require 'dmao_api'
require 'dmao/api/person'
require 'time'
require 'dmao/ingesters/generic/ingester'
require 'dmao/ingesters/errors/generic_ingester'
require 'dmao/ingesters/errors/empty_attributes'
require 'dmao/ingesters/errors/ingest_person_error'

module DMAO
  module Ingesters
    module Generic

      class PeopleIngester < Ingester

        ENTITY = DMAO::API::Person
        ENTITY_ERROR = DMAO::Ingesters::Errors::IngestPersonError
        ENTITY_ERROR_MESSAGE = "Invalid person details"

        def ingest_person attributes={}
          ingest_entity attributes
        end

        private

        def add_entity attributes
          add_person attributes
        end

        def update_entity id, attributes
          update_person id, attributes
        end

        def add_person attributes

          begin
            DMAO::API::Person.create attributes
          rescue DMAO::API::Errors::InstitutionNotFound
            raise DMAO::Ingesters::Errors::IngestPersonError.new("Institution not found, cannot ingest person to non-existent institution")
          rescue DMAO::API::Errors::InvalidPerson => e
            parse_unprocessable_errors(e.errors)
          end

        end

        def update_person id, attributes

          begin
            DMAO::API::Person.update id, attributes
          rescue DMAO::API::Errors::PersonNotFound
            raise DMAO::Ingesters::Errors::IngestPersonError.new("Person not found, cannot update person that does not exist")
          rescue DMAO::API::Errors::InvalidPerson => e
            parse_unprocessable_errors(e.errors)
          end

        end

      end

    end
  end
end