app/build.gradle.kts

@@ -35,6 +35,10 @@ android {
 }
 
 dependencies {
+    implementation("androidx.compose.material3:material3:1.4.0")
+    implementation("androidx.compose.runtime:runtime:1.10.0")
+    implementation("androidx.compose.foundation:foundation-layout:1.10.0")
+    implementation("androidx.compose.foundation:foundation:1.10.0")
     defaultComposeLibrary()
     implementation("androidx.datastore:datastore-preferences:1.1.7")
     implementation("org.jetbrains.kotlinx:kotlinx-collections-immutable:0.4.0")
@@ -48,4 +52,5 @@ dependencies {
     implementation("io.ktor:ktor-client-content-negotiation:$ktor")
     implementation("io.ktor:ktor-serialization-kotlinx-json:$ktor")
     implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.9.0")
+    implementation("io.coil-kt:coil-compose:2.6.0")
 }

app/src/main/AndroidManifest.xml

@@ -19,10 +19,9 @@
             android:name=".ui.root.RootActivity"
             android:exported="true"
             android:windowSoftInputMode="adjustResize"
-            android:label="@string/title_activity_root">
+            android:theme="@style/Theme.Work">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>

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

@@ -1,7 +1,7 @@
 package ru.myitschool.work.core
 
 object Constants {
-    const val HOST = "http://10.0.2.2:8080"
+    const val HOST = "http://192.168.0.111:8080"
     const val AUTH_URL = "/auth"
     const val INFO_URL = "/info"
     const val BOOKING_URL = "/booking"

app/src/main/java/ru/myitschool/work/data/models/BookingInfo.kt

@@ -0,0 +1,9 @@
+package ru.myitschool.work.data.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class BookingInfo(
+    val id: Int,
+    val place: String
+)

app/src/main/java/ru/myitschool/work/data/models/UserInfo.kt

@@ -0,0 +1,10 @@
+package ru.myitschool.work.data.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class UserInfo(
+    val name: String,
+    val photoUrl: String,
+    val booking: Map<String, BookingInfo>
+)

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

@@ -5,6 +5,14 @@ import ru.myitschool.work.data.source.NetworkDataSource
 object AuthRepository {
 
     private var codeCache: String? = null
+    fun clearCode() {
+        codeCache = null
+    }
+
+    fun getCode(): String? {
+        return codeCache
+    }
+
 
     suspend fun checkAndSave(text: String): Result<Boolean> {
         return NetworkDataSource.checkAuth(text).onSuccess { success ->

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

@@ -11,32 +11,75 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import kotlinx.serialization.json.Json
 import ru.myitschool.work.core.Constants
+import ru.myitschool.work.data.models.UserInfo
 
 object NetworkDataSource {
+    private val json = Json {
+        isLenient = true
+        ignoreUnknownKeys = true
+        explicitNulls = true
+        encodeDefaults = true
+    }
+
     private val client by lazy {
         HttpClient(CIO) {
             install(ContentNegotiation) {
-                json(
+                json(json)
-                    Json {
-                        isLenient = true
-                        ignoreUnknownKeys = true
-                        explicitNulls = true
-                        encodeDefaults = true
-                    }
-                )
             }
         }
     }
 
+    suspend fun getUserInfo(code: String): Result<UserInfo> = withContext(Dispatchers.IO) {
+        val url = getUrl(code, "/info")
+
+        println("➡ Request URL: $url")
+
+        runCatching {
+            val response = client.get(url)
+
+            println("⬅ Response status: ${response.status}")
+
+            when (response.status) {
+                HttpStatusCode.OK -> {
+                    val body = response.bodyAsText()
+                    println("⬅ Response body: $body")
+                    json.decodeFromString<UserInfo>(body)
+                }
+                HttpStatusCode.Unauthorized -> error("Код не существует")
+                HttpStatusCode.BadRequest -> error("Что-то пошло не так")
+                else -> error("Неизвестная ошибка: ${response.status}")
+            }
+        }.recoverCatching { e ->
+            println("❌ Error: ${e.message}")
+            throw Exception(e.message)
+        }
+    }
+
     suspend fun checkAuth(code: String): Result<Boolean> = withContext(Dispatchers.IO) {
-        return@withContext runCatching {
+        val url = getUrl(code, Constants.AUTH_URL)
-            val response = client.get(getUrl(code, Constants.AUTH_URL))
+
+        println("➡ Request URL: $url")
+
+        runCatching {
+            val response = client.get(url)
+
+            println("⬅ Response status: ${response.status}")
+            println("⬅ Response body: ${response.bodyAsText()}")
+
             when (response.status) {
                 HttpStatusCode.OK -> true
-                else -> error(response.bodyAsText())
+                HttpStatusCode.Unauthorized -> error("Код не существует")
+                HttpStatusCode.BadRequest -> error("Что-то пошло не так")
+                else -> error("Неизвестная ошибка: ${response.status}")
             }
+        }.mapCatching { success ->
+            success
+        }.recoverCatching { e ->
+            println("❌ Error: ${e.message}")
+            throw Exception(e.message)
         }
     }
 
+
     private fun getUrl(code: String, targetUrl: String) = "${Constants.HOST}/api/$code$targetUrl"
 }

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

@@ -0,0 +1,11 @@
+package ru.myitschool.work.domain
+
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.data.source.NetworkDataSource
+
+class GetUserInfoUseCase {
+    suspend operator fun invoke() = runCatching {
+        val code = AuthRepository.getCode() ?: error("Вы не авторизованы")
+        NetworkDataSource.getUserInfo(code).getOrThrow()
+    }
+}

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

@@ -7,6 +7,7 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 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
@@ -15,6 +16,9 @@ import ru.myitschool.work.ui.nav.AuthScreenDestination
 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.book.BookScreen
+import ru.myitschool.work.ui.screen.book.BookViewModel
+import ru.myitschool.work.ui.screen.main.MainScreen
 
 @Composable
 fun AppNavHost(
@@ -27,23 +31,27 @@ fun AppNavHost(
         exitTransition = { ExitTransition.None },
         navController = navController,
         startDestination = AuthScreenDestination,
+//        startDestination = MainScreenDestination,
     ) {
         composable<AuthScreenDestination> {
             AuthScreen(navController = navController)
         }
         composable<MainScreenDestination> {
-            Box(
+            MainScreen(navController = navController)
-                contentAlignment = Alignment.Center
-            ) {
-                Text(text = "Hello")
-            }
         }
         composable<BookScreenDestination> {
-            Box(
+            val vm: BookViewModel = viewModel()
-                contentAlignment = Alignment.Center
+
-            ) {
+            BookScreen(
-                Text(text = "Hello")
+                vm = vm,
-            }
+                onBack = { navController.popBackStack() },
+                onSuccess = {
+                    navController.popBackStack()
+                    navController.navigate(MainScreenDestination) {
+                        launchSingleTop = true
+                    }
+                }
+            )
         }
     }
 }

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

@@ -31,6 +31,13 @@ import androidx.navigation.NavController
 import ru.myitschool.work.R
 import ru.myitschool.work.core.TestIds
 import ru.myitschool.work.ui.nav.MainScreenDestination
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.layout.imePadding
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
 
 @Composable
 fun AuthScreen(
@@ -48,49 +55,92 @@ fun AuthScreen(
     Column(
         modifier = Modifier
             .fillMaxSize()
-            .padding(all = 24.dp),
+            .imePadding()
+            .padding(24.dp),
         horizontalAlignment = Alignment.CenterHorizontally,
         verticalArrangement = Arrangement.Center
     ) {
-        Text(
+        when (state) {
-            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 -> {
-                CircularProgressIndicator(
+                CircularProgressIndicator(modifier = Modifier.size(64.dp))
-                    modifier = Modifier.size(64.dp)
+            }
-                )
+
+            else -> {
+                Content(viewModel, state)
             }
         }
     }
 }
 
+
 @Composable
 private fun Content(
     viewModel: AuthViewModel,
-    state: AuthState.Data
+    state: AuthState
 ) {
     var inputText by remember { mutableStateOf("") }
+
+    val isButtonEnabled =
+        inputText.length == 4 && inputText.all { it.isLetterOrDigit() }
+
+    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(),
+        modifier = Modifier
+            .fillMaxWidth()
+            .testTag(TestIds.Auth.CODE_INPUT),
         value = inputText,
         onValueChange = {
-            inputText = it
+            if (it.length <= 4 && it.all { ch -> ch.isLetterOrDigit() }) {
+                inputText = it
+            }
             viewModel.onIntent(AuthIntent.TextInput(it))
         },
+        keyboardOptions = KeyboardOptions.Default.copy(
+            imeAction = ImeAction.Done
+        ),
+        keyboardActions = KeyboardActions(
+            onDone = {
+                viewModel.onIntent(AuthIntent.Send(inputText))
+            }
+        ),
+        singleLine = true,
         label = { Text(stringResource(R.string.auth_label)) }
     )
+
+    Spacer(modifier = Modifier.size(12.dp))
+
+    AnimatedVisibility(
+        visible = state is AuthState.Error,
+        enter = fadeIn(),
+        exit = fadeOut()
+    ) {
+        (state as? AuthState.Error)?.let { errorState ->
+            Text(
+                text = errorState.message,
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.error,
+                textAlign = TextAlign.Center
+            )
+        }
+    }
+
     Spacer(modifier = Modifier.size(16.dp))
+
     Button(
-        modifier = Modifier.testTag(TestIds.Auth.SIGN_BUTTON).fillMaxWidth(),
+        modifier = Modifier
+            .fillMaxWidth()
+            .testTag(TestIds.Auth.SIGN_BUTTON),
         onClick = {
             viewModel.onIntent(AuthIntent.Send(inputText))
         },
-        enabled = true
+        enabled = isButtonEnabled
     ) {
         Text(stringResource(R.string.auth_sign_in))
     }

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

@@ -1,6 +1,7 @@
 package ru.myitschool.work.ui.screen.auth
 
-sealed interface AuthState {
+sealed class AuthState {
-    object Loading: AuthState
+    data object Data : AuthState()
-    object Data: AuthState
+    data object Loading : AuthState()
+    data class Error(val message: String) : AuthState()
 }

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

@@ -13,31 +13,39 @@ import kotlinx.coroutines.launch
 import ru.myitschool.work.data.repo.AuthRepository
 import ru.myitschool.work.domain.auth.CheckAndSaveAuthCodeUseCase
 
-class AuthViewModel : ViewModel() {
+class AuthViewModel() : ViewModel() {
-    private val checkAndSaveAuthCodeUseCase by lazy { CheckAndSaveAuthCodeUseCase(AuthRepository) }
+    private val checkAndSaveAuthCodeUseCase by lazy {
+        CheckAndSaveAuthCodeUseCase(AuthRepository)
+    }
+
     private val _uiState = MutableStateFlow<AuthState>(AuthState.Data)
     val uiState: StateFlow<AuthState> = _uiState.asStateFlow()
 
-    private val _actionFlow: MutableSharedFlow<Unit> = MutableSharedFlow()
+    private val _actionFlow = MutableSharedFlow<Unit>()
     val actionFlow: SharedFlow<Unit> = _actionFlow
 
     fun onIntent(intent: AuthIntent) {
         when (intent) {
+
             is AuthIntent.Send -> {
-                viewModelScope.launch(Dispatchers.Default) {
+                viewModelScope.launch(Dispatchers.IO) {
-                    _uiState.update { AuthState.Loading }
+                    _uiState.value = AuthState.Loading
-                    checkAndSaveAuthCodeUseCase.invoke("9999").fold(
+
+                    checkAndSaveAuthCodeUseCase.invoke(intent.text).fold(
                         onSuccess = {
                             _actionFlow.emit(Unit)
                         },
-                        onFailure = { error ->
+                        onFailure = { throwable ->
-                            error.printStackTrace()
+                            val errorMessage = throwable.message ?: "Неизвестная ошибка"
-                            _actionFlow.emit(Unit)
+                            _uiState.value = AuthState.Error(errorMessage)
                         }
                     )
                 }
             }
-            is AuthIntent.TextInput -> Unit
+
+            is AuthIntent.TextInput -> {
+                _uiState.value = AuthState.Data
+            }
         }
     }
 }

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

@@ -0,0 +1,12 @@
+package ru.myitschool.work.ui.screen.book
+
+import java.time.LocalDate
+
+sealed interface BookIntent {
+    object Load : BookIntent
+    data class SelectDate(val date: LocalDate) : BookIntent
+    data class SelectPlace(val placeId: String) : BookIntent
+    object ConfirmBooking : BookIntent
+    object Refresh : BookIntent
+    object Back : BookIntent
+}

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

@@ -0,0 +1,212 @@
+package ru.myitschool.work.ui.screen.book
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.PrimaryScrollableTabRow
+import androidx.compose.material3.ScrollableTabRow
+import androidx.compose.material3.TabRowDefaults
+import androidx.compose.material3.Text
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.MutableIntState
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import ru.myitschool.work.ui.nav.MainScreenDestination
+
+/*
+Экран бронирования
+На данном экране необходимо вывести возможные даты и места для бронирования.
+
+Элементы, которые должны присутствовать на экране:
+Группа вкладок. Каждая вкладка (book_date_pos_{индекс}) содержит текстовое поле (book_date) с датой бронирования в формате dd.MM.
+
+В зависимости от выбранной даты необходимо отобразить группу с единственным выбором (пояснения на изображении ниже). Каждый элемент группы (book_place_pos_{индекс}) кликабелен и содержит:
+    Текстовое поле (book_place_text), в котором содержится место доступное для брони.
+    Селектор (book_place_selector), который отображает, выбран элемент или нет. У данного элемента обязательно наличие: (Modifier.selectable)
+
+Кнопка (book_book_button) для бронирования.
+Кнопка (book_back_button) для возвращения на предыдущий экран.
+По умолчанию неотображаемое текстовое поле с ошибкой (book_error). Отметим, что это поле не должно рендериться.
+По умолчанию неотображаемая кнопка обновить (book_refresh_button).
+По умолчанию неотображаемый текст “Всё забронировано” (book_empty).
+
+Требования к компонентам:
+По умолчанию выбирается самая ранняя доступная дата (например, из набора "5 января", "6 января", "9 января" будет показана дата "5 января").
+Список дат отсортирован по возрастанию. Даты без доступных мест для бронирования необходимо не отображать.
+Если нет доступных для бронирования дат, необходимо скрыть все элементы, кроме элементов из п. 4 и 7.
+В случае ошибки при получении данных о доступном бронировании в запросе api/<CODE>/booking, необходимо отобразить элемент из п. 4, 5 и 6 с возможностью обновить данные.
+При успешном бронировании нужно закрыть текущий экран и вернуться на главный, обновив его.
+ */
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.foundation.selection.selectable
+import androidx.compose.foundation.selection.selectableGroup
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.SecondaryScrollableTabRow
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.draw.clip
+import ru.myitschool.work.ui.screen.auth.AuthIntent
+import java.time.format.DateTimeFormatter
+
+@Composable
+fun BookScreen(
+    vm: BookViewModel,
+    onBack: () -> Unit,
+    onSuccess: () -> Unit
+) {
+    val state by vm.state.collectAsStateWithLifecycle()
+
+    LaunchedEffect(Unit) {
+        vm.accept(BookIntent.Load)
+    }
+
+    LaunchedEffect(state.bookingSuccess) {
+        if (state.bookingSuccess) {
+            onSuccess()
+        }
+    }
+
+    when {
+        state.loading -> {
+            Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                CircularProgressIndicator()
+            }
+        }
+
+        state.error -> ErrorBlock(
+            onRefresh = { vm.accept(BookIntent.Refresh) },
+            onBack = { onBack() }
+        )
+
+        state.isEmpty -> EmptyBlock(
+            onBack = { onBack() }
+        )
+
+        else -> ContentBlock(
+            state = state,
+            onDateClick = { vm.accept(BookIntent.SelectDate(it)) },
+            onPlaceClick = { vm.accept(BookIntent.SelectPlace(it)) },
+            onConfirm = { vm.accept(BookIntent.ConfirmBooking) },
+            onBack = { onBack() }
+        )
+    }
+}
+
+@Composable
+private fun ContentBlock(
+    state: BookState,
+    onDateClick: (java.time.LocalDate) -> Unit,
+    onPlaceClick: (String) -> Unit,
+    onConfirm: () -> Unit,
+    onBack: () -> Unit
+) {
+    val f = DateTimeFormatter.ofPattern("dd.MM")
+
+    Column(Modifier.fillMaxSize().padding(16.dp)) {
+
+        PrimaryScrollableTabRow(
+            selectedTabIndex = state.dates.indexOfFirst { it.date == state.selectedDate }
+        ) {
+            state.dates.forEachIndexed { index, item ->
+                Tab(
+                    selected = state.selectedDate == item.date,
+                    onClick = { onDateClick(item.date) },
+                    text = { Text(item.date.format(f)) }
+                )
+            }
+        }
+
+        Spacer(Modifier.height(16.dp))
+
+        // группа единственного выбора
+        Column(Modifier.selectableGroup()) {
+            state.availablePlaces.forEach { place ->
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clip(RoundedCornerShape(16.dp))
+                        .selectable(
+                            selected = state.selectedPlaceId == place.id,
+                            onClick = { onPlaceClick(place.id) }
+                        )
+                        .padding(horizontal = 8.dp, vertical = 8.dp),
+                    horizontalArrangement = Arrangement.SpaceBetween,
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        modifier = Modifier
+                            .padding(horizontal = 4.dp, vertical = 0.dp),
+                        text = place.title
+                    )
+
+                    RadioButton(
+                        selected = state.selectedPlaceId == place.id,
+                        onClick = { onPlaceClick(place.id) }
+                    )
+                }
+            }
+        }
+
+        Spacer(Modifier.height(24.dp))
+
+        Button(
+            enabled = state.selectedPlaceId != null,
+            onClick = onConfirm,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text("Бронировать")
+        }
+
+        Spacer(Modifier.height(12.dp))
+
+        TextButton(onClick = onBack, modifier = Modifier.fillMaxWidth()) {
+            Text("Назад")
+        }
+    }
+}
+
+
+@Composable
+fun ErrorBlock(onRefresh: () -> Unit, onBack: () -> Unit) {
+    Column(
+        Modifier.fillMaxSize().padding(16.dp),
+        verticalArrangement = Arrangement.Center
+    ) {
+        Text("Ошибка загрузки", style = MaterialTheme.typography.titleMedium)
+        Spacer(Modifier.height(12.dp))
+        Button(onClick = onRefresh, modifier = Modifier.fillMaxWidth()) {
+            Text("Обновить")
+        }
+        Spacer(Modifier.height(12.dp))
+        TextButton(onClick = onBack, modifier = Modifier.fillMaxWidth()) {
+            Text("Назад")
+        }
+    }
+}
+
+@Composable
+fun EmptyBlock(onBack: () -> Unit) {
+    Column(
+        Modifier.fillMaxSize().padding(16.dp),
+        verticalArrangement = Arrangement.Center
+    ) {
+        Text("Всё забронировано", style = MaterialTheme.typography.titleMedium)
+        Spacer(Modifier.height(16.dp))
+        TextButton(onClick = onBack, modifier = Modifier.fillMaxWidth()) {
+            Text("Назад")
+        }
+    }
+}

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

@@ -0,0 +1,17 @@
+package ru.myitschool.work.ui.screen.book
+import java.time.LocalDate
+
+data class BookState(
+    val loading: Boolean = true,
+    val error: Boolean = false,
+    val dates: List<BookingDate> = emptyList(),
+    val selectedDate: LocalDate? = null,
+    val selectedPlaceId: String? = null,
+    val bookingSuccess: Boolean = false
+) {
+    val availablePlaces: List<BookingPlace>
+        get() = dates.firstOrNull { it.date == selectedDate }?.places ?: emptyList()
+
+    val isEmpty: Boolean
+        get() = dates.isEmpty()
+}

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

@@ -0,0 +1,141 @@
+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.asStateFlow
+import kotlinx.coroutines.launch
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.domain.auth.CheckAndSaveAuthCodeUseCase
+
+import java.time.LocalDate
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+
+data class BookingDate(
+    val date: LocalDate,
+    val places: List<BookingPlace>
+)
+
+data class BookingPlace(
+    val id: String,
+    val title: String
+)
+
+class BookViewModel : ViewModel() {
+
+    private val _state = MutableStateFlow(BookState())
+    val state = _state.asStateFlow()
+
+    fun accept(intent: BookIntent) {
+        when (intent) {
+            is BookIntent.Load -> load()
+            is BookIntent.SelectDate -> selectDate(intent.date)
+            is BookIntent.SelectPlace -> selectPlace(intent.placeId)
+            is BookIntent.ConfirmBooking -> book()
+            is BookIntent.Refresh -> load()
+            is BookIntent.Back -> {} // обработка навигации снаружи
+        }
+    }
+
+    private fun load() {
+        viewModelScope.launch {
+            _state.value = BookState(loading = true)
+
+            delay(400) // имитация ожидания API
+
+            val result = fakeApi()
+
+            if (result.isEmpty()) {
+                _state.value = BookState(
+                    dates = emptyList(),
+                    loading = false
+                )
+                return@launch
+            }
+
+            val earliest = result.minBy { it.date }
+
+            _state.value = BookState(
+                dates = result,
+                selectedDate = earliest.date,
+                loading = false
+            )
+        }
+    }
+
+    private fun selectDate(date: LocalDate) {
+        _state.value = _state.value.copy(
+            selectedDate = date,
+            selectedPlaceId = null
+        )
+    }
+
+    private fun selectPlace(placeId: String) {
+        _state.value = _state.value.copy(selectedPlaceId = placeId)
+    }
+
+    private fun book() {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(loading = true)
+
+            delay(300) // фейковое бронирование
+
+            _state.value = _state.value.copy(
+                bookingSuccess = true,
+                loading = false
+            )
+        }
+    }
+
+    private fun fakeApi(): List<BookingDate> {
+        return listOf(
+            BookingDate(
+                LocalDate.of(2025, 1, 5),
+                listOf(
+                    BookingPlace("1", "Окно №1"),
+                    BookingPlace("2", "Окно №3")
+                )
+            ),
+            BookingDate(
+                LocalDate.of(2025, 1, 6),
+                listOf(
+                    BookingPlace("3", "Окно №2")
+                )
+            ),
+            BookingDate(
+                LocalDate.of(2025, 1, 9),
+                emptyList() // будет скрыто
+            ),
+            BookingDate(
+                LocalDate.of(2025, 1, 10),
+                listOf(
+                    BookingPlace("3", "Окно №2")
+                )
+            ),
+            BookingDate(
+                LocalDate.of(2025, 1, 11),
+                listOf(
+                    BookingPlace("3", "Окно №2")
+                )
+            ),
+            BookingDate(
+                LocalDate.of(2025, 1, 12),
+                listOf(
+                    BookingPlace("3", "Окно №2")
+                )
+            ),
+            BookingDate(
+                LocalDate.of(2025, 1, 13),
+                listOf(
+                    BookingPlace("3", "Окно №2")
+                )
+            ),
+        ).filter { it.places.isNotEmpty() }
+    }
+}

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

@@ -0,0 +1,6 @@
+package ru.myitschool.work.ui.screen.main
+
+sealed interface MainIntent {
+    data class Send(val text: String): MainIntent
+    data class TextInput(val text: String): MainIntent
+}

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

@@ -0,0 +1,238 @@
+package ru.myitschool.work.ui.screen.main
+
+import androidx.compose.foundation.layout.Arrangement
+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.imePadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+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.compose.ui.draw.clip
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import coil3.compose.AsyncImage
+import ru.myitschool.work.R
+import ru.myitschool.work.core.TestIds
+import ru.myitschool.work.data.models.UserInfo
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.ui.nav.AuthScreenDestination
+import ru.myitschool.work.ui.nav.BookScreenDestination
+
+@Composable
+fun MainScreen(
+    viewModel: MainViewModel = viewModel(),
+    navController: NavController
+) {
+    val state by viewModel.uiState.collectAsState()
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .imePadding()
+            .padding(20.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Top
+    ) {
+
+        when (val s = state) {
+            is MainState.Error -> {
+                Text(
+                    text = s.message,
+                    color = MaterialTheme.colorScheme.error,
+                    textAlign = TextAlign.Center,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .testTag(TestIds.Main.ERROR)
+                )
+                Spacer(modifier = Modifier.size(8.dp))
+                Button(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .testTag(TestIds.Main.REFRESH_BUTTON),
+                    onClick = viewModel::onRefresh
+                ) {
+                    Text(stringResource(R.string.refresh))
+                }
+            }
+            is MainState.Loading -> {
+                CircularProgressIndicator()
+            }
+            is MainState.Data -> {
+                MainContent(
+                    userInfo = s.userInfo,
+                    navController = navController,
+                    onRefresh = viewModel::onRefresh
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun MainContent(
+    userInfo: UserInfo,
+    navController: NavController,
+    onRefresh: () -> Unit
+) {
+    val bookings = remember {
+        userInfo.booking.entries.sortedBy { it.key }.map { Booking(it.key, it.value.place) }
+    }
+
+    Column(
+        modifier = Modifier.fillMaxSize()
+    ) {
+        Button(
+            modifier = Modifier
+                .fillMaxWidth()
+                .testTag(TestIds.Main.REFRESH_BUTTON),
+            onClick = onRefresh
+        ) {
+            Text(stringResource(R.string.refresh))
+        }
+
+        Spacer(modifier = Modifier.size(8.dp))
+
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.Start,
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            AsyncImage(
+                model = userInfo.photoUrl,
+                contentDescription = null,
+                contentScale = ContentScale.Crop,
+                modifier = Modifier
+                    .size(60.dp)
+                    .clip(CircleShape)
+            )
+            Spacer(modifier = Modifier.size(16.dp))
+            Text(
+                text = userInfo.name,
+                style = MaterialTheme.typography.titleLarge
+            )
+        }
+
+        Spacer(modifier = Modifier.size(8.dp))
+
+        Button(
+            modifier = Modifier.fillMaxWidth(),
+            colors = ButtonDefaults.buttonColors(
+                containerColor = MaterialTheme.colorScheme.error
+            ),
+            onClick = {
+                AuthRepository.clearCode()
+                navController.navigate(AuthScreenDestination)
+            },
+        ) {
+            Text(stringResource(R.string.logout))
+        }
+
+        Spacer(modifier = Modifier.size(8.dp))
+
+        Button(
+            modifier = Modifier.fillMaxWidth(),
+            onClick = { navController.navigate(BookScreenDestination) }
+        ) {
+            Text(stringResource(R.string.book_new))
+        }
+
+        Spacer(modifier = Modifier.size(8.dp))
+
+        Scaffold(
+            modifier = Modifier.fillMaxSize()
+        ) { paddingValues ->
+            LazyColumn(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(paddingValues)
+            ) {
+                itemsIndexed(
+                    items = bookings,
+                    key = { index, item -> "main_book_pos_$index" }
+                ) { index, booking ->
+                    BookCard(
+                        date = booking.date,
+                        place = booking.place,
+                        modifier = Modifier.padding(
+                            top = if (index == 0) 0.dp else 4.dp,
+                            bottom = if (index == bookings.lastIndex) 0.dp else 4.dp
+                        )
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun BookCard(
+    date: String,
+    place: String,
+    modifier: Modifier = Modifier
+) {
+    val formattedDate = remember(date) {
+        runCatching {
+            java.time.LocalDate.parse(date).format(java.time.format.DateTimeFormatter.ofPattern("dd.MM.yyyy"))
+        }.getOrElse { date }
+    }
+
+    Card(
+        colors = CardDefaults.cardColors(
+            containerColor = MaterialTheme.colorScheme.surfaceVariant,
+        ),
+        modifier = modifier.fillMaxWidth()
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(16.dp)
+        ) {
+            Text(
+                text = "Бронь на $formattedDate",
+                style = MaterialTheme.typography.titleMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier
+                    .testTag(TestIds.Main.ITEM_DATE)
+            )
+
+            Spacer(modifier = Modifier.size(8.dp))
+
+            Text(
+                text = place,
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier
+                    .testTag(TestIds.Main.ITEM_PLACE)
+            )
+        }
+    }
+}
+
+data class Booking(
+    val date: String,
+    val place: String
+)

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

@@ -0,0 +1,9 @@
+package ru.myitschool.work.ui.screen.main
+
+import ru.myitschool.work.data.models.UserInfo
+
+sealed interface MainState {
+    object Loading : MainState
+    data class Error(val message: String) : MainState
+    data class Data(val userInfo: UserInfo) : MainState
+}

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

@@ -0,0 +1,35 @@
+package ru.myitschool.work.ui.screen.main
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import ru.myitschool.work.domain.GetUserInfoUseCase
+
+class MainViewModel : ViewModel() {
+
+    private val _uiState = MutableStateFlow<MainState>(MainState.Loading)
+    val uiState = _uiState.asStateFlow()
+
+    private val getUserInfoUseCase = GetUserInfoUseCase()
+
+    init {
+        loadData()
+    }
+
+    fun onRefresh() {
+        loadData()
+    }
+
+    private fun loadData() {
+        viewModelScope.launch {
+            _uiState.value = MainState.Loading
+            getUserInfoUseCase().onSuccess {
+                _uiState.value = MainState.Data(it)
+            }.onFailure {
+                _uiState.value = MainState.Error(it.message ?: "Unknown error")
+            }
+        }
+    }
+}

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

@@ -1,7 +1,9 @@
 <resources>
     <string name="app_name">Work</string>
-    <string name="title_activity_root">RootActivity</string>
     <string name="auth_title">Привет! Введи код для авторизации</string>
     <string name="auth_label">Код</string>
     <string name="auth_sign_in">Войти</string>
+    <string name="logout">Выйти</string>
+    <string name="refresh">Обновить данные</string>
+    <string name="book_new">Новая бронь</string>
 </resources>

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

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="Theme.Work" parent="Theme.Material3.DayNight.NoActionBar">
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+</resources>