"""Read Git status in the current directory; fail if Git fails before conversion."""
import json
import subprocess
import tempfile
from convert import MAX_BYTES, parse_status


def main():
    try:
        with tempfile.TemporaryFile() as output:
            completed = subprocess.run(["git", "--no-optional-locks", "status", "--porcelain=v2", "-z", "--untracked-files=all"],
                                       stdout=output, stderr=subprocess.DEVNULL, timeout=30, check=False)
            if completed.returncode:
                print(json.dumps({"ok": False, "error": "git_status_failed", "exit_code": completed.returncode}))
                return 1
            output.seek(0)
            result = parse_status(output.read(MAX_BYTES + 1))
    except FileNotFoundError:
        result = {"ok": False, "error": "git_not_installed"}
    except subprocess.TimeoutExpired:
        result = {"ok": False, "error": "git_status_timeout"}
    except ValueError as error:
        result = {"ok": False, "error": str(error)}
    except OSError:
        result = {"ok": False, "error": "local_io_error"}
    print(json.dumps(result, ensure_ascii=True))
    return 0 if result["ok"] else 1


if __name__ == "__main__":
    raise SystemExit(main())