# External Dependencies v####################################
import sys
from PySide6.QtWidgets import (QApplication,
                               QMainWindow,
                               QWidget,
                               QVBoxLayout,
                               QProgressBar,
                               QPushButton)
from PySide6.QtCore import (Qt,
                            QTimer,
                            QThreadPool)
from PySide6.QtGui import QIcon
## Internal Imports #########################################
import resources
import common
from MessageHandler import MessageHandler
## Platform Imports #########################################
import globals
if globals.os == "Windows":
    from LiquidCTL_Helper_Windows import LiquidCTL_Helper
    from styles import Labels_Windows as Labels
    import win32mica
    import darkdetect
elif globals.os == "Linux":
    from LiquidCTL_Helper_Linux import LiquidCTL_Helper
    from styles import Labels_Linux as Labels
    from pathlib import Path


class MainWindow(QMainWindow):
    """ Main application window. """

    def __init__(self, lctl):
        super(MainWindow, self).__init__()
        self.setWindowTitle("LiquidGUI (v.1.2.0.0)")
        self.setFixedSize(450, 500)

        self.lctl = lctl

        # Widgets ##########################################
        self.lbl_device_name = Labels.MainLabel()

        self.lbl_temp = Labels.SubLabel(value="💧 Liquid Temperature:")
        self.min_max_cur_temp = common.MinMaxCurrent()
        self.prg_temp = QProgressBar(textVisible=False,
                                     minimum=0,
                                     maximum=50)
        self.lbl_value_prg_temp = Labels.SubLabelValue()

        self.lbl_fanspeed = Labels.SubLabel(value="🍃 Fan Speed:")
        self.min_max_cur_fanspeed = common.MinMaxCurrent()
        self.prg_fanspeed = QProgressBar(textVisible=False,
                                         minimum=520,
                                         maximum=1700)
        self.lbl_value_prg_fanspeed = Labels.SubLabelValue()

        self.lbl_pumpspeed = Labels.SubLabel(value="⛽ Pump Speed:")
        self.min_max_cur_pumpspeed = common.MinMaxCurrent()
        self.prg_pumpspeed = QProgressBar(textVisible=False,
                                          minimum=1900,
                                          maximum=2700)
        self.lbl_value_prg_pumpspeed = Labels.SubLabelValue()
        self.btn_reset_min_max = QPushButton("Reset Min/Max")
        self.btn_reset_min_max.clicked.connect(self.on_reset_min_max)

        self.lbl_fwvers = Labels.SubLabelValue()

        # Layout ##########################################
        widget = QWidget(self)
        layout = QVBoxLayout(widget)
        layout.addWidget(self.lbl_device_name)
        layout.addWidget(self.lbl_temp)
        layout.addWidget(self.prg_temp)
        layout.addWidget(self.lbl_value_prg_temp)
        layout.addWidget(self.lbl_fanspeed)
        layout.addWidget(self.prg_fanspeed)
        layout.addWidget(self.lbl_value_prg_fanspeed)
        layout.addWidget(self.lbl_pumpspeed)
        layout.addWidget(self.prg_pumpspeed)
        layout.addWidget(self.lbl_value_prg_pumpspeed)
        layout.addWidget(self.lbl_fwvers)
        layout.addWidget(self.btn_reset_min_max)

        layout.setSpacing(10)

        self.setLayout(layout)
        self.setCentralWidget(widget)
        self.setContentsMargins(20, 20, 20, 20)

        # Threading #######################################
        self.thread_manager = QThreadPool()

        self.timer = QTimer()
        self.timer.setInterval(1000)
        self.timer.timeout.connect(lambda: self.thread_manager.start(self.lctl.Update))
        self.timer.timeout.connect(self.update_widgets)
        self.timer.start()

    def on_reset_min_max(self):
        """ Pauses the timer and creates new instances of MinMaxCurrent """
        self.timer.stop()
        self.min_max_cur_temp = common.MinMaxCurrent()
        self.min_max_cur_fanspeed = common.MinMaxCurrent()
        self.min_max_cur_pumpspeed = common.MinMaxCurrent()
        self.timer.start()

    def update_widgets(self):
        """ Update widgets using LiquidCTL library."""
        self.lbl_device_name.setText(self.lctl.device_name)
        self.prg_temp.setValue(self.lctl.device_temp)
        self.lbl_value_prg_temp.setText(
            self.min_max_cur_temp.builder(
                self.lctl.device_temp, "°C"))
        self.prg_fanspeed.setValue(self.lctl.device_fanSpeed)
        self.lbl_value_prg_fanspeed.setText(
            self.min_max_cur_fanspeed.builder(
                self.lctl.device_fanSpeed, " rpm"))
        self.prg_pumpspeed.setValue(self.lctl.device_pumpSpeed)
        self.lbl_value_prg_pumpspeed.setText(
            self.min_max_cur_pumpspeed.builder(
                self.lctl.device_pumpSpeed, " rpm"))
        if self.lctl.device_fwVers is not None:
            self.lbl_fwvers.setText(f"Firmware: v{self.lctl.device_fwVers}")


def main():
    """ Initialize application and setup window parameters. """
    app = QApplication(sys.argv)
    window = MainWindow(LiquidCTL_Helper())

    if globals.os == "Windows":
        window.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
        icon = QIcon(":/icons/LiquidGUI.ico")

        if darkdetect.isDark():
            win32mica.ApplyMica(window.winId(), win32mica.MICAMODE.DARK)
        elif darkdetect.isLight():
            win32mica.ApplyMica(window.winId(), win32mica.MICAMODE.LIGHT)

    elif globals.os == "Linux":
        app.setDesktopFileName("LiquidGUI")
        icon = QIcon(":/icons/LiquidGUI.png")

    app.setWindowIcon(icon)

    # Show error and quit app if no devices are found
    if window.lctl.TestConnectionState():
        MessageHandler().ShowNoDevicesFoundError()
        sys.exit(1)
    else:
        window.show()
        app.exec()


if __name__ == "__main__":
    main()