Files
web-pwa/src/lib/quick-links.svelte.ts

61 lines
1.3 KiB
TypeScript

export interface QuickLink {
id: string;
score: number;
lastAccessed: number;
}
const RETURNED_LENGTH: number = 6;
const MAX_SCORE: number = 50;
const MAX_ENTRIES: number = RETURNED_LENGTH * 4;
class QuickLinksService {
#links = $state<QuickLink[]>([]);
constructor() {
if (typeof window !== 'undefined') {
const saved = localStorage.getItem('ql');
if (saved) {
this.#links = JSON.parse(saved);
}
}
}
get list(): QuickLink[] {
return this.#links.slice(0, RETURNED_LENGTH);
}
recordVisit(id: string) {
if (id == '') return;
const existing = this.#links.find((l) => l.id === id);
if (existing) {
existing.score += 1;
existing.lastAccessed = Date.now();
} else {
this.#links.push({
id: id,
score: 1,
lastAccessed: Date.now()
});
}
// Score decay - if MAX_SCORE reached, divide all by two
if (this.#links.some((l) => l.score > MAX_SCORE)) {
this.#links.forEach((l) => {
l.score = Math.max(1, Math.floor(l.score / 2));
});
}
// Sort & Prune
const sorted = [...this.#links].sort(
(a, b) => b.score - a.score || b.lastAccessed - a.lastAccessed
);
this.#links = sorted.slice(0, MAX_ENTRIES);
localStorage.setItem('ql', JSON.stringify(this.#links));
}
}
export const quickLinks = new QuickLinksService();