"""Structlog JSON configuration — import once at process start."""
import logging
import structlog


def configure() -> None:
    structlog.configure(
        processors=[
            structlog.contextvars.merge_contextvars,
            structlog.stdlib.add_log_level,
            structlog.stdlib.add_logger_name,
            structlog.processors.TimeStamper(fmt="iso"),
            structlog.processors.StackInfoRenderer(),
            structlog.processors.JSONRenderer(),
        ],
        wrapper_class=structlog.make_filtering_bound_logger(logging.INFO),
        context_class=dict,
        logger_factory=structlog.PrintLoggerFactory(),
    )
    logging.basicConfig(level=logging.WARNING)