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  -
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  - Redistributions in binary form must reproduce the above copyright
  - notice, this list of conditions and the following disclaimer in the
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  - contributors may be used to endorse or promote products derived from
  - this software without specific prior written permission.
  - Author: lengleng (wangiegie@gmail.com)
  -->

<template>
  <div class="app-container calendar-list-container">
    <basic-container>
      <div class="filter-container">
        <el-button class="filter-item"
                   style="margin-left: 10px;"
                   @click="handleCreate"
                   type="primary"
                   icon="edit"
                   v-if="roleManager_btn_add">添加
        </el-button>
      </div>

      <el-table :key='tableKey'
                :data="list"
                v-loading="listLoading"
                element-loading-text="给我一点时间"
                border
                fit
                highlight-current-row
                style="width: 99%">

        <el-table-column align="center"
                         label="序号">
          <template slot-scope="scope">
            <span>{{scope.row.roleId}}</span>
          </template>
        </el-table-column>

        <el-table-column label="角色名称">
          <template slot-scope="scope">
            <span>{{scope.row.roleName}}</span>
          </template>
        </el-table-column>

        <el-table-column align="center"
                         label="角色标识">
          <template slot-scope="scope">
            <span>{{scope.row.roleCode}}</span>
          </template>
        </el-table-column>

        <el-table-column align="center"
                         label="角色描述">
          <template slot-scope="scope">
            <span>{{scope.row.roleDesc }}</span>
          </template>
        </el-table-column>

        <el-table-column align="center"
                         label="所属部门">
          <template slot-scope="scope">
            <span>{{scope.row.deptName }}</span>
          </template>
        </el-table-column>

        <el-table-column align="center"
                         label="创建时间">
          <template slot-scope="scope">
            <span>{{scope.row.createTime | parseTime('{y}-{m}-{d} {h}:{i}')}}</span>
          </template>
        </el-table-column>

        <el-table-column label="操作"
                         width="220">
          <template slot-scope="scope">
            <el-button size="mini"
                       type="success"
                       v-if="roleManager_btn_edit"
                       @click="handleUpdate(scope.row)">编辑
            </el-button>
            <el-button size="mini"
                       type="danger"
                       v-if="roleManager_btn_del"
                       @click="handleDelete(scope.row)">删除
            </el-button>
            <el-button size="mini"
                       type="info"
                       plain
                       @click="handlePermission(scope.row)"
                       v-if="roleManager_btn_perm">权限
            </el-button>
          </template>
        </el-table-column>

      </el-table>

      <div v-show="!listLoading"
           class="pagination-container">
        <el-pagination @size-change="handleSizeChange"
                       @current-change="handleCurrentChange"
                       :current-page.sync="listQuery.page"
                       :page-sizes="[10,20,30, 50]"
                       :page-size="listQuery.limit"
                       layout="total, sizes, prev, pager, next, jumper"
                       :total="total">
        </el-pagination>
      </div>
    </basic-container>
    <el-dialog :title="textMap[dialogStatus]"
               :visible.sync="dialogFormVisible">
      <el-form :model="form"
               :rules="rules"
               ref="form"
               label-width="100px">
        <el-form-item label="角色名称"
                      prop="roleName">
          <el-input v-model="form.roleName"
                    placeholder="角色名称"></el-input>
        </el-form-item>
        <el-form-item label="角色标识"
                      prop="roleCode">
          <el-input v-model="form.roleCode"
                    placeholder="角色标识"></el-input>
        </el-form-item>
        <el-form-item label="描述"
                      prop="roleDesc">
          <el-input v-model="form.roleDesc"
                    placeholder="描述"></el-input>
        </el-form-item>
        <el-form-item label="所属部门"
                      prop="roleDept">
          <el-input v-model="form.deptName"
                    placeholder="选择部门"
                    @focus="handleDept()"
                    readonly></el-input>
          <el-input type="hidden"
                    v-model="form.roleDeptId"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer"
           class="dialog-footer">
        <el-button @click="cancel('form')">取 消</el-button>
        <el-button v-if="dialogStatus=='create'"
                   type="primary"
                   @click="create('form')">确 定</el-button>
        <el-button v-else
                   type="primary"
                   @click="update('form')">修 改</el-button>
      </div>
    </el-dialog>

    <el-dialog :title="textMap[dialogStatus]"
               :visible.sync="dialogDeptVisible">
      <el-tree class="filter-tree"
               :data="treeDeptData"
               :default-checked-keys="checkedKeys"
               node-key="id"
               highlight-current
               ref="deptTree"
               @node-click="getNodeData"
               :props="defaultProps"
               :filter-node-method="filterNode"
               default-expand-all>
      </el-tree>
    </el-dialog>

    <el-dialog :title="textMap[dialogStatus]"
               :visible.sync="dialogPermissionVisible">
      <el-tree class="filter-tree"
               :data="treeData"
               :default-checked-keys="checkedKeys"
               :check-strictly="false"
               node-key="id"
               highlight-current
               :props="defaultProps"
               show-checkbox
               ref="menuTree"
               :filter-node-method="filterNode"
               default-expand-all>
      </el-tree>
      <div slot="footer"
           class="dialog-footer">
        <el-button type="primary"
                   @click="updatePermession(roleId, roleCode)">更 新</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  fetchList,
  getObj,
  addObj,
  putObj,
  delObj,
  permissionUpd,
  fetchRoleTree,
  fetchDeptTree
} from '@/api/role'
import { fetchTree } from '@/api/menu'
import { mapGetters } from 'vuex'

export default {
  name: 'table_role',
  data () {
    return {
      treeData: [],
      treeDeptData: [],
      checkedKeys: [],
      defaultProps: {
        children: 'children',
        label: 'name'
      },
      menuIds: '',
      list: null,
      total: null,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20
      },
      form: {
        roleName: undefined,
        roleCode: undefined,
        roleDesc: undefined,
        deptName: undefined,
        roleDeptId: undefined
      },
      roleId: undefined,
      roleCode: undefined,
      rules: {
        roleName: [
          {
            required: true,
            message: '角色名称',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 20,
            message: '长度在 3 到 20 个字符',
            trigger: 'blur'
          }
        ],
        roleCode: [
          {
            required: true,
            message: '角色标识',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 20,
            message: '长度在 3 到 20 个字符',
            trigger: 'blur'
          }
        ],
        roleDesc: [
          {
            required: true,
            message: '角色标识',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 20,
            message: '长度在 3 到 20 个字符',
            trigger: 'blur'
          }
        ]
      },
      statusOptions: ['0', '1'],
      rolesOptions: undefined,
      dialogFormVisible: false,
      dialogDeptVisible: false,
      dialogPermissionVisible: false,
      dialogStatus: '',
      textMap: {
        update: '编辑',
        create: '创建',
        permission: '分配权限'
      },
      tableKey: 0,
      roleManager_btn_add: false,
      roleManager_btn_edit: false,
      roleManager_btn_del: false,
      roleManager_btn_perm: false
    }
  },
  created () {
    this.getList()
    this.roleManager_btn_add = this.permissions['sys_role_add']
    this.roleManager_btn_edit = this.permissions['sys_role_edit']
    this.roleManager_btn_del = this.permissions['sys_role_del']
    this.roleManager_btn_perm = this.permissions['sys_role_perm']
  },
  computed: {
    ...mapGetters(['elements', 'permissions'])
  },
  methods: {
    getList () {
      this.listLoading = true
      fetchList(this.listQuery).then(response => {
        this.list = response.data.records
        this.total = response.data.total
        this.listLoading = false
      })
    },
    handleSizeChange (val) {
      this.listQuery.limit = val
      this.getList()
    },
    handleCurrentChange (val) {
      this.listQuery.page = val
      this.getList()
    },
    handleCreate () {
      this.resetTemp()
      this.dialogStatus = 'create'
      this.dialogFormVisible = true
    },
    handleUpdate (row) {
      getObj(row.roleId).then(response => {
        this.form = response.data
        this.form.deptName = row.deptName
        this.form.roleDeptId = row.roleDeptId
        this.dialogFormVisible = true
        this.dialogStatus = 'update'
      })
    },
    handlePermission (row) {
      fetchRoleTree(row.roleId)
        .then(response => {
          this.checkedKeys = response.data
          return fetchTree()
        })
        .then(response => {
          this.treeData = response.data
          // 解析出所有的太监节点
          this.checkedKeys = this.resolveAllEunuchNodeId(this.treeData, this.checkedKeys, [])
          this.dialogStatus = 'permission'
          this.dialogPermissionVisible = true
          this.roleId = row.roleId
          this.roleCode = row.roleCode
        })
    },
    /**
     * 解析出所有的太监节点id
     * @param json 待解析的json串
     * @param idArr 原始节点数组
     * @param temp 临时存放节点id的数组
     * @return 太监节点id数组
     */
    resolveAllEunuchNodeId (json, idArr, temp) {
      for (let i = 0; i < json.length; i++) {
        const item = json[i]
        // 存在子节点，递归遍历;不存在子节点，将json的id添加到临时数组中
        if (item.children && item.children.length !== 0) {
          this.resolveAllEunuchNodeId(item.children, idArr, temp)
        } else {
          temp.push(idArr.filter(id => id === item.id))
        }
      }
      return temp
    },
    handleDept () {
      fetchDeptTree().then(response => {
        this.treeDeptData = response.data
        this.dialogDeptVisible = true
      })
    },
    filterNode (value, data) {
      if (!value) return true
      return data.label.indexOf(value) !== -1
    },
    getNodeData (data) {
      this.dialogDeptVisible = false
      this.form.roleDeptId = data.id
      this.form.deptName = data.name
    },
    handleDelete (row) {
      delObj(row.roleId).then(response => {
        this.dialogFormVisible = false
        this.getList()
        this.$notify({
          title: '成功',
          message: '删除成功',
          type: 'success',
          duration: 2000
        })
      })
    },
    create (formName) {
      const set = this.$refs
      set[formName].validate(valid => {
        if (valid) {
          addObj(this.form).then(() => {
            this.dialogFormVisible = false
            this.getList()
            this.$notify({
              title: '成功',
              message: '创建成功',
              type: 'success',
              duration: 2000
            })
          })
        } else {
          return false
        }
      })
    },
    cancel (formName) {
      this.dialogFormVisible = false
      this.$refs[formName].resetFields()
    },
    update (formName) {
      const set = this.$refs
      set[formName].validate(valid => {
        if (valid) {
          this.dialogFormVisible = false
          putObj(this.form).then(() => {
            this.dialogFormVisible = false
            this.getList()
            this.$notify({
              title: '成功',
              message: '修改成功',
              type: 'success',
              duration: 2000
            })
          })
        } else {
          return false
        }
      })
    },
    updatePermession (roleId, roleCode) {
      this.menuIds = ''
      this.menuIds = this.$refs.menuTree.getCheckedKeys().join(',').concat(',').concat(this.$refs.menuTree.getHalfCheckedKeys().join(','))
      permissionUpd(roleId, this.menuIds).then(() => {
        this.dialogPermissionVisible = false
        fetchTree()
          .then(response => {
            this.treeData = response.data
            return fetchRoleTree(roleId)
          })
          .then(response => {
            this.checkedKeys = response.data
            this.$notify({
              title: '成功',
              message: '修改成功',
              type: 'success',
              duration: 2000
            })
          })
      })
    },
    resetTemp () {
      this.form = {
        id: undefined,
        roleName: undefined,
        roleCode: undefined,
        roleDesc: undefined
      }
    }
  }
}
</script>
