import pytest

from leonida.annotations import KINDS, AnnotationError, load_annotations, parse_annotations


def test_missing_file_and_comment_only_file_mean_no_entries_and_no_grid(tmp_path):
    assert load_annotations(tmp_path / "fehlt.toml").annotations == []
    (tmp_path / "leer.toml").write_text("# nur Kommentare\n")
    parsed = load_annotations(tmp_path / "leer.toml")
    assert parsed.annotations == [] and parsed.keep == [] and parsed.grid is None


def test_all_spec_kinds_are_known():
    assert set(KINDS) == {"text_white", "text_red", "marker", "symbol", "street_name", "region"}


def test_entries_parse_with_normalised_boxes_and_chunk_names():
    parsed = parse_annotations("""
[grid]
spacing = 500
width = 6

[[annotation]]
name = "VICE BEACH (MIAMI BEACH)"
kind = "text_white"
box = [[1900, 705], [1350, 870]]

[[annotation]]
name = "Rest am Marker S2/32"
kind = "region"
polygon = [[1905, 640], [1925, 640], [1925, 615], [1905, 615]]
reason = "vom Nutzer markiert"

[[keep]]
box = [[-856, 194], [-794, -1]]
reason = "knallrotes Gebäude, echt"
""")
    first, second = parsed.annotations
    assert (first.index, first.kind, first.box) == (1, "text_white", (1350.0, 705.0, 1900.0, 870.0))
    assert first.chunk == "K7"
    assert second.polygon[0] == (1905.0, 640.0) and second.box is None and second.reason == "vom Nutzer markiert"
    assert second.chunk == "L8"
    assert parsed.keep[0].box == (-856.0, -1.0, -794.0, 194.0)
    assert (parsed.grid.spacing, parsed.grid.width) == (500.0, 6.0)


@pytest.mark.parametrize("body, message", [
    ('name = "X"\nkind = "banner"\nbox = [[0, 0], [10, 10]]', "unbekanntes kind 'banner'"),
    ('kind = "marker"\nbox = [[0, 0], [10, 10]]', "Feld 'name' fehlt oder ist leer"),
    ('name = "X"\nkind = "marker"\nbox = [[0, 0], [10, 10]]\nhight = 3', "Feld 'hight' gibt es nicht"),
    ('name = "X"\nkind = "marker"', "Feld 'box' fehlt"),
    ('name = "X"\nkind = "marker"\nbox = [1, 2]', "Feld 'box' muss zwei Ecken"),
    ('name = "X"\nkind = "marker"\nbox = [[0, 0], [1, 5]]', "mindestens 2 m"),
    ('name = "X"\nkind = "marker"\nbox = [[1900, 0], [2100, 50]]', "außerhalb des Ausschnitts"),
    ('name = "X"\nkind = "marker"\npolygon = [[0, 0], [10, 0], [10, 10]]', "Feld 'polygon' gibt es nur bei region"),
    ('name = "X"\nkind = "region"\nbox = [[0, 0], [10, 10]]\npolygon = [[0, 0], [10, 0], [10, 10]]', "genau eines der Felder"),
    ('name = "X"\nkind = "region"\npolygon = [[0, 0], [10, 10], [10, 0], [0, 10]]', "ohne sich schneidende Kanten"),
    ('name = "X"\nkind = "region"\npolygon = [[0, 0], [10, 10]]', "mindestens 3 Punkte"),
    ('name = "X"\nkind = "marker"\nbox = [[0, 0], [10, 10]]\nreason = 7', "reason muss Text sein"),
])
def test_form_errors_stop_with_entry_number_and_field(body, message):
    text = ('[[annotation]]\nname = "OK"\nkind = "marker"\nbox = [[0, 0], [10, 10]]\n\n'
            f'[[annotation]]\n{body}\n')
    with pytest.raises(AnnotationError, match="Beschriftung 2") as err:
        parse_annotations(text)
    assert message in str(err.value)


def test_keep_needs_a_reason():
    with pytest.raises(AnnotationError, match="Ausnahme 1: Feld 'reason' fehlt oder ist leer"):
        parse_annotations("[[keep]]\nbox = [[0, 0], [10, 10]]\n")


@pytest.mark.parametrize("body, message", [
    ("spacing = 0\nwidth = 6", "Gitternetz: Feld 'spacing' muss eine Zahl größer als 0 sein"),
    ("spacing = 500", "Gitternetz: Feld 'width' fehlt"),
    ("spacing = 500\nwidth = 6\ncolour = 1", "Gitternetz: Feld 'colour' gibt es nicht"),
])
def test_grid_form_errors(body, message):
    with pytest.raises(AnnotationError, match=message):
        parse_annotations(f"[grid]\n{body}\n")


def test_broken_toml_and_unknown_sections_are_form_errors():
    with pytest.raises(AnnotationError, match="kein gültiges TOML"):
        parse_annotations("[[annotation]\n")
    with pytest.raises(AnnotationError, match="unbekannter Abschnitt 'label'"):
        parse_annotations('[[label]]\nname = "X"\n')