from types import SimpleNamespace

from phase_z2_pipeline import (
    _build_verbatim_cards_n_grid,
    _frame_expansion_trace,
)


def _unit_with_groups(count: int):
    raw = "\n\n".join(
        f"- **Group {i}**\n  - Item {i}"
        for i in range(1, count + 1)
    )
    return SimpleNamespace(title="Title", raw_content=raw)


def test_task27_repeatable_frame_reports_covered_via_expand():
    payload = _build_verbatim_cards_n_grid(
        _unit_with_groups(6),
        slot_count=4,
        label_pattern="quadrant_{n}_label",
        body_pattern="quadrant_{n}_body",
    )

    trace = _frame_expansion_trace("bim_issues_quadrant_four", payload)

    assert trace["coverage_state"] == "covered_via_expand"
    assert trace["expanded"] is True
    assert trace["base_items"] == 4
    assert trace["actual_items"] == 6
    assert trace["font_policy"] == "no_font_shrink"


def test_task27_base_count_frame_reports_covered_native():
    payload = _build_verbatim_cards_n_grid(
        _unit_with_groups(4),
        slot_count=4,
        label_pattern="quadrant_{n}_label",
        body_pattern="quadrant_{n}_body",
    )

    trace = _frame_expansion_trace("bim_issues_quadrant_four", payload)

    assert trace["coverage_state"] == "covered_native"
    assert trace["expanded"] is False
    assert trace["actual_items"] == 4