from sqlalchemy import Float, ForeignKey, Integer, String
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import Base, TimestampMixin


class CreditRecord(Base, TimestampMixin):
    __tablename__ = "credit_records"

    id: Mapped[str] = mapped_column(String(32), primary_key=True)
    user_id: Mapped[str] = mapped_column(
        String(32), ForeignKey("users.id", ondelete="CASCADE"), index=True
    )
    type: Mapped[str] = mapped_column(String(16))
    amount: Mapped[float] = mapped_column(Float)
    balance_after: Mapped[float] = mapped_column(Float)
    description: Mapped[str] = mapped_column(String(256))
    related_id: Mapped[str | None] = mapped_column(String(64), nullable=True)