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from random import randint
from unittest.mock import patch

import pytest
from flask_appbuilder.security.sqla.models import User
from freezegun import freeze_time
from freezegun.api import FakeDatetime

from superset.extensions import db
from superset.reports.models import ReportScheduleType
from superset.tasks.scheduler import execute, scheduler
from tests.integration_tests.reports.utils import insert_report_schedule
from tests.integration_tests.test_app import app


@pytest.fixture
def owners(get_user) -> list[User]:
    return [get_user("admin")]


@pytest.mark.usefixtures("owners")
@patch("superset.tasks.scheduler.execute.apply_async")
def test_scheduler_celery_timeout_ny(execute_mock, owners):
    """
    Reports scheduler: Test scheduler setting celery soft and hard timeout
    """
    with app.app_context():
        report_schedule = insert_report_schedule(
            type=ReportScheduleType.ALERT,
            name="report",
            crontab="0 4 * * *",
            timezone="America/New_York",
            owners=owners,
        )

        with freeze_time("2020-01-01T09:00:00Z"):
            scheduler()
            assert execute_mock.call_args[1]["soft_time_limit"] == 3601
            assert execute_mock.call_args[1]["time_limit"] == 3610
        db.session.delete(report_schedule)
        db.session.commit()


@pytest.mark.usefixtures("owners")
@patch("superset.tasks.scheduler.execute.apply_async")
def test_scheduler_celery_no_timeout_ny(execute_mock, owners):
    """
    Reports scheduler: Test scheduler setting celery soft and hard timeout
    """
    with app.app_context():
        app.config["ALERT_REPORTS_WORKING_TIME_OUT_KILL"] = False
        report_schedule = insert_report_schedule(
            type=ReportScheduleType.ALERT,
            name="report",
            crontab="0 4 * * *",
            timezone="America/New_York",
            owners=owners,
        )

        with freeze_time("2020-01-01T09:00:00Z"):
            scheduler()
            assert execute_mock.call_args[1] == {"eta": FakeDatetime(2020, 1, 1, 9, 0)}
        db.session.delete(report_schedule)
        db.session.commit()
        app.config["ALERT_REPORTS_WORKING_TIME_OUT_KILL"] = True


@pytest.mark.usefixtures("owners")
@patch("superset.tasks.scheduler.execute.apply_async")
def test_scheduler_celery_timeout_utc(execute_mock, owners):
    """
    Reports scheduler: Test scheduler setting celery soft and hard timeout
    """
    with app.app_context():
        report_schedule = insert_report_schedule(
            type=ReportScheduleType.ALERT,
            name="report",
            crontab="0 9 * * *",
            timezone="UTC",
            owners=owners,
        )

        with freeze_time("2020-01-01T09:00:00Z"):
            scheduler()
            assert execute_mock.call_args[1]["soft_time_limit"] == 3601
            assert execute_mock.call_args[1]["time_limit"] == 3610
        db.session.delete(report_schedule)
        db.session.commit()


@pytest.mark.usefixtures("owners")
@patch("superset.tasks.scheduler.execute.apply_async")
def test_scheduler_celery_no_timeout_utc(execute_mock, owners):
    """
    Reports scheduler: Test scheduler setting celery soft and hard timeout
    """
    with app.app_context():
        app.config["ALERT_REPORTS_WORKING_TIME_OUT_KILL"] = False
        report_schedule = insert_report_schedule(
            type=ReportScheduleType.ALERT,
            name="report",
            crontab="0 9 * * *",
            timezone="UTC",
            owners=owners,
        )

        with freeze_time("2020-01-01T09:00:00Z"):
            scheduler()
            assert execute_mock.call_args[1] == {"eta": FakeDatetime(2020, 1, 1, 9, 0)}
        db.session.delete(report_schedule)
        db.session.commit()
        app.config["ALERT_REPORTS_WORKING_TIME_OUT_KILL"] = True


@pytest.mark.usefixtures("owners")
@patch("superset.tasks.scheduler.is_feature_enabled")
@patch("superset.tasks.scheduler.execute.apply_async")
def test_scheduler_feature_flag_off(execute_mock, is_feature_enabled, owners):
    """
    Reports scheduler: Test scheduler with feature flag off
    """
    with app.app_context():
        is_feature_enabled.return_value = False
        report_schedule = insert_report_schedule(
            type=ReportScheduleType.ALERT,
            name="report",
            crontab="0 9 * * *",
            timezone="UTC",
            owners=owners,
        )

        with freeze_time("2020-01-01T09:00:00Z"):
            scheduler()
            execute_mock.assert_not_called()
        db.session.delete(report_schedule)
        db.session.commit()


@pytest.mark.usefixtures("owners")
@patch("superset.commands.report.execute.AsyncExecuteReportScheduleCommand.__init__")
@patch("superset.commands.report.execute.AsyncExecuteReportScheduleCommand.run")
@patch("superset.tasks.scheduler.execute.update_state")
def test_execute_task(update_state_mock, command_mock, init_mock, owners):
    from superset.commands.report.exceptions import ReportScheduleUnexpectedError

    with app.app_context():
        report_schedule = insert_report_schedule(
            type=ReportScheduleType.ALERT,
            name=f"report-{randint(0,1000)}",
            crontab="0 4 * * *",
            timezone="America/New_York",
            owners=owners,
        )
        init_mock.return_value = None
        command_mock.side_effect = ReportScheduleUnexpectedError("Unexpected error")
        with freeze_time("2020-01-01T09:00:00Z"):
            execute(report_schedule.id)
            update_state_mock.assert_called_with(state="FAILURE")

        db.session.delete(report_schedule)
        db.session.commit()


@pytest.mark.usefixtures("owners")
@patch("superset.commands.report.execute.AsyncExecuteReportScheduleCommand.__init__")
@patch("superset.commands.report.execute.AsyncExecuteReportScheduleCommand.run")
@patch("superset.tasks.scheduler.execute.update_state")
@patch("superset.utils.log.logger")
def test_execute_task_with_command_exception(
    logger_mock, update_state_mock, command_mock, init_mock, owners
):
    from superset.commands.exceptions import CommandException

    with app.app_context():
        report_schedule = insert_report_schedule(
            type=ReportScheduleType.ALERT,
            name=f"report-{randint(0,1000)}",
            crontab="0 4 * * *",
            timezone="America/New_York",
            owners=owners,
        )
        init_mock.return_value = None
        command_mock.side_effect = CommandException("Unexpected error")
        with freeze_time("2020-01-01T09:00:00Z"):
            execute(report_schedule.id)
            update_state_mock.assert_called_with(state="FAILURE")
            logger_mock.exception.assert_called_with(
                "A downstream exception occurred while generating a report: None. Unexpected error",
                exc_info=True,
            )

        db.session.delete(report_schedule)
        db.session.commit()