"""Regression tests for CLI JSON error handling."""

from pathlib import Path

from click.testing import CliRunner

from vlm.cli import main


def _write_config(path: Path, library_root: Path) -> None:
    path.parent.mkdir(parents=True, exist_ok=True)
    path.write_text(
        f"""
library_root: {library_root}
video_extensions:
  - .mp4
  - .mkv
templates:
  movie_dir: "movie/{{title}} ({{year}})/"
  series_dir: "series/{{title}}/Season {{season:02d}}/"
  movie_filename: "{{title}} ({{year}}){{ext}}"
  series_filename: "S{{season:02d}}E{{episode:02d}}{{ext}}"
""".strip()
    )


def test_analyze_invalid_json_returns_user_friendly_error(tmp_path):
    config_path = tmp_path / ".vlm" / "config.yaml"
    _write_config(config_path, tmp_path / "library")

    invalid_json = tmp_path / "identities.json"
    invalid_json.write_text("{ this is invalid json")

    result = CliRunner().invoke(
        main,
        [
            "--config",
            str(config_path),
            "analyze",
            "--input",
            str(invalid_json),
            "--output",
            str(tmp_path / "analysis.json"),
        ],
    )

    assert result.exit_code != 0
    assert "Failed to parse JSON file" in result.output
    assert "NameError" not in result.output


def test_plan_invalid_json_returns_user_friendly_error(tmp_path):
    config_path = tmp_path / ".vlm" / "config.yaml"
    _write_config(config_path, tmp_path / "library")

    invalid_json = tmp_path / "identities.json"
    invalid_json.write_text("{ this is invalid json")

    result = CliRunner().invoke(
        main,
        [
            "--config",
            str(config_path),
            "plan",
            "--input",
            str(invalid_json),
            "--output",
            str(tmp_path / "plan.json"),
        ],
    )

    assert result.exit_code != 0
    assert "Failed to parse JSON file" in result.output
    assert "NameError" not in result.output