def detect_groups
      if @config.scan_mode == :grid
        scanner = FloodScan.new(@file.dup)
        @groups.each_pair do |_label, group|
          group_center = group.expected_coordinates.center
          x = group_center[:x]
          y = group_center[:y]
          width = group.expected_coordinates.width
          height = group.expected_coordinates.height
          block = scanner.scan(Magick::Point.new(x, y), width, height)
          if !block.empty?
            group.coordinates = Coordinates.new(block)
            marks_blocks = find_marks_grid(group)
            marks_blocks.each do |mark|
              mark_width  = ImageUtils.calc_width(mark[:x1], mark[:x2])
              mark_height = ImageUtils.calc_height(mark[:y1], mark[:y2])
              mark_file = @original_file.crop(mark[:x1], mark[:y1], mark_width, mark_height)
              o_mark = Mark.new group: group,
                                coordinates: coordinate(mark),
                                image_str: ImageUtils.export_file_to_str(mark_file),
                                line: mark[:line]

              group.marks[mark[:line]] << o_mark
            end
          else
            @groups_not_detected << group.label
          end
        end
      else
        file_str = ImageUtils.export_file_to_str(@file)
        original_file_str = ImageUtils.export_file_to_str(@original_file)
        incorrect_bubble_line_found = Hash.new { |hash, key| hash[key] = [] }
        bubbles_adjusted = []
        incorrect_expected_lines = false

        @groups.each_pair do |_label, group|
          next unless group.expected_coordinates.any?

          line = 0
          group_center = group.expected_coordinates.center

          block = find_block_marks(file_str, group_center[:x], group_center[:y], group)
          next unless block

          group.coordinates = Coordinates.new(block)
          marks_blocks = find_marks(original_file_str, group)
          marks_blocks.sort! { |a, b| a[:y1] <=> b[:y1] }
          mark_ant = nil
          marks_blocks.each do |mark|
            mark_width  = ImageUtils.calc_width(mark[:x1], mark[:x2])
            mark_height = ImageUtils.calc_height(mark[:y1], mark[:y2])

            next unless mark_width >= group.mark_width_with_down_tolerance &&
                        mark_height >= group.mark_height_with_down_tolerance

            mark_positions = mark[:y1] - 10..mark[:y1] + 10
            line += 1 unless mark_ant && mark_positions.include?(mark_ant[:y1])
            mark[:line] = line
            mark_ant = mark
          end

          marks_blocks.delete_if { |m| m[:line].nil? }
          marks_blocks.sort_by! { |a| [a[:line], a[:x1]] }

          mark_ant = nil
          marks_blocks.each do |mark|
            if mark_ant && mark_ant[:line] == mark[:line]
              mark_ant_center = ImageUtils.image_center(mark_ant)
              mark_center     = ImageUtils.image_center(mark)
              if (mark_ant_center[:x] - mark_center[:x]).abs < 10
                mark[:conflict] = true
                mark[:conflicting_mark] = mark_ant
              else
                mark_ant = mark
              end
            else
              mark_ant = mark
            end
          end
          marks_blocks.delete_if { |m| m[:conflict] }

          first_position = 0
          elements_position_count = 0
          marks_blocks.map { |m| m[:line] }.each do |dash|
            marks = marks_blocks.select { |m| m[:line] == dash }
            if marks.count == group.marks_options.count
              first_position += marks.first[:x1]
              elements_position_count += 1
            end
          end

          if elements_position_count.positive?
            first_position /= elements_position_count
            distance = group.distance_between_marks * (group.marks_options.count - 1)
            last_position = first_position + distance
            marks_blocks.delete_if do |mark|
              mark[:x1] < first_position - 10 ||
                mark[:x1] > last_position + 10
            end

            marks_blocks.map { |m| m[:line] }.each do |dash|
              loop do
                reprocess = false
                marks = marks_blocks.select { |m| m[:line] == dash }
                marks.each_with_index do |current_mark, index|
                  if index.zero?
                    first_mark_position = first_position - 5..first_position + 5
                    unless first_mark_position.include?(current_mark[:x1])
                      new_mark = { x1: first_position,
                                   x2: first_position + group.mark_width,
                                   y1: current_mark[:y1],
                                   y2: current_mark[:y1] + group.mark_height,
                                   line: dash }
                      marks_blocks << new_mark
                      marks_blocks.sort_by! { |a| [a[:line], a[:x1]] }
                      bubbles_adjusted << new_mark
                      reprocess = true
                      break
                    end
                  end
                  next_mark = marks[index + 1]
                  distance = 0
                  distance = next_mark[:x1] - current_mark[:x1] if next_mark
                  next unless distance > group.distance_between_marks + 10 ||
                              next_mark.nil? && index + 1 < group.marks_options.count

                  new_x1 = current_mark[:x1] + group.distance_between_marks
                  new_mark = { x1: new_x1,
                               x2: new_x1 + group.mark_width,
                               y1: current_mark[:y1],
                               y2: current_mark[:y1] + group.mark_height,
                               line: dash }
                  marks_blocks << new_mark
                  marks_blocks.sort_by! { |a| [a[:line], a[:x1]] }
                  bubbles_adjusted << new_mark
                  reprocess = true
                  break
                end
                break unless reprocess
              end
            end

          end

          marks_blocks.each do |mark|
            mark_width  = ImageUtils.calc_width(mark[:x1], mark[:x2])
            mark_height = ImageUtils.calc_height(mark[:y1], mark[:y2])
            mark_file = @original_file.crop(mark[:x1], mark[:y1], mark_width, mark_height)
            o_mark = Mark.new group: group,
                              coordinates: coordinate(mark),
                              image_str: ImageUtils.export_file_to_str(mark_file),
                              line: mark[:line]
            group.marks[mark[:line]] << o_mark if mark[:line] <= group.expected_lines
          end

          incorrect_expected_lines = group.incorrect_expected_lines

          group.marks.each_pair do |dash, marks|
            if marks.count != group.marks_options.count
              incorrect_bubble_line_found[group.label.to_sym] << dash
            end
          end
        end
        @groups_detected = true
        if incorrect_bubble_line_found.any? || bubbles_adjusted.any? || incorrect_expected_lines
          raise_watcher :incorrect_group_watcher,
                    incorrect_expected_lines, incorrect_bubble_line_found, bubbles_adjusted.flatten
        end
      end
    end
def detect_groups
      if @config.scan_mode == :grid
        scanner = FloodScan.new(@file.dup)
        @groups.each_pair do |_label, group|
          group_center = group.expected_coordinates.center
          x = group_center[:x]
          y = group_center[:y]
          width = group.expected_coordinates.width
          height = group.expected_coordinates.height
          block = scanner.scan(Magick::Point.new(x, y), width, height)
          if !block.empty?
            group.coordinates = Coordinates.new(block)
            marks_blocks = find_marks_grid(group)
            marks_blocks.each do |mark|
              mark_width  = ImageUtils.calc_width(mark[:x1], mark[:x2])
              mark_height = ImageUtils.calc_height(mark[:y1], mark[:y2])
              mark_file = @original_file.crop(mark[:x1], mark[:y1], mark_width, mark_height)
              o_mark = Mark.new group: group,
                                coordinates: coordinate(mark),
                                image_str: ImageUtils.export_file_to_str(mark_file),
                                line: mark[:line]

              group.marks[mark[:line]] << o_mark
            end
          else
            @groups_not_detected << group.label
          end
        end
      else
        file_str = ImageUtils.export_file_to_str(@file)
        original_file_str = ImageUtils.export_file_to_str(@original_file)
        incorrect_bubble_line_found = Hash.new { |hash, key| hash[key] = [] }
        bubbles_adjusted = []
        incorrect_expected_lines = false

        @groups.each_pair do |_label, group|
          next unless group.expected_coordinates.any?

          line = 0
          group_center = group.expected_coordinates.center

          block = find_block_marks(file_str, group_center[:x], group_center[:y], group)
          next unless block

          group.coordinates = Coordinates.new(block)
          marks_blocks = find_marks(original_file_str, group)
          marks_blocks.sort! { |a, b| a[:y1] <=> b[:y1] }
          mark_ant = nil
          marks_blocks.each do |mark|
            mark_width  = ImageUtils.calc_width(mark[:x1], mark[:x2])
            mark_height = ImageUtils.calc_height(mark[:y1], mark[:y2])

            next unless mark_width >= group.mark_width_with_down_tolerance &&
                        mark_height >= group.mark_height_with_down_tolerance

            mark_positions = mark[:y1] - 10..mark[:y1] + 10
            line += 1 unless mark_ant && mark_positions.include?(mark_ant[:y1])
            mark[:line] = line
            mark_ant = mark
          end

          marks_blocks.delete_if { |m| m[:line].nil? }
          marks_blocks.sort_by! { |a| [a[:line], a[:x1]] }

          mark_ant = nil
          marks_blocks.each do |mark|
            if mark_ant && mark_ant[:line] == mark[:line]
              mark_ant_center = ImageUtils.image_center(mark_ant)
              mark_center     = ImageUtils.image_center(mark)
              if (mark_ant_center[:x] - mark_center[:x]).abs < 10
                mark[:conflict] = true
                mark[:conflicting_mark] = mark_ant
              else
                mark_ant = mark
              end
            else
              mark_ant = mark
            end
          end
          marks_blocks.delete_if { |m| m[:conflict] }

          first_position = 0
          elements_position_count = 0
          marks_blocks.map { |m| m[:line] }.each do |dash|
            marks = marks_blocks.select { |m| m[:line] == dash }
            if marks.count == group.marks_options.count
              first_position += marks.first[:x1]
              elements_position_count += 1
            end
          end

          if elements_position_count.positive?
            first_position /= elements_position_count
            distance = group.distance_between_marks * (group.marks_options.count - 1)
            last_position = first_position + distance
            marks_blocks.delete_if do |mark|
              mark[:x1] < first_position - 10 ||
                mark[:x1] > last_position + 10
            end

            marks_blocks.map { |m| m[:line] }.each do |dash|
              loop do
                reprocess = false
                marks = marks_blocks.select { |m| m[:line] == dash }
                marks.each_with_index do |current_mark, index|
                  if index.zero?
                    first_mark_position = first_position - 5..first_position + 5
                    unless first_mark_position.include?(current_mark[:x1])
                      new_mark = { x1: first_position,
                                   x2: first_position + group.mark_width,
                                   y1: current_mark[:y1],
                                   y2: current_mark[:y1] + group.mark_height,
                                   line: dash }
                      marks_blocks << new_mark
                      marks_blocks.sort_by! { |a| [a[:line], a[:x1]] }
                      bubbles_adjusted << new_mark
                      reprocess = true
                      break
                    end
                  end
                  next_mark = marks[index + 1]
                  distance = 0
                  distance = next_mark[:x1] - current_mark[:x1] if next_mark
                  next unless distance > group.distance_between_marks + 10 ||
                              next_mark.nil? && index + 1 < group.marks_options.count

                  new_x1 = current_mark[:x1] + group.distance_between_marks
                  new_mark = { x1: new_x1,
                               x2: new_x1 + group.mark_width,
                               y1: current_mark[:y1],
                               y2: current_mark[:y1] + group.mark_height,
                               line: dash }
                  marks_blocks << new_mark
                  marks_blocks.sort_by! { |a| [a[:line], a[:x1]] }
                  bubbles_adjusted << new_mark
                  reprocess = true
                  break
                end
                break unless reprocess
              end
            end

          end

          marks_blocks.each do |mark|
            mark_width  = ImageUtils.calc_width(mark[:x1], mark[:x2])
            mark_height = ImageUtils.calc_height(mark[:y1], mark[:y2])
            mark_file = @original_file.crop(mark[:x1], mark[:y1], mark_width, mark_height)
            o_mark = Mark.new group: group,
                              coordinates: coordinate(mark),
                              image_str: ImageUtils.export_file_to_str(mark_file),
                              line: mark[:line]
            group.marks[mark[:line]] << o_mark if mark[:line] <= group.expected_lines
          end

          incorrect_expected_lines = group.incorrect_expected_lines

          group.marks.each_pair do |dash, marks|
            if marks.count != group.marks_options.count
              incorrect_bubble_line_found[group.label.to_sym] << dash
            end
          end
        end
        @groups_detected = true
        if incorrect_bubble_line_found.any? || bubbles_adjusted.any? || incorrect_expected_lines
          raise_watcher :incorrect_group_watcher,
                    incorrect_expected_lines, incorrect_bubble_line_found, bubbles_adjusted.flatten
        end
      end
    end
rubocop:enable Metrics/MethodLength
 rubocop:enable Metrics/CyclomaticComplexity
 rubocop:enable Metrics/PerceivedComplexity
 rubocop:disable Metrics/MethodLength
 rubocop:disable Metrics/CyclomaticComplexity
 rubocop:disable Metrics/PerceivedComplexity
 rubocop:disable Metrics/BlockNesting