from __future__ import annotations

from collections.abc import Iterable
from pathlib import Path
from typing import Any

from decouple import AutoConfig, Config, RepositoryEnv


def build_config(base_dir: Path):
    env_file = base_dir / ".env"
    if env_file.exists():
        return Config(RepositoryEnv(str(env_file)))
    return AutoConfig(search_path=base_dir)


def env_bool(value: Any, default: bool = False) -> bool:
    if value is None:
        return default
    if isinstance(value, bool):
        return value
    if isinstance(value, (int, float)):
        return bool(value)
    s = str(value).strip().lower()
    if s in {"1", "true", "yes", "y", "on"}:
        return True
    if s in {"0", "false", "no", "n", "off"}:
        return False
    return default


def env_int(value: Any, default: int = 0) -> int:
    try:
        return int(str(value).strip())
    except Exception:
        return default


def env_list(value: Any, default: Iterable[str] = ()) -> list[str]:
    """
    Поддерживает:
      - "a,b,c"
      - "a, b, c"
      - пустые значения
    """
    if value is None:
        return list(default)
    if isinstance(value, (list, tuple, set)):
        return [str(x).strip() for x in value if str(x).strip()]
    s = str(value).strip()
    if not s:
        return list(default)
    return [p.strip() for p in s.split(",") if p.strip()]