StatusCode.php

<?php

/**
 * MIT License
 * Copyright (c) 2024 kafkiansky.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

declare(strict_types=1);

namespace Prototype\Grpc;

/**
 * @api
 */
enum StatusCode: int
{
    // OK is returned on success.
    case OK = 0;

    // Canceled indicates the operation was canceled (typically by the caller).
    case CANCELLED = 1;

    // Unknown error. An example of where this error may be returned is
    // if a Status value received from another address space belongs to
    // an error-space that is not known in this address space. Also
    // errors raised by APIs that do not return enough error information
    // may be converted to this error.
    case UNKNOWN = 2;

    // InvalidArgument indicates client specified an invalid argument.
    // Note that this differs from FailedPrecondition. It indicates arguments
    // that are problematic regardless of the state of the system
    // (e.g., a malformed file name).
    case INVALID_ARGUMENT = 3;

    // DeadlineExceeded means operation expired before completion.
    // For operations that change the state of the system, this error may be
    // returned even if the operation has completed successfully. For
    // example, a successful response from a server could have been delayed
    // long enough for the deadline to expire.
    case DEADLINE_EXCEEDED = 4;

    // NotFound means some requested entity (e.g., file or directory) was
    // not found.
    case NOT_FOUND = 5;

    // AlreadyExists means an attempt to create an entity failed because one
    // already exists.
    case ALREADY_EXISTS = 6;

    // PermissionDenied indicates the caller does not have permission to
    // execute the specified operation. It must not be used for rejections
    // caused by exhausting some resource (use ResourceExhausted
    // instead for those errors). It must not be
    // used if the caller cannot be identified (use Unauthenticated
    // instead for those errors).
    case PERMISSION_DENIED = 7;

    // ResourceExhausted indicates some resource has been exhausted, perhaps
    // a per-user quota, or perhaps the entire file system is out of space.
    case RESOURCE_EXHAUSTED = 8;

    // FailedPrecondition indicates operation was rejected because the
    // system is not in a state required for the operation's execution.
    // For example, directory to be deleted may be non-empty, an rmdir
    // operation is applied to a non-directory, etc.
    //
    // A litmus test that may help a service implementor in deciding
    // between FailedPrecondition, Aborted, and Unavailable:
    //  (a) Use Unavailable if the client can retry just the failing call.
    //  (b) Use Aborted if the client should retry at a higher-level
    //      (e.g., restarting a read-modify-write sequence).
    //  (c) Use FailedPrecondition if the client should not retry until
    //      the system state has been explicitly fixed. E.g., if an "rmdir"
    //      fails because the directory is non-empty, FailedPrecondition
    //      should be returned since the client should not retry unless
    //      they have first fixed up the directory by deleting files from it.
    //  (d) Use FailedPrecondition if the client performs conditional
    //      REST Get/Update/Delete on a resource and the resource on the
    //      server does not match the condition. E.g., conflicting
    //      read-modify-write on the same resource.
    case FAILED_PRECONDITION = 9;

    // Aborted indicates the operation was aborted, typically due to a
    // concurrency issue like sequencer check failures, transaction aborts,
    // etc.
    //
    // See litmus test above for deciding between FailedPrecondition,
    // Aborted, and Unavailable.
    case ABORTED = 10;

    // OutOfRange means operation was attempted past the valid range.
    // E.g., seeking or reading past end of file.
    //
    // Unlike InvalidArgument, this error indicates a problem that may
    // be fixed if the system state changes. For example, a 32-bit file
    // system will generate InvalidArgument if asked to read at an
    // offset that is not in the range [0,2^32-1], but it will generate
    // OutOfRange if asked to read from an offset past the current
    // file size.
    //
    // There is a fair bit of overlap between FailedPrecondition and
    // OutOfRange. We recommend using OutOfRange (the more specific
    // error) when it applies so that callers who are iterating through
    // a space can easily look for an OutOfRange error to detect when
    // they are done.
    case OUT_OF_RANGE = 11;

    // Unimplemented indicates operation is not implemented or not
    // supported/enabled in this service.
    case UNIMPLEMENTED = 12;

    // Internal errors. Means some invariants expected by underlying
    // system has been broken. If you see one of these errors,
    // something is very broken.
    case INTERNAL = 13;

    // Unavailable indicates the service is currently unavailable.
    // This is a most likely a transient condition and may be corrected
    // by retrying with a backoff.
    //
    // See litmus test above for deciding between FailedPrecondition,
    // Aborted, and Unavailable.
    case UNAVAILABLE = 14;

    // DataLoss indicates unrecoverable data loss or corruption.
    case DATA_LOSS = 15;

    // Unauthenticated indicates the request does not have valid
    // authentication credentials for the operation.
    case UNAUTHENTICATED = 16;
}