/**
 * Copyright (c) Nicolas Gallagher.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

import type { ColorValue } from '../../types';
import type { ViewProps } from '../View';
import * as React from 'react';
import StyleSheet from '../StyleSheet';
import View from '../View';
type ProgressBarProps = {
  ...ViewProps,
  color?: ColorValue,
  indeterminate?: boolean,
  progress?: number,
  trackColor?: ColorValue,
};
const ProgressBar: React.AbstractComponent<ProgressBarProps, React.ElementRef<typeof View>> = React.forwardRef((props, ref) => {
  const {
    color = '#1976D2',
    indeterminate = false,
    progress = 0,
    trackColor = 'transparent',
    style,
    ...other
  } = props;
  const percentageProgress = progress * 100;
  const width = indeterminate ? '25%' : `${percentageProgress}%`;
  return <View {...other} aria-valuemax={100} aria-valuemin={0} aria-valuenow={indeterminate ? null : percentageProgress} ref={ref} role="progressbar" style={[styles.track, style, {
    backgroundColor: trackColor
  }]}>
      <View style={[{
      backgroundColor: color,
      width
    }, styles.progress, indeterminate && styles.animation]} />
    </View>;
});
ProgressBar.displayName = 'ProgressBar';
const styles = StyleSheet.create({
  track: {
    forcedColorAdjust: 'none',
    height: 5,
    overflow: 'hidden',
    userSelect: 'none',
    zIndex: 0
  },
  progress: {
    forcedColorAdjust: 'none',
    height: '100%',
    zIndex: -1
  },
  animation: {
    animationDuration: '1s',
    animationKeyframes: [{
      '0%': {
        transform: 'translateX(-100%)'
      },
      '100%': {
        transform: 'translateX(400%)'
      }
    }],
    animationTimingFunction: 'linear',
    animationIterationCount: 'infinite'
  }
});
export default ProgressBar;