import os

from dotenv import load_dotenv

load_dotenv()


def env_str(name: str, default: str = "") -> str:
    return os.getenv(name, default)


def env_required(name: str) -> str:
    value = os.getenv(name)
    if value is None or not value.strip():
        raise RuntimeError(f"Missing required environment variable: {name}")
    return value


def env_bool(name: str, default: bool = False) -> bool:
    value = os.getenv(name)
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on"}


def env_int(name: str, default: int) -> int:
    value = os.getenv(name)
    if value is None:
        return default
    try:
        return int(value)
    except ValueError:
        return default


def env_float(name: str, default: float) -> float:
    value = os.getenv(name)
    if value is None:
        return default
    try:
        return float(value)
    except ValueError:
        return default