import subprocess
import sys
import tempfile
import unittest
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]
SCRIPT = ROOT / "scripts" / "playbook.py"


def run_cli(*args):
    return subprocess.run(
        [sys.executable, str(SCRIPT), *args],
        capture_output=True,
        text=True,
    )


class PlaybookCliTests(unittest.TestCase):
    def test_help_shows_usage(self):
        result = run_cli("-h")
        self.assertEqual(result.returncode, 0)
        self.assertIn("Usage:", result.stdout + result.stderr)

    def test_missing_config_is_error(self):
        result = run_cli()
        self.assertNotEqual(result.returncode, 0)
        self.assertIn("-config", result.stdout + result.stderr)

    def test_action_order(self):
        config_body = """
[playbook]
project_root = "."

[format_md]

[sync_standards]
langs = ["tsl"]
"""
        with tempfile.TemporaryDirectory() as tmp_dir:
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")
            result = run_cli("-config", str(config_path))

        self.assertEqual(result.returncode, 0)
        output = result.stdout + result.stderr
        self.assertIn("sync_standards", output)
        self.assertIn("format_md", output)

    def test_vendor_creates_snapshot(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"

[vendor]
langs = ["tsl"]
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))

            snapshot = Path(tmp_dir) / "docs/standards/playbook/SOURCE.md"
            self.assertEqual(result.returncode, 0)
            self.assertTrue(snapshot.is_file())

if __name__ == "__main__":
    unittest.main()