discourse-custom-wizard/app/controllers/custom_wizard/admin/submissions.rb

# frozen_string_literal: true
class CustomWizard::AdminSubmissionsController < CustomWizard::AdminController
  skip_before_action :preload_json, :check_xhr, only: [:download]
  before_action :find_wizard, except: [:index]

  def index
    render json: ActiveModel::ArraySerializer.new(
      CustomWizard::Wizard.list(current_user),
      each_serializer: CustomWizard::BasicWizardSerializer
    )
  end

  def show
    render_json_dump(
      wizard: CustomWizard::BasicWizardSerializer.new(@wizard, root: false),
      submissions: ActiveModel::ArraySerializer.new(
        submission_list.submissions,
        each_serializer: CustomWizard::SubmissionSerializer
      ),
      total: submission_list.total
    )
  end

  def download
    content = ActiveModel::ArraySerializer.new(
      submission_list.submissions,
      each_serializer: CustomWizard::SubmissionSerializer
    )

    send_data content.to_json,
      filename: "#{Discourse.current_hostname}-wizard-submissions-#{@wizard.name}.json",
      content_type: "application/json",
      disposition: "attachment"
  end

  protected

  def submission_list
    CustomWizard::Submission.list(@wizard, page: params[:page].to_i)
  end
end