from sqlmodel import select

from app.models import Edition, Volunteer
from app.seed import DEMO_EDITION_NAME, build


def test_build_creates_a_realistic_dataset(session):
    summary = build(session)

    assert summary.volunteers == 120
    assert summary.positions == 15
    assert summary.shifts > 40
    assert summary.assignments > 100
    assert summary.understaffed_shifts >= 3  # « quelques trous d'effectif »
    assert summary.blocking == 0  # aucune violation bloquante
    # Au moins deux règles d'avertissement représentées, quelques alertes.
    assert len(summary.warnings) >= 2
    assert sum(summary.warnings.values()) >= 3

    edition = session.exec(
        select(Edition).where(Edition.name == DEMO_EDITION_NAME)
    ).one()
    volunteers = session.exec(
        select(Volunteer).where(Volunteer.edition_id == edition.id)
    ).all()
    assert len(volunteers) == 120


def test_build_is_deterministic_and_idempotent(session):
    first = build(session)
    second = build(session)

    assert (second.volunteers, second.positions, second.shifts) == (
        first.volunteers,
        first.positions,
        first.shifts,
    )
    assert second.assignments == first.assignments
    assert second.understaffed_shifts == first.understaffed_shifts
    assert dict(second.warnings) == dict(first.warnings)

    editions = session.exec(
        select(Edition).where(Edition.name == DEMO_EDITION_NAME)
    ).all()
    assert len(editions) == 1