require 'yaml'
require 'net/http'

module Hydra
  class UnknownProxyType < RuntimeError

  end

  class ProxyConfig
    def self.load(config_yml)
      config = YAML::load(config_yml)
      if config.has_key?('proxy')
        proxy_info = config['proxy']
        #only file supported so far
        if proxy_info['type'] == "file"
          YAML::load_file(proxy_info['path'])
        elsif proxy_info['type'] == "http"
          YAML::load(Net::HTTP.get(URI.parse(proxy_info['path'])))
        else
          raise UnknownProxyType.new("Proxy config file does not know what to do with type '#{proxy_info["type"]}'.")
        end
      else
        config
      end
    end
  end
end