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"""
Centralized logging configuration for the Markit application.
"""
import logging
import sys
from pathlib import Path
from typing import Optional

from src.core.config import config


def setup_logging(
    level: Optional[str] = None,
    log_file: Optional[str] = None,
    format_string: Optional[str] = None
) -> None:
    """
    Setup centralized logging configuration.
    
    Args:
        level: Logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
        log_file: Optional file path for logging output
        format_string: Custom format string for log messages
    """
    # Determine logging level
    if level is None:
        level = "DEBUG" if config.app.debug else "INFO"
    
    # Default format string
    if format_string is None:
        format_string = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
    
    # Configure root logger
    root_logger = logging.getLogger()
    root_logger.setLevel(getattr(logging, level.upper()))
    
    # Clear existing handlers
    root_logger.handlers.clear()
    
    # Create formatter
    formatter = logging.Formatter(format_string)
    
    # Console handler
    console_handler = logging.StreamHandler(sys.stdout)
    console_handler.setLevel(getattr(logging, level.upper()))
    console_handler.setFormatter(formatter)
    root_logger.addHandler(console_handler)
    
    # File handler (optional)
    if log_file:
        try:
            log_path = Path(log_file)
            log_path.parent.mkdir(parents=True, exist_ok=True)
            
            file_handler = logging.FileHandler(log_file)
            file_handler.setLevel(getattr(logging, level.upper()))
            file_handler.setFormatter(formatter)
            root_logger.addHandler(file_handler)
        except Exception as e:
            logging.warning(f"Could not setup file logging: {e}")
    
    # Set specific logger levels to reduce noise
    logging.getLogger("urllib3").setLevel(logging.WARNING)
    logging.getLogger("requests").setLevel(logging.WARNING)
    logging.getLogger("gradio").setLevel(logging.WARNING)
    
    if not config.app.debug:
        # Reduce noise from external libraries in non-debug mode
        logging.getLogger("transformers").setLevel(logging.WARNING)
        logging.getLogger("torch").setLevel(logging.WARNING)


def get_logger(name: str) -> logging.Logger:
    """
    Get a logger with the specified name.
    
    Args:
        name: Logger name (typically __name__)
        
    Returns:
        Logger instance
    """
    return logging.getLogger(name)