"""
Logging configuration for Serien-Checker
"""

import logging
import sys
from pathlib import Path
from datetime import datetime


def get_executable_dir() -> Path:
    """
    Get the directory where the executable/script is located
    Works for both .py and .exe
    """
    if getattr(sys, 'frozen', False):
        # Running as compiled executable (PyInstaller)
        return Path(sys.executable).parent
    else:
        # Running as script
        return Path(__file__).parent.parent.parent


def setup_logger(name: str = "serien_checker", log_to_file: bool = True, portable: bool = False) -> logging.Logger:
    """
    Setup application logger

    Args:
        name: Logger name
        log_to_file: If True, also log to file
        portable: If True, use portable mode (logs in program directory)

    Returns:
        Configured logger instance
    """
    logger = logging.getLogger(name)
    logger.setLevel(logging.DEBUG)

    # Clear existing handlers
    logger.handlers.clear()

    # Console handler
    console_handler = logging.StreamHandler(sys.stdout)
    console_handler.setLevel(logging.INFO)
    console_format = logging.Formatter(
        '%(asctime)s - %(levelname)s - %(message)s',
        datefmt='%H:%M:%S'
    )
    console_handler.setFormatter(console_format)
    logger.addHandler(console_handler)

    # File handler
    if log_to_file:
        # Check if running as EXE or if portable mode is enabled
        if getattr(sys, 'frozen', False) or portable:
            # Running as EXE or portable mode: logs in program directory (next to EXE)
            log_dir = get_executable_dir() / "logs"
        else:
            # Running as script in development: logs in user's AppData
            log_dir = Path.home() / ".serien_checker" / "logs"

        log_dir.mkdir(parents=True, exist_ok=True)
        log_file = log_dir / f"serien_checker_{datetime.now().strftime('%Y%m%d')}.log"

        file_handler = logging.FileHandler(log_file, encoding='utf-8')
        file_handler.setLevel(logging.DEBUG)
        file_format = logging.Formatter(
            '%(asctime)s - %(name)s - %(levelname)s - %(funcName)s:%(lineno)d - %(message)s',
            datefmt='%Y-%m-%d %H:%M:%S'
        )
        file_handler.setFormatter(file_format)
        logger.addHandler(file_handler)

    return logger