Removed audio related code

lib/audio/audio.ts

@@ -1,100 +0,0 @@
-import { createPubSub } from '../pubsub';
-import { AudioState } from './types';
-
-export const createAudio = () => {
-  const pubsub = createPubSub();
-  const element = document.createElement('video');
-  let currentTime = 0;
-
-  let state: AudioState = {
-    duration: 0,
-    playing: false,
-    volume: 0,
-  };
-
-  const setState = (value: Partial<AudioState>) => {
-    state = { ...state, ...value };
-
-    pubsub.publish('change', state);
-  };
-
-  const setup = () => {
-    element.addEventListener('durationchange', () =>
-      setState({ duration: element.duration }),
-    );
-
-    element.addEventListener('playing', () => setState({ playing: true }));
-
-    element.addEventListener('pause', () => setState({ playing: false }));
-
-    element.addEventListener('timeupdate', () => {
-      const newCurrentTime = Math.round(element.currentTime);
-
-      if (currentTime !== newCurrentTime) {
-        currentTime = newCurrentTime;
-
-        pubsub.publish('change-current-time', currentTime);
-      }
-    });
-
-    element.addEventListener('volumechange', () =>
-      setState({ volume: element.volume }),
-    );
-
-    setState({ volume: element.volume });
-  };
-
-  setup();
-
-  return {
-    seek(seconds: number) {
-      element.currentTime = seconds;
-      currentTime = seconds;
-
-      pubsub.publish('change-current-time', currentTime);
-    },
-
-    getElement() {
-      return element;
-    },
-
-    getState() {
-      return state;
-    },
-
-    getCurrentTime() {
-      return currentTime;
-    },
-
-    play() {
-      element.play();
-    },
-
-    pause() {
-      element.pause();
-    },
-
-    volume(value: number) {
-      element.volume = value;
-    },
-
-    setUrl(url: string) {
-      element.setAttribute('src', url);
-      setState({ playing: false });
-    },
-
-    subscribe(listener: (newState: AudioState) => void) {
-      return pubsub.subscribe('change', listener);
-    },
-
-    onChangeCurrentTime(listener: (newCurrentTime: number) => void) {
-      return pubsub.subscribe('change-current-time', listener);
-    },
-
-    onEnded(listener: () => void) {
-      element.addEventListener('ended', listener);
-
-      return () => element.removeEventListener('ended', listener);
-    },
-  };
-};

lib/audio/hooks.ts

@@ -1,27 +0,0 @@
-import { useState, useEffect } from 'react';
-
-import player from './player';
-
-export const usePlayerState = () => {
-  const [state, setState] = useState(player.getState());
-
-  useEffect(() => {
-    const unsubscribe = player.subscribe(setState);
-
-    return unsubscribe;
-  }, []);
-
-  return state;
-};
-
-export const useCurrentTime = () => {
-  const [currentTime, setCurrentTime] = useState(player.getCurrentTime());
-
-  useEffect(() => {
-    const unsubscribe = player.onChangeCurrentTime(setCurrentTime);
-
-    return unsubscribe;
-  }, []);
-
-  return currentTime;
-};

lib/audio/player.ts

@@ -1,106 +0,0 @@
-import { createPubSub } from '../pubsub';
-import { createAudio } from './audio';
-import { State, Track } from './types';
-
-const createPlayer = () => {
-  const pubsub = createPubSub();
-  const audio = createAudio();
-
-  let state: State = {
-    ...audio.getState(),
-    tracks: [],
-    currentTrackIndex: null,
-    currentTrack: null,
-  };
-
-  const setState = (value: Partial<State>) => {
-    state = { ...state, ...value };
-
-    pubsub.publish('change', state);
-  };
-
-  audio.subscribe(setState);
-
-  const changeTrack = () => {
-    const track = state.currentTrack;
-
-    if (track) {
-      audio.setUrl(track.url);
-      audio.play();
-    }
-  };
-
-  const next = () => {
-    if (state.currentTrackIndex === null) {
-      return;
-    }
-
-    const lastIndex = state.tracks.length - 1;
-    const newIndex = state.currentTrackIndex + 1;
-
-    if (newIndex <= lastIndex) {
-      setState({
-        currentTrackIndex: newIndex,
-        currentTrack: state.tracks[newIndex],
-      });
-
-      changeTrack();
-    }
-  };
-
-  audio.onEnded(next);
-
-  return {
-    play: audio.play,
-    pause: audio.pause,
-    seek: audio.seek,
-    volume: audio.volume,
-    getCurrentTime: audio.getCurrentTime,
-    getElement: audio.getElement,
-    onChangeCurrentTime: audio.onChangeCurrentTime,
-
-    getState() {
-      return state;
-    },
-
-    setQueue(tracks: Track[]) {
-      setState({ tracks });
-    },
-
-    playTrack(trackIndex: number) {
-      setState({
-        currentTrackIndex: trackIndex,
-        currentTrack: state.tracks[trackIndex],
-      });
-
-      changeTrack();
-    },
-
-    next,
-
-    prev() {
-      if (state.currentTrackIndex === null) {
-        return;
-      }
-
-      const newIndex = state.currentTrackIndex - 1;
-
-      if (newIndex >= 0) {
-        setState({
-          currentTrack: state.tracks[newIndex],
-          currentTrackIndex: newIndex,
-        });
-
-        changeTrack();
-      }
-    },
-
-    subscribe(listener: (newState: State) => void) {
-      return pubsub.subscribe('change', listener);
-    },
-  };
-};
-
-const player = createPlayer();
-
-export default player;

lib/audio/types.ts

@@ -1,17 +0,0 @@
-export type AudioState = {
-    duration: number;
-    playing: boolean;
-    volume: number;
-  };
-  
-  export type Track = {
-    url: string;
-    title: string;
-  };
-  
-  export type State = AudioState & {
-    tracks: Track[];
-    currentTrack: Track | null;
-    currentTrackIndex: number | null;
-  };
-