veto.py

from typing import Dict, Any, Tuple
from config import (
    VETO_VOLUME_MIN_SCORE,
    VETO_VOLATILITY_MAX,
    VETO_STRUCTURE_MIN_SCORE,
)


def apply_veto(
    regime_data: Dict[str, Any],
    volume_data: Dict[str, Any],
    structure_score: float,
) -> Tuple[bool, str]:
    reasons = []

    volume_score = volume_data.get("volume_score", 0.0)
    if volume_score < VETO_VOLUME_MIN_SCORE:
        reasons.append(f"volume_weak (score={volume_score:.2f})")

    vol_ratio = regime_data.get("vol_ratio", 1.0)
    if vol_ratio > VETO_VOLATILITY_MAX:
        reasons.append(f"volatility_extreme (ratio={vol_ratio:.2f})")

    if structure_score < VETO_STRUCTURE_MIN_SCORE:
        reasons.append(f"structure_conflicting (score={structure_score:.2f})")

    climax = volume_data.get("climax", False)
    if climax:
        reasons.append("climax_volume_detected")

    if reasons:
        return True, "; ".join(reasons)
    return False, ""