"""键值设置：Provider 配置等以 JSON 形式存储。"""
from __future__ import annotations

from sqlalchemy import String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.core.db import Base


class Setting(Base):
    """通用键值设置。"""

    __tablename__ = "settings"

    key: Mapped[str] = mapped_column(String(64), primary_key=True)
    value_json: Mapped[str] = mapped_column(Text, nullable=False, default="null")


# 设置键名常量
KEY_OCR_PROVIDER = "ocr_provider"
KEY_VLM_PROVIDER = "vlm_provider"
KEY_RECOGNITION_MODE = "recognition_mode"  # ocr | vision | hybrid
KEY_CATEGORY_HINT = "category_hint"

# 默认识别模式：混合（OCR 文本 + 视觉 AI 联合分析）
DEFAULT_RECOGNITION_MODE = "hybrid"