#!/usr/bin/python3

from PyQt6.QtCore import QTimer

PROGRESS_UPDATE_RATE = 60
PROGRESS_UPDATE_INTERVAL = 1000 // PROGRESS_UPDATE_RATE


class GUICommunication:
    """
    Class handling events that are a bit more complex.
    """

    def __init__(self, app):
        self.app = app

        self.window = self.app.gui.window
        self.track_control = self.window.main_container.track_control

        self.track_progress_slider_dragged = False

        self.connect()

        self.progress_update_timer = QTimer()
        self.progress_update_timer.timeout.connect(self.update_progress)
        self.progress_update_timer.start(PROGRESS_UPDATE_INTERVAL)
        self.on_track_start()

    def connect(self):
        self.track_control.track_progress_slider.sliderPressed.connect(self.on_progress_slider_press)
        self.track_control.track_progress_slider.sliderReleased.connect(self.on_progress_slider_release)

    def on_progress_slider_press(self):
        self.track_progress_slider_dragged = True

    def on_progress_slider_release(self):
        self.track_progress_slider_dragged = False
        self.app.player.seek(self.track_control.track_progress_slider.value())

    def on_track_start(self):
        duration = self.app.player.playing_track.duration

        self.track_control.track_progress_slider.setRange(
            0,
            duration
        )

        self.track_control.track_length_indicator.setText(self.app.utils.format_time(duration))

        self.update_progress()

    def update_progress(self):
        if not self.track_progress_slider_dragged:
            remaining = self.app.player.track_progress.timer.remainingTime()

            if remaining == -1:
                remaining = self.app.player.track_progress.remaining_time

            track_duration = self.app.player.playing_track.duration

            progress = track_duration - remaining

            self.track_control.progress_indicator.setText(self.app.utils.format_time(progress))

            self.track_control.track_progress_slider.setValue(progress)