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 call(env)
  on_request(env) if respond_to?(:on_request)
  @app.call(env).on_complete do |environment|
    on_complete(environment) if respond_to?(:on_complete)
  end
end

def exception_class_for_error_code(error_code)
  return Restforce::ResponseError unless ERROR_CODE_MATCHER.match?(error_code)
  Restforce::ErrorCode.get_exception_class(error_code)
end

def message
  message = "#{body['errorCode']}: #{body['message']}"
  message << "\nRESPONSE: #{JSON.dump(@env[:body])}"
rescue StandardError
  message # if JSON.dump fails, return message without extra detail
end

def on_complete(env)
  @env = env
  case env[:status]
  when 300
    raise Restforce::MatchesMultipleError.new(
      "300: The external ID provided matches more than one record",
      response_values
    )
  when 401
    raise Restforce::UnauthorizedError.new(message, response_values)
  when 404
    raise Restforce::NotFoundError.new(message, response_values)
  when 413
    raise Restforce::EntityTooLargeError.new(
      "413: Request Entity Too Large",
      response_values
    )
  when 400...600
    klass = exception_class_for_error_code(body['errorCode'])
    raise klass.new(message, response_values)
  end
end

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