@uppy/status-bar/lib/calculateProcessingProgress.js

A progress bar for Uppy, with many bells and whistles.

export default function calculateProcessingProgress(files) {
  const values = [];
  let mode = 'indeterminate';
  let message;
  for (const {
    progress
  } of Object.values(files)) {
    const {
      preprocess,
      postprocess
    } = progress;
    // In the future we should probably do this differently. For now we'll take the
    // mode and message from the first file…
    if (message == null && (preprocess || postprocess)) {
      ;
      ({
        mode,
        message
      } = preprocess || postprocess);
    }
    if ((preprocess == null ? void 0 : preprocess.mode) === 'determinate') values.push(preprocess.value);
    if ((postprocess == null ? void 0 : postprocess.mode) === 'determinate') values.push(postprocess.value);
  }
  const value = values.reduce((total, progressValue) => {
    return total + progressValue / values.length;
  }, 0);
  return {
    mode,
    message,
    value
  };
}