SettRaziel/ruby_visualization

module TerminalVis

  # Parent module which holdes the classes dealing with reading and validating
  # the provided input parameters
  module Parameter

    # Parameter repository to store the valid parameters of the script.
    # {#initialize} gets the provided parameters and fills a hash which
    # grants access to the provided parameters and arguments.
    class ParameterRepository < RubyUtils::Parameter::BaseParameterRepository

      private

      # method to read further argument and process it depending on its content
      # @param [String] arg the given argument
      def process_argument(arg)
        case arg
          when *@mapping[:all] then create_argument_entry(:all)
          when *@mapping[:coord] then create_two_argument_entry(:coord)
          when *@mapping[:delta] then create_two_argument_entry(:delta)
          when *@mapping[:extreme] then @parameters[:extreme] = true
          when *@mapping[:index] then create_argument_entry(:index)
          when *@mapping[:meta] then @parameters[:meta] = true
          when *@mapping[:option] then create_argument_entry(:option)
          when *@mapping[:range] then create_two_argument_entry(:range)
          when *@mapping[:section] then create_two_argument_entry(:section)
          when *@mapping[:time] then create_two_argument_entry(:time)
          else
            raise_invalid_parameter(arg)
        end
      end

      # method to define the input string values that will match a given paramter symbol
      def define_mapping
        @mapping[:all]     = ["-a", "--all"]
        @mapping[:coord]   = ["-c", "--coord"]
        @mapping[:delta]   = ["-d", "--delta"]
        @mapping[:extreme] = ["-e", "--extreme"]
        @mapping[:index]   = ["-i", "--index"]
        @mapping[:meta]    = ["-m", "--meta"]
        @mapping[:option]  = ["-o", "--option"]
        @mapping[:range]   = ["-r", "--range"]
        @mapping[:section] = ["-s", "--section"]
        @mapping[:time]    = ["-t", "--time"]      
      end

    end

  end

end