module Mediamtx
  # MediaMTX in produzione è distroless: runOnReady con wget non funziona.
  # Sincronizziamo lo stato Rails leggendo l'API paths (poll da /live/:id/status.json).
  class PublisherSync
    def initialize(session)
      @session = session
    end

    def call
      return @session if @session.terminal?

      info = Mediamtx::Client.new.list_paths.find { |i| i["name"] == @session.mediamtx_path_name }
      publisher_online = publisher_online?(info)

      if publisher_online
        if @session.paused?
          # RTMP ancora connesso in pausa: non forzare live/reconnect.
        elsif @session.may_go_live?
          @session.go_live!
          @session.reload
          Streams::Overlay::Refresh.call(@session)
          Streams::YoutubeRelay.ensure_publishing!(@session) if @session.platform == "youtube"
        elsif @session.reconnecting? && @session.may_reconnect?
          @session.reconnect!
          cancel_timeout
          Streams::Overlay::Refresh.call(@session.reload)
        end
      elsif !@session.paused? && @session.live? && @session.may_lose_connection?
        @session.lose_connection!
        schedule_timeout unless @session.paused?
      end

      @session.reload
    end

    private

    def publisher_online?(info)
      return false unless info

      return true if info["online"]
      return true if info["source"].present?

      false
    end

    def cancel_timeout
      return if @session.timeout_job_id.blank?

      Sidekiq::ScheduledSet.new.find_job(@session.timeout_job_id)&.delete
      @session.update!(timeout_job_id: nil)
    end

    def schedule_timeout
      job = DisconnectionTimeoutJob.perform_in(
        MatchLiveTv.reconnect_timeout_seconds.seconds,
        @session.id
      )
      @session.update!(timeout_job_id: job)
    end
  end
end