class ActionView::MissingTemplate

def corrections
  candidates = paths.flat_map(&:all_template_paths).uniq
  if partial
    candidates.select!(&:partial?)
  else
    candidates.reject!(&:partial?)
  end
  # Group by possible prefixes
  files_by_dir = candidates.group_by(&:prefix)
  files_by_dir.transform_values! do |files|
    files.map do |file|
      # Remove prefix
      File.basename(file.to_s)
    end
  end
  # No suggestions if there's an exact match, but wrong details
  if prefixes.any? { |prefix| files_by_dir[prefix]&.include?(path) }
    return []
  end
  cached_distance = Hash.new do |h, args|
    h[args] = -DidYouMean::Jaro.distance(*args)
  end
  results = Results.new(6)
  files_by_dir.keys.index_with do |dirname|
    prefixes.map do |prefix|
      cached_distance[[prefix, dirname]]
    end.min
  end.sort_by(&:last).each do |dirname, dirweight|
    # If our directory's score makes it impossible to find a better match
    # we can prune this search branch.
    next unless results.should_record?(dirweight - 1.0)
    files = files_by_dir[dirname]
    files.each do |file|
      fileweight = cached_distance[[path, file]]
      score = dirweight + fileweight
      results.add(File.join(dirname, file), score)
    end
  end
  if partial
    results.to_a.map { |res| res.sub(%r{_([^/]+)\z}, "\\1") }
  else
    results.to_a
  end
end

def initialize(paths, path, prefixes, partial, details, *)
  if partial && path.present?
    path = path.sub(%r{([^/]+)$}, "_\\1")
  end
  @path = path
  @paths = paths
  @prefixes = Array(prefixes)
  @partial = partial
  template_type = if partial
    "partial"
  elsif /layouts/i.match?(path)
    "layout"
  else
    "template"
  end
  searched_paths = @prefixes.map { |prefix| [prefix, path].join("/") }
  out  = "Missing #{template_type} #{searched_paths.join(", ")} with #{details.inspect}.\n\nSearched in:\n"
  out += paths.compact.map { |p| "  * #{p.to_s.inspect}\n" }.join
  super out
end