module Ecoportal
  module API
    class V1
      class Person < Common::BaseModel
        passthrough :id, :external_id, :name, :email, :supervisor_id, :subordinates, to: :doc

        def supervisor(client)
          return @supervisor if defined?(@supervisor)
          return @supervisor = nil if supervisor_id.nil?
          @supervisor = client.people.get(supervisor_id).result
        end

        def supervisor=(person)
          self.supervisor_id = person.id
        end

        def as_json
          super.merge "details" => details&.as_json
        end

        def details
          return @details if defined?(@details)
          return @details = nil if doc["details"].nil?
          @details = person_details_class.new(doc["details"])
        end

        def details=(value)
          case value
          when NilClass
            doc["details"] = nil
          when person_details_class
            doc["details"] = value.as_json
          when Hash
            doc["details"] = value.slice("schema_id", "fields")
          else
            raise "Invalid set on details: Need nil, PersonDetails or Hash; got #{value.class}"
          end
          remove_instance_variable("@details") if defined?(@details)
          details.tap do |details|
            # When reassigning details, mark the whole thing as dirty
            details&.instance_variable_set("@original_doc", {})
          end
        end

        def add_details(schema_or_id)
          person_details_class.new.tap do |new_details|
            case schema_or_id
            when person_schema_class
              schema_or_id.initialize_details(new_details)
            when String
              new_details.schema_id = schema_or_id
            end
            self.details = new_details
            # Patch out static data from as_update
            @original_doc["details"] = {
              "fields" => JSON.parse(doc["details"]["fields"].to_json)
            }
          end
          self.details.tap do |details|
            # Patch out static data from as_update
            original = details.instance_variable_get("@original_doc")
            original["fields"] = JSON.parse(doc["details"]["fields"].to_json)
          end
        end

        private

        def person_schema_class
          V1::PersonSchema
        end

        def person_details_class
          V1::PersonDetails
        end
      end
    end
  end
end