require 'net/http'

module REST
  class Connection
    def initialize(base_url, args = {})
	@base_url = base_url
	@username = args[:username]
	@password = args[:password]
    end

    def request_get(resource, args = nil)
	 request(resource, "get", args)
    end

    def request_post(resource, args = nil)
	request(resource, "post", args)
    end

    def request_put(resource, args = nil)
	request(resource, "put", args)
    end

    def request(resource, method = "get", args = nil)
	url = URI.join(@base_url, resource)
	if args
	    # TODO: What about keys without value?
	    url.query = args.map { |k,v| "%s=%s" % [URI.encode(k.to_s), URI.encode(v)] }.join("&")
	end

       case method
	when "get"
	  req = Net::HTTP::Get.new(url.request_uri)
	when "post"
	  req = Net::HTTP::Post.new(url.request_uri)
	when "put"
	  req = Net::HTTP::Put.new(url.request_uri)
	end

	if @username and @password
	  req.basic_auth(@username, @password)
	end

	http = Net::HTTP.new(url.host, url.port)
	#http.use_ssl = (url.port == 443)
	res = http.start() { |conn| conn.request(req) }
	res.body
    end
  end
end