import logging
import os


def configure_logging():
    """Configure structured JSON logging for the application."""
    log_level = logging.DEBUG if os.getenv("APP_ENV", "development") == "development" else logging.INFO

    try:
        from pythonjsonlogger import jsonlogger

        handler = logging.StreamHandler()
        formatter = jsonlogger.JsonFormatter(
            fmt="%(asctime)s %(levelname)s %(name)s %(message)s",
            datefmt="%Y-%m-%dT%H:%M:%S",
            rename_fields={"asctime": "timestamp", "levelname": "level", "name": "logger"},
        )
        handler.setFormatter(formatter)
    except ImportError:
        # Fallback to plain text if pythonjsonlogger not installed yet
        handler = logging.StreamHandler()
        handler.setFormatter(
            logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
        )

    root_logger = logging.getLogger()
    root_logger.handlers.clear()
    root_logger.addHandler(handler)
    root_logger.setLevel(log_level)

    # Silence noisy third-party loggers
    logging.getLogger("uvicorn.access").setLevel(logging.WARNING)
    logging.getLogger("httpx").setLevel(logging.WARNING)
    logging.getLogger("httpcore").setLevel(logging.WARNING)
    logging.getLogger("hpack").setLevel(logging.WARNING)