module Eco
  class CLI
    class Config
      class PeopleFilters
        attr_reader :core_config

        def initialize(core_config:)
          @core_config = core_config
          @filters     = {}
        end

        def add(option)
          raise "Missing block to define the filters builder" unless block_given?
          callback = Proc.new
          [option].flatten.compact.each do |opt|
            @filters[opt] = callback
          end
          self
        end

        def process(io:)
          unless io && io.is_a?(Eco::API::UseCases::BaseIO)
            raise "You need to provide Eco::API::UseCases::BaseIO object. Given: #{io.class}"
          end

          io = io.new(type: :transform)
          @filters.each do |arg, callback|
            if SCR.get_arg(arg)
              io = io.new(people: callback.call(*io.params))
            end
          end
          io.people
        end

      end
    end
  end
end