/*
 * @Author: 吴文洁
 * @Date: 2020-08-05 10:07:47
 * @LastEditors: yuananting
 * @LastEditTime: 2021-07-12 15:16:50
 * @Description: 线上课新增/编辑页
 * @Copyright: 杭州杰竞科技有限公司 版权所有
 */

import React from 'react'
import { Button, Input,  message, Modal, Cascader, Tooltip, Form, Popconfirm } from 'antd'
import { FileTypeIcon, FileVerifyMap } from '@/common/constants/academic/lessonEnum'
import ShowTips from '@/components/ShowTips'
import Breadcrumbs from '@/components/Breadcrumbs'
import moment from 'moment'
import AddVideoIntro from './components/AddVideoIntro'
import SelectStudent from '../modal/select-student'
import SelectPrepareFileModal from '../../prepare-lesson/modal/SelectPrepareFileModal'
import PreviewCourseModal from '../modal/PreviewCourseModal'
import StoreService from '@/domains/store-domain/storeService'
import CourseService from '@/domains/course-domain/CourseService'
import Service from '@/common/js/service'
import User from '@/common/js/user'
import _ from 'underscore'
import Upload from '@/core/upload'
import { randomString } from '@/domains/basic-domain/utils'
import ImgClipModal from '@/components/ImgClipModal'
import $ from 'jquery'
import './AddVideoCourse.less'
import Bus from '@/core/bus'

const { TextArea } = Input;
const EDIT_BOX_KEY = Math.random()
const fieldNames = { label: 'categoryName', value: 'id', children: 'sonCategoryList' }

//添加课程时课程默认的一些值
const defaultShelfState = 'YES'
const defaultScheduleMedia = [
  {
    contentType: 'INTRO',
    mediaType: 'TEXT',
    mediaContent: '',
    key: EDIT_BOX_KEY
  }
]
const whetherVisitorsJoin = 'NO'

let cutFlag = false
class AddVideoCourse extends React.Component {
  constructor(props) {
    super(props)

    const id = getParameterByName('id')
    const pageType = getParameterByName('type')

    this.state = {
      id, // 线上课ID,编辑的时候从URL上带过来
      pageType, // 页面类型: add->新建 edit->编辑
      imageFile: null, // 需要被截取的图片
      courseName: null, // 线上课名称
      coverId: null, // 视频封面的recourceId
      coverUrl: null, // 线上课封面
      studentList: [], // 上课学员列表
      shelfState: 'YES', //是否开启学院展示
      scheduleMedia: [
        {
          // 线上课媒体资源
          contentType: 'INTRO',
          mediaType: 'TEXT',
          mediaContent: '',
          key: EDIT_BOX_KEY
        }
      ],
      diskList: [], // 机构可见磁盘目录
      selectedFileList: [], // 已经从资料云盘中勾选的文件
      showCutModal: false, // 是否显示截图弹窗
      showSelectFileModal: false,
      studentModal: false,
      categoryName: null, //分类名称
      courseCatalogList: [], //分类列表
      categoryId: null, //分类的Id值
      whetherVisitorsJoin: 'NO', // 是否允许游客加入
      showSelectCoverModal: false,
      cutImageBlob: null,
      introduce: '',
      courseChapterList:[
      ], // 课节列表
      videoType: "MP4",
      mediaNameAlias: '', // 任一视频重命名的名称（气泡框）
      popConfirmVisible: false
    }
  }

  componentWillMount() {
    const { id, pageType } = this.state
    this.getCourseCatalogList()
    if (pageType === 'edit') {
      this.handleFetchScheudleDetail(id)
    }
    Bus.bind('editorLimit', (editorTextLength) => {
      this.setState({
        editorTextLength,
      });
    });
  }

  //获取分类列表
  getCourseCatalogList = () => {
    StoreService.getCourseCatalogList({ current: 1, size: 1000 }).then((res) => {
      this.setState({
        courseCatalogList: res.result.records
      })
    })
  }

  catalogChange = (value, _categoryName) => {
    const categoryName =_.pluck(_categoryName,'categoryName').join('-')
    const changeValueLength = value.length
    switch (changeValueLength) {
      case 1:
        this.setState({ categoryId: value[0], categoryName })
        break
      case 2:
        this.setState({ categoryId: value[1], categoryName })
        break
      default:
        this.setState({ categoryId: null })
        break
    }
  }
  // 获取线上课详情
  handleFetchScheudleDetail = (courseId) => {
    CourseService.videoScheduleDetail({
      courseId
    }).then((res) => {
      const { result = {} } = res || {}
      const { courseName, shelfState, whetherVisitorsJoin, courseMediaVOS, categoryOneName, categoryTwoName, categoryId, courseChapterVOList =[] } = result
      let coverId
      let coverUrl
      let videoDuration
      let videoName
      let scheduleMedia = []
      let scheduleVideoUrl
      let hasIntro

      courseMediaVOS.map((item) => {
        switch (item.contentType) {
          case 'COVER':
            coverId = item.mediaContent
            coverUrl = item.mediaUrl
            break
          case 'INTRO':
            hasIntro = true
            this.getTextDetail('introduce', item.mediaUrl)
            break
          default:
            break
        }
        return item
      })

      let categoryName
      if (categoryTwoName) {
        categoryName = `${categoryOneName}-${categoryTwoName}`
      } else {
        categoryName = `${categoryOneName}`
      }

      const _courseChapterVOList = courseChapterVOList.map(item => {
        item.mediaName = item.name;
        item.resourceId = item.id;
        return item
      })

      this.setState({
        loadintroduce: !hasIntro,
        coverId,
        coverUrl,
        videoName,
        videoDuration,
        scheduleMedia,
        courseName,
        scheduleVideoUrl,
        shelfState,
        whetherVisitorsJoin,
        categoryName,
        categoryId,
        courseChapterList: _courseChapterVOList
      })
    })
  }

  getTextDetail = (key, url) => {
    $.ajax({
      data: {},
      type: 'GET',
      url,
      contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
      success: (res) => {
        this.setState({ [key]: res, [`load${key}`]: true })
      }
    })
  }

  handleGoBack = () => {
    const { coverId, videoName, videoDuration, courseName, scheduleMedia, courseChapterList, categoryId, shelfState, whetherVisitorsJoin } = this.state
    if (
      videoName ||
      videoDuration ||
      !courseChapterList.length ||
      !_.isEqual(scheduleMedia, defaultScheduleMedia) ||
      categoryId ||
      courseName ||
      coverId ||
      shelfState !== defaultShelfState ||
      whetherVisitorsJoin !== whetherVisitorsJoin
    ) {
      Modal.confirm({
        title: '确认要返回吗?',
        content: '返回后，本次编辑的内容将不被保存。',
        okText: '确认返回',
        cancelText: '留在本页',
        icon: <span className='icon iconfont default-confirm-icon'>&#xe6f4;</span>,
        onOk: () => {
          window.RCHistory.push({
            pathname: `/video-course`
          })
        }
      })
    } else {
      window.RCHistory.push({
        pathname: `/video-course`
      })
    }
  }

  // 修改表单
  handleChangeForm = (field, value, coverUrl) => {
    this.setState({
      [field]: value,
      coverUrl: coverUrl ? coverUrl : this.state.coverUrl
    })
  }

  // 显示选择学员弹窗
  handleShowSelectStuModal = () => {
    this.setState({ studentModal: true })

    const { studentList, selectedStuList } = this.state
    const studentModal = (
      <SelectStudent
        showTabs={true}
        type='videoCourse'
        onSelect={this.handleSelectStudent}
        after={true} //表明是不是上课后的状态
        studentList={studentList}
        close={() => {
          this.setState({
            studentModal: null
          })
        }}
      />
    )
    this.setState({ studentModal })
  }

  handleSelectStudent = (studentIds) => {
    let studentList = []
    _.each(studentIds, (item) => {
      studentList.push({ studentId: item })
    })
    this.setState({ studentList })
    this.setState({ studentModal: false })
  }

  // 显示预览弹窗
  handleShowPreviewModal = () => {
    const { coverUrl, scheduleVideoUrl, courseName, scheduleMedia, videoDuration, introduce, courseChapterList, categoryName } = this.state

    const courseBasinInfo = {
      coverUrl,
      scheduleVideoUrl,
      courseName,
      videoDuration
    }
    const courseIntroInfo = {
      liveCourseMediaRequests: scheduleMedia,
      introduce,
      categoryName
    }

    const previewCourseModal = (
      <PreviewCourseModal
        type='videoCourse'
        courseBasicInfo={courseBasinInfo}
        courseIntroInfo={courseIntroInfo}
        close={() => {
          this.setState({
            previewCourseModal: null
          })
        }}
        courseChapterList={courseChapterList}
      />
    )

    this.setState({ previewCourseModal })
  }

  // 选择视频
  handleSelectVideo = (addFolderIds,selectedFileList) => {
    this.setState({
      showSelectFileModal: false
    })

    let { courseChapterList } = this.state;
    let _courseChapterList = [...courseChapterList];

    if(selectedFileList.length + courseChapterList.length > 20){
      message.warning(`最多只能上传20个文件`);
      return;
    }
    selectedFileList.map((file,index) => {
    const { ossUrl, resourceId, folderName, folderFormat, folderSize } = file;

    const videoDom = document.createElement('video')
    videoDom.src = ossUrl
    videoDom.onloadedmetadata = () => {
      _courseChapterList.push({
        mediaContent: resourceId,
        contentType: 'SCHEDULE',
        mediaType: "VIDEO",
        mediaName: folderName.replace('.mp4',''),
        videoDuration: videoDom.duration,
        resourceId,
        mediaUrl: ossUrl,
        sort: _courseChapterList.length
      })

      this.setState({
        size: folderSize,
        videoName: folderName,
        videoType: folderFormat,
        courseChapterList: _courseChapterList
      })
    }
    })
  }

  // 校验课节名称
  handleValidateChapterName = (chapterName)=> {
    let hasError = false;
    return new Promise((resolve) => {
      if(!chapterName) {
        this.setState({
          chapterNameValidateStatus: "error",
          chapterNameHelpMsg: '请输入课节名称'
        })
        hasError = true;
        resolve(false)
        return false
      }

      if(chapterName.length > 40) {
        this.setState({
          chapterNameValidateStatus: "error",
          chapterNameHelpMsg: '不要超过40字'
        })
        hasError = true;
        resolve(false)
        return false
      }

      if(!hasError){
        resolve(true)
        this.setState({
          chapterNameValidateStatus: "",
          chapterNameHelpMsg: ""
        })
      }
    })
  }

  // 保存
  handleSubmit = () => {
        //过期判断
        if (User.getExpirationTime() && moment().valueOf() > Number(User.getExpirationTime())) {
          Modal.warning({
            title:"服务已到期",
            content: "当前企业购买的小麦企学院服务已到期，如需继续使用学院功能，请尽快续费购买",
            okText: "我知道了"
          })
          return
        }

    const {
      id,
      coverId,
      pageType,
      videoName,
      videoDuration,
      courseName,
      scheduleMedia,
      categoryId,
      shelfState,
      whetherVisitorsJoin,
      introduce,
      courseChapterList,
      editorTextLength,
    } = this.state

    const commonParams = {
      videoName,
      videoDuration,
      scheduleMedia: scheduleMedia.filter((item) => !!item.mediaContent),
      categoryId,
      courseName,
      coverId,
      operatorId: User.getStoreUserId(),
      storeId: User.getStoreId(),
      shelfState,
      whetherVisitorsJoin,
      courseType: 'VOICE',
      courseChapterList
    }
    // 校验必填字段:课程名称, 课程视频
    this.handleValidate(courseName, courseChapterList, categoryId, scheduleMedia, editorTextLength).then((res) => {
      if (!res) return
      Upload.uploadTextToOSS(introduce, `${randomString()}.txt`, (introduceId) => {
        this.submitRemote({ id, pageType, commonParams: { ...commonParams, introduceId } })
      })
    })
  }

  submitRemote = ({ id, pageType, commonParams }) => {
    if (pageType === 'add') {
      Service.Hades('public/hades/createVideoSchedule', commonParams).then((res) => {
        if (!res) return
        message.success('新建成功')
        window.RCHistory.push({
          pathname: `/video-course`
        })
      })
    } else {
      const editParams = {
        courseId: id,
        ...commonParams
      }
      Service.Hades('public/hades/editVideoSchedule', editParams).then((res) => {
        if (!res) return
        message.success('保存成功')
        window.RCHistory.push({
          pathname: `/video-course`
        })
      })
    }
  }

  handleValidate = (courseName, courseChapterList, categoryId, scheduleMedia, editorTextLength) => {
    return new Promise((resolve) => {
      if (!courseName) {
        message.warning('请输入课程名称')
        resolve(false)
        return false
      }
      if (!courseChapterList.length) {
        message.warning('请上传视频')
        resolve(false)
        return false
      }
      if (!categoryId) {
        message.warning('请选择课程分类')
        resolve(false)
        return false
      }
      if (editorTextLength > 1000) {
        message.warning('课程简介超过字数限定');
        resolve(false);
        return;
      }
      resolve(true)
    })
  }
  handleSelectCover = (file) => {
    if(!file){
      message.info("请选择文件！");
      return;
    }
    this.setState({
      visible: true,
      imageFile:file
    });
  }
  //获取resourceId
  getSignature = (blob, fileName) => {
    Upload.uploadBlobToOSS(blob, 'cover' + new Date().valueOf(), null, 'signInfo').then((signInfo) => {
      this.setState(
        {
          coverClicpPath: signInfo.fileUrl,
          coverId: signInfo.resourceId,
          visible: false
        },
        () => this.updateCover()
      )
    })
  }
  updateCover = () => {
    const { coverClicpPath, coverId } = this.state
    this.setState({
      showSelectCoverModal: false,
      coverUrl: coverClicpPath,
      coverId: coverId
    })
  }

  handleRenameCourseChapter = (chapterId, chapterIndex) => {
    const { mediaNameAlias } = this.state;

    this.handleValidateChapterName(mediaNameAlias).then(res => {
      // 校验不通过不能点确定保存修改课节名称
      if (!res) {
        return message.warning('重命名失败');
      }

      let { courseChapterList } = this.state; 
      let  _courseChapterList = [];
      _courseChapterList = courseChapterList.map((item,index)=>{
        if(item.resourceId === chapterId && chapterIndex === index){
          item.mediaName = mediaNameAlias;
          item.visible = false;
        }
        return item
      })
      this.setState({
        courseChapterList: _courseChapterList,
        chapterNameValidateStatus: '',
        chapterNameHelpMsg: '',
        mediaNameAlias: '',
        popConfirmVisible: false
      })
    });

  }

  handleChangePopConfirmVisible = (chapterId, chapterNameIndex, visible)=> {
    let { courseChapterList } = this.state; 
    let  _courseChapterList = [];
    _courseChapterList = courseChapterList.map((item,index)=>{
      if(item.resourceId === chapterId && chapterNameIndex === index){
        item.visible = visible
      } else {
        item.visible = false
      }
      return item
    })
    this.setState({
      courseChapterList: _courseChapterList,
    })
  }

  handleDeleteCourseChapter = (chapterId, chapterIndex) => {
    console.log('chapterId---',chapterId, chapterIndex);
    let { courseChapterList } = this.state; 
    let _courseChapterList = courseChapterList.filter((item,index) => {
        return item.resourceId !== chapterId || item.resourceId === chapterId && chapterIndex !== index
    })
    _courseChapterList.map((item, index) => {
      item.sort = index
    })
    this.setState({
      courseChapterList :_courseChapterList
    })
  }

  renderChapterTitle = (item) => {
    const { chapterNameValidateStatus, chapterNameHelpMsg} = this.state;

    return <div className="course-chapter-title-popover">
      <div className="tag-title">课节名称</div>
        <Form>
          <Form.Item
            validateStatus={chapterNameValidateStatus}
            help={chapterNameHelpMsg}
            >
          <TextArea
            defaultValue={item.mediaName}
            placeholder="请输入课节名称"
            maxLength={40}
            autoSize
            style={{ width: '318px'}}
            onChange={(e) => {
              this.setState({
                mediaNameAlias: e.target.value.trim()
              }, () => {
                this.handleValidateChapterName(this.state.mediaNameAlias)
              })
            }}
          />
          </Form.Item>
          </Form>
      </div>
  }

    // 上下移动
    handleChangeIndex = (isUp, sortIndex) => {
      const { courseChapterList} = this.state;
  
      // 第一个上移和最后一个下移不能使用
      if((isUp && sortIndex === 0) || (!isUp && sortIndex === (courseChapterList.length -1))){
        return;
      }
  
      let _courseChapterList = [...courseChapterList];
      const temp =  courseChapterList[sortIndex];
  
      // 若上移
      if(isUp){
        _courseChapterList[sortIndex -1] = temp;
        _courseChapterList[sortIndex -1].sort = sortIndex -1;
        _courseChapterList[sortIndex] = courseChapterList[sortIndex - 1];
        _courseChapterList[sortIndex].sort = sortIndex;
      } else { // 若下移
        _courseChapterList[sortIndex + 1] = temp;
        _courseChapterList[sortIndex + 1].sort = sortIndex + 1;
        _courseChapterList[sortIndex] = courseChapterList[sortIndex + 1];
        _courseChapterList[sortIndex].sort = sortIndex;
      }
  
      this.setState({
        courseChapterList: _courseChapterList
      })
    }

  render() {
    const {
      pageType,
      courseName,
      coverUrl,
      scheduleMedia,
      showSelectFileModal,
      diskList,
      videoType,
      shelfState,
      categoryName,
      courseCatalogList,
      whetherVisitorsJoin,
      visible,
      showSelectCoverModal,
      hasImgReady,
      cutImageBlob,
      introduce,
      loadintroduce,
      id,
      courseChapterList,
      imageFile,
      popConfirmVisible
    } = this.state

    const courseWareIcon = FileVerifyMap[videoType] ? FileTypeIcon[FileVerifyMap[videoType].type] : FileTypeIcon[videoType]
    const defaultCover = 'https://image.xiaomaiketang.com/xm/mt3ZQRxGKB.png';
    const isDefaultCover = coverUrl === defaultCover || coverUrl == null;

    return (
      <div className='page add-video-course-page'>
        <Breadcrumbs navList={pageType === 'add' ? '新建线上课' : '编辑线上课'} goBack={this.handleGoBack} />

        <div className='box'>
          <div className='show-tips'>
            <ShowTips message='请遵守国家相关规定，切勿上传低俗色情、暴力恐怖、谣言诈骗、侵权盗版等相关内容，小麦企学院保有依据国家规定及平台规则进行处理的权利' />
          </div>

          <div className='form'>
            <div className='course-name required'>
              <span className='label'>课程名称：</span>
              <Input
                value={courseName}
                placeholder='请输入线上课的名称（40字以内）'
                maxLength={40}
                style={{ width: 240 }}
                onChange={(e) => {
                  this.handleChangeForm('courseName', e.target.value)
                }}
              />
            </div>

            <div className='upload-video mt16'>
              <div className='content flex'>
                <span className='label required'>视频上传：</span>
              </div>
              <div className='sub-content'>
                <div className="btn-wrap">
                  <Button
                    onClick={() => {
                      if(courseChapterList.length >= 20) {
                        message.warning(`最多只能上传20个文件`);
                        return;
                      }
                      this.setState({
                        showSelectFileModal: true
                      })
                    }}>添加视频</Button>
                  <div className='course-ware--empty'>从资料云盘中选择视频</div>
                </div>
                <div className='tips'>视频数量限制20个，每个视频文件大小不超过2G</div>
              </div>
            </div>

            <If condition={courseChapterList.length > 0}>
                  <div className="course-chapter-list-wrap">
                    <div className="course-chapter-total">{`共${courseChapterList.length}个课节`}</div>
                    <div className='course-chapter-list' id="course-chapter-list">
                    {
                      _.map(courseChapterList,(item,index) => {
                        return <div className='course-ware' key={index}>
                              <div className="course-ware__index">{index < 9 ? `0${index + 1 } ` : `${index + 1 } `}</div>
                              <img className='course-ware__img' src={courseWareIcon} alt='' />
                              <div className='course-ware__name'>{item.mediaName && item.mediaName.length > 24 ? <Tooltip title={item.mediaName}>{item.mediaName}</Tooltip>:item.mediaName}</div>
                              <div className="course-chapter__opt" id={item.resourceId}>
                                  <div className={`up ${Number(index) === 0 ? 'disabled':''}`} onClick={()=> this.handleChangeIndex(true,item.sort,item.resourceId)}>上移</div>
                                  <div className="line">|</div>
                                  <div className={`down ${Number(index) === (courseChapterList.length - 1) ? 'disabled':''}`} onClick={()=> this.handleChangeIndex(false,item.sort,item.resourceId)}>下移</div>
                                  <div className="line">|</div>
                                  <Popconfirm  
                                    placement="topLeft"
                                    className="course-chapter-tooltip" 
                                    title={this.renderChapterTitle(item)} 
                                    color='#fff' trigger="click" 
                                    overlayClassName="chapter-popover"
                                    getPopupContainer={() =>
                                      document.getElementById('course-chapter-list')
                                    }
                                    destroyTooltipOnHide={true}
                                    visible={item.visible}
                                    onConfirm={() => this.handleRenameCourseChapter(item.resourceId, index)}
                                    icon={null}
                                    onVisibleChange={(visible)=>{
                                      !visible && this.setState({
                                        chapterNameValidateStatus: '',
                                        chapterNameHelpMsg: '',
                                        mediaNameAlias: '',
                                      })
                                    }}
                                    onCancel={()=> this.handleChangePopConfirmVisible(item.resourceId, index, false)}
                                    >
                                      <div className="rename" onClick={() => {this.setState({mediaNameAlias: item.mediaName}, ()=>{
                                        this.handleChangePopConfirmVisible(item.resourceId, index, true)})
                                      }}>重命名</div>
                                    </Popconfirm>
                                <div className="line">|</div>
                                <div className="delete" onClick={()=>this.handleDeleteCourseChapter(item.resourceId, index)}>移除</div>
                              </div>
                        </div>
                      })
                    }

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

            <div className='cover-url flex mt16'>
              <div className='label'>课程封面：</div> 
              <div className='cover-url__wrap'>
                <div className='opt-btns'>
                  <div>
                    <Button
                      onClick={() => {
                        this.setState({ showSelectCoverModal: true })
                      }}>{`${pageType === 'add' && !coverUrl ? '上传' : '修改'}封面`}</Button>
                    <span
                      className={`span ${coverUrl ? 'defalut-span' : ''}`}
                      onClick={() => {
                        this.setState({
                          coverUrl: '',
                          coverId: ''
                        })
                      }}>
                      使用默认图
                    </span>
                  </div>
                  <div className='tips'>建议尺寸1280*720px或16:9。封面图最大5M，支持jpg、jpeg和png。</div>
                </div>

                <div className='img-content'>
                {
                  isDefaultCover && <span className="tag">默认图</span>
                }
                  {/* 如果视频和封面都没有上传的话, 那么就显示缺省, 如果上传了视频, 那么封面图就默认显示视频的第一帧, 如果上传了封面图, 那么就显示上传的封面图 */}
                  <img src={coverUrl || `https://image.xiaomaiketang.com/xm/mt3ZQRxGKB.png`} alt='' />
                </div>
              </div>
            </div>
            <div className='course-catalog required'>
              <span className='label'>课程分类：</span>
              {pageType === 'add' && (
                <Cascader
                  defaultValue={[]}
                  options={courseCatalogList}
                  displayRender={(label) => label.join('-')}
                  fieldNames={fieldNames}
                  onChange={this.catalogChange}
                  style={{ width: 240 }}
                  placeholder='请选择课程分类'
                  suffixIcon={
                    <span className='icon iconfont' style={{ fontSize: '12px', color: '#BFBFBF' }}>
                      &#xe835;
                    </span>
                  }
                />
              )}
              {pageType === 'edit' && categoryName && (
                <Cascader
                  defaultValue={[categoryName]}
                  options={courseCatalogList}
                  displayRender={(label) => label.join('-')}
                  fieldNames={fieldNames}
                  onChange={this.catalogChange}
                  style={{ width: 240 }}
                  placeholder='请选择课程分类'
                  suffixIcon={
                    <span className='icon iconfont' style={{ fontSize: '12px', color: '#BFBFBF' }}>
                      &#xe835;
                    </span>
                  }
                />
              )}
            </div>
            <div className='intro-info mt16'>
              <AddVideoIntro
                data={{
                  id,
                  liveCourseMediaRequests: scheduleMedia,
                  shelfState,
                  whetherVisitorsJoin,
                  introduce,
                  loadintroduce
                }}
                onChange={this.handleChangeForm}
              />
            </div>
          </div>
        </div>

        <div className="footer shrink-footer">
          <Button onClick={this.handleGoBack}>取消</Button>
          <Button onClick={this.handleShowPreviewModal}>预览</Button>
          <Button type='primary' onClick={_.debounce(() => this.handleSubmit(), 3000, true)}>
            保存
          </Button>
        </div>

        {/* 选择备课文件弹窗 */}
        {showSelectFileModal && (
          <SelectPrepareFileModal
            multiple={true}
            operateType='select'
            selectTypeList={['MP4']}
            accept='video/mp4'
            confirm={{
              title: '文件过大，无法上传',
              content: '为保障学员的观看体验，上传的视频大小不能超过2G'
            }}
            tooltip={'格式支持mp4，大小不超过2G'}
            isOpen={showSelectFileModal}
            diskList={diskList}
            addVideo={true}
            onClose={() => {
              this.setState({ showSelectFileModal: false })
            }}
            onSelect={this.handleSelectVideo}
          />
        )}
        {showSelectCoverModal && (
          <SelectPrepareFileModal
            key='basic'
            operateType='select'
            multiple={false}
            accept='image/jpeg,image/png,image/jpg'
            selectTypeList={['JPG', 'JPEG', 'PNG']}
            tooltip='支持文件类型：jpg、jpeg、png'
            isOpen={showSelectCoverModal}
            onClose={() => {
              this.setState({ showSelectCoverModal: false })
            }}
            onSelect={this.handleSelectCover}
          />
        )}
        { visible &&
          <ImgClipModal visible={visible} imgUrl={imageFile.ossUrl} onConfirm={this.getSignature} onClose={()=>{this.setState({ visible: false });}}/>
        }
        {this.state.previewCourseModal}
      </div>
    )
  }
}

export default AddVideoCourse
