sanger/limber

<%
  csv_rows = [
    ['Plate Barcode', @plate.human_barcode.to_s],
    [],
    [nil, '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12']
  ]
  plate_row_headers = ['A','B','C','D','E','F','G','H']
  well_matrix = Array.new(@plate.number_of_rows)
  well_matrix.map! { Array.new(@plate.number_of_columns + 1, 'empty') }

  # add row headers to matrix
  plate_row_headers.each do |row_header|
    row_index = plate_row_headers.index(row_header)
    well_matrix[row_index][0] = row_header
  end

  # fetch tube barcode for each well in matrix
  @plate.wells_in_columns.each do |well|
    well_name = well.position['name']
    well_row_letter = well_name.slice(0..0)
    row_index = plate_row_headers.index(well_row_letter)
    well_col_num = well_name.slice(1..-1).to_i

    unless well.empty?
      well_matrix[row_index][well_col_num] = well.upstream_tubes.first.human_barcode
    end
  end

  @plate.number_of_rows.times do |row|
    csv_rows << well_matrix[row]
  end
%>
<%= csv_rows.map(&:to_csv).join %>