33 changed files with 1179 additions and 50 deletions
--- a/app/src/main/java/ru/myitschool/work/core/Constants.kt
+++ b/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://192.168.1.39:8080"
    const val AUTH_URL = "/auth"
    const val INFO_URL = "/info"
    const val BOOKING_URL = "/booking"
--- a/app/src/main/java/ru/myitschool/work/core/OurConstants.kt
+++ b/app/src/main/java/ru/myitschool/work/core/OurConstants.kt
@@ -0,0 +1,9 @@
+package ru.myitschool.work.core
+
+import androidx.datastore.preferences.core.intPreferencesKey
+
+// Не добавляйте ничего, что уже есть в Constants!
+object OurConstants {
+    const val SHABLON = "^[a-zA-Z0-9]*\$"
+    const val DS_AUTH_KEY = "authkey"
+}
--- a/app/src/main/java/ru/myitschool/work/core/Utils.kt
+++ b/app/src/main/java/ru/myitschool/work/core/Utils.kt
@@ -0,0 +1,11 @@
+package ru.myitschool.work.core
+
+import ru.myitschool.work.core.OurConstants.SHABLON
+
+class Utils {
+    companion object {
+        fun CheckCodeInput(text : String) : Boolean{
+            return !text.isEmpty() && text.length == 4 && text.matches(Regex(SHABLON))
+        }
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/data/entity/Booking.kt
+++ b/app/src/main/java/ru/myitschool/work/data/entity/Booking.kt
@@ -0,0 +1,11 @@
+package ru.myitschool.work.data.entity
+
+import java.time.LocalDate
+
+
+data class Booking ( val id: Long,
+         val date: LocalDate,
+         val place: Place,
+         val employeeCode: String){
+
+}
--- a/app/src/main/java/ru/myitschool/work/data/entity/Employee.kt
+++ b/app/src/main/java/ru/myitschool/work/data/entity/Employee.kt
@@ -0,0 +1,9 @@
+package ru.myitschool.work.data.entity
+
+data class Employee (
+         val name: String,
+         val code: String,
+         val photoUrl: String,
+         val bookingList: MutableList<Booking?>) {
+
+}
--- a/app/src/main/java/ru/myitschool/work/data/entity/Place.kt
+++ b/app/src/main/java/ru/myitschool/work/data/entity/Place.kt
@@ -0,0 +1,5 @@
+package ru.myitschool.work.data.entity
+
+data class Place(
+    val id: Long,
+    val place: String ){}
--- a/app/src/main/java/ru/myitschool/work/data/repo/AuthRepository.kt
+++ b/app/src/main/java/ru/myitschool/work/data/repo/AuthRepository.kt
@@ -1,16 +1,21 @@
 package ru.myitschool.work.data.repo

+
+import android.util.Log
+import io.ktor.client.statement.bodyAsText
+import ru.myitschool.work.data.source.DataStoreDataSource.createAuthCode
 import ru.myitschool.work.data.source.NetworkDataSource

-object AuthRepository {

+object AuthRepository {
    private var codeCache: String? = null

    suspend fun checkAndSave(text: String): Result<Boolean> {
-        return NetworkDataSource.checkAuth(text).onSuccess { success ->
-            if (success) {
+        val result = NetworkDataSource.checkAuth(text)
+        if (result.isSuccess) {
            codeCache = text
-            }
-        }
+            createAuthCode(code = text)
+        }
+        return result
    }
 }
--- a/app/src/main/java/ru/myitschool/work/data/repo/BookingRepository.kt
+++ b/app/src/main/java/ru/myitschool/work/data/repo/BookingRepository.kt
@@ -0,0 +1,25 @@
+package ru.myitschool.work.data.repo
+
+import ru.myitschool.work.data.entity.Place
+import ru.myitschool.work.data.source.DataStoreDataSource
+import ru.myitschool.work.data.source.NetworkDataSource
+import java.time.LocalDate
+
+class BookingRepository {
+
+    suspend fun getAvailableBookings(): Result<Map<LocalDate, List<Place>>> {
+        val code = DataStoreDataSource.getAuthCode()
+        if (code.isEmpty() || code == "0") {
+            return Result.failure(Exception("Auth code not found"))
+        }
+        return NetworkDataSource.getAvailableBookings(code)
+    }
+
+    suspend fun createBooking(date: LocalDate, placeId: Long): Result<Boolean> {
+        val code = DataStoreDataSource.getAuthCode()
+        if (code.isEmpty() || code == "0") {
+            return Result.failure(Exception("Auth code not found"))
+        }
+        return NetworkDataSource.createBooking(code, date, placeId)
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/data/repo/MainRepository.kt
+++ b/app/src/main/java/ru/myitschool/work/data/repo/MainRepository.kt
@@ -0,0 +1,34 @@
+package ru.myitschool.work.data.repo
+
+import ru.myitschool.work.data.entity.Employee
+import ru.myitschool.work.data.source.DataStoreDataSource
+import ru.myitschool.work.data.source.DataStoreDataSource.createAuthCode
+import ru.myitschool.work.data.source.DataStoreDataSource.getAuthCode
+import ru.myitschool.work.data.source.NetworkDataSource
+
+class MainRepository {
+    private var employee: Employee? = null
+
+    suspend fun getUserInfo(): Result<Employee> {
+        return try {
+            val code = getCode()
+            val result = NetworkDataSource.getUserInfo(code)
+            result.onSuccess { success ->
+                employee = success
+            }
+            result
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+
+
+
+    suspend fun getCode(): String {
+        return getAuthCode()
+    }
+
+    suspend fun logOut(){
+        DataStoreDataSource.logOut()
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/data/source/DataStoreDataSource.kt
+++ b/app/src/main/java/ru/myitschool/work/data/source/DataStoreDataSource.kt
@@ -0,0 +1,48 @@
+package ru.myitschool.work.data.source
+
+import android.content.Context
+import android.util.Log
+import androidx.compose.material3.rememberTimePickerState
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+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.App
+import ru.myitschool.work.core.OurConstants.DS_AUTH_KEY
+
+
+val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "auth")
+val AUTH_KEY = stringPreferencesKey(DS_AUTH_KEY)
+
+object DataStoreDataSource {
+    fun authFlow(): Flow<String> {
+        return App.context.dataStore.data.map { preferences ->
+            (preferences[AUTH_KEY] ?: 0).toString()
+        }
+    }
+
+    suspend fun createAuthCode(code: String) {
+        App.context.dataStore.updateData {
+            it.toMutablePreferences().also { preferences ->
+                preferences[AUTH_KEY] = code
+            }
+        }
+    }
+
+    suspend fun getAuthCode(): String {
+        return App.context.dataStore.data.map { preferences ->
+            preferences[AUTH_KEY] ?: ""
+        }.first()
+    }
+
+    suspend fun logOut() {
+        App.context.dataStore.updateData {
+            it.toMutablePreferences().also { preferences ->
+                preferences.remove(AUTH_KEY)
+            }
+        }
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/data/source/NetworkDataSource.kt
+++ b/app/src/main/java/ru/myitschool/work/data/source/NetworkDataSource.kt
@@ -1,16 +1,30 @@
 package ru.myitschool.work.data.source

+import android.annotation.SuppressLint
+import android.util.Log
 import io.ktor.client.HttpClient
 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
+import ru.myitschool.work.data.entity.Employee
+import kotlinx.serialization.json.*
+import ru.myitschool.work.App
+import ru.myitschool.work.R
+import ru.myitschool.work.data.entity.Booking
+import ru.myitschool.work.data.entity.Place
+import java.time.LocalDate

 object NetworkDataSource {
    private val client by lazy {
@@ -31,12 +45,133 @@ object NetworkDataSource {
    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) {
                HttpStatusCode.OK -> true
+                HttpStatusCode.Unauthorized -> error(App.context.getString(R.string.auth_wrong_code))
+                else -> error(App.context.getString(R.string.error_request, response.bodyAsText()))
+            }
+        }
+    }
+
+    suspend fun getUserInfo(code: String): Result<Employee> = withContext(Dispatchers.IO) {
+        return@withContext runCatching {
+            val response = client.get(getUrl(code, Constants.INFO_URL))
+
+            when (response.status) {
+                HttpStatusCode.OK -> {
+                    val json = response.bodyAsText()
+                    if (json.isBlank()) {
+                        error(App.context.getString(R.string.error_empty_server_response))
+                    }
+
+                    val jsonObject = try {
+                        Json.parseToJsonElement(json).jsonObject
+                    } catch (e: Exception) {
+                        error(App.context.getString(R.string.error_parsing, e.message))
+                    }
+                    val name = jsonObject["name"]?.jsonPrimitive?.content
+                        ?: error(App.context.getString(R.string.error_missing_name_field))
+                    val photoUrl = jsonObject["photoUrl"]?.jsonPrimitive?.content
+                        ?: error(App.context.getString(R.string.error_missing_photo_url_field))
+
+                    val bookingJson = jsonObject["booking"]?.jsonObject
+                        ?: error(App.context.getString(R.string.error_missing_booking_field))
+
+                    val employee = Employee(
+                        name = name,
+                        code = code,
+                        photoUrl = photoUrl,
+                        bookingList = mutableListOf()
+                    )
+                    val bookingList = mutableListOf<Booking>()
+                    for ((dateString, bookingElement) in bookingJson) {
+                        val date = LocalDate.parse(dateString)
+                        val bookingObj = bookingElement.jsonObject
+                        val bookingId = bookingObj["id"]?.jsonPrimitive?.long
+                            ?: error(App.context.getString(R.string.error_missing_id_field))
+                        val placeString = bookingObj["place"]?.jsonPrimitive?.content
+                            ?: error(App.context.getString(R.string.error_missing_place_field, dateString))
+
+                        if (placeString.isBlank()) {
+                            error(App.context.getString(R.string.error_empty_place_field, dateString))
+                        }
+
+                        val placeId = bookingId
+                        val place = Place(placeId, placeString)
+
+                        val booking = Booking(
+                            id = bookingId,
+                            date = date,
+                            place = place,
+                            employeeCode = employee.code
+                        )
+                        bookingList.add(booking)
+                    }
+                    /* if (bookingList.isEmpty()) {
+                        error(App.context.getString(R.string.error_booking_list_empty))
+                    }*/
+                    employee.bookingList.addAll(bookingList)
+                    employee
+                }
                else -> error(response.bodyAsText())
            }
        }
    }

+    suspend fun getAvailableBookings(code: String): Result<Map<LocalDate, List<Place>>> = withContext(Dispatchers.IO) {
+        return@withContext runCatching {
+            val response = client.get(getUrl(code, Constants.BOOKING_URL))
+
+            when (response.status) {
+                HttpStatusCode.OK -> {
+                    val json = response.bodyAsText()
+                    val jsonObject = Json.parseToJsonElement(json).jsonObject
+                    val availableBookings = mutableMapOf<LocalDate, List<Place>>()
+
+                    for ((dateString, placesArray) in jsonObject) {
+                        val date = LocalDate.parse(dateString)
+                        val places = placesArray.jsonArray.map { placeElement ->
+                            val placeObj = placeElement.jsonObject
+                            val id = placeObj["id"]?.jsonPrimitive?.long
+                                ?: error(App.context.getString(R.string.error_missing_id_in_place))
+                            val placeName = placeObj["place"]?.jsonPrimitive?.content
+                                ?: error(App.context.getString(R.string.error_missing_place_in_place))
+                            Place(id, placeName)
+                        }
+                        if (places.isNotEmpty()) {
+                            availableBookings[date] = places
+                        }
+                    }
+                    availableBookings.toSortedMap()
+                }
+
+                else -> error(App.context.getString(R.string.error_request, response.bodyAsText()))
+            }
+        }
+    }
+
+    @Serializable
+    private data class CreateBookingBody(val date: String, val placeId: Long)
+
+    suspend fun createBooking(code: String, date: LocalDate, placeId: Long): Result<Boolean> = withContext(Dispatchers.IO) {
+        return@withContext runCatching {
+            // Формируем тело запроса
+            val requestBody = CreateBookingBody(date.toString(), placeId)
+
+            val response = client.post(getUrl(code, Constants.BOOK_URL)) {
+                contentType(ContentType.Application.Json)
+                setBody(requestBody)
+            }
+
+            when (response.status) {
+                HttpStatusCode.Created -> true
+                else -> {
+                    val errorBody = response.bodyAsText()
+                    error(if (errorBody.isNotBlank()) App.context.getString(R.string.error_booking, errorBody) else App.context.getString(R.string.error_booking_default))
+                }
+            }
+        }
+    }
    private fun getUrl(code: String, targetUrl: String) = "${Constants.HOST}/api/$code$targetUrl"
 }
--- a/app/src/main/java/ru/myitschool/work/domain/auth/CheckAndSaveAuthCodeUseCase.kt
+++ b/app/src/main/java/ru/myitschool/work/domain/auth/CheckAndSaveAuthCodeUseCase.kt
@@ -7,9 +7,7 @@ class CheckAndSaveAuthCodeUseCase(
    ) {
        suspend operator fun invoke(
            text: String
-    ): Result<Unit> {
-        return repository.checkAndSave(text).mapCatching { success ->
-            if (!success) error("Code is incorrect")
-        }
+        ): Result<Boolean> {
+            return repository.checkAndSave(text)
        }
    }
--- a/app/src/main/java/ru/myitschool/work/domain/book/CreateBookingUseCase.kt
+++ b/app/src/main/java/ru/myitschool/work/domain/book/CreateBookingUseCase.kt
@@ -0,0 +1,12 @@
+package ru.myitschool.work.domain.book
+
+import ru.myitschool.work.data.repo.BookingRepository
+import java.time.LocalDate
+
+class CreateBookingUseCase(
+    private val repository: BookingRepository
+) {
+    suspend operator fun invoke(date: LocalDate, placeId: Long): Result<Boolean> {
+        return repository.createBooking(date, placeId)
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/domain/book/GetAvailableBookingsUseCase.kt
+++ b/app/src/main/java/ru/myitschool/work/domain/book/GetAvailableBookingsUseCase.kt
@@ -0,0 +1,13 @@
+package ru.myitschool.work.domain.book
+
+import ru.myitschool.work.data.entity.Place
+import ru.myitschool.work.data.repo.BookingRepository
+import java.time.LocalDate
+
+class GetAvailableBookingsUseCase(
+    private val repository: BookingRepository
+) {
+    suspend operator fun invoke(): Result<Map<LocalDate, List<Place>>> {
+        return repository.getAvailableBookings()
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/domain/main/GetUserDataUseCase.kt
+++ b/app/src/main/java/ru/myitschool/work/domain/main/GetUserDataUseCase.kt
@@ -0,0 +1,13 @@
+package ru.myitschool.work.domain.main
+
+import ru.myitschool.work.data.entity.Employee
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.data.repo.MainRepository
+
+class GetUserDataUseCase(
+    private val repository: MainRepository
+) {
+    suspend operator fun invoke(): Result<Employee> {
+        return repository.getUserInfo()
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/ui/root/RootActivity.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/root/RootActivity.kt
@@ -8,12 +8,15 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Scaffold
 import androidx.compose.ui.Modifier
+import ru.myitschool.work.App
+import ru.myitschool.work.data.source.DataStoreDataSource.authFlow
 import ru.myitschool.work.ui.screen.AppNavHost
 import ru.myitschool.work.ui.theme.WorkTheme

 class RootActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
+        App.context = applicationContext
        enableEdgeToEdge()
        setContent {
            WorkTheme {
--- a/app/src/main/java/ru/myitschool/work/ui/screen/NavigationGraph.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/NavigationGraph.kt
@@ -2,19 +2,20 @@ package ru.myitschool.work.ui.screen

 import androidx.compose.animation.EnterTransition
 import androidx.compose.animation.ExitTransition
-import androidx.compose.foundation.layout.Box
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
+import ru.myitschool.work.data.source.DataStoreDataSource.authFlow
 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.auth.AuthViewModel
+import ru.myitschool.work.ui.screen.book.BookScreen
+import ru.myitschool.work.ui.screen.main.MainScreen

@Composable
 fun AppNavHost(
@@ -32,18 +33,16 @@ fun AppNavHost(
            AuthScreen(navController = navController)
        }
        composable<MainScreenDestination> {
-            Box(
-                contentAlignment = Alignment.Center
-            ) {
-                Text(text = "Hello")
-            }
+            MainScreen(navController = navController)
        }
        composable<BookScreenDestination> {
-            Box(
-                contentAlignment = Alignment.Center
-            ) {
-                Text(text = "Hello")
-            }
+            BookScreen(
+                onBack = { navController.popBackStack() },
+                onBookSuccess = {
+                    // Возвращаемся на главный экран и обновляем его
+                    navController.popBackStack()
+                }
+            )
        }
    }
 }
--- a/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthAction.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthAction.kt
@@ -0,0 +1,7 @@
+package ru.myitschool.work.ui.screen.auth
+
+sealed interface AuthAction {
+    data class ShowError(val message: String?) : AuthAction
+    data class LogIn(val isLogged: Boolean): AuthAction
+    data class AuthBtnEnabled(val enabled: Boolean) : AuthAction
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthIntent.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthIntent.kt
@@ -3,4 +3,5 @@ package ru.myitschool.work.ui.screen.auth
 sealed interface AuthIntent {
    data class Send(val text: String): AuthIntent
    data class TextInput(val text: String): AuthIntent
+    object CheckLogIntent: AuthIntent
 }
--- a/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthScreen.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthScreen.kt
@@ -1,5 +1,6 @@
 package ru.myitschool.work.ui.screen.auth

+import android.util.Log
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
@@ -21,15 +22,18 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.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 io.ktor.util.collections.setValue
+import ru.myitschool.work.App
 import ru.myitschool.work.R
+import ru.myitschool.work.core.OurConstants.SHABLON
 import ru.myitschool.work.core.TestIds
+import ru.myitschool.work.core.Utils
 import ru.myitschool.work.ui.nav.MainScreenDestination

@Composable
@@ -38,13 +42,11 @@ fun AuthScreen(
    navController: NavController
 ) {
    val state by viewModel.uiState.collectAsState()
-
    LaunchedEffect(Unit) {
-        viewModel.actionFlow.collect {
-            navController.navigate(MainScreenDestination)
-        }
+        viewModel.onIntent(AuthIntent.CheckLogIntent)
    }

+
    Column(
        modifier = Modifier
            .fillMaxSize()
@@ -58,12 +60,16 @@ fun AuthScreen(
            textAlign = TextAlign.Center
        )
        when (val currentState = state) {
-            is AuthState.Data -> Content(viewModel, currentState)
+            is AuthState.Data -> Content(viewModel, currentState, navController)
            is AuthState.Loading -> {
                CircularProgressIndicator(
                    modifier = Modifier.size(64.dp)
                )
            }
+
+            is AuthState.LoggedIn -> {
+                navController.navigate(MainScreenDestination)
+            }
        }
    }
 }
@@ -71,12 +77,36 @@ fun AuthScreen(
@Composable
 private fun Content(
    viewModel: AuthViewModel,
-    state: AuthState.Data
+    state: AuthState.Data,
+    navController: NavController
 ) {
    var inputText by remember { mutableStateOf("") }
+    var errorText: String? by remember { mutableStateOf(null) }
+    var btnEnabled: Boolean by remember { mutableStateOf(false) }
+
+    val event = viewModel.actionFlow.collectAsState(initial = null)
+
+    // В UI (Composable)
+    val actionFlow = viewModel.actionFlow // SharedFlow<AuthAction>
+
+    LaunchedEffect(Unit) {
+        // Collect Flow<T> здесь, чтобы потреблять все события
+        actionFlow.collect { action ->
+            when (action) {
+                is AuthAction.ShowError -> {
+                    errorText = action.message
+                }
+                is AuthAction.AuthBtnEnabled -> {
+                    btnEnabled = action.enabled
+                } else -> {}
+            }
+        }
+    }
    Spacer(modifier = Modifier.size(16.dp))
    TextField(
-        modifier = Modifier.testTag(TestIds.Auth.CODE_INPUT).fillMaxWidth(),
+        modifier = Modifier
+            .testTag(TestIds.Auth.CODE_INPUT)
+            .fillMaxWidth(),
        value = inputText,
        onValueChange = {
            inputText = it
@@ -86,12 +116,20 @@ private fun Content(
    )
    Spacer(modifier = Modifier.size(16.dp))
    Button(
-        modifier = Modifier.testTag(TestIds.Auth.SIGN_BUTTON).fillMaxWidth(),
+        modifier = Modifier
+            .testTag(TestIds.Auth.SIGN_BUTTON)
+            .fillMaxWidth(),
        onClick = {
+            if (Utils.CheckCodeInput(inputText)) {
                viewModel.onIntent(AuthIntent.Send(inputText))
+            } else {
+                errorText = App.context.getString(R.string.auth_nasty_code)
+            }
        },
-        enabled = true
-    ) {
-        Text(stringResource(R.string.auth_sign_in))
+        enabled = btnEnabled
+
+    ) { Text(stringResource(R.string.auth_sign_in)) }
+    if (errorText != null) {
+        Text(errorText.toString(), modifier = Modifier.testTag(TestIds.Auth.ERROR))
    }
 }
--- a/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthState.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthState.kt
@@ -3,4 +3,5 @@ package ru.myitschool.work.ui.screen.auth
 sealed interface AuthState {
    object Loading: AuthState
    object Data: AuthState
+    object LoggedIn: AuthState
 }
--- a/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthViewModel.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/auth/AuthViewModel.kt
@@ -1,5 +1,7 @@
 package ru.myitschool.work.ui.screen.auth

+import android.util.Log
+import androidx.compose.ui.res.stringResource
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.Dispatchers
@@ -8,9 +10,14 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
+import ru.myitschool.work.App
+import ru.myitschool.work.R
+import ru.myitschool.work.core.Utils.Companion.CheckCodeInput
 import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.data.source.DataStoreDataSource.authFlow
 import ru.myitschool.work.domain.auth.CheckAndSaveAuthCodeUseCase

 class AuthViewModel : ViewModel() {
@@ -18,26 +25,55 @@ class AuthViewModel : ViewModel() {
    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 _actionFlow: MutableSharedFlow<AuthAction> = MutableSharedFlow(replay = 1)
+    val actionFlow: SharedFlow<AuthAction> = _actionFlow

    fun onIntent(intent: AuthIntent) {
        when (intent) {
            is AuthIntent.Send -> {
-                viewModelScope.launch(Dispatchers.Default) {
+                viewModelScope.launch(Dispatchers.IO) {
                    _uiState.update { AuthState.Loading }
-                    checkAndSaveAuthCodeUseCase.invoke("9999").fold(
+                    checkAndSaveAuthCodeUseCase.invoke(intent.text).fold(
                        onSuccess = {
-                            _actionFlow.emit(Unit)
+                            _uiState.update { AuthState.LoggedIn }
                        },
                        onFailure = { error ->
                            error.printStackTrace()
-                            _actionFlow.emit(Unit)
+                            if (error.message != null) {
+                                _actionFlow.emit(AuthAction.ShowError(error.message))
+                                _uiState.update { AuthState.Data }
+                            }
+
                        }
                    )
                }
            }
-            is AuthIntent.TextInput -> Unit
+
+            is AuthIntent.TextInput -> {
+                viewModelScope.launch {
+                    authFlow().collect {
+                        if (CheckCodeInput(intent.text)) {
+                            _actionFlow.emit(AuthAction.AuthBtnEnabled(true))
+                        } else {
+                            _actionFlow.emit(AuthAction.AuthBtnEnabled(false))
+                        }
+                    }
+                }
+            }
+
+            is AuthIntent.CheckLogIntent -> {
+                viewModelScope.launch {
+                    _uiState.update { AuthState.Loading }
+                    val authCode = authFlow().first()
+                    if (authCode != "0") {
+                        _actionFlow.emit(AuthAction.LogIn(true))
+                        _uiState.update { AuthState.LoggedIn }
+                    } else {
+                        _uiState.update { AuthState.Data }
+                    }
+
+                }
+            }
        }
    }
 }
--- a/app/src/main/java/ru/myitschool/work/ui/screen/book/BookAction.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/book/BookAction.kt
@@ -0,0 +1,6 @@
+package ru.myitschool.work.ui.screen.book
+
+sealed interface BookAction {
+    data class ShowError(val message: String?) : BookAction
+    object BookSuccess : BookAction
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/book/BookIntent.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/book/BookIntent.kt
@@ -0,0 +1,12 @@
+package ru.myitschool.work.ui.screen.book
+
+import ru.myitschool.work.data.entity.Place
+import java.time.LocalDate
+
+sealed interface BookIntent {
+    object LoadData : BookIntent
+    object Refresh : BookIntent
+    object BookPlace : BookIntent
+    data class SelectDate(val date: LocalDate) : BookIntent
+    data class SelectPlace(val place: Place) : BookIntent
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/book/BookScreen.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/book/BookScreen.kt
@@ -0,0 +1,180 @@
+package ru.myitschool.work.ui.screen.book
+
+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.selection.selectable
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.RadioButton
+import androidx.compose.material3.ScrollableTabRow
+import androidx.compose.material3.Tab
+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.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import ru.myitschool.work.core.TestIds
+import ru.myitschool.work.data.entity.Place
+import java.time.LocalDate
+import java.time.format.DateTimeFormatter
+
+@Composable
+fun BookScreen(
+    onBack: () -> Unit,
+    onBookSuccess: () -> Unit
+) {
+    val viewModel: BookViewModel = viewModel()
+    val uiState by viewModel.uiState.collectAsState()
+
+    LaunchedEffect(viewModel.actionFlow) {
+        viewModel.actionFlow.collect { action ->
+            if (action is BookAction.BookSuccess) {
+                onBookSuccess()
+            }
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        viewModel.onIntent(BookIntent.LoadData)
+    }
+
+    when (val state = uiState) {
+        is BookState.Loading -> {
+            Box(
+                modifier = Modifier.fillMaxSize(),
+                contentAlignment = Alignment.Center
+            ) {
+                CircularProgressIndicator()
+            }
+        }
+
+        is BookState.Data -> {
+            BookContentScreen(
+                uiState = state,
+                onSelectDate = { date -> viewModel.onIntent(BookIntent.SelectDate(date)) },
+                onSelectPlace = { place -> viewModel.onIntent(BookIntent.SelectPlace(place)) },
+                onBook = { viewModel.onIntent(BookIntent.BookPlace) },
+                onBack = onBack,
+                onRefresh = { viewModel.onIntent(BookIntent.Refresh) }
+            )
+        }
+    }
+}
+
+@Composable
+fun BookContentScreen(
+    uiState: BookState.Data,
+    onSelectDate: (LocalDate) -> Unit,
+    onSelectPlace: (Place) -> Unit,
+    onBook: () -> Unit,
+    onBack: () -> Unit,
+    onRefresh: () -> Unit
+) {
+    val sortedDates = uiState.dates.sorted()
+    val availableDates = sortedDates.filter { date -> uiState.places[date]?.isNotEmpty() == true }
+
+    Column(modifier = Modifier.fillMaxSize().padding(16.dp)) {
+        if (availableDates.isNotEmpty()) {
+            ScrollableTabRow(
+                selectedTabIndex = availableDates.indexOf(uiState.selectedDate),
+            ) {
+                availableDates.forEachIndexed { index, date ->
+                    Tab(
+                        selected = date == uiState.selectedDate,
+                        onClick = { onSelectDate(date) },
+                        text = {
+                            Text(
+                                text = date.format(DateTimeFormatter.ofPattern("dd.MM")),
+                                modifier = Modifier.testTag(TestIds.Book.getIdDateItemByPosition(index))
+                            )
+                        },
+                        modifier = Modifier.testTag(TestIds.Book.ITEM_DATE)
+                    )
+                }
+            }
+        }
+
+        Spacer(modifier = Modifier.height(16.dp))
+
+        val placesForDate = uiState.selectedDate?.let { uiState.places[it] } ?: emptyList()
+
+        if (placesForDate.isNotEmpty()) {
+            Column {
+                placesForDate.forEachIndexed { index, place ->
+                    Row(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(vertical = 8.dp)
+                            .selectable(
+                                selected = uiState.selectedPlace == place,
+                                onClick = { onSelectPlace(place) }
+                            )
+                            .testTag(TestIds.Book.getIdPlaceItemByPosition(index)),
+                        verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        Text(
+                            text = place.place,
+                            modifier = Modifier.weight(1f).testTag(TestIds.Book.ITEM_PLACE_TEXT)
+                        )
+                        RadioButton(
+                            selected = uiState.selectedPlace == place,
+                            onClick = { onSelectPlace(place) },
+                            modifier = Modifier.testTag(TestIds.Book.ITEM_PLACE_SELECTOR)
+                        )
+                    }
+                }
+            }
+        }
+
+        if (availableDates.isEmpty() && !uiState.isError) {
+            Text(
+                text = "Всё забронировано",
+                modifier = Modifier.testTag(TestIds.Book.EMPTY)
+            )
+        }
+
+        if (uiState.isError) {
+            Text(
+                text = uiState.errorMessage ?: "Ошибка загрузки",
+                color = Color.Red,
+                modifier = Modifier.testTag(TestIds.Book.ERROR)
+            )
+
+            Button(
+                onClick = onRefresh,
+                modifier = Modifier.testTag(TestIds.Book.REFRESH_BUTTON)
+            ) {
+                Text("Обновить")
+            }
+        }
+
+        Spacer(modifier = Modifier.weight(1f))
+
+        if (!uiState.isError && placesForDate.isNotEmpty()) {
+            Button(
+                onClick = onBook,
+                enabled = uiState.selectedPlace != null, // активна только при выбранном месте
+                modifier = Modifier.fillMaxWidth().testTag(TestIds.Book.BOOK_BUTTON)
+            ) { Text("Забронировать") }
+        }
+
+        Button(
+            onClick = onBack,
+            modifier = Modifier.fillMaxWidth().padding(top = 8.dp).testTag(TestIds.Book.BACK_BUTTON)
+        ) {
+            Text("Назад")
+        }
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/book/BookState.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/book/BookState.kt
@@ -0,0 +1,16 @@
+package ru.myitschool.work.ui.screen.book
+
+import ru.myitschool.work.data.entity.Place
+import java.time.LocalDate
+
+sealed interface BookState {
+    object Loading : BookState
+    data class Data(
+        val dates: List<LocalDate> = emptyList(),
+        val places: Map<LocalDate, List<Place>> = emptyMap(),
+        val selectedDate: LocalDate? = null,
+        val selectedPlace: Place? = null,
+        val isError: Boolean = false,
+        val errorMessage: String? = null
+    ) : BookState
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/book/BookViewModel.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/book/BookViewModel.kt
@@ -0,0 +1,150 @@
+package ru.myitschool.work.ui.screen.book
+
+import android.util.Log
+import androidx.lifecycle.ViewModel
+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.App
+import ru.myitschool.work.R
+import ru.myitschool.work.data.entity.Place
+import ru.myitschool.work.data.repo.BookingRepository
+import ru.myitschool.work.domain.book.CreateBookingUseCase
+import ru.myitschool.work.domain.book.GetAvailableBookingsUseCase
+import java.time.LocalDate
+
+class BookViewModel : ViewModel() {
+    private val repository by lazy { BookingRepository() }
+    private val getAvailableBookingsUseCase by lazy { GetAvailableBookingsUseCase(repository) }
+    private val createBookingUseCase by lazy { CreateBookingUseCase(repository) }
+
+
+    private val _uiState = MutableStateFlow<BookState>(BookState.Loading)
+    val uiState: StateFlow<BookState> = _uiState.asStateFlow()
+
+    private val _actionFlow = MutableSharedFlow<BookAction>()
+    val actionFlow: SharedFlow<BookAction> = _actionFlow
+
+    private var selectedPlaceId: Long? = null
+
+    init {
+        loadBookData()
+    }
+
+    fun onIntent(intent: BookIntent) {
+        when (intent) {
+            is BookIntent.LoadData -> loadBookData()
+            is BookIntent.Refresh -> refresh()
+            is BookIntent.BookPlace -> bookPlace()
+            is BookIntent.SelectDate -> selectDate(intent.date)
+            is BookIntent.SelectPlace -> selectPlace(intent.place)
+        }
+    }
+
+    private fun loadBookData() {
+        viewModelScope.launch(Dispatchers.IO) {
+            _uiState.update { BookState.Loading }
+
+            getAvailableBookingsUseCase().fold(
+                onSuccess = { bookings ->
+                    if (bookings.isEmpty()) {
+                        _uiState.update {
+                            BookState.Data(
+                                isError = true,
+                                errorMessage = App.context.getString(R.string.error_no_available_dates)
+                            )
+                        }
+                    } else {
+                        val dates = bookings.keys.toList()
+                        _uiState.update {
+                            BookState.Data(
+                                dates = dates,
+                                places = bookings,
+                                selectedDate = dates.first(),
+                                selectedPlace = null,
+                                isError = false,
+                                errorMessage = null
+                            )
+                        }
+                    }
+                },
+                onFailure = { error ->
+                    error.printStackTrace()
+                    _uiState.update {
+                        BookState.Data(
+                            isError = true,
+                            errorMessage = error.message ?: App.context.getString(R.string.error_loading_data)
+                        )
+                    }
+                }
+            )
+        }
+    }
+
+    private fun selectDate(date: LocalDate) {
+        _uiState.update { currentState ->
+            if (currentState is BookState.Data) {
+                currentState.copy(
+                    selectedDate = date,
+                    selectedPlace = null
+                )
+            } else {
+                currentState
+            }
+        }
+        selectedPlaceId = null
+    }
+
+    private fun selectPlace(place: Place) {
+        _uiState.update { currentState ->
+            if (currentState is BookState.Data) {
+                currentState.copy(selectedPlace = place)
+            } else {
+                currentState
+            }
+        }
+        selectedPlaceId = place.id
+    }
+
+    private fun bookPlace() {
+        val currentState = _uiState.value
+        if (currentState is BookState.Data && currentState.selectedPlace != null && currentState.selectedDate != null) {
+            val placeId = selectedPlaceId ?: return
+            val date = currentState.selectedDate
+
+            viewModelScope.launch(Dispatchers.IO) {
+                createBookingUseCase (date, placeId).fold(
+                    onSuccess = {
+                        Log.d("AnnaKonda", "method is calling")
+                        _actionFlow.emit(BookAction.BookSuccess)
+                    },
+                    onFailure = { error ->
+                        Log.d("AnnaKonda", "ERROR method is calling")
+                        error.printStackTrace()
+                        _uiState.update { currentState ->
+                            if (currentState is BookState.Data) {
+                                currentState.copy(
+                                    isError = true
+                                )
+                            } else {
+                                currentState
+                            }
+                        }
+                        // _actionFlow.emit(BookAction.ShowError(error.message ?: App.context.getString(R.string.error_booking_default)))
+                    }
+                )
+            }
+        }
+    }
+
+    private fun refresh() {
+        loadBookData()
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/main/MainAction.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/main/MainAction.kt
@@ -0,0 +1,8 @@
+package ru.myitschool.work.ui.screen.main
+
+import ru.myitschool.work.ui.screen.auth.AuthAction
+
+sealed interface MainAction {
+    data class SetName(val name: String)
+    data class ShowError(val message: String?) : MainAction
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/main/MainIntent.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/main/MainIntent.kt
@@ -0,0 +1,9 @@
+package ru.myitschool.work.ui.screen.main
+
+sealed interface MainIntent {
+    /* data class Send(val text: String): AuthIntent
+    data class TextInput(val text: String): AuthIntent
+    object CheckLogIntent: AuthIntent*/
+    object LoadData: MainIntent
+    object LogOut: MainIntent
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/main/MainScreen.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/main/MainScreen.kt
@@ -0,0 +1,244 @@
+package ru.myitschool.work.ui.screen.main
+
+import android.util.Log
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import coil3.compose.AsyncImage
+import ru.myitschool.work.core.TestIds
+import ru.myitschool.work.data.entity.Booking
+import ru.myitschool.work.data.entity.Employee
+import ru.myitschool.work.ui.nav.AuthScreenDestination
+import ru.myitschool.work.ui.nav.BookScreenDestination
+
+@Composable
+fun MainScreen(
+    navController: NavController,
+) {
+    val viewModel: MainViewModel = viewModel()
+    // Состояния
+    val event = viewModel.actionFlow.collectAsState(initial = null)
+    // Функция загрузки данных
+    LaunchedEffect(Unit) {
+        viewModel.onIntent(MainIntent.LoadData)
+    }
+
+    var errorMessage: String? by remember { mutableStateOf("") }
+    LaunchedEffect(event.value) {
+        if (event.value is MainAction.ShowError) {
+            errorMessage = (event.value as MainAction.ShowError).message
+        }
+    }
+    // Если ошибка - показываем только ошибку и кнопку обновления
+    if (errorMessage != null) {
+        ErrorScreen(viewModel = viewModel, navController = navController, errorMessage)
+    } else {
+        DefaultScreen(viewModel = viewModel, navController = navController)
+    }
+}
+@Composable
+fun DefaultScreen(viewModel: MainViewModel,
+                  navController: NavController){
+    val state by viewModel.uiState.collectAsState()
+    var employee : Employee? by remember { mutableStateOf(null) }
+    var errorMessage by remember { mutableStateOf("") }
+    var bookingItems : List<Booking?>? by remember { mutableStateOf(emptyList<Booking>()) }
+    var isLoading by remember { mutableStateOf(true) }
+
+    LaunchedEffect(state) {
+        when (state) {
+            is MainState.Loading -> {
+                errorMessage = ""
+                isLoading = true
+            }
+            is MainState.Data -> {
+                isLoading = false
+                employee = (state as MainState.Data).employee
+                if (employee == null){
+                    navController.navigate(AuthScreenDestination) { popUpTo(0) }
+                } else {
+                    bookingItems = employee?.bookingList?.sortedBy { item ->
+                        item?.date
+                    }
+                }
+            }
+        }
+    }
+    employee?.let {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(16.dp)
+        ) {
+            // Верхняя строка
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                // Фото пользователя (main_photo)
+                AsyncImage(
+                    model = employee?.photoUrl ?: "",
+                    contentDescription = "Фото",
+                    modifier = Modifier
+                        .size(64.dp)
+                        .clip(CircleShape)
+                        .testTag(TestIds.Main.PROFILE_IMAGE),
+                    error = painterResource(id = android.R.drawable.ic_menu_gallery)
+                )
+
+                Spacer(modifier = Modifier.width(16.dp))
+
+                // Имя пользователя (main_name)
+                Text(
+                    text = employee!!.name,
+                    style = MaterialTheme.typography.titleLarge,
+                    modifier = Modifier.weight(1f).testTag(TestIds.Main.PROFILE_NAME),
+                    color = MaterialTheme.colorScheme.onSurface
+                )
+
+                // Кнопка выхода (main_logout_button)
+                Button(
+                    onClick = {
+                        // Очистка данных и переход на авторизацию
+                        viewModel.onIntent(MainIntent.LogOut)
+                        bookingItems = emptyList()
+                    },
+                    modifier = Modifier.testTag(TestIds.Main.LOGOUT_BUTTON)
+                ) {
+                    Text("Выход")
+                }
+
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            // Кнопки действий
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween
+            ) {
+                // Кнопка обновления (main_refresh_button)
+                Button(
+                    onClick = { viewModel.onIntent(MainIntent.LoadData) },
+                    enabled = state !is MainState.Loading,
+                    modifier = Modifier.testTag(TestIds.Main.REFRESH_BUTTON)
+                ) {
+                    if (state is MainState.Loading) {
+                        CircularProgressIndicator(
+                            modifier = Modifier.size(16.dp),
+                            color = MaterialTheme.colorScheme.onPrimary
+                        )
+                    } else {
+                        Text("Обновить")
+                    }
+                }
+                // кнопка бронирования
+                Button(
+                    onClick = {
+                        navController.navigate(BookScreenDestination)
+                    },
+                    modifier = Modifier.testTag(TestIds.Main.ADD_BUTTON)
+                ) {
+                    Text("Перейти к бронированию")
+                }
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            // Список бронирований
+            if (!bookingItems.isNullOrEmpty()) {
+                LazyColumn(
+                    modifier = Modifier.weight(1f)
+
+                ) {
+                    itemsIndexed(bookingItems as List<Booking?>) { index, item ->
+                        // Элемент списка (main_book_pos_{index})
+                        Card(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .padding(vertical = 4.dp),
+                            colors = CardDefaults.cardColors(
+                                containerColor = MaterialTheme.colorScheme.surfaceVariant
+                            )
+                        ) {
+                            Column(
+                                modifier = Modifier.padding(16.dp)
+                                    .testTag(TestIds.Main.getIdItemByPosition(index))
+                            ) {
+                                // Дата бронирования (main_item_date)
+                                Text(
+                                    text = "Дата: ${item?.date}",
+                                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                                    modifier = Modifier.testTag(TestIds.Main.ITEM_DATE)
+                                )
+
+                                Spacer(modifier = Modifier.height(4.dp))
+
+                                // Место бронирования (main_item_place)
+                                Text(
+                                    text = "Место: ${item?.place?.place}",
+                                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                                    modifier = Modifier.testTag(TestIds.Main.ITEM_PLACE)
+                                )
+                            }
+                        }
+                    }
+                }
+            } else {
+                Box(
+                    modifier = Modifier
+                        .weight(1f)
+                        .fillMaxWidth(),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Text(
+                        text = "Нет бронирований",
+                        color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.6f)
+                    )
+                }
+            }
+        }
+    }
+}
+
+
+
+
+@Composable
+fun ErrorScreen(viewModel: MainViewModel,
+                navController: NavController,
+                errorMessage: String?){
+
+    Column(
+        modifier = Modifier.fillMaxSize(),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center
+    ) {
+        // Текстовое поле с ошибкой (main_error)
+
+        if (errorMessage != null) {
+            Text(
+                text = errorMessage,
+                color = MaterialTheme.colorScheme.error,
+                modifier = Modifier.testTag(TestIds.Main.ERROR)
+
+            )
+        }
+
+        Spacer(modifier = Modifier.height(16.dp))
+        Button(onClick = { viewModel.onIntent(MainIntent.LoadData) }) {
+            Text("Обновить")
+        }
+    }
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/main/MainState.kt
+++ b/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.entity.Employee
+import ru.myitschool.work.ui.screen.auth.AuthState
+
+sealed interface MainState {
+    object Loading: MainState
+    data class Data (val employee: Employee?): MainState
+}
--- a/app/src/main/java/ru/myitschool/work/ui/screen/main/MainViewModel.kt
+++ b/app/src/main/java/ru/myitschool/work/ui/screen/main/MainViewModel.kt
@@ -0,0 +1,61 @@
+package ru.myitschool.work.ui.screen.main
+
+import androidx.lifecycle.ViewModel
+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.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import ru.myitschool.work.data.repo.AuthRepository
+import ru.myitschool.work.data.repo.MainRepository
+import ru.myitschool.work.domain.main.GetUserDataUseCase
+
+class MainViewModel : ViewModel() {
+    private val repository by lazy { MainRepository() }
+    private val getUserDataUseCase by lazy { GetUserDataUseCase(repository) }
+
+    private val _uiState = MutableStateFlow<MainState>(MainState.Loading)
+    val uiState: StateFlow<MainState> = _uiState.asStateFlow()
+
+    private val _actionFlow: MutableSharedFlow<MainAction> = MutableSharedFlow()
+    val actionFlow: SharedFlow<MainAction> = _actionFlow
+
+    fun onIntent(intent: MainIntent) {
+        when (intent) {
+            is MainIntent.LoadData -> {
+                loadData()
+            }
+
+            is MainIntent.LogOut -> {
+                viewModelScope.launch(Dispatchers.IO) {
+                    _uiState.update { MainState.Data(null) }
+                    repository.logOut()
+                }
+            }
+        }
+    }
+
+    private fun loadData() {
+        viewModelScope.launch(Dispatchers.IO) {
+            _uiState.update { MainState.Loading }
+
+            getUserDataUseCase.invoke().fold(
+                onSuccess = { employee ->
+                    _uiState.update { MainState.Data(employee) }
+                    _actionFlow.emit(MainAction.ShowError(null))
+                },
+                onFailure = { error ->
+                    error.printStackTrace()
+                    if (error.message != null) {
+                        _actionFlow.emit(MainAction.ShowError(error.message.toString()))
+                    }
+                    _uiState.update { MainState.Data(null) }
+                }
+            )
+        }
+    }
+}
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -4,4 +4,25 @@
    <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="auth_wrong_code">Введён неверный код</string>
+    <string name="auth_nasty_code">Неправильный формат кода</string>
+
+    <string name="error_request">Ошибка запроса</string>
+    <string name="error_empty_server_response">Пустой ответ от сервера</string>
+    <string name="error_parsing">Ошибка парсинга</string>
+    <string name="error_missing_name_field">В ответе отсутствует поле name</string>
+    <string name="error_missing_photo_url_field">В ответе отсутствует поле photoUrl</string>
+    <string name="error_missing_booking_field">В ответе отсутствует поле booking</string>
+    <string name="error_missing_id_field">В ответе отсутствует поле id</string>
+    <string name="error_missing_place_field">В ответе отсутствует поле place для даты</string>
+    <string name="error_empty_place_field">В ответе поле place пусто для даты</string>
+    <string name="error_booking_list_empty">Список бронирований пуст</string>
+    <string name="error_missing_id_in_place">В информации о месте отсутствует id</string>
+    <string name="error_missing_place_in_place">В информации о месте отсутствует place</string>
+    <string name="error_booking">Ошибка бронирования</string>
+    <string name="error_booking_default">Ошибка бронирования</string>
+
+    <string name="error_no_available_dates">Нет доступных дат для бронирования</string>
+    <string name="error_loading_data">Ошибка загрузки данных</string>
+
 </resources>