import uuid
from datetime import datetime, timezone

from sqlalchemy import DateTime, ForeignKey, String, UniqueConstraint
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base import Base


class BusinessCreationRequest(Base):
    __tablename__ = "business_creation_requests"

    __table_args__ = (
        UniqueConstraint("user_id", "idempotency_key", name="uq_business_creation_request"),
    )

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
    idempotency_key: Mapped[str] = mapped_column(String(128), nullable=False)
    business_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("businesses.id", ondelete="CASCADE"), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), nullable=False)