Function getCachedGraph

website/src/pages/Explore.tsx:87–118

(ref: RepoRef)

};

const getCachedGraph = async (ref: RepoRef): Promise<any | null> => {
  try {
    const db = await openDB();
    const cacheKeys = [getCacheKey(ref), getLegacyCacheKey(ref)];
    return new Promise((resolve, reject) => {
      const transaction = db.transaction(STORE_NAME, "readonly");
      const store = transaction.objectStore(STORE_NAME);
      let pending = cacheKeys.length;
      let found: any | null = null;

      for (const key of cacheKeys) {
        const request = store.get(key);
        request.onerror = () => reject(request.error);
        request.onsuccess = () => {
          const result = request.result;
          if (
            !found &&
            result &&
            Date.now() - result.timestamp < 7 * 24 * 60 * 60 * 1000
          ) {
            found = result.graphData;
          }
          pending -= 1;
          if (pending === 0) resolve(found);
        };
      }
    });
  } catch (e) {
    console.error("Failed to read from IndexedDB", e);
    return null;
  }
};

const cacheGraph = async (ref: RepoRef, graphData: any): Promise<void> => {
  try {