"""Element-label prefix routing and screenshot regression cases."""

from backend.core.notes_keyword_router import classify_note_cascade
from backend.core.notes_routing import parse_element_label_prefix, route_lines_to_l3_sections

MAIN_ROOF = (
    "Main roof: Pitched valley-style roof with imitation slate covering. "
    "Some tiles have slipped, lifted, or are laid flat. Valley gutters appear to be in good condition. "
    "One ridge tile is broken. Repointing is required and verges are cracked."
)

RAINWATER = (
    "Rainwater fittings: UPVC gutters and gullies present. A blockage was noted. "
    "The point of discharge is unknown. Front right rainwater downpipe discharges below ground. "
    "Some fittings are brittle and faded."
)


def test_element_label_main_roof():
    assert parse_element_label_prefix(MAIN_ROOF) == ("D2", MAIN_ROOF)


def test_element_label_rainwater_fittings():
    assert parse_element_label_prefix(RAINWATER) == ("D3", RAINWATER)


def test_screenshot_main_roof_routes_d2_not_d3():
    sid, score, _ = classify_note_cascade(MAIN_ROOF)
    assert sid == "D2"
    assert score == 1.0


def test_screenshot_rainwater_routes_d3_not_d4():
    sid, score, _ = classify_note_cascade(RAINWATER)
    assert sid == "D3"
    assert score == 1.0


def test_route_lines_batch():
    routed, unmatched = route_lines_to_l3_sections([MAIN_ROOF, RAINWATER])
    assert unmatched == []
    assert MAIN_ROOF in routed["D2"]
    assert RAINWATER in routed["D3"]