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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Biryani Hub Menu</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f8f8f8;
            text-align: center;
            margin: 0;
            padding: 20px;
        }
        h1 {
            color: #ff5722;
        }
        .menu-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 20px;
        }
        .menu-item {
            background: white;
            padding: 15px;
            margin: 10px;
            border-radius: 8px;
            box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
            width: 300px;
            text-align: left;
        }
        .menu-item h3 {
            margin: 0;
            color: #333;
        }
        .menu-item p {
            margin: 5px 0;
            color: #555;
        }
        .menu-item button {
            background-color: #ff5722;
            color: white;
            border: none;
            padding: 8px;
            cursor: pointer;
            width: 100%;
            border-radius: 5px;
        }
        .menu-item button:hover {
            background-color: #e64a19;
        }
        .cart-container {
            margin-top: 20px;
            padding: 15px;
            background-color: white;
            border: 1px solid #ddd;
            border-radius: 5px;
            width: 50%;
            margin-left: auto;
            margin-right: auto;
            display: none;
        }
        .cart-item {
            display: flex;
            justify-content: space-between;
            padding: 5px;
            border-bottom: 1px solid #ddd;
        }
        .cart-item:last-child {
            border-bottom: none;
        }
        .filter-buttons {
            margin: 15px;
        }
        .filter-buttons button {
            margin: 5px;
            padding: 10px;
            border: none;
            cursor: pointer;
            border-radius: 5px;
            background-color: #007bff;
            color: white;
        }
        .filter-buttons button:hover {
            background-color: #0056b3;
        }
    </style>
</head>
<body>

    <h1>Restaurant Menu</h1>

    <!-- Buttons for filtering menu -->
    <div class="filter-buttons">
        <button onclick="filterMenu('veg')">Vegetarian</button>
        <button onclick="filterMenu('non-veg')">Non-Vegetarian</button>
    </div>

    <!-- Menu Display -->
    <div class="menu-container" id="menu-list">
        {% for item in menu %}
        <div class="menu-item" data-category="{{ item.category }}">
            <h3>{{ item.name }}</h3>
            <p><strong>Category:</strong> {{ item.category }}</p>
            <p><strong>Price:</strong> ${{ item.price }}</p>
            <p><strong>Ingredients:</strong> {{ item.ingredients }}</p>
            <button onclick="addToCart('{{ item.name }}', {{ item.price }})">Add to Cart</button>
        </div>
        {% endfor %}
    </div>

    <!-- Cart Section -->
    <div class="cart-container" id="cart-container">
        <h2>Your Cart</h2>
        <div id="cart-items"></div>
        <button onclick="checkout()">Checkout</button>
    </div>

    <!-- View Cart Button -->
    <button onclick="viewCart()">View Cart</button>

    <script>
        // ✅ Speech Synthesis - Welcome message
        function speak(text, callback) {
            const msg = new SpeechSynthesisUtterance(text);
            msg.onend = callback;
            window.speechSynthesis.speak(msg);
        }

        // ✅ Ask user Veg or Non-Veg
        function askMenuType() {
            speak("Welcome to Biryani Hub Menu. Would you like to see Vegetarian or Non-Vegetarian options?", function() {
                startListening();
            });
        }

        // ✅ Speech Recognition (User says Veg or Non-Veg)
        function startListening() {
            const recognition = new (window.SpeechRecognition || window.webkitSpeechRecognition)();
            recognition.lang = "en-US";
            recognition.start();

            recognition.onresult = function(event) {
                const command = event.results[0][0].transcript.toLowerCase();
                if (command.includes("vegetarian") || command.includes("veg")) {
                    filterMenu("veg");
                    speak("Here are the vegetarian items.");
                } else if (command.includes("non-vegetarian") || command.includes("non veg")) {
                    filterMenu("non-veg");
                    speak("Here are the non-vegetarian items.");
                } else {
                    speak("Sorry, I didn't understand. Please say Vegetarian or Non-Vegetarian.", function() {
                        startListening();
                    });
                }
            };
        }

        // ✅ Function to filter menu by category
        function filterMenu(type) {
            const allItems = document.querySelectorAll('.menu-item');
            allItems.forEach(item => {
                if (type === "veg" && item.dataset.category.toLowerCase().includes("veg")) {
                    item.style.display = "block";
                } else if (type === "non-veg" && item.dataset.category.toLowerCase().includes("chicken") || item.dataset.category.toLowerCase().includes("mutton") || item.dataset.category.toLowerCase().includes("fish") || item.dataset.category.toLowerCase().includes("prawn")) {
                    item.style.display = "block";
                } else {
                    item.style.display = "none";
                }
            });
        }

        // ✅ Welcome Message on Page Load
        window.onload = askMenuType;
    </script>

</body>
</html>