feat: Add Google Cast support

Co-authored-by: Liraz Shalom <liraz@Lirazs-MacBook-Air.local>

Author: liraz747

app/build.gradle.kts

@@ -202,8 +202,13 @@ dependencies {
     implementation(libs.media3)
     implementation(libs.media3.session)
     implementation(libs.media3.okhttp)
+    implementation(libs.media3.cast)
     implementation(libs.squigglyslider)
 
+    // Google Cast
+    implementation(libs.mediarouter)
+    implementation(libs.cast.framework)
+
     implementation(libs.room.runtime)
     implementation(libs.kuromoji.ipadic)
     implementation(libs.tinypinyin)

app/proguard-rules.pro

@@ -111,3 +111,8 @@
 -dontwarn com.yalantis.ucrop**
 -keep class com.yalantis.ucrop** { *; }
 -keep interface com.yalantis.ucrop** { *; }
+
+## Google Cast Rules
+-keep class com.metrolist.music.cast.** { *; }
+-keep class com.google.android.gms.cast.** { *; }
+-keep class androidx.mediarouter.** { *; }

app/src/main/AndroidManifest.xml

@@ -174,6 +174,11 @@
         <meta-data
             android:name="com.google.android.gms.car.application"
             android:resource="@xml/automotive_app_desc" />
+
+        <!-- Google Cast Options Provider -->
+        <meta-data
+            android:name="com.google.android.gms.cast.framework.OPTIONS_PROVIDER_CLASS_NAME"
+            android:value="com.metrolist.music.cast.CastOptionsProvider" />
     </application>
 
 </manifest>

app/src/main/kotlin/com/metrolist/music/cast/CastOptionsProvider.kt

@@ -0,0 +1,45 @@
+package com.metrolist.music.cast
+
+import android.content.Context
+import com.google.android.gms.cast.CastMediaControlIntent
+import com.google.android.gms.cast.framework.CastOptions
+import com.google.android.gms.cast.framework.OptionsProvider
+import com.google.android.gms.cast.framework.SessionProvider
+import com.google.android.gms.cast.framework.media.CastMediaOptions
+import com.google.android.gms.cast.framework.media.MediaIntentReceiver
+import com.google.android.gms.cast.framework.media.NotificationOptions
+
+/**
+ * CastOptionsProvider for Google Cast integration.
+ * This class provides the Cast options for the app.
+ */
+class CastOptionsProvider : OptionsProvider {
+
+    override fun getCastOptions(context: Context): CastOptions {
+        val notificationOptions = NotificationOptions.Builder()
+            .setActions(
+                listOf(
+                    MediaIntentReceiver.ACTION_SKIP_PREV,
+                    MediaIntentReceiver.ACTION_TOGGLE_PLAYBACK,
+                    MediaIntentReceiver.ACTION_SKIP_NEXT,
+                    MediaIntentReceiver.ACTION_STOP_CASTING
+                ),
+                intArrayOf(1, 2) // Indices of actions for compact view
+            )
+            .build()
+
+        val mediaOptions = CastMediaOptions.Builder()
+            .setNotificationOptions(notificationOptions)
+            .build()
+
+        return CastOptions.Builder()
+            .setReceiverApplicationId(CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID)
+            .setCastMediaOptions(mediaOptions)
+            .setStopReceiverApplicationWhenEndingSession(true)
+            .build()
+    }
+
+    override fun getAdditionalSessionProviders(context: Context): List<SessionProvider>? {
+        return null
+    }
+}

app/src/main/kotlin/com/metrolist/music/constants/PreferenceKeys.kt

@@ -78,6 +78,9 @@ val DiscordNameKey = stringPreferencesKey("discordName")
 val EnableDiscordRPCKey = booleanPreferencesKey("discordRPCEnable")
 val DiscordUseDetailsKey = booleanPreferencesKey("discordUseDetails")
 
+// Google Cast
+val EnableGoogleCastKey = booleanPreferencesKey("enableGoogleCast")
+
 val LastFMSessionKey = stringPreferencesKey("lastfmSession")
 val LastFMUsernameKey = stringPreferencesKey("lastfmUsername")
 val EnableLastFMScrobblingKey = booleanPreferencesKey("lastfmScrobblingEnable")