Merge remote-tracking branch 'origin/main'

# Conflicts:
#	app/src/main/java/ru/myitschool/work/ui/screen/NavigationGraph.kt
#	app/src/main/java/ru/myitschool/work/ui/screen/book/BookIntent.kt
#	app/src/main/java/ru/myitschool/work/ui/screen/book/BookScreen.kt
#	app/src/main/java/ru/myitschool/work/ui/screen/book/BookState.kt
#	app/src/main/java/ru/myitschool/work/ui/screen/book/BookViewModel.kt
#	app/src/main/res/values/strings.xml

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

@@ -1,11 +1,21 @@
 package ru.myitschool.work.data.repo
 
+import android.content.Context
+import ru.myitschool.work.App
 import ru.myitschool.work.data.source.NetworkDataSource
 
 object AuthRepository {
 
     private var codeCache: String? = null
-
+    private const val PREF_NAME = "auth_prefs"
+    private const val KEY_SAVED_CODE = "saved_code"
+    private val context: Context get() = App.context
+    private fun loadSavedCode(): String? {
+//        return context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)
+//            .getString(KEY_SAVED_CODE, null)
+        return ""
+    }
+    fun getSavedCode(): String? = loadSavedCode()
     suspend fun checkAndSave(text: String): Result<Boolean> {
         return NetworkDataSource.checkAuth(text).onSuccess { success ->
             if (success) {

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

@@ -5,6 +5,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.material3.Button
@@ -21,7 +22,6 @@ 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
@@ -74,6 +74,11 @@ private fun Content(
     state: AuthState.Data
 ) {
     var inputText by remember { mutableStateOf("") }
+
+    val isValidCode = inputText.length >= 4 && inputText.isNotEmpty() && inputText.none { it.isWhitespace() } && inputText.all { ch ->
+        ch in '0'..'9' || ch in 'A'..'Z' || ch in 'a'..'z'
+    }
+
     Spacer(modifier = Modifier.size(16.dp))
     TextField(
         modifier = Modifier.testTag(TestIds.Auth.CODE_INPUT).fillMaxWidth(),
@@ -82,15 +87,23 @@ private fun Content(
             inputText = it
             viewModel.onIntent(AuthIntent.TextInput(it))
         },
-        label = { Text(stringResource(R.string.auth_label)) }
+        label = { Text(stringResource(R.string.auth_label)) },
     )
+    if (state.error != null) {
+        Text(
+            text = state.error,
+            color = MaterialTheme.colorScheme.error,
+            modifier = Modifier
+                .testTag(TestIds.Auth.ERROR)
+        )
+    }
     Spacer(modifier = Modifier.size(16.dp))
     Button(
         modifier = Modifier.testTag(TestIds.Auth.SIGN_BUTTON).fillMaxWidth(),
         onClick = {
             viewModel.onIntent(AuthIntent.Send(inputText))
         },
-        enabled = true
+        enabled = isValidCode
     ) {
         Text(stringResource(R.string.auth_sign_in))
     }

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

@@ -2,5 +2,7 @@ package ru.myitschool.work.ui.screen.auth
 
 sealed interface AuthState {
     object Loading: AuthState
-    object Data: AuthState
+    data class Data(
+        val error: String? = null
+    ) : AuthState
 }

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

@@ -15,7 +15,7 @@ import ru.myitschool.work.domain.auth.CheckAndSaveAuthCodeUseCase
 
 class AuthViewModel : ViewModel() {
     private val checkAndSaveAuthCodeUseCase by lazy { CheckAndSaveAuthCodeUseCase(AuthRepository) }
-    private val _uiState = MutableStateFlow<AuthState>(AuthState.Data)
+    private val _uiState = MutableStateFlow<AuthState>(AuthState.Data())
     val uiState: StateFlow<AuthState> = _uiState.asStateFlow()
 
     private val _actionFlow: MutableSharedFlow<Unit> = MutableSharedFlow()
@@ -26,18 +26,21 @@ class AuthViewModel : ViewModel() {
             is AuthIntent.Send -> {
                 viewModelScope.launch(Dispatchers.Default) {
                     _uiState.update { AuthState.Loading }
-                    checkAndSaveAuthCodeUseCase.invoke("9999").fold(
+                    checkAndSaveAuthCodeUseCase.invoke(intent.text).fold(
                         onSuccess = {
-                            _actionFlow.emit(Unit)
+                            _actionFlow.emit(Unit)// переход на MainScreen
                         },
                         onFailure = { error ->
-                            error.printStackTrace()
-                            _actionFlow.emit(Unit)
+                            _uiState.update {
+                                AuthState.Data(error.message ?: "Неверный код для авторизации")
+                            }
                         }
                     )
                 }
             }
-            is AuthIntent.TextInput -> Unit
+            is AuthIntent.TextInput -> {
+                _uiState.update { AuthState.Data() }
+            }
         }
     }
 }