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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">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css">
<style>
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f4f7fb;
margin: 0;
padding: 0;
}
#chat-container {
max-width: 500px;
margin: auto;
padding: 25px;
border-radius: 15px;
background-color: #fff;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
position: relative;
}
#chat-history {
height: 400px;
overflow-y: auto;
padding: 15px;
background: linear-gradient(135deg, #f3f4f8 0%, #d3e0f0 100%);
border-radius: 15px;
box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.1);
margin-bottom: 15px;
}
.message {
padding: 12px 15px;
margin: 10px 0;
border-radius: 20px;
font-size: 0.9em;
line-height: 1.4em;
position: relative;
}
.user-message {
background: linear-gradient(135deg, #c9e6f5 0%, #91c9e6 100%);
color: #006c8e;
margin-left: auto;
border-radius: 20px 20px 0 20px;
}
.bot-message {
background: linear-gradient(135deg, #fce0e0 0%, #85cfb6 100%);
color: #8b3e40;
margin-right: auto;
border-radius: 20px 20px 20px 0;
}
.user-icon, .bot-icon {
margin-right: 10px;
font-size: 1.2em;
}
#user-input {
border: 1px solid #ddd;
border-radius: 8px;
resize: none;
padding: 12px;
font-size: 1em;
width: calc(10% - 48px);
}
#user-input:focus {
border-color: #007bff;
outline: none;
}
.btn-send, .btn-mic {
background-color: #007bff;
color: white;
border-radius: 8px;
padding: 10px 15px;
border: none;
cursor: pointer;
font-size: 1.1em;
transition: background-color 0.3s;
}
.btn-send:hover, .btn-mic:hover {
background-color: #0056b3;
}
#language-selector {
margin-bottom: 10px;
}
</style>
<title>Multilanguage Voice Chatbot</title>
</head>
<body>
<div id="chat-container">
<select id="language-selector" class="form-control">
<option value="en-US" selected>English</option>
<option value="hi-IN">Hindi</option>
<option value="es-ES">Spanish</option>
<option value="fr-FR">French</option>
<option value="te-IN">Telugu</option>
</select>
<div id="chat-history"></div>
<div class="input-group">
<textarea id="user-input" class="form-control" rows="1" placeholder="Type or speak your message..." aria-label="Message input"></textarea>
<button id="mic-button" class="btn-mic"><i class="fas fa-microphone"></i></button>
<button id="send-button" class="btn-send"><i class="fas fa-paper-plane"></i></button>
</div>
</div>
<script>
const chatHistoryArray = [];
let currentLanguage = "en-US"; // Default language
// Handle language selection
document.getElementById("language-selector").addEventListener("change", (event) => {
currentLanguage = event.target.value;
});
// Add message to chat history
function addMessage(sender, message, className) {
const chatHistory = document.getElementById("chat-history");
const messageElement = document.createElement("div");
messageElement.className = `message ${className}`;
messageElement.innerHTML = `<strong>${sender}:</strong> ${message}`;
chatHistory.appendChild(messageElement);
chatHistory.scrollTop = chatHistory.scrollHeight;
}
// Send message to server
async function sendMessage() {
const input = document.getElementById("user-input");
const message = input.value.trim();
if (!message) return;
addMessage("User", message, "user-message");
chatHistoryArray.push({ sender: "User", message });
input.value = "";
// Simulate bot typing
const botTyping = document.createElement("div");
botTyping.className = "typing-indicator";
botTyping.textContent = "Bot is typing...";
document.getElementById("chat-history").appendChild(botTyping);
try {
const response = await fetch("/chat/", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ message, language: currentLanguage })
});
const data = await response.json();
botTyping.remove();
const botMessage = data.response;
addMessage("Bot", botMessage, "bot-message");
chatHistoryArray.push({ sender: "Bot", message: botMessage });
if (data.audioUrl) {
playAudio(data.audioUrl);
}
} catch (error) {
botTyping.remove();
console.error("Error:", error);
const errorMessage = "Sorry, something went wrong.";
addMessage("Bot", errorMessage, "bot-message");
}
}
// Play audio from gTTS
// Play audio from server response
function playAudio(url) {
if (!url) {
console.error("Audio URL is missing.");
addMessage("Bot", "Error: Unable to play audio.", "bot-message");
return;
}
const audio = new Audio(url);
audio.onerror = () => {
console.error("Error loading audio:", url);
addMessage("Bot", "Error: Unable to load audio.", "bot-message");
};
audio.onplay = () => {
console.log("Playing audio:", url);
};
audio.play().catch((error) => {
console.error("Error during audio playback:", error);
addMessage("Bot", "Error: Unable to play audio.", "bot-message");
});
}
// Speech-to-Text function
function startListening() {
let recognition;
if (window.SpeechRecognition || window.webkitSpeechRecognition) {
recognition = new (window.SpeechRecognition || window.webkitSpeechRecognition)();
} else {
alert("Your browser does not support speech recognition.");
return;
}
recognition.lang = currentLanguage;
recognition.interimResults = false;
recognition.onresult = (event) => {
const transcript = event.results[0][0].transcript;
document.getElementById("user-input").value = transcript;
sendMessage();
};
recognition.onerror = (event) => {
console.error("Speech recognition error:", event.error);
let errorMessage = "Sorry, I couldn't understand you.";
if (event.error === "not-allowed") {
errorMessage = "Microphone access is blocked. Please allow access.";
} else if (event.error === "network") {
errorMessage = "Network error. Please check your connection.";
}
addMessage("Bot", errorMessage, "bot-message");
};
recognition.start();
}
// Event Listeners
document.getElementById("send-button").addEventListener("click", sendMessage);
document.getElementById("mic-button").addEventListener("click", startListening);
</script>
</body>
</html>
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