Method getOrCompute

frontend/utils/storage/computationCache.ts:63–96

* Get or compute a cached value

(
    key: string,
    data: unknown,
    computeFn: () => T,
    options?: { ttl?: number; forceRecompute?: boolean }
  )

   * Get or compute a cached value
   */
  getOrCompute<T>(
    key: string,
    data: unknown,
    computeFn: () => T,
    options?: { ttl?: number; forceRecompute?: boolean }
  ): T {
    const dataHash = this.hashData(data);
    const cacheKey = `${key}:${dataHash}`;
    const now = Date.now();
    const ttl = options?.ttl ?? this.maxAge;

    // Check if we have a valid cached entry
    if (!options?.forceRecompute) {
      const entry = this.cache.get(cacheKey);
      if (entry && (now - entry.timestamp) < ttl) {
        return entry.value as T;
      }
    }

    // Compute new value
    const value = computeFn();

    // Store in cache
    this.cache.set(cacheKey, {
      value,
      timestamp: now,
      dataHash,
    });

    // Evict old entries if cache is too large
    this.evictIfNeeded();

    return value;
  }

  /**
   * Get a cached value without computing (returns undefined if not cached)