174 lines
7.7 KiB
Python
174 lines
7.7 KiB
Python
import uuid
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from typing import Dict, Any, Optional
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from sqlalchemy.orm import Session
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from app.core.error_codes import BizCode
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from app.core.exceptions import BusinessException
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from app.core.logging_config import get_business_logger
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from app.models.memory_perceptual_model import PerceptualType, FileStorageType
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from app.repositories.memory_perceptual_repository import MemoryPerceptualRepository
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from app.schemas.memory_perceptual_schema import (
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PerceptualQuerySchema,
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PerceptualTimelineResponse,
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PerceptualMemoryItem,
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AudioModal, Content, VideoModal, TextModal
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)
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business_logger = get_business_logger()
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class MemoryPerceptualService:
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def __init__(self, db: Session):
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self.db = db
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self.repository = MemoryPerceptualRepository(db)
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def get_memory_count(self, end_user_id: uuid.UUID) -> Dict[str, Any]:
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"""Retrieve perceptual memory statistics for a user."""
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business_logger.info(f"Fetching perceptual memory statistics: end_user_id={end_user_id}")
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try:
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total_count = self.repository.get_count_by_user_id(end_user_id=end_user_id)
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vision_count = self.repository.get_count_by_type(end_user_id, PerceptualType.VISION)
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audio_count = self.repository.get_count_by_type(end_user_id, PerceptualType.AUDIO)
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text_count = self.repository.get_count_by_type(end_user_id, PerceptualType.TEXT)
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conversation_count = self.repository.get_count_by_type(end_user_id, PerceptualType.CONVERSATION)
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stats = {
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"total": total_count,
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"by_type": {
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"vision": vision_count,
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"audio": audio_count,
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"text": text_count,
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"conversation": conversation_count
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}
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}
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business_logger.info(f"Memory statistics fetched successfully: total={total_count}")
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return stats
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except Exception as e:
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business_logger.error(f"Failed to fetch memory statistics: {str(e)}")
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raise BusinessException(f"Failed to fetch memory statistics: {str(e)}", BizCode.DB_ERROR)
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def _get_latest_memory_by_type(
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self,
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end_user_id: uuid.UUID,
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perceptual_type: PerceptualType
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) -> Optional[dict[str, Any]]:
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"""Internal helper to retrieve the latest memory by type."""
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business_logger.info(f"Fetching latest {perceptual_type.name.lower()} memory: end_user_id={end_user_id}")
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try:
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memories = self.repository.get_by_type(
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end_user_id=end_user_id,
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perceptual_type=perceptual_type,
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limit=1,
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offset=0
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)
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if not memories:
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business_logger.info(f"No {perceptual_type.name.lower()} memory found: end_user_id={end_user_id}")
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return None
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memory = memories[0]
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meta_data = memory.meta_data or {}
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modalities = meta_data.get("modalities")
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content = meta_data.get("content")
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if not modalities:
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raise BusinessException(f"Modalities not defined, perceptual memory_id={memory.id}", BizCode.DB_ERROR)
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if not content:
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raise BusinessException(f"Content not defined, perceptual memory_id={memory.id}", BizCode.DB_ERROR)
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content = Content(**content)
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match perceptual_type:
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case PerceptualType.VISION:
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modal = VideoModal(**modalities)
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case PerceptualType.AUDIO:
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modal = AudioModal(**modalities)
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case PerceptualType.TEXT:
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modal = TextModal(**modalities)
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case _:
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raise BusinessException("Unsupported perceptual type", BizCode.DB_ERROR)
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detail = modal.model_dump()
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result = {
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"id": str(memory.id),
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"file_name": memory.file_name,
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"file_path": memory.file_path,
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"storage_type": memory.storage_service,
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"summary": memory.summary,
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"keywords": content.keywords,
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"topic": content.topic,
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"domain": content.domain,
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"created_time": int(memory.created_time.timestamp()*1000),
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**detail
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}
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business_logger.info(
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f"Latest {perceptual_type.name.lower()} memory retrieved successfully: file={memory.file_name}")
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return result
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except Exception as e:
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business_logger.error(f"Failed to fetch latest {perceptual_type.name.lower()} memory: {str(e)}")
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raise BusinessException(f"Failed to fetch latest {perceptual_type.name.lower()} memory: {str(e)}",
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BizCode.DB_ERROR)
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def get_latest_visual_memory(self, end_user_id: uuid.UUID) -> Optional[Dict[str, Any]]:
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return self._get_latest_memory_by_type(end_user_id, PerceptualType.VISION)
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def get_latest_audio_memory(self, end_user_id: uuid.UUID) -> Optional[Dict[str, Any]]:
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return self._get_latest_memory_by_type(end_user_id, PerceptualType.AUDIO)
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def get_latest_text_memory(self, end_user_id: uuid.UUID) -> Optional[Dict[str, Any]]:
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return self._get_latest_memory_by_type(end_user_id, PerceptualType.TEXT)
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def get_time_line(self, end_user_id: uuid.UUID, query: PerceptualQuerySchema) -> PerceptualTimelineResponse:
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"""Retrieve a timeline of perceptual memories for a user."""
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business_logger.info(f"Fetching perceptual memory timeline: "
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f"end_user_id={end_user_id}, filter={query.filter}")
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try:
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if query.page < 1:
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raise BusinessException("Page number must be greater than 0", BizCode.INVALID_PARAMETER)
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if query.page_size < 1 or query.page_size > 100:
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raise BusinessException("Page size must be between 1 and 100", BizCode.INVALID_PARAMETER)
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total_count, memories = self.repository.get_timeline(end_user_id, query)
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memory_items = []
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for memory in memories:
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meta_data = memory.meta_data or {}
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content = meta_data.get("content")
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content = Content(**content)
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memory_item = PerceptualMemoryItem(
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id=memory.id,
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perceptual_type=PerceptualType(memory.perceptual_type),
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file_path=memory.file_path,
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file_name=memory.file_name,
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file_ext=memory.file_ext,
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summary=memory.summary,
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topic=content.topic,
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domain=content.domain,
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keywords=content.keywords,
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created_time=int(memory.created_time.timestamp()*1000),
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storage_type=FileStorageType(memory.storage_service),
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)
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memory_items.append(memory_item)
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timeline_response = PerceptualTimelineResponse(
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total=total_count,
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page=query.page,
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page_size=query.page_size,
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total_pages=(total_count + query.page_size - 1) // query.page_size,
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memories=memory_items
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)
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business_logger.info(f"Perceptual memory timeline retrieved successfully: "
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f"total={total_count}, returned={len(memories)}")
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return timeline_response
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except BusinessException:
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raise
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except Exception as e:
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business_logger.error(f"Failed to fetch perceptual memory timeline: {str(e)}")
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raise BusinessException(f"Failed to fetch perceptual memory timeline: {str(e)}", BizCode.DB_ERROR)
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