module Admin::AnalyticsHelper

  # Colours a bar by what the answer does to the player's score, so a stage
  # reads at a glance: green = they made the good call, red = they didn't.
  def answer_tone(node)
    case node.template
    when "good_answer" then "positive"
    when "bad_answer"  then "negative"
    when "chance"      then "neutral"
    end
  end


  def band_tone(band)
    { best: "positive", balanced: "neutral", worst: "negative" }[band.to_sym]
  end


  def format_duration(seconds)
    return "—" if seconds.blank? || seconds.to_i.zero?

    seconds = seconds.to_i
    minutes, seconds = seconds.divmod(60)
    minutes.zero? ? "#{seconds}s" : "#{minutes}m #{seconds}s"
  end
end