Module CoffeeChat.client

"""Inicialização do cliente e sua interface GUI"""
import os
import argparse
import threading
import tkinter as tk
import coffeechat.Client as Client


def main(host, port):
        """
        Configuração do cliente e inicializa a interface gráfica.
        
        Attributes:
                host (str): Endereço IP do socket.
                port (int): Número da porta do socket.
        """
        # Janela
        client = Client.Client(host, port)
        receive = client.start()
        window = tk.Tk()
        window.title('CoffeeChat')
        window.resizable(height=False, width=False)
        if os.name == 'nt':
                window.iconbitmap('img/logo_2.ico')
        window.config(background='#3c3939')

        # Componentes
        frm_messages = tk.Frame(master=window, bg='#3c3939')
        scrollbar = tk.Scrollbar(master=frm_messages)
        messages = tk.Listbox(master=frm_messages,
                              yscrollcommand=scrollbar.set,
                              fg='white',
                              bg='#3c3939',
                              borderwidth=0,
                              highlightthickness=0,
                              selectbackground="Red",
                              highlightcolor="Green")
        scrollbar.pack(side=tk.RIGHT, fill=tk.Y, expand=False)
        messages.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)

        client.messages = messages
        receive.messages = messages

        # Imagem & Formulario
        frm_messages.pack(fill='both', expand=True, padx=10, pady=10)

        # Input
        frm_entry = tk.Frame(master=window)
        text_input = tk.Entry(master=frm_entry,
                              borderwidth=18,
                              bg='#524f4f',
                              fg='white',
                              relief=tk.FLAT,
                              font='Times 10')
        text_input.pack(fill=tk.BOTH, expand=True)
        text_input.bind("<Return>", lambda x: client.send(text_input))
        text_input.insert(0, "Digite algo e aperte enter.")
        text_input.bind("<Button-1>", lambda x: text_input.delete(0, tk.END))
        text_input.focus()

        # Pack ou Grid
        frm_entry.pack(fill='both')

        # Configs
        width = 450
        heigth = 550
        x = (window.winfo_screenwidth() // 2) - (width // 2)
        y = (window.winfo_screenheight() // 2) - (heigth // 2)
        window.geometry('{}x{}+{}+{}'.format(width, heigth, x, y))

        window.mainloop()


def redirect(host, port, window):
        """
        Redireciona o usuário para a sala de bate-papo.

        Attributes:
                host (str): Endereço IP do socket.
                port (int): Número da porta do socket.
                window (tk.Frame): Objeto tk.Frame que contém a interface GUI que será destruida para criação da tela da sala de bate papo.
        """
        host = host_input.get()
        window.destroy()
        main(host, 1060)


if __name__ == "__main__":

        window = tk.Tk()
        window.title('Cliente - Conexão ao Host')
        window.resizable(height=False, width=False)
        if os.name == 'nt':
                window.iconbitmap('img/logo_2.ico')
        host_input = tk.Entry(master=window,
                              width='50',
                              borderwidth=18,
                              bg='#ccc',
                              relief=tk.FLAT,
                              font='Times 10')
        host_input.pack(fill=tk.BOTH, expand=True)
        host_input.bind("<Return>",
                        lambda x: redirect(host_input.get(), 1060, window))
        host_input.insert(
            0, "Digite o endereço de Host que deseja se Conectar, ex: localhost")
        host_input.bind("<Button-1>", lambda x: host_input.delete(0, tk.END))

        width = 450
        heigth = 50
        x = (window.winfo_screenwidth() // 2) - (width // 2)
        y = (window.winfo_screenheight() // 2) - (heigth // 2)
        window.geometry('{}x{}+{}+{}'.format(width, heigth, x, y))

        window.mainloop()
        # parser = argparse.ArgumentParser(description='CoffeChat Client')
        # parser.add_argument('host', help='Interface the server listens at')
        # parser.add_argument('-p',
        #                     metavar='PORT',
        #                     type=int,
        #                     default=1060,
        #                     help='TCP port (default 1060)')
        # args = parser.parse_args()

        # Create and start server thread
        # main(args.host, args.p)
        # client = Client.Client(args.host, args.p)
        # client.start()