import React, { Component } from 'react';
import './index.less';
import Assets from '@src/components/Assets';
import { formatSecond, formatPercent } from '@src/services/Tools';
import Icon from '../../../../components/Icon';
import Button from '../../../../components/Button';
import Tabs from '../../../../components/Tabs';
import Progress from '../../../../components/Progress';
import HardInput from '../../../../components/HardInput';
import AnswerCheckbox from '../../../../components/AnswerCheckbox';
import { SentenceOption } from '../../../../../Constant';
import { Question } from '../../../../stores/question';

export default class extends Component {
  constructor(props) {
    super(props);
    // 确保可以自身进行答案显示，外部也可以直接显示答案
    // 将props转入state
    this.state = {
      analysisTab: 'qx',
      focusKey: 'subject',
      scene: this.props.scene || 'answer',
      userQuestion: this.props.userQuestion,
      question: this.props.question,
    };
    const { question, userQuestion } = this.props;
    if (this.state.scene === 'answer') {
      this.state.stem = this.formatStem(question.stem, userQuestion.userAnswer, question.answer);
    } else {
      this.state.stem = question.stem;
    }
  }

  showAnswer() {
    const { userQuestion } = this.state;
    Question.getDetailById(userQuestion.id).then(result => {
      const { question } = result;
      this.setState({
        userQuestion: result,
        question: result.question,
        scene: 'answer',
        stem: this.formatStem(question.stem, result.userAnswer, question.answer),
      });
    });
  }

  addTarget(target) {
    const uuid = target.getAttribute('uuid');
    if (!uuid) return;
    const text = target.innerText;
    const { focusKey, answer = {}, question } = this.state;
    if (!answer[focusKey]) answer[focusKey] = [];
    if (answer[focusKey].filter(row => row.uuid === uuid).length > 0) return;
    answer[focusKey].push({
      text,
      uuid,
    });
    this.setState({
      answer,
      stem: this.formatStem(question.stem, answer),
    });
  }

  removeTarget(key, target) {
    const { answer = {}, question } = this.state;
    if (!answer[key]) return;
    answer[key] = answer[key].filter(row => row.uuid !== target.uuid);
    this.setState({
      answer,
      stem: this.formatStem(question.stem, answer),
    });
  }

  next() {
    const { flow } = this.props;
    const { scene } = this.state;
    if (scene === 'question') {
      const { answer } = this.state;
      flow.submit(answer).then(() => {
        this.showAnswer();
      });
    } else if (scene === 'answer') {
      flow.next();
    }
  }

  formatStem(stem, userAnswer, answer) {
    // userAnswer 添加蓝色字， 错误的添加红色背景
    // answer 添加绿色背景
    const uuidMap = {};
    const show = !!answer;
    answer = answer || {};
    userAnswer = userAnswer || {};
    Object.keys(userAnswer).forEach((key) => {
      if (key === 'options') return;
      const u = userAnswer[key];
      const a = answer[key] && answer[key].length > 0 ? answer[key][0] : [];
      const map = {};
      a.forEach((row) => {
        if (!uuidMap[row.uuid]) uuidMap[row.uuid] = [];
        uuidMap[row.uuid].push('true');
        map[row.uuid] = row;
      });
      u.forEach((row) => {
        if (!uuidMap[row.uuid]) uuidMap[row.uuid] = [];
        uuidMap[row.uuid].push('user');
        if (show && !map[row.uuid]) uuidMap[row.uuid].push('false');
      });
    });
    Object.keys(uuidMap).forEach(uuid => {
      stem = stem.replace(`uuid='${uuid}'`, `uuid='${uuid}' class='${uuidMap[uuid].join(' ')}'`);
    });
    return stem;
  }

  render() {
    const { flow, paper, userQuestion, singleTime } = this.props;
    return (
      <div id='paper-process-sentence'>
        <div className="layout">
          <div className="layout-header">
            <div className="left">
              <div className="title">{paper.title}</div>
            </div>
            <div className="right">
              <div className="text"><Assets name='timecost_icon' />Time cost {formatSecond(userQuestion.userTime || singleTime)}</div>
              <Icon name="star" active={userQuestion.collect} onClick={() => flow.toggleCollect()} />
            </div>
          </div>
          {this.renderBody()}
          <div className="layout-footer">
            <div className="left">
              <Icon name={this.props.isFullscreenEnabled ? 'sceen-restore' : 'sceen-full'} onClick={() => flow.toggleFullscreen()} />
            </div>
            <div className="center">
              <div className="p">
                <Progress theme="theme" progress={formatPercent(userQuestion.no, paper.questionNumber)} />
              </div>
              <div className="t">{userQuestion.no}/{paper.questionNumber}</div>
            </div>
            <div className="right">
              <Button size="lager" radius onClick={() => {
                this.next();
              }}>
                Next <Assets name="next_icon" />
              </Button>
            </div>
          </div>
        </div>
      </div>
    );
  }

  renderBody() {
    const { scene } = this.state;
    switch (scene) {
      case 'question':
        return this.renderQuestion();
      case 'answer':
        return this.renderAnswer();
      default:
        return null;
    }
  }

  renderQuestion() {
    const { focusKey, answer = {}, stem } = this.state;
    return (
      <div className="layout-body">
        <div className="title"><Icon name="question" />请分别找出句子中的主语，谓语和宾语，并做出逻辑关系判断。</div>
        <div className="desc" dangerouslySetInnerHTML={{ __html: stem }} onClick={(e) => {
          this.addTarget(e.target);
        }} />
        <div className="label">主语</div>
        <div className="input">
          <HardInput
            focus={focusKey === 'subject'}
            list={answer.subject || []}
            onClick={() => {
              this.setState({ focusKey: 'subject' });
            }}
            onDelete={(item) => {
              this.removeTarget('subject', item);
            }}
          />
        </div>
        <div className="label">谓语</div>
        <div className="input">
          <HardInput
            focus={focusKey === 'predicate'}
            list={answer.predicate || []}
            onClick={() => {
              this.setState({ focusKey: 'predicate' });
            }}
            onDelete={(item) => {
              this.removeTarget('predicate', item);
            }}
          />
        </div>
        <div className="label">宾语</div>
        <div className="input">
          <HardInput
            focus={focusKey === 'object'}
            list={answer.object || []}
            onClick={() => {
              this.setState({ focusKey: 'object' });
            }}
            onDelete={(item) => {
              this.removeTarget('object', item);
            }}
          />
        </div>
        <div className="select">
          <div className="select-title">本句存在以下哪种逻辑关系？（可多选）</div>
          <AnswerCheckbox list={SentenceOption} selected={answer.options} onChange={(values) => {
            answer.options = values;
            this.setState({ answer });
          }} />
        </div>
      </div>
    );
  }

  renderAnswer() {
    const { analysisTab, question, userQuestion, stem } = this.state;
    const { userAnswer = {} } = userQuestion;
    const { answer } = question;
    return <div className="layout-body">
      <div className="title"><Icon name="question" />请分别找出句子中的主语，谓语和宾语，并做出逻辑关系判断。</div>
      <div className="desc" dangerouslySetInnerHTML={{ __html: stem }} />
      <div className="label">主语</div>
      <div className="input">
        <HardInput
          show
          list={userAnswer.subject || []}
          answer={answer.subject}
        />
      </div>
      <div className="label">谓语</div>
      <div className="input">
        <HardInput
          show
          list={userAnswer.predicate || []}
          answer={answer.predicate}
        />
      </div>
      <div className="label">宾语</div>
      <div className="input">
        <HardInput
          show
          list={userAnswer.object || []}
          answer={answer.object}
        />
      </div>
      <div className="select">
        <div className="select-title">本句存在以下哪种逻辑关系？（可多选）</div>
        <AnswerCheckbox show list={SentenceOption} selected={userAnswer.options} answer={answer.options} />
      </div>
      <div className="analysis">
        <Tabs
          type="division"
          active={analysisTab}
          tabs={[{ key: 'qx', name: '解析详情' }, { key: 'chinese', name: '中文语意' }]}
          onChange={(key) => {
            this.setState({ analysisTab: key });
          }}
        />
        {this.renderText()}
      </div>
    </div>;
  }

  renderText() {
    const { analysisTab, question = {}, questionNo = {} } = this.state;
    let content;
    switch (analysisTab) {
      case 'chinese':
        content = <div className="detail-block text-block" dangerouslySetInnerHTML={{ __html: questionNo.chineseContent }} />;
        break;
      case 'qx':
        content = <div className="detail-block text-block" dangerouslySetInnerHTML={{ __html: question.qxContent }} />;
        break;
      default:
        break;
    }
    return content;
  }
}