matrix_mixer

class MatrixMixer
  def sorter(matrix, instructions)
    instructions.split("\n").each do |instruction|
      line_or_row = instruction.split(":")[0].split(" ")[0]
      line_row_affected = instruction.split(":")[0].split(" ")[1].to_i
      command = instruction.split(":")[1]
      aux_arr = []

      if line_or_row == "COLUNA"
        (0..matrix.length() - 1).each do |linha|
          element = matrix[linha][line_row_affected]
          if command == "ÍMPARES"
            if element.is_a? Integer
              if not element.even?
                aux_arr.push(element)
              end
            end
            if linha == matrix.length() - 1
              aux_arr.sort!
              index = 0
              (0..(matrix.length() - 1)).each do |linha|
                element = matrix[linha][line_row_affected]
                if element.is_a? Integer
                  if not element.even?
                    matrix[linha][line_row_affected] = aux_arr[index]
                    index += 1
                  end
                end
              end
            end

          elsif command == "PARES"
            if element.is_a? Integer
              if element.even?
                aux_arr.push(element)
              end
            end
            if linha == matrix.length() - 1
              aux_arr.sort!
              index = 0
              (0..(matrix.length() - 1)).each do |linha|
                element = matrix[linha][line_row_affected]
                if element.is_a? Integer
                  if element.even?
                    matrix[linha][line_row_affected] = aux_arr[index]
                    index += 1
                  end
                end
              end
            end

          elsif command == "ALFABETO"
            if element == nil
              next
            end
            if not element.is_a? Integer
              aux_arr.push(element)
            end
            if linha == matrix.length() - 1
              aux_arr.sort!
              index = 0
              (0..(matrix.length() - 1)).each do |linha|
                element = matrix[linha][line_row_affected]
                if element == nil
                  next
                end
                if not element.is_a? Integer
                  matrix[linha][line_row_affected] = aux_arr[index]
                  index += 1
                end
              end
            end
          end
        end

      elsif line_or_row == "LINHA"
        if command == "ÍMPARES"
          aux_arr = matrix[line_row_affected].select {|element| element.is_a? Integer}.select { |element| not element.even? }.sort
          index = 0
          (0..(matrix[line_row_affected].length() - 1)).each do |coluna|
            element = matrix[line_row_affected][coluna]
            if element.is_a? Integer
              if not element.even?
                matrix[line_row_affected][coluna] = aux_arr[index]
                index += 1
              end
            end
          end

        elsif command == "PARES"
          aux_arr = matrix[line_row_affected].select { |element| element.is_a? Integer }.select { |element| element.even? }.sort
          index = 0
          (0..(matrix[line_row_affected].length() - 1)).each do |coluna|
            element = matrix[line_row_affected][coluna]
            if element.is_a? Integer
              if element.even?
                matrix[line_row_affected][coluna] = aux_arr[index]
                index += 1
              end
            end
          end

        elsif command == "ALFABETO"
          aux_arr = matrix[line_row_affected].select { |element| not element.is_a? Integer }.sort
          index = 0
          (0..(matrix[line_row_affected].length() - 1)).each do |coluna|
            element = matrix[line_row_affected][coluna]
            if not element.is_a? Integer
              matrix[line_row_affected][coluna] = aux_arr[index]
              index += 1
            end
          end
        end
      end
    end
    matrix
  end
end