Initial commit

app.py

@@ -0,0 +1,104 @@
+import os
+import mysql.connector
+from mysql.connector import pooling
+from flask import Flask, jsonify, request
+from flask_cors import CORS
+from datetime import datetime
+
+# --- 從環境變數讀取資料庫連線資訊 ---
+# os.environ.get() 會嘗試讀取環境變數，如果找不到，則使用後面的預設值
+# 這讓程式碼在本地 (使用預設值) 和 Zeabur (使用環境變數) 都能運作
+DB_CONFIG = {
+    'user': os.environ.get('DB_USER', 'A023'),
+    'password': os.environ.get('DB_PASSWORD', 'UkrHhx76kCCM'),
+    'host': os.environ.get('DB_HOST', 'mysql.theaken.com'),
+    'port': int(os.environ.get('DB_PORT', 33306)),
+    'database': os.environ.get('DB_NAME', 'db_A023'),
+}
+
+# --- 建立應用程式與啟用 CORS ---
+app = Flask(__name__)
+CORS(app)
+
+# --- 建立資料庫連線池 ---
+connection_pool = None
+try:
+    connection_pool = mysql.connector.pooling.MySQLConnectionPool(
+        pool_name="api_pool",
+        pool_size=5,
+        **DB_CONFIG
+    )
+    print("資料庫連線池建立成功！")
+except mysql.connector.Error as err:
+    print(f"資料庫連線池建立失敗: {err}")
+
+# --- 統一回應格式的輔助函式 ---
+def create_response(status, data, message, code):
+    return jsonify({
+        "status": status,
+        "code": code,
+        "message": message,
+        "data": data
+    }), code
+
+def create_error_response(message, code):
+    return create_response("error", None, message, code)
+
+# --- API Endpoint: /menu ---
+@app.route('/menu', methods=['GET'])
+def get_menu_by_date():
+    menu_date_str = request.args.get('date')
+
+    if not menu_date_str:
+        return create_error_response("The 'date' parameter is required.", 400)
+
+    try:
+        datetime.strptime(menu_date_str, '%Y-%m-%d')
+    except ValueError:
+        return create_error_response("Invalid date format. Please use YYYY-MM-DD.", 400)
+
+    if not connection_pool:
+        return create_error_response("Database connection not available.", 503)
+
+    conn = None
+    cursor = None
+    try:
+        conn = connection_pool.get_connection()
+        cursor = conn.cursor(dictionary=True)
+
+        query = ("SELECT main_course, side_dish, addon "
+                 "FROM menu_items WHERE menu_date = %s")
+        
+        cursor.execute(query, (menu_date_str,))
+        menu_items = cursor.fetchall()
+
+        if not menu_items:
+            return create_response("success", [], "no menu found", 200)
+        
+        return create_response("success", menu_items, "Menu retrieved successfully.", 200)
+
+    except mysql.connector.Error as err:
+        return create_error_response(f"Database error: {err}", 500)
+    except Exception as e:
+        return create_error_response(f"An unexpected error occurred: {e}", 500)
+    finally:
+        if cursor:
+            cursor.close()
+        if conn and conn.is_connected():
+            conn.close()
+
+# --- 全域錯誤處理 ---
+@app.errorhandler(404)
+def not_found(error):
+    return create_error_response("Resource not found.", 404)
+
+@app.errorhandler(405)
+def method_not_allowed(error):
+    return create_error_response("Method not allowed.", 405)
+
+# --- 啟動應用程式 ---
+if __name__ == '__main__':
+    # Zeabur 會透過 Gunicorn 啟動，這段主要用於本地測試
+    # Zeabur 會自動注入 PORT 環境變數
+    port = int(os.environ.get('PORT', 5000))
+    app.run(host='0.0.0.0', port=port, debug=False) # 正式環境 debug 應為 False