"""Structured logging configuration."""

import logging
import sys
from typing import Optional

from app.config import get_settings


def setup_logging(name: Optional[str] = None, level: Optional[str] = None) -> logging.Logger:
    """Configure and return a logger with consistent formatting."""
    settings = get_settings()
    log_level = level or settings.log_level
    logger_name = name or "pinnacle"

    logger = logging.getLogger(logger_name)
    logger.setLevel(getattr(logging, log_level.upper()))

    # Avoid duplicate handlers
    if not logger.handlers:
        handler = logging.StreamHandler(sys.stdout)
        handler.setLevel(getattr(logging, log_level.upper()))
        formatter = logging.Formatter(settings.log_format)
        handler.setFormatter(formatter)
        logger.addHandler(handler)

    return logger