Files
clube67_newwhats.local/clube67/newwhats.local/frontend/hooks/useStickerCache.ts
T
VPS 4 Deploy Agent b97f7f94e4 feat: sistema de figurinhas, emoji PT-BR e preloader inteligente
- Stickers: captura automática por fileSha256 (Baileys) no MessageHandler,
  tabela Prisma 'stickers' com deduplicação por [tenantId, sha256],
  API REST /api/stickers (list + favorite toggle), cache IndexedDB permanente
  (sem TTL — conteúdo imutável), StickerPanel.tsx com abas Recentes/Favoritos
- Emoji picker: migrado de emoji-picker-react para @emoji-mart/react com
  locale="pt" (tradução completa: categorias, busca, mensagem de sem resultado)
- Preloader: aparece apenas em hard reload (F5/URL direta) via
  performance.getEntriesByType('navigation').type + sessionStorage flag,
  navegação client-side Next.js pula o overlay instantaneamente
- Avatar cache: Wasabi como storage persistente + IndexedDB client-side,
  avatar_version via MD5(avatarUrl) sem coluna extra no banco,
  rota /api/storage/view/* para servir arquivos Wasabi ao frontend

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-11 17:48:36 +02:00

83 lines
2.5 KiB
TypeScript

'use client'
/**
* useStickerCache — cache de figurinhas em IndexedDB.
*
* Chave de cache: sha256 hex do arquivo (conteúdo permanente — nunca muda).
* Sem TTL: stickers são imutáveis, então o cache é eterno.
* O único motivo para uma entrada sumir é o usuário limpar dados do navegador.
*
* Armazenamento: dataURL base64 do WebP (compatível com <img src>).
*/
const DB_NAME = 'nw-stickers'
const STORE_NAME = 'blobs'
const DB_VERSION = 1
interface CacheEntry {
sha256: string
dataUrl: string
}
let dbPromise: Promise<IDBDatabase> | null = null
function openDB(): Promise<IDBDatabase> {
if (dbPromise) return dbPromise
dbPromise = new Promise((resolve, reject) => {
const req = indexedDB.open(DB_NAME, DB_VERSION)
req.onupgradeneeded = () => {
const db = req.result
if (!db.objectStoreNames.contains(STORE_NAME)) {
db.createObjectStore(STORE_NAME, { keyPath: 'sha256' })
}
}
req.onsuccess = () => resolve(req.result)
req.onerror = () => { dbPromise = null; reject(req.error) }
})
return dbPromise
}
export async function getStickerFromCache(sha256: string): Promise<string | null> {
if (typeof window === 'undefined') return null
try {
const db = await openDB()
return new Promise((resolve) => {
const tx = db.transaction(STORE_NAME, 'readonly')
const req = tx.objectStore(STORE_NAME).get(sha256)
req.onsuccess = () => resolve((req.result as CacheEntry | undefined)?.dataUrl ?? null)
req.onerror = () => resolve(null)
})
} catch {
return null
}
}
export async function setStickerInCache(sha256: string, dataUrl: string): Promise<void> {
if (typeof window === 'undefined') return
try {
const db = await openDB()
await new Promise<void>((resolve, reject) => {
const tx = db.transaction(STORE_NAME, 'readwrite')
const entry: CacheEntry = { sha256, dataUrl }
const req = tx.objectStore(STORE_NAME).put(entry)
req.onsuccess = () => resolve()
req.onerror = () => reject(req.error)
})
} catch { /* quota exceeded — ignora */ }
}
export async function hasStickerInCache(sha256: string): Promise<boolean> {
if (typeof window === 'undefined') return false
try {
const db = await openDB()
return new Promise((resolve) => {
const tx = db.transaction(STORE_NAME, 'readonly')
const req = tx.objectStore(STORE_NAME).count(sha256)
req.onsuccess = () => resolve(req.result > 0)
req.onerror = () => resolve(false)
})
} catch {
return false
}
}