feat(#471): implement DataStore-based server configuration and self-h… (#477)

* feat(#471): implement DataStore-based server configuration and self-healing

* refactor(#471): address Sourcery feedback on ANR risk and reset method splitting

* refactor(#471): implement synchronous ServerStore initialization to fully remove ANR risk

* feat(#471): show profile name, host and port on add profile, redirect to login on save, and support shortcut login buttons for existing profiles

app/src/main/java/com/m57/hermescontrol/ui/authlogin/AuthLoginScreen.kt

@@ -18,11 +18,13 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.AccountCircle
 import androidx.compose.material.icons.filled.Bolt
 import androidx.compose.material.icons.filled.Visibility
 import androidx.compose.material.icons.filled.VisibilityOff
 import androidx.compose.material3.Button
 import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
@@ -126,6 +128,31 @@ fun AuthLoginScreen(
 
             Spacer(modifier = Modifier.height(8.dp))
 
+            if (state.loggedInProfiles.isNotEmpty()) {
+                Text(
+                    text = stringResource(R.string.auth_login_existing_profiles_title),
+                    style = MaterialTheme.typography.titleSmall,
+                    modifier = Modifier.padding(top = 8.dp),
+                )
+                state.loggedInProfiles.forEach { profile ->
+                    androidx.compose.material3.OutlinedButton(
+                        onClick = { viewModel.useExistingProfile(profile.id) },
+                        modifier = Modifier.fillMaxWidth(),
+                    ) {
+                        Icon(
+                            imageVector = Icons.Filled.AccountCircle,
+                            contentDescription = null,
+                            modifier = Modifier.size(18.dp),
+                        )
+                        Spacer(modifier = Modifier.size(8.dp))
+                        Text(stringResource(R.string.auth_login_use_profile, profile.name))
+                    }
+                }
+                Spacer(modifier = Modifier.height(8.dp))
+                HorizontalDivider(color = MaterialTheme.colorScheme.outlineVariant)
+                Spacer(modifier = Modifier.height(8.dp))
+            }
+
             // Host field
             OutlinedTextField(
                 value = state.host,

app/src/main/java/com/m57/hermescontrol/ui/authlogin/AuthLoginViewModel.kt

@@ -6,6 +6,7 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import com.m57.hermescontrol.R
+import com.m57.hermescontrol.data.config.ConnectionProfile
 import com.m57.hermescontrol.data.local.AuthManager
 import com.m57.hermescontrol.data.remote.ApiClient
 import com.m57.hermescontrol.data.remote.safeApiCall
@@ -47,14 +48,42 @@ data class AuthLoginUiState(
     val authMode: DashboardAuthMode? = null,
     val connectionSuccess: Boolean = false,
     val errorMessage: String? = null,
+    val loggedInProfiles: List<ConnectionProfile> = emptyList(),
 )
 
 class AuthLoginViewModel(
     private val app: Application,
 ) : ViewModel() {
-    private val _uiState = MutableStateFlow(AuthLoginUiState())
+    private val _uiState =
+        MutableStateFlow(
+            AuthLoginUiState(
+                host = AuthManager.getHost(),
+                port = AuthManager.getPort().toString(),
+            ),
+        )
     val uiState: StateFlow<AuthLoginUiState> = _uiState.asStateFlow()
 
+    init {
+        loadLoggedInProfiles()
+    }
+
+    fun loadLoggedInProfiles() {
+        val allProfiles = AuthManager.getConnectionProfiles()
+        val loggedIn =
+            allProfiles.filter { profile ->
+                val token = AuthManager.getProfileToken(profile.id)
+                !token.isNullOrBlank()
+            }
+        _uiState.update { it.copy(loggedInProfiles = loggedIn) }
+    }
+
+    fun useExistingProfile(profileId: String) {
+        AuthManager.setSelectedProfileId(profileId)
+        ApiClient.rebuild()
+        HermesWsClient.connect()
+        _uiState.update { it.copy(connectionSuccess = true) }
+    }
+
     companion object {
         private const val TAG = "AuthLoginVM"
     }

app/src/main/java/com/m57/hermescontrol/ui/connect/ConnectViewModel.kt

@@ -5,6 +5,7 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import com.m57.hermescontrol.R
+import com.m57.hermescontrol.data.config.ConnectionProfile
 import com.m57.hermescontrol.data.local.AuthManager
 import com.m57.hermescontrol.data.remote.ApiClient
 import com.m57.hermescontrol.data.remote.NetworkError
@@ -30,8 +31,8 @@ data class ConnectUiState(
     val errorMessage: String? = null,
     val profileName: String = "",
     val saveProfile: Boolean = false,
-    val profiles: List<com.m57.hermescontrol.data.model.ConnectionProfile> = emptyList(),
-    val selectedProfile: com.m57.hermescontrol.data.model.ConnectionProfile? = null,
+    val profiles: List<ConnectionProfile> = emptyList(),
+    val selectedProfile: ConnectionProfile? = null,
 )
 
 class ConnectViewModel(
@@ -76,7 +77,7 @@ class ConnectViewModel(
         _uiState.update { it.copy(saveProfile = value) }
     }
 
-    fun selectProfile(profile: com.m57.hermescontrol.data.model.ConnectionProfile?) {
+    fun selectProfile(profile: ConnectionProfile?) {
         if (profile == null) {
             AuthManager.setSelectedProfileId(null)
             _uiState.update {
@@ -160,7 +161,7 @@ class ConnectViewModel(
                             if (existingIndex >= 0) {
                                 currentProfiles[existingIndex].copy(host = state.host, port = port)
                             } else {
-                                com.m57.hermescontrol.data.model.ConnectionProfile(
+                                ConnectionProfile(
                                     name = state.profileName,
                                     host = state.host,
                                     port = port,

app/src/main/java/com/m57/hermescontrol/ui/settings/SettingsScreen.kt

@@ -51,6 +51,7 @@ import androidx.compose.material3.Tab
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -84,11 +85,20 @@ enum class SettingsTab {
 @Composable
 fun SettingsScreen(
     onBack: () -> Unit,
+    onNavigateToLogin: () -> Unit = {},
     onLogout: () -> Unit = {},
     modifier: Modifier = Modifier,
     viewModel: SettingsViewModel = viewModel { SettingsViewModel() },
 ) {
     val state by viewModel.uiState.collectAsStateWithLifecycle()
+
+    LaunchedEffect(state.navigateToLogin) {
+        if (state.navigateToLogin) {
+            onNavigateToLogin()
+            viewModel.clearNavigateToLogin()
+        }
+    }
+
     var passwordVisible by remember { mutableStateOf(false) }
     var selectedTab by remember { mutableStateOf(SettingsTab.CONNECTION) }
 
@@ -615,19 +625,21 @@ private fun ProfileEditorDialog(
                     keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
                     modifier = Modifier.fillMaxWidth(),
                 )
-                OutlinedTextField(
-                    value = token,
-                    onValueChange = onTokenChange,
-                    label = { Text(stringResource(R.string.settings_field_token)) },
-                    singleLine = true,
-                    visualTransformation =
-                        if (token.isNotEmpty()) {
-                            PasswordVisualTransformation()
-                        } else {
-                            VisualTransformation.None
-                        },
-                    modifier = Modifier.fillMaxWidth(),
-                )
+                if (isEditing) {
+                    OutlinedTextField(
+                        value = token,
+                        onValueChange = onTokenChange,
+                        label = { Text(stringResource(R.string.settings_field_token)) },
+                        singleLine = true,
+                        visualTransformation =
+                            if (token.isNotEmpty()) {
+                                PasswordVisualTransformation()
+                            } else {
+                                VisualTransformation.None
+                            },
+                        modifier = Modifier.fillMaxWidth(),
+                    )
+                }
             }
         },
         confirmButton = {

app/src/main/java/com/m57/hermescontrol/ui/settings/SettingsViewModel.kt

@@ -3,6 +3,7 @@ package com.m57.hermescontrol.ui.settings
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.m57.hermescontrol.ScreenRegistry
+import com.m57.hermescontrol.data.config.ConnectionProfile
 import com.m57.hermescontrol.data.local.AuthManager
 import com.m57.hermescontrol.data.remote.ApiClient
 import com.m57.hermescontrol.data.remote.NetworkResult
@@ -34,7 +35,7 @@ data class SettingsUiState(
     val selectedNavItems: List<String> = emptyList(),
     val typingEffectEnabled: Boolean = false,
     val typingEffectDelayMs: Int = 30,
-    val profiles: List<com.m57.hermescontrol.data.model.ConnectionProfile> = emptyList(),
+    val profiles: List<ConnectionProfile> = emptyList(),
     val selectedProfileId: String? = null,
     val renameProfileName: String = "",
     val bottomNavDisplayMode: BottomNavDisplayMode = BottomNavDisplayMode.ICON_AND_TEXT,
@@ -49,6 +50,7 @@ data class SettingsUiState(
     val showDeleteConfirm: Boolean = false,
     val profileToDeleteId: String? = null,
     val profileToDeleteName: String = "",
+    val navigateToLogin: Boolean = false,
 )
 
 class SettingsViewModel(
@@ -209,14 +211,16 @@ class SettingsViewModel(
         } else {
             // Add new profile
             val newProfile =
-                com.m57.hermescontrol.data.model.ConnectionProfile(
+                ConnectionProfile(
                     name = name,
                     host = host,
                     port = port,
                 )
             profiles.add(newProfile)
             AuthManager.saveConnectionProfiles(profiles)
-            AuthManager.setProfileToken(newProfile.id, token)
+            AuthManager.setProfileToken(newProfile.id, "")
+            AuthManager.setSelectedProfileId(newProfile.id)
+            _uiState.update { it.copy(navigateToLogin = true) }
         }
 
         closeProfileDialog()
@@ -224,6 +228,10 @@ class SettingsViewModel(
         ApiClient.rebuild()
     }
 
+    fun clearNavigateToLogin() {
+        _uiState.update { it.copy(navigateToLogin = false) }
+    }
+
     // ── Delete confirmation ──────────────────────────────────────────────
 
     fun requestDeleteProfile(profileId: String) {