@duongtrungnguyen/next-helper/dist/esm/query/cache.js

Helper library for Next.js 15

class QueryCache {
  constructor() {
    this.cache = /* @__PURE__ */ new Map();
  }
  getKeyString(queryKey) {
    return JSON.stringify(queryKey);
  }
  get(queryKey) {
    const keyString = this.getKeyString(queryKey);
    const entry = this.cache.get(keyString);
    if (!entry) {
      return void 0;
    }
    if (this.isStale(queryKey)) {
      this.cache.delete(keyString);
      return void 0;
    }
    return entry.data;
  }
  set(queryKey, data, staleTime = 5 * 60 * 1e3, cacheTime = 30 * 60 * 1e3) {
    const keyString = this.getKeyString(queryKey);
    const entry = this.cache.get(keyString);
    if (entry) {
      entry.data = data;
      entry.timestamp = Date.now();
      entry.staleTime = staleTime;
      entry.cacheTime = cacheTime;
      entry.subscribers.forEach((callback) => callback());
    } else {
      this.cache.set(keyString, {
        data,
        timestamp: Date.now(),
        staleTime,
        cacheTime,
        subscribers: /* @__PURE__ */ new Set()
      });
    }
  }
  isStale(queryKey) {
    const keyString = this.getKeyString(queryKey);
    const entry = this.cache.get(keyString);
    if (!entry) {
      return true;
    }
    const now = Date.now();
    return now - entry.timestamp > entry.staleTime;
  }
  subscribe(queryKey, callback) {
    const keyString = this.getKeyString(queryKey);
    let entry = this.cache.get(keyString);
    if (!entry) {
      entry = {
        data: void 0,
        timestamp: 0,
        staleTime: 0,
        cacheTime: 0,
        subscribers: /* @__PURE__ */ new Set()
      };
      this.cache.set(keyString, entry);
    }
    entry.subscribers.add(callback);
    return () => {
      const currentEntry = this.cache.get(keyString);
      if (currentEntry) {
        currentEntry.subscribers.delete(callback);
      }
    };
  }
  invalidate(queryKey) {
    const keyString = this.getKeyString(queryKey);
    const entry = this.cache.get(keyString);
    if (entry) {
      entry.timestamp = 0;
      entry.subscribers.forEach((callback) => callback());
    }
  }
  remove(queryKey) {
    const keyString = this.getKeyString(queryKey);
    this.cache.delete(keyString);
  }
  clear() {
    this.cache.clear();
  }
  getMatchingKeys(queryKey) {
    const prefix = this.getKeyString(queryKey);
    const matchingKeys = [];
    this.cache.forEach((_, key) => {
      if (key.startsWith(prefix)) {
        matchingKeys.push(JSON.parse(key));
      }
    });
    return matchingKeys;
  }
}
const queryCache = new QueryCache();
export {
  queryCache
};
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