72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
from sqlalchemy import Column, Integer, String, ForeignKey, Text, DateTime, Boolean
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from sqlalchemy.dialects.postgresql import ENUM
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from sqlalchemy.orm import relationship
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from sqlalchemy.sql import func
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import enum
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import json
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from typing import Any, Optional
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from app.database import Base
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class AssetType(str, enum.Enum):
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IMAGE = "image"
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AUDIO = "audio"
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VIDEO = "video"
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DOCUMENT = "document"
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MODEL_3D = "model_3d"
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OTHER = "other"
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class Asset(Base):
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__tablename__ = "assets"
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id = Column(Integer, primary_key=True, index=True)
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name = Column(String(255), nullable=False)
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description = Column(Text, nullable=True)
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asset_type = Column(
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ENUM(AssetType, name="asset_type", create_type=False),
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nullable=False,
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)
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file_path = Column(String(512), nullable=False)
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file_size = Column(Integer, nullable=True)
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mime_type = Column(String(128), nullable=True)
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metadata_json = Column(Text, nullable=True)
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world_id = Column(Integer, ForeignKey("worlds.id"), nullable=True)
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owner_id = Column(Integer, ForeignKey("users.id"), nullable=False)
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is_public = Column(Boolean, default=False, nullable=False)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
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owner = relationship("User", back_populates="assets")
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world = relationship("World", back_populates="assets")
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# ------------------------------------------------------------------
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# Computed properties
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# ------------------------------------------------------------------
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@property
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def has_gltf_metadata(self) -> bool:
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"""Return True when metadata_json contains glTF-specific keys.
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glTF metadata is considered present when the stored JSON contains at
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least one of the keys that *extract_gltf_metadata* produces
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(mesh_count, vertex_count, has_animation, texture_refs,
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bounding_box_min, bounding_box_max).
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"""
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if not self.metadata_json:
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return False
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try:
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data: dict[str, Any] = json.loads(self.metadata_json)
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except (json.JSONDecodeError, TypeError):
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return False
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gltf_keys = {
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"mesh_count",
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"vertex_count",
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"has_animation",
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"texture_refs",
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"bounding_box_min",
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"bounding_box_max",
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}
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return bool(gltf_keys & data.keys())
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