module Scoring
  # Normalizza `score_states.data["period"]` (intero o etichetta "Q2" / "2° tempo").
  module PeriodData
    module_function

    def number_from(raw)
      case raw
      when Integer, Float
        value = raw.to_i
        value.positive? ? value : nil
      when String
        text = raw.strip
        return nil if text.empty?

        if (match = text.match(/\AQ(\d+)\z/i))
          match[1].to_i
        elsif (match = text.match(/\A(\d+)\s*°/))
          match[1].to_i
        elsif (value = text.to_i).positive?
          value
        end
      end
    end

    def normalize_hash!(data)
      number = number_from(data["period"])
      data["period"] = number if number&.positive?
      data["period"] = 1 unless data["period"].to_i.positive?
      data
    end
  end
end