from dataclasses import dataclass
from enum import Enum


class Action(Enum):
    EXECUTE = "execute"
    CONFIRM = "confirm"
    ESCALATE = "escalate"


@dataclass(frozen=True)
class Policy:
    """Thresholds are business decisions, not model outputs."""
    execute_at: float
    confirm_at: float

    def decide(self, confidence: float) -> Action:
        if confidence >= self.execute_at:
            return Action.EXECUTE
        if confidence >= self.confirm_at:
            return Action.CONFIRM
        return Action.ESCALATE


# Cheap-to-reverse actions get permissive policies; expensive ones get strict ones.
POLICIES = {
    "tag_ticket":     Policy(execute_at=0.70, confirm_at=0.40),
    "route_to_team":  Policy(execute_at=0.85, confirm_at=0.60),
    "issue_refund":   Policy(execute_at=0.97, confirm_at=0.90),
}

action = POLICIES["route_to_team"].decide(response.answers["category"].confidence)