/**
 * Hypertext Transfer Protocol (HTTP) response status codes.
 *
 * @see {@link https://en.wikipedia.org/wiki/List_of_HTTP_status_codes}
 */
export enum HttpStatus {
  /**
   * The server has received the request headers and the client should proceed to send the request
   * body (in the case of a request for which a body needs to be sent; for example, a POST request).
   * Sending a large request body to a server after a request has been rejected for inappropriate
   * headers would be inefficient. To have a server check the request's headers, a client must send
   * Expect: 100-continue as a header in its initial request and receive a 100 Continue status code
   * in response before sending the body. The response 417 Expectation Failed indicates the request
   * should not be continued.
   */
  Continue = 100,

  /** The requester has asked the server to switch protocols and the server has agreed to do so. */
  SwitchingProtocols = 101,

  /**
   * A WebDAV request may contain many sub-requests involving file operations, requiring a long time
   * to complete the request. This code indicates that the server has received and is processing the
   * request, but no response is available yet. This prevents the client from timing out and
   * assuming the request was lost.
   */
  Processing = 102,

  /**
   * Standard response for successful HTTP requests. The actual response will depend on the request
   * method used. In a GET request, the response will contain an entity corresponding to the
   * requested resource. In a POST request, the response will contain an entity describing or
   * containing the result of the action.
   */
  Ok = 200,

  /** The request has been fulfilled, resulting in the creation of a new resource. */
  Created = 201,

  /**
   * The request has been accepted for processing, but the processing has not been completed. The
   * request might or might not be eventually acted upon, and may be disallowed when processing
   * occurs.
   */
  Accepted = 202,

  /**
   * SINCE HTTP/1.1 The server is a transforming proxy that received a 200 OK from its origin, but
   * is returning a modified version of the origin's response.
   */
  NonAuthoritativeInformation = 203,

  /** The server successfully processed the request and is not returning any content. */
  NoContent = 204,

  /**
   * The server successfully processed the request, but is not returning any content. Unlike a 204
   * response, this response requires that the requester reset the document view.
   */
  ResetContent = 205,

  /**
   * The server is delivering only part of the resource (byte serving) due to a range header sent by
   * the client. The range header is used by HTTP clients to enable resuming of interrupted
   * downloads, or split a download into multiple simultaneous streams.
   */
  PartialContent = 206,

  /**
   * The message body that follows is an XML message and can contain a number of separate response
   * codes, depending on how many sub-requests were made.
   */
  MultiStatus = 207,

  /**
   * The members of a DAV binding have already been enumerated in a preceding part of the
   * (multistatus) response, and are not being included again.
   */
  AlreadyReported = 208,

  /**
   * The server has fulfilled a request for the resource, and the response is a representation of
   * the result of one or more instance-manipulations applied to the current instance.
   */
  ImUsed = 226,

  /**
   * Indicates multiple options for the resource from which the client may choose (via agent-driven
   * content negotiation). For example, this code could be used to present multiple video format
   * options, to list files with different filename extensions, or to suggest word-sense
   * disambiguation.
   */
  MultipleChoices = 300,

  /** This and all future requests should be directed to the given URI. */
  MovedPermanently = 301,

  /**
   * This is an example of industry practice contradicting the standard. The HTTP/1.0 specification
   * (RFC 1945) required the client to perform a temporary redirect (the original describing phrase
   * was "Moved Temporarily"), but popular browsers implemented 302 with the functionality of a 303
   * See Other. Therefore, HTTP/1.1 added status codes 303 and 307 to distinguish between the two
   * behaviors. However, some Web applications and frameworks use the 302 status code as if it were
   * the 303.
   */
  Found = 302,

  /**
   * SINCE HTTP/1.1 The response to the request can be found under another URI using a GET method.
   * When received in response to a POST (or PUT/DELETE), the client should presume that the server
   * has received the data and should issue a redirect with a separate GET message.
   */
  SeeOther = 303,

  /**
   * Indicates that the resource has not been modified since the version specified by the request
   * headers If-Modified-Since or If-None-Match. In such case, there is no need to retransmit the
   * resource since the client still has a previously-downloaded copy.
   */
  NotModified = 304,

  /**
   * SINCE HTTP/1.1 The requested resource is available only through a proxy, the address for which
   * is provided in the response. Many HTTP clients (such as Mozilla and Internet Explorer) do not
   * correctly handle responses with this status code, primarily for security reasons.
   */
  UseProxy = 305,

  /** No longer used. Originally meant "Subsequent requests should use the specified proxy." */
  SwitchProxy = 306,

  /**
   * SINCE HTTP/1.1 In this case, the request should be repeated with another URI; however, future
   * requests should still use the original URI. In contrast to how 302 was historically
   * implemented, the request method is not allowed to be changed when reissuing the original
   * request. For example, a POST request should be repeated using another POST request.
   */
  TemporaryRedirect = 307,

  /**
   * The request and all future requests should be repeated using another URI. 307 and 308 parallel
   * the behaviors of 302 and 301, but do not allow the HTTP method to change. So, for example,
   * submitting a form to a permanently redirected resource may continue smoothly.
   */
  PermanentRedirect = 308,

  /**
   * The server cannot or will not process the request due to an apparent client error (e.g.,
   * malformed request syntax, too large size, invalid request message framing, or deceptive request
   * routing).
   */
  BadRequest = 400,

  /**
   * Similar to 403 Forbidden, but specifically for use when authentication is required and has
   * failed or has not yet been provided. The response must include a WWW-Authenticate header field
   * containing a challenge applicable to the requested resource. See Basic access authentication
   * and Digest access authentication. 401 semantically means "unauthenticated",i.e. the user does
   * not have the necessary credentials.
   */
  Unauthorized = 401,

  /**
   * Reserved for future use. The original intention was that this code might be used as part of
   * some form of digital cash or micro payment scheme, but that has not happened, and this code is
   * not usually used. Google Developers API uses this status if a particular developer has exceeded
   * the daily limit on requests.
   */
  PaymentRequired = 402,

  /**
   * The request was valid, but the server is refusing action. The user might not have the necessary
   * permissions for a resource.
   */
  Forbidden = 403,

  /**
   * The requested resource could not be found but may be available in the future. Subsequent
   * requests by the client are permissible.
   */
  NotFound = 404,

  /**
   * A request method is not supported for the requested resource; for example, a GET request on a
   * form that requires data to be presented via POST, or a PUT request on a read-only resource.
   */
  MethodNotAllowed = 405,

  /**
   * The requested resource is capable of generating only content not acceptable according to the
   * Accept headers sent in the request.
   */
  NotAcceptable = 406,

  /** The client must first authenticate itself with the proxy. */
  ProxyAuthenticationRequired = 407,

  /**
   * The server timed out waiting for the request. According to HTTP specifications: "The client did
   * not produce a request within the time that the server was prepared to wait. The client MAY
   * repeat the request without modifications at any later time."
   */
  RequestTimeout = 408,

  /**
   * Indicates that the request could not be processed because of conflict in the request, such as
   * an edit conflict between multiple simultaneous updates.
   */
  Conflict = 409,

  /**
   * Indicates that the resource requested is no longer available and will not be available again.
   * This should be used when a resource has been intentionally removed and the resource should be
   * purged. Upon receiving a 410 status code, the client should not request the resource in the
   * future. Clients such as search engines should remove the resource from their indices. Most use
   * cases do not require clients and search engines to purge the resource, and a "404 Not Found"
   * may be used instead.
   */
  Gone = 410,

  /**
   * The request did not specify the length of its content, which is required by the requested
   * resource.
   */
  LengthRequired = 411,

  /** The server does not meet one of the preconditions that the requester put on the request. */
  PreconditionFailed = 412,

  /**
   * The request is larger than the server is willing or able to process. Previously called "Request
   * Entity Too Large".
   */
  PayloadTooLarge = 413,

  /**
   * The URI provided was too long for the server to process. Often the result of too much data
   * being encoded as a query-string of a GET request, in which case it should be converted to a
   * POST request. Called "Request-URI Too Long" previously.
   */
  UriTooLong = 414,

  /**
   * The request entity has a media type which the server or resource does not support. For example,
   * the client uploads an image as image/svg+xml, but the server requires that images use a
   * different format.
   */
  UnsupportedMediaType = 415,

  /**
   * The client has asked for a portion of the file (byte serving), but the server cannot supply
   * that portion. For example, if the client asked for a part of the file that lies beyond the end
   * of the file. Called "Requested Range Not Satisfiable" previously.
   */
  RangeNotSatisfiable = 416,

  /** The server cannot meet the requirements of the Expect request-header field. */
  ExpectationFailed = 417,

  /**
   * This code was defined in 1998 as one of the traditional IETF April Fools' jokes, in RFC 2324,
   * Hyper Text Coffee Pot Control Protocol, and is not expected to be implemented by actual HTTP
   * servers. The RFC specifies this code should be returned by teapots requested to brew coffee.
   * This HTTP status is used as an Easter egg in some websites, including Google.com.
   */
  IAmATeapot = 418,

  /**
   * The request was directed at a server that is not able to produce a response (for example
   * because a connection reuse).
   */
  MisdirectedRequest = 421,

  /** The request was well-formed but was unable to be followed due to semantic errors. */
  UnprocessableEntity = 422,

  /** The resource that is being accessed is locked. */
  Locked = 423,

  /** The request failed due to failure of a previous request (e.g., a PROPPATCH). */
  FailedDependency = 424,

  /**
   * The client should switch to a different protocol such as TLS/1.0, given in the Upgrade header
   * field.
   */
  UpgradeRequired = 426,

  /**
   * The origin server requires the request to be conditional. Intended to prevent "the 'lost
   * update' problem, where a client GETs a resource's state, modifies it, and PUTs it back to the
   * server, when meanwhile a third party has modified the state on the server, leading to a
   * conflict."
   */
  PreconditionRequired = 428,

  /**
   * The user has sent too many requests in a given amount of time. Intended for use with
   * rate-limiting schemes.
   */
  TooManyRequests = 429,

  /**
   * The server is unwilling to process the request because either an individual header field, or
   * all the header fields collectively, are too large.
   */
  RequestHeaderFieldsTooLarge = 431,

  /**
   * A server operator has received a legal demand to deny access to a resource or to a set of
   * resources that includes the requested resource. The code 451 was chosen as a reference to the
   * novel Fahrenheit 451.
   */
  UnavailableForLegalReasons = 451,

  /**
   * A generic error message, given when an unexpected condition was encountered and no more
   * specific message is suitable.
   */
  InternalServerError = 500,

  /**
   * The server either does not recognize the request method, or it lacks the ability to fulfill the
   * request. Usually this implies future availability (e.g., a new feature of a web-service API).
   */
  NotImplemented = 501,

  /**
   * The server was acting as a gateway or proxy and received an invalid response from the upstream
   * server.
   */
  BadGateway = 502,

  /**
   * The server is currently unavailable (because it is overloaded or down for maintenance).
   * Generally, this is a temporary state.
   */
  ServiceUnavailable = 503,

  /**
   * The server was acting as a gateway or proxy and did not receive a timely response from the
   * upstream server.
   */
  GatewayTimeout = 504,

  /** The server does not support the HTTP protocol version used in the request */
  HttpVersionNotSupported = 505,

  /** Transparent content negotiation for the request results in a circular reference. */
  VariantAlsoNegotiates = 506,

  /** The server is unable to store the representation needed to complete the request. */
  InsufficientStorage = 507,

  /** The server detected an infinite loop while processing the request. */
  LoopDetected = 508,

  /** Further extensions to the request are required for the server to fulfill it. */
  NotExtended = 510,

  /**
   * The client needs to authenticate to gain network access. Intended for use by intercepting
   * proxies used to control access to the network (e.g., "captive portals" used to require
   * agreement to Terms of Service before granting full Internet access via a Wi-Fi hotspot).
   */
  NetworkAuthenticationRequired = 511,
}
