class Restforce::Middleware::RaiseError

def body
  @body = (@env[:body].is_a?(Array) ? @env[:body].first : @env[:body])
  case @body
  when Hash
    @body
  else
    { 'errorCode' => '(error code missing)', 'message' => @body }
  end
end

def message
  "#{body['errorCode']}: #{body['message']}"
end

def on_complete(env)
  @env = env
  case env[:status]
  when 300
    raise Faraday::Error::ClientError.new("300: The external ID provided matches " \
                                          "more than one record",
                                          response_values)
  when 401
    raise Restforce::UnauthorizedError, message
  when 404
    raise Faraday::Error::ResourceNotFound, message
  when 413
    raise Faraday::Error::ClientError.new("413: Request Entity Too Large",
                                          response_values)
  when 400...600
    raise Faraday::Error::ClientError.new(message, response_values)
  end
end

def response_values
  {
    status: @env[:status],
    headers: @env[:response_headers],
    body: @env[:body]
  }
end