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from datetime import timedelta
from typing import Optional, Union

from appium.options.common.supports_capabilities import SupportsCapabilities

APP_WAIT_DURATION = 'appWaitDuration'


class AppWaitDurationOption(SupportsCapabilities):
    @property
    def app_wait_duration(self) -> Optional[timedelta]:
        """
        Identifier of the app package to wait for.
        """
        value = self.get_capability(APP_WAIT_DURATION)
        return None if value is None else timedelta(milliseconds=value)

    @app_wait_duration.setter
    def app_wait_duration(self, value: Union[timedelta, int]) -> None:
        """
        Maximum amount of time to wait until the application under test is started
        (e.g. an activity returns the control to the caller). 20000 ms by default.
        """
        self.set_capability(
            APP_WAIT_DURATION, int(value.total_seconds() * 1000) if isinstance(value, timedelta) else value
        )