rag_server/applications/utils/task/async_task.py

import json
import os
import uuid

from applications.api import get_basic_embedding
from applications.api.qwen import QwenClient
from applications.async_task import ChunkBooksTask
from applications.config import BASE_MILVUS_SEARCH_PARAMS, DEFAULT_MODEL
from applications.resource import get_resource_manager
from applications.search import HybridSearch
from applications.utils.mysql import Books, ChatResult, ContentChunks
from applications.utils.oss.oss_client import OSSClient
from applications.utils.pdf.book_extract import book_extract
from applications.utils.spider.study import study


async def handle_books():
    try:
        # 获取资源管理器和客户端
        resource = get_resource_manager()
        books_mapper = Books(resource.mysql_client)
        oss_client = OSSClient()

        # 获取待处理的书籍列表
        books = await books_mapper.select_init_books()

        for book in books:
            book_id = book.get("book_id")
            # 获取提取状态
            extract_status = (await books_mapper.select_book_extract_status(book_id))[
                0
            ].get("extract_status")

            if extract_status == 0:
                # 更新提取状态为处理中
                await books_mapper.update_book_extract_status(book_id, 1)
                book_path = os.path.join("/tmp", book_id)

                if not os.path.exists(book_path):
                    oss_path = f"rag/pdfs/{book_id}"
                    try:
                        # 下载书籍文件
                        await oss_client.download_file(oss_path, book_path)
                    except Exception as e:
                        continue  # 如果下载失败，跳过该书籍

                try:
                    # 提取书籍内容
                    res = await book_extract(book_path, book_id)
                    if res:
                        content_list = (
                            res.get("results", {})
                            .get(book_id, {})
                            .get("content_list", [])
                        )
                        if content_list:
                            # 更新提取结果
                            await books_mapper.update_book_extract_result(
                                book_id, content_list
                            )

                except Exception as e:
                    await books_mapper.update_book_extract_status(book_id, 99)
                    continue  # 如果提取过程失败，跳过该书籍

                # 创建文档 ID
                doc_id = f"doc-{uuid.uuid4()}"
                chunk_task = ChunkBooksTask(doc_id=doc_id, resource=resource)

                # 处理分片任务
                body = {"book_id": book_id}
                await chunk_task.deal(body)  # 异步执行分片任务

    except Exception as e:
        # 捕获整体异常
        print(f"处理请求失败，错误: {e}")


async def process_question(question, query_text, rag_chat_agent):
    try:
        dataset_id_strs = "11,12"
        dataset_ids = dataset_id_strs.split(",")
        search_type = "hybrid"

        # 执行查询任务
        query_results = await query_search(
            query_text=question,
            filters={"dataset_id": dataset_ids},
            search_type=search_type,
        )

        resource = get_resource_manager()
        chat_result_mapper = ChatResult(resource.mysql_client)

        # 异步执行 chat 与 deepseek 的对话
        chat_result = await rag_chat_agent.chat_with_deepseek(question, query_results)

        # # 判断是否需要执行 study
        study_task_id = None
        if chat_result["status"] == 0:
            study_task_id = study(question)["task_id"]

        qwen_client = QwenClient()
        llm_search = qwen_client.search_and_chat(user_prompt=question)
        decision = await rag_chat_agent.make_decision(question, chat_result, llm_search)

        # 构建返回的数据
        data = {
            "query": question,
            "result": decision["result"],
            "status": decision["status"],
            "relevance_score": decision["relevance_score"],
            # "used_tools": decision["used_tools"],
        }

        # 插入数据库
        await chat_result_mapper.insert_chat_result(
            question,
            dataset_id_strs,
            json.dumps(query_results, ensure_ascii=False),
            chat_result["summary"],
            chat_result["relevance_score"],
            chat_result["status"],
            llm_search["content"],
            json.dumps(llm_search["search_results"], ensure_ascii=False),
            1,
            decision["result"],
            study_task_id,
        )
        return data
    except Exception as e:
        print(f"Error processing question: {question}. Error: {str(e)}")
        return {"query": question, "error": str(e)}


async def query_search(
    query_text,
    filters=None,
    search_type="",
    anns_field="vector_text",
    search_params=BASE_MILVUS_SEARCH_PARAMS,
    _source=False,
    es_size=10000,
    sort_by=None,
    milvus_size=20,
    limit=10,
):
    if filters is None:
        filters = {}
    query_vector = await get_basic_embedding(text=query_text, model=DEFAULT_MODEL)
    resource = get_resource_manager()
    search_engine = HybridSearch(
        milvus_pool=resource.milvus_client,
        es_pool=resource.es_client,
        graph_pool=resource.graph_client,
    )
    try:
        match search_type:
            case "base":
                response = await search_engine.base_vector_search(
                    query_vec=query_vector,
                    anns_field=anns_field,
                    search_params=search_params,
                    limit=limit,
                )
                return response
            case "hybrid":
                response = await search_engine.hybrid_search(
                    filters=filters,
                    query_vec=query_vector,
                    anns_field=anns_field,
                    search_params=search_params,
                    es_size=es_size,
                    sort_by=sort_by,
                    milvus_size=milvus_size,
                )
            case "strategy":
                return None
            case _:
                return None
    except Exception as e:
        return None
    if response is None:
        return None
    resource = get_resource_manager()
    content_chunk_mapper = ContentChunks(resource.mysql_client)
    res = []
    for result in response["results"]:
        content_chunks = await content_chunk_mapper.select_chunk_content(
            doc_id=result["doc_id"], chunk_id=result["chunk_id"]
        )
        if content_chunks:
            content_chunk = content_chunks[0]
            res.append(
                {
                    "docId": content_chunk["doc_id"],
                    "content": content_chunk["text"],
                    "contentSummary": content_chunk["summary"],
                    "score": result["score"],
                    "datasetId": content_chunk["dataset_id"],
                }
            )
    return res[:limit]