from sqlalchemy import String, Text, DateTime, func, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.db.base import Base

class Workflow(Base):
    __tablename__ = "workflows"

    id: Mapped[int] = mapped_column(primary_key=True)
    owner_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), index=True, nullable=False)

    name: Mapped[str] = mapped_column(String(200), nullable=False)
    description: Mapped[str | None] = mapped_column(Text, 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)

    owner = relationship("User")