56 lines
1.5 KiB
TypeScript
56 lines
1.5 KiB
TypeScript
import type { TrackRef } from '$lib/api/types';
|
|
|
|
export type PersistedPlayerState = {
|
|
v: 1;
|
|
queue: TrackRef[];
|
|
index: number;
|
|
position: number;
|
|
savedAt: number;
|
|
};
|
|
|
|
const persistKey = (userId: string) => `minstrel.queue.${userId}`;
|
|
|
|
export function readPersistedQueue(userId: string): PersistedPlayerState | null {
|
|
if (typeof localStorage === 'undefined') return null;
|
|
try {
|
|
const raw = localStorage.getItem(persistKey(userId));
|
|
if (!raw) return null;
|
|
const parsed = JSON.parse(raw) as Partial<PersistedPlayerState>;
|
|
if (parsed.v !== 1) return null;
|
|
if (!Array.isArray(parsed.queue)) return null;
|
|
if (typeof parsed.index !== 'number') return null;
|
|
if (typeof parsed.position !== 'number') return null;
|
|
return parsed as PersistedPlayerState;
|
|
} catch {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
export function writePersistedQueue(
|
|
userId: string,
|
|
state: { queue: TrackRef[]; index: number; position: number }
|
|
): void {
|
|
if (typeof localStorage === 'undefined') return;
|
|
try {
|
|
const payload: PersistedPlayerState = {
|
|
v: 1,
|
|
queue: state.queue,
|
|
index: state.index,
|
|
position: state.position,
|
|
savedAt: Date.now()
|
|
};
|
|
localStorage.setItem(persistKey(userId), JSON.stringify(payload));
|
|
} catch {
|
|
// QuotaExceededError, security errors, etc. Swallow; persistence is best-effort.
|
|
}
|
|
}
|
|
|
|
export function clearPersistedQueue(userId: string): void {
|
|
if (typeof localStorage === 'undefined') return;
|
|
try {
|
|
localStorage.removeItem(persistKey(userId));
|
|
} catch {
|
|
/* ignore */
|
|
}
|
|
}
|