blocks-transformer/score_processing.py

import logging

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s [%(levelname)s] %(name)s - %(message)s",
)
logger = logging.getLogger(__name__)


def processing(data: dict) -> dict:
    score_threshold = 1200
    score_threshold2 = 1225

    # ---- Compute hd_score based on hierarchy ----
    try:
        reason_hierarchy = [
            ("hd_score_s1", "S1 Triggered", score_threshold, True),
            ("hd_score_s2", "S2 Triggered", score_threshold, True),
            ("hd_score_g1", "G1 Triggered", score_threshold, True),
            ("hd_score_s3", "S3 Triggered", score_threshold, True),
            ("hd_score_m1", "M1 Triggered", score_threshold, True),
            ("hd_score_iso_m2", "M2 Triggered", score_threshold2, False),
            ("hd_score_g2", "G2 Triggered", score_threshold2, False),
        ]

        winning_score = None
        winning_reason = "Pass"
        winning_threshold = None

        for key, reason, threshold, use_gt in reason_hierarchy:
            score = data.get(key)
            if score is None:
                continue
            passes = (score > threshold) if use_gt else (score >= threshold)
            if passes:
                winning_score = score
                winning_reason = reason
                winning_threshold = threshold
                break

        if winning_score is None:
            winning_score = max([
                data.get("hd_score_s1", 0),
                data.get("hd_score_s2", 0),
                data.get("hd_score_g1", 0),
                data.get("hd_score_s3", 0),
                data.get("hd_score_m1", 0),
                data.get("hd_score_iso_m2", 0),
                data.get("hd_score_g2", 0),
            ])
            winning_reason = "Pass"

        hd_score = winning_score

    except Exception as e:
        logging.error(f"Error calculating hd_score values: {e}")
        return {}

    # ---- recommended_action ----
    try:
        if winning_reason != "Pass":
            recommended_action = "Decline Application"
        else:
            recommended_action = "Pass Application"

        logging.info(f"recommended_action: {recommended_action}")

    except Exception as e:
        logging.error(f"Error assigning recommended_action: {e}")
        return {}

    # ---- description ----
    try:
        if winning_reason != "Pass":
            threshold_used = winning_threshold if winning_threshold is not None else score_threshold
            description = (
                f"HD Fraud Score is above the risk threshold {threshold_used}, "
                f"Recommended action: Decline Application"
            )
        else:
            description = (
                "HD Fraud Score is below the risk threshold, Recommended action: Pass Application"
            )

        logging.info(f"description: {description}")

    except Exception as e:
        logging.error(f"Error creating description: {e}")
        return {}

    # ---- hd_action_reasoncode ----
    hd_action_reasoncode = winning_reason
    logging.info(f"hd_action_reasoncode: {hd_action_reasoncode}")

    # ---- Return only original 4 fields ----
    return {
        "hd_score": hd_score,
        "recommended_action": recommended_action,
        "description": description,
        "hd_action_reasoncode": hd_action_reasoncode,
    }