import React from 'react';
// import logo from './logo.svg';
import './Quiz.css';


const question = [
  { Q: "6 X 4 ?", Choose: [6, 12, 18, 24], A: "" },
  { Q: "3 + 3 ?", Choose: [2, 4, 6, 8], A: "" },
  { Q: "3 - 1 ?", Choose: [1, 2, 3, 4], A: "" }
]

class Quiz extends React.Component {
  constructor(props) {
    super(props)
    // this.setAnswer = this.setAnswer.bind(this)
    this.setQuestion = this.setQuestion.bind(this)
    this.ShowQuiz = this.ShowQuiz.bind(this)
    this.state = { ...question[0], i: 0, v: "", r: 0, c: "" }
  }
  ShowQuiz() {
    this.setState({  r: 1 })
  }
  setQuestion() {
    this.setState({ ...question[this.state.i + 1], i: this.state.i + 1, v: "" })
  }
  // setAnswer(e) {
  //   question[this.state.i]["A"] = e.target.value
  //   this.setState({ v: e.target.value })
  //   console.log(this.state)
  //   console.log(question)
  // }
  render() {
    if (this.state.r === 1) {
      if (this.state.i === 3) {
        return (
          <div>
            <h2>수고하셨습니다!</h2>
          </div>
        )
      }
      else {
        return (
          <div className="Quiz">
            <h2>Q:{this.state.Q}</h2>
            <div>① {this.state.Choose[0]}</div>
            <div>② {this.state.Choose[1]}</div>
            <div>③ {this.state.Choose[2]}</div>
            <div>④ {this.state.Choose[3]}</div>
            <div className="App">
              정답을 입력하세요
              <select>
                <option hidden disabled selected>정답선택</option>
                <option value={this.state.Choose[0]}>①</option>
                <option value={this.state.Choose[1]}>②</option>
                <option value={this.state.Choose[2]}>③</option>
                <option value={this.state.Choose[3]}>④</option>
              </select>
            </div>
            {/* <div>
              <input type="text" value={this.state.v} name="A" onChange={this.setAnswer} />
            </div> */}
            <button type="button" onClick={this.setQuestion}>다음 문제로</button>
          </div>
        )
      }
    }
    else {
      return (
        <div className="Box">
          <div className="Main">
            <h1> Calculus</h1>
          </div>
          <div className="Name">
            이름을 입력하세요
          <input onChange={(event) => { console.log(event.target.value) }} />
          </div>
          <button className="QuizStart" onClick={this.ShowQuiz}>Quiz Start !</button>
        </div>

      )
    }
  }
}

export default Quiz;