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wujingjing

2024-11-07 b006d0fefbcd38f9fe3d95a46519b2e5e6720d5c

 src/components/chat/hooks/useScrollLoad.ts

@@ -1,15 +1,33 @@
import { Ref, ShallowRef, nextTick, onBeforeUnmount, ref } from 'vue';
import moment from 'moment';
import { Ref, ShallowRef, computed, nextTick, onBeforeUnmount, ref, unref } from 'vue';
import { LOAD_CHAT_LIMIT } from '../constants';
import { AnswerType, ChatContent, ChatMessage, RoleEnum } from '../model/types';
import { AnswerType, ChatContent, ChatMessage, RoleEnum, StepEnum, StepItem } from '../model/types';
import { GetHistoryAnswer, QueryHistoryDetail } from '/@/api/ai/chat';

type UseScrollLoadOption = {
   container: ShallowRef<HTMLDivElement>;
   historyGroupId: string;
   historyGroupId: string | Ref<string>;
   messageList: Ref<ChatMessage[]>;
   parseAnswerContent: (res: any) => ChatContent;
};

export const convertProcessItem = (processItem: any) => {
   switch (processItem.mode) {
      case 'begin':
         break;
      case 'end':
         break;
   }
   return {
      status: StepEnum.Success,
      title: processItem.value,
   };
};
export const convertProcessToStep = (process: any[]) => {
   const stepList = (process??[]).map<StepItem>((item) => {
      return convertProcessItem(item);
   });
   return stepList;
};
/**
 * 滚动加载数据
 * @returns
@@ -28,12 +46,17 @@
         history_id: historyId,
      });
   };

   const formatShowTimeYear = computed(() => {
      return (str) => {
         return moment(str).format('MM月DD日 HH:mm:ss');
      };
   });
   /**
    * 获取用户回复数据，并插入到对话当中去
    */
   const loadReplyData = async (userMsg: any[]) => {
      const sectionAIdMap = new Map();
      const userItemIdMap = new Map();
      // 用户消息
      const tmpMessageList: ChatMessage[] = userMsg.map((item) => {
         return {
            historyId: item.history_id,
@@ -46,7 +69,7 @@
      });
      const resList = await Promise.all(
         (userMsg ?? []).map((item) => {
            sectionAIdMap.set(item.history_id, item.section_a_id);
            userItemIdMap.set(item.history_id, item);
            return getAnswerById(item.history_id);
         })
      );
@@ -55,6 +78,10 @@
         const insertIndex = index + 1 + i;
         const currentUserMsg = tmpMessageList[insertIndex - 1];
         currentUserMsg.content.values = item?.answer?.question ?? currentUserMsg.content.values;
		
         const mapUser = userItemIdMap.get(item.answer?.history_id);

         const answerTime = formatShowTimeYear.value(mapUser?.create_time);
         tmpMessageList.splice(
            insertIndex,
            0,
@@ -65,7 +92,11 @@
                     role: RoleEnum.assistant,
                     content: parseAnswerContent(item.answer),
                     state: item.answer_state,
                     sectionAId: sectionAIdMap.get(item.answer.history_id),
                     sectionAId: mapUser?.section_a_id,
                     createTime: answerTime,
                     stepList: convertProcessToStep(item?.answer?.exec_process),
                     stepIsShow:false,
                     conclusion:item?.answer?.conclusion ??[],
                 }
         );
         i++;
@@ -79,7 +110,7 @@
    */
   const loadRangeData = async (lastEnd = nextUserMsgEndIndex.value) => {
      const res = await QueryHistoryDetail({
         history_group_id: historyGroupId,
         history_group_id: unref(historyGroupId),
         last_end: lastEnd,
         last_count: LOAD_CHAT_LIMIT,
      });
@@ -97,8 +128,6 @@
   //滚动监听
   async function onChatListScroll() {
      if (container.value.scrollTop == 0) {
         console.log('滚动到顶部了');

         // 更多数据正在加载时
         if (moreIsLoading.value) {
            return;
@@ -114,9 +143,9 @@
            moreIsLoading.value = false;
         });
         //更新后，等待页面渲染完毕再去拿scrollHeight,否则拿到的是之前的
         nextTick(()=>{
            nextTick(()=>{
               nextTick(()=>{
         nextTick(() => {
            nextTick(() => {
               nextTick(() => {
                  let h2 = container.value.scrollHeight;
                  container.value.scrollTo({
                     //顶部在原先基础上往下滚动50px，露出新加载数据的一点
@@ -124,10 +153,9 @@
                     top: h2 - h1,
                     behavior: 'instant', //auto-自动滚动 instant-瞬间滚动 smooth-平滑滚动
                  });
               })
            })
         })

               });
            });
         });
      }
   }