<!-- 文章管理 -->
<template>
  <div class="p-2">
    <transition :enter-active-class="proxy?.animate.searchAnimate.enter"
      :leave-active-class="proxy?.animate.searchAnimate.leave">
      <div v-show="showSearch" class="mb-[10px]" id="search_div">
        <el-card shadow="hover">
          <el-form ref="queryFormRef" :model="queryParams" :inline="true">
            <el-form-item label="标题" prop="title">
              <el-input v-model="queryParams.title" class="inputWidth" placeholder="请输入标题" clearable
                @keyup.enter="handleQuery" />
            </el-form-item>
            <el-form-item label="发布状态" prop="status">
              <el-select v-model="queryParams.status" placeholder="请选择发布状态" clearable class="inputWidth">
                <el-option label="未发布" value="0"></el-option>
                <el-option label="审核中" value="1"></el-option>
                <el-option label="已发布" value="2"></el-option>
              </el-select>
            </el-form-item>
            <!-- <el-form-item label="标签" prop="tagId">
              <el-select class="inputWidth" filterable v-model="queryParams.tagId" placeholder="请选择标签" clearable>
                <el-option v-for="dict in sys_user_tagOptions" :key="dict.id" :label="dict.title" :value="dict.id" />
              </el-select>
            </el-form-item> -->
            <el-form-item>
              <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
              <el-button icon="Refresh" @click="resetQuery">重置</el-button>
              <el-button type="primary" plain icon="Plus" @click="handleAdd"
                v-hasPermi="['manage:article:add']">新增</el-button>
              <el-button type="success" plain icon="Edit" :disabled="single" @click="handleUpdate()"
                v-hasPermi="['manage:article:edit']">修改</el-button>
              <el-button type="danger" plain icon="Delete" :disabled="multiple" @click="handleDelete()"
                v-hasPermi="['manage:article:remove']">删除</el-button>
            </el-form-item>
          </el-form>
        </el-card>
      </div>
    </transition>

    <el-table v-loading="loading" :height="autoTableHeight" border :data="articleList"
      @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="ID" align="center" prop="id" v-if="true" width="180px" />
      <el-table-column label="标题" align="center" prop="title" width="300px" />
      <el-table-column label="内容" align="center" prop="content" width="80px">
        <template #default="scope">
          <el-button link type="primary" @click="handleDetail(scope.row)">查看</el-button>
        </template>
      </el-table-column>
      <el-table-column label="标签" align="center" prop="tagId" width="180px">
        <template #default="scope">
          <span>{{ formatTag(scope.row.tagId) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="喜欢数" align="center" prop="agreeCount" width="80px" />
      <el-table-column label="评论数" align="center" prop="commentCount" width="80px" />
      <el-table-column label="状态" align="center" prop="status" width="90px">
        <template #default="scope">
          <el-tag v-if="scope.row.status === 0" type="info">未发布</el-tag>
          <el-tag v-if="scope.row.status === 1" type="success">审核中</el-tag>
          <el-tag v-if="scope.row.status === 2" type="success">已发布</el-tag>
        </template>
      </el-table-column>
      <el-table-column label="更新时间" align="center" prop="updateTime" width="120">
        <template #default="scope">
          <span>{{ parseTime(scope.row.updateTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width" width="160px">
        <template #default="scope">
          <el-button link type="primary" v-if="scope.row.status === 0" @click="updateRow(scope.row,'2')"
            v-hasPermi="['manage:article:edit']">发布</el-button>
          <el-button link type="primary" v-if="scope.row.status === 2" @click="updateRow(scope.row,'0')"
            v-hasPermi="['manage:article:edit']">撤销发布</el-button>
          <el-tooltip content="修改" placement="top" v-if="scope.row.status === 0">
            <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)"
              v-hasPermi="['manage:article:edit']"></el-button>
          </el-tooltip>
          <el-tooltip content="删除" placement="top" v-if="scope.row.status === 0">
            <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)"
              v-hasPermi="['manage:article:remove']"></el-button>
          </el-tooltip>
        </template>
      </el-table-column>
    </el-table>

    <pagination id="table_page" v-show="total > 0" :total="total" v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize" @pagination="getList" />
    <!-- 添加或修改文章对话框 -->
    <el-dialog :title="dialog.title" v-model="dialog.visible" width="700px" append-to-body>
      <el-form ref="articleFormRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="文章标题" prop="title">
          <el-input v-model="form.title" placeholder="请输入文章标题" />
        </el-form-item>
        <el-form-item label="标签" prop="tagId_copy">
          <el-select class="inputWidth" v-model="form.tagId_copy" multiple filterable placeholder="请选择标签" clearable>
            <el-option v-for="dict in sys_user_tagOptions" :key="dict.id" :label="dict.title"
              :value="String(dict.id)" />
          </el-select>
        </el-form-item>
        <el-form-item label="内容" prop="content">
          <editor v-model="form.content" :min-height="150" />
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button :loading="buttonLoading" type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
    <!-- 查看文章内容 -->
    <el-dialog title="文章详情" v-model="articleVisible" width="500px" append-to-body center>
      <div>
        <div style="font-size: 18px;font-weight: bold;">{{ articleTitle }}</div>
        <div v-html="articleContent" class="ql-editor"
          style="height: 500px; overflow-y: auto;font-size: 16px;padding: 0px;padding-top: 15px;text-align: justify;">
        </div>
      </div>
      <template #footer>
        <div class="dialog-footer">
          <el-button @click="cancel">关 闭</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Article" lang="ts">
import { listTag } from '@/api/manage/tag';
import { listArticle, getArticle, delArticle, addArticle, updateArticle } from '@/api/manage/article';
import { ArticleVO, ArticleQuery, ArticleForm } from '@/api/manage/article/types';

const { proxy } = getCurrentInstance() as ComponentInternalInstance;
const sys_user_tagOptions = ref([]); //标签库
const autoTableHeight = ref<number>(750);
const articleList = ref<ArticleVO[]>([]);
const buttonLoading = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref<Array<string | number>>([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const articleVisible = ref(false); //文章弹层
const articleTitle = ref(''); //文章标题
const articleContent = ref(''); //文章内容
const queryFormRef = ref<ElFormInstance>();
const articleFormRef = ref<ElFormInstance>();

const dialog = reactive<DialogOption>({
  visible: false,
  title: ''
});

const initFormData: ArticleForm = {
  id: undefined,
  tagId_copy: [],
  title: undefined,
  content: undefined,
  userId: undefined,
  tagId: undefined,
  agreeCount: undefined,
  commentCount: undefined,
  status: 0,
}
const data = reactive<PageData<ArticleForm, ArticleQuery>>({
  form: {...initFormData},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    title: undefined,
    content: undefined,
    userId: undefined,
    tagId: undefined,
    agreeCount: undefined,
    commentCount: undefined,
    status: undefined,
    params: {
    }
  },
  rules: {
    title: [
      { required: true, message: "标题不能为空", trigger: "blur" }
    ],
    content: [
      { required: true, message: "内容不能为空", trigger: "blur" }
    ],
    tagId_copy: [
      { required: true, message: "标签不能为空", trigger: "blur" }
    ],
  }
});

const { queryParams, form, rules } = toRefs(data);

/** 查询文章列表 */
const getList = async () => {
  loading.value = true;
  const res = await listArticle(queryParams.value);
  articleList.value = res.rows;
  total.value = res.total;
  loading.value = false;
}

/** 取消按钮 */
const cancel = () => {
  reset();
  dialog.visible = false;
  articleVisible.value = false;
}
// 获取标签库
const getTag = async () => {
  const res = await listTag({ pageNum: 1, pageSize: 1000 });
  sys_user_tagOptions.value = res.rows; //标签库
};
/**
 * 标签格式化
 */
const formatTag = (tagId: string | null) => {
  let tagString = '';
  for (let i = 0; i < sys_user_tagOptions.value.length; i++) {
    const element = sys_user_tagOptions.value[i];
    if (tagId!=null) {
      let filteredArray = tagId.split(',').filter((item) => item==element.id);
      if (filteredArray.length>0) {
        tagString += '，' + element.title;
      }
    }
  }
  return tagString.substring(1);
};
/** 表单重置 */
const reset = () => {
  form.value = {...initFormData};
  articleFormRef.value?.resetFields();
}

/** 搜索按钮操作 */
const handleQuery = () => {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
const resetQuery = () => {
  queryFormRef.value?.resetFields();
  handleQuery();
}

/** 多选框选中数据 */
const handleSelectionChange = (selection: ArticleVO[]) => {
  for (let i = 0; i < selection.length; i++) {
    const element = selection[i];
    if (element.status==2) {
      proxy.$modal.msgError('已发布的数据不能修改或删除');
      return
    }
  }
  ids.value = selection.map(item => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
const handleAdd = () => {
  reset();
  dialog.visible = true;
  dialog.title = "添加文章";
}

/** 修改按钮操作 */
const handleUpdate = async (row?:any) => {
  reset();
  const _id = row?.id || ids.value[0]
  const res = await getArticle(_id);
  res.data.tagId_copy = res.data.tagId?.split(',');
  Object.assign(form.value, res.data);
  dialog.visible = true;
  dialog.title = "修改文章";
}
/**
 *
 * @param row 发布，撤销发布
 * @param type
 */
const updateRow = async (row: any, type: string) => {
  await proxy?.$modal.confirm('是否确认' + (type == '0' ? '撤销发布' : '发布') + '名称为"' + row.title + '"的数据项？');
  row.status = type;
  buttonLoading.value = true;
  await updateArticle(row).finally(() => (buttonLoading.value = false));
  proxy?.$modal.msgSuccess('操作成功');
  getList();
};
const handleDetail = (row: any) => {
  articleTitle.value= row.title;
  articleContent.value = row.content;
  articleVisible.value = true;
}
/** 提交按钮 */
const submitForm = () => {
  articleFormRef.value?.validate(async (valid: boolean) => {
    if (valid) {
      buttonLoading.value = true;
      form.value.tagId = form.value.tagId_copy?.join(',');
      if (form.value.id) {
        await updateArticle(form.value).finally(() =>  buttonLoading.value = false);
      } else {
        await addArticle(form.value).finally(() =>  buttonLoading.value = false);
      }
      proxy?.$modal.msgSuccess("操作成功");
      dialog.visible = false;
      await getList();
    }
  });
}

/** 删除按钮操作 */
const handleDelete = async (row?: ArticleVO) => {
  const _ids = row?.id || ids.value;
  await proxy?.$modal.confirm('是否确认删除文章编号为"' + _ids + '"的数据项？').finally(() => loading.value = false);
  await delArticle(_ids);
  proxy?.$modal.msgSuccess("删除成功");
  await getList();
}

/** 导出按钮操作 */
const handleExport = () => {
  proxy?.download('manage/article/export', {
    ...queryParams.value
  }, `article_${new Date().getTime()}.xlsx`)
}

onMounted(() => {
  getTag();
  getList();
  nextTick(() => {
    autoTableHeight.value = proxy?.autoTableHeight();
  });
  window.onresize = () => {
    autoTableHeight.value = proxy?.autoTableHeight();
  };
});
</script>
<style lang="scss" scoped>
.el-card :deep(.el-card__body) {
  padding-bottom: 0px !important;
}

#table_page {
  height: 50px !important;
  margin-top: 10px !important;
  padding-bottom: 10px !important;
}
</style>