from __future__ import annotations

import logging

LOGGER_NAMESPACE = "bedit"

_application_logger = logging.getLogger(LOGGER_NAMESPACE)
_application_logger.propagate = False
_application_logger.addHandler(logging.NullHandler())


def get_logger(name: str) -> logging.Logger:
    """Return a logger routed to the BEdit application log."""
    return logging.getLogger(f"{LOGGER_NAMESPACE}.{name}")


def configure_logging(
    handler: logging.Handler,
    level: int | str = logging.INFO,
) -> None:
    """Replace the application output handler and set its log level."""
    for existing in list(_application_logger.handlers):
        _application_logger.removeHandler(existing)
    _application_logger.addHandler(handler)
    set_log_level(level)


def set_log_level(level: int | str) -> None:
    """Set the minimum severity shown by all BEdit loggers."""
    if isinstance(level, str):
        level = level.upper()
    _application_logger.setLevel(level)