from backend.core.notes_keyword_router import classify_note_cascade
from backend.core.notes_routing import parse_explicit_section_prefix


def test_explicit_prefix_comma():
    assert parse_explicit_section_prefix("G1, garage roof pitched design") == (
        "G1",
        "garage roof pitched design",
    )


def test_explicit_prefix_colon():
    assert parse_explicit_section_prefix("D9: External walls with step cracking") == (
        "D9",
        "External walls with step cracking",
    )


def test_explicit_prefix_dash():
    assert parse_explicit_section_prefix("D4 - cavity wall with render loss") == (
        "D4",
        "cavity wall with render loss",
    )


def test_cascade_external_walls_routes_d4():
    sid, score, body = classify_note_cascade(
        "External walls: 300mm cavity wall construction with step cracking"
    )
    assert sid == "D4"
    assert score == 1.0
    assert "cavity wall" in body.lower()


def test_cascade_rainwater_routes_d3_not_d4():
    sid, _, _ = classify_note_cascade(
        "Rainwater fittings: UPVC gutters and gullies present. Rainwater downpipe discharges below ground."
    )
    assert sid == "D3"


def test_cascade_g1_prefix_strips_and_routes_g1():
    sid, score, body = classify_note_cascade("G1, garage roof pitched design with concrete tiles")
    assert sid == "G1"
    assert score == 1.0
    assert body == "garage roof pitched design with concrete tiles"
    assert not body.upper().startswith("G1")


def test_cascade_g1_garage_roof_not_d2():
    sid, _, _ = classify_note_cascade("Garage roof pitched design with concrete tiles")
    assert sid == "G1"