterialTheme.typography.bodyLarge,
+
+                            )
+
+
+                            Box(
+                                modifier = Modifier
+                                    .testTag(TestIds.Book.ITEM_PLACE_SELECTOR)
+                                    .size(20.dp)
+                                    .clip(CircleShape)
+                                    .selectable(
+                                        selected = isSelected,
+                                        onClick = {
+                                            onIntent(BookIntent.PlaceSelected(place.id))
+                                        },
+                                        role = Role.RadioButton
+                                    )
+
+                                    .border(
+                                        2.dp,
+                                        if (isSelected)
+                                            Color(0xFF2962FF)
+                                        else
+                                            Color(0xFF9E9E9E),
+                                        CircleShape
+                                    )
+                            ) {
+                                if (isSelected) {
+                                    Box(
+                                        modifier = Modifier
+                                            .size(10.dp)
+                                            .align(Alignment.Center)
+                                            .clip(CircleShape)
+                                            .background(Color(0xFF2962FF))
+                                    )
+                                }
+                            }
+                        }
+                    }
+                }
+            } else {
+                Box(
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .padding(24.dp),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Text(
+                        text = "Нет доступных мест на выбранную дату",
+
+                    )
+                }
+            }
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 16.dp, vertical = 32.dp),
+                horizontalArrangement = Arrangement.SpaceBetween
+            ) {
+                OutlinedButton(
+                    modifier = Modifier.testTag(TestIds.Book.BOOK_BUTTON),
+                    onClick = { onIntent(BookIntent.Back) }) {
+                    Text("Назад")
+                }
+
+                Button(
+                    modifier = Modifier.testTag(TestIds.Book.BACK_BUTTON),
+                    onClick = { onIntent(BookIntent.Book) },
+                    enabled = state.selectedPlaceId != null
+                ) {
+                    Text("Забронировать")
+                }
+            }
+        }
+    }
+}

app/src/main/java/ru/myitschool/work/ui/screen/book/BookState.kt

@@ -0,0 +1,13 @@
+package ru.myitschool.work.ui.screen.book
+
+import ru.myitschool.work.domain.book.AvailableBookingDate
+
+data class BookState(
+    val selectedDateIndex: Int = 0,
+    val selectedPlaceId: Int? = null,
+    val availableDates: List<AvailableBookingDate> = emptyList(),
+    val isLoading: Boolean = false,
+    val error: String? = null,
+    val isEmpty: Boolean = false,
+    val showError: Boolean = false
+)

app/src/main/java/ru/myitschool/work/ui/screen/book/BookViewModel.kt

@@ -0,0 +1,129 @@
+package ru.myitschool.work.ui.screen.book
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import ru.myitschool.work.AppModule
+import ru.myitschool.work.ui.nav.AppDestination
+import kotlin.collections.getOrNull
+
+
+
+class BookViewModel : ViewModel() {
+
+    private val _state = MutableStateFlow(BookState())
+    val state: StateFlow<BookState> = _state.asStateFlow()
+
+    private val _navigation = MutableSharedFlow<AppDestination>()
+    val navigation: SharedFlow<AppDestination> = _navigation.asSharedFlow()
+
+    init {
+        loadAvailableBookings()
+    }
+
+    fun processIntent(intent: BookIntent) {
+        when (intent) {
+            is BookIntent.DateSelected -> {
+                _state.update {
+                    it.copy(
+                        selectedDateIndex = intent.index,
+                        selectedPlaceId = null
+                    )
+                }
+            }
+            is BookIntent.PlaceSelected -> {
+                _state.update {
+                    it.copy(selectedPlaceId = intent.placeId)
+                }
+            }
+            BookIntent.Book -> {
+                createBooking()
+            }
+            BookIntent.Refresh -> {
+                loadAvailableBookings()
+            }
+            BookIntent.Back -> {
+                backToMain()
+            }
+        }
+    }
+
+    private fun loadAvailableBookings() {
+        viewModelScope.launch {
+            _state.update {
+                it.copy(
+                    isLoading = true,
+                    error = null,
+                    showError = false
+                )
+            }
+
+            val result = AppModule.getAvailableBookingsUseCase()
+
+            if (result.isSuccess) {
+                val availableDates = result.getOrThrow()
+                _state.update {
+                    it.copy(
+                        isLoading = false,
+                        availableDates = availableDates,
+                        isEmpty = availableDates.isEmpty(),
+                        selectedDateIndex = if (availableDates.isNotEmpty()) 0 else 0,
+                        selectedPlaceId = null
+                    )
+                }
+            } else {
+                _state.update {
+                    it.copy(
+                        isLoading = false,
+                        error = result.exceptionOrNull()?.message ?: "Ошибка загрузки",
+                        showError = true
+                    )
+                }
+            }
+        }
+    }
+
+    private fun createBooking() {
+        val currentState = _state.value
+        val selectedDate = currentState.availableDates.getOrNull(currentState.selectedDateIndex)
+        val selectedPlaceId = currentState.selectedPlaceId
+
+        if (selectedDate == null || selectedPlaceId == null) {
+            _state.update { it.copy(error = "Выберите место для бронирования") }
+            return
+        }
+
+        viewModelScope.launch {
+            _state.update { it.copy(isLoading = true, error = null) }
+
+            val result = AppModule.createBookingUseCase(
+                selectedDate.originalDate,
+                selectedPlaceId
+            )
+
+            if (result.isSuccess) {
+                _navigation.emit(AppDestination.Main)
+            } else {
+                _state.update {
+                    it.copy(
+                        isLoading = false,
+                        error = result.exceptionOrNull()?.message ?: "Ошибка бронирования"
+                    )
+                }
+            }
+        }
+    }
+
+    private fun backToMain() {
+        viewModelScope.launch {
+            _navigation.emit(AppDestination.Main)
+        }
+    }
+}

app/src/main/java/ru/myitschool/work/ui/screen/main/MainIntent.kt

@@ -0,0 +1,9 @@
+package ru.myitschool.work.ui.screen.main
+
+sealed class MainIntent {
+    object LoadData : MainIntent()
+    object Logout : MainIntent()
+    object Refresh : MainIntent()
+    object NavigateToBooking : MainIntent()
+    data class BookingSelected(val index: Int) : MainIntent()
+}

app/src/main/java/ru/myitschool/work/ui/screen/main/MainScreen.kt

@@ -0,0 +1,264 @@
+package ru.myitschool.work.ui.screen.main
+
+import androidx.compose.foundation.Image
+
+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.Row
+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.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Card
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilledTonalButton
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.painterResource
+
+import androidx.compose.ui.unit.dp
+
+import coil3.compose.AsyncImagePainter
+import coil3.compose.rememberAsyncImagePainter
+import ru.myitschool.work.R
+import ru.myitschool.work.core.TestIds
+
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun MainScreen(
+    state: MainState,
+    onIntent: (MainIntent) -> Unit
+) {
+
+    if (state.showError) {
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(24.dp),
+            contentAlignment = Alignment.Center
+        ) {
+            Column(
+                horizontalAlignment = Alignment.CenterHorizontally,
+            ) {
+                Text(
+                    modifier = Modifier.testTag(TestIds.Main.ERROR),
+                    text = state.error ?: "Ошибка загрузки",
+                    color = MaterialTheme.colorScheme.error,
+                    style = MaterialTheme.typography.bodyLarge
+                )
+
+                Spacer(Modifier.height(20.dp))
+
+                TextButton(onClick = { onIntent(MainIntent.Refresh) }) {
+                    Text("Повторить")
+                }
+            }
+        }
+        return
+    }
+
+    Scaffold(
+
+        floatingActionButton = {
+            FloatingActionButton(
+                modifier = Modifier.testTag(TestIds.Main.ADD_BUTTON),
+                onClick = { onIntent(MainIntent.NavigateToBooking) }) {
+                Icon(painterResource(id = R.drawable.icon_add), contentDescription = "Бронировать")
+            }
+        }
+
+    ) { padding ->
+
+        when {
+            state.isLoading -> {
+                Box(
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .padding(padding),
+                    contentAlignment = Alignment.Center
+                ) {
+                    CircularProgressIndicator()
+                }
+            }
+
+            else -> {
+                LazyColumn(
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .padding(padding),
+                    verticalArrangement = Arrangement.spacedBy(24.dp)
+                ) {
+
+
+                    item {
+                        Card(
+                            shape = RoundedCornerShape(20.dp),
+                            modifier = Modifier
+                                .padding(start = 16.dp, end = 16.dp, top = 100.dp)
+                                .fillMaxWidth()
+                        ) {
+                            Column(
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .padding(vertical = 24.dp),
+                                horizontalAlignment = Alignment.CenterHorizontally
+                            ) {
+                                val painter = rememberAsyncImagePainter(state.userPhotoUrl)
+                                val painterState = painter.state
+
+                                Box(
+                                    modifier = Modifier
+                                        .size(96.dp)
+                                        .clip(CircleShape)
+                                ) {
+                                    Image(
+                                        painter = painter,
+                                        contentDescription = null,
+                                        contentScale = ContentScale.Crop,
+                                        modifier = Modifier.fillMaxSize().testTag(TestIds.Main.PROFILE_IMAGE)
+
+                                    )
+
+                                    when (painterState) {
+                                        is AsyncImagePainter.State.Loading -> {
+                                            CircularProgressIndicator(
+                                                modifier = Modifier.align(Alignment.Center)
+                                            )
+                                        }
+
+                                        is AsyncImagePainter.State.Error -> {
+                                            Box(
+                                                modifier = Modifier
+                                                    .fillMaxSize()
+                                                    .background(
+                                                        MaterialTheme.colorScheme.surfaceVariant
+                                                    )
+                                            )
+                                        }
+
+                                        else -> Unit
+                                    }
+                                }
+
+                                Spacer(Modifier.height(16.dp))
+
+                                Text(
+                                    modifier = Modifier
+                                        .testTag(TestIds.Main.PROFILE_NAME),
+                                    text = state.userName,
+                                    style = MaterialTheme.typography.headlineMedium
+                                )
+                            }
+                        }
+                    }
+
+
+                    item {
+                        Row(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .padding(horizontal = 16.dp),
+                            horizontalArrangement = Arrangement.spacedBy(12.dp)
+                        ) {
+                            OutlinedButton(
+                                onClick = { onIntent(MainIntent.Logout) },
+                                modifier = Modifier.weight(1f).testTag(TestIds.Main.LOGOUT_BUTTON)
+                            ) {
+                                Text("Выйти")
+                            }
+
+                            FilledTonalButton(
+                                onClick = { onIntent(MainIntent.Refresh) },
+                                modifier = Modifier.weight(1f).testTag(TestIds.Main.REFRESH_BUTTON)
+                            ) {
+                                Text("Обновить")
+                            }
+                        }
+                    }
+
+
+                    item {
+                        Text(
+                            text = "Мои бронирования",
+                            style = MaterialTheme.typography.titleLarge,
+                            modifier = Modifier.padding(horizontal = 16.dp)
+                        )
+                    }
+
+
+                    if (state.bookings.isEmpty()) {
+                        item {
+                            Box(
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .padding(vertical = 32.dp),
+                                contentAlignment = Alignment.Center
+                            ) {
+                                Text(
+                                    text = "Пока нет бронирований",
+                                    style = MaterialTheme.typography.bodyMedium,
+                                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                                )
+                            }
+                        }
+                    } else {
+
+                        itemsIndexed(state.bookings) { index, booking ->
+                            Card(
+                                shape = RoundedCornerShape(16.dp),
+                                modifier = Modifier
+                                    .testTag("main_book_pos_$index")
+                                    .fillMaxWidth()
+                                    .padding(horizontal = 16.dp)
+                            ) {
+                                Column(
+                                    modifier = Modifier.padding(16.dp)
+                                ) {
+                                    Text(
+                                        modifier = Modifier.testTag(TestIds.Main.ITEM_DATE),
+                                        text = booking.date,
+                                        style = MaterialTheme.typography.titleMedium
+                                    )
+
+                                    Spacer(Modifier.height(4.dp))
+
+                                    Text(
+                                        modifier = Modifier.testTag(TestIds.Main.ITEM_PLACE),
+                                        text = booking.place,
+                                        style = MaterialTheme.typography.bodyMedium,
+                                        color = MaterialTheme.colorScheme.onSurfaceVariant
+                                    )
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+
+}

app/src/main/java/ru/myitschool/work/ui/screen/main/MainState.kt

@@ -0,0 +1,16 @@
+package ru.myitschool.work.ui.screen.main
+
+data class MainState(
+    val isLoading: Boolean = false,
+    val userName: String = "",
+    val userPhotoUrl: String = "",
+    val bookings: List<BookingItem> = emptyList(),
+    val error: String? = null,
+    val showError: Boolean = false
+)
+
+data class BookingItem(
+    val date: String,
+    val place: String,
+    val originalDate: String
+)

app/src/main/java/ru/myitschool/work/ui/screen/main/MainViewModel.kt

@@ -0,0 +1,84 @@
+package ru.myitschool.work.ui.screen.main
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import ru.myitschool.work.AppModule
+import ru.myitschool.work.ui.nav.AppDestination
+
+class MainViewModel : ViewModel() {
+
+    private val _state = MutableStateFlow(MainState())
+    val state: StateFlow<MainState> = _state.asStateFlow()
+
+    private val _navigation = MutableSharedFlow<AppDestination>()
+    val navigation: SharedFlow<AppDestination> = _navigation.asSharedFlow()
+
+    init {
+        loadUserInfo()
+    }
+
+    fun processIntent(intent: MainIntent) {
+        when (intent) {
+            MainIntent.LoadData -> loadUserInfo()
+            MainIntent.Logout -> logout()
+            MainIntent.Refresh -> refresh()
+            MainIntent.NavigateToBooking -> navigateToBooking()
+            is MainIntent.BookingSelected -> {
+
+            }
+        }
+    }
+
+    private fun loadUserInfo() {
+        viewModelScope.launch {
+            _state.update { it.copy(isLoading = true, error = null, showError = false) }
+
+            val result = AppModule.getUserInfoUseCase()
+
+            if (result.isSuccess) {
+                val userInfo = result.getOrThrow()
+                _state.update {
+                    it.copy(
+                        isLoading = false,
+                        userName = userInfo.name,
+                        userPhotoUrl = userInfo.photoUrl,
+                        bookings = userInfo.bookings
+                    )
+                }
+            } else {
+                _state.update {
+                    it.copy(
+                        isLoading = false,
+                        error = result.exceptionOrNull()?.message ?: "Ошибка загрузки",
+                        showError = true
+                    )
+                }
+            }
+        }
+    }
+
+    private fun logout() {
+        viewModelScope.launch {
+            AppModule.logoutUseCase()
+            _navigation.emit(AppDestination.Auth)
+        }
+    }
+
+    private fun refresh() {
+        loadUserInfo()
+    }
+
+    private fun navigateToBooking() {
+        viewModelScope.launch {
+            _navigation.emit(AppDestination.Book)
+        }
+    }
+}

app/src/main/res/drawable/icon_add.xml

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+    
+</vector>

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

@@ -7,4 +7,5 @@
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="primary_blue">#517DFF</color>
 </resources>