from datetime import datetime
from PyQt5 import QtWidgets
from PyQt5.QtCore import QTimer, QThread, pyqtSignal
from PyQt5.QtWidgets import QApplication, QDialog, QCheckBox, QMessageBox, QCalendarWidget, QWidget, QVBoxLayout, QLabel

from app.components.calendar_dialog import CalendarDialog
try:
    from .time_range import Ui_Dialog
except:
    from time_range import Ui_Dialog
Stylesheet = '''
QToolButton{
    color:#000000;
}
QCalendarWidget QAbstractItemView:disabled {

}
QCalendarWidget QAbstractItemView:enabled{
}
'''


class TimeRangeDialog(QDialog, Ui_Dialog):
    date_range_signal = pyqtSignal(tuple)

    def __init__(self, date_range=None, parent=None):
        """

        @param date_range: tuple[Union[QDate, datetime.date],Union[QDate, datetime.date]] 限定的可选择范围
        @param parent:
        """
        super().__init__(parent)
        self.calendar = None
        self.setupUi(self)
        self.setWindowTitle('选择日期范围')
        self.setStyleSheet(Stylesheet)
        self.toolButton_start_time.clicked.connect(self.select_date_start)
        self.toolButton_end_time.clicked.connect(self.select_date_end)
        self.calendar = CalendarDialog(date_range=date_range, parent=self)
        self.calendar.selected_date_signal.connect(self.set_date)
        self.btn_ok.clicked.connect(self.ok)
        self.btn_ok.setEnabled(False)
        self.btn_ok_num = 0
        self.btn_cancel.clicked.connect(lambda x: self.close())
        self.start_time_flag = True
        self.start_timestamp = 0
        self.end_timestamp = 0

    def set_date(self, timestamp):
        if self.start_time_flag:
            self.start_timestamp = timestamp
            date_object = datetime.fromtimestamp(timestamp)
            str_start = date_object.strftime("%Y-%m-%d")
            self.toolButton_start_time.setText(str_start)
            self.btn_ok_num += 1
        else:
            date_object = datetime.fromtimestamp(timestamp)
            str_start = date_object.strftime("%Y-%m-%d")
            self.end_timestamp = timestamp + 86399
            self.toolButton_end_time.setText(str_start)
            self.btn_ok_num += 1
        if self.btn_ok_num == 2:
            self.btn_ok.setEnabled(True)

    def ok(self):
        date_range = (self.start_timestamp, self.end_timestamp)
        self.date_range_signal.emit(date_range)
        self.close()

    def select_date_start(self):
        self.start_time_flag = True
        self.calendar.set_start_date()
        self.calendar.show()

    def select_date_end(self):
        self.start_time_flag = False
        self.calendar.set_end_date()
        self.calendar.show()


if __name__ == '__main__':
    import sys
    from datetime import datetime

    app = QApplication(sys.argv)
    # 设置日期范围
    start_date = datetime(2023, 12, 11)
    end_date = datetime(2024, 1, 9)
    date_range = (start_date.date(), end_date.date())
    ex = TimeRangeDialog(date_range=date_range)
    ex.show()
    sys.exit(app.exec_())