<template>
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<el-container v-if="showKeFuMessageList" class="kefu">
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<el-header>
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<div class="kefu-title">{{ conversation.userNickname }}</div>
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</el-header>
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<el-main class="kefu-content overflow-visible">
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<el-scrollbar ref="scrollbarRef" always height="calc(100vh - 495px)" @scroll="handleScroll">
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<div v-if="refreshContent" ref="innerRef" class="w-[100%] pb-3px">
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<!-- 消息列表 -->
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<div v-for="(item, index) in getMessageList0" :key="item.id" class="w-[100%]">
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<div class="flex justify-center items-center mb-20px">
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<!-- 日期 -->
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<div
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v-if="
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item.contentType !== KeFuMessageContentTypeEnum.SYSTEM && showTime(item, index)
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"
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class="date-message"
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>
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{{ formatDate(item.createTime) }}
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</div>
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<!-- 系统消息 -->
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<div
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v-if="item.contentType === KeFuMessageContentTypeEnum.SYSTEM"
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class="system-message"
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>
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{{ item.content }}
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</div>
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</div>
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<div
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:class="[
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item.senderType === UserTypeEnum.MEMBER
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? `ss-row-left`
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: item.senderType === UserTypeEnum.ADMIN
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? `ss-row-right`
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: ''
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]"
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class="flex mb-20px w-[100%]"
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>
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<el-avatar
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v-if="item.senderType === UserTypeEnum.MEMBER"
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:src="conversation.userAvatar"
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alt="avatar"
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class="w-60px h-60px"
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/>
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<div
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:class="{ 'kefu-message': KeFuMessageContentTypeEnum.TEXT === item.contentType }"
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class="p-10px"
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>
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<!-- 文本消息 -->
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<MessageItem :message="item">
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<template v-if="KeFuMessageContentTypeEnum.TEXT === item.contentType">
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<div
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v-dompurify-html="replaceEmoji(item.content)"
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class="flex items-center"
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></div>
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</template>
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</MessageItem>
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<!-- 图片消息 -->
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<MessageItem :message="item">
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<el-image
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v-if="KeFuMessageContentTypeEnum.IMAGE === item.contentType"
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:initial-index="0"
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:preview-src-list="[item.content]"
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:src="item.content"
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class="w-200px"
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fit="contain"
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preview-teleported
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/>
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</MessageItem>
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<!-- 商品消息 -->
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<MessageItem :message="item">
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<ProductItem
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v-if="KeFuMessageContentTypeEnum.PRODUCT === item.contentType"
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:picUrl="getMessageContent(item).picUrl"
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:price="getMessageContent(item).price"
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:skuText="getMessageContent(item).introduction"
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:title="getMessageContent(item).spuName"
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:titleWidth="400"
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class="max-w-70%"
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priceColor="#FF3000"
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/>
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</MessageItem>
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<!-- 订单消息 -->
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<MessageItem :message="item">
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<OrderItem
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v-if="KeFuMessageContentTypeEnum.ORDER === item.contentType"
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:message="item"
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class="max-w-70%"
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/>
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</MessageItem>
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</div>
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<el-avatar
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v-if="item.senderType === UserTypeEnum.ADMIN"
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:src="item.senderAvatar"
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alt="avatar"
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/>
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</div>
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</div>
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</div>
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</el-scrollbar>
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<div
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v-show="showNewMessageTip"
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class="newMessageTip flex items-center cursor-pointer"
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@click="handleToNewMessage"
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>
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<span>有新消息</span>
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<Icon class="ml-5px" icon="ep:bottom" />
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</div>
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</el-main>
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<el-footer height="230px">
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<div class="h-[100%]">
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<div class="chat-tools flex items-center">
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<EmojiSelectPopover @select-emoji="handleEmojiSelect" />
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<PictureSelectUpload
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class="ml-15px mt-3px cursor-pointer"
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@send-picture="handleSendPicture"
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/>
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</div>
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<el-input v-model="message" :rows="6" style="border-style: none" type="textarea" />
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<div class="h-45px flex justify-end">
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<el-button class="mt-10px" type="primary" @click="handleSendMessage">发送</el-button>
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</div>
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</div>
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</el-footer>
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</el-container>
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<el-empty v-else description="请选择左侧的一个会话后开始" />
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</template>
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<script lang="ts" setup>
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import { ElScrollbar as ElScrollbarType } from 'element-plus'
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import { KeFuMessageApi, KeFuMessageRespVO } from '@/api/mall/promotion/kefu/message'
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import { KeFuConversationRespVO } from '@/api/mall/promotion/kefu/conversation'
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import EmojiSelectPopover from './tools/EmojiSelectPopover.vue'
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import PictureSelectUpload from './tools/PictureSelectUpload.vue'
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import ProductItem from './message/ProductItem.vue'
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import OrderItem from './message/OrderItem.vue'
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import { Emoji, useEmoji } from './tools/emoji'
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import { KeFuMessageContentTypeEnum } from './tools/constants'
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import { isEmpty } from '@/utils/is'
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import { UserTypeEnum } from '@/utils/constants'
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import { formatDate } from '@/utils/formatTime'
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import dayjs from 'dayjs'
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import relativeTime from 'dayjs/plugin/relativeTime'
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import { debounce } from 'lodash-es'
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import { jsonParse } from '@/utils'
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dayjs.extend(relativeTime)
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defineOptions({ name: 'KeFuMessageList' })
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const message = ref('') // 消息弹窗
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const { replaceEmoji } = useEmoji()
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const messageTool = useMessage()
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const messageList = ref<KeFuMessageRespVO[]>([]) // 消息列表
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const conversation = ref<KeFuConversationRespVO>({} as KeFuConversationRespVO) // 用户会话
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const showNewMessageTip = ref(false) // 显示有新消息提示
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const queryParams = reactive({
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pageNo: 1,
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pageSize: 10,
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conversationId: 0
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})
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const total = ref(0) // 消息总条数
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const refreshContent = ref(false) // 内容刷新,主要解决会话消息页面高度不一致导致的滚动功能精度失效
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/** 获悉消息内容 */
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const getMessageContent = computed(() => (item: any) => jsonParse(item.content))
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/** 获得消息列表 */
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const getMessageList = async () => {
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const res = await KeFuMessageApi.getKeFuMessagePage(queryParams)
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total.value = res.total
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// 情况一：加载最新消息
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if (queryParams.pageNo === 1) {
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messageList.value = res.list
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} else {
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// 情况二：加载历史消息
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for (const item of res.list) {
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pushMessage(item)
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}
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}
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refreshContent.value = true
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}
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/** 添加消息 */
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const pushMessage = (message: any) => {
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if (messageList.value.some((val) => val.id === message.id)) {
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return
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}
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messageList.value.push(message)
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}
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/** 按照时间倒序，获取消息列表 */
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const getMessageList0 = computed(() => {
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messageList.value.sort((a: any, b: any) => a.createTime - b.createTime)
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return messageList.value
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})
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/** 刷新消息列表 */
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const refreshMessageList = async (message?: any) => {
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if (!conversation.value) {
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return
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}
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if (typeof message !== 'undefined') {
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// 当前查询会话与消息所属会话不一致则不做处理
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if (message.conversationId !== conversation.value.id) {
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return
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}
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pushMessage(message)
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} else {
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// TODO @puhui999：不基于 page 做。而是流式分页；通过 createTime 排序查询；
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queryParams.pageNo = 1
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await getMessageList()
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}
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if (loadHistory.value) {
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// 右下角显示有新消息提示
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showNewMessageTip.value = true
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} else {
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// 滚动到最新消息处
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await handleToNewMessage()
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}
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}
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/** 获得新会话的消息列表 */
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// TODO @puhui999：可优化：可以考虑本地做每个会话的消息 list 缓存；然后点击切换时，读取缓存；然后异步获取新消息，merge 下；
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const getNewMessageList = async (val: KeFuConversationRespVO) => {
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// 会话切换,重置相关参数
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queryParams.pageNo = 1
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messageList.value = []
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total.value = 0
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loadHistory.value = false
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refreshContent.value = false
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// 设置会话相关属性
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conversation.value = val
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queryParams.conversationId = val.id
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// 获取消息
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await refreshMessageList()
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}
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defineExpose({ getNewMessageList, refreshMessageList })
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const showKeFuMessageList = computed(() => !isEmpty(conversation.value)) // 是否显示聊天区域
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const skipGetMessageList = computed(() => {
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// 已加载到最后一页的话则不触发新的消息获取
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return total.value > 0 && Math.ceil(total.value / queryParams.pageSize) === queryParams.pageNo
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}) // 跳过消息获取
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/** 处理表情选择 */
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const handleEmojiSelect = (item: Emoji) => {
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message.value += item.name
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}
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/** 处理图片发送 */
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const handleSendPicture = async (picUrl: string) => {
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// 组织发送消息
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const msg = {
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conversationId: conversation.value.id,
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contentType: KeFuMessageContentTypeEnum.IMAGE,
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content: picUrl
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}
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await sendMessage(msg)
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}
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/** 发送文本消息 */
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const handleSendMessage = async () => {
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// 1. 校验消息是否为空
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if (isEmpty(unref(message.value))) {
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messageTool.notifyWarning('请输入消息后再发送哦！')
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return
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}
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// 2. 组织发送消息
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const msg = {
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conversationId: conversation.value.id,
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contentType: KeFuMessageContentTypeEnum.TEXT,
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content: message.value
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}
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await sendMessage(msg)
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}
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/** 真正发送消息 【共用】*/
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const sendMessage = async (msg: any) => {
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// 发送消息
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await KeFuMessageApi.sendKeFuMessage(msg)
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message.value = ''
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// 加载消息列表
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await refreshMessageList()
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}
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/** 滚动到底部 */
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const innerRef = ref<HTMLDivElement>()
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const scrollbarRef = ref<InstanceType<typeof ElScrollbarType>>()
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const scrollToBottom = async () => {
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// 1. 首次加载时滚动到最新消息，如果加载的是历史消息则不滚动
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if (loadHistory.value) {
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return
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}
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// 2.1 滚动到最新消息，关闭新消息提示
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await nextTick()
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scrollbarRef.value!.setScrollTop(innerRef.value!.clientHeight)
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showNewMessageTip.value = false
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// 2.2 消息已读
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await KeFuMessageApi.updateKeFuMessageReadStatus(conversation.value.id)
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}
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/** 查看新消息 */
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const handleToNewMessage = async () => {
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loadHistory.value = false
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await scrollToBottom()
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}
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const loadHistory = ref(false) // 加载历史消息
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/** 处理消息列表滚动事件(debounce 限流) */
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const handleScroll = debounce(({ scrollTop }) => {
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if (skipGetMessageList.value) {
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return
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}
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// 触顶自动加载下一页数据
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if (Math.floor(scrollTop) === 0) {
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handleOldMessage()
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}
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const wrap = scrollbarRef.value?.wrapRef
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// 触底重置
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if (Math.abs(wrap!.scrollHeight - wrap!.clientHeight - wrap!.scrollTop) < 1) {
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loadHistory.value = false
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refreshMessageList()
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}
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}, 200)
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/** 加载历史消息 */
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const handleOldMessage = async () => {
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// 记录已有页面高度
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const oldPageHeight = innerRef.value?.clientHeight
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if (!oldPageHeight) {
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return
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}
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loadHistory.value = true
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// 加载消息列表
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queryParams.pageNo += 1
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await getMessageList()
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// 等页面加载完后，获得上一页最后一条消息的位置，控制滚动到它所在位置
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scrollbarRef.value!.setScrollTop(innerRef.value!.clientHeight - oldPageHeight)
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}
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/**
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* 是否显示时间
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*
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* @param {*} item - 数据
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* @param {*} index - 索引
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*/
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const showTime = computed(() => (item: KeFuMessageRespVO, index: number) => {
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if (unref(messageList.value)[index + 1]) {
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let dateString = dayjs(unref(messageList.value)[index + 1].createTime).fromNow()
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return dateString !== dayjs(unref(item).createTime).fromNow()
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}
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return false
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})
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</script>
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<style lang="scss" scoped>
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.kefu {
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&-title {
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border-bottom: #e4e0e0 solid 1px;
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height: 60px;
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line-height: 60px;
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}
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&-content {
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position: relative;
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.newMessageTip {
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position: absolute;
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bottom: 35px;
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right: 35px;
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background-color: #fff;
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padding: 10px;
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border-radius: 30px;
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box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* 阴影效果 */
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}
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.ss-row-left {
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justify-content: flex-start;
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.kefu-message {
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margin-left: 20px;
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position: relative;
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&::before {
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content: '';
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width: 10px;
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height: 10px;
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left: -19px;
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top: calc(50% - 10px);
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position: absolute;
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border-left: 5px solid transparent;
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border-bottom: 5px solid transparent;
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border-top: 5px solid transparent;
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border-right: 5px solid #ffffff;
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}
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}
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}
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.ss-row-right {
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justify-content: flex-end;
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.kefu-message {
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margin-right: 20px;
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position: relative;
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&::after {
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content: '';
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width: 10px;
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height: 10px;
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right: -19px;
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top: calc(50% - 10px);
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position: absolute;
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border-left: 5px solid #ffffff;
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border-bottom: 5px solid transparent;
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border-top: 5px solid transparent;
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border-right: 5px solid transparent;
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}
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}
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}
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// 消息气泡
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.kefu-message {
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color: #333;
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border-radius: 5px;
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box-shadow: 3px 5px 15px rgba(0, 0, 0, 0.2);
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padding: 5px 10px;
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width: auto;
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max-width: 50%;
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text-align: left;
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display: inline-block !important;
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position: relative;
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word-break: break-all;
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background-color: #ffffff;
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transition: all 0.2s;
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&:hover {
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transform: scale(1.03);
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}
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}
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.date-message,
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.system-message {
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width: fit-content;
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border-radius: 12rpx;
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padding: 8rpx 16rpx;
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margin-bottom: 16rpx;
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background-color: #e8e8e8;
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color: #999;
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font-size: 24rpx;
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}
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}
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.chat-tools {
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width: 100%;
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border: #e4e0e0 solid 1px;
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border-radius: 10px;
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height: 44px;
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}
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::v-deep(textarea) {
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resize: none;
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}
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}
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</style>
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