import NumberPicker from '..';
import React from 'react';
import ReactDOM from 'react-dom';
interface PageStates {
  value: number;
  tip: string;
}
class App extends React.Component<{}, PageStates> {
  constructor(props) {
    super(props);
    this.state = {
      value: 0,
      tip: '',
    };
    this.onChange = this.onChange.bind(this);
  }
  onChange(value) {
    let num = '';
    if (value >= 0) {
      num = value;
    } else {
      num = `negative ${value * -1}`;
    }
    this.setState({
      value,
      tip: `${num}`,
    });
  }
  render() {
    const { value, tip } = this.state;
    return (
      <div>
        <span
          id="a11y-number-picker"
          aria-live="assertive"
          aria-label={tip}
        ></span>
        <NumberPicker
          type="inline"
          value={value}
          onChange={this.onChange}
          upBtnProps={{ 'aria-label': 'increasing button' }}
          downBtnProps={{ 'aria-label': 'decreasing button' }}
          aria-labelledby="a11y-number-picker"
        />
      </div>
    );
  }
}

ReactDOM.render(<App />, document.getElementById('number-picker-demo-9'));