import tkinter as tk
from app.views.login import LoginView
from app.views.initial import InitialView
from app.views.signup import SignupView


class MainApplication(tk.Tk):
    def __init__(self):
        super().__init__()

        self.title("Messenger App")

        screen_height = self.winfo_screenheight()
        self.geometry(f"{screen_height // 2}x{screen_height // 2}")
        self.current_view = None

        self.change_to_initial_view()

    def change_to_initial_view(self):
        self.change_view(InitialView(self))

    def change_to_sing_in_view(self):
        self.change_view(SignupView(self))

    def change_to_login_view(self):
        self.change_view(LoginView(self))

    def change_view(self, view: tk.Frame):
        if self.current_view:
            self.current_view.destroy()

        self.current_view = view
        self.current_view.pack(expand=True, fill=tk.BOTH)
        self.current_view.place(relx=0.5, rely=0.5, anchor=tk.CENTER)