#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Local logging for protobuf2openai package to avoid cross-package dependencies.
"""
import logging
import os
from logging.handlers import RotatingFileHandler
from pathlib import Path

_default_log_dir = os.getenv("LOG_DIR") or os.path.join(os.getenv("DATA_DIR", "/data"), "logs")
LOG_DIR = Path(_default_log_dir)

try:
    LOG_DIR.mkdir(parents=True, exist_ok=True)
except Exception as e:
    fallback = Path("/tmp/protobuf2openai_logs")
    try:
        fallback.mkdir(parents=True, exist_ok=True)
        LOG_DIR = fallback
    except Exception:
        LOG_DIR = None

_logger = logging.getLogger("protobuf2openai")
_logger.setLevel(logging.INFO)

for h in _logger.handlers[:]:
    _logger.removeHandler(h)

console_handler = logging.StreamHandler()
console_handler.setLevel(logging.INFO)

fmt = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(funcName)s:%(lineno)d - %(message)s')
console_handler.setFormatter(fmt)
_logger.addHandler(console_handler)

if LOG_DIR is not None:
    try:
        file_handler = RotatingFileHandler(LOG_DIR / "openai_compat.log", maxBytes=5*1024*1024, backupCount=3, encoding="utf-8")
        file_handler.setLevel(logging.INFO)
        file_handler.setFormatter(fmt)
        _logger.addHandler(file_handler)
    except Exception as e:
        _logger.warning(f"Unable to create file logger under {LOG_DIR}: {e}")

logger = _logger