/*
    Project: Healthcare Assistant Bot
    Author: Molla Samser
    Author's Email: info@rskworld.com
    Author's Phone: +91 93305 39277
    Author's Website: https://rskworld.in
    Year: 2026
*/

document.addEventListener('DOMContentLoaded', () => {
    const chatBox = document.getElementById('chat-box');
    const userInput = document.getElementById('user-input');
    const sendBtn = document.getElementById('send-btn');

    sendBtn.addEventListener('click', sendMessage);
    userInput.addEventListener('keypress', (e) => {
        if (e.key === 'Enter') {
            sendMessage();
        }
    });

    function sendMessage() {
        const userMessage = userInput.value;
        if (userMessage.trim() === '') {
            return;
        }

        appendMessage('user', userMessage);
        userInput.value = '';

        fetch('/chat', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({ message: userMessage }),
        })
        .then(response => response.json())
        .then(data => {
            appendMessage('bot', data.response);
        })
        .catch(error => {
            console.error('Error:', error);
        });
    }

    function appendMessage(sender, message) {
        const messageElement = document.createElement('div');
        messageElement.classList.add('chat-message', sender === 'user' ? 'user-message' : 'bot-message');
        
        const p = document.createElement('p');
        p.textContent = message;
        messageElement.appendChild(p);
        
        chatBox.appendChild(messageElement);
        chatBox.scrollTop = chatBox.scrollHeight;
    }
});