sourcecode/front/project/www/routes/course/detail/page.js

import React from 'react';
import { Link } from 'react-router-dom';
import './index.less';
import Page from '@src/containers/Page';
import Assets from '@src/components/Assets';
import { getMap, formatPercent, formatDate } from '@src/services/Tools';
import Footer from '../../../components/Footer';
import { FaqModal, CommentModal, FinishModal, CourseNoteModal, AskCourseModal } from '../../../components/OtherModal';
import { Contact, AnswerCarousel, Comment } from '../../../components/Other';
import Tabs from '../../../components/Tabs';
import { Icon as GIcon } from '../../../components/Icon';
import Button from '../../../components/Button';
import IconButton from '../../../components/IconButton';
import UserTable from '../../../components/UserTable';
import ProgressText from '../../../components/ProgressText';
import { OpenText } from '../../../components/Open';
import Video from '../../../components/Video';
import { Main } from '../../../stores/main';
import { Course } from '../../../stores/course';
import { User } from '../../../stores/user';
import { Order } from '../../../stores/order';
import { Question } from '../../../stores/question';
import { My } from '../../../stores/my';
import { QrCodeAssets } from '../../../../Constant';

export default class extends Page {
  initState() {
    this.columns = [
      {
        title: '学习内容',
        key: 'title',
        render: (text, record) => {
          const { no } = this.state;
          if (no === record.no) {
            // 当前正在
          }
          return `课时 ${record.no}: ${text}`;
        },
      },
      {
        title: '预习作业',
        key: 'paper',
        render: text => {
          text = text || {};
          const progress = text.report ? formatPercent(text.report.userNumber, text.report.questionNumber) : 0;
          const times = text.paper ? text.paper.resetTimes : 0;
          return (
            <div>
              <div className="v-a-m d-i-b">
                <ProgressText width={50} size="small" times={times} progress={progress} unit="次" />
              </div>
              {!text.report && (
                <IconButton
                  className="m-l-2"
                  type="start"
                  tip="Start"
                  onClick={() => {
                    User.needLogin().then(() => {
                      Question.startLink('preview', text);
                    });
                  }}
                />
              )}
              {text.report && !text.report.isFinish && (
                <IconButton
                  className="m-l-2"
                  type="continue"
                  tip="Continue"
                  onClick={() => {
                    User.needLogin().then(() => {
                      Question.continueLink('preview', text);
                    });
                  }}
                />
              )}
              {text.report && (
                <IconButton
                  className="m-l-2"
                  type="restart"
                  tip="Restart"
                  onClick={() => {
                    User.needLogin().then(() => {
                      Question.restart('preview', text);
                    });
                  }}
                />
              )}
              {text.report && !!text.report.isFinish && (
                <IconButton
                  className="m-l-5"
                  type="report"
                  tip="Report"
                  onClick={() => {
                    User.needLogin().then(() => {
                      Question.reportLink('preview', text);
                    });
                  }}
                />
              )}
            </div>
          );
        },
      },
      {
        title: '进度',
        key: 'progress',
        render: (text, record) => {
          const { paper = {} } = record;
          return `${paper.paper && paper.paper.finishTimes > 0 ? `${paper.paper.finishTimes}次+` : ''}${
            paper.report ? formatPercent(paper.report.userNumber, paper.report.questionNumber, false) : '0%'}`;
        },
      },
      {
        title: '最近学习',
        key: 'lastTime',
        render: (text, record) => {
          const { paper = {} } = record;
          return paper.report && formatDate(paper.report.updateTime, 'YYYY-MM-DD HH:mm:ss');
        },
      },
      {
        title: '笔记',
        key: 'note',
        render: (text, record) => {
          return <GIcon name="note" active={record.note} />;
        },
      },
      {
        title: '问答',
        key: 'ask',
        render: (text, record) => {
          return (
            <Link to={`/course/answer/${record.courseId}?tab=my&courseNoId=${record.id}`}>{`${record.answerNumber ||
              0}/${record.askNumber || 0}`}</Link>
          );
        },
      },
    ];
    return {
      tab: '1',
      rightTab: '1',
      key: '1',
      add: false,
      list: [{ key: '1' }, { key: '2' }, { key: '3' }],
      data: {},
      position: 0,
    };
  }

  init() {
    Main.dataStruct().then(result => {
      const dataStructSelect = result.map(row => {
        return {
          title: `${row.titleZh}${row.titleEn}`,
          key: row.id,
        };
      });
      const dataStructMap = getMap(dataStructSelect, 'key');
      this.setState({ dataStructSelect, dataStructMap });
    });
    Main.getBase().then(result => {
      this.setState({ base: result });
    });
  }

  formatRecord(row) {
    row.paperMap = {};
    if (row.papers) {
      row.papers.forEach(paper => {
        if (paper.courseNo) row.paperMap[paper.courseNo] = paper;
      });
    }
    row.progressMap = {};
    if (row.progress) {
      row.progress.forEach(progress => {
        row.progressMap[progress.courseNoId] = progress;
      });
    }

    row.courseNoMap = {};
    row.courseTime = 0;
    if (row.courseNos) {
      row.courseNos.forEach(no => {
        row.courseNoMap[no.id] = no;
        row.courseTime += no.time;
        no.paper = row.paperMap[no.id];
        no.progress = row.progressMap[no.id];
      });
    }
    if (row.currentNo) {
      row.currentCourseNo = row.courseNoMap[row.currentNo];
    } else {
      row.currentNo = 0;
    }
    return row;
  }

  initData() {
    const { id } = this.params;
    Course.detail(id).then(result => {
      result = this.formatRecord(result);
      // result.have = true;
      // result.waters = ['高*', '152****4895'];
      this.setState({ data: result });
      // 选择课时
      if (this.state.search.no) {
        this.onChangeItem(this.state.search.no);
      } else {
        this.onChangeItem(1);
      }
      if (!result.have) {
        Course.trailView(id);
      }
      this.refreshNote();
    });
    Main.listComment({ page: 1, size: 100, channel: 'course-video', position: id }).then(result => {
      this.comments = result.list;
      this.setState({ comments: result.list });
    });
  }

  refreshAsk(position) {
    const { id } = this.params;
    const { item = {} } = this.state;
    Course.listAsk(Object.assign({ page: 1, size: 1000, courseId: id, courseNoId: item.id, position })).then(result => {
      this.setState({ asks: result.list });
    });
  }

  refreshNote() {
    const { id } = this.params;
    const { data } = this.state;
    if (!data.have) return;
    My.listCourseNote({ courseId: id, page: 1, size: data.courseNos.length })
      .then((result) => {
        this.noteMap = getMap(result.list, 'courseNoId');
        data.courseNos.forEach((row) => {
          const note = this.noteMap[row.id];
          if (note) row.note = true;
        });
        this.setState({ data });
      });
  }

  onChangeRightTab(rightTab) {
    this.setState({ rightTab });
  }

  onChangeTab(tab) {
    this.setState({ tab });
  }

  onChangeItem(key) {
    key = Number(key);
    this.changeQuery({ no: key });
    this.setState({ no: key });
    const { data, item } = this.state;
    const index = key - 1;
    const timelineSelect = [];
    const current = data.courseNos[index];
    if (current) {
      const max = current.time;
      let start = 0;
      let end = start + 5;
      while (start < max) {
        timelineSelect.push({
          title: `${start} - ${end}min`,
          key: `${start}`,
        });
        start += 5;
        end = Math.min(start + 5, max);
      }
    }
    // 切换播放，记录进度
    if (item) {
      this.updateProgress(item.id, this.lastSecond, item.time, true);
    }
    this.setState({ item: current, timelineSelect });
  }

  onTimeUpdate(second) {
    const { position, item = {}, data } = this.state;
    if (!data.have) {
      // 如果是试用，则按秒数增加
      second += (item.startTrail || 0) * 60;
    }
    const minute = parseInt(second / 60, 10);
    const nowPosition = parseInt(minute / 5, 10) * 5;
    if (nowPosition !== position) {
      this.refreshAsk(position);
      this.setState({ position: nowPosition });
      // 定时更新进度
      this.updateProgress(item.id, second, item.time);
    }
    this.lastSecond = second;
    this.showWater(second);
  }

  playVideo(second) {
    // 开始计时
    this.lastTime = new Date();
    this.showWater(second);
  }

  showWater(second, extend) {
    const { data, water = {} } = this.state;
    let { waters = [] } = data;
    waters = waters || [];
    if (!this.lastTime && water.show) {
      water.show = false;
      second -= 1;
      water.transition = '';
    } else if (!water.show) {
      water.show = true;
      water.transition = 'transform 1s linear 0s';
    }
    if (water.show) {
      water.opacity = 1;
    } else {
      water.opacity = 0;
    }
    if (extend) {
      Object.assign(water, extend);
    }
    const time = 15;
    const stop = 0;
    const times = (second / (time + stop));
    const index = parseInt(times % waters.length, 10);
    const current = (second % (time + stop));
    water.style = [2, 0, 2, 1][parseInt((times % 4), 10)] + 1;
    water.text = waters[[0, 1][index]];
    // console.log(water.show, current, current / 4, (current / 4) % 2);
    if (water.show) {
      water.opacity = (current / 4) % 2 > 1 ? 0 : 1;
    }
    // if (water.style % 2) {
    //   water.transform = `translateX(${current * 100 / time}%)`;
    // } else {
    water.transform = `translateX(${100 - ((current - stop / 2) * 100 / time)}%)`;
    // }
    this.setState({ water });
  }

  onChangeProgress(second) {
    this.showWater(second - 1, this.lastTime ? { transition: '', opacity: 0 } : { transition: '', opacity: 0 });
    setTimeout(() => {
      this.showWater(second, this.lastTime ? { transition: 'transform 1s linear 0s', opacity: 1 } : { transition: '', opacity: 0 });
    }, 1);
  }

  pauseVideo(second) {
    // 停止计时
    const now = new Date();
    if (this.lastTime != null) {
      this.time += (now.getTime() - this.lastTime.getTime()) / 1000;
    }
    this.lastTime = null;
    this.showWater(second);
  }

  next() {
    const { data, item } = this.state;
    if (data.courseNos.length === item.no) {
      return;
    }
    this.onChangeItem(item.no + 1);
  }

  onVideoAction(key) {
    const { rightTab, showTab, showAsk, showNote, item = {} } = this.state;
    switch (key) {
      case 'ask':
        return this.setState({ showAsk: !showAsk });
      case 'note':
        return this.setState({ showNote: !showNote, note: this.noteMap ? this.noteMap[item.id] || {} : {} });
      case 'answer':
        return this.setState({ showTab: rightTab === '1' ? !showTab : true, rightTab: '1' });
      case 'list':
        return this.setState({ showTab: rightTab === '2' ? !showTab : true, rightTab: '2' });
      default:
        return '';
    }
  }

  updateProgress(courseNoId, currentTime, totalTime, record) {
    if (!this.lastTime) return;
    const { id } = this.params;
    const now = new Date();
    this.time += (now.getTime() - this.lastTime.getTime()) / 1000;
    this.lastTime = now;
    const progress = formatPercent(currentTime, totalTime);
    if (record || this.time > 600) {
      // 最长5分钟记录一次
      Course.noProgress(id, courseNoId, progress, this.time, courseNoId);
      this.time = 0;
    } else {
      Course.noProgress(id, courseNoId, progress, null, null);
    }
  }

  buy() {
    const { data } = this.state;
    User.needLogin().then(() => {
      Order.speedPay({ productType: 'course', productId: data.id }).then(result => {
        User.needPay(result).then(() => {
          this.refresh();
        });
      });
    });
  }

  add() {
    const { data } = this.state;
    User.needLogin().then(() => {
      Order.addCheckout({ productType: 'course', productId: data.id }).then(() => {
        this.setState({ add: true });
      });
    });
  }

  viewAsk(id) {
    Course.askView(id);
  }

  setVideo(video) {
    this.video = video;
  }

  renderView() {
    const { base = {}, data = {}, item = {}, add, rightTab, showTab, showAsk, showNote, dataStructMap = {}, showComment, comment = {}, showFaq, faq = {}, showFinish, note = {}, ask = {}, timelineSelect = [], water = {} } = this.state;
    const { courseNos = [] } = data;
    const { paper = {} } = item;
    return (
      <div>
        <div className="top content t-8">
          <Link to="/course">千行课堂</Link> > <Link to="/course/online?tab=single">全部课程</Link> > {data.parentStructId > 0 ? <Link to={`/course/online?tab=single&parentStructId=${(dataStructMap[data.parentStructId] || {}).key}`}>{(dataStructMap[data.parentStructId] || {}).title}</Link> : null}{data.parentStructId > 0 ? '> ' : ''}
          <Link to={`/course/online?tab=single&parentStructId=${(dataStructMap[data.parentStructId] || {}).key}&structId=${(dataStructMap[data.structId] || {}).key}`}>{(dataStructMap[data.structId] || {}).title}</Link> > <Link to={`/course/detail/${data.id}`}>{data.title}</Link> > <span className="t-1">课程详情</span>
        </div>
        <div className="center content">
          <div className="t-1 t-s-20">
            {data.title}
            <div className="action f-r">
              {!data.have && <Button className="m-r-1" radius size="lager" onClick={() => this.buy()}>
                立即购买
              </Button>}
              {!data.have && <Button theme="default" radius size="lager" disabled={data.add || add} onClick={() => this.add()}>
                <Assets name="add" />
              </Button>}
              {data.have && <Button className="m-r-1" radius size="lager" onClick={() => linkTo('/my/course')}>
                我的课程
              </Button>}
            </div>
          </div>
          <div className="t-2 m-b-1">授课老师：{data.teacher}</div>
          <div className={'detail'}>
            <div className="left">
              {data.have && <div hidden={(paper.paper && paper.paper.finishTimes > 0)} className="left-top">
                <span className="d-i-b m-r-1">预习作业</span>
                <span className="d-i-b m-r-2">
                  <ProgressText width={480} size="small" progress={paper.report ? formatPercent(paper.report.userNumber, paper.report.questionNumber) : 0} />
                </span>
                <Button className="f-r" radius onClick={() => (paper.report ? Question.continueLink('preview', paper) : Question.startLink('preview', paper))}>
                  做题
                </Button>
              </div>}
              <div className="video-layout">
                {item.resource && <Video
                  key={item.id}
                  src={item.resource}
                  width={750}
                  height={467}
                  ref={ref => this.setVideo(ref)}
                  water={<div key={water.style} className={`video-water style-${water.style}`} style={{ ...water }}>{water.text}</div>}
                  btnList={[
                    { title: '提问', key: 'ask', show: data.have, active: showAsk, pause: true },
                    {
                      key: 'answer',
                      render(active) {
                        return <Assets name={active ? 'question_on' : 'question_off'} />;
                      },
                      full: true,
                      show: true,
                      active: showTab && rightTab === '1',
                    },
                    { title: '笔记', key: 'note', show: data.have, active: showNote, pause: true },
                    { title: '课表', key: 'list', show: true, full: true, active: showTab && rightTab === '2' },
                  ]}
                  onPlay={(second) => this.playVideo(second)}
                  onPause={(second) => this.pauseVideo(second)}
                  onChangeProgress={(second) => this.onChangeProgress(second)}
                  onNext={() => this.next()}
                  onAction={key => this.onVideoAction(key)}
                  onTimeUpdate={time => this.onTimeUpdate(time)}
                  onFullChange={() => this.setState({ showTab: true, rightTab: '1' })}
                >
                  <div hidden={!showTab} className="video-fixed tab-warpper">
                    <Tabs
                      type="division"
                      theme="gray"
                      space={2.5}
                      active={rightTab}
                      tabs={[{ title: '精选问答', key: '1' }, { title: '课时列表', key: '2' }]}
                      onChange={key => this.onChangeRightTab(key)}
                    />
                    <div className="tab-body">{this[`renderRightTab${rightTab}`]()}</div>
                  </div>
                </Video>}
              </div>
            </div>
            <div className={`detail-right ${data.have && !(item.paper && item.paper.finishTimes > 0) ? 'have' : ''}  tab-warpper`}>
              <Tabs
                type="division"
                theme="gray"
                space={2.5}
                active={rightTab}
                tabs={[{ title: '精选问答', key: '1' }, { title: '课时列表', key: '2' }]}
                onChange={key => this.onChangeRightTab(key)}
              />
              <div className="tab-body">{this[`renderRightTab${rightTab}`]()}</div>
            </div>
          </div>
          {data.have && <UserTable columns={this.columns} list={courseNos} />}
        </div>
        <div hidden={data.have} className="bottom">
          <div className="content">{this.renderTab()}</div>
        </div>
        <Contact data={base.contact} />
        <Footer />
        <AskCourseModal getContainer={() => (showTab ? document.getElementById(this.video.state.id) : document.body)} show={showAsk} defaultData={ask} course={data} courseNo={item} selectList={timelineSelect} onConfirm={() => this.setState({ showAsk: false })} onCancel={() => this.setState({ showAsk: false })} />
        <CourseNoteModal getContainer={() => (showTab ? document.getElementById(this.video.state.id) : document.body)} show={showNote} defaultData={note} course={data} courseNos={courseNos} noteMap={this.noteMap} onConfirm={() => {
          this.setState({ showNote: false });
          this.refreshNote();
        }} onCancel={() => this.setState({ showNote: false })} />
        <CommentModal
          show={showComment}
          defaultData={comment}
          onConfirm={() => this.setState({ showComment: false, commnet: {}, showFinish: true })}
          onCancel={() => this.setState({ showComment: false, commnet: {} })}
          onClose={() => this.setState({ showComment: false, commnet: {} })}
        />
        <FaqModal show={showFaq} defaultData={faq} onCancel={() => this.setState({ showFaq: false, faq: {} })} onConfirm={() => this.setState({ showFaq: false, faq: {}, showFinish: true })} />
        <FinishModal
          getContainer={() => document.getElementById(this.video.state.id)}
          show={showFinish}
          onConfirm={() => this.setState({ showFinish: false })}
        />
      </div >
    );
  }

  renderRightTab1() {
    const { asks = [], data = {}, position } = this.state;
    return [
      <div className="all-answer">
        <span className="d-i-b b m-r-5" />
        <span className="d-i-b t-6">{position}:00~{position + 5}:00</span>
        <a className="f-r d-i-b t-4 c-p" href={`/course/answer/${data.id}`} target="_blank">全部问答 ></a>
      </div>,
      <div className="answer-layout">
        {asks.map(item => {
          return (
            <div className="answer-item">
              <div>
                <div className="small-tag">提问</div>
              </div>
              <div className="desc">
                <OpenText>{item.content}</OpenText>
              </div>
              {item.answerStatus > 0 && (
                <div>
                  <div className="small-tag">回答</div>
                </div>
              )}
              {item.answerStatus > 0 && (
                <div className="desc">
                  <OpenText onOpen={() => this.viewAsk(item.id)}>{item.answer}</OpenText>
                </div>
              )}
            </div>
          );
        })}
      </div>,
    ];
  }

  renderRightTab2() {
    const { data = {}, no } = this.state;
    const { courseNos = [] } = data;
    return (
      <div className="item-layout">
        {courseNos.map(item => {
          return (
            <div className={`item ${item.no === no ? 'active' : ''}`} onClick={() => this.onChangeItem(item.no)}>
              <span className="t-1">课时{item.no}</span>
              <span className="t-2">{item.title}</span>
            </div>
          );
        })}
      </div>
    );
  }

  renderTab() {
    const { tab } = this.state;
    return [
      <div className="bottom">
        <div className="content">
          <Tabs
            type="full"
            border
            active={tab}
            tabs={[
              { title: '课程介绍', key: '1' },
              { title: '授课大纲', key: '2' },
              { title: '小助手', key: '3' },
              { title: 'FAQs', key: '4' },
              { title: '优惠信息', key: '5' },
              { title: '学员评价', key: '6' },
            ]}
            onChange={key => this.onChangeTab(key)}
          />
          {this[`renderTab${tab}`]()}
        </div>
      </div>,
    ];
  }

  renderTab1() {
    const { data = {} } = this.state;
    return (
      <div className="tab-layout">
        <div className="tab-title">老师资历</div>
        <div className="tab-desc" dangerouslySetInnerHTML={{ __html: data.teacherContent }} />
        <div className="tab-title">基本参数</div>
        <div className="tab-desc" dangerouslySetInnerHTML={{ __html: data.baseContent }} />
        <div className="tab-title">授课重点</div>
        <div className="tab-desc" dangerouslySetInnerHTML={{ __html: data.pointContent }} />
        <div className="tab-title">适合人群</div>
        <div className="tab-desc" dangerouslySetInnerHTML={{ __html: data.crowdContent }} />
      </div>
    );
  }

  renderTab2() {
    const { data } = this.state;
    return (
      <div className="tab-layout">
        <div className="tab-desc" dangerouslySetInnerHTML={{ __html: data.syllabusContent }} />
      </div>
    );
  }

  renderTab3() {
    return (
      <div className="tab-layout">
        <div className="qr-layout">
          <Assets name={QrCodeAssets} className="m-r-2 v-a-t" />
          <div className="p-l-1 d-i-b t-l">
            <div className="t-1">千行小助手:</div>
            <div className="t-1 m-b-2">1232104-310431</div>
            <div className="t-2 t-s-12">微信扫码添加千行小助手为好友，</div>
            <div className="t-2 t-s-12">咨询课程，了解更多信息</div>
          </div>
        </div>
      </div>
    );
  }

  renderTab4() {
    const { faqs, data = {} } = this.state;
    return (
      <div className="tab-layout">
        <AnswerCarousel
          hideBtn
          list={faqs}
          onFaq={() => User.needLogin().then(() => this.setState({ showFaq: true, faq: { channel: 'course-video', position: data.id } }))}
        />
      </div>
    );
  }

  renderTab5() {
    const { data = {} } = this.state;
    return (
      <div className="tab-layout">
        <div className="tab-desc" dangerouslySetInnerHTML={{ __html: data.promoteContent }} />
      </div>
    );
  }

  renderTab6() {
    const { data = {}, comments = [] } = this.state;
    return (
      <div className="tab-layout">
        {data.have && <div className="m-b-1 t-r">
          <Button width={100} radius onClick={() => User.needLogin().then(() => this.setState({ showComment: true, comment: { channel: 'course-video', position: data.id } }))}>
            写评论
          </Button>
        </div>}
        {(comments || []).map(item => {
          return <Comment data={item} />;
        })}
      </div>
    );
  }
}