# frozen_string_literal: true

module Sessions
  class SetMinQuality
    def initialize(session, preset:)
      @session = session
      @preset = preset.to_s.strip
    end

    def call
      id = normalize
      unless SelectQuality.allowed_min_ids(@session.quality_preset).include?(id)
        raise ArgumentError, "Qualità minima non valida"
      end

      return @session if @session.min_quality_preset == id

      @session.update!(min_quality_preset: id)
      @session.stream_events.create!(
        event_type: "quality_changed",
        occurred_at: Time.current,
        metadata: { "min_quality_preset" => id }
      )
      SessionChannel.broadcast_message(
        @session,
        { type: "command", action: "set_min_quality", min_quality_preset: id }
      )
      @session
    end

    private

    def normalize
      return SelectQuality::AUTO_ID if @preset.blank? || @preset == SelectQuality::AUTO_ID

      @preset
    end
  end
end