"""
sn_basis/functions/message_wrapper.py – zentrale MessageBar-Abstraktion
"""

from typing import Any

from sn_basis.functions.qgisui_wrapper import iface
from sn_basis.functions.qgiscore_wrapper import Qgis


# ---------------------------------------------------------
# Interne Hilfsfunktion
# ---------------------------------------------------------

def _get_message_bar():
    """
    Liefert eine MessageBar-Instanz (QGIS oder Mock).
    """
    try:
        bar = iface.messageBar()
        if bar is not None:
            return bar
    except Exception:
        pass

    class _MockMessageBar:
        def pushMessage(self, title, text, level=0, duration=5):
            return {
                "title": title,
                "text": text,
                "level": level,
                "duration": duration,
            }

    return _MockMessageBar()


# ---------------------------------------------------------
# Öffentliche API
# ---------------------------------------------------------

def push_message(
    level: int,
    title: str,
    text: str,
    duration: int = 5,
    parent: Any = None,
):
    """
    Zeigt eine Message in der QGIS-MessageBar an.

    Im Mock-Modus wird ein strukturierter Dict zurückgegeben.
    """
    bar = _get_message_bar()

    try:
        return bar.pushMessage(
            title,
            text,
            level=level,
            duration=duration,
        )
    except Exception:
        return None


def info(title: str, text: str, duration: int = 5):
    level = Qgis.MessageLevel.Info
    return push_message(level, title, text, duration)


def warning(title: str, text: str, duration: int = 5):
    level = Qgis.MessageLevel.Warning
    return push_message(level, title, text, duration)


def error(title: str, text: str, duration: int = 5):
    level = Qgis.MessageLevel.Critical
    return push_message(level, title, text, duration)


def success(title: str, text: str, duration: int = 5):
    level = Qgis.MessageLevel.Success
    return push_message(level, title, text, duration)