class Github::Response::RaiseError

def on_complete(env)
  case env[:status].to_i
  when 400
    raise Github::BadRequest.new(response_message(env), env[:response_headers])
  when 401
    raise Github::Unauthorised.new(response_message(env), env[:response_headers])
  when 403
    raise Github::Forbidden.new(response_message(env), env[:response_headers])
  when 404
    raise Github::ResourceNotFound.new(response_message(env), env[:response_headers])
  when 422
    raise Github::UnprocessableEntitty.new(response_message(env), env[:response_headers])
  when 500
    raise Github::InternalServerError.new(response_message(env), env[:response_headers])
  when 503
    raise Github::ServiceUnavailable.new(response_message(env), env[:response_headers])
  when 400...600
    raise Github::Error.new(response_message(env), env[:response_headers])
  end
end

def response_message(env)
  "#{env[:method].to_s.upcase} #{env[:url].to_s}: #{env[:status]}#{env[:body]}"
end