Simplify D1 database access and add fallback to LocalStorage for Edge Runtime compatibility

src/app/api/debug/env/route.ts

@@ -1,42 +1,22 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
-import { NextRequest, NextResponse } from 'next/server';
+import { NextResponse } from 'next/server';
 
 export const runtime = 'edge';
 
-export async function GET(request: NextRequest) {
+export async function GET() {
   try {
-    const debugInfo = {
+    return NextResponse.json({
+      status: 'ok',
       timestamp: new Date().toISOString(),
-      environment: {
-        NODE_ENV: process.env.NODE_ENV,
-        NEXT_PUBLIC_STORAGE_TYPE: process.env.NEXT_PUBLIC_STORAGE_TYPE,
-        USERNAME: process.env.USERNAME ? '***' : undefined,
-        PASSWORD: process.env.PASSWORD ? '***' : undefined,
-      },
-      globalThis: {
-        hasDB: typeof globalThis !== 'undefined' && !!(globalThis as any).DB,
-        hasProcess: typeof globalThis !== 'undefined' && !!(globalThis as any).process,
-        hasCloudflare: typeof globalThis !== 'undefined' && !!(globalThis as any).cloudflare,
-      },
-      processEnv: {
-        hasDB: !!(process.env as any).DB,
-        keys: Object.keys(process.env).filter(key => 
-          key.startsWith('DB') || 
-          key.startsWith('NEXT_') || 
-          key.startsWith('CF_') ||
-          key.startsWith('CLOUDFLARE_')
-        ),
-      },
       runtime: 'edge',
-      userAgent: request.headers.get('user-agent')?.slice(0, 100),
-    };
-
-    return NextResponse.json(debugInfo);
+      storageType: process.env.NEXT_PUBLIC_STORAGE_TYPE || 'localstorage',
+      hasDB: !!(globalThis as any).DB,
+      nodeEnv: process.env.NODE_ENV
+    });
   } catch (error) {
     return NextResponse.json({
-      error: 'Debug info collection failed',
-      message: error instanceof Error ? error.message : 'Unknown error',
-      timestamp: new Date().toISOString()
+      error: 'Debug failed',
+      message: error instanceof Error ? error.message : 'Unknown error'
     }, { status: 500 });
   }
 }

src/lib/d1.db.ts

@@ -39,35 +39,21 @@ interface D1ExecResult {
 
 // 获取全局D1数据库实例
 function getD1Database(): D1Database {
-  // 尝试多种方式访问 D1 数据库
-  
-  // 1. Cloudflare Pages Functions 中通过 env.DB 访问
-  if (typeof globalThis !== 'undefined' && (globalThis as any).DB) {
-    return (globalThis as any).DB as D1Database;
+  // 在 Cloudflare Pages 环境中，DB 通过全局绑定可用
+  if (typeof globalThis !== 'undefined') {
+    // 尝试直接访问全局 DB
+    const globalDB = (globalThis as any).DB;
+    if (globalDB) {
+      return globalDB as D1Database;
+    }
   }
   
-  // 2. 通过 process.env.DB 访问（用于本地开发）
-  if ((process.env as any).DB) {
+  // 回退到 process.env（用于本地开发）
+  if (process.env.DB) {
     return (process.env as any).DB as D1Database;
   }
   
-  // 3. 通过 globalThis.process.env.DB 访问
-  if (typeof globalThis !== 'undefined' && (globalThis as any).process?.env?.DB) {
-    return (globalThis as any).process.env.DB as D1Database;
-  }
-  
-  // 4. 检查 Cloudflare Workers 环境变量
-  if (typeof globalThis !== 'undefined' && (globalThis as any).cloudflare?.env?.DB) {
-    return (globalThis as any).cloudflare.env.DB as D1Database;
-  }
-  
-  // 最后检查是否在测试环境中，如果是则抛出更详细的错误
-  const isDev = process.env.NODE_ENV === 'development';
-  const errorMessage = isDev 
-    ? 'D1 database not available in development. Using D1 requires deployment to Cloudflare Pages.'
-    : 'D1 database binding not configured. Check your Cloudflare Pages settings.';
-    
-  throw new Error(errorMessage);
+  throw new Error('D1 database not available');
 }
 
 export class D1Storage implements IStorage {

src/lib/db.ts

@@ -20,19 +20,34 @@ const STORAGE_TYPE =
 
 // 创建存储实例
 function createStorage(): IStorage {
-  switch (STORAGE_TYPE) {
-    case 'redis':
-      return new RedisStorage();
-    case 'kvrocks':
-      return new KvrocksStorage();
-    case 'upstash':
-      return new UpstashRedisStorage();
-    case 'd1':
-      return new D1Storage();
-    case 'localstorage':
-    default:
-      // 使用 LocalStorage 实现，适用于本地开发和简单部署
-      return new LocalStorage();
+  const storageType = STORAGE_TYPE;
+  
+  try {
+    switch (storageType) {
+      case 'redis':
+        return new RedisStorage();
+      case 'kvrocks':
+        return new KvrocksStorage();
+      case 'upstash':
+        return new UpstashRedisStorage();
+      case 'd1':
+        // 对于 d1，先检查是否可用
+        if (typeof globalThis !== 'undefined' && (globalThis as any).DB) {
+          return new D1Storage();
+        } else if (process.env.DB) {
+          return new D1Storage();
+        } else {
+          // D1 不可用，回退到 LocalStorage
+          return new LocalStorage();
+        }
+      case 'localstorage':
+      default:
+        // 使用 LocalStorage 实现，适用于本地开发和简单部署
+        return new LocalStorage();
+    }
+  } catch (error) {
+    // 创建存储失败，回退到 LocalStorage
+    return new LocalStorage();
   }
 }