main.py

from PyQt6.QtWidgets import QApplication, QMainWindow, QTextEdit, QLineEdit, QPushButton
import sys
from backend import Chatbot
import threading


# noinspection PyUnresolvedReferences
class ChatbotWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        # Instantiate Chatbot class from backend with your Gemini API Key
        self.chatbot = Chatbot("")

        self.setMinimumSize(700, 500)

        # Add chat area widget
        self.chat_area = QTextEdit(self)
        self.chat_area.setGeometry(10, 10, 480, 320)
        # To set the chat area only readable
        self.chat_area.setReadOnly(True)

        # Add the input field widget
        self.input_area = QLineEdit(self)
        self.input_area.setGeometry(10, 340, 480, 40)
        # To send msg when pressed 'Enter' key on keypad rather than selecting 'Send' button on gui
        self.input_area.returnPressed.connect(self.send_message)

        # Add the button
        self.button = QPushButton("Send", self)
        self.button.setGeometry(500, 340, 80, 40)
        self.button.clicked.connect(self.send_message)

        self.show()

    def send_message(self):
        user_input = self.input_area.text().strip()
        self.chat_area.append(f"<p style='color:#333333'>Me: {user_input}</p>")
        self.input_area.clear()
        # Threading
        thread = threading.Thread(target=self.get_bot_response, args=(user_input, ))
        thread.start()

    def get_bot_response(self, user_input):
        response = self.chatbot.get_response(user_input)
        self.chat_area.append(f"<p style='color:#333333; background-color: #E9E9E9'>Bot: {response}</p>")


app = QApplication(sys.argv)
chatbot_window = ChatbotWindow()
sys.exit(app.exec())