# frozen_string_literal: true

#
# Copyright (C) 2024 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.

module Lti::Messages
  # A "factory" class that builds an ID Token (JWT) to be used in
  # 1EdTech LTI Asset Processor Asset Processor Settings Request launches.
  #
  # This class relies on a another class (LtiAdvantage::Messages::AssetProcessorSettingsRequest)
  # to model the data in the JWT body and produce a signature.
  class AssetProcessorSettingsRequest < JwtMessage
    def initialize(tool:, context:, user:, expander:, return_url:, asset_processor:, opts: {})
      super(tool:, context:, user:, expander:, return_url:, opts:)
      raise ArgumentError, "asset_processor is required" unless asset_processor

      @asset_processor = asset_processor
      @message = LtiAdvantage::Messages::AssetProcessorSettingsRequest.new
    end

    def generate_post_payload_message
      add_activity_claim!(@asset_processor.assignment)
      super(validate_launch: true)
    end

    def unexpanded_custom_parameters
      super.merge(@asset_processor.custom || {})
    end
  end
end
