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| 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 | 4x 1x | import Dexie from 'dexie'
const KEY = 'listme:userId'
export function getUserId(): string | null {
return localStorage.getItem(KEY)
}
export function setUserId(id: string): void {
localStorage.setItem(KEY, id)
}
export function getOrCreateUserId(): string {
const existing = getUserId()
if (existing) return existing
const newId = crypto.randomUUID()
setUserId(newId)
return newId
}
// Called once before the app mounts.
// Migrates an existing deviceId from IndexedDB (old format) → localStorage userId.
class LegacyDeviceDb extends Dexie {
meta!: Dexie.Table<{ key: string; value: string }, string>
constructor() {
super('listme-device')
this.version(1).stores({ meta: 'key' })
}
}
export async function initUserId(): Promise<void> {
if (getUserId()) return // already set
try {
const db = new LegacyDeviceDb()
const row = await db.meta.get('deviceId')
if (row?.value) {
setUserId(row.value)
return
}
} catch {
// IndexedDB unavailable (SSR, test env, etc.) — skip migration
}
setUserId(crypto.randomUUID())
}
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