All files / app/assets/javascripts/diffs/utils file_reviews.js

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function getFileReviewsKey(mrPath) {
  return `${mrPath}-file-reviews`;
}
 
export function isFileReviewed(reviews, file) {
  const fileReviews = reviews[file.file_identifier_hash];
 
  return file?.id && fileReviews?.length ? new Set(fileReviews).has(file.id) : false;
}
 
export function reviewStatuses(files, reviews) {
  return files.reduce((flat, file) => {
    return {
      ...flat,
      [file.id]: isFileReviewed(reviews, file),
    };
  }, {});
}
 
export function getReviewsForMergeRequest(mrPath) {
  const reviewsForMr = localStorage.getItem(getFileReviewsKey(mrPath));
  let reviews = {};
 
  if (reviewsForMr) {
    try {
      reviews = JSON.parse(reviewsForMr);
    } catch (err) {
      reviews = {};
    }
  }
 
  return reviews;
}
 
export function setReviewsForMergeRequest(mrPath, reviews) {
  localStorage.setItem(getFileReviewsKey(mrPath), JSON.stringify(reviews));
 
  return reviews;
}
 
export function reviewable(file) {
  return Boolean(file.id) && Boolean(file.file_identifier_hash);
}
 
export function markFileReview(reviews, file, reviewed = true) {
  const usableReviews = { ...reviews };
  const updatedReviews = usableReviews;
  let fileReviews;
 
  if (reviewable(file)) {
    fileReviews = new Set(usableReviews[file.file_identifier_hash] || []);
 
    if (reviewed) {
      fileReviews.add(file.id);
      fileReviews.add(`hash:${file.file_hash}`);
    } else {
      fileReviews.delete(file.id);
      fileReviews.delete(`hash:${file.file_hash}`);
    }
 
    updatedReviews[file.file_identifier_hash] = Array.from(fileReviews);
 
    if (updatedReviews[file.file_identifier_hash].length === 0) {
      delete updatedReviews[file.file_identifier_hash];
    }
  }
 
  return updatedReviews;
}