from datetime import datetime, timedelta

from module.logger import logger
from module.ocr.ocr import Duration
from tasks.assignment.assets.assets_assignment_claim import *
from tasks.assignment.assets.assets_assignment_dispatch import EMPTY_SLOT
from tasks.assignment.assets.assets_assignment_ui import DISPATCHED
from tasks.assignment.dispatch import AssignmentDispatch
from tasks.assignment.keywords import AssignmentEntry


class AssignmentClaim(AssignmentDispatch):
    def claim(self, assignment: AssignmentEntry, duration_expected: int, should_redispatch: bool):
        """
        Args:
            assignment (AssignmentEntry):
            duration_expected (int): user specified duration
            should_redispatch (bool):

        Pages:
            in: CLAIM
            out: DISPATCHED or EMPTY_SLOT
        """
        redispatched = False
        self._wait_for_report()
        if should_redispatch:
            redispatched = self._is_duration_expected(duration_expected)
        self._exit_report(redispatched)
        if redispatched:
            self._wait_until_assignment_started()
            self.dispatched[assignment] = datetime.now(
            ) + timedelta(hours=duration_expected)
        elif should_redispatch:
            # Re-select duration and dispatch
            self.dispatch(assignment, duration_expected)

    def _wait_for_report(self):
        """
        Pages:
            in: CLAIM
            out: REDISPATCH
        """
        skip_first_screenshot = True
        while 1:
            if skip_first_screenshot:
                skip_first_screenshot = False
            else:
                self.device.screenshot()
            # End
            if self.appear(REDISPATCH):
                logger.info('Assignment report appears')
                break
            # Claim rewards
            if self.appear_then_click(CLAIM, interval=2):
                continue

    def _exit_report(self, should_redispatch: bool):
        """
        Args:
            should_redispatch (bool): determined by user config and duration in report

        Pages:
            in: CLOSE_REPORT and REDISPATCH
            out: EMPTY_SLOT or DISPATCHED
        """
        click_button, check_button = CLOSE_REPORT, EMPTY_SLOT
        if should_redispatch:
            click_button, check_button = REDISPATCH, DISPATCHED
        skip_first_screenshot = True
        while 1:
            if skip_first_screenshot:
                skip_first_screenshot = False
            else:
                self.device.screenshot()
            # End
            if self.appear(check_button):
                logger.info('Assignment report is closed')
                break
            # Close report
            if self.appear_then_click(click_button, interval=2):
                continue

    def _is_duration_expected(self, duration: int) -> bool:
        """
        Check whether duration in assignment report page
        is the same as user specified

        Args:
            duration (int): user specified duration

        Returns:
            bool: If same.
        """
        duration_reported: timedelta = Duration(
            OCR_ASSIGNMENT_REPORT_TIME).ocr_single_line(self.device.image)
        return duration_reported.total_seconds() == duration*3600