from importlib.metadata import PackageNotFoundError, version as _pkg_version
from pathlib import Path

from browser_cli.constants import MAX_MSG_BYTES, PROTOCOL_MIN_CLIENT, PYPI_PACKAGE_NAME

def parse_version(v: str) -> tuple[int, ...]:
  try:
    return tuple(int(x) for x in v.lstrip("v").split("."))
  except ValueError:
    return (0,)

def get_installed_version() -> str:
  try:
    return _pkg_version(PYPI_PACKAGE_NAME)
  except Exception:
    return "0.0.0"

def project_version() -> str:
  pyproject_path = Path(__file__).resolve().parent.parent / "pyproject.toml"
  try:
    content = pyproject_path.read_text(encoding="utf-8")
    for line in content.splitlines():
      if line.startswith("version = "):
        return line.split('"')[1]
  except OSError:
    pass

  try:
    return _pkg_version(PYPI_PACKAGE_NAME)
  except PackageNotFoundError:
    return "unknown"

USER_AGENT = f"browser-cli/{get_installed_version()}"