<template>
  <div class="app-container">
    <el-row :gutter="20">
      <!--栏目数据-->
      <el-col :span="4" :xs="24">
        <div class="head-container">
          <el-input
              v-model="columnName"
              placeholder="请输入栏目名称"
              clearable
              size="small"
              prefix-icon="el-icon-search"
              style="margin-bottom: 20px"
          />
        </div>
        <div class="head-container">
          <el-tree
              :data="columnOptions"
              :props="defaultProps"
              :expand-on-click-node="false"
              :filter-node-method="filterNode"
              ref="tree"
              node-key="id"
              default-expand-all
              highlight-current
              @node-click="handleNodeClick"
          />
        </div>
      </el-col>
      <!--文章数据-->
      <el-col :span="20" :xs="24">
        <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch"
                 label-width="68px">
          <el-form-item label="标题" prop="journalismName">
            <el-input
                v-model="queryParams.journalismName"
                placeholder="请输入标题"
                clearable
                @keyup.enter.native="handleQuery"
            />
          </el-form-item>
          <el-form-item>
            <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
            <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
          </el-form-item>
        </el-form>

        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button
                type="primary"
                plain
                icon="el-icon-plus"
                size="mini"
                @click="handleAdd"
                v-hasPermi="['system:article:add']"
            >新增
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
                type="success"
                plain
                icon="el-icon-edit"
                size="mini"
                :disabled="single"
                @click="handleUpdate"
                v-hasPermi="['system:article:edit']"
            >修改
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
                type="danger"
                plain
                icon="el-icon-delete"
                size="mini"
                :disabled="multiple"
                @click="handleDelete"
                v-hasPermi="['system:article:remove']"
            >删除
            </el-button>
          </el-col>
          <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
        </el-row>

        <el-table v-loading="loading" :data="articleList" @selection-change="handleSelectionChange">
          <el-table-column type="selection" width="55" align="center"/>
          <el-table-column label="标题" align="center" prop="journalismName"/>
          <el-table-column label="排序" align="center" prop="sort"/>
          <el-table-column label="栏目" align="center" prop="columnName"/>
          <el-table-column label="作者" align="center" prop="author"/>
          <el-table-column align="center" label="发布时间" prop="releaseTime" width="180">
            <template slot-scope="scope">
              <span>{{ parseTime(scope.row.releaseTime, '{y}-{m}-{d}') }}</span>
            </template>
          </el-table-column>
          <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
            <template slot-scope="scope">
              <el-button
                  size="mini"
                  type="text"
                  icon="el-icon-edit"
                  @click="handleUpdate(scope.row)"
                  v-hasPermi="['system:article:edit']"
              >修改
              </el-button>
              <el-button
                  size="mini"
                  type="text"
                  icon="el-icon-delete"
                  @click="handleDelete(scope.row)"
                  v-hasPermi="['system:article:remove']"
              >删除
              </el-button>
            </template>
          </el-table-column>
        </el-table>

        <pagination
            v-show="total>0"
            :total="total"
            :page.sync="queryParams.pageNum"
            :limit.sync="queryParams.pageSize"
            @pagination="getList"
        />
      </el-col>
    </el-row>

    <!-- 添加或修改文章管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="1000px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="标题" prop="journalismName">
          <el-input v-model="form.journalismName" placeholder="请输入标题" maxlength="30" show-word-limit/>
        </el-form-item>
        <el-form-item label="简介" prop="intro">
          <el-input v-model="form.intro" placeholder="请输入简介" maxlength="30" show-word-limit/>
        </el-form-item>
        <el-row>
          <el-col :span="12">
            <el-form-item label="发布时间" prop="releaseTime">
              <el-date-picker
                  v-model="form.releaseTime"
                  type="date"
                  placeholder="请选择发布时间">
              </el-date-picker>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="作者" prop="author">
              <el-input v-model="form.author" placeholder="请输入作者" maxlength="10" show-word-limit/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="排序" prop="sort">
              <el-input-number :min="1" v-model="value" placeholder="请输入排序"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="栏目" prop="columnId">
              <treeselect
                  v-model="form.columnId"
                  :options="menuOptions"
                  :normalizer="normalizer"
                  :show-count="true"
                  :disable-branch-nodes="true"
                  placeholder="选择栏目"
              />
            </el-form-item>
          </el-col>
        </el-row>
        <el-form-item label="图片" prop="img">
          <file-upload v-model="form.img" :limit="1" :file-type="['png','jpg','jpeg']" :file-size="10"/>
        </el-form-item>
        <el-form-item label="内容" prop="journalismContent">
          <editor style="height: 300px" label="富文本控件" v-model="form.journalismContent" maxlength="4000" show-word-limit/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {getArticle, listArticle, addArticle, updateArticle, delArticle} from "@/api/system/article";
import {columnAllList, treeselect} from "@/api/system/column";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

export default {
  name: "Article",
  components: {Treeselect},
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 文章管理表格数据
      articleList: [],
      // 栏目数据
      columnList: [],
      // 栏目存储数据
      tickets: [],
      //树
      menuOptions: [],
      // 栏目名称
      columnName: undefined,
      // 栏目树选项
      columnOptions: undefined,
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        journalismName: null,
        journalismContent: null,
        columnId: null,
        author: null,
        releaseTime: null
      },
      value: 999,
      // 表单参数
      form: {
        columnId: null
      },
      defaultProps: {
        children: "children",
        label: "label"
      },
      // 表单校验
      rules: {
        journalismName: [
          {
            required: true, message: "标题不能为空", trigger: "blur"
          }
        ],
        columnId: [
          {
            required: true, message: "栏目不能为空", trigger: "blur"
          }
        ],
        author: [
          {
            required: true, message: "作者不能为空", trigger: "blur"
          }
        ],
        releaseTime: [
          {
            required: true, message: "发布时间不能为空", trigger: "blur"
          }
        ],
        columnName: [
          {
            required: true, message: "栏目名称不能为空", trigger: "blur"
          }
        ],
      }
    };
  },
  watch: {
    // 根据名称筛选部门树
    columnName(val) {
      this.$refs.tree.filter(val);
    }
  },
  created() {
    this.getList();
    // this.getColumnList();
    this.getColumnTree();
  },
  methods: {
    getNowTime() {
      var now = new Date()
      var year = now.getFullYear() // 得到年份
      var month = now.getMonth() // 得到月份
      var date = now.getDate() // 得到日期
      month = month + 1
      month = month.toString().padStart(2, '0')
      date = date.toString().padStart(2, '0')
      var defaultDate = `${year}-${month}-${date}`
      this.$set(this.form, 'releaseTime', defaultDate)
    },
    /** 查询文章管理列表 */
    getList() {
      this.loading = true;
      listArticle(this.queryParams).then(response => {
        this.articleList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    /** 转换菜单数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.columnId,
        label: node.columnName,
        children: node.children
      };
    },
    /** 查询栏目下拉树结构 */
    getTreeselect() {
      columnAllList().then(response => {
        this.menuOptions = [];
        const menu = {columnId: 0, columnName: '主类目',  children: []};
        menu.children = this.handleTree(response.data, "columnId");
        this.menuOptions.push(menu);
      });
    },
    /** 查询左侧下拉树结构 */
    getColumnTree() {
      treeselect().then(response => {
        this.columnOptions = response.data;
      });
    },
    // 筛选节点
    filterNode(value, data) {
      console.log("文章value",value)
      console.log("文章data",data)
      if (!value) return true;
      return data.label.indexOf(value) !== -1;
    },
    // 节点单击事件
    handleNodeClick(data) {
      this.queryParams.columnId = data.id;
      this.form.columnId = data.id;
      this.handleQuery();
    },
    /** 查询文章管理全部列表 */
    getColumnList() {
      this.loading = true;
      columnAllList().then(response => {
        this.columnList = response.data;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        journalismName: null,
        journalismContent: null,
        createTime: null,
        sort: null,
        columnId: null,
        author: null,
        releaseTime: null,
      };
      this.resetForm("form");
      this.getNowTime()
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
      // this.getColumnList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.getTreeselect();
      this.value = 999;
      this.open = true;
      this.title = "添加文章";
      this.form.columnId = this.queryParams.columnId;
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      const id = row.id || this.ids
      getArticle(id).then(response => {
        this.form = response.data;
        this.value = this.form.sort
        this.open = true;
        this.title = "修改文章";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.form.sort = this.value
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateArticle(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
              // this.getColumnList();
              this.getColumnTree();
            });
          } else {
            addArticle(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
              // this.getColumnList();
              this.getColumnTree();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除此条数据项？').then(function () {
        return delArticle(ids);
      }).then(() => {
        this.getList();
        this.getColumnTree();
        // this.getColumnList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      });
    }
  }
}
;
</script>
