module RubyQA
  class Host
    DEFAULT_HOSTDATA={
      :hostname      => "",
      :ip            => "",
      :port          => 22,
      :user          => ENV["USER"],
      :password      => "",
      :site          => "",
      :cluster       => false,
      :sudo_password => "",
      :runner        => SSH_Runner
    }

    attr_reader :client, :data, :resources

    def initialize( data = {} )
      @resources = Hash.new

      @data = DEFAULT_HOSTDATA.merge data

      if not @data[:hostname].empty? and @data[:site].empty?
        data[:site]=@data[:hostname][0,3]
      end

      ## initialize client for usage tests
      @client = @data[:runner].new(@data)
    end

    def exec (command)
      ## Send a command from the host
      @client.exec(command)
    end

    def exec_sudo (command)
      ## Send a sudo command from the host
      @client.exec_sudo(command)
    end

    def [](key)
      ## Provide Access to data (:ip, etc)
      @data[key]
    end

    def name
      if @data[:hostname] != ""
        @data[:hostname] 
      elsif @resources['facts'].data['hostname'] != ""
        @resources['facts'].data['hostname']
      else
        self.exec('hostname')
      end
    end

    def add_resource (object)
      ## If the requirements are met by the host, add the resource
      if object::REQUIREMENTS.all?{|key,val| @data[key] == val}
        resource = object.new(self)
        @resources[resource.name]=resource
      end
    end

    def update_resources
      @resources.each_value(&:gather)
    end
  end
end