-
-
Notifications
You must be signed in to change notification settings - Fork 4
/
mixes.ts
46 lines (38 loc) · 1.11 KB
/
mixes.ts
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
// Imports
import xpath from 'xpath'
// Types
import { Mix as MixType } from '../types/mix'
/**
* Mix inputs from XML API
*/
export default class Mixes {
/**
* Returns all mixes
*/
static all(xmlDocument: Document): MixType[] {
return [2, 3, 4]
.map(number => this.getSingle(xmlDocument, number as 2 | 3 | 4) as MixType)
.filter(x => x !== null)
}
/**
* Returns a single mix
*/
static getSingle(xmlDocument: Document, number: 2 | 3 | 4): MixType | null {
const mixState = xpath.select1(`/vmix/mix[@number="${number}"]`, xmlDocument) as Element
if (!mixState) {
return null
}
// Read child elements
const previewEl = xpath.select1('preview', mixState) as Element
const activeEl = xpath.select1('active', mixState) as Element
// Guard unable to read values
if (!previewEl || !previewEl.textContent || !previewEl.textContent.length || !activeEl || !activeEl.textContent || !activeEl.textContent.length) {
return null
}
return {
number,
preview: Number(previewEl.textContent),
active: Number(activeEl.textContent),
}
}
}