Visualize-electronic-fences/src/layout/components/notice/index.vue

<template>
  <div v-loading="state.loading" class="layout-navbars-breadcrumb-user-news">
    <div class="head-box">
      <div class="head-box-title">通知公告</div>
      <div class="head-box-btn" @click="readAll">全部已读</div>
    </div>
    <div v-loading="state.loading" class="content-box">
      <template v-if="newsList.length > 0">
        <div v-for="(v, k) in newsList" :key="k" class="content-box-item" @click="onNewsClick(k)">
          <div class="item-conten">
            <div>{{ v.message }}</div>
            <div class="content-box-msg"></div>
            <div class="content-box-time">{{ v.time }}</div>
          </div>
          <!-- 已读/未读 -->
          <span v-if="v.read" class="el-tag el-tag--success el-tag--mini read">已读</span>
          <span v-else class="el-tag el-tag--danger el-tag--mini read">未读</span>
        </div>
      </template>
      <el-empty v-else :description="'消息为空'"></el-empty>
    </div>
    <!-- <div v-if="newsList.length > 0" class="foot-box" @click="onGoToGiteeClick">前往gitee</div> -->
  </div>
</template>

<script setup lang="ts" name="layoutBreadcrumbUserNews">
import { useNoticeStore } from '@/store/modules/notice';
import { listNotice } from '@/api/system/notice';

const noticeStore = useNoticeStore();
const { readAll } = useNoticeStore();

// 定义变量内容
const state = reactive({
  loading: false
});
const newsList = ref([]) as any;

/**
 * 过滤5分钟内的消息（最多5条）
 * @param messages 消息列表
 * @returns 过滤后的消息列表
 */
const filterMessages = (messages: any[]) => {
  const now = new Date().getTime();
  const fiveMinutesAgo = now - 5 * 60 * 1000; // 5分钟前的时间戳

  // 过滤掉5分钟前的消息
  const recentMessages = messages.filter((msg: any) => {
    const msgTime = new Date(msg.time).getTime();
    return msgTime >= fiveMinutesAgo;
  });

  // 如果5分钟内的消息超过5条，则只保留最新的5条
  if (recentMessages.length > 5) {
    return recentMessages.slice(0, 5); // 只取前5条最新消息
  }

  return recentMessages;
};

/**
 * 初始化数据
 * @returns
 */
const getTableData = async () => {
  state.loading = true;
  const allNotices = [...noticeStore.state.notices]; // 复制数组避免直接修改原数据

  // 过滤消息
  const filteredNotices = filterMessages(allNotices);
  newsList.value = filteredNotices;

  state.loading = false;
};

// 监听通知变化，自动过滤
watch(
  () => noticeStore.state.notices,
  (newNotices) => {
    const filteredNotices = filterMessages([...newNotices]);
    newsList.value = filteredNotices;
  },
  { deep: true }
);

//点击消息，写入已读
const onNewsClick = (item: any) => {
  if (newsList.value[item]) {
    newsList.value[item].read = true;
    //并且写入pinia
    noticeStore.state.notices = noticeStore.state.notices.map((notice: any, index: number) => {
      if (index === findOriginalIndex(item)) {
        return { ...notice, read: true };
      }
      return notice;
    });
  }
};

// 辅助函数：找到原始索引
const findOriginalIndex = (filteredIndex: number) => {
  const filteredNotices = filterMessages([...noticeStore.state.notices]);
  const currentMessage = filteredNotices[filteredIndex];

  // 在原始数组中查找对应消息的索引
  return noticeStore.state.notices.findIndex((notice: any) => notice.message === currentMessage.message && notice.time === currentMessage.time);
};

// 前往通知中心点击
const onGoToGiteeClick = () => {
  window.open('https://gitee.com/dromara/RuoYi-Vue-Plus/tree/5.X/');
};

onMounted(() => {
  nextTick(() => {
    getTableData();
    console.log('消息列表:', newsList.value);
  });
});
</script>

<style lang="scss" scoped>
.layout-navbars-breadcrumb-user-news {
  .head-box {
    display: flex;
    border-bottom: 1px solid var(--el-border-color-lighter);
    box-sizing: border-box;
    color: var(--el-text-color-primary);
    justify-content: space-between;
    height: 35px;
    align-items: center;
    .head-box-btn {
      color: var(--el-color-primary);
      font-size: 13px;
      cursor: pointer;
      opacity: 0.8;
      &:hover {
        opacity: 1;
      }
    }
  }
  .content-box {
    height: 300px;
    overflow: auto;
    font-size: 13px;
    .content-box-item {
      padding-top: 12px;
      display: flex;
      &:last-of-type {
        padding-bottom: 12px;
      }
      .content-box-msg {
        color: var(--el-text-color-secondary);
        margin-top: 5px;
        margin-bottom: 5px;
      }
      .content-box-time {
        color: var(--el-text-color-secondary);
      }
      .item-conten {
        width: 100%;
        display: flex;
        flex-direction: column;
      }
    }
  }
  .foot-box {
    height: 35px;
    color: var(--el-color-primary);
    font-size: 13px;
    cursor: pointer;
    opacity: 0.8;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top: 1px solid var(--el-border-color-lighter);
    &:hover {
      opacity: 1;
    }
  }
  :deep(.el-empty__description p) {
    font-size: 13px;
  }
}
</style>