class Player < ApplicationRecord
  # progress shape:
  # { "1" => { "answer_id" => 42, "result_id" => 99 }, "2" => { ... } }

  def record_answer(stage, answer_id)
    stage_data(stage)["answer_id"] = answer_id
    save
  end

  def record_result(stage, result_id)
    stage_data(stage)["result_id"] = result_id
    save
  end

  def answer_id_for(stage)
    progress[stage.to_s]&.dig("answer_id")
  end

  def result_id_for(stage)
    progress[stage.to_s]&.dig("result_id")
  end


private

  def stage_data(stage)
    progress[stage.to_s] ||= {}
  end
end