class GekanatorQuestionsController < ApplicationController
  def index
    return head :not_found unless current_user&.admin?

    questions = GekanatorQuestion.accepted.order(priority_weight: :desc, id: :asc)

    render json: {
      questions: questions.map { |question| question_json(question) }
    }
  end

  private

  def question_json question
    {
      id: question_id_for(question),
      text: question.text,
      kind: question.kind,
      condition: condition_json(question.condition),
      source: question.source,
      priority_weight: question.priority_weight
    }
  end

  def question_id_for question
    condition = condition_json(question.condition).deep_symbolize_keys

    case condition[:type]
    when 'tag'
      "tag:#{ condition[:key] }"
    when 'source'
      "source:#{ condition[:host] }"
    when 'original-year'
      "original-year:#{ condition[:year] }"
    when 'original-month'
      "original-month:#{ condition[:month] }"
    when 'original-month-day'
      "original-month-day:#{ condition[:monthDay] || condition[:month_day] }"
    when 'title-length-greater-than'
      "title:length-greater-than:#{ condition[:length] }"
    when 'title-has-ascii'
      'title:ascii'
    else
      "catalog:#{ question.id }"
    end
  end

  def condition_json condition
    json = condition.deep_dup.as_json

    if json['type'] == 'original-month-day' && json['monthDay'].blank?
      json['monthDay'] = json.delete('month_day')
    end

    json
  end
end