"""Smoke tests for the constraint-rule dataclasses."""

from app.rules import (
    RoomRequiresTypeRule, RoomUnavailableRule,
    SubjectPreferredPeriodRule, TeacherExcludedRoomRule,
    TeacherUnavailableDayRule, TeacherUnavailableWindowRule,
)


def test_rules_construct_with_expected_fields() -> None:
    rules = [
        TeacherUnavailableDayRule(teacher_id="t1", day_of_week=1, is_hard=True, weight=100),
        TeacherUnavailableWindowRule(teacher_id="t1", day_of_week=2, start_time="13:00", end_time="17:00", is_hard=True, weight=100),
        TeacherExcludedRoomRule(teacher_id="t1", room_id="r1", is_hard=True, weight=100),
        RoomUnavailableRule(room_id="r1", day_of_week=3, period_index=4, is_hard=True, weight=100),
        SubjectPreferredPeriodRule(subject_id="s1", period_from=1, period_to=4, is_hard=False, weight=40),
        RoomRequiresTypeRule(subject_id="s1", room_type="Sporthalle", is_hard=True, weight=100),
    ]
    assert len(rules) == 6


def test_rules_are_hashable_frozen() -> None:
    # Frozen dataclasses are hashable, important when Timefold inserts them
    # into hash-based caches inside the solver.
    rule = TeacherUnavailableDayRule(teacher_id="t1", day_of_week=1, is_hard=True, weight=100)
    s = {rule, rule}
    assert len(s) == 1