1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
import axios, { AxiosResponse } from 'axios';
import { logger } from '../logger.js';
import { WebSocket } from 'ws';
import { RedisClientConnection } from '../config/redis.js';
export namespace SpotifyClient {
let clients = new Set<WebSocket>();
let interval: NodeJS.Timeout;
let authenticationFailed = false;
let lastUpdate: any;
let lastUpdateTimestamp: number;
let redis: RedisClientConnection;
export const addClient = (client: WebSocket) => {
clients.add(client);
if (lastUpdate && lastUpdateTimestamp > Date.now() - 10000) {
client.send(JSON.stringify(lastUpdate));
}
}
const apiTokenUrl = 'https://accounts.spotify.com/api/token';
const spotifyClientHeaders = {
'Content-Type': 'application/x-www-form-urlencoded'
}
export const setTokens = async (accessToken: string, refreshToken: string) => {
logger.info('Re-identifying with Spotify');
await redis.set('spotify_access_token', accessToken);
await redis.set('spotify_refresh_token', refreshToken);
authenticationFailed = false;
}
const refreshAccessToken = async () => {
logger.info('Refreshing access token from Spotify');
try {
const refreshToken = await redis.get('spotify_refresh_token');
const res = await axios.post(apiTokenUrl, {
grant_type: 'refresh_token',
refresh_token: refreshToken,
client_id: process.env.SPOTIFY_CLIENT_ID,
client_secret: process.env.SPOTIFY_CLIENT_SECRET
}, { headers: spotifyClientHeaders });
await redis.set('spotify_access_token', res.data.access_token);
if (res.data.refresh_token) {
await redis.set('spotify_refresh_token', res.data.refresh_token);
}
logger.info('Access token refreshed');
} catch (err) {
if (err.response?.data?.error) {
logger.error(`Failed to refresh access token: ${err.message}: ${err.response.data.error}`);
} else {
logger.error(`Failed to refresh access token: ${err.message} (${err.response.status} ${err.response.statusText} ${err.response.data.error})`);
}
authenticationFailed = true;
}
}
export const initialise = async (client: RedisClientConnection) => {
redis = client;
await refreshAccessToken();
await updateTimeout();
}
const updateTimeout = async () => {
const delay = await update();
interval = setTimeout(updateTimeout, delay*1000);
}
const update = async (): Promise<number> => {
if (authenticationFailed) {
return 5;
}
clients.forEach(client => {
if (client.readyState !== WebSocket.OPEN) {
clients.delete(client);
}
});
if (clients.size === 0) {
return 1;
}
try {
const token = await redis.get('spotify_access_token');
let res: AxiosResponse;
try {
res = await axios.get('https://api.spotify.com/v1/me/player/currently-playing', {
headers: {
'Authorization': 'Bearer ' + token,
}
});
} catch (err) {
if (err.response?.status === 401) {
await refreshAccessToken();
return 1;
} else {
throw err;
}
}
try {
let update = {
title: res.data.item?.name,
duration: res.data.item?.duration_ms,
artist: res.data.item?.artists[0]?.name,
progress: res.data.progress_ms,
album: res.data.item?.album.name,
albumArt: res.data.item?.album.images[0]?.url,
url: res.data.item?.external_urls.spotify,
state: res.data.is_playing ? 'playing' : 'paused',
}
lastUpdate = update;
lastUpdateTimestamp = Date.now();
clients.forEach(client => {
client.send(JSON.stringify(update));
});
} catch (err) {
logger.error(`Failed to parse and send current song: ${err.message}`);
}
} catch (err) {
if (err.response?.data?.error?.message) {
logger.error(`Failed to get current song: ${err.message}: ${err.response.data.error.message}`);
} else {
logger.error(`Failed to get current song: ${err.message} (${err.response.status} ${err.response.statusText} ${err.response.data.error})`);
}
}
return 5;
}
export const stop = () => {
clearInterval(interval);
clients.forEach(client => client.close());
}
}
|
