"""
BUFF 选品请求单-选中饰品明细表模型：每条记录为某次选品请求选中的一件饰品，按 user_id 与 request_id 隔离。
"""
from sqlalchemy import Column, BigInteger, Integer, String, DateTime, UniqueConstraint, Numeric
from app.database import Base
from app.utils.timezone import beijing_now_naive


class BuffSelectionRequestItem(Base):
    """BUFF 选品请求单-选中饰品明细表"""
    __tablename__ = "buff_selection_request_item"
    __table_args__ = (UniqueConstraint("request_id", "goods_id", name="uk_request_goods"),)

    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="主键ID")
    request_id = Column(BigInteger, nullable=False, index=True, comment="选品请求单ID")
    user_id = Column(Integer, nullable=False, index=True, comment="用户ID，与请求单一致，便于按用户隔离")
    goods_id = Column(String(64), nullable=False, index=True, comment="BUFF饰品ID")
    goods_name = Column(String(256), nullable=True, comment="饰品名称")
    icon_url = Column(String(512), nullable=True, comment="饰品图片URL")
    steam_link = Column(String(512), nullable=True, comment="饰品Steam链接")
    price_cny = Column(Numeric(12, 2), nullable=True, comment="价格（人民币）")
    price_usd = Column(Numeric(12, 2), nullable=True, comment="价格（美元）")
    wear_range = Column(String(64), nullable=True, comment="磨损区间，如 0.00-0.02")
    created_at = Column(DateTime, default=beijing_now_naive, comment="创建时间")