tempus/app/src/main/java/com/cappielloantonio/tempo/widget/WidgetActions.java

package com.cappielloantonio.tempo.widget;

import android.content.ComponentName;
import android.content.Context;
import android.util.Log;

import androidx.media3.common.Player;
import androidx.media3.session.MediaController;
import androidx.media3.session.SessionToken;

import com.cappielloantonio.tempo.service.MediaService;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.MoreExecutors;

import java.util.concurrent.ExecutionException;

public final class WidgetActions {
    public static void dispatchToMediaSession(Context ctx, String action) {
        Log.d("TempoWidget", "dispatch action=" + action);
        Context appCtx = ctx.getApplicationContext();
        SessionToken token = new SessionToken(appCtx, new ComponentName(appCtx, MediaService.class));
        ListenableFuture<MediaController> future = new MediaController.Builder(appCtx, token).buildAsync();
        future.addListener(() -> {
            try {
                if (!future.isDone()) return;
                MediaController c = future.get();
                Log.d("TempoWidget", "controller connected, isPlaying=" + c.isPlaying());
                switch (action) {
                    case WidgetProvider.ACT_PLAY_PAUSE:
                        if (c.isPlaying()) c.pause();
                        else c.play();
                        break;
                    case WidgetProvider.ACT_NEXT:
                        c.seekToNext();
                        break;
                    case WidgetProvider.ACT_PREV:
                        c.seekToPrevious();
                        break;
                    case WidgetProvider.ACT_TOGGLE_SHUFFLE:
                        c.setShuffleModeEnabled(!c.getShuffleModeEnabled());
                        break;
                    case WidgetProvider.ACT_CYCLE_REPEAT:
                        int repeatMode = c.getRepeatMode();
                        int nextMode;
                        if (repeatMode == Player.REPEAT_MODE_OFF) {
                            nextMode = Player.REPEAT_MODE_ALL;
                        } else if (repeatMode == Player.REPEAT_MODE_ALL) {
                            nextMode = Player.REPEAT_MODE_ONE;
                        } else {
                            nextMode = Player.REPEAT_MODE_OFF;
                        }
                        c.setRepeatMode(nextMode);
                        break;
                }
                WidgetUpdateManager.refreshFromController(ctx);
                c.release();
            } catch (ExecutionException | InterruptedException e) {
                Log.e("TempoWidget", "dispatch failed", e);
            }
        }, MoreExecutors.directExecutor());
    }
}