https://caldariprimeponyclub.com/src/api/SourceCatalogue.mjs

1import { CurrentSofSource } from "./SiteSource.mjs";
2
3export class SourceCatalogue
4{
5
6    #held = new Map();
7
8    Key(source)
9    {
10        return String(source?.id ?? "");
11    }
12
13    async Fetch()
14    {
15        return [];
16    }
17
18    List()
19    {
20        const source = CurrentSofSource();
21        const key = this.Key(source);
22        const held = this.#held.get(key);
23
24        if (held) return held;
25
26        const pending = this.Fetch(source).catch(() => []);
27
28        this.#held.set(key, pending);
29
30        pending.then(list => { if (!list.length) this.#held.delete(key); });
31
32        return pending;
33    }
34
35    Forget()
36    {
37        this.#held.clear();
38    }
39
40}
41
42export default SourceCatalogue;