/
Mediastic.js
58 lines (48 loc) · 1.27 KB
/
Mediastic.js
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
const defaults = require('lodash.defaults');
const defaultOpts = {};
let Mediastic = module.exports = function (opts) {
if (!(this instanceof Mediastic)) {
return new Mediastic(opts);
}
let options = defaults(opts, defaultOpts);
this.middlewares = [];
};
Mediastic.fileNameParser = require('./FileNameParser.js');
Mediastic.spotifyApi = require('./SpotifyAPI.js');
Mediastic.tagParser = require('./TagParser.js');
let proto = Mediastic.prototype;
proto._stack = function (meta, next) {
next();
};
proto.use = function (middleware) {
// We don't want promises, don't we?
if (middleware.then)
throw new Error('Expected a function, but got a Promise');
this._stack = ((stack) => {
return (metadata, next) => {
stack(metadata, () => {
middleware(metadata, next);
});
};
})(this._stack);
}
proto.call = function(file) {
return new Promise((resolve, reject) => {
try {
let metadata = {
path: file
};
this._stack(metadata, () => {
resolve(metadata);
});
} catch (err) {
reject(err);
}
});
};
proto.loadDefaults = function (opts) {
opts = opts || {};
this.use(Mediastic.tagParser());
this.use(Mediastic.fileNameParser());
this.use(Mediastic.spotifyApi(opts.spotifyApi));
};