module Eco::API::UseCases::GraphQL::Samples::Location::Service
  module TreeDiff
    module Convertible
      module Inputable
        class << self
          def included(base)
            super(base)
            base.send :include, Eco::Data::Files
          end
        end

        include Eco::API::UseCases::GraphQL::Helpers::Base::CaseEnv

        IN_FILENAME  = /requested_tree\.csv/.freeze
        IN_FOLDER    = 'sftp'.freeze

        private

        def input_encoding
          options.dig(:input, :file, :encoding) || 'utf-8'
        end

        def input_file
          @input_file ||= (options.dig(:input, :file, :name) || newest_file).tap do |file|
            if file
              log(:info) { "Using input file '#{file}'" }
            else
              log(:warn) { "Could not find any input file" }
              exit(1)
            end
          end
        end

        def newest_file
          @newest_file ||= csv_files.last
        end

        #@note via Eco::Data::Files
        def csv_files
          self.class.csv_files(input_folder, regexp: input_file_pattern)
        end

        def input_file_pattern
          self.class::IN_FILENAME
        end

        def input_folder
          "#{config.active_enviro}/#{self.class::IN_FOLDER}"
        end
      end
    end
  end
end