import sys
from pathlib import Path
from typing import List, Optional


def find_config_file(path: Path, names: List[str]) -> Optional[Path]:
    for name in names:
        config_path = path / name
        if config_path.exists():
            return config_path

        for parent in path.parents:
            config_path = parent / name
            if config_path.exists():
                return config_path

    return None


def get_exit_code(issue_count: int, critical_count: int) -> int:
    if critical_count > 0:
        return 4
    elif issue_count > 0:
        return 4
    return 0


def format_severity(severity: str) -> str:
    colors = {
        "critical": "red",
        "warning": "yellow",
        "info": "blue",
    }
    return colors.get(severity, "white")


def print_error(message: str, exit_code: int = 1):
    print(f"Error: {message}", file=sys.stderr)
    sys.exit(exit_code)


def validate_path(path: str) -> Path:
    p = Path(path)
    if not p.exists():
        print_error(f"Path does not exist: {path}", 2)
    if not p.is_dir():
        print_error(f"Path is not a directory: {path}", 2)
    return p