import subprocess
import tempfile
import unittest
from pathlib import Path


class LocalStateTest(unittest.TestCase):
    """验证 `.craftkit/` 能同时承载共享资料和本地状态。"""

    def run_git(self, root: Path, *args: str) -> subprocess.CompletedProcess[str]:
        """在隔离仓库执行 Git，并保留输出供断言使用。"""

        return subprocess.run(
            ["git", "-C", str(root), *args],
            check=False,
            capture_output=True,
            text=True,
            encoding="utf-8",
        )

    def test_nested_gitignore_separates_shared_and_local_content(self) -> None:
        """共享资料应可提交，本地目录和缓存应由嵌套规则排除。"""

        with tempfile.TemporaryDirectory() as temp:
            root = Path(temp)
            initialized = self.run_git(root, "init")
            self.assertEqual(initialized.returncode, 0, initialized.stderr)

            craftkit = root / ".craftkit"
            craftkit.mkdir()
            (craftkit / ".gitignore").write_text(
                "# Local CraftKit data\n/local/\n/cache/\n",
                encoding="utf-8",
            )
            (craftkit / "README.md").write_text("# 项目资料\n", encoding="utf-8")
            shared = craftkit / "standards" / "coding" / "rules.md"
            shared.parent.mkdir(parents=True)
            shared.write_text("# 编码规范\n", encoding="utf-8")
            local = craftkit / "local" / "handoff" / "current.md"
            local.parent.mkdir(parents=True)
            local.write_text("# 本地交接\n", encoding="utf-8")
            cache = craftkit / "cache" / "result.json"
            cache.parent.mkdir(parents=True)
            cache.write_text("{}\n", encoding="utf-8")

            ignored = self.run_git(
                root,
                "check-ignore",
                "--no-index",
                "-v",
                ".craftkit/local/handoff/current.md",
            )
            self.assertEqual(ignored.returncode, 0, ignored.stderr)
            self.assertIn(".craftkit/.gitignore", ignored.stdout.replace("\\", "/"))

            cache_ignored = self.run_git(
                root,
                "check-ignore",
                "--no-index",
                ".craftkit/cache/result.json",
            )
            self.assertEqual(cache_ignored.returncode, 0, cache_ignored.stderr)

            status = self.run_git(root, "status", "--short", "--untracked-files=all")
            self.assertEqual(status.returncode, 0, status.stderr)
            normalized = status.stdout.replace("\\", "/")
            self.assertIn(".craftkit/.gitignore", normalized)
            self.assertIn(".craftkit/README.md", normalized)
            self.assertIn(".craftkit/standards/coding/rules.md", normalized)
            self.assertNotIn(".craftkit/local", normalized)
            self.assertNotIn(".craftkit/cache", normalized)
            self.assertFalse((root / ".gitignore").exists())


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