<template>
    <div>
        <el-card class="box-card" shadow="always" :body-style="{ height: bodyHeight }" style="overflow-y: auto;">
            <div slot="header" class="clearfix">
              <span>{{ title }}</span>
              <el-button-group style="float: right;">
                <el-button size="mini" icon="el-icon-plus" round @click="submitForm">保存</el-button>
                <el-button size="mini" icon="el-icon-back" round @click="showCard">返回</el-button>
              </el-button-group>
            </div>
            <el-form ref="form" :model="form" :rules="rules" label-width="80px">
              <el-form-item label="角色名称" prop="roleName">
                <el-input v-model="form.roleName" placeholder="请输入角色名称" />
              </el-form-item>
              <el-form-item label="角色编码" prop="roleCode">
                <el-input v-model="form.roleCode" placeholder="请输入角色编码" />
              </el-form-item>
              <el-row :gutter="20">
                <el-col :span="12">
                  <el-form-item label="菜单权限">
                    <el-tree
                      :data="menuOptions"
                      show-checkbox
                      ref="menu"
                      node-key="id"
                      empty-text="加载中，请稍后"
                      :props="menuDefaultProps"
                    ></el-tree>
                  </el-form-item>
                </el-col>
                <el-col :span="12">
                  <el-form-item label="权限范围" prop="dataScope">
                    <el-select v-model="form.dataScope">
                      <el-option
                        v-for="item in dataScopeOptions"
                        :key="item.id"
                        :label="item.itemValue"
                        :value="item.itemText"
                      ></el-option>
                    </el-select>
                  </el-form-item>
                  <el-form-item label="数据权限" v-show="form.dataScope === '2'">
                    <el-tree
                      :data="deptOptions"
                      show-checkbox
                      default-expand-all
                      ref="dept"
                      node-key="id"
                      empty-text="加载中，请稍后"
                      :props="deptDefaultProps"
                    ></el-tree>
                  </el-form-item>
                </el-col>
              </el-row>
              <el-form-item label="状态" prop="status">
                <el-radio-group v-model="form.status">
                  <el-radio
                    v-for="dict in statusOptions"
                    :key="dict.id"
                    :label="dict.itemText"
                  >{{dict.itemValue}}</el-radio>
                </el-radio-group>
              </el-form-item>
              <el-form-item label="备注" prop="remark">
                <el-input v-model="form.remark" type="textarea" placeholder="请输入内容" />
              </el-form-item>
            </el-form>
        </el-card>
    </div>
</template>

<script>
import { addRole } from '@/api/system/role'
import { listMenu } from '@/api/system/menu'
import { listDept } from '@/api/system/dept'
import { construct } from '@/utils/json-tree'

export default {
  name: 'RoleAdd',
  props: {
    data: {
      type: Object,
      default: function() {
        return {}
      }
    }
  },
  data () {
    return {
      bodyHeight: document.body.offsetHeight - 130 + 'px',
      title: '角色新增',
      // 展示切换
      showOptions: {
        data: {},
        showList: true,
        showAdd: false,
        showEdit: false,
        showDetail: false
      },
      // 表单参数
      form: {
        status: '1',
        dataScope: '1',
        // 资源id数组
        menuList: [],
        // 数据范围为自定义时数据权限id数组
        deptList: []
      },
      // 表单校验
      rules: {
        roleName: [
          { required: true, message: "角色名称不能为空", trigger: "blur" }
        ],
        roleCode: [
          { required: true, message: "角色编码不能为空", trigger: "blur" }
        ]
      },
      // 状态数据字典
      statusOptions: [],
      // 数据范围数据字典
      dataScopeOptions: [],
      // 菜单列表
      menuOptions: [],
      // 部门列表
      deptOptions: [],
      menuDefaultProps: {
        children: "children",
        label: "menuName"
      },
      deptDefaultProps: {
        children: "children",
        label: "deptName"
      }
    }
  },
  created () {
    this.getDicts("sys_common_status").then(response => {
      if (response.success) {
        this.statusOptions = response.data
      }
    })
    this.getDicts("sys_data_scope").then(response => {
      if (response.success) {
        this.dataScopeOptions = response.data
      }
    })
    this.getMenuTree()
    this.getDeptTree()
  },
  methods: {
    showCard () {
      this.$emit('showCard', this.showOptions)
    },
    /** 查询菜单树结构 */
    getMenuTree () {
      listMenu().then(response => {
        if (response.success) {
          const { data } = response
          this.menuOptions = construct(data, {
            id: 'id',
            pid: 'parentId',
            children: 'children'
          })
        }
      })
    },
    /** 查询部门树结构 */
    getDeptTree () {
      listDept().then(response => {
        if (response.success) {
          const { data } = response
          this.deptOptions = construct(data, {
            id: 'id',
            pid: 'parentId',
            children: 'children'
          })
        }
      })
    },
    // 所有菜单节点数据
    getMenuAllCheckedKeys () {
      // 目前被选中的菜单节点
      let checkedKeys = this.$refs.menu.getHalfCheckedKeys()
      // 半选中的菜单节点
      let halfCheckedKeys = this.$refs.menu.getCheckedKeys()
      checkedKeys.unshift.apply(checkedKeys, halfCheckedKeys)
      return checkedKeys
    },
    // 所有部门节点数据
    getDeptAllCheckedKeys () {
      // 目前被选中的部门节点
      let checkedKeys = this.$refs.dept.getHalfCheckedKeys()
      // 半选中的部门节点
      let halfCheckedKeys = this.$refs.dept.getCheckedKeys()
      checkedKeys.unshift.apply(checkedKeys, halfCheckedKeys)
      return checkedKeys
    },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          this.form.menuList = this.getMenuAllCheckedKeys()
          this.form.deptList = this.getDeptAllCheckedKeys()
          addRole(this.form).then(response => {
            if (response.success) {
              this.$message.success("保存成功")
              setTimeout(() => {
                // 2秒后跳转列表页
                this.$emit('showCard', this.showOptions)
              }, 2000)
            } else {
              this.$message.error("保存失败")
            }
          })
        }
      })
    }
  }
}
</script>

<style lang="scss" scoped>

</style>
