import uuid
from datetime import datetime

from sqlalchemy import String, Float, DateTime, ForeignKey, func, Uuid
from sqlalchemy.orm import Mapped, mapped_column

from app.database import Base, JSONType


class PaymentOrder(Base):
    __tablename__ = "payment_orders"

    id: Mapped[uuid.UUID] = mapped_column(
        Uuid(as_uuid=True),
        primary_key=True,
        default=uuid.uuid4,
    )
    user_id: Mapped[str] = mapped_column(
        String(36),
        ForeignKey("users.id", ondelete="CASCADE"),
        nullable=False,
    )
    plan: Mapped[str] = mapped_column(String(20), nullable=False)
    amount: Mapped[float] = mapped_column(Float, nullable=False)
    currency: Mapped[str] = mapped_column(String(10), default="CNY")
    payment_provider: Mapped[str] = mapped_column(String(20), nullable=False)
    payment_id: Mapped[str | None] = mapped_column(String(255), nullable=True)
    status: Mapped[str] = mapped_column(String(20), default="pending")
    pay_url: Mapped[str | None] = mapped_column(String(1024), nullable=True)
    callback_data: Mapped[dict | None] = mapped_column(JSONType, nullable=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        server_default=func.now(),
        nullable=False,
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        server_default=func.now(),
        onupdate=func.now(),
        nullable=False,
    )
    paid_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)