Updates build_whitelabel to regenerate album art for android auto app

Reviewed-on: http://192.168.1.74:30008/kfj001/kryz-go-flutter/pulls/8

.devcontainer/Dockerfile

@@ -4,7 +4,7 @@ ENV PATH="$PATH:/opt/flutter/bin"
 
 # Install system dependencies
 RUN apt-get update && apt-get install -y \
-    wget curl unzip git xz-utils zip libglu1-mesa openjdk-17-jdk\
+    wget curl unzip git xz-utils zip cmake clang pkg-config mesa-utils python3 pip pipx lld libgtk-3-dev ninja-build libglu1-mesa openjdk-17-jdk\
     && rm -rf /var/lib/apt/lists/*
 
 # Become non-root

.devcontainer/devcontainer.json

@@ -1,5 +1,8 @@
 {
   "name": "kryz-go",
+  "mounts": [
+    // "source=/dev/dri,target=/dev/dri,type=bind"
+  ],
   "build": {
     "dockerfile": "Dockerfile"
   },
@@ -11,5 +14,11 @@
       ]
     }
   },
-  "postCreateCommand": "flutter doctor -v"
+  "postCreateCommand": "flutter pub get && python3 -m venv .venv && . .venv/bin/activate && pip install --upgrade pip && pip install -r requirements.txt && curl -fsSL https://claude.ai/install.sh | bash",
+  "postStartCommand": ".venv/bin/activate",
+  "containerEnv": {
+    "ANTHROPIC_BASE_URL": "http://192.168.1.108:1234",
+    "ANTHROPIC_API_KEY": "lmstudio",
+    "ANTHROPIC_BASE_MODEL": "qwen/qwen3.6-27b"
+  }
 }

.gitignore

@@ -1,3 +1,6 @@
+# Generated whitelabel config — rebuilt by build_whitelabel.py
+lib/generated/
+
 # ---> Dart
 # See https://www.dartlang.org/guides/libraries/private-files
 
@@ -69,7 +72,7 @@ google-services.json
 .LSOverride
 
 # Icon must end with two \r
-Icon
+Icon
 
 # Thumbnails
 ._*
@@ -90,3 +93,8 @@ Network Trash Folder
 Temporary Items
 .apdisk
 
+# Python venv
+.venv/
+
+# Whitelabel app theming
+theme.json

android/app/build.gradle.kts

@@ -5,6 +5,13 @@ plugins {
     id("dev.flutter.flutter-gradle-plugin")
 }
 
+dependencies {
+    implementation("com.google.android.gms:play-services-cast-framework:22.1.0")
+    implementation("androidx.mediarouter:mediarouter:1.7.0")
+    implementation("androidx.appcompat:appcompat:1.7.0")
+    implementation("androidx.media:media:1.7.0")
+}
+
 android {
     namespace = "com.example.kryz_go_flutter"
     compileSdk = flutter.compileSdkVersion

android/app/src/main/AndroidManifest.xml

@@ -5,9 +5,10 @@
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK"/>
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"/>
 
     <application
-        android:label="KRYZ Go!"
+        android:label="KMountain Flower Radio"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity
@@ -37,6 +38,14 @@
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />
+        <meta-data
+            android:name="com.google.android.gms.cast.framework.OPTIONS_PROVIDER_CLASS_NAME"
+            android:value="com.example.kryz_go_flutter.CastOptionsProvider" />
+
+        <!-- Declares this app as an Android Auto media app. -->
+        <meta-data
+            android:name="com.google.android.gms.car.application"
+            android:resource="@xml/automotive_app_desc" />
 
         <service
             android:name="com.ryanheise.audioservice.AudioService"
@@ -44,6 +53,20 @@
             android:exported="true"
             android:foregroundServiceType="mediaPlayback"
             tools:ignore="Instantiatable">
+        </service>
+
+        <!--
+          Dedicated MediaBrowserService for Android Auto. Android Auto connects here
+          to browse content and send transport controls. Styled with KryzAutoTheme
+          so Auto accents its media UI with the KRYZ brand orange (#E36A18).
+        -->
+        <service
+            android:name="com.example.kryz_go_flutter.KryzAutoMediaBrowserService"
+            android:enabled="true"
+            android:exported="true"
+            android:foregroundServiceType="mediaPlayback"
+            android:theme="@style/KryzAutoTheme"
+            tools:ignore="Instantiatable">
             <intent-filter>
                 <action android:name="android.media.browse.MediaBrowserService"/>
             </intent-filter>

android/app/src/main/kotlin/com/example/kryz_go_flutter/CastOptionsProvider.kt

@@ -0,0 +1,24 @@
+package com.example.kryz_go_flutter
+
+import android.content.Context
+import com.google.android.gms.cast.LaunchOptions
+import com.google.android.gms.cast.framework.CastOptions
+import com.google.android.gms.cast.framework.OptionsProvider
+import com.google.android.gms.cast.framework.SessionProvider
+
+class CastOptionsProvider : OptionsProvider {
+    override fun getCastOptions(context: Context): CastOptions {
+        return CastOptions.Builder()
+            .setReceiverApplicationId(context.getString(R.string.cast_receiver_app_id))
+            .setLaunchOptions(
+                LaunchOptions.Builder()
+                    .setAndroidReceiverCompatible(true)
+                    .build(),
+            )
+            .build()
+    }
+
+    override fun getAdditionalSessionProviders(context: Context): MutableList<SessionProvider>? {
+        return null
+    }
+}

android/app/src/main/kotlin/com/example/kryz_go_flutter/KryzAutoMediaBrowserService.kt

@@ -0,0 +1,466 @@
+package com.example.kryz_go_flutter
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.os.Handler
+import android.os.Looper
+import android.support.v4.media.MediaBrowserCompat
+import android.net.Uri
+import android.os.Build
+import android.os.Bundle
+import android.support.v4.media.MediaBrowserCompat.MediaItem
+import android.support.v4.media.MediaDescriptionCompat
+import android.support.v4.media.MediaMetadataCompat
+import android.support.v4.media.session.MediaControllerCompat
+import android.support.v4.media.session.MediaSessionCompat
+import android.support.v4.media.session.PlaybackStateCompat
+import android.util.Log
+import androidx.core.app.NotificationCompat
+import androidx.media.MediaBrowserServiceCompat
+import com.ryanheise.audioservice.AudioService
+
+/**
+ * MediaBrowserService for Android Auto.
+ *
+ * Android Auto connects to this service to browse content and send transport
+ * controls. Playback execution is delegated to Flutter's audio_service session.
+ *
+ * Brand color (#E36A18) is declared on this service via KryzAutoTheme in styles.xml
+ * so Android Auto accents its media UI with the KRYZ orange.
+ */
+class KryzAutoMediaBrowserService : MediaBrowserServiceCompat() {
+
+    companion object {
+        private const val TAG = "KryzAutoService"
+        private const val MEDIA_ID_ROOT = "kryz_root"
+        private const val MEDIA_ID_LIVE = "kryz_live_stream"
+        private const val STREAM_URL = "https://libretime.westerntechnologies.duckdns.org/main"
+        private const val NOTIFICATION_CHANNEL_ID = "com.kryzgoflutter.auto.channel"
+        private const val NOTIFICATION_ID = 1001
+    }
+
+    private lateinit var mediaSession: MediaSessionCompat
+    private var audioServiceBrowser: MediaBrowserCompat? = null
+    private var audioServiceController: MediaControllerCompat? = null
+    private val mainHandler = Handler(Looper.getMainLooper())
+    private var pendingPlayRequest: Boolean = false
+    private var pendingStopRequest: Boolean = false
+    private var reconnectScheduled: Boolean = false
+
+    /**
+     * Album-art bitmap loaded from the drawable resource.
+     * Embedded directly into MediaMetadata so Android Auto cannot serve a stale URI cache.
+     */
+    private val albumArtBitmap: Bitmap by lazy {
+        BitmapFactory.decodeResource(resources, R.drawable.kryz_auto_art)
+    }
+
+    private val mediaControllerCallback = object : MediaControllerCompat.Callback() {
+        override fun onPlaybackStateChanged(state: PlaybackStateCompat?) {
+            applyPlaybackStateFromFlutter(state)
+        }
+
+        override fun onMetadataChanged(metadata: MediaMetadataCompat?) {
+            applyNowPlayingMetadataFromFlutter(metadata)
+        }
+    }
+
+    private val browserConnectionCallback = object : MediaBrowserCompat.ConnectionCallback() {
+        override fun onConnected() {
+            val browser = audioServiceBrowser ?: return
+            try {
+                val controller = MediaControllerCompat(this@KryzAutoMediaBrowserService, browser.sessionToken)
+                audioServiceController?.unregisterCallback(mediaControllerCallback)
+                audioServiceController = controller
+                controller.registerCallback(mediaControllerCallback)
+                applyPlaybackStateFromFlutter(controller.playbackState)
+                applyNowPlayingMetadataFromFlutter(controller.metadata)
+                consumePendingTransportCommands()
+                Log.d(TAG, "Connected to Flutter audio_service session")
+            } catch (error: Exception) {
+                Log.e(TAG, "Unable to bind media controller: ${error.message}")
+            }
+        }
+
+        override fun onConnectionSuspended() {
+            Log.w(TAG, "audio_service browser connection suspended")
+            handleControllerDisconnected()
+            scheduleBrowserReconnect()
+        }
+
+        override fun onConnectionFailed() {
+            Log.e(TAG, "audio_service browser connection failed")
+            handleControllerDisconnected()
+            scheduleBrowserReconnect()
+        }
+    }
+
+    private val mediaSessionCallback = object : MediaSessionCompat.Callback() {
+        override fun onPlay() {
+            Log.d(TAG, "onPlay()")
+            triggerPlay()
+        }
+
+        override fun onStop() {
+            Log.d(TAG, "onStop()")
+            dispatchStopCommand()
+        }
+
+        override fun onPlayFromMediaId(mediaId: String?, extras: Bundle?) {
+            Log.d(TAG, "onPlayFromMediaId: $mediaId")
+            if (mediaId == MEDIA_ID_LIVE) triggerPlay()
+        }
+
+        override fun onPlayFromSearch(query: String?, extras: Bundle?) {
+            Log.d(TAG, "onPlayFromSearch: $query")
+            triggerPlay()
+        }
+    }
+
+    private fun triggerPlay() {
+        dispatchPlayCommand()
+    }
+
+    /**
+     * Build an android.resource Uri for the Auto album-art drawable.
+     * Uses R.drawable.kryz_auto_art so the resource shrinker sees the reference
+     * and keeps the image in release APKs.
+     */
+    private fun getAutoArtUri(): Uri {
+        return Uri.Builder()
+            .scheme("android.resource")
+            .authority(packageName)
+            .appendPath(resources.getResourceTypeName(R.drawable.kryz_auto_art))
+            .appendPath(resources.getResourceEntryName(R.drawable.kryz_auto_art))
+            .build()
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        Log.d(TAG, "onCreate()")
+        createNotificationChannel()
+
+        mediaSession = MediaSessionCompat(this, TAG).apply {
+            setCallback(mediaSessionCallback)
+            @Suppress("DEPRECATION")
+            setFlags(
+                MediaSessionCompat.FLAG_HANDLES_MEDIA_BUTTONS or
+                    MediaSessionCompat.FLAG_HANDLES_TRANSPORT_CONTROLS
+            )
+            setPlaybackState(
+                PlaybackStateCompat.Builder()
+                    .setActions(
+                        PlaybackStateCompat.ACTION_PLAY or
+                            PlaybackStateCompat.ACTION_STOP or
+                            PlaybackStateCompat.ACTION_PLAY_FROM_MEDIA_ID or
+                            PlaybackStateCompat.ACTION_PLAY_FROM_SEARCH
+                    )
+                    .setState(PlaybackStateCompat.STATE_STOPPED, 0, 1f)
+                    .build()
+            )
+            setMetadata(buildLiveStreamMetadata())
+            isActive = true
+        }
+        sessionToken = mediaSession.sessionToken
+        Log.d(TAG, "MediaSession created, sessionToken set")
+        connectToFlutterAudioService()
+    }
+
+    override fun onGetRoot(
+        clientPackageName: String,
+        clientUid: Int,
+        rootHints: Bundle?
+    ): BrowserRoot {
+        Log.d(TAG, "onGetRoot() from $clientPackageName")
+        return BrowserRoot(MEDIA_ID_ROOT, null)
+    }
+
+    override fun onLoadChildren(
+        parentId: String,
+        result: Result<List<MediaItem>>
+    ) {
+        Log.d(TAG, "onLoadChildren($parentId)")
+        if (parentId == MEDIA_ID_ROOT) {
+            val iconUri = getAutoArtUri()
+            val description = MediaDescriptionCompat.Builder()
+                .setMediaId(MEDIA_ID_LIVE)
+                .setTitle("KMTN Live Stream")
+                .setSubtitle("KMountain Radio")
+                .setIconUri(iconUri)
+                .setMediaUri(Uri.parse(STREAM_URL))
+                .build()
+            result.sendResult(listOf(MediaItem(description, MediaItem.FLAG_PLAYABLE)))
+        } else {
+            result.sendResult(emptyList())
+        }
+    }
+
+    override fun onDestroy() {
+        Log.d(TAG, "onDestroy()")
+        stopFlutterPlaybackForHeadUnitDisconnect()
+        disconnectFromFlutterAudioService()
+        if (::mediaSession.isInitialized) mediaSession.release()
+        super.onDestroy()
+    }
+
+    override fun onTaskRemoved(rootIntent: Intent?) {
+        Log.d(TAG, "onTaskRemoved()")
+        stopFlutterPlaybackForHeadUnitDisconnect()
+        super.onTaskRemoved(rootIntent)
+    }
+
+    override fun onUnbind(intent: Intent?): Boolean {
+        Log.d(TAG, "onUnbind()")
+        stopFlutterPlaybackForHeadUnitDisconnect()
+        return super.onUnbind(intent)
+    }
+
+    private fun stopFlutterPlaybackForHeadUnitDisconnect() {
+        pendingPlayRequest = false
+        pendingStopRequest = false
+
+        try {
+            audioServiceController?.transportControls?.stop()
+        } catch (error: Exception) {
+            Log.w(TAG, "Unable to stop Flutter audio on head unit disconnect: ${error.message}")
+        }
+
+        applyPlaybackState(isPlaying = false, isBuffering = false)
+    }
+
+    private fun applyPlaybackState(isPlaying: Boolean, isBuffering: Boolean) {
+        if (!::mediaSession.isInitialized) return
+        val state = when {
+            isPlaying -> PlaybackStateCompat.STATE_PLAYING
+            isBuffering -> PlaybackStateCompat.STATE_BUFFERING
+            else -> PlaybackStateCompat.STATE_STOPPED
+        }
+        val actions = if (isPlaying || isBuffering) {
+            PlaybackStateCompat.ACTION_STOP
+        } else {
+            PlaybackStateCompat.ACTION_PLAY or
+                PlaybackStateCompat.ACTION_PLAY_FROM_MEDIA_ID or
+                PlaybackStateCompat.ACTION_PLAY_FROM_SEARCH
+        }
+        mediaSession.setPlaybackState(
+            PlaybackStateCompat.Builder()
+                .setActions(actions)
+                .setState(state, PlaybackStateCompat.PLAYBACK_POSITION_UNKNOWN, 1f)
+                .build()
+        )
+        startForeground(NOTIFICATION_ID, buildNotification(isPlaying = isPlaying, isBuffering = isBuffering))
+        Log.d(TAG, "applyPlaybackState: playing=$isPlaying buffering=$isBuffering")
+    }
+
+    private fun dispatchPlayCommand() {
+        val controller = audioServiceController
+        if (controller != null) {
+            pendingPlayRequest = false
+            pendingStopRequest = false
+            applyPlaybackState(isPlaying = false, isBuffering = true)
+            controller.transportControls.play()
+            return
+        }
+
+        pendingStopRequest = false
+        pendingPlayRequest = true
+        applyPlaybackState(isPlaying = false, isBuffering = true)
+        connectToFlutterAudioService()
+    }
+
+    private fun dispatchStopCommand() {
+        val controller = audioServiceController
+        if (controller != null) {
+            pendingPlayRequest = false
+            pendingStopRequest = false
+            controller.transportControls.stop()
+            return
+        }
+
+        pendingPlayRequest = false
+        pendingStopRequest = true
+        applyPlaybackState(isPlaying = false, isBuffering = false)
+        connectToFlutterAudioService()
+    }
+
+    private fun consumePendingTransportCommands() {
+        val controller = audioServiceController ?: return
+
+        if (pendingStopRequest) {
+            pendingStopRequest = false
+            controller.transportControls.stop()
+        }
+
+        if (pendingPlayRequest) {
+            pendingPlayRequest = false
+            controller.transportControls.play()
+        }
+    }
+
+    private fun applyPlaybackStateFromFlutter(state: PlaybackStateCompat?) {
+        if (state == null) {
+            applyPlaybackState(isPlaying = false, isBuffering = false)
+            return
+        }
+
+        val isPlaying = state.state == PlaybackStateCompat.STATE_PLAYING
+        val isBuffering = state.state == PlaybackStateCompat.STATE_BUFFERING ||
+            state.state == PlaybackStateCompat.STATE_CONNECTING
+
+        applyPlaybackState(isPlaying = isPlaying, isBuffering = isBuffering)
+    }
+
+    private fun createNotificationChannel() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val channel = NotificationChannel(
+                NOTIFICATION_CHANNEL_ID,
+                "KMountain Flower Radio Auto Playback",
+                NotificationManager.IMPORTANCE_LOW,
+            ).apply {
+                description = "KMountain Flower Radio Android Auto playback"
+                setShowBadge(false)
+            }
+            val mgr = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+            mgr.createNotificationChannel(channel)
+        }
+    }
+
+    private fun buildNotification(isPlaying: Boolean, isBuffering: Boolean): Notification {
+        val statusText = when {
+            isPlaying -> "Playing from Flutter audio handler"
+            isBuffering -> "Connecting via Flutter audio handler..."
+            else -> "Stopped"
+        }
+        return NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
+            .setContentTitle("KMountain Radio")
+            .setContentText(statusText)
+            .setSmallIcon(R.mipmap.ic_launcher)
+            .setOngoing(isPlaying || isBuffering)
+            .setSilent(true)
+            .build()
+    }
+
+    private fun applyNowPlayingMetadata(
+        title: String?,
+        subtitle: String?,
+        album: String?,
+        mediaUri: String?,
+    ) {
+        if (!::mediaSession.isInitialized) return
+
+        val iconUri = getAutoArtUri()
+        mediaSession.setMetadata(
+            MediaMetadataCompat.Builder()
+                .putString(MediaMetadataCompat.METADATA_KEY_TITLE, title ?: "KMTN Live Stream")
+                .putString(MediaMetadataCompat.METADATA_KEY_ARTIST, subtitle ?: "KMountain Radio")
+                .putString(MediaMetadataCompat.METADATA_KEY_ALBUM, album ?: "Live")
+                .putString(MediaMetadataCompat.METADATA_KEY_MEDIA_ID, MEDIA_ID_LIVE)
+                .putString(MediaMetadataCompat.METADATA_KEY_MEDIA_URI, mediaUri ?: STREAM_URL)
+                .putBitmap(MediaMetadataCompat.METADATA_KEY_ALBUM_ART, albumArtBitmap)
+                .putBitmap(MediaMetadataCompat.METADATA_KEY_DISPLAY_ICON, albumArtBitmap)
+                .build()
+        )
+    }
+
+    private fun applyNowPlayingMetadataFromFlutter(metadata: MediaMetadataCompat?) {
+        if (metadata == null) {
+            applyNowPlayingMetadata(
+                title = "KMTN Live Stream",
+                subtitle = "KMountain Radio",
+                album = "Live",
+                mediaUri = STREAM_URL,
+            )
+            return
+        }
+
+        applyNowPlayingMetadata(
+            title = metadata.getString(MediaMetadataCompat.METADATA_KEY_TITLE),
+            subtitle = metadata.getString(MediaMetadataCompat.METADATA_KEY_ARTIST),
+            album = metadata.getString(MediaMetadataCompat.METADATA_KEY_ALBUM),
+            mediaUri = metadata.getString(MediaMetadataCompat.METADATA_KEY_MEDIA_URI),
+        )
+    }
+
+    private fun connectToFlutterAudioService() {
+        if (audioServiceController != null) {
+            return
+        }
+
+        val existing = audioServiceBrowser
+        if (existing?.isConnected == true) {
+            return
+        }
+
+        if (existing != null) {
+            try {
+                existing.connect()
+            } catch (error: Exception) {
+                Log.w(TAG, "Failed reconnect attempt: ${error.message}")
+            }
+            return
+        }
+
+        val browser = MediaBrowserCompat(
+            this,
+            ComponentName(this, AudioService::class.java),
+            browserConnectionCallback,
+            null,
+        )
+
+        audioServiceBrowser = browser
+        browser.connect()
+    }
+
+    private fun disconnectFromFlutterAudioService() {
+        reconnectScheduled = false
+        mainHandler.removeCallbacksAndMessages(null)
+
+        handleControllerDisconnected()
+
+        audioServiceBrowser?.let { browser ->
+            if (browser.isConnected) {
+                browser.disconnect()
+            }
+        }
+        audioServiceBrowser = null
+    }
+
+    private fun handleControllerDisconnected() {
+        audioServiceController?.unregisterCallback(mediaControllerCallback)
+        audioServiceController = null
+    }
+
+    private fun scheduleBrowserReconnect() {
+        if (reconnectScheduled) {
+            return
+        }
+
+        reconnectScheduled = true
+        mainHandler.postDelayed(
+            {
+                reconnectScheduled = false
+                connectToFlutterAudioService()
+            },
+            1200,
+        )
+    }
+
+    private fun buildLiveStreamMetadata(): MediaMetadataCompat {
+        return MediaMetadataCompat.Builder()
+            .putString(MediaMetadataCompat.METADATA_KEY_TITLE, "KMTN Live Stream")
+            .putString(MediaMetadataCompat.METADATA_KEY_ARTIST, "KMountain Radio")
+            .putString(MediaMetadataCompat.METADATA_KEY_ALBUM, "Live")
+            .putString(MediaMetadataCompat.METADATA_KEY_MEDIA_ID, MEDIA_ID_LIVE)
+            .putString(MediaMetadataCompat.METADATA_KEY_MEDIA_URI, STREAM_URL)
+            .putBitmap(MediaMetadataCompat.METADATA_KEY_ALBUM_ART, albumArtBitmap)
+            .putBitmap(MediaMetadataCompat.METADATA_KEY_DISPLAY_ICON, albumArtBitmap)
+            .build()
+    }
+}
+

android/app/src/main/kotlin/com/example/kryz_go_flutter/MainActivity.kt

@@ -1,5 +1,623 @@
 package com.example.kryz_go_flutter
 
+import android.content.Intent
+import android.os.Handler
+import android.os.Looper
+import androidx.appcompat.view.ContextThemeWrapper
+import androidx.mediarouter.app.MediaRouteChooserDialog
+import androidx.mediarouter.media.MediaRouteSelector
+import com.google.android.gms.cast.CastMediaControlIntent
+import com.google.android.gms.cast.MediaInfo
+import com.google.android.gms.cast.MediaLoadRequestData
+import com.google.android.gms.cast.MediaMetadata
+import com.google.android.gms.cast.MediaStatus
+import com.google.android.gms.cast.framework.CastContext
+import com.google.android.gms.cast.framework.CastSession
+import com.google.android.gms.cast.framework.SessionManagerListener
+import com.google.android.gms.cast.framework.media.RemoteMediaClient
+import com.google.android.gms.common.api.CommonStatusCodes
 import com.ryanheise.audioservice.AudioServiceActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.EventChannel
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import org.json.JSONObject
 
-class MainActivity : AudioServiceActivity()
+class MainActivity : AudioServiceActivity(), MethodChannel.MethodCallHandler, EventChannel.StreamHandler {
+	companion object {
+		private const val METHOD_CHANNEL = "kryz_go_flutter/casting/methods"
+		private const val EVENT_CHANNEL = "kryz_go_flutter/casting/events"
+		private const val MAX_PENDING_CAST_AUTOPLAY_RETRIES = 5
+		private const val REMOTE_STATUS_POLL_INTERVAL_MS = 500L
+	}
+
+	private data class PendingCastRequest(
+		val streamUrl: String,
+		val title: String,
+		val subtitle: String,
+	)
+
+	private var castContext: CastContext? = null
+	private var methodChannel: MethodChannel? = null
+	private var eventSink: EventChannel.EventSink? = null
+	private var chooserDialog: MediaRouteChooserDialog? = null
+	private val mainHandler = Handler(Looper.getMainLooper())
+    private var activeRemoteMediaClient: RemoteMediaClient? = null
+	private var pendingCastRequest: PendingCastRequest? = null
+	private var pendingCastRequestInFlight: Boolean = false
+	private var pendingCastAutoplayRetryCount: Int = 0
+	private var remoteCastStatusPollingRunnable: Runnable? = null
+
+	private var statusPayload: MutableMap<String, Any?> = mutableMapOf(
+		"status" to "idle",
+		"playbackStatus" to "stopped",
+		"platform" to "android",
+	)
+
+	private val remoteMediaClientCallback = object : RemoteMediaClient.Callback() {
+		override fun onStatusUpdated() {
+			emitRemotePlaybackStatus()
+		}
+
+		override fun onMetadataUpdated() {
+			emitRemotePlaybackStatus()
+		}
+	}
+
+	private val castSessionManagerListener = object : SessionManagerListener<CastSession> {
+		override fun onSessionStarting(session: CastSession) {
+			emitStatus("connecting")
+		}
+
+		override fun onSessionStarted(session: CastSession, sessionId: String) {
+			attachRemoteClientCallback(session)
+			startRemoteStatusPolling()
+			emitStatus("connected", session.castDevice?.friendlyName)
+			startPendingCastRequest(session)
+		}
+
+		override fun onSessionStartFailed(session: CastSession, error: Int) {
+			clearPendingCastRequest()
+			emitStatus("error", message = "Cast session failed to start ($error)")
+		}
+
+		override fun onSessionEnding(session: CastSession) {
+			detachRemoteClientCallback()
+			// The Cast framework reports the final state in onSessionEnded.
+		}
+
+		override fun onSessionEnded(session: CastSession, error: Int) {
+			stopRemoteStatusPolling()
+			clearPendingCastRequest()
+			// If app was launched from Android Auto, restart audio service on cast disconnect
+			restartAudioServiceSession()
+			emitStatus("idle")
+		}
+
+		override fun onSessionResuming(session: CastSession, sessionId: String) {
+			emitStatus("connecting")
+		}
+
+		override fun onSessionResumed(session: CastSession, wasSuspended: Boolean) {
+			attachRemoteClientCallback(session)
+			startRemoteStatusPolling()
+			emitStatus("connected", session.castDevice?.friendlyName)
+			startPendingCastRequest(session)
+		}
+
+		override fun onSessionResumeFailed(session: CastSession, error: Int) {
+			clearPendingCastRequest()
+			emitStatus("error", message = "Cast session failed to resume ($error)")
+		}
+
+		override fun onSessionSuspended(session: CastSession, reason: Int) {
+			stopRemoteStatusPolling()
+			detachRemoteClientCallback()
+			emitStatus("idle")
+		}
+	}
+
+	override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+		super.configureFlutterEngine(flutterEngine)
+
+		methodChannel = MethodChannel(flutterEngine.dartExecutor.binaryMessenger, METHOD_CHANNEL)
+			.apply { setMethodCallHandler(this@MainActivity) }
+
+		EventChannel(flutterEngine.dartExecutor.binaryMessenger, EVENT_CHANNEL)
+			.setStreamHandler(this)
+
+		initializeCastContext()
+	}
+
+	override fun onNewIntent(intent: Intent) {
+		super.onNewIntent(intent)
+		setIntent(intent)
+	}
+
+	override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
+		when (call.method) {
+			"getStatus" -> result.success(statusPayload)
+			"showDevicePicker" -> {
+				showDevicePicker(call)
+				result.success(null)
+			}
+			"startCastingLiveStream" -> {
+				startCastingLiveStream(call, result)
+			}
+			"disconnect" -> {
+				clearPendingCastRequest()
+				castContext?.sessionManager?.endCurrentSession(true)
+				emitStatus("idle")
+				result.success(null)
+			}
+			"stopCastingPlayback" -> {
+				stopCastingPlayback(result)
+			}
+			else -> result.notImplemented()
+		}
+	}
+
+	override fun onListen(arguments: Any?, events: EventChannel.EventSink) {
+		eventSink = events
+		events.success(statusPayload)
+	}
+
+	override fun onCancel(arguments: Any?) {
+		eventSink = null
+	}
+
+	override fun onDestroy() {
+		chooserDialog?.dismiss()
+		chooserDialog = null
+
+		castContext?.sessionManager?.removeSessionManagerListener(
+			castSessionManagerListener,
+			CastSession::class.java,
+		)
+		detachRemoteClientCallback()
+
+		super.onDestroy()
+	}
+
+	private fun initializeCastContext() {
+		try {
+			castContext = CastContext.getSharedInstance(this)
+			castContext?.sessionManager?.addSessionManagerListener(
+				castSessionManagerListener,
+				CastSession::class.java,
+			)
+
+			val currentSession = castContext?.sessionManager?.currentCastSession
+			if (currentSession != null && currentSession.isConnected) {
+				attachRemoteClientCallback(currentSession)
+				emitStatus("connected", currentSession.castDevice?.friendlyName)
+			} else {
+				emitStatus("idle")
+			}
+		} catch (error: Exception) {
+			emitStatus("unavailable", message = error.message ?: "Cast unavailable")
+		}
+	}
+
+	private fun showDevicePicker(call: MethodCall) {
+		if (castContext == null) {
+			clearPendingCastRequest()
+			emitStatus("unavailable", message = "Cast services unavailable")
+			return
+		}
+
+		setPendingCastRequest(parsePendingCastRequest(call.arguments))
+
+		val receiverAppId = getString(R.string.cast_receiver_app_id)
+		val routeSelector = MediaRouteSelector.Builder()
+			.addControlCategory(CastMediaControlIntent.categoryForCast(receiverAppId))
+			.build()
+
+		try {
+			val themedContext = ContextThemeWrapper(this, androidx.appcompat.R.style.Theme_AppCompat_DayNight)
+
+			chooserDialog?.dismiss()
+			chooserDialog = MediaRouteChooserDialog(themedContext)
+			chooserDialog?.routeSelector = routeSelector
+			chooserDialog?.setCanceledOnTouchOutside(true)
+			chooserDialog?.setOnDismissListener {
+				handlePickerDismissed()
+			}
+			chooserDialog?.show()
+
+			emitStatus("connecting")
+		} catch (error: IllegalArgumentException) {
+			emitStatus("error", message = "Unable to open cast picker: ${error.message}")
+		}
+	}
+
+	private fun handlePickerDismissed() {
+		chooserDialog = null
+
+		val currentSession = castContext?.sessionManager?.currentCastSession
+		val currentStatus = statusPayload["status"] as? String
+
+		if (currentSession == null && currentStatus == "connecting") {
+			clearPendingCastRequest()
+			emitStatus("idle")
+		}
+	}
+
+	private fun startCastingLiveStream(call: MethodCall, result: MethodChannel.Result) {
+		val arguments = call.arguments as? Map<*, *>
+		if (arguments == null) {
+			result.error("invalid_arguments", "Missing cast media payload", null)
+			return
+		}
+
+		val streamUrl = arguments["streamUrl"] as? String
+		val title = "KRYZ 98.5 LPFM Mariposa Community Radio"
+		val subtitle = "Live Stream"
+
+		if (streamUrl.isNullOrBlank()) {
+			result.error("invalid_stream_url", "streamUrl is required", null)
+			return
+		}
+
+		val currentSession = castContext?.sessionManager?.currentCastSession
+		if (currentSession == null || !currentSession.isConnected) {
+			result.error("no_cast_session", "Connect to a cast device first", null)
+			return
+		}
+
+		val loadRequestData = buildLoadRequestData(
+			streamUrl = streamUrl,
+			title = title,
+			subtitle = subtitle,
+		)
+
+		loadMediaWithRetry(
+			session = currentSession,
+			loadRequestData = loadRequestData,
+			attempt = 1,
+			result = result,
+		)
+	}
+
+	private fun setPendingCastRequest(request: PendingCastRequest?) {
+		pendingCastRequest = request
+		pendingCastRequestInFlight = false
+		pendingCastAutoplayRetryCount = 0
+	}
+
+	private fun clearPendingCastRequest() {
+		setPendingCastRequest(null)
+	}
+
+	private fun parsePendingCastRequest(arguments: Any?): PendingCastRequest? {
+		val map = arguments as? Map<*, *> ?: return null
+		val shouldAutoplay = map["autoplay"] as? Boolean ?: false
+		if (!shouldAutoplay) {
+			return null
+		}
+
+		val streamUrl = map["streamUrl"] as? String
+		if (streamUrl.isNullOrBlank()) {
+			return null
+		}
+
+		return PendingCastRequest(
+			streamUrl = streamUrl,
+			title = map["title"] as? String ?: "Live Stream",
+			subtitle = map["subtitle"] as? String ?: "",
+		)
+	}
+
+	private fun startPendingCastRequest(session: CastSession) {
+		val request = pendingCastRequest ?: return
+		if (pendingCastRequestInFlight) {
+			return
+		}
+		pendingCastRequestInFlight = true
+
+		loadMediaWithRetry(
+			session = session,
+			loadRequestData = buildLoadRequestData(
+				streamUrl = request.streamUrl,
+				title = request.title,
+				subtitle = request.subtitle,
+			),
+			attempt = 1,
+			result = object : MethodChannel.Result {
+				override fun success(result: Any?) {
+					clearPendingCastRequest()
+				}
+
+				override fun error(errorCode: String, errorMessage: String?, errorDetails: Any?) {
+					pendingCastRequestInFlight = false
+					schedulePendingCastRequestRetry(errorMessage ?: errorCode)
+				}
+
+				override fun notImplemented() {}
+			},
+		)
+	}
+
+	private fun schedulePendingCastRequestRetry(message: String) {
+		val request = pendingCastRequest
+		val currentSession = castContext?.sessionManager?.currentCastSession
+		if (request == null || currentSession == null || !currentSession.isConnected) {
+			clearPendingCastRequest()
+			emitStatus("error", message = message)
+			return
+		}
+
+		if (pendingCastAutoplayRetryCount >= MAX_PENDING_CAST_AUTOPLAY_RETRIES) {
+			clearPendingCastRequest()
+			emitStatus("error", message = message)
+			return
+		}
+
+		pendingCastAutoplayRetryCount += 1
+		mainHandler.postDelayed(
+			{
+				val resumedSession = castContext?.sessionManager?.currentCastSession
+				if (resumedSession != null && resumedSession.isConnected) {
+					startPendingCastRequest(resumedSession)
+				} else {
+					clearPendingCastRequest()
+				}
+			},
+			1000,
+		)
+	}
+
+	private fun buildLoadRequestData(
+		streamUrl: String,
+		title: String,
+		subtitle: String,
+	): MediaLoadRequestData {
+		val metadata = MediaMetadata(MediaMetadata.MEDIA_TYPE_MUSIC_TRACK).apply {
+			putString(MediaMetadata.KEY_TITLE, title)
+			putString(MediaMetadata.KEY_SUBTITLE, subtitle)
+		}
+
+		val mediaInfo = MediaInfo.Builder(streamUrl)
+			.setStreamType(MediaInfo.STREAM_TYPE_LIVE)
+			.setContentType("audio/mpeg")
+			.setMetadata(metadata)
+			.build()
+
+		return MediaLoadRequestData.Builder()
+			.setMediaInfo(mediaInfo)
+			.setAutoplay(true)
+			.build()
+	}
+
+	private fun loadMediaWithRetry(
+		session: CastSession,
+		loadRequestData: MediaLoadRequestData,
+		attempt: Int,
+		result: MethodChannel.Result,
+	) {
+		val remoteMediaClient = session.remoteMediaClient
+		if (remoteMediaClient == null) {
+			if (attempt >= 8) {
+				val message = "Cast client not ready after session connection"
+				emitStatus("error", message = message)
+				result.error("no_remote_media_client", message, null)
+				return
+			}
+
+			emitStatus("connecting", session.castDevice?.friendlyName, playbackStatus = "buffering")
+			mainHandler.postDelayed(
+				{
+					loadMediaWithRetry(
+						session = session,
+						loadRequestData = loadRequestData,
+						attempt = attempt + 1,
+						result = result,
+					)
+				},
+				350,
+			)
+			return
+		}
+
+		try {
+			remoteMediaClient.load(loadRequestData).setResultCallback { mediaChannelResult ->
+				if (mediaChannelResult.status.isSuccess) {
+					// Stop local playback immediately when remote load succeeds
+					// This MUST be done in Kotlin (not Flutter) because the audio service
+					// session may be active from Android Auto and won't respond to Flutter calls
+					stopAudioServiceSession()
+					
+					emitStatus("connected", session.castDevice?.friendlyName)
+					// Force initial remote status update and continue polling
+					emitRemotePlaybackStatus()
+					result.success(null)
+					return@setResultCallback
+				}
+
+				val statusCode = mediaChannelResult.status.statusCode
+				val statusText = CommonStatusCodes.getStatusCodeString(statusCode)
+				val message = "Cast load failed: $statusText ($statusCode)"
+				emitStatus("error", message = message)
+				result.error("cast_load_failed", message, null)
+			}
+		} catch (error: Exception) {
+			result.error("cast_load_failed", error.message, JSONObject.NULL)
+		}
+	}
+
+	private fun stopCastingPlayback(result: MethodChannel.Result) {
+		val session = castContext?.sessionManager?.currentCastSession
+		if (session == null || !session.isConnected) {
+			result.error("no_cast_session", "Connect to a cast device first", null)
+			return
+		}
+
+		val remoteMediaClient = session.remoteMediaClient
+		if (remoteMediaClient == null) {
+			result.error("no_remote_media_client", "Unable to control cast media", null)
+			return
+		}
+
+		try {
+			remoteMediaClient.stop().setResultCallback { stopResult ->
+				if (stopResult.status.isSuccess) {
+					emitStatus("connected", session.castDevice?.friendlyName, playbackStatus = "stopped")
+					result.success(null)
+					return@setResultCallback
+				}
+
+				val code = stopResult.status.statusCode
+				val statusText = CommonStatusCodes.getStatusCodeString(code)
+				result.error("cast_stop_failed", "Cast stop failed: $statusText ($code)", null)
+			}
+		} catch (error: Exception) {
+			result.error("cast_stop_failed", error.message, null)
+		}
+	}
+
+	private fun attachRemoteClientCallback(session: CastSession) {
+		val remoteMediaClient = session.remoteMediaClient
+		if (remoteMediaClient == null) {
+			detachRemoteClientCallback()
+			return
+		}
+
+		if (activeRemoteMediaClient === remoteMediaClient) {
+			emitRemotePlaybackStatus()
+			return
+		}
+
+		detachRemoteClientCallback()
+		activeRemoteMediaClient = remoteMediaClient
+		remoteMediaClient.registerCallback(remoteMediaClientCallback)
+		startRemoteStatusPolling()
+		if (pendingCastRequest != null) {
+			startPendingCastRequest(session)
+		}
+		emitRemotePlaybackStatus()
+	}
+
+	private fun detachRemoteClientCallback() {
+		stopRemoteStatusPolling()
+		activeRemoteMediaClient?.unregisterCallback(remoteMediaClientCallback)
+		activeRemoteMediaClient = null
+	}
+
+	private fun startRemoteStatusPolling() {
+		if (remoteCastStatusPollingRunnable != null) {
+			return
+		}
+
+		val pollRunnable = object : Runnable {
+			override fun run() {
+				try {
+					if (activeRemoteMediaClient != null) {
+						emitRemotePlaybackStatus()
+						// Use mainHandler to keep polling alive across lifecycle changes
+						mainHandler.postDelayed(this, REMOTE_STATUS_POLL_INTERVAL_MS)
+					}
+				} catch (e: Exception) {
+					// Safely handle any errors to keep polling thread alive
+					e.printStackTrace()
+				}
+			}
+		}
+
+		remoteCastStatusPollingRunnable = pollRunnable
+		mainHandler.post(pollRunnable)
+	}
+
+	private fun stopRemoteStatusPolling() {
+		val runnable = remoteCastStatusPollingRunnable ?: return
+		mainHandler.removeCallbacks(runnable)
+		remoteCastStatusPollingRunnable = null
+	}
+
+	private fun emitRemotePlaybackStatus() {
+		val remoteMediaClient = activeRemoteMediaClient
+		if (remoteMediaClient == null) return
+		
+		val mediaStatus = remoteMediaClient.mediaStatus
+		val playbackStatus = when (mediaStatus?.playerState) {
+			MediaStatus.PLAYER_STATE_PLAYING -> "playing"
+			MediaStatus.PLAYER_STATE_BUFFERING,
+			MediaStatus.PLAYER_STATE_LOADING -> "buffering"
+			MediaStatus.PLAYER_STATE_PAUSED -> "stopped"
+			MediaStatus.PLAYER_STATE_IDLE,
+			MediaStatus.PLAYER_STATE_UNKNOWN,
+			null -> "stopped"
+			else -> "stopped"
+		}
+
+		val currentSession = castContext?.sessionManager?.currentCastSession
+		if (currentSession != null && currentSession.isConnected) {
+			emitStatus("connected", currentSession.castDevice?.friendlyName, playbackStatus = playbackStatus)
+		}
+	}
+
+	private fun stopLocalAudioPlayback() {
+		try {
+			// Tell Flutter side to stop local audio via method channel
+			// This prevents audio from playing on both mobile and cast device
+			methodChannel?.invokeMethod("stopLocalAudio", null)
+		} catch (e: Exception) {
+			// Silently handle if Flutter side doesn't implement this method
+			e.printStackTrace()
+		}
+	}
+
+	private fun stopAudioServiceSession() {
+		try {
+			// Stop the audio service session directly (works even if app is in background via Android Auto)
+			// This ensures the shared audio handler doesn't keep playing when cast device takes over
+			// Access the audio service through the session token if available
+			methodChannel?.invokeMethod("stopAudioService", null)
+		} catch (e: Exception) {
+			// Audio service might not be available, silently continue
+			e.printStackTrace()
+		}
+	}
+
+	private fun restartAudioServiceSession() {
+		try {
+			// When cast session ends, allow the audio service to resume management
+			// This re-enables local playback for the Flutter side
+			methodChannel?.invokeMethod("resumeLocalAudio", null)
+		} catch (e: Exception) {
+			// If Flutter handler isn't ready, that's ok - audio service will be managed externally
+			e.printStackTrace()
+		}
+	}
+
+	private fun emitStatus(
+		status: String,
+		deviceName: String? = null,
+		message: String? = null,
+		playbackStatus: String? = null,
+	) {
+		val resolvedPlaybackStatus = playbackStatus
+			?: statusPayload["playbackStatus"] as? String
+			?: "stopped"
+
+		if (status == "idle" || status == "unavailable") {
+			statusPayload["playbackStatus"] = "stopped"
+		}
+
+		val payload = mutableMapOf<String, Any?>(
+			"status" to status,
+			"playbackStatus" to if (status == "idle" || status == "unavailable") "stopped" else resolvedPlaybackStatus,
+			"platform" to "android",
+		)
+
+		if (!deviceName.isNullOrBlank()) {
+			payload["deviceName"] = deviceName
+		}
+
+		if (!message.isNullOrBlank()) {
+			payload["message"] = message
+		}
+
+		statusPayload = payload
+		eventSink?.success(payload)
+	}
+}

android/app/src/main/res/values-night/styles.xml

@@ -12,7 +12,8 @@
          running.
 
          This Theme is only used starting with V2 of Flutter's Android embedding. -->
-    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+    <style name="NormalTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
-        <item name="android:windowBackground">?android:colorBackground</item>
+        <item name="android:windowBackground">@android:color/black</item>
+        <item name="android:windowIsTranslucent">false</item>
     </style>
 </resources>

android/app/src/main/res/values/automotive_colors.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Brand colors exposed to Android Auto. Android Auto's media UI reads colorPrimary
+  from the app theme to accent its browsing and now-playing screens.
+  #E36A18 matches AppThemeBusinessObject.lightColors.primarySeed (brand orange).
+-->
+<resources>
+    <color name="kryz_primary">#1a3a5c</color>
+    <color name="kryz_primary_dark">#0e2440</color>
+    <color name="kryz_accent">#e87a2e</color>
+</resources>

android/app/src/main/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="cast_receiver_app_id">CC1AD845</string>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -12,7 +12,18 @@
          running.
 
          This Theme is only used starting with V2 of Flutter's Android embedding. -->
-    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+    <style name="NormalTheme" parent="Theme.AppCompat.Light.NoActionBar">
-        <item name="android:windowBackground">?android:colorBackground</item>
+        <item name="android:windowBackground">@android:color/white</item>
+        <item name="android:windowIsTranslucent">false</item>
+    </style>
+
+    <!--
+      Theme used by KryzAutoMediaBrowserService. Android Auto reads colorPrimary
+      from the service's theme to accent its media browsing UI with the KRYZ brand orange.
+    -->
+    <style name="KryzAutoTheme" parent="Theme.AppCompat">
+        <item name="colorPrimary">@color/kryz_primary</item>
+        <item name="colorPrimaryDark">@color/kryz_primary_dark</item>
+        <item name="colorAccent">@color/kryz_accent</item>
     </style>
 </resources>

android/app/src/main/res/xml/automotive_app_desc.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<automotiveApp>
+    <uses name="media"/>
+</automotiveApp>

assets/icon/icon_2.svg

@@ -1,171 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   width="1000"
-   height="1000"
-   viewBox="0 0 1000 1000"
-   version="1.1"
-   id="svg7"
-   sodipodi:docname="icon_2.svg"
-   inkscape:version="1.4.3 (fcd0343856, 2026-01-01)"
-   inkscape:export-filename="app_icon.png"
-   inkscape:export-xdpi="96"
-   inkscape:export-ydpi="96"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:svg="http://www.w3.org/2000/svg">
-  <defs
-     id="defs7" />
-  <sodipodi:namedview
-     id="namedview7"
-     pagecolor="#ffffff"
-     bordercolor="#000000"
-     borderopacity="0.25"
-     inkscape:showpageshadow="2"
-     inkscape:pageopacity="0.0"
-     inkscape:pagecheckerboard="0"
-     inkscape:deskcolor="#d1d1d1"
-     inkscape:zoom="0.68550502"
-     inkscape:cx="485.04386"
-     inkscape:cy="511.30187"
-     inkscape:window-width="1920"
-     inkscape:window-height="962"
-     inkscape:window-x="0"
-     inkscape:window-y="0"
-     inkscape:window-maximized="1"
-     inkscape:current-layer="svg7" />
-  <!-- Background -->
-  <rect
-     x="-2"
-     y="-2"
-     width="1002"
-     height="1002"
-     fill="#0b2e59"
-     id="rect1"
-     style="stroke-width:1.77131" />
-  <!-- Accent bands -->
-  <rect
-     x="19.82901"
-     y="426.9852"
-     width="960.34198"
-     height="79.542099"
-     fill="#f58220"
-     opacity="0.9"
-     id="rect2"
-     style="stroke-width:1.54503" />
-  <rect
-     x="19.82901"
-     y="506.52728"
-     width="960.34198"
-     height="39.771049"
-     fill="#ffb347"
-     opacity="0.9"
-     id="rect3"
-     style="stroke-width:1.54503" />
-  <!-- Subtle inner border -->
-  <rect
-     x="21.657974"
-     y="21.657974"
-     width="956.68402"
-     height="956.68408"
-     fill="none"
-     stroke="#f58220"
-     stroke-width="7.31594"
-     id="rect4" />
-  <!-- Letters group -->
-  <g
-     font-family="system-ui, '-apple-system', BlinkMacSystemFont, 'Segoe UI', sans-serif"
-     font-weight="800"
-     text-anchor="middle"
-     dominant-baseline="middle"
-     id="g7"
-     transform="matrix(1.4298147,0,0,1.4298147,-109.59816,77.582873)">
-    <!-- K -->
-    <text
-       x="150"
-       y="190"
-       font-size="160px"
-       fill="#f58220"
-       id="text4">K</text>
-    <!-- R -->
-    <text
-       x="320"
-       y="190"
-       font-size="160px"
-       fill="#ffffff"
-       id="text5">R</text>
-    <!-- Y -->
-    <text
-       x="490"
-       y="190"
-       font-size="160px"
-       fill="#f58220"
-       id="text6">Y</text>
-    <!-- G in a blue block -->
-    <rect
-       x="580"
-       y="80"
-       width="170"
-       height="220"
-       rx="18"
-       ry="18"
-       fill="#123b73"
-       id="rect6" />
-    <text
-       x="665"
-       y="190"
-       font-size="160px"
-       fill="#ffb347"
-       id="text7">Z</text>
-  </g>
-  <!-- Small underline accent under the word -->
-  <rect
-     x="19.82901"
-     y="415.05389"
-     width="960.34204"
-     height="11.931314"
-     fill="#ffb347"
-     opacity="0.85"
-     id="rect7"
-     style="stroke-width:2.08331" />
-  <text
-     xml:space="preserve"
-     style="font-weight:bold;font-size:100.118px;line-height:0;font-family:'Noto Sans Mono CJK KR';-inkscape-font-specification:'Noto Sans Mono CJK KR Bold';letter-spacing:0px;writing-mode:lr-tb;direction:ltr;fill:#ffffff;stroke:#000000;stroke-width:1.65284"
-     x="22.209259"
-     y="501.82516"
-     id="text8"><tspan
-       sodipodi:role="line"
-       id="tspan7"
-       x="22.209259"
-       y="501.82516"
-       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:100.118px;font-family:C059;-inkscape-font-specification:'C059, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-east-asian:normal;stroke:none;stroke-width:1.65284">98.5 LPFM</tspan></text>
-  <text
-     xml:space="preserve"
-     style="font-style:italic;font-variant:normal;font-weight:500;font-stretch:normal;font-size:169.76px;line-height:0.8;font-family:Z003;-inkscape-font-specification:'Z003, Medium Italic';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-east-asian:normal;letter-spacing:0px;writing-mode:lr-tb;direction:ltr;fill:#ffffff;stroke:none;stroke-width:2.80256"
-     x="25.539324"
-     y="669.90143"
-     id="text10"><tspan
-       sodipodi:role="line"
-       id="tspan10"
-       x="25.539324"
-       y="669.90143"
-       style="line-height:0.8;stroke-width:2.80256">Mariposa</tspan><tspan
-       sodipodi:role="line"
-       x="25.539324"
-       y="805.70941"
-       id="tspan11"
-       style="line-height:0.8;stroke-width:2.80256">Community</tspan><tspan
-       sodipodi:role="line"
-       x="25.539324"
-       y="941.5174"
-       style="line-height:0.8;stroke-width:2.80256"
-       id="tspan13">Radio</tspan></text>
-  <text
-     xml:space="preserve"
-     style="font-style:italic;font-variant:normal;font-weight:500;font-stretch:normal;font-size:348.901px;line-height:0.8;font-family:Z003;-inkscape-font-specification:'Z003, Medium Italic';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-east-asian:normal;letter-spacing:0px;writing-mode:lr-tb;direction:ltr;fill:#ffffff;stroke:none;stroke-width:5.76"
-     x="867.28961"
-     y="762.51642"
-     id="text12"><tspan
-       sodipodi:role="line"
-       id="tspan12" /></text>
-</svg>

build_whitelabel.py

@@ -0,0 +1,585 @@
+#!/usr/bin/env python3
+"""
+Whitelabel build script for KRYZ Go Flutter.
+
+Reads theme.json and generates:
+  - lib/generated/app_config.dart  (compile-time constants)
+  - lib/generated/theme_colors.dart  (light + dark AppThemeColors)
+  - assets/icon/app_icon.png  (from embedded logo SVG)
+Patches native platform files (AndroidManifest, Info.plist, automotive_colors.xml, Kotlin).
+Invokes flutter_launcher_icons and flutter_name_manager.
+
+Usage:
+    python3 build_whitelabel.py [--theme theme.json] [--no-tools]
+"""
+
+import argparse
+import base64
+import json
+import math
+import os
+import re
+import subprocess
+import sys
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
+
+
+def hex_to_rgba(hex_color: str, alpha: float = 1.0) -> str:
+    """Convert '#RRGGBB' hex to '0xAARRGGBB' Dart Color format."""
+    hex_color = hex_color.lstrip("#")
+    assert len(hex_color) == 6, f"Expected 6 hex digits, got {len(hex_color)}"
+    r = int(hex_color[0:2], 16)
+    g = int(hex_color[2:4], 16)
+    b = int(hex_color[4:6], 16)
+    a = int(round(alpha * 255))
+    return f"Color(0x{a:02X}{r:02X}{g:02X}{b:02X})"
+
+
+def darken(hex_color: str, factor: float) -> str:
+    """Darken a hex color by multiplying RGB channels by factor (0-1)."""
+    hex_color = hex_color.lstrip("#")
+    r = int(hex_color[0:2], 16)
+    g = int(hex_color[2:4], 16)
+    b = int(hex_color[4:6], 16)
+    r = int(min(r * factor, 255))
+    g = int(min(g * factor, 255))
+    b = int(min(b * factor, 255))
+    return f"Color(0xFF{r:02X}{g:02X}{b:02X})"
+
+
+def dart_escape(value: str) -> str:
+    """Escape a string for use in a Dart const string literal."""
+    return value.replace("\\", "\\\\").replace("'", "\\'").replace("\n", "\\n")
+
+
+def read_theme(path: str) -> dict:
+    with open(path, "r", encoding="utf-8") as f:
+        return json.load(f)
+
+
+# ---------------------------------------------------------------------------
+# Config generation
+# ---------------------------------------------------------------------------
+
+def generate_app_config(theme: dict) -> str:
+    station = theme["station"]
+    streams = theme["streams"]
+
+    name_primary = station.get("name_primary", "")
+    name_secondary = station.get("name_secondary", "")
+    callsign = station.get("callsign", "")
+    tagline = station.get("tagline", "")
+    frequency = station.get("frequency", "")
+    stream_url = streams.get("url", "")
+    metadata_url = streams.get("metadata_url")
+
+    app_name = f"{name_primary} {name_secondary}".strip()
+    default_title = f"{callsign or name_primary} Live Stream"
+    default_artist = f"{name_primary} Radio"
+
+    metadata_url_line = ""
+    if metadata_url:
+        metadata_url_line = f"  static const String metadataUrl = '{dart_escape(metadata_url)}';\n"
+    else:
+        metadata_url_line = "  static const String? metadataUrl = null;\n"
+
+    return f'''// GENERATED FILE — DO NOT EDIT.
+// Run `python3 build_whitelabel.py` to regenerate.
+
+class AppConfig {{
+  static const String callsign = '{dart_escape(callsign)}';
+  static const String appName = '{dart_escape(app_name)}';
+  static const String tagline = '{dart_escape(tagline)}';
+  static const String frequency = '{dart_escape(frequency)}';
+  static const String streamUrl = '{dart_escape(stream_url)}';
+{metadata_url_line.rstrip()}
+  static const String defaultTitle = '{dart_escape(default_title)}';
+  static const String defaultArtist = '{dart_escape(default_artist)}';
+}}
+'''
+
+
+# ---------------------------------------------------------------------------
+# Theme colors generation
+# ---------------------------------------------------------------------------
+
+def generate_theme_colors(theme: dict) -> str:
+    c = theme["colors"]
+
+    # Light mode — mapped to match companion website color usage
+    light_props = [
+        ("headingColor", hex_to_rgba(c["primary"])),
+        ("accentColor", hex_to_rgba(c["accent"])),
+        ("scaffoldGradientStart", hex_to_rgba(c["background"])),
+        ("scaffoldGradientEnd", hex_to_rgba(c["light"])),
+        ("shellSurface", hex_to_rgba(c["white"], 0.97)),
+        ("shellBorder", hex_to_rgba(c["medium"], 0.10)),
+        ("mutedText", hex_to_rgba(c["medium"])),
+        ("textOnDark", hex_to_rgba(c["white"])),
+        ("textOnDarkSecondary", hex_to_rgba(c["light"])),
+        ("controlsGradientStart", hex_to_rgba(c["primary"])),
+        ("controlsGradientEnd", hex_to_rgba(c["primary_light"])),
+        ("controlsShadow", hex_to_rgba(c["black"], 0.14)),
+        ("bodyText", hex_to_rgba(c["text"])),
+        ("cardSurface", hex_to_rgba(c["white"], 0.08)),
+        ("cardBorder", hex_to_rgba(c["white"], 0.12)),
+        ("successColor", hex_to_rgba(c["success"])),
+        ("dangerColor", hex_to_rgba(c["danger"])),
+    ]
+
+    # Dark mode — mapped to match companion website color usage
+    dark_props = [
+        ("headingColor", hex_to_rgba(c["primary_light"])),
+        ("accentColor", hex_to_rgba(c["accent_light"])),
+        ("scaffoldGradientStart", hex_to_rgba(c["black"])),
+        ("scaffoldGradientEnd", darken(c["primary_dark"], 0.30)),
+        ("shellSurface", hex_to_rgba(c["primary_dark"], 0.85)),
+        ("shellBorder", hex_to_rgba(c["medium"], 0.20)),
+        ("mutedText", hex_to_rgba(c["medium"])),
+        ("textOnDark", hex_to_rgba(c["white"])),
+        ("textOnDarkSecondary", hex_to_rgba(c["light"])),
+        ("controlsGradientStart", hex_to_rgba(c["primary_dark"])),
+        ("controlsGradientEnd", hex_to_rgba(c["primary"])),
+        ("controlsShadow", hex_to_rgba(c["black"], 0.27)),
+        ("bodyText", hex_to_rgba(c["light"])),
+        ("cardSurface", hex_to_rgba(c["white"], 0.08)),
+        ("cardBorder", hex_to_rgba(c["white"], 0.12)),
+        ("successColor", hex_to_rgba(c["success"])),
+        ("dangerColor", hex_to_rgba(c["danger"])),
+    ]
+
+    def props_block(props, indent: str = "    ") -> str:
+        lines = []
+        for name, color_expr in props:
+            lines.append(f"{indent}{name}: {color_expr},")
+        return "\n".join(lines)
+
+    return f'''// GENERATED FILE — DO NOT EDIT.
+// Run `python3 build_whitelabel.py` to regenerate.
+
+import 'package:flutter/material.dart';
+
+import '../app_theme_business_object.dart';
+
+class GeneratedThemeColors {{
+  static const AppThemeColors lightColors = AppThemeColors(
+{props_block(light_props)}
+  );
+
+  static const AppThemeColors darkColors = AppThemeColors(
+{props_block(dark_props)}
+  );
+}}
+'''
+
+
+# ---------------------------------------------------------------------------
+# Icon generation
+# ---------------------------------------------------------------------------
+
+def generate_icon(theme: dict, dry_run: bool = False) -> None:
+    """Decode embedded logo (JPEG, PNG, or SVG) and write app_icon.png."""
+    embedded = theme.get("images_embedded", {})
+    logo = embedded.get("logo", {})
+    data_b64 = logo.get("data", "")
+    content_type = logo.get("content_type", "")
+    if not data_b64:
+        print("  [icon] No embedded logo data — skipping icon generation")
+        return
+
+    raw_bytes = base64.b64decode(data_b64)
+    icon_path = os.path.join(PROJECT_ROOT, "assets", "icon", "app_icon.png")
+
+    if dry_run:
+        print(f"  [icon] Would generate PNG from embedded {content_type or 'image'} at assets/icon/app_icon.png")
+        return
+
+    # --- JPEG / PNG: convert to PNG via Pillow, or write as-is ---
+    if content_type in ("image/jpeg", "image/png"):
+        try:
+            from PIL import Image
+            import io
+            img = Image.open(io.BytesIO(raw_bytes)).convert("RGBA")
+            img = img.resize((1024, 1024), Image.LANCZOS)
+            img.save(icon_path, "PNG")
+            print(f"  [icon] Converted {content_type} → PNG (Pillow, 1024×1024)")
+            return
+        except ImportError:
+            pass
+        except Exception as e:
+            print(f"  [icon] Pillow conversion failed: {e} — writing raw bytes")
+
+        # Fallback: write raw bytes directly (flutter_launcher_icons accepts JPEG)
+        if content_type == "image/jpeg":
+            fallback = os.path.join(PROJECT_ROOT, "assets", "icon", "app_icon.jpg")
+        else:
+            fallback = icon_path
+        with open(fallback, "wb") as f:
+            f.write(raw_bytes)
+        print(f"  [icon] Wrote embedded {content_type} (no Pillow — using raw bytes)")
+        # If we wrote a JPEG, rename the pubspec image_path is still .png,
+        # so try to at least rename it
+        if fallback != icon_path:
+            os.replace(fallback, icon_path)
+        return
+
+    # --- SVG: render to PNG via cairosvg or rsvg-convert ---
+    try:
+        import cairosvg
+        cairosvg.svg2png(bytestring=raw_bytes, write_to=icon_path, output_width=1024, output_height=1024)
+        print("  [icon] Rendered SVG → PNG (cairosvg)")
+        return
+    except ImportError:
+        pass
+    except Exception as e:
+        print(f"  [icon] cairosvg failed: {e} — trying rsvg-convert")
+
+    try:
+        import tempfile
+        with tempfile.NamedTemporaryFile(suffix=".svg", delete=False) as tmp:
+            tmp.write(raw_bytes)
+            tmp_path = tmp.name
+        subprocess.run(
+            ["rsvg-convert", "-w", "1024", "-h", "1024", "-o", icon_path, tmp_path],
+            check=True,
+            capture_output=True,
+        )
+        os.unlink(tmp_path)
+        print("  [icon] Rendered SVG → PNG (rsvg-convert)")
+    except Exception as e:
+        print(f"  [icon] WARNING: Could not render icon: {e}")
+        print("  [icon] Install cairosvg (`pip install cairosvg`) or rsvg-convert")
+
+
+def generate_android_auto_art(theme: dict, dry_run: bool = False) -> None:
+    """Decode embedded hero_icon (JPEG, PNG, or SVG) and write kryz_auto_art.png."""
+    embedded = theme["images_embedded"]
+    hero_data = embedded["hero_icon"]["data"]
+    hero_content_type = embedded["hero_icon"].get("content_type", "")
+    print("  [android-auto-art] Using 'hero_icon' from images_embedded")
+
+    raw_bytes = base64.b64decode(hero_data)
+    icon_path = os.path.join(PROJECT_ROOT, "android", "app", "src", "main", "res", "drawable-nodpi", "kryz_auto_art.png")
+
+    if dry_run:
+        print(f"  [android-auto-art] Would generate PNG from embedded {hero_content_type or 'image'} at android/app/src/main/res/drawable-nodpi/kryz_auto_art.png")
+        return
+
+    # --- JPEG / PNG: convert to PNG via Pillow, or write as-is ---
+    if hero_content_type in ("image/jpeg", "image/png"):
+        try:
+            from PIL import Image
+            import io
+            img = Image.open(io.BytesIO(raw_bytes)).convert("RGBA")
+            img = img.resize((1024, 1024), Image.LANCZOS)
+            img.save(icon_path, "PNG")
+            print(f"  [android-auto-art] Converted {hero_content_type} → PNG (Pillow, 1024×1024)")
+            return
+        except ImportError:
+            pass
+        except Exception as e:
+            print(f"  [android-auto-art] Pillow conversion failed: {e} — writing raw bytes")
+
+        # Fallback: write raw bytes directly
+        if hero_content_type == "image/jpeg":
+            fallback = os.path.join(PROJECT_ROOT, "android", "app", "src", "main", "res", "drawable-nodpi", "kryz_auto_art.jpg")
+        else:
+            fallback = icon_path
+        with open(fallback, "wb") as f:
+            f.write(raw_bytes)
+        print(f"  [android-auto-art] Wrote embedded {hero_content_type} (no Pillow — using raw bytes)")
+        if fallback != icon_path:
+            os.replace(fallback, icon_path)
+        return
+
+    # --- SVG: render to PNG via cairosvg or rsvg-convert ---
+    try:
+        import cairosvg
+        cairosvg.svg2png(bytestring=raw_bytes, write_to=icon_path, output_width=1024, output_height=1024)
+        print("  [android-auto-art] Rendered SVG → PNG (cairosvg)")
+        return
+    except ImportError:
+        pass
+    except Exception as e:
+        print(f"  [android-auto-art] cairosvg failed: {e} — trying rsvg-convert")
+
+    try:
+        import tempfile
+        with tempfile.NamedTemporaryFile(suffix=".svg", delete=False) as tmp:
+            tmp.write(raw_bytes)
+            tmp_path = tmp.name
+        subprocess.run(
+            ["rsvg-convert", "-w", "1024", "-h", "1024", "-o", icon_path, tmp_path],
+            check=True,
+            capture_output=True,
+        )
+        os.unlink(tmp_path)
+        print("  [android-auto-art] Rendered SVG → PNG (rsvg-convert)")
+    except Exception as e:
+        print(f"  [android-auto-art] WARNING: Could not render icon: {e}")
+        print("  [android-auto-art] Install cairosvg (`pip install cairosvg`) or rsvg-convert")
+
+
+# ---------------------------------------------------------------------------
+# Native file patching
+# ---------------------------------------------------------------------------
+
+def patch_android_manifest(theme: dict, dry_run: bool = False) -> None:
+    path = os.path.join(PROJECT_ROOT, "android", "app", "src", "main", "AndroidManifest.xml")
+    if not os.path.exists(path):
+        print("  [android] AndroidManifest.xml not found — skipping")
+        return
+
+    station = theme["station"]
+    app_name = f"{station.get('name_primary','')} {station.get('name_secondary','')}".strip()
+
+    with open(path, "r", encoding="utf-8") as f:
+        content = f.read()
+
+    new_content = re.sub(
+        r'android:label="[^"]*"',
+        f'android:label="{app_name}"',
+        content,
+    )
+
+    if dry_run:
+        print(f"  [android] Would patch AndroidManifest.xml label → '{app_name}'")
+        return
+
+    with open(path, "w", encoding="utf-8") as f:
+        f.write(new_content)
+    print(f"  [android] Patched AndroidManifest.xml label → '{app_name}'")
+
+
+def patch_info_plist(theme: dict, dry_run: bool = False) -> None:
+    path = os.path.join(PROJECT_ROOT, "ios", "Runner", "Info.plist")
+    if not os.path.exists(path):
+        print("  [ios] Info.plist not found — skipping")
+        return
+
+    station = theme["station"]
+    app_name = f"{station.get('name_primary','')} {station.get('name_secondary','')}".strip()
+
+    with open(path, "r", encoding="utf-8") as f:
+        content = f.read()
+
+    # Replace CFBundleDisplayName value
+    content = re.sub(
+        r'(<key>CFBundleDisplayName</key>\s*<string>)[^<]*(</string>)',
+        rf'\1{app_name}\2',
+        content,
+    )
+    # Replace CFBundleName value
+    content = re.sub(
+        r'(<key>CFBundleName</key>\s*<string>)[^<]*(</string>)',
+        rf'\1{app_name}\2',
+        content,
+    )
+
+    if dry_run:
+        print(f"  [ios] Would patch Info.plist CFBundleDisplayName/CFBundleName → '{app_name}'")
+        return
+
+    with open(path, "w", encoding="utf-8") as f:
+        f.write(content)
+    print(f"  [ios] Patched Info.plist → '{app_name}'")
+
+
+def patch_automotive_colors(theme: dict, dry_run: bool = False) -> None:
+    path = os.path.join(PROJECT_ROOT, "android", "app", "src", "main", "res", "values", "automotive_colors.xml")
+    if not os.path.exists(path):
+        print("  [android-auto] automotive_colors.xml not found — skipping")
+        return
+
+    c = theme["colors"]
+
+    with open(path, "r", encoding="utf-8") as f:
+        content = f.read()
+
+    # Replace hex values in color tags
+    content = re.sub(
+        r'(<color name="kryz_primary">)#[^<]*</color>',
+        rf'\1{c["primary"]}</color>',
+        content,
+    )
+    content = re.sub(
+        r'(<color name="kryz_primary_dark">)#[^<]*</color>',
+        rf'\1{c["primary_dark"]}</color>',
+        content,
+    )
+    content = re.sub(
+        r'(<color name="kryz_accent">)#[^<]*</color>',
+        rf'\1{c["accent"]}</color>',
+        content,
+    )
+
+    if dry_run:
+        print("  [android-auto] Would patch automotive_colors.xml")
+        return
+
+    with open(path, "w", encoding="utf-8") as f:
+        f.write(content)
+    print("  [android-auto] Patched automotive_colors.xml")
+
+
+def patch_kotlin_service(theme: dict, dry_run: bool = False) -> None:
+    kts = list(
+        os.path.join(PROJECT_ROOT, "android", "app", "src", "main", "kotlin", "com", "example", "kryz_go_flutter", f)
+        for f in os.listdir(
+            os.path.join(PROJECT_ROOT, "android", "app", "src", "main", "kotlin", "com", "example", "kryz_go_flutter")
+        )
+    ) if os.path.isdir(
+        os.path.join(PROJECT_ROOT, "android", "app", "src", "main", "kotlin", "com", "example", "kryz_go_flutter")
+    ) else []
+
+    if not kts:
+        print("  [kotlin] No Kotlin files found — skipping")
+        return
+
+    station = theme["station"]
+    streams = theme["streams"]
+    name_primary = station.get("name_primary", "KRYZ")
+    callsign = station.get("callsign", name_primary)
+    app_name = f"{name_primary} {station.get('name_secondary','')}".strip()
+    default_title = f"{callsign} Live Stream"
+    default_artist = f"{name_primary} Radio"
+    stream_url = streams.get("url", "")
+
+    replacements = [
+        # STREAM_URL constant
+        (r'(private const val STREAM_URL = ")[^"]*(")', rf'\g<1>{stream_url}\2'),
+        # "KRYZ Live Stream" → default title
+        (r'"KRYZ Live Stream"', f'"{default_title}"'),
+        # "KRYZ Radio" → default artist
+        (r'"KRYZ Radio"', f'"{default_artist}"'),
+        # "KRYZ Auto Playback" → app name + " Auto Playback"
+        (r'"KRYZ Auto Playback"', f'"{app_name} Auto Playback"'),
+        # "KRYZ Radio Android Auto playback" → descriptive text
+        (r'"KRYZ Radio Android Auto playback"', f'"{app_name} Android Auto playback"'),
+    ]
+
+    for kfile in kts:
+        if not kfile.endswith(".kt"):
+            continue
+        with open(kfile, "r", encoding="utf-8") as f:
+            content = f.read()
+
+        original = content
+        for pattern, replacement in replacements:
+            content = re.sub(pattern, replacement, content)
+
+        if content == original:
+            continue
+
+        if dry_run:
+            print(f"  [kotlin] Would patch {os.path.basename(kfile)}")
+            return
+
+        with open(kfile, "w", encoding="utf-8") as f:
+            f.write(content)
+        print(f"  [kotlin] Patched {os.path.basename(kfile)}")
+
+
+# ---------------------------------------------------------------------------
+# Main
+# ---------------------------------------------------------------------------
+
+def main():
+    parser = argparse.ArgumentParser(description="Whitelabel build script")
+    parser.add_argument("--theme", default=os.path.join(PROJECT_ROOT, "theme.json"), help="Path to theme.json")
+    parser.add_argument("--dry-run", action="store_true", help="Show what would be done without writing files")
+    parser.add_argument("--no-tools", action="store_true", help="Skip invoking flutter_launcher_icons and flutter_name_manager")
+    args = parser.parse_args()
+
+    theme_path = args.theme
+    if not os.path.exists(theme_path):
+        print(f"Error: theme.json not found at {theme_path}")
+        sys.exit(1)
+
+    print(f"Reading {theme_path} ...")
+    theme = read_theme(theme_path)
+
+    station = theme.get("station", {})
+    if not station.get("name_primary"):
+        print("Error: theme.json is missing station.name_primary")
+        sys.exit(1)
+
+    app_name = f"{station.get('name_primary','')} {station.get('name_secondary','')}".strip()
+    print(f"Whitelabel: {app_name}")
+    print()
+
+    # Generate Dart files
+    gen_dir = os.path.join(PROJECT_ROOT, "lib", "generated")
+    os.makedirs(gen_dir, exist_ok=True)
+
+    app_config_path = os.path.join(gen_dir, "app_config.dart")
+    theme_colors_path = os.path.join(gen_dir, "theme_colors.dart")
+
+    if args.dry_run:
+        print("  [gen] Would generate lib/generated/app_config.dart")
+        print("  [gen] Would generate lib/generated/theme_colors.dart")
+    else:
+        with open(app_config_path, "w", encoding="utf-8") as f:
+            f.write(generate_app_config(theme))
+        print("  [gen] Generated lib/generated/app_config.dart")
+
+        with open(theme_colors_path, "w", encoding="utf-8") as f:
+            f.write(generate_theme_colors(theme))
+        print("  [gen] Generated lib/generated/theme_colors.dart")
+
+    # Generate icon
+    print()
+    generate_icon(theme, dry_run=args.dry_run)
+
+    # Generate Android Auto album art
+    print()
+    generate_android_auto_art(theme, dry_run=args.dry_run)
+
+    # Patch native files
+    print()
+    patch_android_manifest(theme, dry_run=args.dry_run)
+    patch_info_plist(theme, dry_run=args.dry_run)
+    patch_automotive_colors(theme, dry_run=args.dry_run)
+    patch_kotlin_service(theme, dry_run=args.dry_run)
+
+    # Invoke downstream tools
+    if not args.dry_run and not args.no_tools:
+        print()
+        print("Running flutter_launcher_icons ...")
+        try:
+            subprocess.run(
+                ["dart", "run", "flutter_launcher_icons"],
+                cwd=PROJECT_ROOT,
+                check=True,
+            )
+            print("  flutter_launcher_icons succeeded")
+        except subprocess.CalledProcessError as e:
+            print(f"  WARNING: flutter_launcher_icons failed: {e}")
+        except FileNotFoundError:
+            print("  WARNING: 'dart' not found — run `flutter pub get` first")
+
+        print()
+        print("Running flutter_name_manager ...")
+        try:
+            subprocess.run(
+                ["dart", "run", "flutter_name_manager", "--app-name", app_name],
+                cwd=PROJECT_ROOT,
+                check=True,
+            )
+            print("  flutter_name_manager succeeded")
+        except subprocess.CalledProcessError as e:
+            print(f"  WARNING: flutter_name_manager failed: {e}")
+        except FileNotFoundError:
+            print("  WARNING: 'dart' not found — run `flutter pub get` first")
+
+    print()
+    print("Done!")
+
+
+if __name__ == "__main__":
+    main()

ios/Runner.xcodeproj/project.pbxproj

@@ -14,6 +14,7 @@
 		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
 		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
 		7884E8682EC3CC0700C636F2 /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7884E8672EC3CC0400C636F2 /* SceneDelegate.swift */; };
+		A1B2C3D4E5F6A7B8C9D0E1F2 /* CarPlaySceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1B2C3D4E5F6A7B8C9D0E1F1 /* CarPlaySceneDelegate.swift */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
@@ -56,6 +57,8 @@
 		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
 		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7884E8672EC3CC0400C636F2 /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		A1B2C3D4E5F6A7B8C9D0E1F1 /* CarPlaySceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CarPlaySceneDelegate.swift; sourceTree = "<group>"; };
+		A1B2C3D4E5F6A7B8C9D0E1F3 /* Runner.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = Runner.entitlements; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
@@ -158,10 +161,12 @@
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
 				97C147021CF9000F007C117D /* Info.plist */,
+				A1B2C3D4E5F6A7B8C9D0E1F3 /* Runner.entitlements */,
 				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
 				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
 				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
 				7884E8672EC3CC0400C636F2 /* SceneDelegate.swift */,
+				A1B2C3D4E5F6A7B8C9D0E1F1 /* CarPlaySceneDelegate.swift */,
 				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
 			);
 			path = Runner;
@@ -382,6 +387,7 @@
 				74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */,
 				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 				7884E8682EC3CC0700C636F2 /* SceneDelegate.swift in Sources */,
+				A1B2C3D4E5F6A7B8C9D0E1F2 /* CarPlaySceneDelegate.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -473,6 +479,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = SGW7CVBAMN;
 				ENABLE_BITCODE = NO;
@@ -656,6 +663,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = SGW7CVBAMN;
 				ENABLE_BITCODE = NO;
@@ -679,6 +687,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = SGW7CVBAMN;
 				ENABLE_BITCODE = NO;

ios/Runner/AppDelegate.swift

@@ -1,9 +1,21 @@
 import Flutter
 import UIKit
 import AVFoundation
+import AVKit
 
 @main
-@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate, FlutterStreamHandler {
+  private let castingMethodChannelName = "kryz_go_flutter/casting/methods"
+  private let castingEventChannelName = "kryz_go_flutter/casting/events"
+  private let playbackMethodChannelName = "kryz_go_flutter/playback/methods"
+
+  private var castingEventSink: FlutterEventSink?
+  private var castingStatus: [String: Any] = [
+    "status": "idle",
+    "platform": "ios"
+  ]
+  private var playbackMethodChannel: FlutterMethodChannel?
+
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
@@ -17,10 +29,152 @@ import AVFoundation
       NSLog("Failed to configure AVAudioSession: \(error)")
     }
 
+    NotificationCenter.default.addObserver(
+      self,
+      selector: #selector(handleAudioRouteChange),
+      name: AVAudioSession.routeChangeNotification,
+      object: nil
+    )
+
+    updateCastingStatusForCurrentRoute()
+
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 
   func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
     GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+
+    guard let registrar = engineBridge.pluginRegistry.registrar(forPlugin: "CastingBridge") else {
+      return
+    }
+
+    let methodChannel = FlutterMethodChannel(
+      name: castingMethodChannelName,
+      binaryMessenger: registrar.messenger()
+    )
+    let eventChannel = FlutterEventChannel(
+      name: castingEventChannelName,
+      binaryMessenger: registrar.messenger()
+    )
+
+    eventChannel.setStreamHandler(self)
+
+    methodChannel.setMethodCallHandler { [weak self] call, result in
+      self?.handleCastingMethod(call: call, result: result)
+    }
+
+    playbackMethodChannel = FlutterMethodChannel(
+      name: playbackMethodChannelName,
+      binaryMessenger: registrar.messenger()
+    )
+  }
+
+  /// Invoke play on the Flutter audio engine. Called by CarPlaySceneDelegate.
+  func invokePlay() {
+    playbackMethodChannel?.invokeMethod("play", arguments: nil)
+  }
+
+  /// Invoke stop on the Flutter audio engine. Called by CarPlaySceneDelegate.
+  func invokeStop() {
+    playbackMethodChannel?.invokeMethod("stop", arguments: nil)
+  }
+
+  @objc private func handleAudioRouteChange() {
+    updateCastingStatusForCurrentRoute()
+  }
+
+  private func handleCastingMethod(call: FlutterMethodCall, result: @escaping FlutterResult) {
+    switch call.method {
+    case "getStatus":
+      updateCastingStatusForCurrentRoute()
+      result(castingStatus)
+    case "showDevicePicker":
+      showAirPlayPicker()
+      result(nil)
+    case "startCastingLiveStream":
+      // AirPlay route selection controls where iOS outputs audio. No explicit load call needed.
+      result(nil)
+    case "disconnect":
+      // iOS does not expose direct route disconnect. Users select route via picker.
+      showAirPlayPicker()
+      result(nil)
+    default:
+      result(FlutterMethodNotImplemented)
+    }
+  }
+
+  private func showAirPlayPicker() {
+    DispatchQueue.main.async {
+      guard let rootViewController = self.activeRootViewController() else {
+        self.emitCastingEvent(status: "error", message: "Unable to open AirPlay picker")
+        return
+      }
+
+      let routePickerView = AVRoutePickerView(frame: CGRect(x: 0, y: 0, width: 1, height: 1))
+      routePickerView.alpha = 0.01
+      rootViewController.view.addSubview(routePickerView)
+
+      for subview in routePickerView.subviews {
+        if let button = subview as? UIButton {
+          button.sendActions(for: .touchUpInside)
+          break
+        }
+      }
+
+      DispatchQueue.main.asyncAfter(deadline: .now() + 0.25) {
+        routePickerView.removeFromSuperview()
+      }
+    }
+  }
+
+  private func activeRootViewController() -> UIViewController? {
+    let activeScene = UIApplication.shared.connectedScenes
+      .first { $0.activationState == .foregroundActive } as? UIWindowScene
+    let keyWindow = activeScene?.windows.first { $0.isKeyWindow }
+    return keyWindow?.rootViewController
+  }
+
+  private func updateCastingStatusForCurrentRoute() {
+    let currentOutputs = AVAudioSession.sharedInstance().currentRoute.outputs
+    if let airPlayOutput = currentOutputs.first(where: { $0.portType == .airPlay }) {
+      castingStatus = [
+        "status": "connected",
+        "platform": "ios",
+        "deviceName": airPlayOutput.portName
+      ]
+    } else {
+      castingStatus = [
+        "status": "idle",
+        "platform": "ios"
+      ]
+    }
+
+    castingEventSink?(castingStatus)
+  }
+
+  private func emitCastingEvent(status: String, message: String) {
+    let event: [String: Any] = [
+      "status": status,
+      "platform": "ios",
+      "message": message
+    ]
+
+    castingStatus = event
+    castingEventSink?(event)
+  }
+
+  func onListen(withArguments arguments: Any?, eventSink events: @escaping FlutterEventSink) -> FlutterError? {
+    castingEventSink = events
+    events(castingStatus)
+    return nil
+  }
+
+  func onCancel(withArguments arguments: Any?) -> FlutterError? {
+    castingEventSink = nil
+    return nil
+  }
+
+  deinit {
+    NotificationCenter.default.removeObserver(self)
   }
 }

ios/Runner/CarPlaySceneDelegate.swift

@@ -0,0 +1,86 @@
+import CarPlay
+import UIKit
+
+/**
+ * CarPlay scene delegate for KRYZ Go!
+ *
+ * Shows a CPListTemplate with the KRYZ Live Stream item. Tapping it triggers
+ * playback via AppDelegate.invokePlay(), then presents CPNowPlayingTemplate.
+ *
+ * CarPlay enforces its own design system for safety — colors cannot be customised.
+ * The app icon (which carries the KRYZ brand orange) is used as item artwork to
+ * provide visual continuity with the phone app.
+ *
+ * Note: the com.apple.developer.carplay-audio entitlement must be enabled in the
+ * Apple Developer Portal and added to the target in Xcode Signing & Capabilities.
+ */
+@available(iOS 14.0, *)
+class CarPlaySceneDelegate: UIResponder, CPTemplateApplicationSceneDelegate {
+
+  private var carPlayInterfaceController: CPInterfaceController?
+  private var listTemplate: CPListTemplate?
+
+  // MARK: - CPTemplateApplicationSceneDelegate
+
+  func templateApplicationScene(
+    _ templateApplicationScene: CPTemplateApplicationScene,
+    didConnect interfaceController: CPInterfaceController
+  ) {
+    carPlayInterfaceController = interfaceController
+    interfaceController.setRootTemplate(makeListTemplate(), animated: false, completion: nil)
+  }
+
+  func templateApplicationScene(
+    _ templateApplicationScene: CPTemplateApplicationScene,
+    didDisconnectInterfaceController interfaceController: CPInterfaceController
+  ) {
+    carPlayInterfaceController = nil
+    listTemplate = nil
+    appDelegate?.invokeStop()
+  }
+
+  // MARK: - Template construction
+
+  private func makeListTemplate() -> CPListTemplate {
+    let artwork = CPListItem.maximumImageSize
+    let icon = UIImage(named: "AppIcon")?
+      .withRenderingMode(.alwaysOriginal)
+
+    let item = CPListItem(
+      text: "KRYZ Live Stream",
+      detailText: "KRYZ Radio",
+      image: icon
+    )
+    item.handler = { [weak self] _, completion in
+      self?.handleStreamItemTapped()
+      completion()
+    }
+
+    let section = CPListSection(items: [item])
+    let template = CPListTemplate(title: "KRYZ Go!", sections: [section])
+    template.tabTitle = "KRYZ Go!"
+    template.tabImage = icon
+
+    listTemplate = template
+    // Silence unused-variable warning
+    _ = artwork
+    return template
+  }
+
+  // MARK: - Playback
+
+  private func handleStreamItemTapped() {
+    appDelegate?.invokePlay()
+    carPlayInterfaceController?.pushTemplate(
+      CPNowPlayingTemplate.shared,
+      animated: true,
+      completion: nil
+    )
+  }
+
+  // MARK: - Helpers
+
+  private var appDelegate: AppDelegate? {
+    UIApplication.shared.delegate as? AppDelegate
+  }
+}

ios/Runner/Info.plist

@@ -7,7 +7,7 @@
 	<key>CFBundleDevelopmentRegion</key>
 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleDisplayName</key>
-	<string>KRYZ Go!</string>
+	<string>KMountain Flower Radio</string>
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
@@ -15,7 +15,7 @@
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
-	<string>KRYZ Go!</string>
+	<string>KMountain Flower Radio</string>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
@@ -49,6 +49,17 @@
 					<string>Main</string>
 				</dict>
 			</array>
+			<key>CPTemplateApplicationSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>CPTemplateApplicationScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>CarPlay</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).CarPlaySceneDelegate</string>
+				</dict>
+			</array>
 		</dict>
 	</dict>
 	<key>UIApplicationSupportsIndirectInputEvents</key>

ios/Runner/Runner.entitlements

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<!--
+	  CarPlay audio entitlement. This must also be enabled on the Apple Developer Portal
+	  (Certificates, Identifiers & Profiles → your App ID → Capabilities → CarPlay)
+	  and added to the target in Xcode: Signing & Capabilities → + Capability → CarPlay.
+	-->
+	<key>com.apple.developer.carplay-audio</key>
+	<true/>
+</dict>
+</plist>

lib/app_theme_business_object.dart

@@ -1,69 +1,67 @@
 import 'package:flutter/material.dart';
 
+import 'generated/theme_colors.dart';
+
 class AppThemeColors {
   const AppThemeColors({
-    required this.primarySeed,
+    required this.headingColor,
-    required this.secondarySeed,
+    required this.accentColor,
     required this.scaffoldGradientStart,
     required this.scaffoldGradientEnd,
     required this.shellSurface,
     required this.shellBorder,
-    required this.accent,
+    required this.mutedText,
-    required this.webViewBorder,
+    required this.textOnDark,
-    required this.webViewBackground,
+    required this.textOnDarkSecondary,
     required this.controlsGradientStart,
     required this.controlsGradientEnd,
     required this.controlsShadow,
-    required this.statusText,
+    required this.bodyText,
+    required this.cardSurface,
+    required this.cardBorder,
+    required this.successColor,
+    required this.dangerColor,
   });
 
-  final Color primarySeed;
+  /// Website: `primary` → headings (h1–h6)
-  final Color secondarySeed;
+  final Color headingColor;
+  /// Website: `accent` → links & accent highlights
+  final Color accentColor;
+  /// Page background gradient start — website: `background` (cream)
   final Color scaffoldGradientStart;
+  /// Page background gradient end — website: `light`
   final Color scaffoldGradientEnd;
+  /// Top header card surface
   final Color shellSurface;
+  /// Top header card border
   final Color shellBorder;
-  final Color accent;
+  /// Website: `medium` → muted / secondary text
-  final Color webViewBorder;
+  final Color mutedText;
-  final Color webViewBackground;
+  /// Website: `white` → text on dark surfaces
+  final Color textOnDark;
+  /// Website: `light` → secondary text on dark surfaces
+  final Color textOnDarkSecondary;
+  /// Controls bar / card surface gradient start — website: `primary_dark`
   final Color controlsGradientStart;
+  /// Controls bar / card surface gradient end — website: `primary_dark`
   final Color controlsGradientEnd;
+  /// Shadow color for elevated surfaces
   final Color controlsShadow;
-  final Color statusText;
+  /// Website: `text` → body text
+  final Color bodyText;
+  /// Inner card background overlay — derived from `primary_dark` / `primary_light`
+  final Color cardSurface;
+  /// Inner card border — derived from `primary_dark` / `primary_light`
+  final Color cardBorder;
+  /// Website: `success` → live indicator, success states
+  final Color successColor;
+  /// Website: `danger` → error states
+  final Color dangerColor;
 }
 
 class AppThemeBusinessObject {
-  static const AppThemeColors lightColors = AppThemeColors(
+  static const AppThemeColors lightColors = GeneratedThemeColors.lightColors;
-    primarySeed: Color(0xFFE36A18),
+  static const AppThemeColors darkColors = GeneratedThemeColors.darkColors;
-    secondarySeed: Color(0xFF1663C7),
-    scaffoldGradientStart: Color(0xFFFFF3E3),
-    scaffoldGradientEnd: Color(0xFFE6F2FF),
-    shellSurface: Color(0xF7FFFFFF),
-    shellBorder: Color(0x1A1A4D86),
-    accent: Color(0xFF0F5DB6),
-    webViewBorder: Color(0x261A4D86),
-    webViewBackground: Color(0xFFFFFFFF),
-    controlsGradientStart: Color(0xFFFFB465),
-    controlsGradientEnd: Color(0xFF69ADFF),
-    controlsShadow: Color(0x24114B7A),
-    statusText: Color(0xFF13243D),
-  );
-
-  static const AppThemeColors darkColors = AppThemeColors(
-    primarySeed: Color(0xFFFF9D59),
-    secondarySeed: Color(0xFF76B8FF),
-    scaffoldGradientStart: Color(0xFF0F1C30),
-    scaffoldGradientEnd: Color(0xFF31190C),
-    shellSurface: Color(0xD9162438),
-    shellBorder: Color(0x3366AAFF),
-    accent: Color(0xFFFFBC7E),
-    webViewBorder: Color(0x3378B7FF),
-    webViewBackground: Color(0xFF0C1420),
-    controlsGradientStart: Color(0xFF275792),
-    controlsGradientEnd: Color(0xFF9A4F1F),
-    controlsShadow: Color(0x44000000),
-    statusText: Color(0xFFF4F7FF),
-  );
 
   static bool isDarkMode(BuildContext context) {
     return MediaQuery.platformBrightnessOf(context) == Brightness.dark;
@@ -74,17 +72,17 @@ class AppThemeBusinessObject {
   }
 
   static ThemeData lightTheme() {
-    final ColorScheme scheme =
+    final ColorScheme scheme = ColorScheme.light(
-        ColorScheme.fromSeed(
+      brightness: Brightness.light,
-          seedColor: lightColors.primarySeed,
+      primary: lightColors.headingColor,
-          brightness: Brightness.light,
+      onPrimary: lightColors.textOnDark,
-        ).copyWith(
+      secondary: lightColors.accentColor,
-          primary: lightColors.primarySeed,
+      onSecondary: lightColors.textOnDark,
-          secondary: lightColors.secondarySeed,
+      surface: lightColors.shellSurface,
-          tertiary: const Color(0xFF2C85E1),
+      onSurface: lightColors.bodyText,
-          surface: const Color(0xFFFFFBF7),
+      error: lightColors.dangerColor,
-          onSurface: lightColors.statusText,
+      onError: lightColors.textOnDark,
-        );
+    );
 
     return ThemeData(
       useMaterial3: true,
@@ -104,17 +102,17 @@ class AppThemeBusinessObject {
   }
 
   static ThemeData darkTheme() {
-    final ColorScheme scheme =
+    final ColorScheme scheme = ColorScheme.dark(
-        ColorScheme.fromSeed(
+      brightness: Brightness.dark,
-          seedColor: darkColors.primarySeed,
+      primary: darkColors.headingColor,
-          brightness: Brightness.dark,
+      onPrimary: darkColors.textOnDark,
-        ).copyWith(
+      secondary: darkColors.accentColor,
-          primary: darkColors.primarySeed,
+      onSecondary: darkColors.textOnDark,
-          secondary: darkColors.secondarySeed,
+      surface: darkColors.shellSurface,
-          tertiary: const Color(0xFF4E97E8),
+      onSurface: darkColors.bodyText,
-          surface: const Color(0xFF111A27),
+      error: darkColors.dangerColor,
-          onSurface: darkColors.statusText,
+      onError: darkColors.textOnDark,
-        );
+    );
 
     return ThemeData(
       useMaterial3: true,

lib/casting_business_object.dart

@@ -0,0 +1,261 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+
+enum CastingStatus { unavailable, idle, connecting, connected, error }
+
+enum CastingPlaybackStatus { unknown, stopped, buffering, playing }
+
+class CastingBusinessObject extends ChangeNotifier {
+  static const MethodChannel _methodChannel = MethodChannel(
+    'kryz_go_flutter/casting/methods',
+  );
+  static const EventChannel _eventChannel = EventChannel(
+    'kryz_go_flutter/casting/events',
+  );
+
+  StreamSubscription<dynamic>? _eventSubscription;
+  CastingStatus _status = CastingStatus.unavailable;
+  CastingPlaybackStatus _playbackStatus = CastingPlaybackStatus.unknown;
+  String? _connectedDeviceName;
+  String? _lastError;
+  
+  /// Callback for when native side requests local audio to stop
+  VoidCallback? onStopLocalAudioRequested;
+
+  CastingStatus get status => _status;
+  CastingPlaybackStatus get playbackStatus => _playbackStatus;
+  String? get connectedDeviceName => _connectedDeviceName;
+  String? get lastError => _lastError;
+
+  bool get isSupportedOnThisPlatform {
+    if (kIsWeb) {
+      return false;
+    }
+
+    return defaultTargetPlatform == TargetPlatform.iOS ||
+        defaultTargetPlatform == TargetPlatform.android;
+  }
+
+  bool get isConnected => _status == CastingStatus.connected;
+  bool get isPlaying => _playbackStatus == CastingPlaybackStatus.playing;
+  bool get isBuffering => _playbackStatus == CastingPlaybackStatus.buffering;
+  bool get isStopped => _playbackStatus == CastingPlaybackStatus.stopped;
+
+  Future<void> initialize() async {
+    if (!isSupportedOnThisPlatform) {
+      _setStatus(CastingStatus.unavailable);
+      return;
+    }
+
+    _eventSubscription?.cancel();
+    _eventSubscription = _eventChannel.receiveBroadcastStream().listen(
+      _handleEvent,
+      onError: (Object error) {
+        _lastError = error.toString();
+        _setStatus(CastingStatus.error);
+      },
+    );
+
+    // Set up handler for native method calls (e.g., stopLocalAudio)
+    _methodChannel.setMethodCallHandler(_handleMethodCall);
+
+    await refreshStatus();
+  }
+
+  Future<void> refreshStatus() async {
+    if (!isSupportedOnThisPlatform) {
+      _setStatus(CastingStatus.unavailable);
+      return;
+    }
+
+    try {
+      final dynamic status = await _methodChannel.invokeMethod<dynamic>(
+        'getStatus',
+      );
+      _handleEvent(status);
+    } on PlatformException catch (error) {
+      _lastError = error.message ?? error.code;
+      _setStatus(CastingStatus.error);
+    }
+  }
+
+  Future<void> showDevicePicker({
+    bool autoplay = false,
+    String? streamUrl,
+    String? title,
+    String? subtitle,
+  }) async {
+    if (!isSupportedOnThisPlatform) {
+      _setStatus(CastingStatus.unavailable);
+      return;
+    }
+
+    if (defaultTargetPlatform == TargetPlatform.android) {
+      _setStatus(CastingStatus.connecting);
+    }
+
+    try {
+      await _methodChannel.invokeMethod<void>('showDevicePicker', {
+        'autoplay': autoplay,
+        'streamUrl': streamUrl,
+        'title': title,
+        'subtitle': subtitle,
+      });
+    } on PlatformException catch (error) {
+      _lastError = error.message ?? error.code;
+      _setStatus(CastingStatus.error);
+    }
+  }
+
+  Future<void> startCastingLiveStream({
+    required String streamUrl,
+    required String title,
+    required String subtitle,
+  }) async {
+    if (!isSupportedOnThisPlatform) {
+      _setStatus(CastingStatus.unavailable);
+      return;
+    }
+
+    try {
+      await _methodChannel.invokeMethod<void>('startCastingLiveStream', {
+        'streamUrl': streamUrl,
+        'title': title,
+        'subtitle': subtitle,
+      });
+    } on PlatformException catch (error) {
+      _lastError = error.message ?? error.code;
+      // Do NOT set status to error here — native emits its own status events.
+      // Overriding status from Dart corrupts the UI when native considers the
+      // session still connected (e.g. during a retry after a race condition).
+      rethrow;
+    }
+  }
+
+  Future<void> disconnect() async {
+    if (!isSupportedOnThisPlatform) {
+      _setStatus(CastingStatus.unavailable);
+      return;
+    }
+
+    try {
+      await _methodChannel.invokeMethod<void>('disconnect');
+    } on PlatformException catch (error) {
+      _lastError = error.message ?? error.code;
+      _setStatus(CastingStatus.error);
+    }
+  }
+
+  Future<void> stopPlayback() async {
+    if (!isSupportedOnThisPlatform) {
+      _setStatus(CastingStatus.unavailable);
+      return;
+    }
+
+    try {
+      await _methodChannel.invokeMethod<void>('stopCastingPlayback');
+    } on PlatformException catch (error) {
+      _lastError = error.message ?? error.code;
+      _setStatus(CastingStatus.error);
+    }
+  }
+
+  void _handleEvent(dynamic event) {
+    if (event is! Map) {
+      return;
+    }
+
+    final String? status = event['status'] as String?;
+    final String? playbackStatus = event['playbackStatus'] as String?;
+    final String? deviceName = event['deviceName'] as String?;
+    final String? message = event['message'] as String?;
+
+    if (deviceName != null && deviceName.isNotEmpty) {
+      _connectedDeviceName = deviceName;
+    } else if (status != 'connected') {
+      _connectedDeviceName = null;
+    }
+
+    if (message != null && message.isNotEmpty) {
+      _lastError = message;
+    }
+
+    _setPlaybackStatus(_parsePlaybackStatus(playbackStatus));
+
+    switch (status) {
+      case 'idle':
+        _setStatus(CastingStatus.idle);
+        break;
+      case 'connecting':
+        _setStatus(CastingStatus.connecting);
+        break;
+      case 'connected':
+        _setStatus(CastingStatus.connected);
+        break;
+      case 'error':
+        _setStatus(CastingStatus.error);
+        break;
+      case 'unavailable':
+      default:
+        _setStatus(CastingStatus.unavailable);
+        break;
+    }
+  }
+
+  void _setStatus(CastingStatus status) {
+    if (_status == status) {
+      return;
+    }
+
+    _status = status;
+    notifyListeners();
+  }
+
+  CastingPlaybackStatus _parsePlaybackStatus(String? playbackStatus) {
+    switch (playbackStatus) {
+      case 'playing':
+        return CastingPlaybackStatus.playing;
+      case 'buffering':
+        return CastingPlaybackStatus.buffering;
+      case 'stopped':
+        return CastingPlaybackStatus.stopped;
+      default:
+        return CastingPlaybackStatus.unknown;
+    }
+  }
+
+  void _setPlaybackStatus(CastingPlaybackStatus status) {
+    if (_playbackStatus == status) {
+      return;
+    }
+
+    _playbackStatus = status;
+    notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _eventSubscription?.cancel();
+    super.dispose();
+  }
+
+  /// Handles method calls from native code
+  Future<dynamic> _handleMethodCall(MethodCall call) async {
+    switch (call.method) {
+      case 'stopLocalAudio':
+        onStopLocalAudioRequested?.call();
+        return null;
+      case 'stopAudioService':
+        // Stop the audio service directly (called when transferring to cast)
+        onStopLocalAudioRequested?.call();
+        return null;
+      case 'resumeLocalAudio':
+        // Audio service is resuming after cast disconnect; no action needed on Flutter side
+        return null;
+      default:
+        return null;
+    }
+  }
+}

lib/kryz_audio_handler.dart

@@ -0,0 +1,223 @@
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:audio_service/audio_service.dart';
+import 'package:audio_session/audio_session.dart';
+import 'package:http/http.dart' as http;
+import 'package:just_audio/just_audio.dart';
+
+import 'generated/app_config.dart';
+import 'live_info_business_object.dart';
+
+class KryzAudioHandler extends BaseAudioHandler with SeekHandler {
+  KryzAudioHandler() {
+    mediaItem.add(_defaultMediaItem);
+    _playerStateSubscription = _player.playerStateStream.listen(
+      _onPlayerStateChanged,
+    );
+  }
+
+  static const String streamUrl = AppConfig.streamUrl;
+  static const String mediaId = 'kryz-live-stream';
+  static const String _liveInfoEndpoint = AppConfig.metadataUrl ?? '';
+  static const Duration _liveInfoTimeout = Duration(seconds: 8);
+  static const Duration _metadataRefreshInterval = Duration(seconds: 20);
+
+  static const MediaItem _defaultMediaItem = MediaItem(
+    id: mediaId,
+    title: AppConfig.defaultTitle,
+    artist: AppConfig.defaultArtist,
+    album: 'Live',
+    extras: <String, dynamic>{
+      'isLive': true,
+      'seekable': false,
+    },
+  );
+
+  final AudioPlayer _player = AudioPlayer();
+  late final StreamSubscription<PlayerState> _playerStateSubscription;
+  Timer? _metadataRefreshTimer;
+  bool _isAudioSessionConfigured = false;
+  bool _isSourceLoaded = false;
+  bool _playRequested = false;
+
+  Future<void> updateMetadataFromLiveInfo(LiveInfoSnapshot? snapshot) async {
+    final current = snapshot?.current;
+    if (current == null || current.type != 'track') {
+      mediaItem.add(_defaultMediaItem);
+      return;
+    }
+
+    final String subtitle = current.displaySubtitle.trim();
+    mediaItem.add(
+      MediaItem(
+        id: mediaId,
+        title: current.displayTitle,
+        artist: subtitle.isEmpty ? AppConfig.defaultArtist : subtitle,
+        album: 'Live',
+        extras: <String, dynamic>{
+          'isLive': true,
+          'seekable': false,
+          'starts': current.starts,
+          'ends': current.ends,
+          'schedulerTime': snapshot?.schedulerTime,
+        },
+      ),
+    );
+  }
+
+  @override
+  Future<void> play() async {
+    _playRequested = true;
+    playbackState.add(
+      playbackState.value.copyWith(
+        controls: const <MediaControl>[MediaControl.stop],
+        systemActions: const <MediaAction>{},
+        processingState: AudioProcessingState.buffering,
+        playing: false,
+      ),
+    );
+
+    await _configureAudioSessionIfNeeded();
+
+    try {
+      if (!_isSourceLoaded) {
+        await _player.setAudioSource(
+          AudioSource.uri(
+            Uri.parse(streamUrl),
+            tag: mediaItem.value,
+          ),
+        );
+        _isSourceLoaded = true;
+      }
+
+      final session = await AudioSession.instance;
+      await session.setActive(true);
+      await _player.play();
+      await _refreshMetadataFromApi();
+      _startMetadataRefreshTimer();
+    } catch (_) {
+      _playRequested = false;
+      playbackState.add(
+        playbackState.value.copyWith(
+          controls: const <MediaControl>[MediaControl.play],
+          systemActions: const <MediaAction>{},
+          processingState: AudioProcessingState.idle,
+          playing: false,
+        ),
+      );
+      rethrow;
+    }
+  }
+
+  @override
+  Future<void> stop() async {
+    _playRequested = false;
+    _isSourceLoaded = false;
+    _metadataRefreshTimer?.cancel();
+    _metadataRefreshTimer = null;
+    await _player.stop();
+    playbackState.add(
+      playbackState.value.copyWith(
+        controls: const <MediaControl>[MediaControl.play],
+        systemActions: const <MediaAction>{},
+        processingState: AudioProcessingState.idle,
+        playing: false,
+      ),
+    );
+  }
+
+  @override
+  Future<void> seek(Duration position) async {
+    // Live stream is intentionally non-seekable.
+  }
+
+  @override
+  Future<void> playFromMediaId(String mediaId, [Map<String, dynamic>? extras]) {
+    return play();
+  }
+
+  @override
+  Future<void> playFromSearch(String query, [Map<String, dynamic>? extras]) {
+    return play();
+  }
+
+  Future<void> dispose() async {
+    _metadataRefreshTimer?.cancel();
+    await _playerStateSubscription.cancel();
+    await _player.dispose();
+  }
+
+  Future<void> _configureAudioSessionIfNeeded() async {
+    if (_isAudioSessionConfigured) {
+      return;
+    }
+
+    final session = await AudioSession.instance;
+    await session.configure(const AudioSessionConfiguration.music());
+    _isAudioSessionConfigured = true;
+  }
+
+  void _onPlayerStateChanged(PlayerState state) {
+    final AudioProcessingState processingState = switch (state.processingState) {
+      ProcessingState.idle => AudioProcessingState.idle,
+      ProcessingState.loading => AudioProcessingState.loading,
+      ProcessingState.buffering => AudioProcessingState.buffering,
+      ProcessingState.ready => AudioProcessingState.ready,
+      ProcessingState.completed => AudioProcessingState.completed,
+    };
+
+    final bool isPlaying = state.playing && state.processingState == ProcessingState.ready;
+    final bool isBuffering = (state.playing && state.processingState != ProcessingState.ready) ||
+        (_playRequested && !state.playing && state.processingState != ProcessingState.completed);
+
+    playbackState.add(
+      playbackState.value.copyWith(
+        controls: <MediaControl>[
+          if (isPlaying || isBuffering) MediaControl.stop else MediaControl.play,
+        ],
+        systemActions: const <MediaAction>{},
+        processingState: isBuffering ? AudioProcessingState.buffering : processingState,
+        playing: isPlaying,
+      ),
+    );
+
+    if (isPlaying || isBuffering) {
+      _startMetadataRefreshTimer();
+    } else {
+      _metadataRefreshTimer?.cancel();
+      _metadataRefreshTimer = null;
+    }
+  }
+
+  void _startMetadataRefreshTimer() {
+    if (_metadataRefreshTimer != null) {
+      return;
+    }
+
+    _metadataRefreshTimer = Timer.periodic(_metadataRefreshInterval, (_) {
+      _refreshMetadataFromApi();
+    });
+  }
+
+  Future<void> _refreshMetadataFromApi() async {
+    try {
+      final response = await http
+          .get(Uri.parse(_liveInfoEndpoint))
+          .timeout(_liveInfoTimeout);
+      if (response.statusCode < 200 || response.statusCode >= 300) {
+        return;
+      }
+
+      final dynamic decoded = jsonDecode(response.body);
+      if (decoded is! Map<String, dynamic>) {
+        return;
+      }
+
+      final snapshot = LiveInfoSnapshot.fromJson(decoded);
+      await updateMetadataFromLiveInfo(snapshot);
+    } catch (_) {
+      // Keep existing metadata if live-info fetch fails.
+    }
+  }
+}

lib/live_info_business_object.dart

@@ -4,17 +4,31 @@ import 'dart:convert';
 import 'package:flutter/foundation.dart';
 import 'package:http/http.dart' as http;
 
+import 'generated/app_config.dart';
+
 class LiveInfoBusinessObject extends ChangeNotifier {
   LiveInfoBusinessObject({
-    this.endpoint = const String.fromEnvironment(
+    String? endpoint,
-      'KRYZ_LIVE_INFO_URL',
+    int refreshIntervalSeconds = 20,
-      defaultValue: 'http://kryz.airtime.pro/api/live-info',
-    ),
-    int refreshIntervalSeconds = 15,
     this.requestTimeout = const Duration(seconds: 8),
-  }) : _refreshIntervalSeconds = refreshIntervalSeconds;
+  })  : _endpointOverride = endpoint,
+        _refreshIntervalSeconds = refreshIntervalSeconds;
 
-  final String endpoint;
+  /// Explicit endpoint passed at construction, if any.
+  final String? _endpointOverride;
+
+  /// The effective polling endpoint: construction override > env var > AppConfig.
+  String get endpoint {
+    final override = _endpointOverride;
+    if (override != null && override.isNotEmpty) {
+      return override;
+    }
+    const envUrl = String.fromEnvironment('KRYZ_LIVE_INFO_URL', defaultValue: '');
+    if (envUrl.isNotEmpty) {
+      return envUrl;
+    }
+    return AppConfig.metadataUrl ?? '';
+  }
   final Duration requestTimeout;
 
   Timer? _pollTimer;
@@ -34,6 +48,10 @@ class LiveInfoBusinessObject extends ChangeNotifier {
   List<RecentPlayedItem> get recentPlayed => List.unmodifiable(_recentPlayed);
 
   Future<void> start() async {
+    // Skip polling if no endpoint is configured
+    if (endpoint.isEmpty && (AppConfig.metadataUrl ?? '').isEmpty) {
+      return;
+    }
     await refresh();
     _restartTimer();
   }
@@ -350,7 +368,7 @@ String _decodeHtml(String raw) {
   return raw
       .replaceAll('&amp;', '&')
       .replaceAll('&quot;', '"')
-      .replaceAll('&#39;', "'")
+      .replaceAll('&#039;', "'")
       .replaceAll('&lt;', '<')
       .replaceAll('&gt;', '>');
 }

lib/live_info_panel.dart

@@ -1,7 +1,10 @@
 import 'package:flutter/material.dart';
+import 'package:intl/intl.dart';
 
 import 'app_theme_business_object.dart';
 import 'live_info_business_object.dart';
+import 'show_card.dart';
+import 'track_card.dart';
 
 class LiveInfoPanel extends StatelessWidget {
   const LiveInfoPanel({
@@ -55,7 +58,7 @@ class LiveInfoPanel extends StatelessWidget {
               children: [
                 Icon(
                   Icons.graphic_eq_rounded,
-                  color: themeColors.statusText,
+                  color: themeColors.textOnDarkSecondary,
                   size: 20,
                 ),
                 const SizedBox(width: 8),
@@ -64,65 +67,10 @@ class LiveInfoPanel extends StatelessWidget {
                     'Live Studio Feed',
                     style: Theme.of(context).textTheme.titleMedium?.copyWith(
                       fontWeight: FontWeight.w800,
-                      color: themeColors.statusText,
+                      color: themeColors.textOnDark,
                     ),
                   ),
                 ),
-                Container(
-                  padding: const EdgeInsets.symmetric(
-                    horizontal: 10,
-                    vertical: 5,
-                  ),
-                  decoration: BoxDecoration(
-                    borderRadius: BorderRadius.circular(999),
-                    color: Colors.black.withValues(alpha: 0.12),
-                  ),
-                  child: Text(
-                    snapshot?.sourceEnabled ?? 'Unknown Source',
-                    style: Theme.of(context).textTheme.labelSmall?.copyWith(
-                      fontWeight: FontWeight.w700,
-                    ),
-                  ),
-                ),
-                const SizedBox(width: 8),
-                PopupMenuButton<int>(
-                  tooltip: 'Set refresh interval',
-                  initialValue: liveInfo.refreshIntervalSeconds,
-                  onSelected: liveInfo.setRefreshIntervalSeconds,
-                  itemBuilder: (BuildContext context) {
-                    return intervalOptions
-                        .map(
-                          (int seconds) => PopupMenuItem<int>(
-                            value: seconds,
-                            child: Text('$seconds seconds'),
-                          ),
-                        )
-                        .toList(growable: false);
-                  },
-                  child: Container(
-                    padding: const EdgeInsets.symmetric(
-                      horizontal: 10,
-                      vertical: 6,
-                    ),
-                    decoration: BoxDecoration(
-                      borderRadius: BorderRadius.circular(8),
-                      color: Colors.black.withValues(alpha: 0.08),
-                    ),
-                    child: Text(
-                      '${liveInfo.refreshIntervalSeconds}s',
-                      style: Theme.of(context).textTheme.labelMedium?.copyWith(
-                        fontWeight: FontWeight.w700,
-                      ),
-                    ),
-                  ),
-                ),
-                IconButton(
-                  tooltip: 'Refresh now',
-                  onPressed: liveInfo.isLoading
-                      ? null
-                      : () => liveInfo.refresh(),
-                  icon: const Icon(Icons.refresh_rounded),
-                ),
               ],
             ),
             const SizedBox(height: 8),
@@ -143,100 +91,50 @@ class LiveInfoPanel extends StatelessWidget {
               child: Row(
                 children: [
                   Expanded(
-                    child: _TrackCard(
+                    child: TrackCard(
                       label: 'Now Playing',
                       track: current,
-                      titleColor: themeColors.statusText,
+                      titleColor: themeColors.textOnDark,
+                      cardSurface: themeColors.cardSurface,
+                      cardBorder: themeColors.cardBorder,
                     ),
                   ),
                   const SizedBox(width: 8),
                   Expanded(
-                    child: _TrackCard(
+                    child: TrackCard(
                       label: 'Coming Next',
                       track: next,
-                      titleColor: themeColors.statusText,
+                      titleColor: themeColors.textOnDark,
+                      cardSurface: themeColors.cardSurface,
+                      cardBorder: themeColors.cardBorder,
                     ),
                   ),
                 ],
               ),
             ),
             const SizedBox(height: 8),
-            _ShowCard(
+            ShowCard(
               label: 'On Air Show',
               show: currentShow,
-              titleColor: themeColors.statusText,
+              sourceTimezone: snapshot?.timezone,
+              titleColor: themeColors.textOnDarkSecondary,
+              cardSurface: themeColors.cardSurface,
+              cardBorder: themeColors.cardBorder,
             ),
             const SizedBox(height: 6),
-            _ShowCard(
+            ShowCard(
               label: 'Up Next Show',
               show: nextShow,
-              titleColor: themeColors.statusText,
+              sourceTimezone: snapshot?.timezone,
-            ),
+              titleColor: themeColors.textOnDarkSecondary,
-            const SizedBox(height: 10),
+              cardSurface: themeColors.cardSurface,
-            Text(
+              cardBorder: themeColors.cardBorder,
-              'Recently Played (runtime)',
-              style: Theme.of(
-                context,
-              ).textTheme.labelLarge?.copyWith(fontWeight: FontWeight.w700),
-            ),
-            const SizedBox(height: 6),
-            Expanded(
-              child: Container(
-                decoration: BoxDecoration(
-                  color: Colors.black.withValues(alpha: 0.08),
-                  borderRadius: BorderRadius.circular(12),
-                ),
-                child: liveInfo.recentPlayed.isEmpty
-                    ? Center(
-                        child: Text(
-                          liveInfo.isLoading
-                              ? 'Loading recent items...'
-                              : 'No recent tracks captured yet',
-                          style: Theme.of(context).textTheme.bodySmall,
-                        ),
-                      )
-                    : ListView.separated(
-                        itemCount: liveInfo.recentPlayed.length,
-                        separatorBuilder: (BuildContext context, int index) =>
-                            Divider(
-                              height: 1,
-                              color: Colors.black.withValues(alpha: 0.08),
-                            ),
-                        itemBuilder: (BuildContext context, int index) {
-                          final RecentPlayedItem item =
-                              liveInfo.recentPlayed[index];
-                          return ListTile(
-                            dense: true,
-                            contentPadding: const EdgeInsets.symmetric(
-                              horizontal: 12,
-                              vertical: 0,
-                            ),
-                            title: Text(
-                              item.title,
-                              maxLines: 1,
-                              overflow: TextOverflow.ellipsis,
-                              style: Theme.of(context).textTheme.bodyMedium
-                                  ?.copyWith(fontWeight: FontWeight.w600),
-                            ),
-                            subtitle: Text(
-                              item.subtitle.isEmpty
-                                  ? _formatTimeWindow(item.starts, item.ends)
-                                  : '${item.subtitle}  |  ${_formatTimeWindow(item.starts, item.ends)}',
-                              maxLines: 1,
-                              overflow: TextOverflow.ellipsis,
-                              style: Theme.of(context).textTheme.bodySmall,
-                            ),
-                            leading: const Icon(Icons.queue_music_rounded),
-                          );
-                        },
-                      ),
-              ),
             ),
             const SizedBox(height: 6),
             Text(
               liveInfo.lastUpdatedAt == null
                   ? 'Waiting for API response...'
-                  : 'Last update: ${liveInfo.lastUpdatedAt!.toLocal().toString().substring(11, 19)} • ${snapshot?.timezone ?? '--'}',
+                  : 'Last update (Local): ${DateFormat.yMd().format(liveInfo.lastUpdatedAt!.toLocal())} ${DateFormat.jm().format(liveInfo.lastUpdatedAt!.toLocal())}',
               style: Theme.of(context).textTheme.labelSmall,
             ),
           ],
@@ -245,122 +143,3 @@ class LiveInfoPanel extends StatelessWidget {
     );
   }
 }
-
-class _TrackCard extends StatelessWidget {
-  const _TrackCard({
-    required this.label,
-    required this.track,
-    required this.titleColor,
-  });
-
-  final String label;
-  final LiveInfoTrackInfo? track;
-  final Color titleColor;
-
-  @override
-  Widget build(BuildContext context) {
-    final String title = track?.displayTitle ?? 'Unavailable';
-    final String subtitle = (track?.displaySubtitle ?? '').trim();
-    final String window = _formatTimeWindow(track?.starts, track?.ends);
-
-    return Container(
-      padding: const EdgeInsets.all(12),
-      decoration: BoxDecoration(
-        color: Colors.black.withValues(alpha: 0.08),
-        borderRadius: BorderRadius.circular(14),
-        border: Border.all(color: Colors.black.withValues(alpha: 0.12)),
-      ),
-      child: Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: [
-          Text(
-            label,
-            style: Theme.of(context).textTheme.labelMedium?.copyWith(
-              fontWeight: FontWeight.w700,
-              color: titleColor,
-            ),
-          ),
-          const SizedBox(height: 6),
-          Text(
-            title,
-            maxLines: 2,
-            overflow: TextOverflow.ellipsis,
-            style: Theme.of(
-              context,
-            ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w700),
-          ),
-          const SizedBox(height: 3),
-          Text(
-            subtitle.isEmpty ? 'No metadata provided' : subtitle,
-            maxLines: 2,
-            overflow: TextOverflow.ellipsis,
-            style: Theme.of(context).textTheme.bodySmall,
-          ),
-          const Spacer(),
-          Text(
-            window,
-            style: Theme.of(
-              context,
-            ).textTheme.labelMedium?.copyWith(fontWeight: FontWeight.w600),
-          ),
-        ],
-      ),
-    );
-  }
-}
-
-class _ShowCard extends StatelessWidget {
-  const _ShowCard({
-    required this.label,
-    required this.show,
-    required this.titleColor,
-  });
-
-  final String label;
-  final LiveInfoShowInfo? show;
-  final Color titleColor;
-
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
-      decoration: BoxDecoration(
-        borderRadius: BorderRadius.circular(12),
-        color: Colors.black.withValues(alpha: 0.06),
-        border: Border.all(color: Colors.black.withValues(alpha: 0.08)),
-      ),
-      child: Row(
-        children: [
-          Icon(Icons.mic_external_on_rounded, color: titleColor, size: 18),
-          const SizedBox(width: 8),
-          Expanded(
-            child: Text(
-              '$label: ${show?.name ?? 'No scheduled show'}',
-              maxLines: 1,
-              overflow: TextOverflow.ellipsis,
-              style: Theme.of(
-                context,
-              ).textTheme.bodyMedium?.copyWith(fontWeight: FontWeight.w600),
-            ),
-          ),
-          const SizedBox(width: 8),
-          Text(
-            _formatTimeWindow(show?.starts, show?.ends),
-            style: Theme.of(context).textTheme.labelSmall,
-          ),
-        ],
-      ),
-    );
-  }
-}
-
-String _formatTimeWindow(String? starts, String? ends) {
-  String formatOne(String? value) {
-    if (value == null || value.length < 16) {
-      return '--:--';
-    }
-    return value.substring(11, 16);
-  }
-
-  return '${formatOne(starts)} - ${formatOne(ends)}';
-}

lib/main.dart

@@ -1,20 +1,29 @@
-import 'package:flutter/material.dart';
+import 'dart:async';
-import 'package:just_audio_background/just_audio_background.dart';
 
+import 'package:flutter/material.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:timezone/data/latest.dart' as tz;
+import 'generated/app_config.dart';
 import 'app_theme_business_object.dart';
+import 'casting_business_object.dart';
 import 'live_info_business_object.dart';
 import 'live_info_panel.dart';
 import 'streaming_audio_business_object.dart';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
-  await JustAudioBackground.init(
+  tz.initializeTimeZones();
-    androidNotificationChannelId: 'com.kryzgoflutter.audio.channel',
-    androidNotificationChannelName: 'KRYZ Audio Playback',
-    androidNotificationOngoing: true,
-  );
-
   runApp(const MyApp());
+
+  // Keep startup non-blocking so UI can render even if background media
+  // services are initializing after an Android Auto cold start.
+  unawaited(
+    SystemChrome.setPreferredOrientations([
+      DeviceOrientation.portraitUp,
+      DeviceOrientation.portraitDown,
+    ]),
+  );
 }
 
 class MyApp extends StatefulWidget {
@@ -26,9 +35,18 @@ class MyApp extends StatefulWidget {
 
 class _MyAppState extends State<MyApp> {
   final StreamingAudioBusinessObject _audio = StreamingAudioBusinessObject();
+  final CastingBusinessObject _casting = CastingBusinessObject();
+
+  @override
+  void initState() {
+    super.initState();
+    unawaited(_audio.ensureInitialized());
+    _casting.initialize();
+  }
 
   @override
   void dispose() {
+    _casting.dispose();
     _audio.dispose();
     super.dispose();
   }
@@ -36,47 +54,121 @@ class _MyAppState extends State<MyApp> {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      title: 'Split Screen Player',
+      title: AppConfig.appName,
       theme: AppThemeBusinessObject.lightTheme(),
       darkTheme: AppThemeBusinessObject.darkTheme(),
       themeMode: ThemeMode.system,
-      home: MainPage(audio: _audio),
+      home: MainPage(audio: _audio, casting: _casting),
       debugShowCheckedModeBanner: false,
     );
   }
 }
 
 class MainPage extends StatefulWidget {
-  const MainPage({super.key, required this.audio});
+  const MainPage({super.key, required this.audio, required this.casting});
 
   final StreamingAudioBusinessObject audio;
+  final CastingBusinessObject casting;
 
   @override
   State<MainPage> createState() => _MainPageState();
 }
 
-class _MainPageState extends State<MainPage> {
+class _MainPageState extends State<MainPage> with WidgetsBindingObserver {
   StreamingAudioBusinessObject get _audio => widget.audio;
+  CastingBusinessObject get _casting => widget.casting;
   final LiveInfoBusinessObject _liveInfo = LiveInfoBusinessObject();
   static const List<int> _intervalOptions = <int>[5, 10, 15, 30, 60];
+  bool _isStartingCastStream = false;
+  bool _pendingRemotePlay = false;
+
+  bool get _usesExternalCastPlayback =>
+      _casting.isConnected && defaultTargetPlatform == TargetPlatform.android;
+
+  bool get _isIosAirPlay => defaultTargetPlatform == TargetPlatform.iOS;
+
+  bool get _isUsingRemotePlayback => _usesExternalCastPlayback;
+
+  bool get _isPlaybackStopped {
+    if (_isUsingRemotePlayback) {
+      return _casting.isStopped ||
+          _casting.playbackStatus == CastingPlaybackStatus.unknown;
+    }
+
+    return _audio.isStopped;
+  }
+
+  bool get _isPlaybackPlaying {
+    if (_isUsingRemotePlayback) {
+      return _casting.isPlaying;
+    }
+
+    return _audio.isPlaying;
+  }
+
+  bool get _isPlaybackBuffering {
+    if (_isUsingRemotePlayback) {
+      return _casting.isBuffering;
+    }
+
+    return _audio.isBuffering;
+  }
 
   String _playbackStatusLabel() {
-    switch (_audio.playbackStatus) {
+    if (_isPlaybackBuffering) {
-      case StreamingPlaybackStatus.stopped:
+      return 'Buffering...';
-        return 'Stopped';
-      case StreamingPlaybackStatus.buffering:
-        return 'Buffering...';
-      case StreamingPlaybackStatus.playing:
-        return 'Playing';
     }
+
+    if (_isPlaybackPlaying) {
+      return 'Playing';
+    }
+
+    return 'Stopped';
   }
 
+  static const _playbackChannel = MethodChannel(
+    'kryz_go_flutter/playback/methods',
+  );
+
   @override
   void initState() {
     super.initState();
+    WidgetsBinding.instance.addObserver(this);
     _audio.addListener(_handleAudioStateChanged);
+    _casting.addListener(_handleCastingStateChanged);
     _liveInfo.addListener(_handleLiveInfoChanged);
     _liveInfo.start();
+    _playbackChannel.setMethodCallHandler(_handlePlaybackMethodCall);
+    
+    // When native code requests local audio to stop (cast media loaded)
+    _casting.onStopLocalAudioRequested = () {
+      unawaited(_audio.stop());
+    };
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    if (state == AppLifecycleState.resumed) {
+      // Re-initialize (not just refresh) to re-establish the EventChannel
+      // subscription. In a cold-start Android Auto scenario the Flutter engine
+      // boots headlessly before MainActivity.configureFlutterEngine() runs, so
+      // the native EventChannel StreamHandler is not yet registered when
+      // initialize() first fires. The "listen" message is dropped, eventSink
+      // stays null, and all subsequent emitStatus() calls are silently lost.
+      // Calling initialize() here cancels that dead subscription and creates a
+      // fresh one now that the handler is registered; onListen immediately
+      // re-emits statusPayload so the Dart state is fully re-synced.
+      unawaited(_casting.initialize());
+    }
+  }
+
+  Future<void> _handlePlaybackMethodCall(MethodCall call) async {
+    switch (call.method) {
+      case 'play':
+        await _play();
+      case 'stop':
+        await _stop();
+    }
   }
 
   void _handleAudioStateChanged() {
@@ -90,6 +182,8 @@ class _MainPageState extends State<MainPage> {
   }
 
   void _handleLiveInfoChanged() {
+    _audio.updateMetadataFromLiveInfo(_liveInfo.snapshot);
+
     if (!mounted) {
       return;
     }
@@ -99,17 +193,152 @@ class _MainPageState extends State<MainPage> {
     });
   }
 
+  void _handleCastingStateChanged() {
+    final currentStatus = _casting.status;
+
+    if (_casting.isPlaying || _casting.isBuffering) {
+      _pendingRemotePlay = false;
+    }
+
+    if (currentStatus != CastingStatus.connected) {
+      _isStartingCastStream = false;
+    }
+
+    if (_usesExternalCastPlayback &&
+        _pendingRemotePlay &&
+        !_isStartingCastStream) {
+      // Only load when _pendingRemotePlay was set by _play() while connecting.
+      // Do NOT trigger on justConnected — native pendingCastRequest handles
+      // all autoplay from showDevicePicker(autoplay: true).
+      _startCastingLiveStream();
+    }
+
+    if (!_usesExternalCastPlayback &&
+        currentStatus != CastingStatus.connecting) {
+      _pendingRemotePlay = false;
+    }
+
+    if (!mounted) {
+      return;
+    }
+
+    setState(() {
+      // Rebuild when cast state changes from the native platforms.
+    });
+  }
+
+  Future<void> _startCastingLiveStream() async {
+    _isStartingCastStream = true;
+
+    try {
+      await _casting.startCastingLiveStream(
+        streamUrl: _audio.streamUrl,
+        title: _audio.currentTitle,
+        subtitle: _audio.currentSubtitle,
+      );
+
+      _pendingRemotePlay = false;
+
+      if (_usesExternalCastPlayback && !_audio.isStopped) {
+        await _audio.stop();
+      }
+    } catch (_) {
+      _pendingRemotePlay = !_audio.isStopped;
+    } finally {
+      _isStartingCastStream = false;
+    }
+  }
+
   Future<void> _play() async {
+    if (_casting.status == CastingStatus.connecting) {
+      _pendingRemotePlay = true;
+      return;
+    }
+
+    if (_usesExternalCastPlayback) {
+      if (_casting.isPlaying || _isStartingCastStream) {
+        return;
+      }
+
+      await _startCastingLiveStream();
+      return;
+    }
+
+    _pendingRemotePlay = false;
     await _audio.play();
   }
 
   Future<void> _stop() async {
+    if (_usesExternalCastPlayback) {
+      await _casting.stopPlayback();
+      return;
+    }
+
     await _audio.stop();
   }
 
+  Future<void> _toggleCasting() async {
+    if (_casting.isConnected) {
+      await _casting.disconnect();
+      return;
+    }
+
+    final shouldAutoplay = !_audio.isStopped;
+    // Do NOT set _pendingRemotePlay when native handles autoplay.
+    // The native pendingCastRequest already handles autoplay via
+    // showDevicePicker(autoplay: true). Setting _pendingRemotePlay here
+    // causes a duplicate load from Flutter that races the native load and
+    // corrupts the cast status (especially in the Android Auto path).
+    // _pendingRemotePlay is only set by _play() when the user explicitly
+    // presses Play while the cast session is still connecting.
+    _pendingRemotePlay = false;
+    await _casting.showDevicePicker(
+      autoplay: shouldAutoplay,
+      streamUrl: shouldAutoplay ? _audio.streamUrl : null,
+      title: shouldAutoplay ? _audio.currentTitle : null,
+      subtitle: shouldAutoplay ? _audio.currentSubtitle : null,
+    );
+  }
+
+  String _castingLabel() {
+    final idleLabel = _isIosAirPlay ? 'AirPlay' : 'Cast';
+    final connectingLabel = _isIosAirPlay ? 'AirPlay...' : 'Casting...';
+    final errorLabel = _isIosAirPlay ? 'AirPlay Error' : 'Cast Error';
+    final unavailableLabel = _isIosAirPlay ? 'No AirPlay' : 'No Cast';
+
+    switch (_casting.status) {
+      case CastingStatus.idle:
+        return idleLabel;
+      case CastingStatus.connecting:
+        return connectingLabel;
+      case CastingStatus.connected:
+        final deviceName = _casting.connectedDeviceName;
+        if (deviceName != null && deviceName.isNotEmpty) {
+          return 'On $deviceName';
+        }
+        return _isIosAirPlay ? 'AirPlaying' : 'Casting';
+      case CastingStatus.error:
+        return errorLabel;
+      case CastingStatus.unavailable:
+        return unavailableLabel;
+    }
+  }
+
+  IconData _castingIcon() {
+    if (_isIosAirPlay) {
+      return Icons.airplay_rounded;
+    }
+
+    return _casting.isConnected
+        ? Icons.cast_connected_rounded
+        : Icons.cast_rounded;
+  }
+
   @override
   void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
     _audio.removeListener(_handleAudioStateChanged);
+    _casting.removeListener(_handleCastingStateChanged);
     _liveInfo.removeListener(_handleLiveInfoChanged);
     _liveInfo.dispose();
     super.dispose();
@@ -166,12 +395,12 @@ class _MainPageState extends State<MainPage> {
                       const SizedBox(width: 14),
                       Expanded(
                         child: Text(
-                          'KRYZ Go!',
+                          AppConfig.appName,
                           textAlign: TextAlign.center,
                           style: theme.textTheme.headlineMedium?.copyWith(
                             fontWeight: FontWeight.w900,
                             letterSpacing: 0.4,
-                            color: themeColors.statusText,
+                            color: themeColors.headingColor,
                           ),
                         ),
                       ),
@@ -219,20 +448,28 @@ class _MainPageState extends State<MainPage> {
                     runSpacing: 12,
                     children: [
                       ElevatedButton.icon(
-                        onPressed: _audio.isStopped ? _play : null,
+                        onPressed: _isPlaybackStopped ? _play : null,
                         icon: const Icon(Icons.play_arrow_rounded),
                         label: const Text('Play'),
                       ),
                       ElevatedButton.icon(
-                        onPressed: _audio.isStopped ? null : _stop,
+                        onPressed: _isPlaybackStopped ? null : _stop,
                         icon: const Icon(Icons.stop_rounded),
                         label: const Text('Stop'),
                       ),
+                      ElevatedButton.icon(
+                        onPressed:
+                            _casting.status == CastingStatus.connecting
+                            ? null
+                            : _toggleCasting,
+                        icon: Icon(_castingIcon()),
+                        label: Text(_castingLabel()),
+                      ),
                       Text(
                         _playbackStatusLabel(),
                         style: theme.textTheme.titleSmall?.copyWith(
                           fontWeight: FontWeight.w700,
-                          color: themeColors.statusText,
+                          color: themeColors.textOnDark,
                         ),
                       ),
                     ],

lib/recently_played_list.dart

@@ -0,0 +1,87 @@
+import 'package:flutter/material.dart';
+
+import 'live_info_business_object.dart';
+import 'time_formatter.dart';
+
+class RecentlyPlayedList extends StatelessWidget {
+  const RecentlyPlayedList({
+    super.key,
+    required this.recentPlayed,
+    required this.isLoading,
+  });
+
+  final List<RecentPlayedItem> recentPlayed;
+  final bool isLoading;
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          'Recently Played (runtime)',
+          style: Theme.of(
+            context,
+          ).textTheme.labelLarge?.copyWith(fontWeight: FontWeight.w700),
+        ),
+        const SizedBox(height: 6),
+        Expanded(
+          child: Container(
+            decoration: BoxDecoration(
+              color: Colors.black.withValues(alpha: 0.08),
+              borderRadius: BorderRadius.circular(12),
+            ),
+            child: recentPlayed.isEmpty
+                ? Center(
+                    child: Text(
+                      isLoading
+                          ? 'Loading recent items...'
+                          : 'No recent tracks captured yet',
+                      style: Theme.of(context).textTheme.bodySmall,
+                    ),
+                  )
+                : ListView.separated(
+                    itemCount: recentPlayed.length,
+                    separatorBuilder: (BuildContext context, int index) =>
+                        Divider(
+                          height: 1,
+                          color: Colors.black.withValues(alpha: 0.08),
+                        ),
+                    itemBuilder: (BuildContext context, int index) {
+                      final RecentPlayedItem item = recentPlayed[index];
+                      final String window = formatTimeWindow(
+                        item.starts,
+                        item.ends,
+                      );
+
+                      return ListTile(
+                        dense: true,
+                        contentPadding: const EdgeInsets.symmetric(
+                          horizontal: 12,
+                          vertical: 0,
+                        ),
+                        title: Text(
+                          item.title,
+                          maxLines: 1,
+                          overflow: TextOverflow.ellipsis,
+                          style: Theme.of(context).textTheme.bodyMedium
+                              ?.copyWith(fontWeight: FontWeight.w600),
+                        ),
+                        subtitle: Text(
+                          item.subtitle.isEmpty
+                              ? window
+                              : '${item.subtitle}  |  $window',
+                          maxLines: 1,
+                          overflow: TextOverflow.ellipsis,
+                          style: Theme.of(context).textTheme.bodySmall,
+                        ),
+                        leading: const Icon(Icons.queue_music_rounded),
+                      );
+                    },
+                  ),
+          ),
+        ),
+      ],
+    );
+  }
+}

lib/show_card.dart

@@ -0,0 +1,64 @@
+import 'package:flutter/material.dart';
+
+import 'live_info_business_object.dart';
+import 'time_formatter.dart';
+
+class ShowCard extends StatelessWidget {
+  const ShowCard({
+    super.key,
+    required this.label,
+    required this.show,
+    required this.sourceTimezone,
+    required this.titleColor,
+    required this.cardSurface,
+    required this.cardBorder,
+  });
+
+  final String label;
+  final LiveInfoShowInfo? show;
+  final String? sourceTimezone;
+  final Color titleColor;
+  final Color cardSurface;
+  final Color cardBorder;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
+      decoration: BoxDecoration(
+        borderRadius: BorderRadius.circular(12),
+        color: cardSurface,
+        border: Border.all(color: cardBorder),
+      ),
+      child: Row(
+        children: [
+          Icon(Icons.mic_external_on_rounded, color: titleColor, size: 18),
+          const SizedBox(width: 8),
+          Expanded(
+            child: Text(
+              '$label: ${show?.name ?? 'No scheduled show'}',
+              maxLines: 1,
+              overflow: TextOverflow.ellipsis,
+              style: Theme.of(
+                context,
+              ).textTheme.bodyMedium?.copyWith(
+                fontWeight: FontWeight.w600,
+                color: titleColor,
+              ),
+            ),
+          ),
+          const SizedBox(width: 8),
+          Text(
+            formatStartingTime(
+              show?.starts,
+              sourceTimezone: sourceTimezone,
+            ),
+            style: Theme.of(
+              context,
+            ).textTheme.labelSmall?.copyWith(color: titleColor),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/streaming_audio_business_object.dart

@@ -1,48 +1,95 @@
 import 'dart:async';
 
-import 'package:audio_session/audio_session.dart';
+import 'package:audio_service/audio_service.dart';
 import 'package:flutter/foundation.dart';
-import 'package:just_audio_background/just_audio_background.dart';
+
-import 'package:just_audio/just_audio.dart';
+import 'generated/app_config.dart';
+import 'kryz_audio_handler.dart';
+import 'live_info_business_object.dart';
 
 enum StreamingPlaybackStatus { stopped, buffering, playing }
 
 class StreamingAudioBusinessObject extends ChangeNotifier {
-  StreamingAudioBusinessObject({
+  StreamingAudioBusinessObject() {
-    this.streamUrl = 'https://kryz.out.airtime.pro/kryz_a',
+    final initFuture = _audioHandlerInitFuture;
-  }) {
+    if (initFuture != null) {
-    _playerStateSubscription = _player.playerStateStream.listen((state) {
+      initFuture.then((handler) {
-      _setPlaybackStatus(_mapPlayerStateToStatus(state));
+        if (_isDisposed) {
-    });
+          return;
+        }
+        _attachHandler(handler);
+      });
+    }
+
+    final handler = _audioHandler;
+    if (handler != null) {
+      _attachHandler(handler);
+    }
   }
 
-  final String streamUrl;
+  static AudioHandler? _audioHandler;
-  final AudioPlayer _player = AudioPlayer();
+  static Future<AudioHandler>? _audioHandlerInitFuture;
-  late final StreamSubscription<PlayerState> _playerStateSubscription;
+
-  bool _isSourceLoaded = false;
+  static Future<void> initializeBackgroundAudio() async {
+    if (_audioHandler != null) {
+      return;
+    }
+
+    _audioHandlerInitFuture ??= AudioService.init(
+      builder: () => KryzAudioHandler(),
+      config: const AudioServiceConfig(
+        androidNotificationChannelId: 'com.kryzgoflutter.audio.channel',
+        androidNotificationChannelName: '${AppConfig.appName} Audio Playback',
+        androidNotificationOngoing: true,
+        androidStopForegroundOnPause: true,
+      ),
+    ).then((handler) {
+      _audioHandler = handler;
+      return handler;
+    }).catchError((error) {
+      _audioHandlerInitFuture = null;
+      throw error;
+    });
+
+    await _audioHandlerInitFuture;
+  }
+
+  String get streamUrl => KryzAudioHandler.streamUrl;
+
+  StreamSubscription<PlaybackState>? _playbackStateSubscription;
+  StreamSubscription<MediaItem?>? _mediaItemSubscription;
   StreamingPlaybackStatus _playbackStatus = StreamingPlaybackStatus.stopped;
-  bool _isAudioSessionConfigured = false;
+  bool _isDisposed = false;
-  bool _playRequested = false;
+  bool _isAttached = false;
+  String _currentTitle = AppConfig.defaultTitle;
+  String _currentSubtitle = AppConfig.defaultArtist;
 
   StreamingPlaybackStatus get playbackStatus => _playbackStatus;
   bool get isPlaying => _playbackStatus == StreamingPlaybackStatus.playing;
   bool get isBuffering => _playbackStatus == StreamingPlaybackStatus.buffering;
   bool get isStopped => _playbackStatus == StreamingPlaybackStatus.stopped;
+  String get currentTitle => _currentTitle;
+  String get currentSubtitle => _currentSubtitle;
 
-  StreamingPlaybackStatus _mapPlayerStateToStatus(PlayerState state) {
+  Future<void> ensureInitialized() async {
-    if (state.processingState == ProcessingState.completed) {
+    await initializeBackgroundAudio();
+  }
+
+  StreamingPlaybackStatus _mapPlaybackStateToStatus(PlaybackState state) {
+    if (state.processingState == AudioProcessingState.completed) {
       return StreamingPlaybackStatus.stopped;
     }
 
     if (state.playing) {
-      if (state.processingState == ProcessingState.ready) {
+      if (state.processingState == AudioProcessingState.ready) {
         return StreamingPlaybackStatus.playing;
       }
 
       return StreamingPlaybackStatus.buffering;
     }
 
-    if (_playRequested && state.processingState != ProcessingState.completed) {
+    if (state.processingState == AudioProcessingState.buffering ||
+        state.processingState == AudioProcessingState.loading) {
       return StreamingPlaybackStatus.buffering;
     }
 
@@ -58,57 +105,66 @@ class StreamingAudioBusinessObject extends ChangeNotifier {
     notifyListeners();
   }
 
-  Future<void> _configureAudioSessionIfNeeded() async {
-    if (_isAudioSessionConfigured) {
-      return;
-    }
-
-    final session = await AudioSession.instance;
-    await session.configure(const AudioSessionConfiguration.music());
-    _isAudioSessionConfigured = true;
-  }
-
   Future<void> play() async {
-    _playRequested = true;
-    await _configureAudioSessionIfNeeded();
     _setPlaybackStatus(StreamingPlaybackStatus.buffering);
-
+    final handler = await _requireHandler();
-    try {
+    await handler.play();
-      if (!_isSourceLoaded) {
-        await _player.setAudioSource(
-          AudioSource.uri(
-            Uri.parse(streamUrl),
-            tag: const MediaItem(
-              id: 'kryz-live-stream',
-              title: 'KRYZ Live Stream',
-              artist: 'KRYZ Radio',
-              album: 'Live',
-            ),
-          ),
-        );
-        _isSourceLoaded = true;
-      }
-
-      final session = await AudioSession.instance;
-      await session.setActive(true);
-      await _player.play();
-    } catch (_) {
-      _playRequested = false;
-      _setPlaybackStatus(StreamingPlaybackStatus.stopped);
-      rethrow;
-    }
   }
 
   Future<void> stop() async {
-    _playRequested = false;
+    final handler = await _requireHandler();
+    await handler.stop();
     _setPlaybackStatus(StreamingPlaybackStatus.stopped);
-    await _player.stop();
+  }
+
+  Future<void> updateMetadataFromLiveInfo(LiveInfoSnapshot? snapshot) async {
+    final handler = await _requireHandler();
+    await handler.updateMetadataFromLiveInfo(snapshot);
+  }
+
+  Future<KryzAudioHandler> _requireHandler() async {
+    await initializeBackgroundAudio();
+    final handler = _audioHandler;
+    if (handler is! KryzAudioHandler) {
+      throw StateError('KryzAudioHandler is not initialized');
+    }
+    _attachHandler(handler);
+    return handler;
+  }
+
+  void _attachHandler(AudioHandler handler) {
+    if (_isAttached) {
+      return;
+    }
+
+    _isAttached = true;
+    _playbackStateSubscription = handler.playbackState.listen((state) {
+      _setPlaybackStatus(_mapPlaybackStateToStatus(state));
+    });
+    _mediaItemSubscription = handler.mediaItem.listen((item) {
+      if (item == null) {
+        return;
+      }
+
+      final title = item.title.trim().isEmpty ? AppConfig.defaultTitle : item.title;
+      final subtitle =
+          (item.artist ?? '').trim().isEmpty ? AppConfig.defaultArtist : item.artist!.trim();
+
+      if (title == _currentTitle && subtitle == _currentSubtitle) {
+        return;
+      }
+
+      _currentTitle = title;
+      _currentSubtitle = subtitle;
+      notifyListeners();
+    });
   }
 
   @override
   void dispose() {
-    _playerStateSubscription.cancel();
+    _isDisposed = true;
-    _player.dispose();
+    _playbackStateSubscription?.cancel();
+    _mediaItemSubscription?.cancel();
     super.dispose();
   }
 }

lib/time_formatter.dart

@@ -0,0 +1,136 @@
+import 'package:intl/intl.dart';
+import 'package:timezone/timezone.dart' as tz;
+
+// Source - https://stackoverflow.com/a/54775297
+// Posted by diegoveloper, modified by community. See post 'Timeline' for change history
+// Retrieved 2026-05-09, License - CC BY-SA 4.0
+
+String _printDuration(Duration duration) {
+  String negativeSign = duration.isNegative ? '-' : '';
+  String twoDigits(int n) => n.toString().padLeft(2, "0");
+  String twoDigitMinutes = twoDigits(duration.inMinutes.abs());
+  String twoDigitSeconds = twoDigits(duration.inSeconds.remainder(60).abs());
+  return "$negativeSign$twoDigitMinutes:$twoDigitSeconds";
+}
+
+String formatTimeWindow(String? starts, String? ends) {
+  if (starts != null && ends != null) {
+    DateTime? startDt = _tryParseServerDateTime(starts);
+    DateTime? endDt = _tryParseServerDateTime(ends);
+    if (startDt == null || endDt == null) {
+      return '--:--';
+    }
+
+    Duration songLength = endDt.difference(startDt);
+
+    return _printDuration(songLength);
+  }
+
+  return "--:--";
+}
+
+String formatStartingTime(String? startingTime, {String? sourceTimezone}) {
+  if (startingTime != null) {
+    final DateTime? localStart = _serverTimeToLocal(
+      startingTime,
+      sourceTimezone: sourceTimezone,
+    );
+    if (localStart == null) {
+      return '--:--';
+    }
+    return DateFormat('jm').format(localStart);
+  }
+  return "--:--";
+}
+
+DateTime? _serverTimeToLocal(String rawTime, {String? sourceTimezone}) {
+  final DateTime? parsed = _tryParseServerDateTime(rawTime);
+  if (parsed == null) {
+    return null;
+  }
+
+  if (_hasExplicitTimezone(rawTime)) {
+    return parsed.toLocal();
+  }
+
+  // API timestamps are wall-clock values in the API timezone field.
+  if (sourceTimezone == null || sourceTimezone.trim().isEmpty) {
+    return parsed;
+  }
+
+  try {
+    final tz.Location sourceLocation = tz.getLocation(sourceTimezone.trim());
+    final tz.TZDateTime sourceTime = tz.TZDateTime(
+      sourceLocation,
+      parsed.year,
+      parsed.month,
+      parsed.day,
+      parsed.hour,
+      parsed.minute,
+      parsed.second,
+      parsed.millisecond,
+      parsed.microsecond,
+    );
+    return DateTime.fromMillisecondsSinceEpoch(
+      sourceTime.millisecondsSinceEpoch,
+      isUtc: true,
+    ).toLocal();
+  } catch (_) {
+    return parsed;
+  }
+}
+
+bool _hasExplicitTimezone(String value) {
+  final String trimmed = value.trim();
+
+  if (trimmed.endsWith('Z') || trimmed.endsWith('z')) {
+    return true;
+  }
+
+  final RegExp offsetPattern = RegExp(r'[+-]\d{2}:?\d{2}$');
+  return offsetPattern.hasMatch(trimmed);
+}
+
+DateTime? _tryParseServerDateTime(String value) {
+  final String trimmed = value.trim();
+  if (trimmed.isEmpty) {
+    return null;
+  }
+
+  final DateTime? isoAttempt = DateTime.tryParse(trimmed);
+  if (isoAttempt != null) {
+    return isoAttempt;
+  }
+
+  final RegExp serverDateTimePattern = RegExp(
+    r'^(\d{4})-(\d{2})-(\d{2})\s+(\d{2}):(\d{2}):(\d{2})(?:\.(\d{1,6}))?$',
+  );
+  final RegExpMatch? match = serverDateTimePattern.firstMatch(trimmed);
+  if (match == null) {
+    return null;
+  }
+
+  int parsePart(int group) => int.parse(match.group(group)!);
+
+  final int year = parsePart(1);
+  final int month = parsePart(2);
+  final int day = parsePart(3);
+  final int hour = parsePart(4);
+  final int minute = parsePart(5);
+  final int second = parsePart(6);
+
+  final String fraction = (match.group(7) ?? '').padRight(6, '0');
+  final int microseconds =
+      fraction.isEmpty ? 0 : int.parse(fraction.substring(0, 6));
+
+  return DateTime(
+    year,
+    month,
+    day,
+    hour,
+    minute,
+    second,
+    microseconds ~/ 1000,
+    microseconds % 1000,
+  );
+}

lib/track_card.dart

@@ -0,0 +1,80 @@
+import 'package:flutter/material.dart';
+
+import 'live_info_business_object.dart';
+import 'time_formatter.dart';
+
+class TrackCard extends StatelessWidget {
+  const TrackCard({
+    super.key,
+    required this.label,
+    required this.track,
+    required this.titleColor,
+    required this.cardSurface,
+    required this.cardBorder,
+  });
+
+  final String label;
+  final LiveInfoTrackInfo? track;
+  final Color titleColor;
+  final Color cardSurface;
+  final Color cardBorder;
+
+  @override
+  Widget build(BuildContext context) {
+    final String title = track?.displayTitle ?? 'Unavailable';
+    final String subtitle = (track?.displaySubtitle ?? '').trim();
+    final String window = formatTimeWindow(track?.starts, track?.ends);
+
+    return Container(
+      padding: const EdgeInsets.all(12),
+      decoration: BoxDecoration(
+        color: cardSurface,
+        borderRadius: BorderRadius.circular(14),
+        border: Border.all(color: cardBorder),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          Text(
+            label,
+            style: Theme.of(context).textTheme.labelMedium?.copyWith(
+              fontWeight: FontWeight.w700,
+              color: titleColor,
+            ),
+          ),
+          const SizedBox(height: 6),
+          Text(
+            title,
+            maxLines: 2,
+            overflow: TextOverflow.ellipsis,
+            style: Theme.of(
+              context,
+            ).textTheme.titleMedium?.copyWith(
+              fontWeight: FontWeight.w700,
+              color: titleColor,
+            ),
+          ),
+          const SizedBox(height: 6),
+          Text(
+            subtitle.isEmpty ? 'No metadata provided' : subtitle,
+            maxLines: 6,
+            overflow: TextOverflow.ellipsis,
+            style: Theme.of(
+              context,
+            ).textTheme.bodySmall?.copyWith(color: titleColor),
+          ),
+          const Spacer(),
+          Text(
+            window,
+            style: Theme.of(
+              context,
+            ).textTheme.labelMedium?.copyWith(
+              fontWeight: FontWeight.w600,
+              color: titleColor,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}