<template>
  <div class="notification-page">
    <!-- 页面标题 -->
    <div class="page-header">
      <div class="header-left">
        <h1 class="page-title">消息通知</h1>
        <span class="unread-badge" v-if="unreadTotal > 0">
          {{ unreadTotal }} 条未读
        </span>
      </div>
      <div class="header-actions">
        <a-button @click="handleMarkAll" :loading="markAllLoading" :disabled="unreadTotal === 0">
          <CheckOutlined />
          全部标记已读
        </a-button>
        <a-popconfirm
          title="确定要清空所有已读消息吗？"
          ok-text="确定"
          cancel-text="取消"
          @confirm="handleClearRead"
        >
          <a-button :disabled="readCount === 0">
            <DeleteOutlined />
            清空已读
          </a-button>
        </a-popconfirm>
      </div>
    </div>

    <!-- 过滤 Tabs -->
    <div class="filter-bar">
      <div class="filter-type-group">
        <a-radio-group v-model:value="filterType" button-style="solid" size="middle">
          <a-radio-button value="">
            全部
            <span v-if="unreadTotal > 0" class="tab-count">{{ unreadTotal }}</span>
          </a-radio-button>
          <a-radio-button
            v-for="(info, key) in notificationTypeMap"
            :key="key"
            :value="key"
          >
            {{ info.icon }} {{ info.label }}
            <span v-if="(unreadByType as any)[key] > 0" class="tab-count">
              {{ (unreadByType as any)[key] }}
            </span>
          </a-radio-button>
        </a-radio-group>
      </div>

      <!-- 已读/未读切换 -->
      <div class="filter-read-group">
        <a-segmented v-model:value="readFilter" :options="readFilterOptions" size="small" />
      </div>
    </div>

    <!-- 通知列表 -->
    <a-spin :spinning="listLoading">
      <div class="notification-list">
        <template v-if="listData.length">
          <div
            v-for="item in listData"
            :key="item.id"
            class="notif-card"
            :class="{ unread: !item.isRead }"
            @click="handleItemClick(item)"
          >
            <div class="notif-type-icon" :style="{ background: notificationTypeMap[item.type!]?.color + '15' }">
              {{ notificationTypeMap[item.type!]?.icon || '📢' }}
            </div>
            <div class="notif-body">
              <div class="notif-header">
                <span class="notif-type-tag" :style="{ color: notificationTypeMap[item.type!]?.color }">
                  {{ notificationTypeMap[item.type!]?.label || '通知' }}
                </span>
                <span class="notif-time">{{ formatTime(item.createTime) }}</span>
              </div>
              <div class="notif-title">{{ item.title }}</div>
              <div v-if="item.content" class="notif-content">{{ item.content }}</div>
              <div v-if="item.senderName" class="notif-footer">
                <a-avatar :size="18" :src="item.senderAvatar" class="sender-avatar">
                  <template #icon><UserOutlined /></template>
                </a-avatar>
                <span class="sender-name">{{ item.senderName }}</span>
              </div>
            </div>
            <div class="notif-actions" @click.stop>
              <a-dropdown :trigger="['click']">
                <a-button type="text" size="small" class="action-btn">
                  <EllipsisOutlined />
                </a-button>
                <template #overlay>
                  <a-menu>
                    <a-menu-item v-if="!item.isRead" @click="handleMarkRead(item)">
                      <CheckOutlined /> 标记已读
                    </a-menu-item>
                    <a-menu-item @click="handleDelete(item)">
                      <DeleteOutlined /> 删除
                    </a-menu-item>
                  </a-menu>
                </template>
              </a-dropdown>
              <div v-if="!item.isRead" class="unread-dot" />
            </div>
          </div>
        </template>

        <a-empty v-else description="暂无通知消息" class="empty-state">
          <template #image>
            <div class="empty-icon">🔔</div>
          </template>
        </a-empty>
      </div>

      <!-- 分页 -->
      <div v-if="pagination.total > 0" class="pagination-wrap">
        <a-pagination
          v-model:current="pagination.page"
          :total="pagination.total"
          :page-size="pagination.pageSize"
          :show-quick-jumper="true"
          :show-total="(total: number) => `共 ${total} 条`"
          size="small"
          @change="loadData"
        />
      </div>
    </a-spin>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, onMounted, watch } from 'vue'
import {
  CheckOutlined,
  DeleteOutlined,
  EllipsisOutlined,
  UserOutlined,
} from '@ant-design/icons-vue'
import { message } from 'ant-design-vue'
import {
  pageNotification,
  markRead,
  markAllRead,
  removeNotification,
  clearReadNotifications,
} from '@/api/app/notification'
import {
  useNotificationCenter,
  notificationTypeMap,
} from '@/composables/useNotificationCenter'
import type { Notification, NotificationType } from '@/api/app/notification/model'

const {
  unreadTotal,
  unreadByType,
  fetchUnreadCount,
  startPolling,
  stopPolling,
  formatTime,
  getNotificationLink,
} = useNotificationCenter()

// 过滤状态
const filterType = ref<NotificationType | ''>('')
const readFilter = ref('all')
const readFilterOptions = [
  { label: '全部', value: 'all' },
  { label: '未读', value: 'unread' },
  { label: '已读', value: 'read' },
]

// 列表数据
const listData = ref<Notification[]>([])
const listLoading = ref(false)
const markAllLoading = ref(false)
const readCount = ref(0)

// 分页
const pagination = reactive({
  page: 1,
  pageSize: 15,
  total: 0,
})

// 计算已读数
function calcReadCount() {
  readCount.value = listData.value.filter((n) => n.isRead === 1).length
}

// 加载数据
async function loadData() {
  listLoading.value = true
  try {
    const params: Record<string, unknown> = {
      page: pagination.page,
      limit: pagination.pageSize,
    }
    if (filterType.value) params.type = filterType.value
    if (readFilter.value === 'unread') params.isRead = 0
    if (readFilter.value === 'read') params.isRead = 1

    const res = await pageNotification(params)
    listData.value = res.list ?? []
    pagination.total = res.count ?? 0
    calcReadCount()
  } catch {
    message.error('加载通知失败')
  } finally {
    listLoading.value = false
  }
}

// 点击通知项
async function handleItemClick(item: Notification) {
  if (!item.isRead && item.id) {
    try {
      await markRead(item.id)
      item.isRead = 1
      if (unreadTotal.value > 0) unreadTotal.value--
      calcReadCount()
    } catch {
      // 静默
    }
  }
  const link = getNotificationLink(item)
  navigateTo(link)
}

// 标记单条已读
async function handleMarkRead(item: Notification) {
  if (!item.id) return
  try {
    await markRead(item.id)
    item.isRead = 1
    if (unreadTotal.value > 0) unreadTotal.value--
    calcReadCount()
  } catch {
    message.error('操作失败')
  }
}

// 全部标记已读
async function handleMarkAll() {
  markAllLoading.value = true
  try {
    const type = filterType.value || undefined
    await markAllRead(type ? { type } : undefined)
    listData.value.forEach((n) => { n.isRead = 1 })
    unreadTotal.value = 0
    calcReadCount()
    message.success('已全部标记为已读')
  } catch {
    message.error('操作失败')
  } finally {
    markAllLoading.value = false
  }
}

// 删除通知
async function handleDelete(item: Notification) {
  if (!item.id) return
  try {
    await removeNotification(item.id)
    listData.value = listData.value.filter((n) => n.id !== item.id)
    if (!item.isRead && unreadTotal.value > 0) unreadTotal.value--
    pagination.total--
    calcReadCount()
    message.success('已删除')
  } catch {
    message.error('删除失败')
  }
}

// 清空已读
async function handleClearRead() {
  try {
    const type = filterType.value || undefined
    await clearReadNotifications(type ? { type } : undefined)
    loadData()
    fetchUnreadCount()
    message.success('已清空已读消息')
  } catch {
    message.error('操作失败')
  }
}

// 监听过滤变化
watch([filterType, readFilter], () => {
  pagination.page = 1
  loadData()
})

onMounted(() => {
  startPolling()
  loadData()
})

onUnmounted(() => {
  stopPolling()
})

// SEO
useHead({ title: '消息通知 - 控制台' })
</script>

<style scoped>
.notification-page {
  max-width: 1280px;
  padding: 0 16px;
  margin: 0 auto;
}

/* ===== 页面头部 ===== */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 24px 0 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: #1f2937;
  margin: 0;
}

.unread-badge {
  background: linear-gradient(135deg, #e6f4ff 0%, #f0f7ff 100%);
  color: #1890ff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 9999px;
  border: 1px solid rgba(24, 144, 255, 0.2);
}

.header-actions {
  display: flex;
  gap: 8px;
}

/* ===== 过滤栏 ===== */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}

.filter-type-group {
  flex: 1;
  min-width: 0;
}

.filter-bar :deep(.ant-radio-button-wrapper) {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.tab-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(24, 144, 255, 0.15);
  color: #1890ff;
  border-radius: 9999px;
  margin-left: 4px;
}

/* ===== 通知列表 ===== */
.notification-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.notif-card {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: #fff;
  border: 1px solid #f0f0f0;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.notif-card:hover {
  border-color: #d9d9d9;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.notif-card.unread {
  border-color: #e6f4ff;
  background: linear-gradient(135deg, #f0f7ff 0%, #fafbff 100%);
}

.notif-card.unread::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 32px;
  background: #1890ff;
  border-radius: 0 4px 4px 0;
}

.notif-type-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-size: 20px;
}

.notif-body {
  flex: 1;
  min-width: 0;
}

.notif-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.notif-type-tag {
  font-size: 12px;
  font-weight: 500;
}

.notif-time {
  font-size: 12px;
  color: rgba(0, 0, 0, 0.35);
}

.notif-title {
  font-size: 14px;
  font-weight: 500;
  color: rgba(0, 0, 0, 0.88);
  line-height: 1.5;
}

.notif-card.unread .notif-title {
  font-weight: 600;
}

.notif-content {
  font-size: 13px;
  color: rgba(0, 0, 0, 0.45);
  line-height: 1.6;
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.notif-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}

.sender-avatar {
  font-size: 10px;
}

.sender-name {
  font-size: 12px;
  color: rgba(0, 0, 0, 0.45);
}

.notif-actions {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  gap: 4px;
}

.action-btn {
  color: rgba(0, 0, 0, 0.35);
}

.action-btn:hover {
  color: rgba(0, 0, 0, 0.65);
}

.unread-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #1890ff;
  flex-shrink: 0;
}

/* ===== 空状态 ===== */
.empty-state {
  padding: 80px 0;
}

.empty-icon {
  font-size: 64px;
  opacity: 0.3;
}

/* ===== 分页 ===== */
.pagination-wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
  padding: 8px 0;
}
</style>
