from __future__ import annotations

import random
from pathlib import Path
from typing import Any, Dict

import numpy as np
import torch
import yaml


def set_seed(seed: int) -> None:
    random.seed(seed)
    np.random.seed(seed)
    torch.manual_seed(seed)
    torch.cuda.manual_seed_all(seed)


def load_yaml(path: str | Path) -> Dict[str, Any]:
    with Path(path).open("r", encoding="utf-8") as f:
        return yaml.safe_load(f)


def ensure_dir(path: str | Path) -> Path:
    target = Path(path)
    target.mkdir(parents=True, exist_ok=True)
    return target