<template>
  <div class="rating-topic-container">
    <vab-query-form>
      <vab-query-form-left-panel>
        <el-button icon="el-icon-plus" type="primary" @click="handleAdd">创建话题</el-button>
      </vab-query-form-left-panel>
      <vab-query-form-left-panel>
        <el-form :inline="true" :model="queryForm" @submit.native.prevent>
          <el-form-item>
            <el-select
              v-model="queryForm.categoryId"
              v-loadmore="loadMoreCategories"
              clearable
              filterable
              placeholder="请选择分类"
              style="width: 200px"
              @change="queryData"
            >
              <el-option v-for="item in categoryList" :key="item.id" :label="item.title" :value="item.id" />
            </el-select>
          </el-form-item>
          <el-form-item>
            <el-select v-model="queryForm.status" clearable placeholder="请选择状态" @change="queryData">
              <el-option label="审核中" :value="1" />
              <el-option label="已通过" :value="2" />
              <el-option label="已拒绝" :value="3" />
              <el-option label="禁用" :value="4" />
            </el-select>
          </el-form-item>
          <el-form-item>
            <el-input v-model.trim="queryForm.keyword" clearable placeholder="请输入评价主题" />
          </el-form-item>
          <el-form-item>
            <el-button icon="el-icon-search" type="primary" @click="queryData">查询</el-button>
          </el-form-item>
        </el-form>
      </vab-query-form-left-panel>
    </vab-query-form>

    <el-table v-loading="listLoading" :data="list" :element-loading-text="elementLoadingText">
      <el-table-column align="left" label="评价主题" min-width="200" width="200">
        <template #default="{ row }">
          <div class="topic-info-cell" style="cursor: pointer" @click="handleViewItems(row)">
            <div class="topic-details">
              <div class="topic-title">{{ row.title }}</div>
              <div v-if="row.description" class="topic-desc" :title="row.description">{{ row.description }}</div>
            </div>
          </div>
        </template>
      </el-table-column>

      <el-table-column align="center" label="状态" width="100">
        <template #default="{ row }">
          <el-tag v-if="row.status === 1" type="warning">审核中</el-tag>
          <el-tag v-else-if="row.status === 2" type="success">已审通过</el-tag>
          <el-tag v-else-if="row.status === 3" type="danger">已拒绝</el-tag>
          <el-tag v-else-if="row.status === 4" type="info">禁用</el-tag>
          <span v-else>-</span>
        </template>
      </el-table-column>

      <el-table-column align="left" label="用户信息" min-width="200" width="300">
        <template #default="{ row }">
          <user-info v-if="row.user" :user="row.user" :user-id="row.userId" />
          <span v-else>系统创建</span>
        </template>
      </el-table-column>

      <el-table-column align="left" label="互动统计" width="180">
        <template #default="{ row }">
          <div class="stat-cell">
            <div class="stat-row">
              <span class="stat-label">
                <i class="el-icon-view" />
                浏览数：
              </span>
              <span class="stat-value">{{ row.viewCount }}</span>
            </div>
            <div class="stat-row">
              <span class="stat-label">
                <i class="el-icon-user" />
                参与人数：
              </span>
              <span class="stat-value">{{ row.participantCount }}</span>
            </div>
            <div class="stat-row">
              <span class="stat-label">
                <i class="el-icon-star-on" />
                评价人数：
              </span>
              <span class="stat-value">{{ row.scoreCount }}</span>
            </div>
            <div class="stat-row">
              <span class="stat-label">
                <i class="el-icon-chat-dot-round" />
                评论人数：
              </span>
              <span class="stat-value">{{ row.commentCount }}</span>
            </div>
          </div>
        </template>
      </el-table-column>

      <el-table-column align="left" label="热门分数" prop="hotScore" width="100" />

      <el-table-column align="left" label="创建时间" prop="createdAt" width="160">
        <template #default="{ row }">
          {{ formatTime(row.createdAt) }}
        </template>
      </el-table-column>

      <el-table-column align="center" label="操作" width="150">
        <template #default="{ row }">
          <el-button type="text" @click="handleViewItems(row)">查看评分项</el-button>
          <el-button v-if="row.status !== 4" style="color: #f56c6c" type="text" @click="handleDisable(row)">禁用</el-button>
          <el-button v-if="row.status === 4" style="color: #67c23a" type="text" @click="handleEnable(row)">启用</el-button>
        </template>
      </el-table-column>
    </el-table>

    <el-pagination
      background
      :current-page="queryForm.pageNo"
      :layout="layout"
      :page-size="queryForm.pageSize"
      :total="total"
      @current-change="handleCurrentChange"
      @size-change="handleSizeChange"
    />

    <topic-edit ref="edit" @fetch-data="fetchData" />
  </div>
</template>

<script>
  import { getList } from '@/api/rating/topic'
  import { getList as getCategoryList } from '@/api/rating/topicCategory'
  import { reviewTopic } from '@/api/rating/topicOperate'
  import { formatTime } from '@/utils'
  import { getThumbUrl } from '@/utils/blessing'
  import TopicEdit from './components/TopicEdit'
  import UserInfo from '@/components/UserInfo'

  export default {
    name: 'RatingTopicIndex',
    components: { TopicEdit, UserInfo },
    directives: {
      loadmore: {
        bind(el, binding) {
          setTimeout(() => {
            const SELECTWRAP_DOM = el.querySelector('.el-select-dropdown .el-select-dropdown__wrap')
            if (SELECTWRAP_DOM) {
              SELECTWRAP_DOM.addEventListener('scroll', function () {
                const condition = this.scrollHeight - this.scrollTop <= this.clientHeight + 2
                if (condition) {
                  binding.value()
                }
              })
            }
          }, 0)
        },
      },
    },
    data() {
      return {
        list: [],
        listLoading: true,
        layout: 'total, sizes, prev, pager, next, jumper',
        total: 0,
        elementLoadingText: '正在加载...',
        queryForm: {
          pageNo: 1,
          pageSize: 10,
          keyword: '',
          status: '',
          categoryId: '',
        },
        categoryList: [],
        categoryQuery: { pageNo: 1, pageSize: 20 },
        categoryTotal: 0,
        fetchingCategories: false,
      }
    },
    created() {
      if (this.$route.query.topicId) {
        this.queryForm.keyword = this.$route.query.topicId
      }
      this.fetchCategoryList()
      this.fetchData()
    },
    methods: {
      formatTime,
      getThumbUrl,
      async fetchCategoryList() {
        if (this.fetchingCategories) return
        this.fetchingCategories = true
        try {
          const { data } = await getCategoryList(this.categoryQuery)
          this.categoryList = this.categoryList.concat(data.list || [])
          this.categoryTotal = data.totalCount || 0
        } catch (error) {
          console.error(error)
        } finally {
          this.fetchingCategories = false
        }
      },
      loadMoreCategories() {
        if (this.categoryList.length >= this.categoryTotal || this.fetchingCategories) return
        this.categoryQuery.pageNo += 1
        this.fetchCategoryList()
      },
      handleAdd() {
        this.$refs['edit'].showEdit()
      },
      handleSizeChange(val) {
        this.queryForm.pageSize = val
        this.fetchData()
      },
      handleCurrentChange(val) {
        this.queryForm.pageNo = val
        this.fetchData()
      },
      queryData() {
        this.queryForm.pageNo = 1
        this.fetchData()
      },
      async fetchData() {
        this.listLoading = true
        try {
          const params = { ...this.queryForm }
          if (!params.categoryId) delete params.categoryId
          const { data } = await getList(params)
          this.list = data.list
          this.total = data.totalCount
        } catch (error) {
          console.error(error)
        } finally {
          this.listLoading = false
        }
      },
      handleViewItems(row) {
        this.$router.push({
          path: '/rating/topic-item',
          query: { topicId: row.id },
        })
      },
      handleDisable(row) {
        this.$confirm('确定要禁用该话题吗？', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        })
          .then(async () => {
            try {
              const { msg } = await reviewTopic({
                topicId: row.id,
                userId: this.$store.state.user.userId || '',
                status: 4,
                type: 'topic',
              })
              this.$baseMessage(msg || '已禁用', 'success')
              this.fetchData()
            } catch (error) {
              console.error(error)
            }
          })
          .catch(() => {})
      },
      handleEnable(row) {
        this.$confirm('确定要启用该话题吗？', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'success',
        })
          .then(async () => {
            try {
              const { msg } = await reviewTopic({
                topicId: row.id,
                userId: this.$store.state.user.userId || '',
                status: 2,
                type: 'topic',
              })
              this.$baseMessage(msg || '已启用', 'success')
              this.fetchData()
            } catch (error) {
              console.error(error)
            }
          })
          .catch(() => {})
      },
    },
  }
</script>

<style scoped>
  .rating-topic-container {
    padding: 20px;
  }

  .topic-info-cell {
    display: flex;
    align-items: center;
  }

  .topic-cover,
  .topic-cover-placeholder {
    width: 50px;
    height: 50px;
    border-radius: 4px;
    margin-right: 12px;
    flex-shrink: 0;
  }

  .topic-cover-placeholder {
    background-color: #f0f2f5;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #909399;
    font-size: 20px;
  }

  .topic-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  .topic-title {
    font-weight: bold;
    color: #303133;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .topic-desc {
    font-size: 12px;
    color: #909399;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .stat-cell {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .stat-row {
    display: flex;
    align-items: center;
    font-size: 13px;
  }

  .stat-label {
    color: #909399;
    width: 90px;
  }

  .stat-value {
    color: #606266;
  }
</style>
