from __future__ import annotations

import os
import subprocess
import tempfile
import unittest
from pathlib import Path

from vpn_egressctl.renderer_1_13_19 import render_bytes
from vpn_egressctl.uri import parse_hysteria2_uri
from vpn_egressctl.version import probe_version

from tests.helpers import make_policy


class RealSingBoxIntegrationTests(unittest.TestCase):
    @unittest.skipUnless(os.environ.get("SING_BOX_1_13_19"), "real sing-box 1.13.19 binary is not configured")
    def test_real_binary_accepts_golden_config(self) -> None:
        binary = os.environ["SING_BOX_1_13_19"]
        version = probe_version(binary)
        self.assertEqual(version.version, "1.13.19")
        self.assertIn("with_quic", version.tags)
        with tempfile.TemporaryDirectory() as directory:
            root = Path(directory)
            policy = make_policy(root)
            endpoint = parse_hysteria2_uri(
                "hysteria2://auth@example.com:443?obfs=salamander&obfs-password=obfs"
            )
            config = root / "config.json"
            config.write_bytes(render_bytes(policy, endpoint))
            command = "check" if "linux/" in version.environment else "format"
            result = subprocess.run([binary, command, "-c", str(config)], capture_output=True, text=True)
        self.assertEqual(result.returncode, 0, result.stderr)


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