data_checks.py

import logging

from django.contrib.contenttypes.models import ContentType
from django.db.models import F
from django.db.models.query_utils import Q
from django.utils.translation import gettext as _

from calendarweek import CalendarWeek

from aleksis.apps.chronos.util.date import week_weekday_to_date
from aleksis.core.data_checks import DATA_CHECK_REGISTRY, DataCheck, IgnoreSolveOption, SolveOption


class DeleteRelatedObjectSolveOption(SolveOption):
    name = "delete"
    verbose_name = _("Delete object")

    @classmethod
    def solve(cls, check_result: "DataCheckResult"):
        check_result.related_object.delete()
        check_result.delete()


class SetGroupsWithCurrentGroupsSolveOption(SolveOption):
    name = "set_groups_of_person"
    verbose_name = _("Set current groups")

    @classmethod
    def solve(cls, check_result: "DataCheckResult"):
        person = check_result.related_object.person
        check_result.related_object.groups_of_person.set(person.member_of.all())
        check_result.delete()


@DATA_CHECK_REGISTRY.register
class NoPersonalNotesInCancelledLessonsDataCheck(DataCheck):
    name = "no_personal_notes_in_cancelled_lessons"
    verbose_name = _("Ensure that there are no personal notes in cancelled lessons")
    problem_name = _("The personal note is related to a cancelled lesson.")
    solve_options = {
        DeleteRelatedObjectSolveOption.name: DeleteRelatedObjectSolveOption,
        IgnoreSolveOption.name: IgnoreSolveOption,
    }

    @classmethod
    def check_data(cls):
        from aleksis.core.models import DataCheckResult

        from .models import PersonalNote

        ct = ContentType.objects.get_for_model(PersonalNote)

        personal_notes = PersonalNote.objects.filter(
            lesson_period__substitutions__cancelled=True,
            lesson_period__substitutions__week=F("week"),
            lesson_period__substitutions__year=F("year"),
        ).prefetch_related("lesson_period", "lesson_period__substitutions")

        for note in personal_notes:
            logging.info(f"Check personal note {note}")
            sub = note.lesson_period.get_substitution(CalendarWeek(week=note.week, year=note.year))
            result = DataCheckResult.objects.get_or_create(
                check=cls.name, content_type=ct, object_id=note.id
            )


@DATA_CHECK_REGISTRY.register
class NoGroupsOfPersonsSetInPersonalNotesDataCheck(DataCheck):
    name = "no_groups_of_persons_set_in_personal_notes"
    verbose_name = _("Ensure that 'groups_of_person' is set for every personal note")
    problem_name = _("The personal note has no group in 'groups_of_person'.")
    solve_options = {
        SetGroupsWithCurrentGroupsSolveOption.name: SetGroupsWithCurrentGroupsSolveOption,
        DeleteRelatedObjectSolveOption.name: DeleteRelatedObjectSolveOption,
        IgnoreSolveOption.name: IgnoreSolveOption,
    }

    @classmethod
    def check_data(cls):
        from aleksis.core.models import DataCheckResult

        from .models import PersonalNote

        ct = ContentType.objects.get_for_model(PersonalNote)

        personal_notes = PersonalNote.objects.filter(groups_of_person__isnull=True)

        for note in personal_notes:
            logging.info(f"Check personal note {note}")
            result = DataCheckResult.objects.get_or_create(
                check=cls.name, content_type=ct, object_id=note.id
            )


@DATA_CHECK_REGISTRY.register
class LessonDocumentationOnHolidaysDataCheck(DataCheck):
    """Checks for lesson documentation objects on holidays.

    This ignores empty lesson documentation as they are created by default.
    """

    name = "lesson_documentation_on_holidays"
    verbose_name = _("Ensure that there are no filled out lesson documentations on holidays")
    problem_name = _("The lesson documentation is on holidays.")
    solve_options = {
        DeleteRelatedObjectSolveOption.name: DeleteRelatedObjectSolveOption,
        IgnoreSolveOption.name: IgnoreSolveOption,
    }

    @classmethod
    def check_data(cls):
        from aleksis.apps.chronos.models import Holiday
        from aleksis.core.models import DataCheckResult

        from .models import LessonDocumentation

        ct = ContentType.objects.get_for_model(LessonDocumentation)
        holidays = list(Holiday.objects.all())

        documentations = LessonDocumentation.objects.filter(
            ~Q(topic="") | ~Q(group_note="") | ~Q(homework="")
        )

        for doc in documentations:
            logging.info(f"Check lesson documentation {doc}")
            day = week_weekday_to_date(doc.calendar_week, doc.lesson_period.period.weekday)
            if len(list(filter(lambda h: h.date_start <= day <= h.date_end, holidays))) > 0:
                logging.info("  ... on holidays")
                result = DataCheckResult.objects.get_or_create(
                    check=cls.name, content_type=ct, object_id=doc.id
                )