test ai-blog

ai-conversation/src/utils/cache.js

@@ -0,0 +1,63 @@
+import { logger } from './logger.js'
+
+class SimpleCache {
+  constructor(ttl = 30000) { // 30秒TTL
+    this.cache = new Map()
+    this.ttl = ttl
+  }
+
+  generateKey(...parts) {
+    return parts.filter(Boolean).join(':')
+  }
+
+  get(key) {
+    const item = this.cache.get(key)
+    if (!item) return null
+    
+    if (Date.now() - item.timestamp > this.ttl) {
+      this.cache.delete(key)
+      return null
+    }
+    
+    logger.log(`Cache hit: ${key}`)
+    return item.data
+  }
+
+  set(key, data) {
+    this.cache.set(key, {
+      data,
+      timestamp: Date.now()
+    })
+    logger.log(`Cache set: ${key}`)
+  }
+
+  clear() {
+    this.cache.clear()
+    logger.log('Cache cleared')
+  }
+
+  invalidatePattern(pattern) {
+    let deletedCount = 0
+    for (const key of this.cache.keys()) {
+      if (key.includes(pattern)) {
+        this.cache.delete(key)
+        deletedCount++
+      }
+    }
+    logger.log(`Cache invalidated: ${pattern} (${deletedCount} items)`)
+  }
+
+  getStats() {
+    return {
+      size: this.cache.size,
+      keys: Array.from(this.cache.keys())
+    }
+  }
+}
+
+export const dataCache = new SimpleCache()
+
+// デバッグ用：開発環境でのみグローバルからアクセス可能にする
+if (import.meta.env.DEV) {
+  window.dataCache = dataCache
+}