status_code.h

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#ifndef FASTLY_HTTP_STATUS_CODE_H
#define FASTLY_HTTP_STATUS_CODE_H
 
#include <cstdint>
#include <cstdlib>
#include <fastly/error.h>
#include <fastly/expected.h>
#include <fastly/sdk-sys.h>
#include <iostream>
#include <optional>
 
namespace fastly::http {
 
class StatusCode {
public:
  StatusCode() = default;

  constexpr StatusCode(uint16_t code) : value(code) {
    if (code < 100 || code >= 1000) {
      std::cerr << "Invalid StatusCode value.";
      std::abort();
    }
  }

  static const StatusCode CONTINUE;
  static const StatusCode SWITCHING_PROTOCOLS;
  static const StatusCode PROCESSING;
  static const StatusCode OK;
  static const StatusCode CREATED;
  static const StatusCode ACCEPTED;
  static const StatusCode NON_AUTHORITATIVE_INFORMATION;
  static const StatusCode NO_CONTENT;
  static const StatusCode RESET_CONTENT;
  static const StatusCode PARTIAL_CONTENT;
  static const StatusCode MULTI_STATUS;
  static const StatusCode ALREADY_REPORTED;
  static const StatusCode IM_USED;
  static const StatusCode MULTIPLE_CHOICES;
  static const StatusCode MOVED_PERMANENTLY;
  static const StatusCode FOUND;
  static const StatusCode SEE_OTHER;
  static const StatusCode NOT_MODIFIED;
  static const StatusCode USE_PROXY;
  static const StatusCode TEMPORARY_REDIRECT;
  static const StatusCode PERMANENT_REDIRECT;
  static const StatusCode BAD_REQUEST;
  static const StatusCode UNAUTHORIZED;
  static const StatusCode PAYMENT_REQUIRED;
  static const StatusCode FORBIDDEN;
  static const StatusCode NOT_FOUND;
  static const StatusCode METHOD_NOT_ALLOWED;
  static const StatusCode NOT_ACCEPTABLE;
  static const StatusCode PROXY_AUTHENTICATION_REQUIRED;
  static const StatusCode REQUEST_TIMEOUT;
  static const StatusCode CONFLICT;
  static const StatusCode GONE;
  static const StatusCode LENGTH_REQUIRED;
  static const StatusCode PRECONDITION_FAILED;
  static const StatusCode PAYLOAD_TOO_LARGE;
  static const StatusCode URI_TOO_LONG;
  static const StatusCode UNSUPPORTED_MEDIA_TYPE;
  static const StatusCode RANGE_NOT_SATISFIABLE;
  static const StatusCode EXPECTATION_FAILED;
  static const StatusCode IM_A_TEAPOT;
  static const StatusCode MISDIRECTED_REQUEST;
  static const StatusCode UNPROCESSABLE_ENTITY;
  static const StatusCode LOCKED;
  static const StatusCode FAILED_DEPENDENCY;
  static const StatusCode TOO_EARLY;
  static const StatusCode UPGRADE_REQUIRED;
  static const StatusCode PRECONDITION_REQUIRED;
  static const StatusCode TOO_MANY_REQUESTS;
  static const StatusCode REQUEST_HEADER_FIELDS_TOO_LARGE;
  static const StatusCode UNAVAILABLE_FOR_LEGAL_REASONS;
  static const StatusCode INTERNAL_SERVER_ERROR;
  static const StatusCode NOT_IMPLEMENTED;
  static const StatusCode BAD_GATEWAY;
  static const StatusCode SERVICE_UNAVAILABLE;
  static const StatusCode GATEWAY_TIMEOUT;
  static const StatusCode HTTP_VERSION_NOT_SUPPORTED;
  static const StatusCode VARIANT_ALSO_NEGOTIATES;
  static const StatusCode INSUFFICIENT_STORAGE;
  static const StatusCode LOOP_DETECTED;
  static const StatusCode NOT_EXTENDED;
  static const StatusCode NETWORK_AUTHENTICATION_REQUIRED;
 
  constexpr bool operator==(StatusCode a) const { return value == a.value; }
  constexpr bool operator!=(StatusCode a) const { return value != a.value; }
  explicit operator bool() const = delete;

  std::optional<StatusCode> from_code(uint16_t code);

  uint16_t as_code();

  tl::expected<std::optional<std::string>, fastly::FastlyError>
  canonical_reason();

  bool is_informational();

  bool is_success();

  bool is_redirection();

  bool is_client_error();

  bool is_server_error();
 
private:
  uint16_t value;
};
 
} // namespace fastly::http
 
#endif