from sqlalchemy import Column, Integer, String, ForeignKey, Text, DateTime, Enum as SAEnum
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func
import enum

from app.database import Base


class AssetType(str, enum.Enum):
    IMAGE = "image"
    AUDIO = "audio"
    VIDEO = "video"
    DOCUMENT = "document"
    MODEL_3D = "model_3d"
    OTHER = "other"


class Asset(Base):
    __tablename__ = "assets"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String(255), nullable=False)
    description = Column(Text, nullable=True)
    asset_type = Column(SAEnum(AssetType), nullable=False)
    file_path = Column(String(512), nullable=False)
    file_size = Column(Integer, nullable=True)
    mime_type = Column(String(128), nullable=True)
    metadata_json = Column(Text, nullable=True)
    world_id = Column(Integer, ForeignKey("worlds.id"), nullable=True)
    owner_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    is_public = Column(Integer, default=0, nullable=False)
    created_at = Column(DateTime(timezone=True), server_default=func.now())
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())

    owner = relationship("User", back_populates="assets")
    world = relationship("World", back_populates="assets")