"""
Logging configuration
"""
import logging
import logging.handlers
from app.core.settings import settings


def setup_logging():
    """Configure application logging"""
    import os
    # Ensure logs directory exists
    log_dir = os.path.dirname(settings.LOG_FILE)
    if log_dir and not os.path.exists(log_dir):
        os.makedirs(log_dir)
    
    # Create logger
    logger = logging.getLogger("ai_coinvestigator")
    logger.setLevel(getattr(logging, settings.LOG_LEVEL))
    
    # File handler
    file_handler = logging.handlers.RotatingFileHandler(
        settings.LOG_FILE,
        maxBytes=10485760,  # 10MB
        backupCount=10,
        encoding="utf-8"
    )
    file_handler.setLevel(getattr(logging, settings.LOG_LEVEL))
    
    # Console handler
    console_handler = logging.StreamHandler()
    console_handler.setLevel(logging.INFO)
    
    # Formatter
    formatter = logging.Formatter(
        '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
    )
    file_handler.setFormatter(formatter)
    console_handler.setFormatter(formatter)
    
    # Add handlers
    logger.addHandler(file_handler)
    logger.addHandler(console_handler)
    
    return logger


logger = setup_logging()