"""
Configuration structlog — logging structuré JSON/Console.

En production (DEBUG=False) : JSON pour les agrégateurs (ELK, Datadog, etc.)
En développement (DEBUG=True) : Console colorée lisible.
"""
import logging
import sys

import structlog


def configure_logging(debug: bool = False) -> None:
    """Configure structlog + stdlib logging."""
    shared_processors = [
        structlog.contextvars.merge_contextvars,
        structlog.stdlib.add_log_level,
        structlog.stdlib.add_logger_name,
        structlog.stdlib.ExtraAdder(),
        structlog.processors.TimeStamper(fmt="iso"),
        structlog.processors.StackInfoRenderer(),
        structlog.processors.UnicodeDecoder(),
    ]

    if debug:
        # Console lisible en dev
        renderer = structlog.dev.ConsoleRenderer(colors=True)
    else:
        # JSON en production
        renderer = structlog.processors.JSONRenderer()

    structlog.configure(
        processors=[
            *shared_processors,
            structlog.stdlib.ProcessorFormatter.wrap_for_formatter,
        ],
        logger_factory=structlog.stdlib.LoggerFactory(),
        wrapper_class=structlog.stdlib.BoundLogger,
        cache_logger_on_first_use=True,
    )

    formatter = structlog.stdlib.ProcessorFormatter(
        processor=renderer,
        foreign_pre_chain=shared_processors,
    )

    handler = logging.StreamHandler(sys.stdout)
    handler.setFormatter(formatter)

    root_logger = logging.getLogger()
    root_logger.handlers.clear()
    root_logger.addHandler(handler)
    root_logger.setLevel(logging.DEBUG if debug else logging.INFO)

    # Réduire le bruit des librairies tierces
    logging.getLogger("uvicorn.access").setLevel(logging.WARNING)
    logging.getLogger("sqlalchemy.engine").setLevel(logging.WARNING)
    logging.getLogger("httpx").setLevel(logging.WARNING)
    logging.getLogger("httpcore").setLevel(logging.WARNING)