module Bearcat
  class Client < Footrest::Client
    module Submissions

      def course_submissions(course, params={})
        get("/api/v1/courses/#{course.to_s}/students/submissions", params)
      end

      def section_submissions(section, params={})
        get("/api/v1/sections/#{section.to_s}/students/submissions", params)
      end

      def get_course_submissions(course, assignment, params={})
        get("/api/v1/courses/#{course.to_s}/assignments/#{assignment}/submissions", params)
      end

      def user_course_assignment_submission(course, assignment, user, params={})
        get("/api/v1/courses/#{course.to_s}/assignments/#{assignment.to_s}/submissions/#{user.to_s}", params)
      end

      def course_submission(course, assignment, params)
        post("/api/v1/courses/#{course}/assignments/#{assignment}/submissions", params)
      end

      def section_submission(section, assignment, params)
        post("/api/v1/sections/#{section}/assignments/#{assignment}/submissions", params)
      end

      def grade_course_submission(course, assignment, user, params)
        put("/api/v1/courses/#{course}/assignments/#{assignment}/submissions/#{user}", params)
      end

      def grade_section_submission(section, assignment, user, params)
        put("/api/v1/sections/#{section}/assignments/#{assignment}/submissions/#{user}", params)
      end

      def course_file_upload_submission(course, assignment, user, file_data, params={})
        file_upload_submission(course, assignment, user, file_data, params, type: :course)
      end

      def section_file_upload_submission(section, assignment, user, file_data, params={})
        file_upload_submission(section, assignment, user, file_data, params, type: :section)
      end

      def course_update_grades(course, assignment, params={})
        post("/api/v1/courses/#{course}/assignments/#{assignment}/submissions/update_grades", params)
      end

      def section_update_grades(section, assignment, params={})
        post("/api/v1/sections/#{section}/assignments/#{assignment}/submissions/update_grades", params)
      end

      protected

      # @param file_data One of an array of file_path strings or an array of Hashes, each being upload file params plus the file's path
      def file_upload_submission(type_id, assignment, user, file_data=nil, params={}, type:)
        raise ArgumentError, 'Invalid type' unless [:course, :section].include?(type)
        raise ArgumentError, 'Must provide either file paths or fully formed submission params' if params.dig(:submission, :file_ids).nil? && file_data.nil?

        params = params.with_indifferent_access
        sub_params = if params.dig(:submission, :file_ids).present?
                       {}
                     else
                       file_data = Array.wrap(file_data)
                       file_ids = file_data.map do |datum|
                         if datum.is_a?(Hash) && datum[:file_path].present?
                           # datum is a param hash for upload_file API plus the file_path
                           path = datum[:file_path]
                           upload_params = datum.except(:file_path)
                         else
                           # treat datum as a file_path string
                           path = datum
                           upload_params = params
                         end

                         response = upload_file("/api/v1/#{type}s/#{type_id}/assignments/#{assignment}/submissions/#{user}/files", path, upload_params)
                         response['id']
                       end

                       {
                         submission_type: 'online_upload',
                         file_ids: file_ids,
                       }
                     end
        sub_params.merge!(params[:submission]) if params[:submission].present?
        params[:submission] = sub_params
        send("#{type}_submission".to_sym, type_id, assignment, params)
      end

    end
  end
end