import { Middleware, AnyAction } from 'redux'; import { RootState } from '..'; interface AudioSource { src: string type: string } const createAudio = (sources: AudioSource[]) => { const audio = new Audio(); sources.forEach(({ type, src }) => { const source = document.createElement('source'); source.type = type; source.src = src; audio.appendChild(source); }); return audio; }; const play = (audio: HTMLAudioElement) => { if (!audio.paused) { audio.pause(); if (typeof audio.fastSeek === 'function') { audio.fastSeek(0); } else { audio.currentTime = 0; } } audio.play(); }; export const soundsMiddleware = (): Middleware, RootState> => { const soundCache: {[key: string]: HTMLAudioElement} = { boop: createAudio([ { src: '/sounds/boop.ogg', type: 'audio/ogg', }, { src: '/sounds/boop.mp3', type: 'audio/mpeg', }, ]), }; return () => next => (action: AnyAction) => { const sound = action?.meta?.sound; if (sound && soundCache[sound]) { play(soundCache[sound]); } return next(action); }; };