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var Rembrandt = require('rembrandt/build/browser')

import Rembrandt from 'rembrandt'

const rembrandt = new Rembrandt({
  // `imageA` and `imageB` can be either Strings (file path on node.js,
  // public url on Browsers) or Buffers
  imageA: '/path/to/imageA',
  imageB: fs.readFileSync('/path/to/imageB'),

  // Needs to be one of Rembrandt.THRESHOLD_PERCENT or Rembrandt.THRESHOLD_PIXELS
  thresholdType: Rembrandt.THRESHOLD_PERCENT,

  // The maximum threshold (0...1 for THRESHOLD_PERCENT, pixel count for THRESHOLD_PIXELS
  maxThreshold: 0.01,

  // Maximum color delta (0...1):
  maxDelta: 0.02,

  // Maximum surrounding pixel offset
  maxOffset: 0,

  renderComposition: true, // Should Rembrandt render a composition image?
  compositionMaskColor: Rembrandt.Color.RED // Color of unmatched pixels
})

// Run the comparison
rembrandt.compare()
  .then(function (result) {
    console.log('Passed:', result.passed)
    console.log('Pixel Difference:', result.differences, 'Percentage Difference', result.percentageDifference, '%')
    console.log('Composition image buffer:', result.compositionImage)

    // Note that `compositionImage` is an Image when Rembrandt.js is run in the browser environment
  })
  .catch((e) => {
    console.error(e)
  })