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<template>
<el-container v-if="showKeFuMessageList" class="kefu">
<el-header class="kefu-header">
<div class="kefu-title">{{ conversation.userNickname }}</div>
</el-header>
<el-main class="kefu-content overflow-visible">
<el-scrollbar ref="scrollbarRef" always @scroll="handleScroll">
<div v-if="refreshContent" ref="innerRef" class="w-[100%] px-10px">
<!-- 消息列表 -->
<div v-for="(item, index) in getMessageList0" :key="item.id" class="w-[100%]">
<div class="flex justify-center items-center mb-20px">
<!-- 日期 -->
<div
v-if="
item.contentType !== KeFuMessageContentTypeEnum.SYSTEM && showTime(item, index)
"
class="date-message"
>
{{ formatDate(item.createTime) }}
</div>
<!-- 系统消息 -->
<div
v-if="item.contentType === KeFuMessageContentTypeEnum.SYSTEM"
class="system-message"
>
{{ item.content }}
</div>
</div>
<div
:class="[
item.senderType === UserTypeEnum.MEMBER
? `ss-row-left`
: item.senderType === UserTypeEnum.ADMIN
? `ss-row-right`
: ''
]"
class="flex mb-20px w-[100%]"
>
<el-avatar
v-if="item.senderType === UserTypeEnum.MEMBER"
:src="conversation.userAvatar"
alt="avatar"
class="w-60px h-60px"
/>
<div
:class="{
'kefu-message': KeFuMessageContentTypeEnum.TEXT === item.contentType
}"
class="p-10px"
>
<!-- 文本消息 -->
<MessageItem :message="item">
<template v-if="KeFuMessageContentTypeEnum.TEXT === item.contentType">
<div
v-dompurify-html="replaceEmoji(getMessageContent(item).text || item.content)"
class="flex items-center"
></div>
</template>
</MessageItem>
<!-- 图片消息 -->
<MessageItem :message="item">
<el-image
v-if="KeFuMessageContentTypeEnum.IMAGE === item.contentType"
:initial-index="0"
:preview-src-list="[getMessageContent(item).picUrl || item.content]"
:src="getMessageContent(item).picUrl || item.content"
class="w-200px"
fit="contain"
preview-teleported
/>
</MessageItem>
<!-- 商品消息 -->
<MessageItem :message="item">
<ProductItem
v-if="KeFuMessageContentTypeEnum.PRODUCT === item.contentType"
:picUrl="getMessageContent(item).picUrl"
:price="getMessageContent(item).price"
:sales-count="getMessageContent(item).salesCount"
:spuId="getMessageContent(item).spuId"
:stock="getMessageContent(item).stock"
:title="getMessageContent(item).spuName"
class="max-w-300px"
/>
</MessageItem>
<!-- 订单消息 -->
<MessageItem :message="item">
<OrderItem
v-if="KeFuMessageContentTypeEnum.ORDER === item.contentType"
:message="item"
class="max-w-100%"
/>
</MessageItem>
</div>
<el-avatar
v-if="item.senderType === UserTypeEnum.ADMIN"
:src="item.senderAvatar"
alt="avatar"
/>
</div>
</div>
</div>
</el-scrollbar>
<div
v-show="showNewMessageTip"
class="newMessageTip flex items-center cursor-pointer"
@click="handleToNewMessage"
>
<span>有新消息</span>
<Icon class="ml-5px" icon="ep:bottom" />
</div>
</el-main>
<el-footer class="kefu-footer">
<div class="chat-tools flex items-center">
<EmojiSelectPopover @select-emoji="handleEmojiSelect" />
<PictureSelectUpload
class="ml-15px mt-3px cursor-pointer"
@send-picture="handleSendPicture"
/>
</div>
<el-input
v-model="message"
:rows="6"
placeholder="输入消息Enter发送Shift+Enter换行"
style="border-style: none"
type="textarea"
@keyup.enter.prevent="handleSendMessage"
/>
</el-footer>
</el-container>
<el-container v-else class="kefu">
<el-main>
<el-empty description="请选择左侧的一个会话后开始" />
</el-main>
</el-container>
</template>
<script lang="ts" setup>
import { ElScrollbar as ElScrollbarType } from 'element-plus'
import { KeFuMessageApi, KeFuMessageRespVO } from '@/api/mall/promotion/kefu/message'
import { KeFuConversationRespVO } from '@/api/mall/promotion/kefu/conversation'
import EmojiSelectPopover from './tools/EmojiSelectPopover.vue'
import PictureSelectUpload from './tools/PictureSelectUpload.vue'
import ProductItem from './message/ProductItem.vue'
import OrderItem from './message/OrderItem.vue'
import { Emoji, useEmoji } from './tools/emoji'
import { KeFuMessageContentTypeEnum } from './tools/constants'
import { isEmpty } from '@/utils/is'
import { UserTypeEnum } from '@/utils/constants'
import { formatDate } from '@/utils/formatTime'
import dayjs from 'dayjs'
import relativeTime from 'dayjs/plugin/relativeTime'
import { debounce } from 'lodash-es'
import { jsonParse } from '@/utils'
import { useMallKefuStore } from '@/store/modules/mall/kefu'
dayjs.extend(relativeTime)
defineOptions({ name: 'KeFuMessageList' })
const message = ref('') // 消息弹窗
const { replaceEmoji } = useEmoji()
const messageTool = useMessage()
const messageList = ref<KeFuMessageRespVO[]>([]) // 消息列表
const conversation = ref<KeFuConversationRespVO>({} as KeFuConversationRespVO) // 用户会话
const showNewMessageTip = ref(false) // 显示有新消息提示
const queryParams = reactive({
conversationId: 0,
createTime: undefined
})
const total = ref(0) // 消息总条数
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
const kefuStore = useMallKefuStore() // 客服缓存
/** 获悉消息内容 */
const getMessageContent = computed(() => (item: any) => jsonParse(item.content))
/** 获得消息列表 */
const getMessageList = async () => {
const res = await KeFuMessageApi.getKeFuMessageList(queryParams)
if (isEmpty(res)) {
// 当返回的是空列表说明没有消息或者已经查询完了历史消息
skipGetMessageList.value = true
return
}
queryParams.createTime = formatDate(res.at(-1).createTime) as any
// 情况一:加载最新消息
if (!queryParams.createTime) {
messageList.value = res
} else {
// 情况二:加载历史消息
for (const item of res) {
pushMessage(item)
}
}
refreshContent.value = true
}
/** 添加消息 */
const pushMessage = (message: any) => {
if (messageList.value.some((val) => val.id === message.id)) {
return
}
messageList.value.push(message)
}
/** 按照时间倒序,获取消息列表 */
const getMessageList0 = computed(() => {
messageList.value.sort((a: any, b: any) => a.createTime - b.createTime)
return messageList.value
})
/** 刷新消息列表 */
const refreshMessageList = async (message?: any) => {
if (!conversation.value) {
return
}
if (typeof message !== 'undefined') {
// 当前查询会话与消息所属会话不一致则不做处理
if (message.conversationId !== conversation.value.id) {
return
}
pushMessage(message)
} else {
queryParams.createTime = undefined
await getMessageList()
}
if (loadHistory.value) {
// 右下角显示有新消息提示
showNewMessageTip.value = true
} else {
// 滚动到最新消息处
await handleToNewMessage()
}
}
/** 获得新会话的消息列表, 点击切换时读取缓存然后异步获取新消息merge 下; */
const getNewMessageList = async (val: KeFuConversationRespVO) => {
// 1. 缓存当前会话消息列表
kefuStore.saveMessageList(conversation.value.id, messageList.value)
// 2.1 会话切换,重置相关参数
messageList.value = kefuStore.getConversationMessageList(val.id) || []
total.value = messageList.value.length || 0
loadHistory.value = false
refreshContent.value = false
skipGetMessageList.value = false
// 2.2 设置会话相关属性
conversation.value = val
queryParams.conversationId = val.id
queryParams.createTime = undefined
// 3. 获取消息
await refreshMessageList()
}
defineExpose({ getNewMessageList, refreshMessageList })
const showKeFuMessageList = computed(() => !isEmpty(conversation.value)) // 是否显示聊天区域
const skipGetMessageList = ref(false) // 跳过消息获取
/** 处理表情选择 */
const handleEmojiSelect = (item: Emoji) => {
message.value += item.name
}
/** 处理图片发送 */
const handleSendPicture = async (picUrl: string) => {
// 组织发送消息
const msg = {
conversationId: conversation.value.id,
contentType: KeFuMessageContentTypeEnum.IMAGE,
content: JSON.stringify({ picUrl })
}
await sendMessage(msg)
}
/** 发送文本消息 */
const handleSendMessage = async (event: any) => {
// shift 不发送
if (event.shiftKey) {
return
}
// 1. 校验消息是否为空
if (isEmpty(unref(message.value))) {
messageTool.notifyWarning('请输入消息后再发送哦!')
return
}
// 2. 组织发送消息
const msg = {
conversationId: conversation.value.id,
contentType: KeFuMessageContentTypeEnum.TEXT,
content: JSON.stringify({ text: message.value })
}
await sendMessage(msg)
}
/** 真正发送消息 【共用】*/
const sendMessage = async (msg: any) => {
// 发送消息
await KeFuMessageApi.sendKeFuMessage(msg)
message.value = ''
// 加载消息列表
await refreshMessageList()
// 更新会话缓存
await kefuStore.updateConversation(conversation.value.id)
}
/** 滚动到底部 */
const innerRef = ref<HTMLDivElement>()
const scrollbarRef = ref<InstanceType<typeof ElScrollbarType>>()
const scrollToBottom = async () => {
// 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
if (loadHistory.value) {
return
}
// 2.1 滚动到最新消息,关闭新消息提示
await nextTick()
scrollbarRef.value!.setScrollTop(innerRef.value!.clientHeight)
showNewMessageTip.value = false
// 2.2 消息已读
await KeFuMessageApi.updateKeFuMessageReadStatus(conversation.value.id)
}
/** 查看新消息 */
const handleToNewMessage = async () => {
loadHistory.value = false
await scrollToBottom()
}
const loadHistory = ref(false) // 加载历史消息
/** 处理消息列表滚动事件(debounce 限流) */
const handleScroll = debounce(({ scrollTop }) => {
if (skipGetMessageList.value) {
return
}
// 触顶自动加载下一页数据
if (Math.floor(scrollTop) === 0) {
handleOldMessage()
}
const wrap = scrollbarRef.value?.wrapRef
// 触底重置
if (Math.abs(wrap!.scrollHeight - wrap!.clientHeight - wrap!.scrollTop) < 1) {
loadHistory.value = false
refreshMessageList()
}
}, 200)
/** 加载历史消息 */
const handleOldMessage = async () => {
// 记录已有页面高度
const oldPageHeight = innerRef.value?.clientHeight
if (!oldPageHeight) {
return
}
loadHistory.value = true
await getMessageList()
// 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
scrollbarRef.value!.setScrollTop(innerRef.value!.clientHeight - oldPageHeight)
}
/**
* 是否显示时间
*
* @param {*} item - 数据
* @param {*} index - 索引
*/
const showTime = computed(() => (item: KeFuMessageRespVO, index: number) => {
if (unref(messageList.value)[index + 1]) {
let dateString = dayjs(unref(messageList.value)[index + 1].createTime).fromNow()
return dateString !== dayjs(unref(item).createTime).fromNow()
}
return false
})
</script>
<style lang="scss" scoped>
.kefu {
background-color: #fff;
width: calc(100% - 300px - 260px);
border-left: var(--el-border-color) solid 1px;
.kefu-header {
background: #fbfbfb;
box-shadow: 0 0 0 0 #dcdfe6;
display: flex;
align-items: center;
justify-content: space-between;
&-title {
font-size: 18px;
font-weight: bold;
}
}
&-content {
margin: 0;
padding: 10px;
position: relative;
height: 100%;
width: 100%;
.newMessageTip {
position: absolute;
bottom: 35px;
right: 35px;
background-color: var(--app-content-bg-color);
padding: 10px;
border-radius: 30px;
font-size: 12px;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* 阴影效果 */
}
.ss-row-left {
justify-content: flex-start;
.kefu-message {
background-color: rgb(245, 245, 245);
margin-left: 10px;
margin-top: 18px;
border-top-right-radius: 10px;
border-bottom-right-radius: 10px;
border-bottom-left-radius: 10px;
}
}
.ss-row-right {
justify-content: flex-end;
.kefu-message {
background-color: rgb(206, 223, 255);
margin-right: 10px;
margin-top: 18px;
border-top-left-radius: 10px;
border-bottom-right-radius: 10px;
border-bottom-left-radius: 10px;
}
}
// 消息气泡
.kefu-message {
color: #414141;
font-weight: 500;
padding: 5px 10px;
width: auto;
max-width: 50%;
text-align: left;
display: inline-block !important;
word-break: break-all;
transition: all 0.2s;
&:hover {
transform: scale(1.03);
}
}
.date-message,
.system-message {
width: fit-content;
border-radius: 12rpx;
padding: 8rpx 16rpx;
margin-bottom: 16rpx;
color: #999;
font-size: 24rpx;
}
}
.kefu-footer {
display: flex;
flex-direction: column;
height: auto;
margin: 0;
padding: 0;
border-top: var(--el-border-color) solid 1px;
.chat-tools {
width: 100%;
height: 44px;
}
}
::v-deep(textarea) {
resize: none;
}
:deep(.el-input__wrapper) {
box-shadow: none !important;
border-radius: 0;
}
::v-deep(.el-textarea__inner) {
box-shadow: none !important;
}
}
</style>