hackathon/chatbot.php at main · lakshman7781/hackathon · GitHub

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<!DOCTYPE html>
<!-- Coding By CodingNepal - www.codingnepalweb.com -->
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>CampusOnline</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- Google Fonts Link For Icons -->
    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@48,400,0,0" />
    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@48,400,1,0" />
    <meta>
    <style>
/* Global Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Body Styles */
body {
  font-family: 'Arial', sans-serif;
  background-color: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

/* Chatbot Toggler */
.chatbot-toggler {
  position: fixed;
  bottom: 30px;
  right: 35px;
  z-index: 1;
}

/* Chatbot Container */
.chatbot {
  position: fixed;

  right: 20px;
  width: 350px;
  height: 500px;
  background: #fff;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  overflow: hidden;
}

body.show-chatbot .chatbot {
  transform: translateY(0);
}

/* Chat Header */
.chatbot header {
  background-color: #724ae8;
  color: #fff;
  text-align: center;
  padding: 15px 0;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
}

.chatbot header h2 {
  font-size: 1.5rem;
}

/* Chatbox */
.chatbox {
  height: 380px;
  overflow-y: auto;
  padding: 15px;
}

/* Chat Input */
.chat-input {
  display: flex;
  align-items: center;
  padding: 10px 15px;
  border-top: 1px solid #ddd;
}

.chat-input textarea {
  flex: 1;
  height: 40px;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  resize: none;
  margin-right: 10px;
  font-size: 14px;
}

.send-btn {
  background-color: #724ae8;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 14px;
}

.send-btn:hover {
  background-color: #5b37b7;
}

/* Media Queries */
@media (max-width: 500px) {
  .chatbot {
    width: calc(100% - 40px);
    right: 20px;
  }
}

@media (max-width: 420px) {
  .chat-input {
    padding: 8px 12px;
  }

  .chat-input textarea {
    height: 30px;
    padding: 8px;
  }

  .send-btn {
    padding: 8px 15px;
  }
}

  </style>
  </head>
    <button class="chatbot-toggler">
      <a href="#"><span class="material-symbols-outlined">close</span></a>
    </button>
  <body class="show-chatbot">
    <div class="chatbot">
      <header>
        <h2>Chatbot</h2>

      </header>
      <ul class="chatbox">
        <li class="chat incoming">
          <span class="material-symbols-outlined">smart_toy</span>
          <p>Hi there 👋<br>How can I help you today?</p>
        </li>
      </ul>
      <div class="chat-input">
        <textarea placeholder="Enter a message..." spellcheck="false" required></textarea>
        <span id="send-btn" class="material-symbols-rounded">send</span>
      </div>
    </div>

  </body>
</html>
<script>
const chatbotToggler = document.querySelector(".chatbot-toggler");
const closeBtn = document.querySelector(".close-btn");
const chatbox = document.querySelector(".chatbox");
const chatInput = document.querySelector(".chat-input textarea");
const sendChatBtn = document.querySelector(".chat-input span");

let userMessage = null; // Variable to store user's message
const API_KEY = "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"; // Paste your API key here
const inputInitHeight = chatInput.scrollHeight;

const createChatLi = (message, className) => {
    // Create a chat <li> element with passed message and className
    const chatLi = document.createElement("li");
    chatLi.classList.add("chat", `${className}`);
    let chatContent = className === "outgoing" ? `<p></p>` : `<span class="material-symbols-outlined">smart_toy</span><p></p>`;
    chatLi.innerHTML = chatContent;
    chatLi.querySelector("p").textContent = message;
    return chatLi; // return chat <li> element
}

const generateResponse = (chatElement) => {
    const API_URL = "https://api.openai.com/v1/chat/completions";
    const messageElement = chatElement.querySelector("p");

    // Define the properties and message for the API request
    const requestOptions = {
        method: "POST",
        headers: {
            "Content-Type": "application/json",
            "Authorization": `Bearer ${API_KEY}`
        },
        body: JSON.stringify({
            model: "gpt-3.5-turbo",
            messages: [{role: "user", content: userMessage}],
        })
    }

    // Send POST request to API, get response and set the reponse as paragraph text
    fetch(API_URL, requestOptions).then(res => res.json()).then(data => {
        messageElement.textContent = data.choices[0].message.content.trim();
    }).catch(() => {
        messageElement.classList.add("error");
        messageElement.textContent = "Oops! Something went wrong. Please try again.";
    }).finally(() => chatbox.scrollTo(0, chatbox.scrollHeight));
}

const handleChat = () => {
    userMessage = chatInput.value.trim(); // Get user entered message and remove extra whitespace
    if(!userMessage) return;

    // Clear the input textarea and set its height to default
    chatInput.value = "";
    chatInput.style.height = `${inputInitHeight}px`;

    // Append the user's message to the chatbox
    chatbox.appendChild(createChatLi(userMessage, "outgoing"));
    chatbox.scrollTo(0, chatbox.scrollHeight);

    setTimeout(() => {
        // Display "Thinking..." message while waiting for the response
        const incomingChatLi = createChatLi("Thinking...", "incoming");
        chatbox.appendChild(incomingChatLi);
        chatbox.scrollTo(0, chatbox.scrollHeight);
        generateResponse(incomingChatLi);
    }, 600);
}

chatInput.addEventListener("input", () => {
    // Adjust the height of the input textarea based on its content
    chatInput.style.height = `${inputInitHeight}px`;
    chatInput.style.height = `${chatInput.scrollHeight}px`;
});

chatInput.addEventListener("keydown", (e) => {
    // If Enter key is pressed without Shift key and the window
    // width is greater than 800px, handle the chat
    if(e.key === "Enter" && !e.shiftKey && window.innerWidth > 800) {
        e.preventDefault();
        handleChat();
    }
});

sendChatBtn.addEventListener("click", handleChat);
// closeBtn.addEventListener("click", () => document.body.classList.remove("show-chatbot"));
chatbotToggler.addEventListener("click", () => document.body.classList.toggle("show-chatbot"));
</script>