class Github::ApiFactory

def self.convert_to_constant(classes)
  constant = Github
  classes.split('::').each do |klass|
    constant = constant.const_get klass
  end
  return constant
end

def self.create_instance(klass, options)
  options.symbolize_keys!
  instance = convert_to_constant(klass.to_s).new options
  Github.api_client = instance
  instance
end

def self.new(klass, options={})
  return create_instance(klass, options) if klass
  raise ArgumentError, 'must provied klass to be instantiated'
end