# lib/tasks/quiz_stats.rake
namespace :quiz do
  desc "Show quiz statistics from Oct 17, 2025"
  task stats: :environment do
    results = QuizResult.where("created_at >= ?", Date.new(2025, 10, 17))

    total = results.count
    by_locale = results.group(:locale).count
    scores = results.group(:score).count
    avg_score = results.average(:score)

    # Calculate result categories
    questions = Node.at_depth(1).tmpl_article.viewable.ordered.to_a
    questions_count = questions.count
    result_categories = { "People" => 0, "Planet" => 0, "Balanced" => 0 }

    results.each do |qr|
      people_score = questions_count - qr.score
      score_diff = people_score - qr.score

      category = case
                 when score_diff >= 2
                   "People"
                 when score_diff <= -2
                   "Planet"
                 else
                   "Balanced"
                 end
      result_categories[category] += 1
    end

    puts "Quiz Results from Oct 17, 2025"
    puts "=" * 40
    puts "Total: #{total}"

    puts "\nBy locale:"
    by_locale.sort.each do |locale, count|
      locale_name = I18n.t(locale, scope: 'languages')
      puts "  #{locale_name}: #{count}"
    end

    puts "\nScore distribution:"
    scores.sort.each do |score, count|
      puts "  Score #{score}: #{count}"
    end

    puts "\nAverage score: #{avg_score&.round(2)}"

    puts "\nResult categories:"
    result_categories.each do |category, count|
      percentage = total > 0 ? (count.to_f / total * 100).round(1) : 0
      puts "  #{category}: #{count} (#{percentage}%)"
    end

    # Question by question breakdown

    puts "\n\nQuestion breakdown:"
    puts "=" * 40
    questions.each_with_index do |question, i|
      answers = Answer.where(node_id: question.id).where("created_at >= ?", Date.new(2025, 10, 17))
      answer_counts = answers.group(:value).count

      planet_answer = (i == 0 || i == 3) ? 0 : 1
      people_answer = (i == 0 || i == 3) ? 1 : 0

      planet_count = answer_counts[planet_answer] || 0
      people_count = answer_counts[people_answer] || 0
      total_answers = planet_count + people_count

      puts "\nQ#{i + 1}: #{question.title}"
      if total_answers > 0
        planet_pct = (planet_count.to_f / total_answers * 100).round(1)
        people_pct = (people_count.to_f / total_answers * 100).round(1)
        puts "  Planet: #{planet_count} (#{planet_pct}%)"
        puts "  People: #{people_count} (#{people_pct}%)"
      else
        puts "  No answers"
      end
    end
  end
end