Update app.py

app.py

@@ -11,7 +11,7 @@ app = Flask(__name__)
 logging.basicConfig(level=logging.INFO)
 
 # Global variables
-cart = {}  # Stores items and their quantities in the cart
+cart = []  # Stores items as [item_name, price, quantity] in the cart
 menu_preferences = "all"  # Tracks the current menu preference
 default_menu_preferences = "all"  # To reset menu preferences
 prices = {
@@ -47,7 +47,7 @@ def index():
 @app.route("/reset-cart", methods=["GET"])
 def reset_cart():
     global cart, menu_preferences
-    cart = {}
+    cart = []
     menu_preferences = default_menu_preferences  # Reset menu preferences
     return "Cart reset successfully."
 
@@ -144,76 +144,64 @@ def process_command(command):
         menu_preferences = "all"
         return "You have chosen the complete menu. To view the menu, say 'menu'."
 
-    # Split command into potential action and item
-    words = command.split()
-    if len(words) > 1:
-        action = words[0]  # First word as action
-        item_name = " ".join(words[1:])  # Remaining words as item name
-    else:
-        action = command
-        item_name = ""
-
-    # Handle specific actions like "remove" or "price"
-    if action == "remove":
-        return handle_remove(item_name)
-    if action == "price":
-        return handle_price(item_name)
-
-    # Check if command matches an item name in the menu
+    # Handle commands related to the current menu
     menu = menus.get(menu_preferences, menus["all"])
-    closest_match = process.extractOne(command, menu, scorer=fuzz.token_set_ratio)
-    if closest_match and closest_match[1] > 60:
-        matched_item = closest_match[0]
-        cart[matched_item] = cart.get(matched_item, 0) + 1
-        return f"{matched_item.capitalize()} added to your cart. Current cart: {dict(cart)}. To finalize, say 'final order'."
 
-    # Prompt user if action is unclear
-    if action not in ["menu", "final order", "goodbye"]:
-        return "Sorry, I didn't understand your action. Did you mean to add, remove, or check the price of an item?"
+    if "price of" in command:
+        item = command.replace("price of", "").strip()
+        closest_match = process.extractOne(item, prices.keys(), scorer=fuzz.token_set_ratio)
+        if closest_match and closest_match[1] > 60:
+            matched_item = closest_match[0]
+            return f"The price of {matched_item} is ${prices[matched_item]}."
+        return "Sorry, I couldn't find that item in the menu."
 
-    # Generic menu or cart commands
-    if action == "menu":
-        menu = menus.get(menu_preferences, menus["all"])
+    if "menu" in command:
         return f"Here is your menu: {', '.join(menu)}. To select an item, say the item name."
-    if action == "final order":
-        return finalize_order()
-    if action == "goodbye":
-        cart.clear()
-        menu_preferences = default_menu_preferences
-        return "Goodbye! Thank you for using AI Dining Assistant."
 
-    return "Sorry, I couldn't understand that. Please try again."
+    if "remove" in command:
+        for item in cart:
+            if item[0].lower() in command:
+                cart.remove(item)
+                total = sum(i[1] * i[2] for i in cart)
+                cart_summary = ", ".join([f"{i[0]} x{i[2]} (₹{i[1] * i[2]})" for i in cart])
+                return f"Removed {item[0]} from your cart. Updated cart: {cart_summary}. Total: ₹{total}."
+        return "The item you are trying to remove is not in your cart."
 
-def handle_remove(item_name):
-    if not item_name:
-        return "Please specify the item to remove."
-    closest_match = process.extractOne(item_name, list(cart.keys()), scorer=fuzz.token_set_ratio)
-    if closest_match and closest_match[1] > 60:
-        matched_item = closest_match[0]
-        if cart[matched_item] > 1:
-            cart[matched_item] -= 1
-            return f"One {matched_item} has been removed. Current cart: {dict(cart)}."
-        else:
-            del cart[matched_item]
-            return f"{matched_item.capitalize()} has been completely removed from your cart."
-    return "Sorry, that item is not in your cart."
+    if "clear cart" in command or "empty cart" in command:
+        if cart:
+            cart.clear()
+            return "Your cart has been cleared."
+        return "Your cart is already empty."
 
-def handle_price(item_name):
-    if not item_name:
-        return "Please specify the item to check the price."
-    closest_match = process.extractOne(item_name, prices.keys(), scorer=fuzz.token_set_ratio)
-    if closest_match and closest_match[1] > 60:
-        matched_item = closest_match[0]
-        return f"The price of {matched_item} is ${prices[matched_item]}."
-    return "Sorry, I couldn't find that item in the menu."
+    if any(item in command for item in menu):
+        closest_match = process.extractOne(command, menu, scorer=fuzz.token_set_ratio)
+        if closest_match and closest_match[1] > 60:
+            matched_item = closest_match[0]
+            for cart_item in cart:
+                if cart_item[0] == matched_item:
+                    cart_item[2] += 1
+                    break
+            else:
+                cart.append([matched_item, prices[matched_item], 1])
+            cart_summary = ", ".join([f"{i[0]} x{i[2]} (₹{i[1] * i[2]})" for i in cart])
+            total = sum(i[1] * i[2] for i in cart)
+            return f"{matched_item.capitalize()} added to your cart. Current cart: {cart_summary}. Total: ₹{total}."
+        return "Sorry, I couldn't recognize the item. Could you try again."
+
+    if "final order" in command:
+        if cart:
+            total = sum(i[1] * i[2] for i in cart)
+            response = f"Your final order is: {', '.join(f'{i[0]} x{i[2]} (₹{i[1] * i[2]})' for i in cart)}. Total bill: ₹{total}. Thank you for ordering! To exit this conversation, say 'goodbye'."
+            cart.clear()
+            return response
+        return "Your cart is empty. Please add items to your cart first."
 
-def finalize_order():
-    if cart:
-        total = sum(prices[item] * count for item, count in cart.items())
-        response = f"Your final order is: {', '.join(f'{item} x{count}' for item, count in cart.items())}. Your total bill is ${total}. Thank you for ordering! To exit this conversation, say 'goodbye'."
+    if "goodbye" in command:
         cart.clear()
-        return response
-    return "Your cart is empty. Please add items to your cart first."
+        menu_preferences = default_menu_preferences
+        return "Goodbye! Thank you for using AI Dining Assistant."
+
+    return "Sorry, I couldn't understand that. Please try again."
 
 html_code = """
 <!DOCTYPE html>
@@ -313,12 +301,23 @@ html_code = """
                             if (data.response.includes("Goodbye")) {
                                 status.textContent = 'Conversation ended. Press the mic button to start again.';
                                 isConversationActive = false;
-                                fetch('/reset-cart');
+                                fetch('/reset-cart'); // Reset the cart dynamically on end
+                            } else if (data.response.includes("Your order is complete")) {
+                                status.textContent = 'Order complete. Thank you for using AI Dining Assistant.';
+                                isConversationActive = false;
+                                fetch('/reset-cart'); // Reset the cart after final order
                             } else {
                                 status.textContent = 'Listening...';
-                                setTimeout(() => startListening(), 100);
+                                setTimeout(() => {
+                                    startListening();
+                                }, 100);
                             }
                         };
+                        utterance.onerror = (e) => {
+                            console.error("Speech synthesis error:", e.error);
+                            status.textContent = 'Error with speech output.';
+                            isConversationActive = false;
+                        };
                     } catch (error) {
                         response.textContent = 'Sorry, I could not understand. Please try again.';
                         response.style.display = 'block';