Implement Device Pairing and Config screens

app/src/main/java/com/m57/hermescontrol/Navigation.kt

@@ -22,9 +22,11 @@ import com.m57.hermescontrol.data.local.AuthManager
 import kotlinx.coroutines.launch
 import com.m57.hermescontrol.ui.achievements.AchievementsScreen as AchievementsScreenContent
 import com.m57.hermescontrol.ui.chat.ChatScreen as ChatScreenContent
+import com.m57.hermescontrol.ui.config.ConfigScreen as ConfigScreenContent
 import com.m57.hermescontrol.ui.connect.ConnectScreen as ConnectScreenContent
 import com.m57.hermescontrol.ui.cron.CronJobsScreen as CronJobsScreenContent
 import com.m57.hermescontrol.ui.gateway.GatewayScreen as GatewayScreenContent
+import com.m57.hermescontrol.ui.pairing.PairingScreen as PairingScreenContent
 import com.m57.hermescontrol.ui.profiles.ProfilesScreen as ProfilesScreenContent
 import com.m57.hermescontrol.ui.settings.SettingsScreen as SettingsScreenContent
 import com.m57.hermescontrol.ui.skills.SkillsScreen as SkillsScreenContent
@@ -45,7 +47,8 @@ fun MainNavigation() {
     val gesturesEnabled =
         currentScreen == ChatScreen || currentScreen == SkillsScreen || currentScreen == CronJobsScreen ||
             currentScreen == GatewayScreen || currentScreen == ProfilesScreen ||
-            currentScreen == ToolsetsScreen || currentScreen == AchievementsScreen
+            currentScreen == ToolsetsScreen || currentScreen == AchievementsScreen ||
+            currentScreen == PairingScreen || currentScreen == ConfigScreen
     val openDrawer = { scope.launch { drawerState.open() } }
 
     ModalNavigationDrawer(
@@ -114,6 +117,24 @@ fun MainNavigation() {
                         },
                         modifier = Modifier.padding(horizontal = 12.dp, vertical = 4.dp),
                     )
+                    NavigationDrawerItem(
+                        label = { Text("Pairing") },
+                        selected = currentScreen == PairingScreen,
+                        onClick = {
+                            scope.launch { drawerState.close() }
+                            NavigationController.navigateTo(PairingScreen)
+                        },
+                        modifier = Modifier.padding(horizontal = 12.dp, vertical = 4.dp),
+                    )
+                    NavigationDrawerItem(
+                        label = { Text("Config") },
+                        selected = currentScreen == ConfigScreen,
+                        onClick = {
+                            scope.launch { drawerState.close() }
+                            NavigationController.navigateTo(ConfigScreen)
+                        },
+                        modifier = Modifier.padding(horizontal = 12.dp, vertical = 4.dp),
+                    )
                     NavigationDrawerItem(
                         label = { Text("Gateway") },
                         selected = currentScreen == GatewayScreen,
@@ -189,6 +210,18 @@ fun MainNavigation() {
                         )
                     }
 
+                    entry<PairingScreen> {
+                        PairingScreenContent(
+                            onOpenDrawer = { openDrawer() },
+                        )
+                    }
+
+                    entry<ConfigScreen> {
+                        ConfigScreenContent(
+                            onOpenDrawer = { openDrawer() },
+                        )
+                    }
+
                     entry<GatewayScreen> {
                         GatewayScreenContent(
                             onOpenDrawer = { openDrawer() },

app/src/main/java/com/m57/hermescontrol/NavigationKeys.kt

@@ -20,3 +20,7 @@ import kotlinx.serialization.Serializable
 @Serializable data object ToolsetsScreen : NavKey
 
 @Serializable data object AchievementsScreen : NavKey
+
+@Serializable data object PairingScreen : NavKey
+
+@Serializable data object ConfigScreen : NavKey

app/src/main/java/com/m57/hermescontrol/data/model/Config.kt

@@ -0,0 +1,11 @@
+package com.m57.hermescontrol.data.model
+
+data class RawConfigResponse(
+    val path: String?,
+    val yaml: String?,
+)
+
+data class UpdateRawConfigRequest(
+    val yaml_text: String,
+    val profile: String? = null,
+)

app/src/main/java/com/m57/hermescontrol/data/model/Pairing.kt

@@ -0,0 +1,25 @@
+package com.m57.hermescontrol.data.model
+
+data class PairingResponse(
+    val pending: List<PairingItem>,
+    val approved: List<PairingItem>,
+)
+
+data class PairingItem(
+    val platform: String,
+    val user_id: String?,
+    val username: String?,
+    val display_name: String?,
+    val code: String?,
+    val created_at: String?,
+)
+
+data class PairingApproveRequest(
+    val platform: String,
+    val code: String,
+)
+
+data class PairingRevokeRequest(
+    val platform: String,
+    val user_id: String,
+)

app/src/main/java/com/m57/hermescontrol/data/remote/HermesApiService.kt

@@ -3,8 +3,12 @@ package com.m57.hermescontrol.data.remote
 import com.m57.hermescontrol.data.model.AchievementsResponse
 import com.m57.hermescontrol.data.model.ActiveProfileResponse
 import com.m57.hermescontrol.data.model.CronJob
+import com.m57.hermescontrol.data.model.PairingApproveRequest
+import com.m57.hermescontrol.data.model.PairingResponse
+import com.m57.hermescontrol.data.model.PairingRevokeRequest
 import com.m57.hermescontrol.data.model.ProfileSoulResponse
 import com.m57.hermescontrol.data.model.ProfilesResponse
+import com.m57.hermescontrol.data.model.RawConfigResponse
 import com.m57.hermescontrol.data.model.SessionListResponse
 import com.m57.hermescontrol.data.model.SessionMessagesResponse
 import com.m57.hermescontrol.data.model.SetActiveProfileRequest
@@ -17,6 +21,7 @@ import com.m57.hermescontrol.data.model.ToolsetToggleRequest
 import com.m57.hermescontrol.data.model.UpdateProfileDescriptionRequest
 import com.m57.hermescontrol.data.model.UpdateProfileModelRequest
 import com.m57.hermescontrol.data.model.UpdateProfileSoulRequest
+import com.m57.hermescontrol.data.model.UpdateRawConfigRequest
 import retrofit2.Response
 import retrofit2.http.Body
 import retrofit2.http.DELETE
@@ -128,4 +133,28 @@ interface HermesApiService {
 
     @GET("api/plugins/hermes-achievements/achievements")
     suspend fun getAchievements(): Response<AchievementsResponse>
+
+    @GET("api/pairing")
+    suspend fun getPairing(): Response<PairingResponse>
+
+    @POST("api/pairing/approve")
+    suspend fun approvePairing(
+        @Body body: PairingApproveRequest,
+    ): Response<Unit>
+
+    @POST("api/pairing/revoke")
+    suspend fun revokePairing(
+        @Body body: PairingRevokeRequest,
+    ): Response<Unit>
+
+    @POST("api/pairing/clear-pending")
+    suspend fun clearPendingPairing(): Response<Unit>
+
+    @GET("api/config/raw")
+    suspend fun getRawConfig(): Response<RawConfigResponse>
+
+    @PUT("api/config/raw")
+    suspend fun updateRawConfig(
+        @Body body: UpdateRawConfigRequest,
+    ): Response<Unit>
 }

app/src/main/java/com/m57/hermescontrol/ui/config/ConfigScreen.kt

@@ -0,0 +1,164 @@
+package com.m57.hermescontrol.ui.config
+
+import android.widget.Toast
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Menu
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+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
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.lifecycle.viewmodel.compose.viewModel
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun ConfigScreen(
+    modifier: Modifier = Modifier,
+    onOpenDrawer: (() -> Unit)? = null,
+    viewModel: ConfigViewModel = viewModel { ConfigViewModel() },
+) {
+    val state by viewModel.uiState.collectAsStateWithLifecycle()
+    val context = LocalContext.current
+    var editingText by remember(state.yamlText) { mutableStateOf(state.yamlText ?: "") }
+
+    LaunchedEffect(Unit) {
+        viewModel.loadRawConfig()
+    }
+
+    LaunchedEffect(state.toastMessage) {
+        state.toastMessage?.let { msg ->
+            Toast.makeText(context, msg, Toast.LENGTH_SHORT).show()
+            viewModel.clearToast()
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                navigationIcon = {
+                    if (onOpenDrawer != null) {
+                        IconButton(onClick = onOpenDrawer) {
+                            Icon(
+                                imageVector = Icons.Filled.Menu,
+                                contentDescription = "Open Drawer",
+                            )
+                        }
+                    }
+                },
+                title = { Text("Raw Configuration") },
+                actions = {
+                    IconButton(onClick = { viewModel.loadRawConfig() }) {
+                        Icon(imageVector = Icons.Filled.Refresh, contentDescription = "Refresh")
+                    }
+                },
+            )
+        },
+        modifier = modifier,
+    ) { paddingValues ->
+        Box(
+            modifier =
+                Modifier
+                    .fillMaxSize()
+                    .padding(paddingValues),
+        ) {
+            if (state.isLoading && state.yamlText == null) {
+                CircularProgressIndicator(modifier = Modifier.align(Alignment.Center))
+            } else if (state.errorMessage != null && state.yamlText == null) {
+                Column(
+                    modifier =
+                        Modifier
+                            .align(Alignment.Center)
+                            .padding(16.dp),
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                ) {
+                    Text(text = state.errorMessage ?: "", color = MaterialTheme.colorScheme.error)
+                    Spacer(modifier = Modifier.height(16.dp))
+                    Button(onClick = { viewModel.loadRawConfig() }) {
+                        Text("Retry")
+                    }
+                }
+            } else {
+                Column(
+                    modifier =
+                        Modifier
+                            .fillMaxSize()
+                            .padding(16.dp),
+                ) {
+                    state.path?.let {
+                        Text(
+                            text = "Path: $it",
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.padding(bottom = 8.dp),
+                        )
+                    }
+
+                    OutlinedTextField(
+                        value = editingText,
+                        onValueChange = { editingText = it },
+                        modifier =
+                            Modifier
+                                .fillMaxWidth()
+                                .weight(1f),
+                        placeholder = { Text("YAML Config...") },
+                        textStyle = MaterialTheme.typography.bodyMedium.copy(fontFamily = FontFamily.Monospace),
+                        maxLines = Int.MAX_VALUE,
+                    )
+
+                    Spacer(modifier = Modifier.height(16.dp))
+
+                    Row(modifier = Modifier.fillMaxWidth()) {
+                        OutlinedButton(
+                            onClick = { editingText = state.yamlText ?: "" },
+                            modifier = Modifier.weight(1f),
+                        ) {
+                            Text("Reset")
+                        }
+
+                        Spacer(modifier = Modifier.width(16.dp))
+
+                        Button(
+                            onClick = { viewModel.saveRawConfig(editingText) },
+                            modifier = Modifier.weight(1f),
+                            enabled = !state.isSaving,
+                        ) {
+                            if (state.isSaving) {
+                                CircularProgressIndicator(modifier = Modifier.width(16.dp))
+                            } else {
+                                Text("Save Config")
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/m57/hermescontrol/ui/config/ConfigViewModel.kt

@@ -0,0 +1,101 @@
+package com.m57.hermescontrol.ui.config
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.m57.hermescontrol.data.model.UpdateRawConfigRequest
+import com.m57.hermescontrol.data.remote.ApiClient
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+data class ConfigUiState(
+    val isLoading: Boolean = false,
+    val isSaving: Boolean = false,
+    val path: String? = null,
+    val yamlText: String? = null,
+    val errorMessage: String? = null,
+    val toastMessage: String? = null,
+)
+
+class ConfigViewModel : ViewModel() {
+    private val _uiState = MutableStateFlow(ConfigUiState())
+    val uiState: StateFlow<ConfigUiState> = _uiState.asStateFlow()
+
+    fun loadRawConfig() {
+        _uiState.update { it.copy(isLoading = true, errorMessage = null) }
+        viewModelScope.launch {
+            try {
+                val response =
+                    withContext(Dispatchers.IO) {
+                        ApiClient.hermesApi.getRawConfig()
+                    }
+                if (response.isSuccessful) {
+                    _uiState.update {
+                        it.copy(
+                            isLoading = false,
+                            path = response.body()?.path,
+                            yamlText = response.body()?.yaml,
+                        )
+                    }
+                } else {
+                    _uiState.update {
+                        it.copy(
+                            isLoading = false,
+                            errorMessage = "Failed to load config: HTTP ${response.code()}",
+                        )
+                    }
+                }
+            } catch (e: Exception) {
+                _uiState.update {
+                    it.copy(
+                        isLoading = false,
+                        errorMessage = "Failed to load config: ${e.message}",
+                    )
+                }
+            }
+        }
+    }
+
+    fun saveRawConfig(yamlText: String) {
+        _uiState.update { it.copy(isSaving = true) }
+        viewModelScope.launch {
+            try {
+                val response =
+                    withContext(Dispatchers.IO) {
+                        ApiClient.hermesApi.updateRawConfig(UpdateRawConfigRequest(yamlText))
+                    }
+                if (response.isSuccessful) {
+                    _uiState.update {
+                        it.copy(
+                            isSaving = false,
+                            yamlText = yamlText,
+                            toastMessage = "Configuration saved successfully",
+                        )
+                    }
+                } else {
+                    _uiState.update {
+                        it.copy(
+                            isSaving = false,
+                            toastMessage = "Failed to save config: HTTP ${response.code()}",
+                        )
+                    }
+                }
+            } catch (e: Exception) {
+                _uiState.update {
+                    it.copy(
+                        isSaving = false,
+                        toastMessage = "Failed to save config: ${e.message}",
+                    )
+                }
+            }
+        }
+    }
+
+    fun clearToast() {
+        _uiState.update { it.copy(toastMessage = null) }
+    }
+}

app/src/main/java/com/m57/hermescontrol/ui/pairing/PairingScreen.kt

@@ -0,0 +1,271 @@
+package com.m57.hermescontrol.ui.pairing
+
+import android.widget.Toast
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+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.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Menu
+import androidx.compose.material.icons.filled.Refresh
+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.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.lifecycle.viewmodel.compose.viewModel
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun PairingScreen(
+    modifier: Modifier = Modifier,
+    onOpenDrawer: (() -> Unit)? = null,
+    viewModel: PairingViewModel = viewModel { PairingViewModel() },
+) {
+    val state by viewModel.uiState.collectAsStateWithLifecycle()
+    val context = LocalContext.current
+
+    LaunchedEffect(Unit) {
+        viewModel.loadPairing()
+    }
+
+    LaunchedEffect(state.toastMessage) {
+        state.toastMessage?.let { msg ->
+            Toast.makeText(context, msg, Toast.LENGTH_SHORT).show()
+            viewModel.clearToast()
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                navigationIcon = {
+                    if (onOpenDrawer != null) {
+                        IconButton(onClick = onOpenDrawer) {
+                            Icon(
+                                imageVector = Icons.Filled.Menu,
+                                contentDescription = "Open Drawer",
+                            )
+                        }
+                    }
+                },
+                title = { Text("Device Pairing") },
+                actions = {
+                    IconButton(onClick = { viewModel.loadPairing() }) {
+                        Icon(imageVector = Icons.Filled.Refresh, contentDescription = "Refresh")
+                    }
+                },
+            )
+        },
+        modifier = modifier,
+    ) { paddingValues ->
+        Box(
+            modifier =
+                Modifier
+                    .fillMaxSize()
+                    .padding(paddingValues),
+        ) {
+            if (state.isLoading && state.pairing == null) {
+                CircularProgressIndicator(modifier = Modifier.align(Alignment.Center))
+            } else if (state.errorMessage != null && state.pairing == null) {
+                Column(
+                    modifier =
+                        Modifier
+                            .align(Alignment.Center)
+                            .padding(16.dp),
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                ) {
+                    Text(text = state.errorMessage ?: "", color = MaterialTheme.colorScheme.error)
+                    Spacer(modifier = Modifier.height(16.dp))
+                    Button(onClick = { viewModel.loadPairing() }) {
+                        Text("Retry")
+                    }
+                }
+            } else {
+                val pairing = state.pairing
+                val pending = pairing?.pending.orEmpty()
+                val approved = pairing?.approved.orEmpty()
+
+                LazyColumn(
+                    modifier = Modifier.fillMaxSize(),
+                    contentPadding = PaddingValues(16.dp),
+                    verticalArrangement = Arrangement.spacedBy(16.dp),
+                ) {
+                    if (pending.isNotEmpty()) {
+                        item {
+                            Row(
+                                modifier = Modifier.fillMaxWidth(),
+                                horizontalArrangement = Arrangement.SpaceBetween,
+                                verticalAlignment = Alignment.CenterVertically,
+                            ) {
+                                Text(
+                                    text = "Pending Approvals",
+                                    style = MaterialTheme.typography.titleMedium,
+                                    fontWeight = FontWeight.Bold,
+                                )
+
+                                OutlinedButton(
+                                    onClick = { viewModel.clearPending() },
+                                    colors =
+                                        ButtonDefaults.outlinedButtonColors(
+                                            contentColor = MaterialTheme.colorScheme.error,
+                                        ),
+                                ) {
+                                    Text("Clear All")
+                                }
+                            }
+                        }
+
+                        items(pending) { item ->
+                            Card(
+                                modifier = Modifier.fillMaxWidth(),
+                                colors =
+                                    CardDefaults.cardColors(
+                                        containerColor = MaterialTheme.colorScheme.errorContainer.copy(alpha = 0.2f),
+                                    ),
+                            ) {
+                                Row(
+                                    modifier =
+                                        Modifier
+                                            .fillMaxWidth()
+                                            .padding(16.dp),
+                                    horizontalArrangement = Arrangement.SpaceBetween,
+                                    verticalAlignment = Alignment.CenterVertically,
+                                ) {
+                                    Column(modifier = Modifier.weight(1f)) {
+                                        Text(
+                                            text = "Platform: ${item.platform.uppercase()}",
+                                            style = MaterialTheme.typography.titleMedium,
+                                            fontWeight = FontWeight.SemiBold,
+                                        )
+                                        item.code?.let {
+                                            Text(
+                                                text = "Pairing Code: $it",
+                                                style = MaterialTheme.typography.bodyLarge,
+                                                color = MaterialTheme.colorScheme.primary,
+                                                fontWeight = FontWeight.Bold,
+                                            )
+                                        }
+                                    }
+
+                                    Button(
+                                        onClick = {
+                                            viewModel.approvePairing(item.platform, item.code ?: "")
+                                        },
+                                        colors =
+                                            ButtonDefaults.buttonColors(
+                                                containerColor = MaterialTheme.colorScheme.primary,
+                                            ),
+                                    ) {
+                                        Text("Approve")
+                                    }
+                                }
+                            }
+                        }
+                    }
+
+                    item {
+                        Text(
+                            text = "Approved Devices",
+                            style = MaterialTheme.typography.titleMedium,
+                            fontWeight = FontWeight.Bold,
+                        )
+                    }
+
+                    if (approved.isEmpty()) {
+                        item {
+                            Card(
+                                modifier = Modifier.fillMaxWidth(),
+                            ) {
+                                Box(
+                                    modifier =
+                                        Modifier
+                                            .fillMaxWidth()
+                                            .padding(24.dp),
+                                    contentAlignment = Alignment.Center,
+                                ) {
+                                    Text(
+                                        text = "No approved devices paired yet.",
+                                        style = MaterialTheme.typography.bodyMedium,
+                                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                                    )
+                                }
+                            }
+                        }
+                    } else {
+                        items(approved) { item ->
+                            Card(
+                                modifier = Modifier.fillMaxWidth(),
+                            ) {
+                                Row(
+                                    modifier =
+                                        Modifier
+                                            .fillMaxWidth()
+                                            .padding(16.dp),
+                                    horizontalArrangement = Arrangement.SpaceBetween,
+                                    verticalAlignment = Alignment.CenterVertically,
+                                ) {
+                                    Column(modifier = Modifier.weight(1f)) {
+                                        Text(
+                                            text = "Platform: ${item.platform.uppercase()}",
+                                            style = MaterialTheme.typography.titleMedium,
+                                            fontWeight = FontWeight.SemiBold,
+                                        )
+                                        Text(
+                                            text = "User ID: ${item.user_id ?: "Unknown"}",
+                                            style = MaterialTheme.typography.bodyMedium,
+                                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                                        )
+                                        item.username?.let {
+                                            Text(
+                                                text = "Username: @$it",
+                                                style = MaterialTheme.typography.bodySmall,
+                                            )
+                                        }
+                                    }
+
+                                    OutlinedButton(
+                                        onClick = {
+                                            viewModel.revokePairing(item.platform, item.user_id ?: "")
+                                        },
+                                        colors =
+                                            ButtonDefaults.outlinedButtonColors(
+                                                contentColor = MaterialTheme.colorScheme.error,
+                                            ),
+                                    ) {
+                                        Text("Revoke")
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/m57/hermescontrol/ui/pairing/PairingViewModel.kt

@@ -0,0 +1,120 @@
+package com.m57.hermescontrol.ui.pairing
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.m57.hermescontrol.data.model.PairingApproveRequest
+import com.m57.hermescontrol.data.model.PairingResponse
+import com.m57.hermescontrol.data.model.PairingRevokeRequest
+import com.m57.hermescontrol.data.remote.ApiClient
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+data class PairingUiState(
+    val isLoading: Boolean = false,
+    val isActionRunning: Boolean = false,
+    val pairing: PairingResponse? = null,
+    val errorMessage: String? = null,
+    val toastMessage: String? = null,
+)
+
+class PairingViewModel : ViewModel() {
+    private val _uiState = MutableStateFlow(PairingUiState())
+    val uiState: StateFlow<PairingUiState> = _uiState.asStateFlow()
+
+    fun loadPairing() {
+        _uiState.update { it.copy(isLoading = true, errorMessage = null) }
+        viewModelScope.launch {
+            try {
+                val response =
+                    withContext(Dispatchers.IO) {
+                        ApiClient.hermesApi.getPairing()
+                    }
+                if (response.isSuccessful) {
+                    _uiState.update { it.copy(isLoading = false, pairing = response.body()) }
+                } else {
+                    _uiState.update {
+                        it.copy(
+                            isLoading = false,
+                            errorMessage = "Failed to load pairing info: HTTP ${response.code()}",
+                        )
+                    }
+                }
+            } catch (e: Exception) {
+                _uiState.update {
+                    it.copy(
+                        isLoading = false,
+                        errorMessage = "Failed to load pairing info: ${e.message}",
+                    )
+                }
+            }
+        }
+    }
+
+    fun approvePairing(
+        platform: String,
+        code: String,
+    ) {
+        runAction("Approve") {
+            ApiClient.hermesApi.approvePairing(PairingApproveRequest(platform, code))
+        }
+    }
+
+    fun revokePairing(
+        platform: String,
+        userId: String,
+    ) {
+        runAction("Revoke") {
+            ApiClient.hermesApi.revokePairing(PairingRevokeRequest(platform, userId))
+        }
+    }
+
+    fun clearPending() {
+        runAction("Clear Pending") {
+            ApiClient.hermesApi.clearPendingPairing()
+        }
+    }
+
+    private fun runAction(
+        actionName: String,
+        apiCall: suspend () -> retrofit2.Response<Unit>,
+    ) {
+        _uiState.update { it.copy(isActionRunning = true) }
+        viewModelScope.launch {
+            try {
+                val response = withContext(Dispatchers.IO) { apiCall() }
+                if (response.isSuccessful) {
+                    _uiState.update {
+                        it.copy(
+                            isActionRunning = false,
+                            toastMessage = "Pairing action '$actionName' succeeded",
+                        )
+                    }
+                    loadPairing()
+                } else {
+                    _uiState.update {
+                        it.copy(
+                            isActionRunning = false,
+                            toastMessage = "Action '$actionName' failed: HTTP ${response.code()}",
+                        )
+                    }
+                }
+            } catch (e: Exception) {
+                _uiState.update {
+                    it.copy(
+                        isActionRunning = false,
+                        toastMessage = "Action '$actionName' failed: ${e.message}",
+                    )
+                }
+            }
+        }
+    }
+
+    fun clearToast() {
+        _uiState.update { it.copy(toastMessage = null) }
+    }
+}