api.js

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`6e3f55a5` 2023-10-13 Pavel Safronov	1	const apiExpiry = 3600 * 1000; // 1 hour
	2
`e39bdb17` 2023-10-14 Pavel Safronov	3	function createCallbackState(processedCount, totalCount) {
	4	return {
	5	processedCount: processedCount,
	6	totalCount: totalCount
	7	};
	8	}
	9
`8c91be32` 2023-10-13 Pavel Safronov	10	async function getAlbums(statusCallback) {
`6e3f55a5` 2023-10-13 Pavel Safronov	11	const db = await openDb();
	12	const cacheKey = 'albums';
`4d32aa41` 2023-10-13 Pavel Safronov	13	const cachedAlbums = await getWithExpiry(db, cacheKey);
	14	if (cachedAlbums) {
`8c91be32` 2023-10-13 Pavel Safronov	15	if (statusCallback) {
`e39bdb17` 2023-10-14 Pavel Safronov	16	statusCallback(createCallbackState(cachedAlbums.length, cachedAlbums.length))
`8c91be32` 2023-10-13 Pavel Safronov	17	}
`4d32aa41` 2023-10-13 Pavel Safronov	18	return cachedAlbums;
`6e3f55a5` 2023-10-13 Pavel Safronov	19	}
	20
`cc1af884` 2023-10-13 Pavel Safronov	21	const accessToken = await getAccessToken();
`4d32aa41` 2023-10-13 Pavel Safronov	22	const albums = [];
	23	let url = 'https://api.spotify.com/v1/me/albums?limit=50';
	24	while (url) {
	25	const response = await fetch(url, {
	26	headers: {
	27	Authorization: 'Bearer ' + accessToken
	28	}
	29	});
	30	const data = await response.json();
	31	albums.push(...data.items);
`8c91be32` 2023-10-13 Pavel Safronov	32	if (statusCallback) {
`e39bdb17` 2023-10-14 Pavel Safronov	33	statusCallback(createCallbackState(albums.length, data.total))
`8c91be32` 2023-10-13 Pavel Safronov	34	}
`4d32aa41` 2023-10-13 Pavel Safronov	35	url = data.next;
	36	}
`601035fb` 2023-10-12 Pavel Safronov	37
`4d32aa41` 2023-10-13 Pavel Safronov	38	await setWithExpiry(db, cacheKey, albums, apiExpiry);
	39	return albums;
`8edcc887` 2023-10-13 Pavel Safronov	40	}
	41
`8c91be32` 2023-10-13 Pavel Safronov	42	async function getTracks(albumId, statusCallback) {
`6e3f55a5` 2023-10-13 Pavel Safronov	43	const db = await openDb();
	44	const cacheKey = `tracks-${albumId}`;
`4d32aa41` 2023-10-13 Pavel Safronov	45	const cachedTracks = await getWithExpiry(db, cacheKey);
	46	if (cachedTracks) {
`8c91be32` 2023-10-13 Pavel Safronov	47	if (statusCallback) {
`e39bdb17` 2023-10-14 Pavel Safronov	48	statusCallback(createCallbackState(cachedTracks.length, cachedTracks.length))
`8c91be32` 2023-10-13 Pavel Safronov	49	}
`4d32aa41` 2023-10-13 Pavel Safronov	50	return cachedTracks;
`6e3f55a5` 2023-10-13 Pavel Safronov	51	}
	52
`4d32aa41` 2023-10-13 Pavel Safronov	53	const tracks = [];
`cc1af884` 2023-10-13 Pavel Safronov	54	const accessToken = await getAccessToken();
`4d32aa41` 2023-10-13 Pavel Safronov	55	let url = `https://api.spotify.com/v1/albums/${albumId}/tracks?limit=50`;
	56	while (url) {
	57	const response = await fetch(url, {
	58	headers: {
	59	Authorization: 'Bearer ' + accessToken
	60	}
	61	});
	62	const data = await response.json();
	63	tracks.push(...data.items);
`8c91be32` 2023-10-13 Pavel Safronov	64	if (statusCallback) {
`e39bdb17` 2023-10-14 Pavel Safronov	65	statusCallback(createCallbackState(tracks.length, data.total))
`8c91be32` 2023-10-13 Pavel Safronov	66	}
`4d32aa41` 2023-10-13 Pavel Safronov	67	url = data.next;
	68	}
`601035fb` 2023-10-12 Pavel Safronov	69
`4d32aa41` 2023-10-13 Pavel Safronov	70	await setWithExpiry(db, cacheKey, tracks, apiExpiry);
	71	return tracks;
`8edcc887` 2023-10-13 Pavel Safronov	72	}
	73
	74	async function playTrack(trackId) {
`3bf5fcbb` 2023-10-13 Pavel Safronov	75	let accessToken = await getAccessToken();
`8edcc887` 2023-10-13 Pavel Safronov	76	console.info(`Playing track ${trackId}`);
	77	await fetch(`https://api.spotify.com/v1/me/player/play`, {
	78	method: 'PUT',
	79	headers: {
	80	Authorization: 'Bearer ' + accessToken
	81	},
	82	body: JSON.stringify({
	83	uris: [`spotify:track:${trackId}`]
	84	})
	85	});
	86	}
`cc1af884` 2023-10-13 Pavel Safronov	87
	88	async function getPlayingTrack() {
	89	const accessToken = await getAccessToken();
	90	const response = await fetch("https://api.spotify.com/v1/me/player", {
	91	headers: {
	92	Authorization: 'Bearer ' + accessToken
	93	}
	94	});
	95
`4d32aa41` 2023-10-13 Pavel Safronov	96	if (response.status == 204) {
	97	return null;
	98	}
	99
`cc1af884` 2023-10-13 Pavel Safronov	100	const data = await response.json();
	101	return data;
	102	}
	103
	104	async function play() {
	105	const accessToken = await getAccessToken();
	106	await fetch("https://api.spotify.com/v1/me/player/play", {
	107	method: "PUT",
	108	headers: {
	109	Authorization: 'Bearer ' + accessToken
	110	}
	111	});
	112	}
	113
	114	async function pause() {
	115	const accessToken = await getAccessToken();
	116	await fetch("https://api.spotify.com/v1/me/player/pause", {
	117	method: "PUT",
	118	headers: {
	119	Authorization: 'Bearer ' + accessToken
	120	}
	121	});
`8c91be32` 2023-10-13 Pavel Safronov	122	}