from typing import Dict, Any, Optional, List


def detect_misinformation_trends(
    text_sources: List[str],
    language: str = "en",
    model_type: str = "transformer",
    window_days: int = 7
) -> Dict[str, Any]:
    """
    Detect Misinformation Trends (placeholder intent)

    Parameters
    ----------
    text_sources : list[str]
        Paths/APIs for text (social, reports).
    language : str
        Language code (e.g., 'en','fa','ps','ar','fr').
    model_type : str
        e.g., 'transformer', 'logreg'.
    window_days : int
        Rolling window for trend aggregation.
    """
    return {
        "type": "ml_detect_misinformation_trends",
        "model_type": model_type,
        "language": language,
        "sources_count": len(text_sources),
        "window_days": window_days,
        "preview": {"will_infer": True, "expected_outputs": ["trend_series", "keywords", "examples"]},
    }
