from pydantic import BaseModel, Field
from typing import Literal

Sentiment = Literal["positive", "neutral", "negative"]
Urgency   = Literal["low", "medium", "high"]
Category  = Literal["billing", "technical", "account", "feature_request", "other"]


class TriageRequest(BaseModel):
    text: str = Field(..., min_length=1, max_length=4000)


class TriageResponse(BaseModel):
    sentiment: Sentiment
    urgency: Urgency
    category: Category
    confidence: float = Field(..., ge=0.0, le=1.0)