android/app/src/main/java/com/fabledsword/minstrel/player/ui/NowPlayingScreen.kt

@@ -2,6 +2,10 @@
 
 package com.fabledsword.minstrel.player.ui
 
+import android.Manifest
+import android.content.pm.PackageManager
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.animation.ExperimentalSharedTransitionApi
 import androidx.compose.foundation.background
 import androidx.compose.foundation.rememberScrollState
@@ -44,13 +48,17 @@ import androidx.compose.material3.Text
 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.draw.clip
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
+import androidx.core.content.ContextCompat
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
@@ -66,6 +74,11 @@ import com.composables.icons.lucide.Shuffle
 import com.composables.icons.lucide.SkipBack
 import com.composables.icons.lucide.SkipForward
 import com.fabledsword.minstrel.player.RepeatMode
+import com.fabledsword.minstrel.player.output.DeviceChip
+import com.fabledsword.minstrel.player.output.OutputPickerSheet
+import com.fabledsword.minstrel.player.output.OutputPickerViewModel
+import com.fabledsword.minstrel.player.output.OutputRoute
+import com.fabledsword.minstrel.player.output.RouteSnapshot
 import com.fabledsword.minstrel.nav.AlbumDetail
 import com.fabledsword.minstrel.nav.ArtistDetail
 import com.fabledsword.minstrel.nav.HERO_KEY_NOW_PLAYING_COVER
@@ -268,6 +281,32 @@ private fun NowPlayingBody(
 ) {
     val isLiked by trackActionsViewModel.isLikedFlow(track.id)
         .collectAsStateWithLifecycle(initialValue = false)
+    val outputViewModel: OutputPickerViewModel = hiltViewModel()
+    val routes by outputViewModel.routes.collectAsStateWithLifecycle()
+    val sheetVisible by outputViewModel.sheetVisible.collectAsStateWithLifecycle()
+
+    // One-shot BLUETOOTH_CONNECT permission flow. The launcher is
+    // remembered across recompositions; the LaunchedEffect fires
+    // exactly once when the sheet opens for the first time per
+    // composition. Subsequent opens are no-ops; the system remembers
+    // the user's choice.
+    val context = LocalContext.current
+    var permissionDenied by remember { mutableStateOf(false) }
+    val permissionLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestPermission(),
+    ) { granted ->
+        permissionDenied = !granted
+    }
+    LaunchedEffect(sheetVisible) {
+        if (sheetVisible &&
+            ContextCompat.checkSelfPermission(
+                context,
+                Manifest.permission.BLUETOOTH_CONNECT,
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            permissionLauncher.launch(Manifest.permission.BLUETOOTH_CONNECT)
+        }
+    }
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -295,6 +334,17 @@ private fun NowPlayingBody(
             onToggleShuffle = viewModel::toggleShuffle,
             onCycleRepeat = viewModel::cycleRepeat,
         )
+        // Spec visibility rule: hide the chip when the only route is the
+        // built-in speaker — no picker is useful with one option. Chip
+        // reappears the moment a Bluetooth pair or wired plug arrives.
+        if (shouldShowChip(routes)) {
+            Spacer(Modifier.height(8.dp))
+            DeviceChip(
+                route = routes.current,
+                onClick = outputViewModel::onChipTapped,
+                modifier = Modifier.align(Alignment.CenterHorizontally),
+            )
+        }
         Spacer(Modifier.height(4.dp))
         val smoothPositionMs by rememberSmoothPositionMs(
             positionMs = state.positionMs,
@@ -314,6 +364,20 @@ private fun NowPlayingBody(
             onNext = viewModel::skipToNext,
         )
     }
+    if (sheetVisible) {
+        OutputPickerSheet(
+            snapshot = routes,
+            permissionDenied = permissionDenied,
+            onRouteSelected = outputViewModel::onRouteSelected,
+            onDismiss = outputViewModel::onSheetDismissed,
+        )
+    }
+}
+
+private fun shouldShowChip(snapshot: RouteSnapshot): Boolean {
+    val onlyBuiltIn = snapshot.available.size == 1 &&
+        snapshot.available.first().kind == OutputRoute.Kind.BuiltIn
+    return !onlyBuiltIn
 }
 
 @Composable