mskog/broad

module Services
  class WaitlistMoviesCheck
    def initialize(movie)
      @movie = movie
    end

    def perform
      @movie.fetch_new_releases
      if @movie.has_acceptable_release?
        notify_huginn
        set_download_at
      end
      @movie.save
    end

    private

    def set_download_at
      if @movie.has_killer_release?
        set_killer_release
      else
        set_delayed_download_at
      end
    end

    def notify_huginn
      return if @movie.title.blank?
      return if @movie.download_at.present? && (!@movie.has_killer_release? && @movie.download_at < movie_download_time)
      if @movie.has_killer_release?
        message = "A killer release for #{@movie.title} has been found. Will download immediately"
      else
        hours = ENV["PTP_WAITLIST_DELAY_HOURS"]
        message = "An acceptable release for #{@movie.title} has been found. Will download in #{hours} hours"
      end
      NotifyHuginnJob.perform_later message
    end

    def set_killer_release
      @movie.download_at = [@movie.download_at, DateTime.now].compact.min
    end

    def set_delayed_download_at
      @movie.download_at = movie_download_time if @movie.download_at.blank?
    end

    def movie_download_time
      DateTime.now + ENV["PTP_WAITLIST_DELAY_HOURS"].to_i.hours
    end
  end
end