from sqlalchemy import Column, String, DateTime, func, ForeignKey, Text
from sqlalchemy.dialects.postgresql import UUID, ARRAY
from sqlalchemy.orm import relationship
from app.core.database import Base
import uuid

class TryOnTask(Base):
    __tablename__ = "try_on_tasks"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id = Column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
    garment_item_id = Column(UUID(as_uuid=True), ForeignKey("wardrobe_items.id", ondelete="CASCADE"), nullable=True)
    garment_item_ids = Column(ARRAY(UUID(as_uuid=True)), nullable=True)
    status = Column(String(20), nullable=False, default="PENDING") # PENDING, PROCESSING, SUCCESS, FAILED
    result_url = Column(String(512), nullable=True)
    person_image_url = Column(String(512), nullable=True)
    error_message = Column(Text, nullable=True)
    created_at = Column(DateTime(timezone=True), server_default=func.now())
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())

    # Relationships
    user = relationship("User", back_populates="try_on_tasks")
    garment_item = relationship("WardrobeItem", back_populates="try_on_tasks")