"""CLI tests for the ADR-0024 chain demo subcommand."""

from __future__ import annotations

import json
from pathlib import Path

import pytest

from core import cli


class TestADR0024SuiteAliases:
    """Layer 1: pin the new suite aliases so they don't drift."""

    @pytest.mark.parametrize(
        "suite,must_contain",
        [
            ("refusal", "tests/test_refusal_contract.py"),
            ("margin", "tests/test_margin_admissibility.py"),
            ("rotor", "tests/test_rotor_admissibility.py"),
            ("inner-loop", "tests/test_inner_loop_admissibility.py"),
            ("phase5", "tests/test_phase5_corpus.py"),
            ("phase6", "tests/test_phase6_demo.py"),
        ],
    )
    def test_suite_alias_resolves(
        self, monkeypatch, suite: str, must_contain: str
    ) -> None:
        calls: list[tuple[str, ...]] = []

        def fake_run(*args: str, check: bool = False, cwd=None) -> int:
            calls.append(args)
            return 0

        monkeypatch.setattr(cli, "_run", fake_run)
        rc = cli.main(["test", "--suite", suite, "-q"])
        assert rc == 0
        assert calls, f"no _run invocation for suite {suite!r}"
        assert must_contain in calls[0]

    def test_adr_0024_alias_runs_full_chain(self, monkeypatch) -> None:
        calls: list[tuple[str, ...]] = []
        monkeypatch.setattr(
            cli, "_run", lambda *a, **kw: (calls.append(a) or 0)
        )
        rc = cli.main(["test", "--suite", "adr-0024", "-q"])
        assert rc == 0
        command = calls[0]
        # All six Phase 2-6 contract files must be present.
        for path in (
            "tests/test_refusal_contract.py",
            "tests/test_margin_admissibility.py",
            "tests/test_rotor_admissibility.py",
            "tests/test_phase5_corpus.py",
            "tests/test_phase6_demo.py",
        ):
            assert path in command, f"missing {path} in adr-0024 expansion"

    def test_list_suites_includes_new_aliases(self, capsys) -> None:
        rc = cli.main(["test", "--list-suites"])
        captured = capsys.readouterr()
        assert rc == 0
        out = captured.out.splitlines()
        for alias in (
            "adr-0024",
            "refusal",
            "margin",
            "rotor",
            "inner-loop",
            "phase5",
            "phase6",
        ):
            assert alias in out, f"alias {alias!r} missing from --list-suites"


class TestDemoSubcommand:
    """Layer 2: pin the `core demo` subcommand surface."""

    def test_demo_help_lists_targets(self, capsys) -> None:
        with pytest.raises(SystemExit) as exc:
            cli.main(["demo", "--help"])
        assert exc.value.code == 0
        captured = capsys.readouterr()
        for target in ("phase5", "phase6", "all", "list-results"):
            assert target in captured.out

    def test_demo_phase6_runs_and_writes_report(self, capsys) -> None:
        rc = cli.main(["demo", "phase6"])
        assert rc == 0
        captured = capsys.readouterr()
        # Headline text on stdout.
        assert "ALL THREE CONDITIONS" in captured.out
        assert "PASS" in captured.out
        # Report file present and well-formed.
        report = Path("evals/forward_semantic_control/results/phase6_demo_report.json")
        assert report.exists()
        data = json.loads(report.read_text())
        assert data["metrics"]["all_three_conditions_pass"] is True

    def test_demo_phase6_json_emits_machine_readable(self, capsys) -> None:
        rc = cli.main(["demo", "phase6", "--json"])
        assert rc == 0
        captured = capsys.readouterr()
        # First non-blank chunk of stdout must be a parseable JSON
        # object containing the headline keys.
        payload = json.loads(captured.out.split("\n\n")[0])
        assert "metrics" in payload
        assert "all_three_conditions_pass" in payload["metrics"]

    def test_demo_list_results_indexes_reports(self, capsys) -> None:
        rc = cli.main(["demo", "list-results"])
        assert rc == 0
        captured = capsys.readouterr()
        assert "results directory" in captured.out
        assert "phase6_demo_report.json" in captured.out

    def test_demo_list_results_json_well_formed(self, capsys) -> None:
        rc = cli.main(["demo", "list-results", "--json"])
        assert rc == 0
        captured = capsys.readouterr()
        data = json.loads(captured.out)
        assert "results_dir" in data
        assert isinstance(data["reports"], list)
        names = [e["file"] for e in data["reports"]]
        assert "phase6_demo_report.json" in names

    def test_demo_index_file_refreshed_after_run(self) -> None:
        cli.main(["demo", "phase6"])
        index_path = Path("evals/forward_semantic_control/results/index.json")
        assert index_path.exists()
        data = json.loads(index_path.read_text())
        names = [e["file"] for e in data["reports"]]
        assert "phase6_demo_report.json" in names