foreign/csharp/Iggy_SDK_Tests/Utils/Users/PermissionsFactory.cs

using Iggy_SDK.Contracts.Http;
using System.Buffers.Binary;
namespace Iggy_SDK_Tests.Utils.Users;

internal static class PermissionsFactory
{
    internal static Permissions CreatePermissions()
    {
        return new Permissions
        {
            Global = new GlobalPermissions
            {
                ManageServers = Random.Shared.Next() % 2 == 0,
                ReadServers = Random.Shared.Next() % 2 == 0,
                ManageUsers = Random.Shared.Next() % 2 == 0,
                ReadUsers = Random.Shared.Next() % 2 == 0,
                ManageStreams = Random.Shared.Next() % 2 == 0,
                ReadStreams = Random.Shared.Next() % 2 == 0,
                ManageTopics = Random.Shared.Next() % 2 == 0,
                ReadTopics = Random.Shared.Next() % 2 == 0,
                PollMessages = Random.Shared.Next() % 2 == 0,
                SendMessages = Random.Shared.Next() % 2 == 0
            },
            Streams = new Dictionary<int, StreamPermissions>
            {
                {
                    Random.Shared.Next(1,69),
                    new StreamPermissions
                    {
                        ManageStream = Random.Shared.Next() % 2 == 0,
                        ReadStream = Random.Shared.Next() % 2 == 0,
                        ManageTopics = Random.Shared.Next() % 2 == 0,
                        ReadTopics = Random.Shared.Next() % 2 == 0,
                        PollMessages = Random.Shared.Next() % 2 == 0,
                        SendMessages = Random.Shared.Next() % 2 == 0,
                        Topics = new Dictionary<int, TopicPermissions>
                        {
                            {
                                Random.Shared.Next(1,69),
                                new TopicPermissions
                                {
                                    ManageTopic = Random.Shared.Next() % 2 == 0,
                                    ReadTopic = Random.Shared.Next() % 2 == 0,
                                    PollMessages = Random.Shared.Next() % 2 == 0,
                                    SendMessages = Random.Shared.Next() % 2 == 0
                                }
                            },
                            {
                                Random.Shared.Next(1,69),
                                new TopicPermissions
                                {
                                    ManageTopic = Random.Shared.Next() % 2 == 0,
                                    ReadTopic = Random.Shared.Next() % 2 == 0,
                                    PollMessages = Random.Shared.Next() % 2 == 0,
                                    SendMessages = Random.Shared.Next() % 2 == 0
                                }
                            }
                        }
                    }
                },
                {
                    Random.Shared.Next(1,69),
                    new StreamPermissions
                    {
                        ManageStream = Random.Shared.Next() % 2 == 0,
                        ReadStream = Random.Shared.Next() % 2 == 0,
                        ManageTopics = Random.Shared.Next() % 2 == 0,
                        ReadTopics = Random.Shared.Next() % 2 == 0,
                        PollMessages = Random.Shared.Next() % 2 == 0,
                        SendMessages = Random.Shared.Next() % 2 == 0,
                        Topics = null
                    }
                }
            }
        };

    }
    internal static Permissions PermissionsFromBytes(byte[] bytes)
    {
        var streamMap = new Dictionary<int, StreamPermissions>();
        int index = 0;

        var globalPermissions = new GlobalPermissions
        {
            ManageServers = bytes[index++] == 1,
            ReadServers = bytes[index++] == 1,
            ManageUsers = bytes[index++] == 1,
            ReadUsers = bytes[index++] == 1,
            ManageStreams = bytes[index++] == 1,
            ReadStreams = bytes[index++] == 1,
            ManageTopics = bytes[index++] == 1,
            ReadTopics = bytes[index++] == 1,
            PollMessages = bytes[index++] == 1,
            SendMessages = bytes[index++] == 1,
        };

        if (bytes[index++] == 1)
        {
            while (true)
            {
                var streamId = BinaryPrimitives.ReadInt32LittleEndian(bytes[index..(index + 4)]);
                index += sizeof(int);

                var manageStream = bytes[index++] == 1;
                var readStream = bytes[index++] == 1;
                var manageTopics = bytes[index++] == 1;
                var readTopics = bytes[index++] == 1;
                var pollMessagesStream = bytes[index++] == 1;
                var sendMessagesStream = bytes[index++] == 1;
                var topicsMap = new Dictionary<int, TopicPermissions>();

                if (bytes[index++] == 1)
                {
                    while (true)
                    {
                        var topicId = BinaryPrimitives.ReadInt32LittleEndian(bytes[index..(index + 4)]);
                        index += sizeof(int);

                        var manageTopic = bytes[index++] == 1;
                        var readTopic = bytes[index++] == 1;
                        var pollMessagesTopic = bytes[index++] == 1;
                        var sendMessagesTopic = bytes[index++] == 1;

                        topicsMap.Add(topicId, new TopicPermissions
                        {
                            ManageTopic = manageTopic,
                            ReadTopic = readTopic,
                            PollMessages = pollMessagesTopic,
                            SendMessages = sendMessagesTopic,
                        });

                        if (bytes[index++] == 0)
                            break;
                    }
                }

                streamMap.Add(streamId, new StreamPermissions
                {
                    ManageStream = manageStream,
                    ReadStream = readStream,
                    ManageTopics = manageTopics,
                    ReadTopics = readTopics,
                    PollMessages = pollMessagesStream,
                    SendMessages = sendMessagesStream,
                    Topics = topicsMap.Count > 0 ? topicsMap : null,
                });

                if (bytes[index++] == 0)
                    break;
            }
        }

        return new Permissions
        {
            Global = globalPermissions, 
            Streams = streamMap.Count > 0 ? streamMap : null
        };
    }
}