Ruby - Day 3

acts_as_csv.rb

class CsvRow
  def initialize(headers, row)
    @headers = headers
    @row = row
  end

  def method_missing name
    unless @headers.index(name.to_s).nil?
      @row[@headers.index(name.to_s)]
    end
  end

end

class ActsAsCsv

  def self.acts_as_csv

    define_method 'read' do
      file = File.new(self.class.to_s.downcase + ".txt")
      @headers = file.gets.chomp.split(', ')

      file.each do |row|
        @result << row.chomp.split(', ')
      end
    end

    define_method 'headers' do
      @headers
    end

    define_method 'csv_contents' do
      @result
    end

    define_method 'initialize' do
      @result = []
      read
    end

    define_method 'each' do |&block|
      @result.each { |row| block.call CsvRow.new(@headers, row) }
    end

  end

end

class RubyCsv < ActsAsCsv
  acts_as_csv
end

m = RubyCsv.new
puts m.headers.inspect
puts m.csv_contents.inspect

m.each { |row| puts row.one}