import re
import unittest
from pathlib import Path


REPOSITORY_ROOT = Path(__file__).resolve().parents[1]


class ContainerToolsDeploymentTests(unittest.TestCase):
    def test_deployment_compose_uses_prebuilt_image_only(self):
        compose = (REPOSITORY_ROOT / "docker-compose.yml").read_text(encoding="utf-8")

        self.assertIn(
            "image: harbor.mukan.0am.jp/services/email-to-discord:latest",
            compose,
        )
        self.assertIn("host.docker.internal:host-gateway", compose)
        for forbidden_key in ("build", "container_name", "env_file"):
            self.assertIsNone(
                re.search(rf"^\s+{forbidden_key}:", compose, flags=re.MULTILINE),
                f"container_toolsで禁止されている'{forbidden_key}'が含まれています",
            )

    def test_local_compose_keeps_source_build_support(self):
        compose = (REPOSITORY_ROOT / "docker-compose.local.yml").read_text(
            encoding="utf-8"
        )

        self.assertRegex(compose, r"(?m)^\s+build:")
        self.assertIn("target: runtime", compose)
        self.assertIn("host.docker.internal:host-gateway", compose)


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