CS4990-Chatbot/demo.html at main · du2333/CS4990-Chatbot · GitHub

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<!DOCTYPE html>
<html>

<head>
    <title>Demo chat</title>

    <style>
        #message-window {
            width: 1000px;
            height: 600px;
            border: 1px solid #ccc;
            padding: 10px;
            margin-bottom: 10px;
            overflow-y: scroll;
        }

        #message-input {
            width: 800px;
            margin-bottom: 10px;
        }
    </style>
</head>

<body>
    <div id="auth">
        <input id="register-user-id" type="text" placeholder="User ID for registration">
        <input id="register-password" type="password" placeholder="Password for registration">
        <button onclick="register(event)">Register</button>

        <input id="login-user-id" type="text" placeholder="User ID for login">
        <input id="login-password" type="password" placeholder="Password for login">
        <button onclick="login(event)">Login</button>
    </div>


    <div id="message-window"></div>
    <input id="message-input" type="text" placeholder="Type your message here...">
    <button onclick="submitForm(event)">Send</button>

    <button onclick="newConversation(event)" id="new-conversation-button">New Conversation</button>
    <div id="conversation-list"></div>

    <script>
        function register(event) {
            event.preventDefault();
            var userId = document.getElementById('register-user-id').value;
            var password = document.getElementById('register-password').value;

            fetch('http://ec2-18-224-51-247.us-east-2.compute.amazonaws.com:8000/register', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({ user_id: userId, password })
            })
                .then(response => {
                    if (!response.ok) {
                        throw new Error(`HTTP error! status: ${response.status}`);
                    }
                    return response.json();
                })
                .then(data => {
                    alert('Registration successful');
                    console.log(data)
                })
                .catch((error) => {
                    console.error('Error:', error);
                    alert('Registration failed');
                });
        }

        function login(event) {
            event.preventDefault();
            var userId = document.getElementById('login-user-id').value;
            var password = document.getElementById('login-password').value;

            fetch('http://ec2-18-224-51-247.us-east-2.compute.amazonaws.com:8000/token', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/x-www-form-urlencoded'
                },
                body: `username=${encodeURIComponent(userId)}&password=${encodeURIComponent(password)}&grant_type=password`
            })
                .then(response => {
                    if (!response.ok) {
                        throw new Error(`HTTP error! status: ${response.status}`);
                    }
                    return response.json();
                })
                .then(data => {
                    alert('Login successful');
                    localStorage.setItem('token', data.access_token);
                    // reload the page to show the conversation list
                    location.reload();
                })
                .catch((error) => {
                    console.error('Error:', error);
                    alert('Login failed');
                });
        }


        document.getElementById('message-input').addEventListener('keypress', function (event) {
            var input = document.getElementById('message-input').value;

            if (event.key === 'Enter') {
                event.preventDefault();

                if (input == '') {
                    return;
                }

                submitForm(event);
            }
        });

        // Create a chat history object
        // This object will be used to keep track of the conversation for multi-turn conversations
        let chatHistory = {
            "content": []
        };

        let currentConversationId = null;

        function submitForm(event) {
            event.preventDefault();
            var message = document.getElementById('message-input').value;

            // The user's message is added as a new object with the role 'user' and the content of the message
            chatHistory.content.push({
                "role": "user",
                "parts": [message]
            });

            let messageElement = document.createElement('p');
            messageElement.textContent = message;
            document.getElementById('message-window').appendChild(messageElement);

            let data = JSON.stringify(
                {
                    "content": chatHistory.content
                }
            );

            fetch('http://ec2-18-224-51-247.us-east-2.compute.amazonaws.com:8000/chat', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                    'Authorization': 'Bearer ' + localStorage.getItem('token')
                },
                body: data
            })
                .then(response => {
                    // The response from the API is a ReadableStream
                    // This allows for the data to be read in chunks as it is being received
                    const reader = response.body.getReader();
                    let responseElement = document.getElementById('response');
                    let chunks = '';

                    let tempElement = document.createElement('p');
                    document.getElementById('message-window').appendChild(tempElement);

                    // // Start reading the response from the API
                    // The response is read in chunks to allow for dynamic display of the model's response
                    return reader.read().then(function processText({ done, value }) {
                        // check to see if the response has been fully received
                        if (done) {
                            // The model's response is added as a new object with the role 'model'
                            // and the content of the response
                            chatHistory.content.push({
                                "role": "model",
                                "parts": [chunks]
                            });

                            let responseElement = document.createElement('p');
                            responseElement.textContent = chunks;
                            document.getElementById('message-window').replaceChild(responseElement, tempElement);

                            saveChat(chatHistory);
                            return;
                        }
                        let chunk = new TextDecoder('utf-8').decode(value);
                        chunks += chunk;

                        tempElement.textContent = chunks;

                        // Continue reading the next chunk of the response
                        return reader.read().then(processText);
                    });
                })
                .catch((error) => {
                    console.error('Error:', error);
                });

            document.getElementById('message-input').value = '';
        }

        function getAllConversationTitles() {
            fetch('http://ec2-18-224-51-247.us-east-2.compute.amazonaws.com:8000/user/me/conversations', {
                method: 'GET',
                headers: {
                    'Authorization': 'Bearer ' + localStorage.getItem('token')
                }
            })
                .then(response => response.json())
                .then(data => {
                    let conversationListElement = document.getElementById('conversation-list');
                    conversationListElement.innerHTML = '';

                    data.forEach(conversation => {
                        let conversationElement = document.createElement('p');
                        conversationElement.textContent = conversation.title;
                        conversationElement.addEventListener('click', function () {
                            currentConversationId = conversation.conversation_id;
                            getConversation(conversation.conversation_id);
                        });

                        conversationListElement.appendChild(conversationElement);
                    });
                })
                .catch((error) => {
                    console.error('Error:', error);
                });
        }

        function getConversation(conversationId) {
            fetch(`http://ec2-18-224-51-247.us-east-2.compute.amazonaws.com:8000/user/me/conversations/${conversationId}`, {
                method: 'GET',
                headers: {
                    'Authorization': 'Bearer ' + localStorage.getItem('token')
                }
            })
                .then(response => response.json())
                .then(data => {
                    chatHistory.content = data;
                    let messageWindowElement = document.getElementById('message-window');
                    messageWindowElement.innerHTML = '';

                    data.forEach(message => {
                        let messageElement = document.createElement('p');
                        messageElement.textContent = message.parts.join(' ');

                        messageWindowElement.appendChild(messageElement);
                    });
                })
                .catch((error) => {
                    console.error('Error:', error);
                });
        }

        function saveChat(chatHistory) {
            fetch(`http://ec2-18-224-51-247.us-east-2.compute.amazonaws.com:8000/user/me/conversations/${currentConversationId}`, {
                method: 'POST',
                headers: {
                    'Authorization': 'Bearer ' + localStorage.getItem('token'),
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify(chatHistory)
            })
                .then(response => response.json())
                .then(data => {
                    console.log(data);
                })
                .catch((error) => {
                    console.error('Error:', error);
                });
        }

        function newConversation(event) {
            document.getElementById('message-window').innerHTML = '';

            currentConversationId = 0;
            chatHistory.content = [];
            saveChat(chatHistory);

            getAllConversationTitles();
        }

        // Call getAllConversationTitles when the page loads
        window.onload = getAllConversationTitles;
    </script>
</body>

</html>