from pathlib import Path

from app.shared.kernel.exceptions import FileSystemError


def read_text(path: Path) -> str:
    try:
        return path.read_text(encoding="utf-8")
    except OSError as e:
        raise FileSystemError(str(path), str(e)) from e


def write_text(path: Path, content: str) -> None:
    try:
        path.parent.mkdir(parents=True, exist_ok=True)
        path.write_text(content, encoding="utf-8")
    except OSError as e:
        raise FileSystemError(str(path), str(e)) from e


def list_files(directory: Path, extensions: list[str] | None = None) -> list[Path]:
    if not directory.is_dir():
        raise FileSystemError(str(directory), "Not a directory")
    files: list[Path] = []
    for p in sorted(directory.rglob("*")):
        if p.is_file():
            if extensions is None or p.suffix in extensions:
                files.append(p)
    return files


def file_exists(path: Path) -> bool:
    return path.is_file()