App/player/service.ts

import Client from "../api/client";
import { JellifyTrack } from "../types/JellifyTrack";
import { getUserLibraryApi } from "@jellyfin/sdk/lib/utils/api";
import TrackPlayer, { Event, RatingType } from "react-native-track-player";
import { getActiveTrack } from "react-native-track-player/lib/src/trackPlayer";

/**
 * Jellify Playback Service.
 * 
 * Sets up event listeners for remote control events and
 * runs for the duration of the app lifecycle
 */
export async function PlaybackService() {

    TrackPlayer.addEventListener(Event.RemotePlay, async () => {
        await TrackPlayer.play();
    });
    TrackPlayer.addEventListener(Event.RemotePause, async () => {
        await TrackPlayer.pause();
    });

    TrackPlayer.addEventListener(Event.RemoteNext, async () => {
        await TrackPlayer.skipToNext();
    });

    TrackPlayer.addEventListener(Event.RemotePrevious, async () => {
        await TrackPlayer.skipToPrevious();
    });

    TrackPlayer.addEventListener(Event.RemoteSeek, async (event) => {
        await TrackPlayer.seekTo(event.position);
    });

    // TrackPlayer.addEventListener(Event.RemoteJumpForward, async (event) => {
    //     await TrackPlayer.seekBy(event.interval)
    // });

    // TrackPlayer.addEventListener(Event.RemoteJumpBackward, async (event) => {
    //     await TrackPlayer.seekBy(-event.interval)
    // });

    TrackPlayer.addEventListener(Event.RemoteLike, async () => {

        const progress = await TrackPlayer.getProgress();
        const nowPlaying = await getActiveTrack() as JellifyTrack;

        await getUserLibraryApi(Client.api!)
            .markFavoriteItem({
                itemId: nowPlaying.item.Id!
            });

        await TrackPlayer.updateOptions({
            likeOptions: {
                isActive: false,
                title: "Favorite"
            },
            dislikeOptions: {
                isActive: true,
                title: "Unfavorite"
            }
        });
    });

    TrackPlayer.addEventListener(Event.RemoteDislike, async () => {

        const progress = await TrackPlayer.getProgress();
        const nowPlaying = await getActiveTrack() as JellifyTrack;

        await getUserLibraryApi(Client.api!)
            .markFavoriteItem({
                itemId: nowPlaying.item.Id!
            });

        await TrackPlayer.updateNowPlayingMetadata({
            elapsedTime: progress.position,
            rating: undefined
        });

        await TrackPlayer.updateOptions({
            likeOptions: {
                isActive: true,
                title: "Favorite"
            },
            dislikeOptions: {
                isActive: false,
                title: "Unfavorite"
            }
        });
    });
}