<template>
  <div>
    <el-dialog
      :title="'人员选择' + (type == 'multiple' ? '(多选)' : '(单选)')"
      :visible.sync="open"
      :width="width || '900px'"
      :height="height || '650px'"
      :before-close="handleClose"
      append-to-body
    >

      <div class="selectBox">
        <div class="bottomBox" v-show="showSearch">
          <el-form :model="queryParams" ref="queryForm" size="small" :inline="true"  label-width="68px">
            <el-row>
              <el-col :span="8">
                <el-form-item label="用户姓名" prop="nickName">
                  <el-input
                    v-model="queryParams.nickName"
                    placeholder="请输入用户姓名"
                    clearable
                    style="width: 200px"
                    size="mini"
                    @keyup.enter.native="getList"
                  />
                </el-form-item>
              </el-col>
              <el-col :span="8">
                <el-form-item label="手机号码" prop="phonenumber">
                  <el-input
                    v-model="queryParams.phonenumber"
                    placeholder="请输入手机号码"
                    clearable
                    style="width: 200px"
                    size="mini"
                    @keyup.enter.native="getList"
                  />
                </el-form-item>
              </el-col>
              <el-col :span="8">
                <el-form-item>
                  <el-button type="primary" icon="el-icon-search" size="mini" @click="getList">搜索</el-button>
                  <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
                </el-form-item>
              </el-col>
            </el-row>



          </el-form>
        </div>
        <div class="topBox">
          <div class="leftBox">
            <div class="contentBox">
              <div class="leftBox_title">组织架构</div>
              <div style="padding: 4px;margin-bottom: 4px;">
                <el-input
                  v-model="deptName"
                  placeholder="请输入部门名称"
                  clearable
                  size="mini"
                  prefix-icon="el-icon-search"
                >
                </el-input>
              </div>
              <div class="treeBox">
                <el-tree
                  :data="deptOptions"
                  :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>
            </div>
          </div>

          <div class="leftBox">
            <div class="contentBox">
              <div class="leftBox_title">
                人员选择
                <!-- <el-checkbox class="leftBox_title_do" style="right: 60px" v-model="userNodeAll" @change="handleCheckedNodeAll($event)">全选</el-checkbox>
                <el-checkbox class="leftBox_title_do" v-model="cancelUserNodeAll" @change="handleCheckedNodeAll($event)">全不选</el-checkbox> -->
                <el-button v-if="type == 'multiple'" class="leftBox_title_do" style="right: 70px" type="text" size="mini" @click="handleCheckedNodeAll(true)">全选</el-button>
                <el-button v-if="type == 'multiple'" class="leftBox_title_do" type="text" size="mini" @click="handleCheckedNodeAll(false)">全不选</el-button>
              </div>

              <div class="peopleBox">
                <div class="peopleList">
                  <el-checkbox-group ref="peopleCheckBoxes" v-model="checkedUsers" @change="handleCheckedUsersChange" :max="type == 'single' ? 1 : 2147483647">
                    <el-checkbox
                      v-for="item in userList"
                      :label="item.userName"
                      :key="item.userName"
                      class="peopleCard"
                    >
                      <div class="avatarBox">
                        <!-- <img v-if="item.avatar && item.avatar != ''" :src="item.avatar" class="user-avatar" onerror="οnerrοr=null;if(item) item.avatar = '';"> -->
                        <div style="background: #FFA502;" class="user-avatar">{{ item.nickName.substring(0,1) || item.userName.substring(0,1) || 'User' }}</div>
                      </div>
                      <div class="peopleInfoBox">
                        <div class="peopleName">{{ item.nickName }}</div>
                        <div class="peopleDept">{{ item.dept.deptName || '' }}</div>
                      </div>
                    </el-checkbox>
                  </el-checkbox-group>

                </div>
              </div>
            </div>
          </div>
          <!-- this.checkedUsers -->
          <div class="leftBox">
            <div class="contentBox">
              <div class="leftBox_title">已选择人员
                <el-button v-if="type == 'multiple'" class="leftBox_title_do" type="text" size="mini" @click="clearAll">全部清空</el-button>
              </div>
              <div class="peopleBox">
                <div class="peopleList">
                  <div
                    v-for="item in selectedUserList"
                    class="peopleCard"
                  >
                    <div class="avatarBox">
                      <!-- <img v-if="item.avatar && item.avatar != ''" :src="item.avatar" class="user-avatar" onerror="οnerrοr=null;if(item) item.avatar = '';"> -->
                      <div style="background: #FFA502;" class="user-avatar">{{ item.nickName.substring(0,1) || item.userName.substring(0,1) || 'User' }}</div>
                    </div>
                    <div class="peopleInfoBox">
                      <div class="peopleName" style="margin-top:4px">{{ item.nickName }}</div>
                      <div class="peopleDept">{{ item.dept.deptName || '' }}</div>
                    </div>

                    <div class="peopleDeleteBtn" @click="deleteUserByUserName(item.userName)"></div>
                  </div>

                </div>
              </div>
            </div>
          </div>
        </div>

      </div>


      <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 { listUser, getUser, deptTreeSelect } from "@/api/system/user";
  import { getToken } from "@/utils/auth";


  import Treeselect from "@riophae/vue-treeselect";

  export default {
    name: "PeopleSelect",
    components: { Treeselect },
    dicts: ['sys_normal_disable', 'sys_user_sex'],
    props: {
      width: {
        type: String,
        default: "900px",
      },
      height: {
        type: String,
        default: '650px'
      },
      type: {
        type: String,
        default: "single" //single or multiple
      },
      open: {
        type: Boolean,
        default:false,
      }
    },
    computed: {

    },
    data() {
      return {

        loading: false,

        // open: false,
        activeName: 'first',
        defaultProps: {
          children: "children",
          label: "label"
        },
        // 部门树选项
        deptOptions: undefined,
        deptName: '',
        showSearch: true,

        userList: [],
        allUserList: [],
        allUserMap: new Map(),
        selectedUserList: [],

        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 2147483647,
          userName: undefined,
          phonenumber: undefined,
          status: "0",
          deptId: undefined
        },

        //已选择的用户信息
        checkedUsers: [],

        //   userNodeAll: false,
        //   cancelUserNodeAll: false,

      };
    },
    created() {
      this.getDeptTree();
      this.getAllUserList();
    },
    watch: {
      // 根据名称筛选部门树
      deptName(val) {
        this.$refs.tree.filter(val);
      }
    },
    methods: {
      handleClose(done) {
        this.$confirm('确认关闭？')
          .then(_ => {
            this.cancel();
          })
          .catch(_ => {});
      },
      handleClick(tab, event) {
        console.log(tab, event);
      },


      //获取选中的人员昵称列表
      getNickNameList(uns) {
        let result = [];

        uns.forEach(item => {
          if(this.allUserMap.has(item)) {
            result.push(this.allUserMap.get(item).nickName || '');
          }
        })

        return result;
      },

      submitForm() {
        // console.log(this.checkedUsers, this.getNickNameList(this.checkedUsers));
        this.$emit("submit", this.checkedUsers, this.getNickNameList(this.checkedUsers)); //返回username和nickname
      },
      cancel() {
        this.$emit('cancel');
      },
      // 筛选节点
      filterNode(value, data) {
        if (!value) return true;
        return data.label.indexOf(value) !== -1;
      },
      // 节点单击事件
      handleNodeClick(data) {
        this.queryParams.deptId = data.id;
        this.getList();
      },
      /** 查询部门下拉树结构 */
      getDeptTree() {
        deptTreeSelect().then(response => {
          this.deptOptions = response.data;
        });
      },

      //第一步要做的 checkedUsers 为数组如['admin','ry'] 在父组件调用此方法并传入要回显的数组可进行复选框回显操作
      getAllUserList(checkedUsers = []) {
        //查出所有的用户，用于根据不同情况筛选显示
        listUser({pageNum: 1,pageSize: 2147483647,status: "0"}).then(response => {
            this.allUserList = response.rows;

            this.allUserMap = new Map();

            this.checkedUsers = checkedUsers;

            this.allUserList.forEach(item => {
              this.allUserMap.set(item.userName, item);
            });
            this.updateCheckedUsers();
            //   console.log(this.allUserList, this.allUserMap);
            this.getList();
          }
        );
      },

      /** 查询用户列表 */
      getList() {
        listUser(this.addDateRange(this.queryParams, this.dateRange)).then(response => {
            this.userList = response.rows;
            //   console.log(this.userList);
          }
        );
      },

      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm("queryForm");
        this.queryParams.deptId = undefined;
        this.$refs.tree.setCurrentKey(null);
        this.getList();
      },

      handleCheckedUsersChange(val) {
        // console.log(this.$refs.peopleCheckBoxes.value);
        this.updateCheckedUsers();
      },

      updateCheckedUsers() {
        this.selectedUserList = [];

        this.checkedUsers.forEach(item => {
          if(this.allUserMap.has(item)) {
            let u = this.allUserMap.get(item);
            this.selectedUserList.push(u);
          }
        })
      },

      deleteUserByUserName(username) {
        for(let i = 0;i < this.checkedUsers.length;i++) {
          if(this.checkedUsers[i].indexOf(username) != -1) {
            this.checkedUsers.splice(i, 1);
            this.updateCheckedUsers();
            break;
          }
        }
      },

      handleCheckedNodeAll(val) {
        if(val) { //全选
          this.userList.forEach(item => {
            for(let i = 0;i < this.checkedUsers.length;i++) {
              if(this.checkedUsers[i] == item.userName) { //已存在，跳过
                return;
              }
            }
            //不存在，执行添加
            this.checkedUsers.push(item.userName);
          });
        } else { //全不选
          this.userList.forEach(item => {
            for(let i = 0;i < this.checkedUsers.length;i++) {
              if(this.checkedUsers[i] == item.userName) { //已存在，执行删除
                this.checkedUsers.splice(i, 1);
                return;
              }
            }
            //不存在，无需操作

          });
        }
        this.updateCheckedUsers();
      },


      clearAll() {
        this.checkedUsers = [];
        this.updateCheckedUsers();
      }

    }
  }
</script>
<style lang="scss" scoped>

  .selectBox {
    width:100%;
    min-width: 900px;
    display: flex;
    flex-direction: column;

    .topBox {
      width:100%;
      display: flex;
      margin-top:10px;
      .leftBox {
        width:280px;
        height: 400px;
        margin-right:10px;

        -webkit-box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.12), 0 0 6px 0 rgba(0, 0, 0, 0.04);
        box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.12), 0 0 6px 0 rgba(0, 0, 0, 0.04);
        display: flex;
        flex-direction: column;

        .leftBox_title {
          width:100%;
          height:40px;
          font-size: 16px;
          line-height: 40px;
          padding-left: 10px;
          background-color: #f5f5f5;
          position: relative;
          .leftBox_title_do {
            position: absolute;
            right: 16px;
            top: 8px;
          }
        }


        .contentBox {
          width:100%;

        }
      }
    }

    .bottomBox {
      margin-top:15px;
      width:100%;
      height:75px;
      // border: 1px solid #DCDFE6;
      // -webkit-box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.12), 0 0 6px 0 rgba(0, 0, 0, 0.04);
      // box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.12), 0 0 6px 0 rgba(0, 0, 0, 0.04);
      // overflow-y: auto;

      .selectPeopleList {
        width:100%;
        display: flex;
        flex-wrap: wrap;

        .selectPeopleCard {
          width:50px;
          height:56px;
          display: flex;
          flex-direction: column;
          align-items: center;
          margin: 5px 10px;
          .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            color: #fff;
            background: #FFA502;
            font-size: 14px;
            text-align: center;
            line-height: 40px;
          }

          .userInfo {
            width:100%;
            display: flex;
            flex-direction: column;
            margin-left:5px;
            margin-right:5px;

            div:nth-child(1) {
              font-size: 14px;
              white-space: nowrap;
              overflow: hidden;
              text-overflow: ellipsis;
              width:100%;
              text-align: center;
            }
          }
        }
      }
    }

  }

  .treeBox {
    width:100%;
    height: 320px;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .peopleBox {
    width:100%;
    height: 360px;
    overflow-x: hidden;
    overflow-y: auto;

    .peopleList {
      width:100%;
      height:auto;


      .peopleCard:hover {
        background-color: #fafafa;
        transition: .2s;

        .peopleName {
          color:#eb6100;
        }
      }
      .peopleCard {
        width:100%;
        height: 48px;
        border-top: solid #f5f5f5 1px;
        border-bottom: solid #f5f5f5 1px;
        padding-left: 8px;
        display: flex;
        align-items: center;
        cursor: pointer;
        transition: .2s;
        ::v-deep .el-checkbox__label {
          display: flex;
          align-items: center;
        }

        .avatarBox {
          width: 40px;
          height: 40px;

          .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            color: #fff;
            font-size: 16px;
            text-align: center;
            line-height: 40px;
            user-select: none;
          }
        }

        .peopleInfoBox {
          width: 190px;
          height:100%;
          display: flex;
          flex-direction: column;
          padding-left: 8px;

          .peopleName {
            width: 100%;
            height:20px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            font-size: 16px;
            line-height: 20px;

          }

          .peopleDept {
            width: 100%;
            height:20px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            font-size: 14px;
            line-height: 20px;
            color: #999;
          }
        }

        .peopleDeleteBtn {
          width:20px;
          height:20px;
          // border-radius: 50%;
          background: url("~@/assets/peopleSelect/delete2.png") no-repeat;
          background-size:100% 100%;
          transition: .2s;
        }

        .peopleDeleteBtn:hover {
          width:20px;
          height:20px;
          // border-radius: 50%;
          background: url("~@/assets/peopleSelect/delete1.png") no-repeat;
          background-size:100% 100%;
          transition: .2s;
        }
      }
    }
  }

</style>

