Method detectStorageFull

packages/service-worker/worker/src/data.ts:630–654

* Detect if storage is full or approaching capacity. * Returns true if storage is at or near capacity.

()

   * Returns true if storage is at or near capacity.
   */
  private async detectStorageFull() {
    try {
      const estimate = await navigator.storage.estimate();
      const {quota, usage} = estimate;

      // Handle cases where quota or usage might be undefined
      if (typeof quota !== 'number' || typeof usage !== 'number') {
        return;
      }

      // Consider storage "full" if usage is >= 95% of quota
      // This provides a safety buffer before actual storage exhaustion
      const usagePercentage = (usage / quota) * 100;
      const isStorageFull = usagePercentage >= 95;

      if (isStorageFull) {
        this.debugHandler.log(
          'Storage is full or nearly full',
          `DataGroup(${this.config.name}@${this.config.version}).detectStorageFull()`,
        );
      }
    } catch {
      //  Error estimating storage, possibly by unsupported browser.
    }
  }
}