feat(api): added controllers for api

api/product.py

@@ -1,5 +1,84 @@
-from flask import Blueprint, request
+from flask import jsonify, request
+from db.handlers.product_handler import get_products_with_filters, get_product_by_id
+from flask import Blueprint
 
-product = Blueprint("product", __name__)
+# Создаем blueprint для API
+api_product = Blueprint('api_product', __name__, url_prefix='/api')
 
-@product.route('')
+@api_product.route('/products', methods=['GET'])
+def get_products():
+    """
+    Получение товаров с фильтрацией и пагинацией
+    GET /api/products?categoryId=1&page=1&limit=9&color=серый&size=110х2,2х500
+    """
+    try:
+        # Получаем обязательный параметр categoryId
+        category_id = request.args.get('categoryId', type=int)
+        if not category_id:
+            return jsonify({"error": "categoryId is required"}), 400
+        
+        # Получаем параметры пагинации
+        page = request.args.get('page', 1, type=int)
+        limit = request.args.get('limit', 9, type=int)
+        
+        # Валидация параметров
+        if page < 1:
+            page = 1
+        if limit < 1 or limit > 100:
+            limit = 9
+        
+        # Собираем фильтры из query параметров
+        filters = {}
+        excluded_params = ['categoryId', 'page', 'limit']
+        
+        for key, value in request.args.items():
+            if key not in excluded_params:
+                if ',' in value:
+                    filters[key] = value.split(',')
+                else:
+                    filters[key] = value
+        
+        # Получаем товары
+        result = get_products_with_filters(
+            category_id=category_id,
+            page=page,
+            limit=limit,
+            filters=filters if filters else None
+        )
+        
+        return jsonify(result), 200
+        
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500
+
+@api_product.route('/products/<int:product_id>', methods=['GET'])
+def get_product(product_id):
+    """
+    Получение товара по ID
+    GET /api/products/{id}
+    """
+    try:
+        product = get_product_by_id(product_id)
+        if product:
+            return jsonify(product), 200
+        return jsonify({"error": "Product not found"}), 404
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500
+
+@api_product.route('/products/fetchById', methods=['GET'])
+def get_product_by_id_param():
+    """
+    Альтернативный маршрут для получения товара через query параметр
+    GET /api/products/fetchById?id=101
+    """
+    try:
+        product_id = request.args.get('id', type=int)
+        if not product_id:
+            return jsonify({"error": "id parameter is required"}), 400
+        
+        product = get_product_by_id(product_id)
+        if product:
+            return jsonify(product), 200
+        return jsonify({"error": "Product not found"}), 404
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500