"""Logging configuration for RAVERSE MCP Server"""

import logging
import sys
from typing import Optional
import structlog


def setup_logging(log_level: str = "INFO", log_file: Optional[str] = None) -> None:
    """Configure structured logging"""
    
    # Configure structlog
    structlog.configure(
        processors=[
            structlog.stdlib.filter_by_level,
            structlog.stdlib.add_logger_name,
            structlog.stdlib.add_log_level,
            structlog.stdlib.PositionalArgumentsFormatter(),
            structlog.processors.TimeStamper(fmt="iso"),
            structlog.processors.StackInfoRenderer(),
            structlog.processors.format_exc_info,
            structlog.processors.UnicodeDecoder(),
            structlog.processors.JSONRenderer(),
        ],
        context_class=dict,
        logger_factory=structlog.stdlib.LoggerFactory(),
        cache_logger_on_first_use=True,
    )
    
    # Configure standard logging
    level = getattr(logging, log_level.upper(), logging.INFO)
    
    handlers = [
        logging.StreamHandler(sys.stderr),
    ]
    
    if log_file:
        handlers.append(logging.FileHandler(log_file))
    
    logging.basicConfig(
        level=level,
        format="%(message)s",
        handlers=handlers,
    )


def get_logger(name: str) -> structlog.BoundLogger:
    """Get a structured logger instance"""
    return structlog.get_logger(name)