<template>
  <view class="container">
    <!-- 导航栏 -->
    <view class="nav-bar">
      <text class="nav-back" @click="goBack">‹</text>
      <text class="nav-title">通知</text>
      <text class="nav-right"></text>
    </view>

    <!-- 通知列表 -->
    <view class="notification-list">
      <view 
        class="notification-item" 
        v-for="(item, index) in notificationList" 
        :key="index"
        @click="viewNotification(item)"
      >
        <view class="notification-content">
          <view class="notification-header">
            <text class="notification-title">{{ item.title }}</text>
            <view class="notification-status" v-if="!item.isRead">
              <text class="unread-dot"></text>
            </view>
          </view>
          <text class="notification-summary">{{ item.summary }}</text>
          <text class="notification-time">{{ item.time }}</text>
        </view>
        <text class="notification-arrow">></text>
      </view>
      
      <!-- 空状态 -->
      <view class="empty-state" v-if="notificationList.length === 0">
        <image src="/static/logo.png" class="empty-icon" />
        <text class="empty-text">暂无通知消息</text>
      </view>
    </view>

    <!-- 通知详情弹窗 -->
    <view class="notification-modal" v-if="showModal" @click="closeModal">
      <view class="modal-content" @click.stop>
        <view class="modal-header">
          <text class="modal-title">{{ selectedNotification.title }}</text>
          <text class="modal-close" @click="closeModal">×</text>
        </view>
        <view class="modal-body">
          <text class="modal-time">{{ selectedNotification.time }}</text>
          <text class="modal-text">{{ selectedNotification.content }}</text>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
export default {
  data() {
    return {
      showModal: false,
      selectedNotification: {},
      notificationList: [
        {
          id: 1,
          title: '系统维护通知',
          summary: '系统将于今晚22:00-24:00进行维护升级，期间可能影响正常使用...',
          content: '尊敬的用户，为了提供更好的服务体验，我们将于今晚22:00-24:00对系统进行维护升级。维护期间，部分功能可能暂时无法使用，给您带来的不便敬请谅解。维护完成后，系统将恢复正常运行。',
          time: '2024-01-15 14:30',
          isRead: false
        },
        {
          id: 2,
          title: '电费缴费提醒',
          summary: '您有一笔电费即将到期，请及时缴费以免影响正常用电...',
          content: '您好，您的电费账单已生成，金额为￥156.80，缴费截止日期为2024年1月20日。请您及时缴费，避免因逾期而影响正常用电。如有疑问，请联系客服。',
          time: '2024-01-14 09:15',
          isRead: true
        },
        {
          id: 3,
          title: '月度用电报告',
          summary: '您的12月份用电报告已生成，请查看详细用电情况...',
          content: '您的12月份用电报告已生成。本月总用电量：245.6度，环比上月增长8.5%。其中峰时用电：156.2度，谷时用电：89.4度。建议您合理安排用电时间，节约用电成本。',
          time: '2024-01-01 08:00',
          isRead: true
        },
        {
          id: 4,
          title: '新功能上线通知',
          summary: '电费管理系统新增在线客服功能，欢迎体验使用...',
          content: '为了更好地为您服务，我们新增了在线客服功能。您可以通过"我的-联系客服"功能，随时咨询电费相关问题。客服工作时间：周一至周五 9:00-18:00。',
          time: '2023-12-28 16:45',
          isRead: true
        }
      ]
    }
  },
  methods: {
    goBack() {
      uni.navigateBack()
    },
    viewNotification(item) {
      this.selectedNotification = item
      this.showModal = true
      
      // 标记为已读
      if (!item.isRead) {
        item.isRead = true
        this.updateNotificationStatus(item.id)
      }
    },
    closeModal() {
      this.showModal = false
      this.selectedNotification = {}
    },
    updateNotificationStatus(id) {
      // 这里可以调用API更新通知状态
      console.log('标记通知为已读:', id)
    }
  }
}
</script>

<style scoped>
.container {
  background-color: #f5f5f5;
  min-height: 100vh;
}

.nav-bar {
  background-color: #007aff;
  color: white;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-back {
  font-size: 24px;
  font-weight: bold;
  width: 60px;
}

.nav-title {
  font-size: 18px;
  font-weight: bold;
  flex: 1;
  text-align: center;
}

.nav-right {
  width: 60px;
}

.notification-list {
  padding: 15px;
}

.notification-item {
  background-color: white;
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.notification-content {
  flex: 1;
}

.notification-header {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}

.notification-title {
  font-size: 16px;
  font-weight: bold;
  color: #333;
  flex: 1;
}

.notification-status {
  margin-left: 10px;
}

.unread-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: #ff4757;
  border-radius: 4px;
}

.notification-summary {
  font-size: 14px;
  color: #666;
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.notification-time {
  font-size: 12px;
  color: #999;
}

.notification-arrow {
  color: #ccc;
  font-size: 16px;
  margin-left: 10px;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  width: 80px;
  height: 80px;
  opacity: 0.3;
  margin-bottom: 20px;
}

.empty-text {
  font-size: 16px;
  color: #999;
}

.notification-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background-color: white;
  border-radius: 15px;
  margin: 20px;
  max-height: 70vh;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid #f0f0f0;
}

.modal-title {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  flex: 1;
}

.modal-close {
  font-size: 24px;
  color: #999;
  width: 30px;
  text-align: center;
}

.modal-body {
  padding: 20px;
  max-height: 50vh;
  overflow-y: auto;
}

.modal-time {
  font-size: 12px;
  color: #999;
  margin-bottom: 15px;
  display: block;
}

.modal-text {
  font-size: 16px;
  color: #333;
  line-height: 1.6;
}
</style>
