client = Mongo::Client.new("mongodb://localhost:27017", :heartbeat_frequency => 15)

module Mongo
  class Client

    def initialize(addresses_or_uri, options = {})
      if addresses_or_uri.is_a?(::String)
        create_from_uri(addresses_or_uri, options)
      else
        create_from_addresses(addresses_or_uri, options)
      end
    end

    def create_from_addresses(addresses, options = {})
      @options = options.freeze
      @cluster = Cluster.new(self, addresses, @options)
      @database = Database.new(self, @options[:database])
    end

    def create_from_uri(connection_string, options = {})
      uri = URI.new(connection_string)
      @options = options.merge(uri.client_options).freeze
      @cluster = Cluster.new(self, uri.servers, @options)
      @database = Database.new(self, @options[:database])
    end

  end
end