var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

import React from 'react';
import classNames from 'classnames';
import warning from 'warning';
import withStyles from '../styles/withStyles';

const TRANSITION_DURATION = 4; // 400ms

export const styles = theme => ({
  root: {
    position: 'relative',
    overflow: 'hidden',
    height: 5
  },
  primaryColor: {
    backgroundColor: theme.palette.primary[100]
  },
  primaryColorBar: {
    backgroundColor: theme.palette.primary[500]
  },
  primaryDashed: {
    background: `radial-gradient(${theme.palette.primary[100]} 0%, ${theme.palette.primary[100]} 16%, transparent 42%)`,
    backgroundSize: '10px 10px',
    backgroundPosition: '0px -23px'
  },
  accentColor: {
    backgroundColor: theme.palette.secondary.A100
  },
  accentColorBar: {
    backgroundColor: theme.palette.secondary.A400
  },
  accentDashed: {
    background: `radial-gradient(${theme.palette.secondary.A100} 0%, ${theme.palette.secondary.A100} 16%, transparent 42%)`,
    backgroundSize: '10px 10px',
    backgroundPosition: '0px -23px'
  },
  bar: {
    width: '100%',
    position: 'absolute',
    left: 0,
    bottom: 0,
    top: 0,
    transition: 'transform 0.2s linear',
    transformOrigin: 'left'
  },
  dashed: {
    position: 'absolute',
    marginTop: 0,
    height: '100%',
    width: '100%',
    animation: 'buffer 3s infinite linear'
  },
  bufferBar2: {
    transition: `transform .${TRANSITION_DURATION}s linear`
  },
  rootBuffer: {
    backgroundColor: 'transparent'
  },
  rootQuery: {
    transform: 'rotate(180deg)'
  },
  indeterminateBar1: {
    width: 'auto',
    willChange: 'left, right',
    animation: 'mui-indeterminate1 2.1s cubic-bezier(0.65, 0.815, 0.735, 0.395) infinite'
  },
  indeterminateBar2: {
    width: 'auto',
    willChange: 'left, right',
    animation: 'mui-indeterminate2 2.1s cubic-bezier(0.165, 0.84, 0.44, 1) infinite',
    animationDelay: '1.15s'
  },
  determinateBar1: {
    willChange: 'transform',
    transition: `transform .${TRANSITION_DURATION}s linear`
  },
  bufferBar1: {
    zIndex: 1,
    transition: `transform .${TRANSITION_DURATION}s linear`
  },
  bufferBar2Primary: {
    transition: `transform .${TRANSITION_DURATION}s linear`,
    backgroundColor: theme.palette.primary[100]
  },
  bufferBar2Accent: {
    transition: `transform .${TRANSITION_DURATION}s linear`,
    backgroundColor: theme.palette.secondary.A100
  },
  // Legends:
  // || represents the viewport
  // -  represents a light background
  // x  represents a dark background
  '@keyframes mui-indeterminate1': {
    //  |-----|---x-||-----||-----|
    '0%': {
      left: '-35%',
      right: '100%'
    },
    //  |-----|-----||-----||xxxx-|
    '60%': {
      left: '100%',
      right: '-90%'
    },
    '100%': {
      left: '100%',
      right: '-90%'
    }
  },
  '@keyframes mui-indeterminate2': {
    //  |xxxxx|xxxxx||-----||-----|
    '0%': {
      left: '-200%',
      right: '100%'
    },
    //  |-----|-----||-----||-x----|
    '60%': {
      left: '107%',
      right: '-8%'
    },
    '100%': {
      left: '107%',
      right: '-8%'
    }
  },
  '@keyframes buffer': {
    '0%': {
      opacity: 1,
      backgroundPosition: '0px -23px'
    },
    '50%': {
      opacity: 0,
      backgroundPosition: '0px -23px'
    },
    '100%': {
      opacity: 1,
      backgroundPosition: '-200px -23px'
    }
  }
});

function LinearProgress(props) {
  const { classes, className, color, mode, value, valueBuffer } = props,
        other = _objectWithoutProperties(props, ['classes', 'className', 'color', 'mode', 'value', 'valueBuffer']);

  const dashedClass = classNames(classes.dashed, {
    [classes.primaryDashed]: color === 'primary',
    [classes.accentDashed]: color === 'accent'
  });

  const rootClassName = classNames(classes.root, {
    [classes.primaryColor]: color === 'primary',
    [classes.accentColor]: color === 'accent',
    [classes.rootBuffer]: mode === 'buffer',
    [classes.rootQuery]: mode === 'query'
  }, className);
  const primaryClassName = classNames(classes.bar, {
    [classes.primaryColorBar]: color === 'primary',
    [classes.accentColorBar]: color === 'accent',
    [classes.indeterminateBar1]: mode === 'indeterminate' || mode === 'query',
    [classes.determinateBar1]: mode === 'determinate',
    [classes.bufferBar1]: mode === 'buffer'
  });
  const secondaryClassName = classNames(classes.bar, {
    [classes.bufferBar2]: mode === 'buffer',
    [classes.primaryColorBar]: color === 'primary' && mode !== 'buffer',
    [classes.primaryColor]: color === 'primary' && mode === 'buffer',
    [classes.accentColorBar]: color === 'accent' && mode !== 'buffer',
    [classes.accentColor]: color === 'accent' && mode === 'buffer',
    [classes.indeterminateBar2]: mode === 'indeterminate' || mode === 'query'
  });
  const inlineStyles = { primary: {}, secondary: {} };
  const rootProps = {};

  if (mode === 'determinate') {
    if (value !== undefined) {
      inlineStyles.primary.transform = `scaleX(${value / 100})`;
      rootProps['aria-valuenow'] = Math.round(value);
    } else {
      warning(false, 'Material-UI: you need to provide a value property ' + 'when LinearProgress is in determinate mode.');
    }
  } else if (mode === 'buffer') {
    if (value !== undefined) {
      inlineStyles.primary.transform = `scaleX(${value / 100})`;
      inlineStyles.secondary.transform = `scaleX(${(valueBuffer || 0) / 100})`;
    } else {
      warning(false, 'Material-UI: you need to provide a value property when LinearProgress is in buffer mode.');
    }
  }

  return React.createElement(
    'div',
    _extends({ className: rootClassName }, rootProps, other),
    mode === 'buffer' ? React.createElement('div', { className: dashedClass }) : null,
    React.createElement('div', { className: primaryClassName, style: inlineStyles.primary }),
    mode === 'determinate' ? null : React.createElement('div', { className: secondaryClassName, style: inlineStyles.secondary })
  );
}

LinearProgress.defaultProps = {
  color: 'primary',
  mode: 'indeterminate'
};

export default withStyles(styles, { name: 'MuiLinearProgress' })(LinearProgress);