import importlib.util
import pathlib

_PATH = pathlib.Path(__file__).resolve().parent.parent / "scripts" / "repo-scan.py"
_spec = importlib.util.spec_from_file_location("repo_scan", _PATH)
rs = importlib.util.module_from_spec(_spec)
_spec.loader.exec_module(rs)

GOOD = [
    "# ADR-099 — Example\n", "\n",
    "## Status\n", "\n", "Accepted (2026-06-10)\n", "\n",
    "## Context\n", "\n", "Why.\n", "\n",
    "## Decision\n", "\n", "What.\n", "\n",
    "## Consequences\n", "\n", "So what.\n",
]


def _checks(findings):
    return [f for f in findings if f["check"] == "adr-structure"]


def test_good_adr_has_no_findings():
    out = rs.adr_structure_findings({"docs/decisions/099-example.md": GOOD})
    assert _checks(out) == []


def test_missing_mandatory_section_is_flagged():
    lines = [ln for ln in GOOD if not ln.startswith("## Consequences")]
    out = _checks(rs.adr_structure_findings({"docs/decisions/099-example.md": lines}))
    assert len(out) == 1
    assert "Consequences" in out[0]["detail"]


def test_unparseable_status_is_flagged():
    lines = [("Designed, not built.\n" if ln == "Accepted (2026-06-10)\n" else ln)
             for ln in GOOD]
    out = _checks(rs.adr_structure_findings({"docs/decisions/099-example.md": lines}))
    assert len(out) == 1
    assert "Status not parseable" in out[0]["detail"]


def test_superseded_status_is_accepted():
    lines = [("Superseded by ADR-100 (2026-06-11)\n" if ln == "Accepted (2026-06-10)\n"
              else ln) for ln in GOOD]
    out = _checks(rs.adr_structure_findings({"docs/decisions/099-example.md": lines}))
    assert out == []


def test_non_numbered_file_is_skipped():
    bare = ["# ADR template\n", "\n", "## Status\n", "\n", "<!-- hint -->\n"]
    out = _checks(rs.adr_structure_findings({"docs/decisions/adr-template.md": bare}))
    assert out == []