from typing import Literal

from pydantic import BaseModel, ConfigDict, Field


class FeedbackRequest(BaseModel):
    model_config = ConfigDict(extra="forbid")
    rating: Literal[-1, 1]
    # `ConversationFeedback.feedback_type` 是 `String(32)`：不设上限时超长取值
    # 会穿过接口校验、在落库时才出现 500，必须在这里拦成 422。
    feedback_type: str | None = Field(default=None, max_length=32)
    feedback_content: str | None = Field(default=None, max_length=1000)


class HandoverRequest(BaseModel):
    model_config = ConfigDict(extra="forbid")
    reason_code: Literal["user_requested"] = "user_requested"
    reason_detail: str | None = Field(default=None, max_length=500)