Cart_Page.py

from flask import Blueprint, render_template, request, redirect, url_for, session
from salesforce import get_salesforce_connection  # Import the function to get Salesforce connection


# Create a Blueprint for the menu page
cart_page = Blueprint('cart_page', __name__)
print("Cart page is connected")

# Initialize Salesforce connection in Menu_page.py
sf = get_salesforce_connection()

@cart_page.route("/cart", methods=["GET"])
def cart():
    email = session.get('user_email')
    if not email:
        return redirect(url_for("login"))

    try:
        # Fetch cart items with Category and Section
        result = sf.query(f"""
            SELECT Name, Price__c, Quantity__c, Add_Ons__c, Add_Ons_Price__c, Image1__c, Instructions__c, Category__c, Section__c
            FROM Cart_Item__c
            WHERE Customer_Email__c = '{email}'
        """)
        cart_items = result.get("records", [])

        subtotal = sum(item['Price__c'] for item in cart_items)

        # Fetch reward points
        customer_result = sf.query(f"""
            SELECT Reward_Points__c 
            FROM Customer_Login__c
            WHERE Email__c = '{email}'
        """)
        reward_points = customer_result['records'][0].get('Reward_Points__c', 0) if customer_result['records'] else 0

        # Fetch coupons for the user
        coupon_result = sf.query(f"""
            SELECT Coupon_Code__c FROM Referral_Coupon__c WHERE Referral_Email__c = '{email}'
        """)
        if coupon_result["records"]:
            raw_coupons = coupon_result["records"][0].get("Coupon_Code__c", "")
            coupons = raw_coupons.split("\n") if raw_coupons else []
        else:
            coupons = []

        # Initialize suggestions as an empty list
        suggestions = []

        # If there are items in the cart, fetch suggestions
        if cart_items:
            # Get the category and section of the first item in the cart (You can choose which item you want to base suggestions on)
            first_item = cart_items[0]
            item_category = first_item.get('Category__c', 'All')  # Default to 'All' if not found
            item_section = first_item.get('Section__c', 'Biryanis')  # Default to 'Biryanis' if not found

            # Define section-to-complementary section mapping
            complementary_sections = {
                'Breads': ['Curries', 'Biryanis', 'Starters'],
                'Biryanis': ['Curries', 'Starters', 'Desserts'],
                'Curries': ['Biryanis', 'Breads', 'Starters'],
                'Starters': ['Biryanis', 'Curries', 'Desserts'],
                'Desserts': ['Biryanis', 'Curries', 'Soft Drinks'],
                'Soft Drinks': ['Starters', 'Biryanis', 'Curries']
            }

            # Get the complementary sections for the selected section
            suggested_sections = complementary_sections.get(item_section, [])

            # Fetch suggestions from the complementary sections
            try:
                for suggested_section in suggested_sections:
                    if item_category == "All":
                        query = f"""
                            SELECT Name, Price__c, Image1__c
                            FROM Menu_Item__c
                            WHERE Section__c = '{suggested_section}' 
                            AND (Veg_NonVeg__c = 'Veg' OR Veg_NonVeg__c = 'Non veg')
                            LIMIT 4
                        """
                    else:
                        query = f"""
                            SELECT Name, Price__c, Image1__c
                            FROM Menu_Item__c
                            WHERE Section__c = '{suggested_section}' 
                            AND Veg_NonVeg__c = '{item_category}'
                            LIMIT 4
                        """
                    suggestion_result = sf.query(query)
                    suggestions.extend(suggestion_result.get("records", []))  # Add suggestions from each section

                # Limit the number of suggestions to 4
                if len(suggestions) > 4:
                    suggestions = suggestions[:4]

            except Exception as e:
                print(f"Error fetching suggestions: {e}")

        return render_template(
            "cart.html",
            cart_items=cart_items,
            subtotal=subtotal,
            reward_points=reward_points,
            customer_email=email,
            coupons=coupons,
            suggestions=suggestions
        )

    except Exception as e:
        print(f"Error fetching cart items: {e}")
        return render_template("cart.html", cart_items=[], subtotal=0, reward_points=0, coupons=[], suggestions=[])



@cart_page.route("/cart/add_suggestion_to_cart", methods=["POST"])
def add_suggestion_to_cart():
    try:
        # Get data from the request
        data = request.get_json()
        item_name = data.get('item_name').strip()
        item_price = data.get('item_price')
        item_image = data.get('item_image')
        item_id = data.get('item_id')
        customer_email = data.get('customer_email')
        addons = data.get('addons', [])
        instructions = data.get('instructions', "")

        # Default values if addons and instructions are not provided
        addons_price = 0
        addons_string = "None"

        # Check if the customer already has this item in their cart
        query = f"""
            SELECT Id, Quantity__c, Add_Ons__c, Add_Ons_Price__c, Instructions__c 
            FROM Cart_Item__c
            WHERE Customer_Email__c = '{customer_email}' AND Name = '{item_name}'
        """
        result = sf.query(query)
        cart_items = result.get("records", [])

        # If item already exists in the cart, update its quantity and other details
        if cart_items:
            cart_item_id = cart_items[0]['Id']
            existing_quantity = cart_items[0]['Quantity__c']
            existing_addons = cart_items[0].get('Add_Ons__c', "None")
            existing_addons_price = cart_items[0].get('Add_Ons_Price__c', 0)
            existing_instructions = cart_items[0].get('Instructions__c', "")

            # Combine existing and new addons
            combined_addons = existing_addons if existing_addons != "None" else ""
            if addons:
                combined_addons = f"{combined_addons}; {addons}".strip("; ")

            combined_instructions = existing_instructions
            if instructions:
                combined_instructions = f"{combined_instructions} | {instructions}".strip(" | ")

            combined_addons_list = combined_addons.split("; ")
            combined_addons_price = sum(
                float(addon.split("($")[1][:-1]) for addon in combined_addons_list if "($" in addon
            )

            # Update the cart item
            sf.Cart_Item__c.update(cart_item_id, {
                "Quantity__c": existing_quantity + 1,
                "Add_Ons__c": combined_addons,
                "Add_Ons_Price__c": combined_addons_price,
                "Instructions__c": combined_instructions,
                "Price__c": (existing_quantity + 1) * float(item_price) + combined_addons_price
            })
        else:
            # If item doesn't exist in cart, create a new cart item
            total_price = float(item_price) + addons_price

            # Create a new cart item in Salesforce
            sf.Cart_Item__c.create({
                "Name": item_name,
                "Price__c": total_price,
                "Base_Price__c": item_price,
                "Quantity__c": 1,
                "Add_Ons_Price__c": addons_price,
                "Add_Ons__c": addons_string,
                "Image1__c": item_image,
                "Customer_Email__c": customer_email,
                "Instructions__c": instructions
            })

        return jsonify({"success": True, "message": "Item added to cart successfully."})

    except Exception as e:
        print(f"Error adding item to cart: {str(e)}")
        return jsonify({"success": False, "error": str(e)})



@cart_page.route("/cart/add_item", methods=["POST"])
def add_item_to_cart():
    data = request.json  # Extract JSON data from the request
    email = data.get('email')  # Customer email
    item_name = data.get('item_name')  # Item name
    quantity = data.get('quantity', 1)  # Quantity to add (default is 1)
    addons = data.get('addons', [])  # Add-ons for the item (optional)

    # Validate inputs
    if not email or not item_name:
        return jsonify({"success": False, "error": "Email and item name are required."}), 400

    try:
        # Add a new item to the cart with the provided details
        sf.Cart_Item__c.create({
            "Customer_Email__c": email,  # Associate the cart item with the customer's email
            "Item_Name__c": item_name,  # Item name
            "Quantity__c": quantity,  # Quantity to add
            "Add_Ons__c": addons_string
        })

        return jsonify({"success": True, "message": "Item added to cart successfully."})
    except Exception as e:
        print(f"Error adding item to cart: {str(e)}")  # Log the error for debugging
        return jsonify({"success": False, "error": str(e)}), 500



@cart_page.route('/cart/remove/<item_name>', methods=['POST'])
def remove_cart_item(item_name):
    try:
        customer_email = session.get('user_email')
        if not customer_email:
            return jsonify({'success': False, 'message': 'User email not found. Please log in again.'}), 400
        query = f"""
            SELECT Id FROM Cart_Item__c 
            WHERE Customer_Email__c = '{customer_email}' AND Name = '{item_name}'
        """
        result = sf.query(query)
        if result['totalSize'] == 0:
            return jsonify({'success': False, 'message': 'Item not found in cart.'}), 400
        cart_item_id = result['records'][0]['Id']
        sf.Cart_Item__c.delete(cart_item_id)
        return jsonify({'success': True, 'message': f"'{item_name}' removed successfully!"}), 200
    except Exception as e:
        print(f"Error: {str(e)}")
        return jsonify({'success': False, 'message': f"An error occurred: {str(e)}"}), 500


@cart_page.route("/cart/update_quantity", methods=["POST"])
def update_quantity():
    data = request.json  # Extract JSON data from the request
    email = data.get('email')
    item_name = data.get('item_name')
    try:
        # Convert quantity to an integer
        quantity = int(data.get('quantity'))
    except (ValueError, TypeError):
        return jsonify({"success": False, "error": "Invalid quantity provided."}), 400

    # Validate inputs
    if not email or not item_name or quantity is None:
        return jsonify({"success": False, "error": "Email, item name, and quantity are required."}), 400

    try:
        # Query the cart item in Salesforce
        cart_items = sf.query(
            f"SELECT Id, Quantity__c, Price__c, Base_Price__c, Add_Ons_Price__c FROM Cart_Item__c "
            f"WHERE Customer_Email__c = '{email}' AND Name = '{item_name}'"
        )['records']

        if not cart_items:
            return jsonify({"success": False, "error": "Cart item not found."}), 404

        # Retrieve the first matching record
        cart_item_id = cart_items[0]['Id']
        base_price = cart_items[0]['Base_Price__c']
        addons_price = cart_items[0].get('Add_Ons_Price__c', 0)

        # Calculate the new item price
        new_item_price = (base_price * quantity) + addons_price

        # Update the record in Salesforce
        sf.Cart_Item__c.update(cart_item_id, {
            "Quantity__c": quantity,
            "Price__c": new_item_price,  # Update base price
        })

        # Recalculate the subtotal for all items in the cart
        cart_items = sf.query(f"""
            SELECT Price__c, Add_Ons_Price__c 
            FROM Cart_Item__c 
            WHERE Customer_Email__c = '{email}'
        """)['records']
        new_subtotal = sum(item['Price__c'] for item in cart_items) 

        # Return updated item price and subtotal
        return jsonify({"success": True, "new_item_price": new_item_price, "subtotal": new_subtotal})
        print(f"New item price: {new_item_price}, New subtotal: {new_subtotal}")
        return jsonify({"success": True, "new_item_price": new_item_price, "subtotal": new_subtotal})

    except Exception as e:
        print(f"Error updating quantity: {str(e)}")
        return jsonify({"success": False, "error": str(e)}), 500