from datetime import date, datetime

from freezegun import freeze_time
from pytz import utc

from odoo.addons.test_resource.tests.common import TestResourceCommon


class TestTimezones(TestResourceCommon):
    def setUp(self):
        super().setUp()

        self.tz1 = 'Etc/GMT+6'
        self.tz2 = 'Europe/Brussels'
        self.tz3 = 'Etc/GMT-10'
        self.tz4 = 'Etc/GMT+10'

    def test_work_hours_count(self):
        # When no timezone => UTC
        count = self.calendar_jean.get_work_hours_count(
            self.datetime_tz(2018, 4, 10, 8, 0, 0),
            self.datetime_tz(2018, 4, 10, 12, 0, 0),
        )
        self.assertEqual(count, 4)

        # This timezone is not the same as the calendar's one
        count = self.calendar_jean.get_work_hours_count(
            self.datetime_tz(2018, 4, 10, 8, 0, 0, tzinfo=self.tz1),
            self.datetime_tz(2018, 4, 10, 12, 0, 0, tzinfo=self.tz1),
        )
        self.assertEqual(count, 0)

        # Using two different timezones
        # 10-04-2018 06:00:00 - 10-04-2018 02:00:00
        count = self.calendar_jean.get_work_hours_count(
            self.datetime_tz(2018, 4, 10, 8, 0, 0, tzinfo=self.tz2),
            self.datetime_tz(2018, 4, 10, 12, 0, 0, tzinfo=self.tz3),
        )
        self.assertEqual(count, 0)

        # Using two different timezones
        # 2018-04-10 06:00:00 - 2018-04-10 22:00:00
        count = self.calendar_jean.get_work_hours_count(
            self.datetime_tz(2018, 4, 10, 8, 0, 0, tzinfo=self.tz2),
            self.datetime_tz(2018, 4, 10, 12, 0, 0, tzinfo=self.tz4),
        )
        self.assertEqual(count, 8)

    def test_plan_hours(self):
        dt = self.calendar_jean.plan_hours(10, self.datetime_tz(2018, 4, 10, 8, 0, 0))
        self.assertEqual(dt, self.datetime_tz(2018, 4, 11, 10, 0, 0))

        dt = self.calendar_jean.plan_hours(10, self.datetime_tz(2018, 4, 10, 8, 0, 0, tzinfo=self.tz4))
        self.assertEqual(dt, self.datetime_tz(2018, 4, 11, 22, 0, 0, tzinfo=self.tz4))

    def test_plan_days(self):
        dt = self.calendar_jean.plan_days(2, self.datetime_tz(2018, 4, 10, 8, 0, 0))
        self.assertEqual(dt, self.datetime_tz(2018, 4, 11, 14, 0, 0))

        # We lose one day because of timezone
        dt = self.calendar_jean.plan_days(2, self.datetime_tz(2018, 4, 10, 8, 0, 0, tzinfo=self.tz4))
        self.assertEqual(dt, self.datetime_tz(2018, 4, 12, 4, 0, 0, tzinfo=self.tz4))

    def test_work_data(self):
        # 09-04-2018 10:00:00 - 13-04-2018 18:00:00
        data = self.jean._get_work_days_data_batch(
            self.datetime_tz(2018, 4, 9, 8, 0, 0),
            self.datetime_tz(2018, 4, 13, 16, 0, 0),
        )[self.jean.id]
        self.assertEqual(data, {'days': 4.75, 'hours': 38})

        # 09-04-2018 00:00:00 - 13-04-2018 08:00:00
        data = self.jean._get_work_days_data_batch(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz3),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz3),
        )[self.jean.id]
        self.assertEqual(data, {'days': 4, 'hours': 32})

        # 09-04-2018 08:00:00 - 14-04-2018 12:00:00
        data = self.jean._get_work_days_data_batch(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz2),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz4),
        )[self.jean.id]
        self.assertEqual(data, {'days': 5, 'hours': 40})

        # Jules with 2 weeks calendar
        # 02-04-2018 00:00:00 - 6-04-2018 23:59:59
        data = self.jules._get_work_days_data_batch(
            self.datetime_tz(2018, 4, 2, 0, 0, 0, tzinfo=self.jules.tz),
            self.datetime_tz(2018, 4, 6, 23, 59, 59, tzinfo=self.jules.tz),
        )[self.jules.id]
        self.assertEqual(data, {'days': 4, 'hours': 30})

        # Jules with 2 weeks calendar
        # 02-04-2018 00:00:00 - 14-04-2018 23:59:59
        data = self.jules._get_work_days_data_batch(
            self.datetime_tz(2018, 4, 2, 0, 0, 0, tzinfo=self.jules.tz),
            self.datetime_tz(2018, 4, 14, 23, 59, 59, tzinfo=self.jules.tz),
        )[self.jules.id]
        self.assertEqual(data, {'days': 6, 'hours': 46})

        # Jules with 2 weeks calendar
        # 12-29-2014 00:00:00 - 27-12-2019 23:59:59 => 261 weeks
        # 130 weeks type 1: 131*4 = 524 days and 131*30 = 3930 hours
        # 131 weeks type 2: 130*2 = 260 days and 130*16 = 2080 hours
        data = self.jules._get_work_days_data_batch(
            self.datetime_tz(2014, 12, 29, 0, 0, 0, tzinfo=self.jules.tz),
            self.datetime_tz(2019, 12, 27, 23, 59, 59, tzinfo=self.jules.tz),
        )[self.jules.id]
        self.assertEqual(data, {'days': 784, 'hours': 6010})

    def test_leave_data(self):
        self.env['resource.calendar.leaves'].create({
            'name': '',
            'calendar_id': self.jean.resource_calendar_id.id,
            'resource_id': self.jean.resource_id.id,
            'date_from': self.datetime_str(2018, 4, 9, 8, 0, 0, tzinfo=self.tz2),
            'date_to': self.datetime_str(2018, 4, 9, 14, 0, 0, tzinfo=self.tz2),
        })

        # 09-04-2018 10:00:00 - 13-04-2018 18:00:00
        data = self.jean._get_leave_days_data_batch(
            self.datetime_tz(2018, 4, 9, 8, 0, 0),
            self.datetime_tz(2018, 4, 13, 16, 0, 0),
        )[self.jean.id]
        self.assertEqual(data, {'days': 0.5, 'hours': 4})

        # 09-04-2018 00:00:00 - 13-04-2018 08:00:00
        data = self.jean._get_leave_days_data_batch(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz3),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz3),
        )[self.jean.id]
        self.assertEqual(data, {'days': 0.75, 'hours': 6})

        # 09-04-2018 08:00:00 - 14-04-2018 12:00:00
        data = self.jean._get_leave_days_data_batch(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz2),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz4),
        )[self.jean.id]
        self.assertEqual(data, {'days': 0.75, 'hours': 6})

    def test_leaves(self):
        leave = self.env['resource.calendar.leaves'].create({
            'name': '',
            'calendar_id': self.jean.resource_calendar_id.id,
            'resource_id': self.jean.resource_id.id,
            'date_from': self.datetime_str(2018, 4, 9, 8, 0, 0, tzinfo=self.tz2),
            'date_to': self.datetime_str(2018, 4, 9, 14, 0, 0, tzinfo=self.tz2),
        })

        # 09-04-2018 10:00:00 - 13-04-2018 18:00:00
        leaves = self.jean.list_leaves(
            self.datetime_tz(2018, 4, 9, 8, 0, 0),
            self.datetime_tz(2018, 4, 13, 16, 0, 0),
        )
        self.assertEqual(leaves, [(date(2018, 4, 9), 4, leave)])

        # 09-04-2018 00:00:00 - 13-04-2018 08:00:00
        leaves = self.jean.list_leaves(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz3),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz3),
        )
        self.assertEqual(leaves, [(date(2018, 4, 9), 6, leave)])

        # 09-04-2018 08:00:00 - 14-04-2018 12:00:00
        leaves = self.jean.list_leaves(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz2),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz4),
        )
        self.assertEqual(leaves, [(date(2018, 4, 9), 6, leave)])

    def test_works(self):
        work = self.jean._list_work_time_per_day(
            self.datetime_tz(2018, 4, 9, 8, 0, 0),
            self.datetime_tz(2018, 4, 13, 16, 0, 0),
        )[self.jean.id]
        self.assertEqual(work, [
            (date(2018, 4, 9), 6),
            (date(2018, 4, 10), 8),
            (date(2018, 4, 11), 8),
            (date(2018, 4, 12), 8),
            (date(2018, 4, 13), 8),
        ])

        work = self.jean._list_work_time_per_day(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz3),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz3),
        )[self.jean.id]
        self.assertEqual(len(work), 4)
        self.assertEqual(work, [
            (date(2018, 4, 9), 8),
            (date(2018, 4, 10), 8),
            (date(2018, 4, 11), 8),
            (date(2018, 4, 12), 8),
        ])

        work = self.jean._list_work_time_per_day(
            self.datetime_tz(2018, 4, 9, 8, 0, 0, tzinfo=self.tz2),
            self.datetime_tz(2018, 4, 13, 16, 0, 0, tzinfo=self.tz4),
        )[self.jean.id]
        self.assertEqual(work, [
            (date(2018, 4, 9), 8),
            (date(2018, 4, 10), 8),
            (date(2018, 4, 11), 8),
            (date(2018, 4, 12), 8),
            (date(2018, 4, 13), 8),
        ])

    @freeze_time("2022-09-21 15:30:00", tz_offset=-10)
    def test_unavailable_intervals(self):
        resource = self.env['resource.resource'].create({
            'name': 'resource',
            'tz': self.tz3,
        })
        intervals = resource._get_unavailable_intervals(datetime(2022, 9, 21), datetime(2022, 9, 22))
        self.assertEqual(next(iter(intervals.values())), [
            (datetime(2022, 9, 21, 0, 0, tzinfo=utc), datetime(2022, 9, 21, 6, 0, tzinfo=utc)),
            (datetime(2022, 9, 21, 10, 0, tzinfo=utc), datetime(2022, 9, 21, 11, 0, tzinfo=utc)),
            (datetime(2022, 9, 21, 15, 0, tzinfo=utc), datetime(2022, 9, 22, 0, 0, tzinfo=utc)),
        ])

    def test_flexible_resource_leave_interval(self):
        """
        Test whole day off for a flexible resource.
        The standard 8 - 17 leave should be converted to a whole day leave interval for the flexible resource.
        """

        flexible_calendar = self.env['resource.calendar'].create({
            'name': 'Flex Calendar',
            'tz': 'UTC',
            'flexible_hours': True,
            'full_time_required_hours': 40,
            'hours_per_day': 8,
            'hours_per_week': 40,
        })
        flex_resource = self.env['resource.resource'].create({
            'name': 'Test FlexResource',
            'calendar_id': flexible_calendar.id,
        })
        self.env['resource.calendar.leaves'].create({
            'name': 'Standard Time Off',
            'calendar_id': flexible_calendar.id,
            'resource_id': flex_resource.id,
            'date_from': '2025-03-07 08:00:00',
            'date_to': '2025-03-07 17:00:00',
        })

        start_dt = datetime(2025, 3, 7, 8, 0, 0, tzinfo=utc)
        end_dt = datetime(2025, 3, 7, 16, 00, 00, 00, tzinfo=utc)

        intervals = flexible_calendar._leave_intervals_batch(start_dt, end_dt, [flex_resource])
        intervals_list = list(intervals[flex_resource.id])
        self.assertEqual(len(intervals_list), 1, "There should be one leave interval")
        interval = intervals_list[0]
        self.assertEqual(interval[0], start_dt, "The start of the interval should be 08:00:00")
        self.assertEqual(interval[1], end_dt, "The end of the interval should be 16:00:00")
