localchat/main.py

from PySide2 import QtWidgets as qt
from PySide2 import QtCore as qtc
import configparser, sys, os
from datetime import datetime as dt

set_debug = False

class TextLine:
    def __init__(self, username, textarea, timestamp, logfile):
        self.username = username
        self.label = qt.QLabel("&{}:".format(username))
        self.message = qt.QLineEdit()
        self.message.returnPressed.connect(self.pressButton)
        self.textarea = textarea
        self.label.setBuddy(self.message)
        self.timestamp = timestamp
        self.logfile = logfile
        
    def pressButton(self):
        if self.timestamp:
            t = dt.now()
            o = "[{}] {}: {}".format(t.strftime("%H:%M:%S"), self.username, self.message.text())
        else:
            o = "{}: {}".format(self.username, self.message.text())
        self.textarea.append(o)
        if self.logfile != "":
            with open(self.logfile, "a", encoding="utf8") as file:
                file.write(o + "\n")
        self.message.clear()

    def toString(self):
        print(self.username)

def debug(message):
    if set_debug:
        print(message)

def main():
    debug("Loading config...")
    cfg = config()

    timestamp = True if int(cfg["timestamp"]) == 1 else False

    debug("Setting up...")
    app = qt.QApplication([])
    layout = qt.QVBoxLayout()

    debug("Making text area...")
    text_area = qt.QTextEdit()
    text_area.setFocusPolicy(qtc.Qt.NoFocus)
    layout.addWidget(text_area)

    debug("Getting users...")
    users = [x.strip() for x in cfg["users"].split(",")]
    debug("Users are {}".format(users))
    inputs = []
    for user in users:
        ipt = TextLine(user, text_area, timestamp, cfg["logfile"])
        inputs.append(ipt)
    for ipt in inputs:
        layout.addWidget(ipt.label)
        layout.addWidget(ipt.message)

    debug("Starting window...")
    window = qt.QWidget()
    window.setLayout(layout)
    window.resize(int(cfg["sizew"]), int(cfg["sizeh"]))
    window.show()

    debug("Starting interactivity...")
    app.exec_()
    
def config():
    config = configparser.ConfigParser()
    if not os.path.isfile('config.ini'):
        print("config.ini is missing!")
        sys.exit(0)
    config.read('config.ini')
    return config["DEFAULT"]

if __name__ == "__main__":
    main()