NOIT 27/02

import tkinter
import datetime
import serial
import threading

ser = serial.Serial("COM4", 9600)


def receive(serial):
    while True:
        try:
            ser_bytes = serial.readline()
            data = ser_bytes[0: len(ser_bytes) - 1].decode("utf-8")
            time = str(datetime.datetime.now().replace(microsecond=0))
            msg_list.insert(tkinter.END, "[" + time + "] " + data)

        except OSError:
            break


def send(event=None):
    msg = my_msg.get()
    nickname = nick_field.get()
    my_msg.set("")
    msg = nickname + ": " + msg

    time = str(datetime.datetime.now().replace(microsecond=0))

    if my_msg != "Enter your username here":
        ser.write(msg.encode())
        msg_list.insert(tkinter.END, "[" + time + "] " + msg)




top = tkinter.Tk()
top.title("Chat")

messages_frame = tkinter.Frame(top)
my_msg = tkinter.StringVar()
my_msg.set("")
scrollbar = tkinter.Scrollbar(messages_frame)

msg_list = tkinter.Listbox(messages_frame, height=15, width=50, yscrollcommand=scrollbar.set)
scrollbar.pack(side=tkinter.RIGHT, fill=tkinter.Y)
msg_list.pack(side=tkinter.LEFT, fill=tkinter.BOTH)
msg_list.pack()


nick_field = tkinter.Entry()
nick_field.insert(0, 'Enter your username here')
nick_field.bind("<FocusIn>", lambda args: nick_field.delete('0', 'end'))
nick_field.pack(fill=tkinter.BOTH)

messages_frame.pack()



entry_field = tkinter.Entry(top, textvariable=my_msg)
entry_field.insert(0, 'Enter your message here')
entry_field.bind("<Return>", send)
entry_field.bind("<FocusIn>", lambda args: entry_field.delete('0', 'end'))
entry_field.pack()
send_button = tkinter.Button(top, text="Send", command=send)
send_button.pack()

thread = threading.Thread(target=receive, args=(ser,))
thread.start()
tkinter.mainloop()