<template>
  <ListPageLayout
    title="消费记录管理"
    subtitle="管理系统内所有用户的消费记录"
  >
    <!-- 单用户模式显示 -->
    <template #stats v-if="singleUserMode">
      <div class="flex items-center gap-2 text-sm text-gray-600">
        <User class="w-4 h-4" />
        <span>当前用户：{{ currentUser?.company_name || currentUser?.phone }}</span>
        <span class="text-gray-400">(仅显示当前用户)</span>
      </div>
    </template>

    <!-- 单用户模式操作按钮 -->
    <template #actions v-if="singleUserMode">
      <div class="flex items-center gap-3">
        <div class="flex items-center gap-2 text-sm text-gray-600">
          <User class="w-4 h-4" />
          <span>{{ currentUser?.company_name || currentUser?.phone }}</span>
        </div>
        <el-button size="small" @click="exitSingleUserMode">
          <Close class="w-4 h-4 mr-1" />
          取消
        </el-button>
        <el-button size="small" type="primary" @click="goBackToUsers">
          <Back class="w-4 h-4 mr-1" />
          返回用户管理
        </el-button>
      </div>
    </template>

    <!-- 筛选区域 -->
    <template #filters>
      <FilterSection>
        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
          <FilterItem label="企业名称" v-if="!singleUserMode">
            <el-input
              v-model="filters.company_name"
              placeholder="输入企业名称"
              clearable
              @input="handleFilterChange"
              class="w-full"
            />
          </FilterItem>

          <FilterItem label="产品名称">
            <el-input
              v-model="filters.product_name"
              placeholder="输入产品名称"
              clearable
              @input="handleFilterChange"
              class="w-full"
            />
          </FilterItem>

          <FilterItem label="交易ID">
            <el-input
              v-model="filters.transaction_id"
              placeholder="输入交易ID"
              clearable
              @input="handleFilterChange"
              class="w-full"
            />
          </FilterItem>

          <FilterItem label="消费时间" class="md:col-span-2">
            <el-date-picker
              v-model="dateRange"
              type="datetimerange"
              range-separator="至"
              start-placeholder="开始时间"
              end-placeholder="结束时间"
              format="YYYY-MM-DD HH:mm:ss"
              value-format="YYYY-MM-DD HH:mm:ss"
              @change="handleTimeRangeChange"
              class="w-full"
            />
          </FilterItem>

          <FilterItem label="金额范围">
            <div class="flex gap-2">
              <el-input
                v-model="filters.min_amount"
                placeholder="最小金额"
                clearable
                @input="handleFilterChange"
                class="flex-1"
              />
              <span class="text-gray-400 self-center">-</span>
              <el-input
                v-model="filters.max_amount"
                placeholder="最大金额"
                clearable
                @input="handleFilterChange"
                class="flex-1"
              />
            </div>
          </FilterItem>
        </div>

        <template #stats>
          共找到 {{ total }} 条消费记录
        </template>

        <template #buttons>
          <el-button @click="resetFilters">重置筛选</el-button>
          <el-button type="primary" @click="loadTransactions">应用筛选</el-button>
        </template>
      </FilterSection>
    </template>

    <!-- 表格区域 -->
    <template #table>
      <div v-if="loading" class="flex justify-center items-center py-12">
        <el-loading size="large" />
      </div>

      <div v-else class="bg-white rounded-lg shadow-sm border border-gray-200 overflow-hidden">
        <el-table
          :data="transactions"
          style="width: 100%"
          :header-cell-style="{
            background: '#f8fafc',
            color: '#475569',
            fontWeight: '600',
            fontSize: '14px'
          }"
          :cell-style="{
            fontSize: '14px',
            color: '#1e293b'
          }"
        >
          <el-table-column prop="transaction_id" label="交易ID" min-width="180">
            <template #default="{ row }">
              <span class="font-mono text-sm text-gray-600">{{ row.transaction_id }}</span>
            </template>
          </el-table-column>

          <el-table-column prop="company_name" label="企业名称" min-width="150" v-if="!singleUserMode">
            <template #default="{ row }">
              <div>
                <div class="font-medium text-blue-600">{{ row.company_name || '未知企业' }}</div>
                <div class="text-xs text-gray-500">{{ row.user?.phone }}</div>
              </div>
            </template>
          </el-table-column>

          <el-table-column prop="product_name" label="产品名称" min-width="150">
            <template #default="{ row }">
              <div>
                <div class="font-medium text-blue-600">{{ row.product_name || '未知产品' }}</div>
              </div>
            </template>
          </el-table-column>

          <el-table-column prop="amount" label="消费金额" width="120">
            <template #default="{ row }">
              <span class="font-semibold text-red-600">¥{{ formatPrice(row.amount) }}</span>
            </template>
          </el-table-column>

          <el-table-column prop="created_at" label="消费时间" width="160">
            <template #default="{ row }">
              <div class="text-sm">
                <div class="text-gray-900">{{ formatDate(row.created_at) }}</div>
                <div class="text-gray-500">{{ formatTime(row.created_at) }}</div>
              </div>
            </template>
          </el-table-column>

          <el-table-column label="操作" width="120" fixed="right">
            <template #default="{ row }">
              <div class="flex items-center space-x-2">
                <el-button
                  size="small"
                  type="primary"
                  @click="handleViewDetail(row)"
                >
                  查看详情
                </el-button>
              </div>
            </template>
          </el-table-column>
        </el-table>
      </div>
    </template>

    <!-- 分页 -->
    <template #pagination>
      <el-pagination
        v-if="total > 0"
        v-model:current-page="currentPage"
        v-model:page-size="pageSize"
        :page-sizes="[10, 20, 50, 100]"
        :total="total"
        layout="total, sizes, prev, pager, next, jumper"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </template>

    <!-- 消费记录详情弹窗 -->
    <el-dialog
      v-model="detailDialogVisible"
      title="消费记录详情"
      width="800px"
      class="transaction-detail-dialog"
    >
      <div v-if="selectedTransaction" class="space-y-6">
        <!-- 基本信息 -->
        <div class="info-section">
          <h4 class="text-lg font-semibold text-gray-900 mb-4">基本信息</h4>
          <div class="grid grid-cols-2 gap-4">
            <div class="info-item">
              <span class="info-label">交易ID</span>
              <span class="info-value font-mono">{{ selectedTransaction.transaction_id }}</span>
            </div>
            <div class="info-item">
              <span class="info-label">产品名称</span>
              <span class="info-value">{{ selectedTransaction.product_name || '未知产品' }}</span>
            </div>
            <div class="info-item">
              <span class="info-label">消费金额</span>
              <span class="info-value text-red-600 font-semibold">¥{{ formatPrice(selectedTransaction.amount) }}</span>
            </div>
            <div class="info-item" v-if="!singleUserMode">
              <span class="info-label">企业名称</span>
              <span class="info-value">{{ selectedTransaction.company_name || '未知企业' }}</span>
            </div>
          </div>
        </div>

        <!-- 时间信息 -->
        <div class="info-section">
          <h4 class="text-lg font-semibold text-gray-900 mb-4">时间信息</h4>
          <div class="grid grid-cols-2 gap-4">
            <div class="info-item">
              <span class="info-label">消费时间</span>
              <span class="info-value">{{ formatDateTime(selectedTransaction.created_at) }}</span>
            </div>
            <div class="info-item">
              <span class="info-label">更新时间</span>
              <span class="info-value">{{ formatDateTime(selectedTransaction.updated_at) }}</span>
            </div>
          </div>
        </div>
      </div>
    </el-dialog>
  </ListPageLayout>
</template>

<script setup>
import { userApi, walletTransactionApi } from '@/api'
import FilterItem from '@/components/common/FilterItem.vue'
import FilterSection from '@/components/common/FilterSection.vue'
import ListPageLayout from '@/components/common/ListPageLayout.vue'
import { Back, Close, User } from '@element-plus/icons-vue'
import { ElMessage } from 'element-plus'
import { onMounted, reactive, ref, watch } from 'vue'
import { useRoute, useRouter } from 'vue-router'

const router = useRouter()
const route = useRoute()

// 响应式数据
const loading = ref(false)
const transactions = ref([])
const total = ref(0)
const currentPage = ref(1)
const pageSize = ref(10)
const detailDialogVisible = ref(false)
const selectedTransaction = ref(null)
const dateRange = ref([])

// 单用户模式
const singleUserMode = ref(false)
const currentUser = ref(null)

// 筛选条件
const filters = reactive({
  company_name: '',
  product_name: '',
  transaction_id: '',
  min_amount: '',
  max_amount: '',
  start_time: '',
  end_time: ''
})

// 初始化
onMounted(async () => {
  await checkSingleUserMode()
  await loadTransactions()
})

// 检查单用户模式
const checkSingleUserMode = async () => {
  const userId = route.query.user_id
  if (userId) {
    singleUserMode.value = true
    await loadUserInfo(userId)
  }
}

// 加载用户信息
const loadUserInfo = async (userId) => {
  try {
    const response = await userApi.getUserDetail(userId)
    currentUser.value = response.data
  } catch (error) {
    console.error('加载用户信息失败:', error)
    ElMessage.error('加载用户信息失败')
  }
}

// 加载消费记录
const loadTransactions = async () => {
  loading.value = true
  try {
    const params = {
      page: currentPage.value,
      page_size: pageSize.value,
      ...filters
    }

    // 单用户模式添加用户ID筛选
    if (singleUserMode.value && currentUser.value?.id) {
      params.user_id = currentUser.value.id
    }

    const response = await walletTransactionApi.getAdminWalletTransactions(params)
    transactions.value = response.data?.items || []
    total.value = response.data?.total || 0
  } catch (error) {
    console.error('加载消费记录失败:', error)
    ElMessage.error('加载消费记录失败')
  } finally {
    loading.value = false
  }
}

// 格式化价格
const formatPrice = (price) => {
  if (!price) return '0.00'
  return Number(price).toFixed(2)
}

// 格式化日期
const formatDate = (date) => {
  if (!date) return '-'
  return new Date(date).toLocaleDateString('zh-CN')
}

// 格式化时间
const formatTime = (date) => {
  if (!date) return '-'
  return new Date(date).toLocaleTimeString('zh-CN', {
    hour: '2-digit',
    minute: '2-digit'
  })
}

// 格式化日期时间
const formatDateTime = (date) => {
  if (!date) return '-'
  return new Date(date).toLocaleString('zh-CN')
}

// 处理筛选变化
const handleFilterChange = () => {
  currentPage.value = 1
  loadTransactions()
}

// 处理时间范围变化
const handleTimeRangeChange = (range) => {
  if (range && range.length === 2) {
    filters.start_time = range[0]
    filters.end_time = range[1]
  } else {
    filters.start_time = ''
    filters.end_time = ''
  }
  currentPage.value = 1
  loadTransactions()
}

// 重置筛选
const resetFilters = () => {
  Object.keys(filters).forEach(key => {
    filters[key] = ''
  })
  dateRange.value = []
  currentPage.value = 1
  loadTransactions()
}

// 处理分页大小变化
const handleSizeChange = (size) => {
  pageSize.value = size
  currentPage.value = 1
  loadTransactions()
}

// 处理当前页变化
const handleCurrentChange = (page) => {
  currentPage.value = page
  loadTransactions()
}

// 退出单用户模式
const exitSingleUserMode = () => {
  singleUserMode.value = false
  currentUser.value = null
  router.replace({ name: 'AdminConsumption' })
  loadTransactions()
}

// 返回用户管理
const goBackToUsers = () => {
  router.push({ name: 'AdminUsers' })
}

// 查看详情
const handleViewDetail = (transaction) => {
  selectedTransaction.value = transaction
  detailDialogVisible.value = true
}

// 监听路由变化
watch(() => route.query.user_id, async (newUserId) => {
  if (newUserId) {
    singleUserMode.value = true
    await loadUserInfo(newUserId)
  } else {
    singleUserMode.value = false
    currentUser.value = null
  }
  await loadTransactions()
})
</script>

<style scoped>
.info-section {
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 1rem;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.info-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
  min-width: 100px;
}

.info-value {
  font-size: 0.875rem;
  color: #111827;
  flex: 1;
}

.transaction-detail-dialog :deep(.el-dialog) {
  border-radius: 16px;
  overflow: hidden;
}

.transaction-detail-dialog :deep(.el-dialog__header) {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  padding: 20px 24px;
}

.transaction-detail-dialog :deep(.el-dialog__title) {
  font-size: 18px;
  font-weight: 600;
  color: #1e293b;
}

.transaction-detail-dialog :deep(.el-dialog__body) {
  padding: 24px;
  max-height: 70vh;
  overflow-y: auto;
}

/* 表格样式优化 */
:deep(.el-table) {
  border-radius: 8px;
  overflow: hidden;
}

:deep(.el-table th) {
  background: #f8fafc !important;
  border-bottom: 1px solid #e2e8f0;
}

:deep(.el-table td) {
  border-bottom: 1px solid #f1f5f9;
}

:deep(.el-table tr:hover > td) {
  background: #f8fafc !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .info-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .info-label {
    min-width: auto;
  }
}
</style>
