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<!-- templates/index.html -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>MedChat - Your Second Opinion</title>
<style>
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
margin: 0;
padding: 0;
background: linear-gradient(135deg, #e0f7fa, #80deea);
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
.container {
width: 90%;
max-width: 600px;
background: #fff;
border-radius: 15px;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
overflow: hidden;
}
.header {
background: #0288d1;
color: white;
padding: 15px;
text-align: center;
font-size: 24px;
}
.chat-box {
height: 400px;
overflow-y: auto;
padding: 20px;
background: #f5f5f5;
}
.message {
margin: 10px 0;
padding: 10px 15px;
border-radius: 10px;
max-width: 80%;
word-wrap: break-word;
}
.user-message {
background: #0288d1;
color: white;
margin-left: auto;
text-align: right;
}
.bot-message {
background: #e0e0e0;
color: #333;
}
.input-area {
display: flex;
padding: 15px;
border-top: 1px solid #ddd;
background: #fff;
}
.input-area input {
flex: 1;
padding: 10px;
border: 1px solid #ccc;
border-radius: 5px 0 0 5px;
outline: none;
}
.input-area button {
padding: 10px 20px;
background: #0288d1;
color: white;
border: none;
border-radius: 0 5px 5px 0;
cursor: pointer;
transition: background 0.3s;
}
.input-area button:hover {
background: #0277bd;
}
</style>
</head>
<body>
<div class="container">
<div class="header">MedChat - Your Second Opinion</div>
<div class="chat-box" id="chatBox"></div>
<div class="input-area">
<input type="text" id="userInput" placeholder="Ask about medications or studies...">
<button onclick="sendMessage()">Send</button>
</div>
</div>
<script>
const chatBox = document.getElementById("chatBox");
const userInput = document.getElementById("userInput");
function addMessage(text, isUser) {
const msgDiv = document.createElement("div");
msgDiv.className = `message ${isUser ? "user-message" : "bot-message"}`;
msgDiv.textContent = text; // Use textContent for streaming
chatBox.appendChild(msgDiv);
chatBox.scrollTop = chatBox.scrollHeight;
}
async function sendMessage() {
const message = userInput.value.trim();
if (!message) return;
addMessage(message, true);
userInput.value = "";
try {
// Send POST request to /chat with message in body
const postResponse = await fetch('/chat', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ message: message })
});
if (!postResponse.ok) {
throw new Error(`HTTP error! status: ${postResponse.status}`);
}
// Stream response using the response body (SSE)
const reader = postResponse.body.getReader();
const decoder = new TextDecoder();
let botResponse = "";
function readStream() {
reader.read().then(({ done, value }) => {
if (done) {
addMessage(botResponse, false);
return;
}
const text = decoder.decode(value);
const lines = text.split('\n');
for (const line of lines) {
if (line.startsWith('data: ')) {
const data = line.replace('data: ', '');
if (data === '[END]') {
reader.cancel();
addMessage(botResponse, false);
return;
} else {
botResponse += data;
// Update chat box incrementally for streaming
const lastBotMsg = chatBox.lastElementChild;
if (lastBotMsg && lastBotMsg.className.includes("bot-message")) {
lastBotMsg.textContent = botResponse;
}
}
}
}
readStream();
}).catch(error => {
addMessage(`Error: Could not connect to server. Details: ${error.message}`, false);
});
}
readStream();
} catch (error) {
addMessage(`Error: Could not connect to server. Details: {error.message}`, false);
}
}
userInput.addEventListener("keypress", (e) => {
if (e.key === "Enter") sendMessage();
});
</script>
</body>
</html> |