Base code
This commit is contained in:
Kunthawat Greethong
322
backend/services/content_asset_service.py
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322
backend/services/content_asset_service.py
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"""
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Content Asset Service
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Service for managing and tracking all AI-generated content assets.
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"""
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from typing import Dict, Any, List, Optional, Tuple
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from sqlalchemy.orm import Session
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from sqlalchemy import and_, or_, func, desc
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from datetime import datetime
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from models.content_asset_models import (
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ContentAsset,
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AssetCollection,
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AssetType,
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AssetSource
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)
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import logging
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logger = logging.getLogger(__name__)
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class ContentAssetService:
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"""Service for managing content assets across all modules."""
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def __init__(self, db: Session):
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self.db = db
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def create_asset(
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self,
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user_id: str,
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asset_type: AssetType,
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source_module: AssetSource,
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filename: str,
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file_url: str,
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file_path: Optional[str] = None,
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file_size: Optional[int] = None,
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mime_type: Optional[str] = None,
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title: Optional[str] = None,
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description: Optional[str] = None,
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prompt: Optional[str] = None,
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tags: Optional[List[str]] = None,
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asset_metadata: Optional[Dict[str, Any]] = None,
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provider: Optional[str] = None,
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model: Optional[str] = None,
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cost: Optional[float] = None,
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generation_time: Optional[float] = None,
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) -> ContentAsset:
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"""
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Create a new content asset record.
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Args:
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user_id: Clerk user ID
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asset_type: Type of asset (text, image, video, audio)
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source_module: Source module that generated it
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filename: Original filename
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file_url: Public URL to access the asset
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file_path: Server file path (optional)
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file_size: File size in bytes (optional)
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mime_type: MIME type (optional)
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title: Asset title (optional)
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description: Asset description (optional)
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prompt: Generation prompt (optional)
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tags: List of tags (optional)
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asset_metadata: Additional metadata (optional)
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provider: AI provider used (optional)
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model: Model used (optional)
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cost: Generation cost (optional)
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generation_time: Generation time in seconds (optional)
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Returns:
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Created ContentAsset instance
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"""
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try:
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asset = ContentAsset(
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user_id=user_id,
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asset_type=asset_type,
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source_module=source_module,
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filename=filename,
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file_url=file_url,
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file_path=file_path,
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file_size=file_size,
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mime_type=mime_type,
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title=title,
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description=description,
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prompt=prompt,
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tags=tags or [],
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asset_metadata=asset_metadata or {},
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provider=provider,
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model=model,
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cost=cost or 0.0,
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generation_time=generation_time,
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)
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self.db.add(asset)
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self.db.commit()
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self.db.refresh(asset)
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logger.info(f"Created asset {asset.id} for user {user_id} from {source_module.value}")
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return asset
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except Exception as e:
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self.db.rollback()
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logger.error(f"Error creating asset: {str(e)}", exc_info=True)
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raise
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def get_user_assets(
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self,
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user_id: str,
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asset_type: Optional[AssetType] = None,
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source_module: Optional[AssetSource] = None,
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search_query: Optional[str] = None,
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tags: Optional[List[str]] = None,
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favorites_only: bool = False,
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limit: int = 100,
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offset: int = 0,
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) -> Tuple[List[ContentAsset], int]:
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"""
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Get assets for a user with optional filtering.
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Args:
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user_id: Clerk user ID
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asset_type: Filter by asset type (optional)
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source_module: Filter by source module (optional)
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search_query: Search in title, description, prompt (optional)
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tags: Filter by tags (optional)
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favorites_only: Only return favorites (optional)
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limit: Maximum number of results
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offset: Offset for pagination
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Returns:
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List of ContentAsset instances
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"""
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try:
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query = self.db.query(ContentAsset).filter(
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ContentAsset.user_id == user_id
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)
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if asset_type:
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query = query.filter(ContentAsset.asset_type == asset_type)
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if source_module:
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query = query.filter(ContentAsset.source_module == source_module)
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if favorites_only:
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query = query.filter(ContentAsset.is_favorite == True)
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if search_query:
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search_filter = or_(
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ContentAsset.title.ilike(f"%{search_query}%"),
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ContentAsset.description.ilike(f"%{search_query}%"),
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ContentAsset.prompt.ilike(f"%{search_query}%"),
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ContentAsset.filename.ilike(f"%{search_query}%"),
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)
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query = query.filter(search_filter)
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if tags:
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# Filter by tags (JSON array contains any of the tags)
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tag_filters = [ContentAsset.tags.contains([tag]) for tag in tags]
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query = query.filter(or_(*tag_filters))
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# Get total count before pagination
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total_count = query.count()
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# Apply ordering and pagination
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query = query.order_by(desc(ContentAsset.created_at))
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query = query.limit(limit).offset(offset)
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return query.all(), total_count
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except Exception as e:
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logger.error(f"Error fetching assets: {str(e)}", exc_info=True)
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raise
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def get_asset_by_id(self, asset_id: int, user_id: str) -> Optional[ContentAsset]:
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"""Get a specific asset by ID."""
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try:
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return self.db.query(ContentAsset).filter(
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and_(
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ContentAsset.id == asset_id,
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ContentAsset.user_id == user_id
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)
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).first()
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except Exception as e:
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logger.error(f"Error fetching asset {asset_id}: {str(e)}", exc_info=True)
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return None
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def toggle_favorite(self, asset_id: int, user_id: str) -> bool:
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"""Toggle favorite status of an asset."""
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try:
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asset = self.get_asset_by_id(asset_id, user_id)
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if not asset:
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return False
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asset.is_favorite = not asset.is_favorite
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self.db.commit()
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return asset.is_favorite
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except Exception as e:
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self.db.rollback()
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logger.error(f"Error toggling favorite: {str(e)}", exc_info=True)
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return False
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def delete_asset(self, asset_id: int, user_id: str) -> bool:
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"""Delete an asset."""
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try:
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asset = self.get_asset_by_id(asset_id, user_id)
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if not asset:
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return False
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self.db.delete(asset)
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self.db.commit()
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return True
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except Exception as e:
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self.db.rollback()
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logger.error(f"Error deleting asset: {str(e)}", exc_info=True)
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return False
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def update_asset(
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self,
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asset_id: int,
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user_id: str,
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title: Optional[str] = None,
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description: Optional[str] = None,
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tags: Optional[List[str]] = None,
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asset_metadata: Optional[Dict[str, Any]] = None,
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) -> Optional[ContentAsset]:
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"""Update asset metadata."""
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try:
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asset = self.get_asset_by_id(asset_id, user_id)
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if not asset:
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return None
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if title is not None:
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asset.title = title
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if description is not None:
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asset.description = description
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if tags is not None:
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asset.tags = tags
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if asset_metadata is not None:
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asset.asset_metadata = {**(asset.asset_metadata or {}), **asset_metadata}
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asset.updated_at = datetime.utcnow()
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self.db.commit()
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self.db.refresh(asset)
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logger.info(f"Updated asset {asset_id} for user {user_id}")
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return asset
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except Exception as e:
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self.db.rollback()
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logger.error(f"Error updating asset: {str(e)}", exc_info=True)
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return None
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def update_asset_usage(self, asset_id: int, user_id: str, action: str = "access"):
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"""Update asset usage statistics."""
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try:
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asset = self.get_asset_by_id(asset_id, user_id)
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if not asset:
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return
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if action == "download":
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asset.download_count += 1
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elif action == "share":
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asset.share_count += 1
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asset.last_accessed = datetime.utcnow()
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self.db.commit()
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except Exception as e:
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self.db.rollback()
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logger.error(f"Error updating asset usage: {str(e)}", exc_info=True)
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def get_asset_statistics(self, user_id: str) -> Dict[str, Any]:
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"""Get statistics about user's assets."""
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try:
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total = self.db.query(func.count(ContentAsset.id)).filter(
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ContentAsset.user_id == user_id
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).scalar() or 0
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by_type = self.db.query(
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ContentAsset.asset_type,
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func.count(ContentAsset.id)
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).filter(
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ContentAsset.user_id == user_id
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).group_by(ContentAsset.asset_type).all()
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by_source = self.db.query(
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ContentAsset.source_module,
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func.count(ContentAsset.id)
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).filter(
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ContentAsset.user_id == user_id
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).group_by(ContentAsset.source_module).all()
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total_cost = self.db.query(func.sum(ContentAsset.cost)).filter(
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ContentAsset.user_id == user_id
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).scalar() or 0.0
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favorites_count = self.db.query(func.count(ContentAsset.id)).filter(
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and_(
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ContentAsset.user_id == user_id,
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ContentAsset.is_favorite == True
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)
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).scalar() or 0
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return {
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"total": total,
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"by_type": {str(t): c for t, c in by_type},
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"by_source": {str(s): c for s, c in by_source},
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"total_cost": float(total_cost),
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"favorites_count": favorites_count,
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}
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except Exception as e:
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logger.error(f"Error getting asset statistics: {str(e)}", exc_info=True)
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return {
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"total": 0,
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"by_type": {},
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"by_source": {},
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"total_cost": 0.0,
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"favorites_count": 0,
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}
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