// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

#nullable enable
namespace System.Net
{
    internal static class HttpStatusDescription
    {
        internal static string? Get(HttpStatusCode code) =>
            Get((int)code);

        internal static string? Get(int code) =>
            code switch
            {
                100 => "Continue",
                101 => "Switching Protocols",
                102 => "Processing",
                103 => "Early Hints",

                200 => "OK",
                201 => "Created",
                202 => "Accepted",
                203 => "Non-Authoritative Information",
                204 => "No Content",
                205 => "Reset Content",
                206 => "Partial Content",
                207 => "Multi-Status",
                208 => "Already Reported",
                226 => "IM Used",

                300 => "Multiple Choices",
                301 => "Moved Permanently",
                302 => "Found",
                303 => "See Other",
                304 => "Not Modified",
                305 => "Use Proxy",
                307 => "Temporary Redirect",
                308 => "Permanent Redirect",

                400 => "Bad Request",
                401 => "Unauthorized",
                402 => "Payment Required",
                403 => "Forbidden",
                404 => "Not Found",
                405 => "Method Not Allowed",
                406 => "Not Acceptable",
                407 => "Proxy Authentication Required",
                408 => "Request Timeout",
                409 => "Conflict",
                410 => "Gone",
                411 => "Length Required",
                412 => "Precondition Failed",
                413 => "Request Entity Too Large",
                414 => "Request-Uri Too Long",
                415 => "Unsupported Media Type",
                416 => "Requested Range Not Satisfiable",
                417 => "Expectation Failed",
                421 => "Misdirected Request",
                422 => "Unprocessable Entity",
                423 => "Locked",
                424 => "Failed Dependency",
                426 => "Upgrade Required", // RFC 2817
                428 => "Precondition Required",
                429 => "Too Many Requests",
                431 => "Request Header Fields Too Large",
                451 => "Unavailable For Legal Reasons",

                500 => "Internal Server Error",
                501 => "Not Implemented",
                502 => "Bad Gateway",
                503 => "Service Unavailable",
                504 => "Gateway Timeout",
                505 => "Http Version Not Supported",
                506 => "Variant Also Negotiates",
                507 => "Insufficient Storage",
                508 => "Loop Detected",
                510 => "Not Extended",
                511 => "Network Authentication Required",

                _ => null,
            };
    }
}