module Bearcat
  class Client < Footrest::Client
    module OutcomeImports

      def import_outcomes(file_path, params={})
        params = params.with_indifferent_access
        params['attachment'] = Faraday::UploadIO.new(file_path, 'text/csv')
        url = "api/v1/#{outcome_import_context_slug(params)}"
        url += "group/#{params[:group]}/" if params[:group].present?
        params.delete(:group)
        post(url, params)
      end

      def outcome_import_status(id, params={})
        params = params.with_indifferent_access
        get("api/v1/#{outcome_import_context_slug(params)}#{id}", params)
      end

      def outcome_import_created_group_ids(id, params={})
        params = params.with_indifferent_access
        get("api/v1/#{outcome_import_context_slug(params)}#{id}/created_group_ids", params)
      end

      protected

      def outcome_import_context_slug(params)
        context_hash = params.select { |k, _| k == "account" || k == "course" }

        if context_hash.keys.count > 1
          raise ArgumentError, "cannot have account and course in params"
        elsif context_hash.empty?
          "accounts/self/outcome_imports/"
        else
          context_hash_key = context_hash.keys.first
          case context_hash_key
            when 'account'
              params.delete(:account)
              "accounts/#{context_hash[context_hash_key]}/outcome_imports/"
            when 'course'
              params.delete(:course)
              "courses/#{context_hash[context_hash_key]}/outcome_imports/"
          end
        end
      end

    end
  end
end