module PusherClient
  class Channels

    attr_reader :channels

    def initialize(logger=PusherClient.logger)
      @logger = logger
      @channels = {}
    end

    def add(channel_name, user_data=nil)
      @channels[channel_name] ||= Channel.new(channel_name, user_data, @logger)
    end

    def find(channel_name)
      @channels[channel_name]
    end

    def remove(channel_name)
      @channels.delete(channel_name)
    end

    def empty?
      @channels.empty?
    end

    def size
      @channels.size
    end

    alias :<< :add
    alias :[] :find

  end
end