from dashboard_data.card_utils import safe_number


def build_anomaly_detection_card(sensor_id: str, context: dict | None = None, ai_bundle: dict | None = None) -> dict:
    sensor = (context or {}).get("sensor")
    if sensor is None:
        return {"anomalies": []}

    anomalies = []
    moisture = safe_number(sensor.soil_moisture, 0)
    if moisture < 45:
        anomalies.append(
            {
                "sensor": "رطوبت خاک",
                "value": f"{round(moisture)}%",
                "expected": "45-65%",
                "deviation": f"{round(moisture - 55)}%",
                "severity": "warning",
            }
        )

    soil_ph = safe_number(sensor.soil_ph, 7)
    if soil_ph < 6 or soil_ph > 7:
        anomalies.append(
            {
                "sensor": "pH خاک",
                "value": f"{soil_ph:.1f}",
                "expected": "6.0-7.0",
                "deviation": f"{round(soil_ph - 6.5, 1)}",
                "severity": "error" if soil_ph < 5.5 or soil_ph > 7.5 else "warning",
            }
        )

    return {"anomalies": anomalies}