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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>TAJ HOTEL CHATBOT</title>  
    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">  
    <script src="https://code.responsivevoice.org/responsivevoice.js?key=q1DbMp6Z"></script>
    <style>  
        :root {  
            --primary-color: #007bff; /* Default blue */  
            --bot-message-bg: #f0f2f5; /* Light Gray */  
            --user-message-bg: #007bff; /* User Blue */  
            --user-message-text: #fff; /* User Message White */  
            --accent-color: #6a0dad; /* Default Purple */  
            --background-color: #fff; /* Default Background White */  
            --shadow-color: rgba(0, 0, 0, 0.2); /* Default Shadow */  
            --input-bg: #f0f2f5; /* Default Input Background */  
            --input-border: #ccc; /* Default Input Border */  
        }  

        /* Themes */  
        .theme-calm-azure {  
            --background-color: #E3F2FD;  
            --bot-message-bg: #BBDEFB;  
            --user-message-bg: #2196F3;  
            --user-message-text: #FFFFFF;  
            --input-bg: #FFFFFF;  
            --input-border: #BDBDBD;  
            --accent-color: #1976D2;  
        }  

        .theme-elegant-charcoal {  
            --background-color: #263238;  
            --bot-message-bg: #37474F;  
            --user-message-bg: #FF5722;  
            --user-message-text: #FFFFFF;  
            --input-bg: #455A64;  
            --input-border: #CFD8DC;  
            --accent-color: #FF9800;  
        }  

        .theme-fresh-greenery {  
            --background-color: #E8F5E9;  
            --bot-message-bg: #C8E6C9;  
            --user-message-bg: #4CAF50;  
            --user-message-text: #FFFFFF;  
            --input-bg: #FFFFFF;  
            --input-border: #A5D6A7;  
            --accent-color: #388E3C;  
        }  

        .theme-soft-lavender {  
            --background-color: #F3E5F5;  
            --bot-message-bg: #E1BEE7;  
            --user-message-bg: #9C27B0;  
            --user-message-text: #FFFFFF;  
            --input-bg: #FFFFFF;  
            --input-border: #D1C4E9;  
            --accent-color: #7B1FA2;  
        }  

        .theme-bright-summer {  
            --background-color: #FFEB3B;  
            --bot-message-bg: #FFF9C4;  
            --user-message-bg: #F44336;  
            --user-message-text: #FFFFFF;  
            --input-bg: #FFFFFF;  
            --input-border: #FBC02D;  
            --accent-color: #C62828;  
        }  

        * {  
            margin: 0;  
            padding: 0;  
            box-sizing: border-box;  
        }  

        body {  
            font-family: 'Roboto', sans-serif;  
            background-color: var(--background-color);  
            transition: background 0.5s ease;  
            overflow: hidden; /* Prevent scroll on body */  
        }  

        .container {  
            display: flex;  
            flex-direction: column;  
            height: 100vh;  
            width: 100%;  
            overflow: hidden; /* Prevent scroll on container */  
        }  

        /* Header */  
        .header {  
            background: var(--accent-color);  
            color: #fff;  
            font-size: 1.5rem;  
            font-weight: 700;  
            text-align: center;  
            padding: 20px;  
            box-shadow: 0 4px 8px var(--shadow-color);  
            position: relative;  
            z-index: 1000;  
        }  

        /* Chatbox */  
        .chat-box {  
            flex: 1;  
            display: flex;  
            flex-direction: column;  
            overflow-y: auto;  
            padding: 20px;  
            background: linear-gradient(to bottom right, #f5f7fa, #c3cfe2);  
            border-radius: 10px;  
            margin: 20px;  
            box-shadow: 0 4px 8px var(--shadow-color);  
            position: relative;  
            z-index: 10;  
        }  

        .message {  
            max-width: 75%;  
            padding: 12px 18px;  
            border-radius: 20px;  
            box-shadow: 0 3px 6px var(--shadow-color);  
            margin-bottom: 10px;  
            opacity: 0;  
            animation: fadeIn 0.3s forwards; /* Changed to forwards for delay effect */  
        }  

        .user-message {  
            align-self: flex-end;  
            background: var(--user-message-bg);  
            color: var(--user-message-text);  
            border-radius: 15px 20px 20px 20px;  
            animation: slideInRight 0.5s forwards; /* Sliding effect on user message */  
        }  

        .bot-message {  
            align-self: flex-start;  
            background: var(--bot-message-bg);  
            color: #333;  
            border-radius: 20px 15px 20px 20px;  
            animation: slideInLeft 0.5s forwards; /* Sliding effect on bot message */  
        }  

        /* Footer */  
        .footer {  
            background: #ffffff;  
            padding: 15px;  
            display: flex;  
            justify-content: center;  
            align-items: center;  
            box-shadow: 0 -4px 8px var(--shadow-color);  
            position: relative;  
            z-index: 1000;  
        }  

        .footer input[type="text"] {  
            width: 75%;  
            padding: 15px;  
            border: 1px solid var(--input-border);  
            border-radius: 20px;  
            margin-right: 10px;  
            box-shadow: 0 2px 4px var(--shadow-color);  
            transition: border 0.3s, box-shadow 0.3s; /* Added shadow transition */  
            background-color: var(--input-bg);  
            outline: none;  
        }  

        .footer input[type="text"]:focus {  
            border-color: var(--accent-color);  
            box-shadow: 0 0 10px var(--accent-color);  
        }  

        button {  
            background: var(--accent-color);  
            color: #fff;  
            border: none;  
            padding: 10px 20px;  
            border-radius: 20px;  
            font-size: 1rem;  
            cursor: pointer;  
            box-shadow: 0 4px 10px var(--shadow-color);  
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;  
        }  

        button:hover {  
            background: #4b0082;  
            transform: scale(1.05);  
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5); /* Shadow effect on hover */  
        }  

        /* Settings */  
        .settings {  
            display: flex;  
            justify-content: space-between;  
            align-items: center;  
            padding: 10px;  
            background: #f0f2f5;  
            box-shadow: 0 2px 5px var(--shadow-color);  
            position: relative;  
            z-index: 1000;  
        }  

        .color-picker,  
        .theme-toggle {  
            display: flex;  
            align-items: center;  
            position:relative;  
        }  

        .color-circle {  
            width: 20px;  
            height: 20px;  
            border-radius: 50%;  
            margin: 0 5px;  
            cursor: pointer;  
            box-shadow: 0 2px 5px var(--shadow-color);  
            transition: transform 0.3s; /* Adding circle hover effect */  
        }  

        .color-circle:hover {  
            transform: scale(1.2); /* Scale up on hover */  
        }  

        /* Animations */  
        @keyframes fadeIn {  
            from {  
                opacity: 0;  
                transform: translateY(20px);  
            }  

            to {  
                opacity: 1;  
                transform: translateY(0);  
            }  
        }  

        @keyframes slideInRight {  
            from {  
                opacity: 0;  
                transform: translateX(100%);  
            }  
            to {  
                opacity: 1;  
                transform: translateX(0);  
            }  
        }  

        @keyframes slideInLeft {  
            from {  
                opacity: 0;  
                transform: translateX(-100%);  
            }  
            to {  
                opacity: 1;  
                transform: translateX(0);  
            }  
        }  

        /* Background animation */  
        @keyframes backgroundAnimate {  
            0% {  
                background-color: rgba(255, 255, 255, 0.05);  
            }  
            50% {  
                background-color: rgba(255, 255, 255, 0.1);  
            }  
            100% {  
                background-color: rgba(255, 255, 255, 0.05);  
            }  
        }  

        /* VFX related styles */  
        .vfx {  
            position: absolute;  
            top: 0;  
            left: 0;  
            width: 100%;  
            height: 100%;  
            pointer-events: none;  
            animation: backgroundAnimate 5s infinite; /* Continuously animate background */  
            z-index: 0; /* Background layer */  
        }  
    </style>  
</head>  

<body>  
    <div class="vfx"></div> <!-- Background effects -->  

    <div class="container">  
        <!-- Settings -->  
        <div class="settings">  
            <div class="theme-toggle">  
                <label for="theme-select">Select Theme:</label>  
                <select id="theme-select">  
                    <option value="default">Default</option>  
                    <option value="calm-azure">Calm Azure</option>  
                    <option value="elegant-charcoal">Elegant Charcoal</option>  
                    <option value="fresh-greenery">Fresh Greenery</option>  
                    <option value="soft-lavender">Soft Lavender</option>  
                    <option value="bright-summer">Bright Summer</option>  
                </select>  
            </div>  
            <div>
              <!-- Language dropdown -->
              <label for="language-select">Select Language:</label>  
              <select id="language-select">
                  <option value="english">English</option>
                  <option value="hindi">Hindi</option>
                  <option value="bengali">Bengali</option>
                  <option value="telugu">Telugu</option>
                  <option value="marathi">Marathi</option>
                  <option value="tamil">Tamil</option>
                  <option value="gujarati">Gujarati</option>
                  <option value="kannada">Kannada</option>
                  <option value="malayalam">Malayalam</option>
                  <option value="punjabi">Punjabi</option>
                  <option value="odia">Odia</option>
                  <option value="urdu">Urdu</option>
                  <option value="assamese">Assamese</option>
                  <option value="sanskrit">Sanskrit</option>
                  <option value="arabic">Arabic</option>
                  <option value="chinese">Chinese</option>
                  <option value="dutch">Dutch</option>
                  <option value="french">French</option>
                  <option value="filipino">Filipino</option>
                  <option value="greek">Greek</option>
                  <option value="indonesian">Indonesian</option>
                  <option value="italian">Italian</option>
                  <option value="japanese">Japanese</option>
                  <option value="korean">Korean</option>
                  <option value="latin">Latin</option>
                  <option value="nepali">Nepali</option>
                  <option value="portuguese">Portuguese</option>
                  <option value="romanian">Romanian</option>
                  <option value="russian">Russian</option>
                  <option value="spanish">Spanish</option>
                  <option value="swedish">Swedish</option>
                  <option value="thai">Thai</option>
                  <option value="ukrainian">Ukrainian</option>
                  <option value="turkish">Turkish</option>
              </select>
            </div>
            <div class="color-picker">  
                <label>Accent Color:</label>  
                <div class="color-circle" style="background-color: #6a0dad;" onclick="changeColor('#6a0dad')"></div>  
                <div class="color-circle" style="background-color: #ff4500;" onclick="changeColor('#ff4500')"></div>  
                <div class="color-circle" style="background-color: #007bff;" onclick="changeColor('#007bff')"></div>  
                <div class="color-circle" style="background-color: #28a745;" onclick="changeColor('#28a745')"></div>  
            </div>  
        </div>  

        <!-- Header   -->
        <div class="header">TAJ HOTEL CHATBOT</div>  

        <!-- Chatbox -->  
        <div class="chat-box" id="chat-box"></div>  

        <!-- Footer -->  
        <div class="footer">  
          <input type="text" id="user-input" placeholder="Type your message..." />  
          <button id="send-btn">Send</button>  
          <button id="voice-btn">🎤 Start Voice Input</button>  
      
          

        </div>
       
    </div>  

    <script>  
        const chatBox = document.getElementById('chat-box');  
        const voiceBtn = document.getElementById('voice-btn');  
        const sendBtn = document.getElementById('send-btn');  
        const userInput = document.getElementById('user-input');  
        const themeSelect = document.getElementById('theme-select');  
        const languageSelect = document.getElementById('language-select');  
    
        // Add message to chatbox  
        function addMessage(sender, text) {  
            const msgDiv = document.createElement('div');  
            msgDiv.classList.add('message', sender);  
            msgDiv.textContent = text;  
            chatBox.appendChild(msgDiv);  
            chatBox.scrollTop = chatBox.scrollHeight; // Scroll to the bottom of the chat  
        }  
    
        // Initialize speech recognition  
        const recognition = new (window.SpeechRecognition || window.webkitSpeechRecognition)();  
    
        function setRecognitionLanguage() {  
            const selectedLanguage = languageSelect.value;  
            switch (selectedLanguage) {  
                case 'telugu': recognition.lang = 'te-IN'; break;  
                case 'hindi': recognition.lang = 'hi-IN'; break;  
                case 'bengali': recognition.lang = 'bn-IN'; break;  
                case 'marathi': recognition.lang = 'mr-IN'; break;  
                case 'tamil': recognition.lang = 'ta-IN'; break;  
                case 'gujarati': recognition.lang = 'gu-IN'; break;  
                case 'kannada': recognition.lang = 'kn-IN'; break;  
                case 'malayalam': recognition.lang = 'ml-IN'; break;  
                case 'punjabi': recognition.lang = 'pa-IN'; break;  
                case 'odia': recognition.lang = 'or-IN'; break;  
                case 'urdu': recognition.lang = 'ur-IN'; break;  
                case 'assamese': recognition.lang = 'as-IN'; break;  
                case 'sanskrit': recognition.lang = 'sa-IN'; break;  
                case 'arabic': recognition.lang = 'ar-SA'; break;
                case 'chinese': recognition.lang = 'zh-CN'; break;  
                case 'dutch': recognition.lang = 'nl-NL'; break;  
                case 'french': recognition.lang = 'fr-FR'; break;  
                case 'filipino': recognition.lang = 'fil-PH'; break;  
                case 'greek': recognition.lang = 'el-GR'; break;  
                case 'indonesian': recognition.lang = 'id-ID'; break;  
                case 'italian': recognition.lang = 'it-IT'; break;  
                case 'japanese': recognition.lang = 'ja-JP'; break;  
                case 'korean': recognition.lang = 'ko-KR'; break;  
                case 'latin': recognition.lang = 'la'; break;  
                case 'nepali': recognition.lang = 'ne-NP'; break;  
                case 'portuguese': recognition.lang = 'pt-PT'; break;  
                case 'romanian': recognition.lang = 'ro-RO'; break;  
                case 'russian': recognition.lang = 'ru-RU'; break;  
                case 'spanish': recognition.lang = 'es-ES'; break;  
                case 'swedish': recognition.lang = 'sv-SE'; break;  
                case 'thai': recognition.lang = 'th-TH'; break;  
                case 'ukrainian': recognition.lang = 'uk-UA'; break;  
                case 'turkish': recognition.lang = 'tr-TR'; break;  
                case 'english':  
                default: recognition.lang = 'en-US'; break; // Default to English  
            }  
        }

    
        // Event listener for voice input button  
        voiceBtn.addEventListener('click', () => {  
            setRecognitionLanguage(); // Set language  
            recognition.start(); // Start recognition  
        });  
    
        // Handle results from speech recognition  
        recognition.addEventListener('result', (e) => {  
            const transcript = e.results[0][0].transcript;  
            addMessage('user-message', transcript);  
            sendUserMessage(transcript);  
        });  
    
        // Handle errors in speech recognition  
        recognition.addEventListener('error', (event) => {  
            console.error("Speech recognition error", event);  
        });  
    
        // Change the accent color  
        function changeColor(color) {  
            document.documentElement.style.setProperty('--accent-color', color);  
        }  
    
        // Change the theme  
        function changeTheme(theme) {  
            document.documentElement.classList.remove('theme-calm-azure', 'theme-elegant-charcoal', 'theme-fresh-greenery', 'theme-soft-lavender', 'theme-bright-summer');  
            if (theme !== 'default') {  
                document.documentElement.classList.add('theme-' + theme);  
            }  
        }  
    
        // Function to send user input and selected language to backend  
        function sendUserMessage(message) {  
            const selectedLanguage = languageSelect.value; // Get the selected language  
    
            // Send the message and selected language to the backend  
            fetch('/chat', {  
                method: 'POST',  
                headers: {  
                    'Content-Type': 'application/json',  
                },  
                body: JSON.stringify({  
                    message,  
                    language: selectedLanguage, // Include the selected language in the request body  
                }),  
            })  
            .then(response => response.json())  
            .then(data => {  
                const botResponse = data.response;  
                addMessage('bot-message', botResponse);  
                speakResponse(botResponse, selectedLanguage);  
            })  
            .catch(error => {  
                console.error("Error:", error);  
                addMessage('bot-message', "Sorry, I couldn't process that.");  
            });  
        }  
    
        // // Function to get the voice list and match the language  
        // function getVoiceForLanguage(lang) {  
        //     const voices = window.speechSynthesis.getVoices();  
        //     const matchingVoice = voices.find(voice => voice.lang === lang); // Match exact language code  
        //     return matchingVoice || null; // Return first match or null if not found  
        // }  
        
        // // Text-to-Speech function  
        // function speak(text, lang) {  
        //     const utterance = new SpeechSynthesisUtterance(text);  
        //     const selectedVoice = getVoiceForLanguage(lang);  
        
        //     if (selectedVoice) {  
        //         utterance.voice = selectedVoice; // Set the matching voice  
        //         utterance.lang = lang;          // Set the language  
        //     } else {  
        //         console.warn(`No voice found for language: ${lang}. Falling back to default.`);  
        //         utterance.lang = 'en-US'; // Fallback to English  
        //     }  
        
        //     utterance.pitch = 1; // Set pitch  
        //     utterance.rate = 1;  // Set rate  
        //     window.speechSynthesis.speak(utterance); // Speak the text  
        // }  
        
        // // Language Handling Function  
        // function speakResponse(text, selectedLanguage) {  
        //     let lang;  
        //     switch (selectedLanguage) {  
        //         case 'hindi': lang = 'hi-IN'; break;  
        //         case 'bengali': lang = 'bn-IN'; break;  
        //         case 'telugu': lang = 'te-IN'; break;  
        //         case 'marathi': lang = 'mr-IN'; break;  
        //         case 'tamil': lang = 'ta-IN'; break;  
        //         case 'gujarati': lang = 'gu-IN'; break;    
        //         case 'kannada': lang = 'kn-IN'; break;  
        //         case 'malayalam': lang = 'ml-IN'; break;  
        //         case 'punjabi': lang = 'pa-IN'; break;  
        //         case 'odia': lang = 'or-IN'; break;  
        //         case 'urdu': lang = 'ur-IN'; break;  
        //         case 'assamese': lang = 'as-IN'; break;  
        //         case 'sanskrit': lang = 'sa-IN'; break;  
        //         default: lang = 'en-US'; break; // English (default)  
        //     }  
        
        //     speak(text, lang); // Call the speak function with the determined language  
        // }  
        
        // // Ensure voices are loaded before running the TTS  
        // window.speechSynthesis.onvoiceschanged = () => {  
        //     const voices = window.speechSynthesis.getVoices();  
        //     voices.forEach(voice => {  
        //         console.log(`Voice: ${voice.name}, Language: ${voice.lang}`);  
        //     });  
        // };
        // // Function to initialize and fetch voices
        // function initializeVoices() {
        //     return new Promise((resolve) => {
        //         const voices = window.speechSynthesis.getVoices();
        //         if (voices.length) {
        //             resolve(voices);
        //         } else {
        //             window.speechSynthesis.onvoiceschanged = () => {
        //                 resolve(window.speechSynthesis.getVoices());
        //             };
        //         }
        //     });
        // }
        
        // // Function to get the voice for a given language
        // function getVoiceForLanguage(lang, voices) {
        //     const voice = voices.find(voice => voice.lang === lang);
        //     if (voice) {
        //         return voice;
        //     }
        //     console.warn(`No voice found for language: ${lang}.`);
        //     return null;
        // }
        
        // // Text-to-Speech function
        // async function speak(text, lang) {
        //     const voices = await initializeVoices();
        //     const selectedVoice = getVoiceForLanguage(lang, voices);
        
        //     const utterance = new SpeechSynthesisUtterance(text);
        //     if (selectedVoice) {
        //         utterance.voice = selectedVoice;
        //         utterance.lang = selectedVoice.lang;
        //     } else {
        //         console.warn(`Falling back to default language.`);
        //         utterance.lang = 'en-US';
        //     }
        
        //     utterance.pitch = 1; // Set pitch
        //     utterance.rate = 1;  // Set rate
        //     window.speechSynthesis.speak(utterance); // Speak the text
        // }
        
        // Language Handling Function
        function speakResponse(text, selectedLanguage) {
            // Dictionary mapping specified languages to their respective voices
            const languageVoiceMap = {
                hindi: 'Hindi Female',
                tamil: 'Tamil Female',
                arabic: 'Arabic Female',
                chinese: 'Chinese Female',
                dutch: 'Dutch Female',
                french: 'French Female',
                filipino: 'Filipino Female',
                greek: 'Greek Female',
                indonesian: 'Indonesian Female',
                italian: 'Italian Female',
                japanese: 'Japanese Female',
                korean: 'Korean Female',
                portuguese: 'Portuguese Female',
                romanian: 'Romanian Female',
                russian: 'Russian Female',
                spanish: 'Spanish Female',
                swedish: 'Swedish Female',
                thai: 'Thai Female',
                ukrainian: 'Ukrainian Female',
                turkish: 'Turkish Female'
            };
        
            // Get the voice for the selected language
            const voice = languageVoiceMap[selectedLanguage.toLowerCase()];
        
            // Check if the language has a specified voice
            if (voice) {
                responsiveVoice.speak(text, voice);
            } else {
                // Use default behavior for unspecified languages
                responsiveVoice.speak(text);
            }
        }

  
        
        // // Test voices and log them
        // initializeVoices().then(voices => {
        //     console.log("Available voices:");
        //     voices.forEach(voice => console.log(`Voice: ${voice.name}, Language: ${voice.lang}`));
        // });
        // Event listeners for buttons  
        sendBtn.addEventListener('click', () => {  
            const message = userInput.value.trim();  
            if (message) {  
                addMessage('user-message', message);  
                sendUserMessage(message);  
                userInput.value = ''; // Clear input field after sending  
            }  
        });  
    
        // Handle pressing 'Enter' key for sending messages  
        userInput.addEventListener('keypress', (e) => {  
            if (e.key === 'Enter') {  
                sendBtn.click(); // Trigger button click  
            }  
        });  
    
        // Update theme when selected from dropdown  
        themeSelect.addEventListener('change', (e) => {  
            changeTheme(e.target.value);  
        }); 
    </script>
  </body>         
</html>