import React,{ Component } from "react";
import { Input,Checkbox,Table, Divider, Tooltip,Spin } from "antd";

import CourseLayoutcomponent from '../common/CourseLayoutComponent'

import Titlesearchsection from '../common/titleSearch/TitleSearchSection'
import ColorCountText from '../common/titleSearch/ColorCountText'
import update from 'immutability-helper'

import { WordsBtn, ConditionToolTip, on, off } from 'educoder'
import axios from 'axios'

import _ from 'lodash'
// import { RouteHOC } from './common.js'

import '../css/members.css'
import { from } from "array-flatten";
// import AddTeacherModal from './modal/AddTeacherModal'
// import AddStudentModal from './modal/AddStudentModal'
import AddGraduationGroupModal from './modal/AddGraduationGroupModal'
import AddAdminModal from './modal/AddAdminModal'
import { ROLE_TEACHER_NUM, ROLE_ASSISTANT_NUM } from './common'

const Search = Input.Search;
const ROLE_ADMIN = "管理员"
const ROLE_TEACHER = "教师"
const ROLE_TEACHER_ASSISTANT = "助教"
const pageSize = 20;
function buildColumns(that) {
  const isAdmin = that.props.isAdmin()
  const isAdminOrCreator = that.props.isAdminOrCreator();
  const isAdminOrTeacher = that.props.isAdminOrTeacher()
  const { course_groups } = that.state
  const columns = [{
    title: '序号',
    // dataIndex: 'name',
    key: 'index',
    render: (content, item, index) => {
      return <a href="javascript:;">{(that.state.page - 1) * 20 + index + 1}</a>
    }
  }, {
    title: '姓名',
    dataIndex: 'name',
    width: 160,
    key: 'name',
    render: (name, record) => {
      return <a href={`/login/${record.login}`} target="_blank">{name}</a>
    }
  }, {
    title: '角色',
    dataIndex: 'role',
    key: 'role',
  }] 
  that.course_groups && that.course_groups.length && columns.push({
    title: <Tooltip title="仅能批阅指定分班的作品">管理权限</Tooltip>,
    width: 230,
    key: 'course_groups',
    dataIndex: 'course_groups',
    // onClick={() => that.joinCourseGroup(item.id)}
    // "right":"0px",
    render: (arg_course_groups, item, index) => {
      if (!arg_course_groups) {
        return ''
      }
      // ((!course_groups || course_groups.length == 0) && <p>暂未有分班信息，不能操作</p>)
      const noGroups = (!course_groups || course_groups.length == 0);
      return (
        <ConditionToolTip title={`暂未有分班信息，不能操作`} condition={noGroups}>
        <span className="drop_down" style={{color: '#29BD8B', display: 'inline-block'}}>
        { arg_course_groups.length == 0 ? '不限' : arg_course_groups.map(item => item.name).join(', ') }
        { isAdmin &&
          <React.Fragment>
            <i className="iconfont icon-xiajiantou font-12 ml2"></i>
            {!noGroups && <ul className="drop_down_menu" style={{"lef":"tunset", minWidth: '262px'}}>
              {
                course_groups && course_groups.length > 10?
                (<p className="drop_down_search">
                  <Input placeholder="搜索" value={that.state.groupSearchValue} onChange={(e) => {that.setState({groupSearchValue: e.target.value})}} allowClear/>
                </p>):
                ''
              }
              <Checkbox.Group onChange={(checkedValues) => that.joinCourseGroup(checkedValues, item, index)} 
                  value={arg_course_groups.map(item => item.id)}
                  disabled={!isAdminOrCreator}
              >
              {
                course_groups && course_groups.filter((item) => {
                  return (!that.state.groupSearchValue || item.name.indexOf(that.state.groupSearchValue) != -1)
                }).map((item,key)=>{
                  return(
                      <li key={key} value={item.id} >
                        <Checkbox value={item.id}
                          style={{ marginRight: '6px' }}
                        ></Checkbox>
                        {item.name}
                      </li>
                  )
                })
              }
              </Checkbox.Group>
            </ul>}
          </React.Fragment> }
        </span>
      </ConditionToolTip>)
      }
    ,
  });
  const hasGraduationModule = that.hasGraduationModule()
  if (hasGraduationModule) {
    columns.push({
      title: '答辩组',
      key: 'graduation_group',
      dataIndex: 'graduation_group',
      render: text => (
        <span>
          {text}
        </span>
      ),
    })
  }
  if (isAdminOrTeacher) {
    columns.push({
      title: '操作',
      key: 'action',
      render: (text, record) => {
        if (record.application_id) {
          return (
            <span>
              <WordsBtn onClick={() => that.onRefuse(record)} style={'grey'}>拒绝</WordsBtn>
              <Divider type="vertical" />
              <a onClick={() => that.onAgree(record)} style={{color: '#4CACFF'}}>同意</a> 
            </span> )
        } else {
          return (
            <span>
              {record.role != ROLE_ADMIN && <WordsBtn onClick={() => that.onDelete(record)} style={'grey'}>删除</WordsBtn>}
              {(record.role == ROLE_TEACHER || record.role == ROLE_TEACHER_ASSISTANT || isAdminOrCreator) && record.role != ROLE_ADMIN
                   && <Divider type="vertical" />}
              { record.role == ROLE_TEACHER ? <a style={{color: '#4CACFF'}} onClick={() => that.changeToAssistant(record)}>变更为助教</a> : '' }
              { record.role == ROLE_TEACHER_ASSISTANT ? <a style={{color: '#4CACFF'}} onClick={() => that.changeToTeacher(record)}>变更为教师</a> : '' }
              { record.role == ROLE_ADMIN  && isAdminOrCreator ? <a style={{color: '#4CACFF', marginLeft: '44px'}} onClick={() => that.showChangeAdminModal(record)}>更换管理员</a> : '' }
              
            </span> )
        }
        
      },
    })
  }
  if(isAdmin && hasGraduationModule) {
    columns.unshift({
    title: '',
    dataIndex: 'course_member_id',
    key: 'course_member_id',
    render: (content, item, index) => {
      return <Checkbox value={content}></Checkbox>
    }
  })
  }
  return columns
}

const ORDER_BY_NAME = 1;
const ORDER_BY_DATE = 2;
const ORDER_BY_GRADUATION_GROUP = 3;

class studentsList extends Component{
  constructor(props){
    super(props);
    this.state={
      headIndex:"1",
      page:1,
      totalPage:undefined,
      searchValue:"",
      order: ORDER_BY_DATE,
      search:"",
      groupList:undefined,
      teachers: [],
      checkBoxValues: [],
      isSpin:false,
      application_list: []
    }
  }
  inputSearch=(e)=>{
    this.setState({
      searchValue:e.target.value
    })
  }
  // approval 2 - 拒绝
  onAgree = (record, approval = 1) => {
    const courseId = this.props.match.params.coursesId    
    
    let url = `/courses/${courseId}/teacher_application_review.json`
    
    axios.post(url, {
      user_id: record.user_id,
      application_id: record.application_id,
      approval: approval
    })
    .then((response) => {
      if (response.data.status == 0) {
        this.props.showNotification(`已${approval == 1? '同意' : '拒绝'}`)
        this.fetchAll(1)
      }
    })
    .catch(function (error) {
      console.log(error);
    });
  }
  onRefuse = (record) => {
    this.onAgree(record, 2)
  }

  componentDidMount(){
    this.setState({
      isSpin:true
    })
    this.fetchAll(1);
    const isAdminOrTeacher = this.props.isAdminOrTeacher()
    const isAdmin = this.props.isAdmin()

    isAdminOrTeacher && this.getGroupList();
    this.getCourseGroups();

    on('addTeacherSuccess', this.addTeacherSuccessListener)
    isAdmin && on('updateNavSuccess', this.updateNavSuccess)

  }
  componentWillUnmount() {
    off('addTeacherSuccess', this.addTeacherSuccessListener)
    const isAdmin = this.props.isAdmin()
    isAdmin && off('updateNavSuccess', this.updateNavSuccess)
  }
  updateNavSuccess = () => {
    this.getCourseGroups()
  }
  addTeacherSuccessListener = (e, data) => {
    // const params = JSON.parse(data)
    // const coursesId = this.props.match.params.coursesId
    if (window.location.pathname.endsWith('teachers')) {
      this.fetchAll(1)
    } else {
      // this.props.history.push(`/courses/${coursesId}/teachers`)
    }
    // console.log('addTeacherSuccessListener', data)
  }
  getCourseGroups = () => {
    const courseId = this.props.match.params.coursesId    
    
    let url = `/courses/${courseId}/all_course_groups.json`
    
    axios.get(url, {
      params: { all: true }
    })
    .then((response) => {
      if (response.data.course_groups && response.data.course_groups.length) {
        let course_groups_map = {}
        response.data.course_groups.forEach(item => {
          course_groups_map[item.id] = item.name
        })
        this.setState({
          course_groups: response.data.course_groups,
          course_groups_map
        })
      } else {
      }
    })
    .catch(function (error) {
      console.log(error);
    });
  }
  joinCourseGroup = (ids, item, index) => {
    console.log('join ', ids, item)
    
    const courseId = this.props.match.params.coursesId    
    
    let url = `/courses/${courseId}/set_course_group.json`
    
    axios.post(url, {
      course_group_ids: ids,
      user_id: item.user_id,
      course_member_id: item.course_member_id
    })
    .then((response) => {
      if (response.data.status == 0) {
        this.props.showNotification('修改成功')
        const newArray = ids.map((item) => {return {id: item, name: this.state.course_groups_map[item]}});
        this.setState(
          (prevState) => ({
              teachers : update(prevState.teachers, {[ this.state.page == 1 ? index - this.state.application_list.length : index]: { course_groups: {$set: newArray }}})
          }))
        // this.fetchAll()
      } else {
      }
    })
    .catch(function (error) {
      console.log(error);
    });
  }
  fetchAll=(argPage)=>{
    this.setState({
      isSpin:true
    })
    let id = this.props.match.params.coursesId    
    if (argPage) {
      this.setState({ page: argPage })
    }
    let page = argPage || this.state.page
    let { order, searchValue }=this.state
    let url=`/courses/${id}/teachers.json?order=${order}&page=${page}`;
    if(searchValue!=""){
      url+='&search='+searchValue;
    }
    axios.get((url)).then((result)=>{
      if (result.data.teacher_list) {
        this.setState({ 
          teachers: result.data.teacher_list,
          total_count: result.data.teacher_list_size,
          application_list: result.data.application_list,
          is_admin: result.data.is_admin,
          isSpin:false
        })
      }
    }).catch((error)=>{
      console.log(error);
      this.setState({
        isSpin:false
      })
    })
  }
  getGroupList(){
    let id = this.props.match.params.coursesId    
    let url='/courses/'+id+'/graduation_group_list.json';
    axios.get((url)).then((result)=>{
      if(result.status==200){
        this.setState({
          groupList:result.data
        })
      }
    }).catch((error)=>{
      console.log(error);
    })
  }
  onAddGraduationGroupOk = () => {
    this.getGroupList()
  }

  // join_graduation_group
  joinGraduationGroup = (graduation_group_id) => {
    const courseId = this.props.match.params.coursesId    

    let url= `/courses/${courseId}/join_graduation_group.json`;
    axios.post(url, {
      course_member_list: this.state.checkBoxValues.map (item => { return { course_member_id: item } }),
      graduation_group_id: graduation_group_id
    }).then((result)=>{
      if(result.data.status==0){
        this.props.showNotification('操作成功。')
        this.fetchAll()
      }
    }).catch((error)=>{
      console.log(error);
    })
  }

  onInputSearchChange = (e) => {
    this.setState({
      searchValue: e.target.value
    })

    if (this.timeoutHandler) {
      clearTimeout(this.timeoutHandler)
    }
    this.timeoutHandler = setTimeout(() => {
      this.fetchAll(1)
    }, 1200)
  }

  onPressEnter = (e) => {
    this.fetchAll(1)
  }
  onPageChange = (page, pageSize) => {
    this.fetchAll(page)    
    this.setState({ checkAllValue: false })
  }

  onCheckBoxChange = (checkedValues) => {
    this.setState({
      checkBoxValues: checkedValues,
      checkAllValue: checkedValues.length == this.state.teachers.length
    })
  }
  onCheckAll = (e) => {
    this.setState({
      checkAllValue: e.target.checked
    })
    const values = this.state.teachers.map(item => {
      return item.course_member_id
    })
    if (e.target.checked) {
      const concated = this.state.checkBoxValues.concat(values);
      const sortedUniqed = _.uniq(concated)
      this.setState({
        checkBoxValues: sortedUniqed
      })
    } else {
      this.setState({
        checkBoxValues: _.difference(this.state.checkBoxValues, values)
      })
    }
  }
  onSortTypeChange = (order) => {
    this.setState({ order: order }, () => {
      this.fetchAll()
    })
  } 
  changeRole = (member, role) => {
    
    const courseId = this.props.match.params.coursesId    

    let url= `/courses/${courseId}/change_course_teacher.json`;
    axios.post(url, {
      course_member_id: member.course_member_id
      // "user_list": [
      //   { "user_id": member.user_id }  
      // ],
      // "graduation_group_id": member.graduation_group_id,
      // "course_group_id": "820",
      // "role": role
    }).then((result)=>{
      if(result.data.status==0){
        this.props.showNotification('操作成功。')
        this.fetchAll()
      }
    }).catch((error)=>{
      console.log(error);
    })
  }
  changeToAssistant = (member) => {
    this.changeRole(member, ROLE_ASSISTANT_NUM)
  }
  changeToTeacher = (member) => {
    this.changeRole(member, ROLE_TEACHER_NUM)
  }
  showChangeAdminModal = () => {
    this.refs.addAdminModal.setVisible(true)
  }
  changeAdminSuccess = () => {
    this.fetchAll()    
  }
  onDelete = (member) => {
    this.props.confirm({
      content: `确认要将“${member.name}”从教师列表中移除吗？`,
      onOk: () => {
        // const cid = this.props.match.params.coursesId
        const courseId = this.props.match.params.coursesId

        const url = `/courses/${courseId}/delete_course_teacher.json`
        axios.post(url, { 
            course_member_id: member.course_member_id
          })
        .then((response) => {
          if (response.data.status == 0) {
            // {"status":1,"message":"删除成功"}
            this.props.showNotification('删除成功')
            this.fetchAll()
          }
        })
        .catch(function (error) {
          console.log(error);
        });    
      }
    })
  }
  addTeacher = () => {
    this.refs.addTeacherModal.setVisible(true)    
  }
  addStudent = () => {
    this.refs.addStudentModal.setVisible(true)    
  }

  hasGraduationModule = () => {
    const { course_modules } = this.props;
    const result = course_modules && course_modules.filter( item => {
      return item.type == 'graduation'
    })
    return result && result.length > 0
  }

  render(){
    const isAdmin = this.props.isAdmin()
    const columns = buildColumns(this)
    let {
      searchValue, checkBoxValues, checkAllValue,
      groupList, total_count, teachers, order, page
    }=this.state

    let currentOrderName = '加入时间排序'
    if (order == ORDER_BY_NAME) {
      currentOrderName = '姓名排序'
    } else if (order == ORDER_BY_GRADUATION_GROUP) {
      currentOrderName = '答辩组排序'
    }
    const combineArray = teachers.slice(0)
    if (page == 1) {
      this.state.application_list && this.state.application_list.slice(0).reverse().forEach(item => {
        combineArray.unshift(item)
      })
    }
    const isAdminOrTeacher = this.props.isAdminOrTeacher()
    const hasGraduationModule = this.hasGraduationModule()
    
    return(
      <React.Fragment>
        {/* <AddTeacherModal ref="addTeacherModal" 
          {...this.props}
          moduleName="教师"
        ></AddTeacherModal>
        <AddStudentModal ref="addStudentModal" 
          {...this.props}
          moduleName="学生"
        ></AddStudentModal> */}
        {isAdminOrTeacher && <AddGraduationGroupModal ref="addGraduationGroupModal"
          {...this.props} onOk={this.onAddGraduationGroupOk}
        ></AddGraduationGroupModal>}
        <AddAdminModal ref="addAdminModal"
          {...this.props} onOk={this.showChangeAdminModal}
          changeAdminSuccess={this.changeAdminSuccess}
        ></AddAdminModal>
        
        <Titlesearchsection
          title={"教师列表"}
          searchValue={ searchValue }
          onInputSearchChange={this.onInputSearchChange}
          showSearchInput={total_count >= 10}
          searchPlaceholder={ '请输入姓名进行搜索' }
          firstRowRight={
            <React.Fragment>
              {/* { isAdmin && <WordsBtn style="blue" className="mr30" onClick={()=>this.addTeacher()}>添加教师</WordsBtn> }
              { isAdmin && <WordsBtn style="blue" className="mr30" onClick={()=>this.addStudent()}>添加学生</WordsBtn> } */}
            </React.Fragment>
          }
          secondRowLeft={
            total_count ? <ColorCountText count={total_count} name="个教师"></ColorCountText> : ''
          }
          onPressEnter={this.onPressEnter}
        ></Titlesearchsection>

        <style>{`
          .teacherList .ant-table-pagination.ant-pagination {
            float: none;
            text-align: center;
          }
        `}</style>
        <div className="mt20 edu-back-white padding20 teacherList">
          <div className="clearfix stu_head" style={{paddingLeft: '15px'}}>
            { isAdmin && hasGraduationModule && <Checkbox className="fl" onChange={this.onCheckAll} checked={checkAllValue} >已选 {checkBoxValues.length} 个</Checkbox> }
            { <div className="studentList_operation_ul">
              { hasGraduationModule && isAdminOrTeacher && <li className="li_line drop_down">
                加入答辩组<i className="iconfont icon-xiajiantou font-12 ml2"></i>
                <ul className="drop_down_menu" style={{"right":"0px","left":"unset", minWidth: '222px'}}>
                
                  {
                    groupList && groupList.graduation_groups_count>10?
                    (<p className="drop_down_search">
                      <Input placeholder="搜索" value={this.state.graduationGroupSearchValue} onChange={(e) => {this.setState({graduationGroupSearchValue: e.target.value})}} allowClear/>
                    </p>):
                    (groupList && groupList.graduation_groups_count==0 && <p style={{textAlign: 'left', margin: '0px 20px'}}>暂无数据</p>)
                  }
                  {
                    groupList && groupList.graduation_group_list && groupList.graduation_group_list.filter((item)=> {
                      return (!this.state.graduationGroupSearchValue || item.name.indexOf(this.state.graduationGroupSearchValue) != -1)
                  }).map((item,key)=>{
                      return(
                          <li key={key} value={item.id} onClick={() => this.joinGraduationGroup(item.id)}>{item.name}</li>
                      )
                    })
                  }
                  <p className="drop_down_btn">
                    <a href="javascript:void(0)" className="color-grey-6"
                        onClick={() => this.refs['addGraduationGroupModal'].setVisible(true)}
                    >添加答辩组...</a>
                  </p>
                </ul>
                </li> }
              <li className="drop_down">
                {currentOrderName} <i className="iconfont icon-xiajiantou font-12 ml2"></i>
                <ul className="drop_down_normal">
                  <li onClick={() => this.onSortTypeChange(ORDER_BY_NAME)} >姓名排序</li>
                  <li onClick={() => this.onSortTypeChange(ORDER_BY_DATE)} style={{width: '125px'}}>加入时间排序</li>
                  {this.hasGraduationModule() && <li onClick={() => this.onSortTypeChange(ORDER_BY_GRADUATION_GROUP)} >答辩组排序</li>}
                </ul>
              </li>
            </div> }
          </div>
          <Spin size="large" spinning={this.state.isSpin}>
          <div className="clearfix stu_table">
            <Checkbox.Group style={{ width: '100%' }} onChange={this.onCheckBoxChange} value={checkBoxValues}>          
            {/* pagination={{ current: page, total: total_count, pageSize:20, onChange: this.onPageChange }} */}
              <Table columns={columns} dataSource={combineArray} 
                pagination={total_count > 20 ? {  //分页
                  total: page == 1 && this.state.application_list.length ? total_count + total_count / Math.floor(this.state.application_list.length + 20) : total_count , //数据总数量
                  pageSize: page == 1 && this.state.application_list.length ? this.state.application_list.length + 20 : 20,  //显示几条一页
                  current: page,
                  onChange: this.onPageChange
                } : false}
              ></Table>
            </Checkbox.Group>
          </div>
          </Spin>
        </div>
      </React.Fragment>
    )
  }
}
export default studentsList;