init

index.ts

@@ -0,0 +1,181 @@
+import { Database } from "bun:sqlite";
+
+// 初始化 SQLite 數據庫
+const db = new Database("orders.db");
+
+// 創建 orders 表
+db.run(`
+  CREATE TABLE IF NOT EXISTS orders (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    customer_name TEXT NOT NULL,
+    product_name TEXT NOT NULL,
+    quantity INTEGER NOT NULL,
+    price REAL NOT NULL,
+    status TEXT DEFAULT 'pending',
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+  )
+`);
+
+// 定義類型
+interface Order {
+  id?: number;
+  customer_name: string;
+  product_name: string;
+  quantity: number;
+  price: number;
+  status?: string;
+  created_at?: string;
+}
+
+// 準備 SQL 語句
+const insertOrderStmt = db.prepare(`
+  INSERT INTO orders (customer_name, product_name, quantity, price, status)
+  VALUES ($customerName, $productName, $quantity, $price, $status)
+`);
+
+const getOrdersStmt = db.prepare(`
+  SELECT * FROM orders
+  WHERE ($customerName IS NULL OR customer_name LIKE $customerName)
+    AND ($productName IS NULL OR product_name LIKE $productName)
+    AND ($status IS NULL OR status = $status)
+  ORDER BY created_at DESC
+  LIMIT $limit OFFSET $offset
+`);
+
+const getOrderCountStmt = db.prepare(`
+  SELECT COUNT(*) as count FROM orders
+  WHERE ($customerName IS NULL OR customer_name LIKE $customerName)
+    AND ($productName IS NULL OR product_name LIKE $productName)
+    AND ($status IS NULL OR status = $status)
+`);
+
+// 創建服務器
+const server = Bun.serve({
+  port: 3000,
+  async fetch(req) {
+    const url = new URL(req.url);
+    const path = url.pathname;
+    const method = req.method;
+
+    // CORS headers
+    const headers = {
+      "Content-Type": "application/json",
+      "Access-Control-Allow-Origin": "*",
+      "Access-Control-Allow-Methods": "GET, POST, PUT, DELETE, OPTIONS",
+      "Access-Control-Allow-Headers": "Content-Type",
+    };
+
+    // 處理預檢請求
+    if (method === "OPTIONS") {
+      return new Response(null, { status: 204, headers });
+    }
+
+    try {
+      if (path === "/api/orders" && method === "GET") {
+        // 解析查詢參數
+        const page = parseInt(url.searchParams.get("page") || "1");
+        const pageSize = parseInt(url.searchParams.get("pageSize") || "10");
+        const customerName = url.searchParams.get("customerName") || null;
+        const productName = url.searchParams.get("productName") || null;
+        const status = url.searchParams.get("status") || null;
+
+        // 計算偏移量
+        const offset = (page - 1) * pageSize;
+
+        // 準備查詢參數
+        const params: any = {
+          $customerName: customerName ? `%${customerName}%` : null,
+          $productName: productName ? `%${productName}%` : null,
+          $status: status,
+          $limit: pageSize,
+          $offset: offset
+        };
+
+        // 查詢訂單列表
+        const orders = getOrdersStmt.all(params) as Order[];
+
+        // 獲取總數
+        const countResult: any = getOrderCountStmt.get({
+          $customerName: customerName ? `%${customerName}%` : null,
+          $productName: productName ? `%${productName}%` : null,
+          $status: status
+        });
+
+        const total = countResult.count;
+
+        return Response.json({
+          success: true,
+          data: {
+            orders,
+            pagination: {
+              page,
+              pageSize,
+              total,
+              totalPages: Math.ceil(total / pageSize)
+            }
+          }
+        }, { headers });
+      } else if (path === "/api/orders" && method === "POST") {
+        // 添加新訂單
+        const body: any = await req.json();
+        
+        const order: Order = {
+          customer_name: body.customer_name,
+          product_name: body.product_name,
+          quantity: body.quantity,
+          price: body.price,
+          status: body.status || 'pending'
+        };
+
+        // 驗證必需字段
+        if (!order.customer_name || !order.product_name || order.quantity <= 0 || order.price <= 0) {
+          return Response.json({
+            success: false,
+            message: "缺少必需字段或字段值無效"
+          }, { 
+            status: 400,
+            headers 
+          });
+        }
+
+        // 插入數據
+        const result = insertOrderStmt.run({
+          $customerName: order.customer_name,
+          $productName: order.product_name,
+          $quantity: order.quantity,
+          $price: order.price,
+          $status: order.status || 'pending'
+        });
+
+        return Response.json({
+          success: true,
+          message: "訂單創建成功",
+          data: {
+            id: result.lastInsertRowid as number,
+            ...order
+          }
+        }, { headers });
+      } else {
+        return Response.json({
+          success: false,
+          message: "路由不存在"
+        }, { 
+          status: 404,
+          headers 
+        });
+      }
+    } catch (error: any) {
+      console.error("服務器錯誤:", error);
+      
+      return Response.json({
+        success: false,
+        message: error.message || "服務器內部錯誤"
+      }, { 
+        status: 500,
+        headers 
+      });
+    }
+  }
+});
+
+console.log(`Server running at http://localhost:${server.port}`);