appcli.py

from tkinter import *
from chat import get_response, bot_name

BG_GRAY = "#ABB2B9"
BG_COLOR = "#17202A"
TEXT_COLOR = "#EAECEE"

FONT = "Helvetica 14"
FONT_BOLD = "Helvetica 13 bold"

class ChatApplication:
    def __init__(self):
        self.window = Tk()
        self._setup_main_window()
        
    def run(self):
        self.window.mainloop()
    
    def _setup_main_window(self):
        self.window.title("My chatbot")
        self.window.resizable(width=False,height=False)
        self.window.configure(width=470,height=550,bg=BG_COLOR)
        # head label
        head_label = Label(self.window, bg=BG_COLOR, fg=TEXT_COLOR, 
                           text="WELCOME", font=FONT_BOLD, pady = 10)
        head_label.place(relwidth=1)
        
        # tiny divider
        line = Label(self.window, width=450, bg=BG_GRAY)
        line.place(relwidth=1, rely=0.07, relheight=0.012)
        
        # text widget
        #instance variable
        self.text_widget = Text(self.window,width=20,height=2,
                                fg=TEXT_COLOR,bg=BG_COLOR,font=FONT,padx=5,pady=5)
        self.text_widget.place(relheight=0.745,relwidth=1,rely=0.08)
        self.text_widget.configure(cursor="arrow", state=DISABLED)
        
        # scroll bar
        scrollbar = Scrollbar(self.text_widget)
        scrollbar.place(relheight=1,relx=0.974) #ito percentage, these values are given
        scrollbar.configure(command=self.text_widget.yview)
        
        # bottom label
        bottom_label = Label(self.window, bg=BG_GRAY, height=80)
        bottom_label.place(relwidth=1,rely=0.825)
        
        # message entry box
        self.msg_entry = Entry(bottom_label, bg="#2C3E50", fg=TEXT_COLOR, font=FONT)
        self.msg_entry.place(relheight=0.06,relwidth=0.74, rely=0.008, relx=0.011)
        self.msg_entry.focus()
        self.msg_entry.bind("<Return>",self._on_enter_pressed)
        
        send_button = Button(bottom_label, text="Send", font=FONT_BOLD, width=20, bg=BG_GRAY,
                             command=lambda: self._on_enter_pressed(None))
        send_button.place(relx=0.77,rely=0.008,relheight=0.06,relwidth=0.22)
    def _on_enter_pressed(self, event):
        msg = self.msg_entry.get()
        self._insert_message(msg, "You")
        
    def _insert_message(self,msg,sender):
        if not msg:
            return
        
        self.msg_entry.delete(0,END)
        msg1 = f"{sender}: {msg}\n\n"
        self.text_widget.configure(state=NORMAL)
        self.text_widget.insert(END,msg1)
        self.text_widget.configure(state=DISABLED)
        
        msg2 = f"{bot_name}: {get_response(msg)}\n\n"
        self.text_widget.configure(state=NORMAL)
        self.text_widget.insert(END,msg2)
        self.text_widget.configure(state=DISABLED)   
        self.text_widget.see(END)
        
if __name__ == "__main__":
    app = ChatApplication()
    app.run()