from pathlib import Path
from unittest.mock import patch

from typer.testing import CliRunner

from plugin_eval.cli import app
from plugin_eval.models import (
    CompositeResult,
    Depth,
    EvalConfig,
    LayerResult,
    PluginEvalResult,
)

runner = CliRunner()


class TestCLI:
    def test_score_quick(self, sample_skill_dir: Path):
        result = runner.invoke(app, ["score", str(sample_skill_dir), "--depth", "quick"])
        assert result.exit_code == 0

    def test_score_json_output(self, sample_skill_dir: Path):
        result = runner.invoke(
            app, ["score", str(sample_skill_dir), "--depth", "quick", "--output", "json"]
        )
        assert result.exit_code == 0
        assert '"composite"' in result.stdout

    def test_score_markdown_output(self, sample_skill_dir: Path):
        result = runner.invoke(
            app, ["score", str(sample_skill_dir), "--depth", "quick", "--output", "markdown"]
        )
        assert result.exit_code == 0
        assert "PluginEval Report" in result.stdout

    def test_score_nonexistent_path(self, tmp_path: Path):
        result = runner.invoke(app, ["score", str(tmp_path / "nonexistent")])
        assert result.exit_code == 2

    def test_plugin_eval_at_deep_depth_emits_downgrade_warning(
        self, sample_plugin_dir: Path
    ) -> None:
        """Plugin-level evaluation only runs the static layer; certify-style
        invocations at deep depth must warn the user that the deeper layers
        were skipped, not silently produce a static-only report.
        """
        result = runner.invoke(
            app,
            ["certify", str(sample_plugin_dir), "--output", "markdown"],
        )
        assert result.exit_code == 0
        # Click 8.3+ exposes stdout/stderr as separate attributes by default.
        assert "warning" in result.stderr.lower()
        assert "plugin-level" in result.stderr.lower()
        assert "deep" in result.stderr.lower()

    def test_plugin_eval_at_quick_depth_does_not_warn(self, sample_plugin_dir: Path) -> None:
        """No warning when the requested depth is already static-only."""
        result = runner.invoke(
            app,
            ["score", str(sample_plugin_dir), "--depth", "quick"],
        )
        assert result.exit_code == 0
        assert "warning" not in result.stderr.lower()


def test_score_warns_when_judge_unmeasured(sample_skill_dir):
    fake = PluginEvalResult(
        plugin_path=str(sample_skill_dir),
        timestamp="t",
        config=EvalConfig(depth=Depth.STANDARD),
        layers=[
            LayerResult(layer="static", score=0.8, sub_scores={}),
            LayerResult(
                layer="judge",
                score=0.0,
                sub_scores={},
                metadata={"unmeasured": ["triggering_accuracy", "output_quality"]},
            ),
        ],
        composite=CompositeResult(score=60.0),
    )
    with patch("plugin_eval.cli.EvalEngine") as Eng:
        Eng.return_value.evaluate_skill.return_value = fake
        result = CliRunner().invoke(app, ["score", str(sample_skill_dir), "--output", "json"])
    assert result.exit_code == 0
    assert "judge" in result.stderr.lower()
    assert "unmeasured" in result.stderr.lower() or "could not" in result.stderr.lower()