require 'csv'



namespace :ios do
  desc "converts a file of translations into lproj folders per each translation."
  task :generate_translation_folders, [:filename] do |t, args|

    filename = args[:filename] || 'translations.csv'
    translation_file_array = CSV.read(filename)

    keys = translation_file_array.first[1..-1]

    translations = translation_file_array[1..-1]

    translations.each do |row|
      language_string = row[0]
      localized_values_array = row[1..-1]

      create_folder(translation_folder_name(language_string))

      Dir.chdir(translation_folder_name(language_string)) do
        generate_translation_file("Localizable.strings", keys, localized_values_array)
      end

    end


  end
end


def translation_folder_name(language_string)
  "#{language_string}.lproj"
end

def create_folder(folder_name_string)
  `mkdir #{folder_name_string}`
end

def generate_translation_file(filename, keys_array, localized_values_array)
  File.open(filename, 'w'){|file| file.write(' ')}
  keys_array.count.times do |i|
    key = keys_array[i]
    value = localized_values_array[i]
    File.open(filename, 'a') { |file| file.write("\"#{key}\"=\"#{value}\";\n") }
  end
end