from __future__ import annotations

import logging
import os

logger = logging.getLogger("s2s")
_logging_configured = False
if not _logging_configured:
    _handler = logging.StreamHandler()
    _handler.setFormatter(
        logging.Formatter(
            "%(asctime)s %(levelname)-7s [%(name)s] %(message)s",
            datefmt="%Y-%m-%d %H:%M:%S",
        )
    )
    logging.basicConfig(level=logging.DEBUG, handlers=[_handler], force=True)
    _lvl_env = (os.environ.get("LOG_LEVEL") or os.environ.get("S2S_LOG_LEVEL") or "INFO").strip().upper()
    _is_debug = _lvl_env in {"DEBUG", "TRACE", "10"}
    # Keep noisy loggers quiet unless LOG_LEVEL explicitly enables debug.
    logging.getLogger("httpx").setLevel(logging.DEBUG if _is_debug else logging.WARNING)
    logging.getLogger("websockets").setLevel(logging.DEBUG if _is_debug else logging.INFO)
    logging.getLogger("uvicorn").setLevel(logging.DEBUG if _is_debug else logging.INFO)
    logging.getLogger("uvicorn.access").setLevel(logging.DEBUG if _is_debug else logging.INFO)
    logging.getLogger("httpcore").setLevel(logging.DEBUG if _is_debug else logging.WARNING)
    # The MCP SDK logs raw protocol messages and error bodies. Our integration
    # reports safe operation metadata and public errors at its own boundary.
    logging.getLogger("mcp").setLevel(logging.CRITICAL)
    logger.setLevel(logging.DEBUG if _is_debug else logging.DEBUG)  # s2s always uses at least DEBUG in development
    _logging_configured = True
    logger.debug(
        "LOG_LEVEL env=%s — noisy-logger levels: httpx=%s uvicorn=%s websockets=%s",
        _lvl_env,
        logging.getLevelName(logging.getLogger("httpx").level),
        logging.getLevelName(logging.getLogger("uvicorn").level),
        logging.getLevelName(logging.getLogger("websockets").level),
    )