import logging
import sys
from argparse import ArgumentParser
from threading import Thread
from queue import Queue

from Xlib import X, display

from .models import ClipboardData
from .xoperations import process_event_loop
from .notifications import display_desktop_notification


logger = logging.getLogger("ClipboardWatcher")


def set_logger_settings(level_name: str) -> None:
    level = logging.getLevelName(level_name)
    logging.basicConfig(stream=sys.stdout, level=level)


def process_notifications(q: Queue):
    while True:
        req = q.get(block=True)
        display_desktop_notification(
            f"New access to {req['selection']}({req['target']}) detected.",
            f"Window: {req['window_name']} (id: {req['id']})\nPossible PID: {req['pid']} | Extra Info: {req['extra']}",
        )


def main() -> None:
    parser = ArgumentParser(
        "Monitors the access of other processes to the clipboard contents."
    )
    parser.add_argument("-l", "--loglevel", help="Choose the log level")
    args = parser.parse_args()
    if args.loglevel and args.loglevel in ["DEBUG", "INFO", "WARNING", "ERROR"]:
        set_logger_settings(args.loglevel)
    else:
        set_logger_settings("INFO")

    logger.info("Initializing X client")
    disp = display.Display()
    # Create ourselves a window and a property for the returned data
    window = disp.screen().root.create_window(0, 0, 10, 10, 0, X.CopyFromParent)
    window.set_wm_name("clipboard_watcher")

    logger.debug("Getting selection data")
    cb_data = ClipboardData(disp, window, {}, {})
    cb_data.refresh_all()
    logger.debug("Taken ownership of all selections")

    job_queue = Queue()
    # Thread 1
    event_worker = Thread(
        target=process_event_loop, args=(disp, window, job_queue, cb_data), daemon=True
    )
    # Thread 2
    notif_worker = Thread(
        target=process_notifications,
        args=(job_queue,),
        daemon=True,
    )

    event_worker.start()
    notif_worker.start()
    logger.info("Setup done. Keeping an eye on the clipboard")
    try:
        event_worker.join()
        notif_worker.join()
    except KeyboardInterrupt:
        logger.info("Shutting down")


if __name__ == "__main__":
    main()