# -*- coding: utf-8 -*-

from PySide6.QtCore import Qt, QSize, Signal
from PySide6.QtWidgets import QDialog, QLabel

from icon import MenuIcon, LogoIcon
from style import LabelStyle, WidgetStyle, ButtonStyle
from utils import DateUtils
from version import  AppVersion
from ui_about import Ui_AboutWindow

import os

class AboutWindow(QDialog):
    theme_signal = Signal(str)

    def __init__(self, parent=None, theme=None):
        super().__init__(parent)

        self.theme = theme

        self.is_moving = None
        self.start_point = None
        self.window_point = None

        self.ui = Ui_AboutWindow()
        self.ui.setupUi(self)

        self.init_window()
        self.init_menu()
        self.init_content()

    def init_window(self):
        self.ui.lbl_logo.setMinimumSize(QSize(24, 24))
        self.ui.lbl_logo.setMaximumSize(QSize(24, 24))
        self.ui.lbl_logo.setPixmap(LogoIcon.get_pixmap())
        self.ui.lbl_logo.setScaledContents(True)
        self.ui.lbl_logo.setText('')
        self.ui.lbl_title.setStyleSheet(LabelStyle.get_title())
        self.ui.wid_main.setContentsMargins(16, 8, 4, 16)
        self.ui.wid_main.setStyleSheet(WidgetStyle.get_border('wid_main'))
        self.setWindowFlags(Qt.Dialog | Qt.FramelessWindowHint)

    def init_menu(self):
        self.ui.btn_close.setFlat(True)
        self.ui.btn_close.setIcon(MenuIcon.get_close())
        self.ui.btn_close.setIconSize(QSize(24, 24))
        self.ui.btn_close.setText('')
        self.ui.btn_close.setStyleSheet(ButtonStyle.get_close())
        self.ui.btn_close.clicked.connect(self.on_exit)

    def init_content(self):
        self.ui.layout.setAlignment(Qt.AlignCenter)
        self.ui.layout.addStretch()

        label = QLabel()
        label.setText(AboutWindow.tr('title_this_app'))
        label.setStyleSheet('font-size: 16px')
        self.ui.layout.addWidget(label, 1)

        label = QLabel()
        label.setFixedHeight(6)
        self.ui.layout.addWidget(label, 1)

        label = QLabel()
        label.setText(AppVersion.get_version())
        label.setStyleSheet('font-size: 14px')
        self.ui.layout.addWidget(label, 1)

        label = QLabel()
        label.setText(AppVersion.get_build())
        label.setStyleSheet('font-size: 14px')
        self.ui.layout.addWidget(label, 1)

        label = QLabel()
        label.setFixedHeight(6)
        self.ui.layout.addWidget(label, 1)

        label = QLabel()
        label.setText('Powered by open source software')
        label.setStyleSheet('QLabel:hover{color: #448aff;text-decoration:underline;}')
        label.mousePressEvent = self.on_open_license
        self.ui.layout.addWidget(label, 1)

        label = QLabel()
        label.setText('Copyright © ' + DateUtils.get_year() + ' iounce. All rights reserved.')
        self.ui.layout.addWidget(label, 1)

    @staticmethod
    def get_license_folder():
        return os.path.join(os.getcwd(), "3rd_license")

    def on_exit(self):
        self.close()

    def on_open_license(self, e):
        if e.button() == Qt.LeftButton:
            os.startfile(self.get_license_folder())

    def mousePressEvent(self, e):
        if e.button() == Qt.LeftButton:
            self.is_moving = True
            self.start_point = e.globalPosition().toPoint()
            self.window_point = self.frameGeometry().topLeft()

    def mouseMoveEvent(self, e):
        if self.is_moving:
            pos = e.globalPosition().toPoint() - self.start_point
            self.move(self.window_point + pos)

    def mouseReleaseEvent(self, e):
        self.is_moving = False