package http

import (
	"strconv"
)

type StatusCode uint16

func (c StatusCode) String() string {
	numStr := strconv.FormatUint(uint64(c), 10)
	return statusText(c) + " (" + numStr + ")"
}

/// Copied from /usr/lib/go/src/net/http/status.go
/// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// HTTP status codes as registered with IANA.
// See: https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
// Details: https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
const (
	StatusNotInitialized     StatusCode = 0   // for Response.reset
	StatusContinue           StatusCode = 100 // RFC 9110, 15.2.1
	StatusSwitchingProtocols StatusCode = 101 // RFC 9110, 15.2.2
	StatusProcessing         StatusCode = 102 // RFC 2518, 10.1
	StatusEarlyHints         StatusCode = 103 // RFC 8297

	StatusOK                   StatusCode = 200 // RFC 9110, 15.3.1
	StatusCreated              StatusCode = 201 // RFC 9110, 15.3.2
	StatusAccepted             StatusCode = 202 // RFC 9110, 15.3.3
	StatusNonAuthoritativeInfo StatusCode = 203 // RFC 9110, 15.3.4
	StatusNoContent            StatusCode = 204 // RFC 9110, 15.3.5
	StatusResetContent         StatusCode = 205 // RFC 9110, 15.3.6
	StatusPartialContent       StatusCode = 206 // RFC 9110, 15.3.7
	StatusMultiStatus          StatusCode = 207 // RFC 4918, 11.1
	StatusAlreadyReported      StatusCode = 208 // RFC 5842, 7.1
	StatusIMUsed               StatusCode = 226 // RFC 3229, 10.4.1

	StatusMultipleChoices   StatusCode = 300 // RFC 9110, 15.4.1
	StatusMovedPermanently  StatusCode = 301 // RFC 9110, 15.4.2
	StatusFound             StatusCode = 302 // RFC 9110, 15.4.3
	StatusSeeOther          StatusCode = 303 // RFC 9110, 15.4.4
	StatusNotModified       StatusCode = 304 // RFC 9110, 15.4.5
	StatusUseProxy          StatusCode = 305 // RFC 9110, 15.4.6
	_                       StatusCode = 306 // RFC 9110, 15.4.7 (Unused)
	StatusTemporaryRedirect StatusCode = 307 // RFC 9110, 15.4.8
	StatusPermanentRedirect StatusCode = 308 // RFC 9110, 15.4.9

	StatusBadRequest                   StatusCode = 400 // RFC 9110, 15.5.1
	StatusUnauthorized                 StatusCode = 401 // RFC 9110, 15.5.2
	StatusPaymentRequired              StatusCode = 402 // RFC 9110, 15.5.3
	StatusForbidden                    StatusCode = 403 // RFC 9110, 15.5.4
	StatusNotFound                     StatusCode = 404 // RFC 9110, 15.5.5
	StatusMethodNotAllowed             StatusCode = 405 // RFC 9110, 15.5.6
	StatusNotAcceptable                StatusCode = 406 // RFC 9110, 15.5.7
	StatusProxyAuthRequired            StatusCode = 407 // RFC 9110, 15.5.8
	StatusRequestTimeout               StatusCode = 408 // RFC 9110, 15.5.9
	StatusConflict                     StatusCode = 409 // RFC 9110, 15.5.10
	StatusGone                         StatusCode = 410 // RFC 9110, 15.5.11
	StatusLengthRequired               StatusCode = 411 // RFC 9110, 15.5.12
	StatusPreconditionFailed           StatusCode = 412 // RFC 9110, 15.5.13
	StatusRequestEntityTooLarge        StatusCode = 413 // RFC 9110, 15.5.14
	StatusRequestURITooLong            StatusCode = 414 // RFC 9110, 15.5.15
	StatusUnsupportedMediaType         StatusCode = 415 // RFC 9110, 15.5.16
	StatusRequestedRangeNotSatisfiable StatusCode = 416 // RFC 9110, 15.5.17
	StatusExpectationFailed            StatusCode = 417 // RFC 9110, 15.5.18
	StatusTeapot                       StatusCode = 418 // RFC 9110, 15.5.19 (Unused)
	StatusMisdirectedRequest           StatusCode = 421 // RFC 9110, 15.5.20
	StatusUnprocessableEntity          StatusCode = 422 // RFC 9110, 15.5.21
	StatusLocked                       StatusCode = 423 // RFC 4918, 11.3
	StatusFailedDependency             StatusCode = 424 // RFC 4918, 11.4
	StatusTooEarly                     StatusCode = 425 // RFC 8470, 5.2.
	StatusUpgradeRequired              StatusCode = 426 // RFC 9110, 15.5.22
	StatusPreconditionRequired         StatusCode = 428 // RFC 6585, 3
	StatusTooManyRequests              StatusCode = 429 // RFC 6585, 4
	StatusRequestHeaderFieldsTooLarge  StatusCode = 431 // RFC 6585, 5
	StatusUnavailableForLegalReasons   StatusCode = 451 // RFC 7725, 3

	StatusInternalServerError           StatusCode = 500 // RFC 9110, 15.6.1
	StatusNotImplemented                StatusCode = 501 // RFC 9110, 15.6.2
	StatusBadGateway                    StatusCode = 502 // RFC 9110, 15.6.3
	StatusServiceUnavailable            StatusCode = 503 // RFC 9110, 15.6.4
	StatusGatewayTimeout                StatusCode = 504 // RFC 9110, 15.6.5
	StatusHTTPVersionNotSupported       StatusCode = 505 // RFC 9110, 15.6.6
	StatusVariantAlsoNegotiates         StatusCode = 506 // RFC 2295, 8.1
	StatusInsufficientStorage           StatusCode = 507 // RFC 4918, 11.5
	StatusLoopDetected                  StatusCode = 508 // RFC 5842, 7.2
	StatusNotExtended                   StatusCode = 510 // RFC 2774, 7
	StatusNetworkAuthenticationRequired StatusCode = 511 // RFC 6585, 6
)

func statusText(c StatusCode) string {
	switch c {
	case StatusContinue:
		return "Continue"
	case StatusSwitchingProtocols:
		return "Switching Protocols"
	case StatusProcessing:
		return "Processing"
	case StatusEarlyHints:
		return "Early Hints"
	case StatusOK:
		return "OK"
	case StatusCreated:
		return "Created"
	case StatusAccepted:
		return "Accepted"
	case StatusNonAuthoritativeInfo:
		return "Non-Authoritative Information"
	case StatusNoContent:
		return "No Content"
	case StatusResetContent:
		return "Reset Content"
	case StatusPartialContent:
		return "Partial Content"
	case StatusMultiStatus:
		return "Multi-Status"
	case StatusAlreadyReported:
		return "Already Reported"
	case StatusIMUsed:
		return "IM Used"
	case StatusMultipleChoices:
		return "Multiple Choices"
	case StatusMovedPermanently:
		return "Moved Permanently"
	case StatusFound:
		return "Found"
	case StatusSeeOther:
		return "See Other"
	case StatusNotModified:
		return "Not Modified"
	case StatusUseProxy:
		return "Use Proxy"
	case StatusTemporaryRedirect:
		return "Temporary Redirect"
	case StatusPermanentRedirect:
		return "Permanent Redirect"
	case StatusBadRequest:
		return "Bad Request"
	case StatusUnauthorized:
		return "Unauthorized"
	case StatusPaymentRequired:
		return "Payment Required"
	case StatusForbidden:
		return "Forbidden"
	case StatusNotFound:
		return "Not Found"
	case StatusMethodNotAllowed:
		return "Method Not Allowed"
	case StatusNotAcceptable:
		return "Not Acceptable"
	case StatusProxyAuthRequired:
		return "Proxy Authentication Required"
	case StatusRequestTimeout:
		return "Request Timeout"
	case StatusConflict:
		return "Conflict"
	case StatusGone:
		return "Gone"
	case StatusLengthRequired:
		return "Length Required"
	case StatusPreconditionFailed:
		return "Precondition Failed"
	case StatusRequestEntityTooLarge:
		return "Request Entity Too Large"
	case StatusRequestURITooLong:
		return "Request URI Too Long"
	case StatusUnsupportedMediaType:
		return "Unsupported Media Type"
	case StatusRequestedRangeNotSatisfiable:
		return "Requested Range Not Satisfiable"
	case StatusExpectationFailed:
		return "Expectation Failed"
	case StatusTeapot:
		return "I'm a teapot"
	case StatusMisdirectedRequest:
		return "Misdirected Request"
	case StatusUnprocessableEntity:
		return "Unprocessable Entity"
	case StatusLocked:
		return "Locked"
	case StatusFailedDependency:
		return "Failed Dependency"
	case StatusTooEarly:
		return "Too Early"
	case StatusUpgradeRequired:
		return "Upgrade Required"
	case StatusPreconditionRequired:
		return "Precondition Required"
	case StatusTooManyRequests:
		return "Too Many Requests"
	case StatusRequestHeaderFieldsTooLarge:
		return "Request Header Fields Too Large"
	case StatusUnavailableForLegalReasons:
		return "Unavailable For Legal Reasons"
	case StatusInternalServerError:
		return "Internal Server Error"
	case StatusNotImplemented:
		return "Not Implemented"
	case StatusBadGateway:
		return "Bad Gateway"
	case StatusServiceUnavailable:
		return "Service Unavailable"
	case StatusGatewayTimeout:
		return "Gateway Timeout"
	case StatusHTTPVersionNotSupported:
		return "HTTP Version Not Supported"
	case StatusVariantAlsoNegotiates:
		return "Variant Also Negotiates"
	case StatusInsufficientStorage:
		return "Insufficient Storage"
	case StatusLoopDetected:
		return "Loop Detected"
	case StatusNotExtended:
		return "Not Extended"
	case StatusNetworkAuthenticationRequired:
		return "Network Authentication Required"
	default:
		return "INVALID STATUS CODE"
	}
}