from sqlalchemy import Column, String, DateTime, func, ForeignKey, Enum
from sqlalchemy.dialects.postgresql import UUID, JSONB
import uuid
from sqlalchemy.orm import relationship
import enum

from app.db.session import Base

class AssetType(str, enum.Enum):
    Character = "Character"
    Location = "Location"
    Object = "Object"
    Style = "Style"

class Ingredient(Base):
    __tablename__ = "ingredients"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    project_id = Column(UUID(as_uuid=True), ForeignKey("projects.id", ondelete="CASCADE"), nullable=False)
    name = Column(String, nullable=False)
    type = Column(Enum(AssetType, name="asset_type"), nullable=False)
    s3_key = Column(String, nullable=False)
    s3_bucket = Column(String, default="auteur-assets")
    thumbnail_key = Column(String, nullable=True)
    metadata_ = Column("metadata", JSONB, default={}) # 'metadata' is reserved in SQLAlchemy Base
    created_at = Column(DateTime, default=func.now())

    project = relationship("Project", back_populates="ingredients")