51 lines
1.7 KiB
JavaScript
51 lines
1.7 KiB
JavaScript
const DB_NAME = 'shine-ui-messages-v1';
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const DB_VERSION = 1;
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const STORE_MESSAGES = 'messages';
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function openDb() {
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return new Promise((resolve, reject) => {
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const request = indexedDB.open(DB_NAME, DB_VERSION);
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request.onupgradeneeded = () => {
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const db = request.result;
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if (!db.objectStoreNames.contains(STORE_MESSAGES)) {
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const store = db.createObjectStore(STORE_MESSAGES, { keyPath: 'messageKey' });
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store.createIndex('by_chat', 'chatId', { unique: false });
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store.createIndex('by_ts', 'ts', { unique: false });
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}
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};
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request.onsuccess = () => resolve(request.result);
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request.onerror = () => reject(request.error || new Error('IndexedDB open failed'));
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});
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}
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async function withStore(mode, callback) {
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const db = await openDb();
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try {
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return await new Promise((resolve, reject) => {
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const tx = db.transaction(STORE_MESSAGES, mode);
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const store = tx.objectStore(STORE_MESSAGES);
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const result = callback(store, tx);
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tx.oncomplete = () => resolve(result);
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tx.onerror = () => reject(tx.error || new Error('IndexedDB transaction failed'));
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tx.onabort = () => reject(tx.error || new Error('IndexedDB transaction aborted'));
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});
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} finally {
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db.close();
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}
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}
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export async function putStoredMessage(record) {
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if (!record || !record.messageKey) return;
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await withStore('readwrite', (store) => {
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store.put(record);
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});
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}
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export async function listStoredMessages() {
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return withStore('readonly', (store) => new Promise((resolve, reject) => {
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const req = store.getAll();
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req.onsuccess = () => resolve(Array.isArray(req.result) ? req.result : []);
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req.onerror = () => reject(req.error || new Error('IndexedDB getAll failed'));
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}));
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}
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