module Eco
  module API
    module Common
      module People
        class DefaultParsers
          class CSVParser < People::BaseParser

            def process
              @parsers.define_attribute(:csv, dependencies: @options) do |parser|
                parser.def_parser  do |data, deps|
                  arr_hash = []
                  CSV.parse(data, headers: true).each do |row|
                    row_hash = row.headers.uniq.each_with_object({}) do |attr, hash|
                      hash[attr] = row[attr]
                    end
                    arr_hash.push(row_hash)
                  end
                  arr_hash
                end.def_serializer do |array_hash, deps|
                  arr_rows = []
                  unless array_hash.empty?
                    header = array_hash.first.keys
                    arr_rows = array_hash.map do |csv_row|
                      CSV::Row.new(header, csv_row.values_at(*header))
                    end
                  end
                  CSV::Table.new(arr_rows).to_csv
                end
              end
            end

          end
        end
      end
    end
  end
end