"""공통 유틸리티 — v1 pkm_utils.py에서 AppleScript 제거, 나머지 포팅"""

import hashlib
import logging
from pathlib import Path


def setup_logger(name: str, log_dir: str = "logs") -> logging.Logger:
    """로거 설정"""
    Path(log_dir).mkdir(exist_ok=True)
    logger = logging.getLogger(name)
    logger.setLevel(logging.INFO)

    if not logger.handlers:
        # 파일 핸들러
        fh = logging.FileHandler(f"{log_dir}/{name}.log", encoding="utf-8")
        fh.setFormatter(logging.Formatter(
            "%(asctime)s [%(levelname)s] %(message)s",
            datefmt="%Y-%m-%d %H:%M:%S"
        ))
        logger.addHandler(fh)

        # 콘솔 핸들러
        ch = logging.StreamHandler()
        ch.setFormatter(logging.Formatter("[%(levelname)s] %(message)s"))
        logger.addHandler(ch)

    return logger


def file_hash(path: str | Path) -> str:
    """파일 SHA-256 해시 계산"""
    sha256 = hashlib.sha256()
    with open(path, "rb") as f:
        for chunk in iter(lambda: f.read(8192), b""):
            sha256.update(chunk)
    return sha256.hexdigest()


def count_log_errors(log_path: str) -> int:
    """로그 파일에서 ERROR 건수 카운트"""
    try:
        with open(log_path, encoding="utf-8") as f:
            return sum(1 for line in f if "[ERROR]" in line)
    except FileNotFoundError:
        return 0