namespace :matches do
  desc "Pulizia bozze abbandonate e sessioni idle obsolete (hub coach). DRY_RUN=1 per anteprima."
  task cleanup_stale: :environment do
    dry = ENV["DRY_RUN"] == "1"
    cutoff_abandoned = ENV.fetch("ABANDONED_DAYS", "1").to_i.days.ago
    cutoff_idle = ENV.fetch("IDLE_HOURS", "48").to_i.hours.ago

    abandoned = Match
      .where(scheduled_at: nil)
      .where.missing(:stream_sessions)
      .where("matches.created_at < ?", cutoff_abandoned)

    stale_idle_sessions = StreamSession
      .where(status: "idle")
      .where("stream_sessions.updated_at < ?", cutoff_idle)

    puts "DRY RUN — nessuna modifica" if dry
    puts "Bozze abbandonate (senza sessione, > #{cutoff_abandoned}): #{abandoned.count}"
    abandoned.find_each do |match|
      label = "#{match.team.name} vs #{match.opponent_name} (#{match.id})"
      if dry
        puts "  would delete match #{label}"
      else
        match.destroy!
        puts "  deleted match #{label}"
      end
    end

    puts "Sessioni idle obsolete (> #{cutoff_idle}): #{stale_idle_sessions.count}"
    stale_idle_sessions.find_each do |session|
      match = session.match
      label = "#{match.team.name} vs #{match.opponent_name} session=#{session.id}"
      if dry
        puts "  would end idle session #{label}"
      else
        session.end_stream!
        puts "  ended idle session #{label}"
      end
    end

    hidden_completed = Match.includes(:stream_sessions).select do |m|
      m.stream_completed? && m.active_stream_session.nil?
    end
    puts "Partite concluse (già nascoste dall'hub): #{hidden_completed.size}"
    if ENV["DELETE_COMPLETED"] == "1"
      hidden_completed.each do |match|
        session_ids = match.stream_sessions.pluck(:id)
        next if Recording.where(stream_session_id: session_ids).exists?

        label = "#{match.team.name} vs #{match.opponent_name} (#{match.id})"
        if dry
          puts "  would delete completed #{label}"
        else
          match.destroy!
          puts "  deleted completed #{label}"
        end
      end
    end
  end
end