implement metaservice v2

Application/Commands/ClientTags/AddClientTagCommand.cs

@@ -0,0 +1,64 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Data.Models;
+using Data.Models.Client;
+using Microsoft.Extensions.Logging;
+using SharedLibraryCore;
+using SharedLibraryCore.Commands;
+using SharedLibraryCore.Configuration;
+using SharedLibraryCore.Interfaces;
+
+namespace IW4MAdmin.Application.Commands.ClientTags
+{
+    public class AddClientTagCommand : Command
+    {
+        private readonly IMetaServiceV2 _metaService;
+
+        public AddClientTagCommand(ILogger<AddClientTagCommand> commandLogger, CommandConfiguration config,
+            ITranslationLookup layout, IMetaServiceV2 metaService) :
+            base(config, layout)
+        {
+            Name = "addclienttag";
+            Description = layout["COMMANDS_ADD_CLIENT_TAG_DESC"];
+            Alias = "act";
+            Permission = EFClient.Permission.Owner;
+            RequiresTarget = false;
+            Arguments = new[]
+            {
+                new CommandArgument
+                {
+                    Name = _translationLookup["COMMANDS_ARGUMENT_TAG"],
+                    Required = true
+                }
+            };
+
+            _metaService = metaService;
+            logger = commandLogger;
+        }
+
+        public override async Task ExecuteAsync(GameEvent gameEvent)
+        {
+            var existingTags = await _metaService.GetPersistentMetaValue<List<TagMeta>>(EFMeta.ClientTagNameV2) ??
+                               new List<TagMeta>();
+
+            var tagName = gameEvent.Data.Trim();
+
+            if (existingTags.Any(tag => tag.TagName == tagName))
+            {
+                logger.LogWarning("Tag with name {TagName} already exists", tagName);
+                return;
+            }
+
+            existingTags.Add(new TagMeta
+            {
+                Id = (existingTags.LastOrDefault()?.TagId ?? 0) + 1,
+                Value = tagName
+            });
+
+            await _metaService.SetPersistentMetaValue(EFMeta.ClientTagNameV2, existingTags,
+                gameEvent.Owner.Manager.CancellationToken);
+            gameEvent.Origin.Tell(_translationLookup["COMMANDS_ADD_CLIENT_TAG_SUCCESS"].FormatExt(gameEvent.Data));
+        }
+    }
+}

Application/Commands/ClientTags/ListClientTags.cs

@@ -1,17 +1,19 @@
-using System.Linq;
+using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 using Data.Models;
 using Data.Models.Client;
+using SharedLibraryCore;
 using SharedLibraryCore.Configuration;
 using SharedLibraryCore.Interfaces;
 
-namespace SharedLibraryCore.Commands
+namespace IW4MAdmin.Application.Commands.ClientTags
 {
     public class ListClientTags : Command
     {
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
 
-        public ListClientTags(CommandConfiguration config, ITranslationLookup layout, IMetaService metaService) : base(
+        public ListClientTags(CommandConfiguration config, ITranslationLookup layout, IMetaServiceV2 metaService) : base(
             config, layout)
         {
             Name = "listclienttags";
@@ -19,14 +21,17 @@ namespace SharedLibraryCore.Commands
             Alias = "lct";
             Permission = EFClient.Permission.Owner;
             RequiresTarget = false;
-
             _metaService = metaService;
         }
 
         public override async Task ExecuteAsync(GameEvent gameEvent)
         {
-            var tags = await _metaService.GetPersistentMeta(EFMeta.ClientTagName);
+            var tags = await _metaService.GetPersistentMetaValue<List<TagMeta>>(EFMeta.ClientTagNameV2);
-            gameEvent.Origin.Tell(tags.Select(tag => tag.Value));
+            
+            if (tags is not null)
+            {
+                gameEvent.Origin.Tell(tags.Select(tag => tag.TagName));
+            }
         }
     }
-}
+}

Application/Commands/ClientTags/RemoveClientTagCommand.cs

@@ -1,16 +1,20 @@
-using System.Threading.Tasks;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using System.Linq;
 using Data.Models;
 using Data.Models.Client;
+using SharedLibraryCore;
+using SharedLibraryCore.Commands;
 using SharedLibraryCore.Configuration;
 using SharedLibraryCore.Interfaces;
 
-namespace SharedLibraryCore.Commands
+namespace IW4MAdmin.Application.Commands.ClientTags
 {
     public class RemoveClientTag : Command
     {
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
 
-        public RemoveClientTag(CommandConfiguration config, ITranslationLookup layout, IMetaService metaService) : base(
+        public RemoveClientTag(CommandConfiguration config, ITranslationLookup layout, IMetaServiceV2 metaService) : base(
             config, layout)
         {
             Name = "removeclienttag";
@@ -32,8 +36,13 @@ namespace SharedLibraryCore.Commands
 
         public override async Task ExecuteAsync(GameEvent gameEvent)
         {
-            await _metaService.RemovePersistentMeta(EFMeta.ClientTagName, gameEvent.Data);
+            var existingMeta = await _metaService.GetPersistentMetaValue<List<TagMeta>>(EFMeta.ClientTagNameV2,
+                gameEvent.Owner.Manager.CancellationToken);
+            existingMeta = existingMeta.Where(meta => meta.TagName != gameEvent.Data.Trim()).ToList();
+            await _metaService.SetPersistentMetaValue(EFMeta.ClientTagNameV2, existingMeta,
+                gameEvent.Owner.Manager.CancellationToken);
+            
             gameEvent.Origin.Tell(_translationLookup["COMMANDS_REMOVE_CLIENT_TAG_SUCCESS"].FormatExt(gameEvent.Data));
         }
     }
-}
+}

Application/Commands/ClientTags/SetClientTagCommand.cs

@@ -1,18 +1,22 @@
-using System.Linq;
+using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 using Data.Models;
 using Data.Models.Client;
+using SharedLibraryCore;
+using SharedLibraryCore.Commands;
 using SharedLibraryCore.Configuration;
+using SharedLibraryCore.Dtos;
 using SharedLibraryCore.Interfaces;
 
-namespace SharedLibraryCore.Commands
+namespace IW4MAdmin.Application.Commands.ClientTags
 {
     public class SetClientTagCommand : Command
     {
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
 
 
-        public SetClientTagCommand(CommandConfiguration config, ITranslationLookup layout, IMetaService metaService) :
+        public SetClientTagCommand(CommandConfiguration config, ITranslationLookup layout, IMetaServiceV2 metaService) :
             base(config, layout)
         {
             Name = "setclienttag";
@@ -34,8 +38,10 @@ namespace SharedLibraryCore.Commands
 
         public override async Task ExecuteAsync(GameEvent gameEvent)
         {
-            var availableTags = await _metaService.GetPersistentMeta(EFMeta.ClientTagName);
+            var token = gameEvent.Owner.Manager.CancellationToken;
-            var matchingTag = availableTags.FirstOrDefault(tag => tag.Value == gameEvent.Data);
+            
+            var availableTags = await _metaService.GetPersistentMetaValue<List<LookupValue<string>>>(EFMeta.ClientTagNameV2, token);
+            var matchingTag = availableTags.FirstOrDefault(tag => tag.Value == gameEvent.Data.Trim());
 
             if (matchingTag == null)
             {
@@ -44,8 +50,9 @@ namespace SharedLibraryCore.Commands
             }
 
             gameEvent.Target.Tag = matchingTag.Value;
-            await _metaService.AddPersistentMeta(EFMeta.ClientTag, string.Empty, gameEvent.Target, matchingTag);
+            await _metaService.SetPersistentMetaForLookupKey(EFMeta.ClientTagV2, EFMeta.ClientTagNameV2, matchingTag.Id,
+                gameEvent.Target.ClientId, token);
             gameEvent.Origin.Tell(_translationLookup["COMMANDS_SET_CLIENT_TAG_SUCCESS"].FormatExt(matchingTag.Value));
         }
     }
-}
+}

Application/Commands/ClientTags/TagMeta.cs

@@ -0,0 +1,13 @@
+using System.Text.Json.Serialization;
+using SharedLibraryCore.Interfaces;
+
+namespace IW4MAdmin.Application.Commands.ClientTags;
+
+public class TagMeta : ILookupValue<string>
+{
+    [JsonIgnore] public int TagId => Id;
+    [JsonIgnore] public string TagName => Value;
+
+    public int Id { get; set; }
+    public string Value { get; set; }
+}

Application/Commands/ClientTags/UnsetClientTagCommand.cs

@@ -1,17 +1,18 @@
 using System.Threading.Tasks;
 using Data.Models;
 using Data.Models.Client;
+using SharedLibraryCore;
+using SharedLibraryCore.Commands;
 using SharedLibraryCore.Configuration;
 using SharedLibraryCore.Interfaces;
 
-namespace SharedLibraryCore.Commands
+namespace IW4MAdmin.Application.Commands.ClientTags
 {
     public class UnsetClientTagCommand : Command
     {
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
 
-
+        public UnsetClientTagCommand(CommandConfiguration config, ITranslationLookup layout, IMetaServiceV2 metaService) :
-        public UnsetClientTagCommand(CommandConfiguration config, ITranslationLookup layout, IMetaService metaService) :
             base(config, layout)
         {
             Name = "unsetclienttag";
@@ -34,8 +35,9 @@ namespace SharedLibraryCore.Commands
         public override async Task ExecuteAsync(GameEvent gameEvent)
         {
             gameEvent.Target.Tag = null;
-            await _metaService.RemovePersistentMeta(EFMeta.ClientTag, gameEvent.Target);
+            await _metaService.RemovePersistentMeta(EFMeta.ClientTagV2, gameEvent.Target.ClientId,
+                gameEvent.Owner.Manager.CancellationToken);
             gameEvent.Origin.Tell(_translationLookup["COMMANDS_UNSET_CLIENT_TAG_SUCCESS"]);
         }
     }
-}
+}

Application/Factories/GameServerInstanceFactory.cs

@@ -14,7 +14,7 @@ namespace IW4MAdmin.Application.Factories
     internal class GameServerInstanceFactory : IGameServerInstanceFactory
     {
         private readonly ITranslationLookup _translationLookup;
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
         private readonly IServiceProvider _serviceProvider;
 
         /// <summary>
@@ -23,7 +23,7 @@ namespace IW4MAdmin.Application.Factories
         /// <param name="translationLookup"></param>
         /// <param name="rconConnectionFactory"></param>
         public GameServerInstanceFactory(ITranslationLookup translationLookup,
-            IMetaService metaService,
+            IMetaServiceV2 metaService,
             IServiceProvider serviceProvider)
         {
             _translationLookup = translationLookup;
@@ -45,4 +45,4 @@ namespace IW4MAdmin.Application.Factories
                 _serviceProvider.GetRequiredService<ILookupCache<EFServer>>());
         }
     }
-}
+}

Application/IW4MServer.cs

@@ -35,7 +35,7 @@ namespace IW4MAdmin
         private static readonly SharedLibraryCore.Localization.TranslationLookup loc = Utilities.CurrentLocalization.LocalizationIndex;
         public GameLogEventDetection LogEvent;
         private readonly ITranslationLookup _translationLookup;
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
         private const int REPORT_FLAG_COUNT = 4;
         private long lastGameTime = 0;
 
@@ -49,7 +49,7 @@ namespace IW4MAdmin
             ServerConfiguration serverConfiguration,
             CommandConfiguration commandConfiguration,
             ITranslationLookup lookup,
-            IMetaService metaService, 
+            IMetaServiceV2 metaService, 
             IServiceProvider serviceProvider,
             IClientNoticeMessageFormatter messageFormatter,
             ILookupCache<EFServer> serverCache) : base(serviceProvider.GetRequiredService<ILogger<Server>>(), 
@@ -350,7 +350,8 @@ namespace IW4MAdmin
                             Time = DateTime.UtcNow
                         });
 
-                        var clientTag = await _metaService.GetPersistentMeta(EFMeta.ClientTag, E.Origin);
+                        var clientTag = await _metaService.GetPersistentMetaByLookup(EFMeta.ClientTagV2,
+                            EFMeta.ClientTagNameV2, E.Origin.ClientId, Manager.CancellationToken);
 
                         if (clientTag?.LinkedMeta != null)
                         {
@@ -568,8 +569,10 @@ namespace IW4MAdmin
                         Time = DateTime.UtcNow
                     });
 
-                    await _metaService.AddPersistentMeta("LastMapPlayed", CurrentMap.Alias, E.Origin);
+                    await _metaService.SetPersistentMeta("LastMapPlayed", CurrentMap.Alias, E.Origin.ClientId,
-                    await _metaService.AddPersistentMeta("LastServerPlayed", E.Owner.Hostname, E.Origin);
+                        Manager.CancellationToken);
+                    await _metaService.SetPersistentMeta("LastServerPlayed", E.Owner.Hostname, E.Origin.ClientId,
+                        Manager.CancellationToken);
                 }
 
                 else if (E.Type == GameEvent.EventType.PreDisconnect)

Application/Main.cs

@@ -278,7 +278,7 @@ namespace IW4MAdmin.Application
 
             // register the native commands
             foreach (var commandType in typeof(SharedLibraryCore.Commands.QuitCommand).Assembly.GetTypes()
-                .Concat(typeof(Program).Assembly.GetTypes().Where(type => type.Namespace == "IW4MAdmin.Application.Commands"))
+                .Concat(typeof(Program).Assembly.GetTypes().Where(type => type.Namespace?.StartsWith("IW4MAdmin.Application.Commands") ?? false))
                 .Where(command => command.BaseType == typeof(Command)))
             {
                 defaultLogger.LogDebug("Registered native command type {Name}", commandType.Name);
@@ -406,6 +406,7 @@ namespace IW4MAdmin.Application
                 .AddSingleton<IAuditInformationRepository, AuditInformationRepository>()
                 .AddSingleton<IEntityService<EFClient>, ClientService>()
                 .AddSingleton<IMetaService, MetaService>()
+                .AddSingleton<IMetaServiceV2, MetaServiceV2>()
                 .AddSingleton<ClientService>()
                 .AddSingleton<PenaltyService>()
                 .AddSingleton<ChangeHistoryService>()

Application/Meta/MetaRegistration.cs

@@ -5,6 +5,7 @@ using SharedLibraryCore.Interfaces;
 using SharedLibraryCore.QueryHelper;
 using System;
 using System.Collections.Generic;
+using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using ILogger = Microsoft.Extensions.Logging.ILogger;
@@ -15,17 +16,22 @@ namespace IW4MAdmin.Application.Meta
     {
         private readonly ILogger _logger;
         private ITranslationLookup _transLookup;
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
         private readonly IEntityService<EFClient> _clientEntityService;
         private readonly IResourceQueryHelper<ClientPaginationRequest, ReceivedPenaltyResponse> _receivedPenaltyHelper;
-        private readonly IResourceQueryHelper<ClientPaginationRequest, AdministeredPenaltyResponse> _administeredPenaltyHelper;
+
+        private readonly IResourceQueryHelper<ClientPaginationRequest, AdministeredPenaltyResponse>
+            _administeredPenaltyHelper;
+
         private readonly IResourceQueryHelper<ClientPaginationRequest, UpdatedAliasResponse> _updatedAliasHelper;
+
         private readonly IResourceQueryHelper<ClientPaginationRequest, ConnectionHistoryResponse>
             _connectionHistoryHelper;
+
         private readonly IResourceQueryHelper<ClientPaginationRequest, PermissionLevelChangedResponse>
             _permissionLevelHelper;
 
-        public MetaRegistration(ILogger<MetaRegistration> logger, IMetaService metaService,
+        public MetaRegistration(ILogger<MetaRegistration> logger, IMetaServiceV2 metaService,
             ITranslationLookup transLookup, IEntityService<EFClient> clientEntityService,
             IResourceQueryHelper<ClientPaginationRequest, ReceivedPenaltyResponse> receivedPenaltyHelper,
             IResourceQueryHelper<ClientPaginationRequest, AdministeredPenaltyResponse> administeredPenaltyHelper,
@@ -46,19 +52,26 @@ namespace IW4MAdmin.Application.Meta
 
         public void Register()
         {
-            _metaService.AddRuntimeMeta<ClientPaginationRequest, InformationResponse>(MetaType.Information, GetProfileMeta);
+            _metaService.AddRuntimeMeta<ClientPaginationRequest, InformationResponse>(MetaType.Information,
-            _metaService.AddRuntimeMeta<ClientPaginationRequest, ReceivedPenaltyResponse>(MetaType.ReceivedPenalty, GetReceivedPenaltiesMeta);
+                GetProfileMeta);
-            _metaService.AddRuntimeMeta<ClientPaginationRequest, AdministeredPenaltyResponse>(MetaType.Penalized, GetAdministeredPenaltiesMeta);
+            _metaService.AddRuntimeMeta<ClientPaginationRequest, ReceivedPenaltyResponse>(MetaType.ReceivedPenalty,
-            _metaService.AddRuntimeMeta<ClientPaginationRequest, UpdatedAliasResponse>(MetaType.AliasUpdate, GetUpdatedAliasMeta);
+                GetReceivedPenaltiesMeta);
-            _metaService.AddRuntimeMeta<ClientPaginationRequest, ConnectionHistoryResponse>(MetaType.ConnectionHistory, GetConnectionHistoryMeta);
+            _metaService.AddRuntimeMeta<ClientPaginationRequest, AdministeredPenaltyResponse>(MetaType.Penalized,
+                GetAdministeredPenaltiesMeta);
+            _metaService.AddRuntimeMeta<ClientPaginationRequest, UpdatedAliasResponse>(MetaType.AliasUpdate,
+                GetUpdatedAliasMeta);
+            _metaService.AddRuntimeMeta<ClientPaginationRequest, ConnectionHistoryResponse>(MetaType.ConnectionHistory,
+                GetConnectionHistoryMeta);
             _metaService.AddRuntimeMeta<ClientPaginationRequest, PermissionLevelChangedResponse>(
                 MetaType.PermissionLevel, GetPermissionLevelMeta);
         }
 
-        private async Task<IEnumerable<InformationResponse>> GetProfileMeta(ClientPaginationRequest request)
+        private async Task<IEnumerable<InformationResponse>> GetProfileMeta(ClientPaginationRequest request,
+            CancellationToken cancellationToken = default)
         {
             var metaList = new List<InformationResponse>();
-            var lastMapMeta = await _metaService.GetPersistentMeta("LastMapPlayed", new EFClient() { ClientId = request.ClientId });
+            var lastMapMeta =
+                await _metaService.GetPersistentMeta("LastMapPlayed", request.ClientId, cancellationToken);
 
             if (lastMapMeta != null)
             {
@@ -75,7 +88,8 @@ namespace IW4MAdmin.Application.Meta
                 });
             }
 
-            var lastServerMeta = await _metaService.GetPersistentMeta("LastServerPlayed", new EFClient() { ClientId = request.ClientId });
+            var lastServerMeta =
+                await _metaService.GetPersistentMeta("LastServerPlayed", request.ClientId, cancellationToken);
 
             if (lastServerMeta != null)
             {
@@ -96,7 +110,7 @@ namespace IW4MAdmin.Application.Meta
 
             if (client == null)
             {
-                _logger.LogWarning("No client found with id {clientId} when generating profile meta", request.ClientId);
+                _logger.LogWarning("No client found with id {ClientId} when generating profile meta", request.ClientId);
                 return metaList;
             }
 
@@ -137,7 +151,8 @@ namespace IW4MAdmin.Application.Meta
             {
                 ClientId = client.ClientId,
                 Key = Utilities.CurrentLocalization.LocalizationIndex["WEBFRONT_CLIENT_META_CONNECTIONS"],
-                Value = client.Connections.ToString("#,##0", new System.Globalization.CultureInfo(Utilities.CurrentLocalization.LocalizationName)),
+                Value = client.Connections.ToString("#,##0",
+                    new System.Globalization.CultureInfo(Utilities.CurrentLocalization.LocalizationName)),
                 ShouldDisplay = true,
                 Column = 1,
                 Order = 3,
@@ -148,7 +163,9 @@ namespace IW4MAdmin.Application.Meta
             {
                 ClientId = client.ClientId,
                 Key = Utilities.CurrentLocalization.LocalizationIndex["WEBFRONT_CLIENT_META_MASKED"],
-                Value = client.Masked ? Utilities.CurrentLocalization.LocalizationIndex["WEBFRONT_CLIENT_META_TRUE"] : Utilities.CurrentLocalization.LocalizationIndex["WEBFRONT_CLIENT_META_FALSE"],
+                Value = client.Masked
+                    ? Utilities.CurrentLocalization.LocalizationIndex["WEBFRONT_CLIENT_META_TRUE"]
+                    : Utilities.CurrentLocalization.LocalizationIndex["WEBFRONT_CLIENT_META_FALSE"],
                 IsSensitive = true,
                 Column = 1,
                 Order = 4,
@@ -158,32 +175,36 @@ namespace IW4MAdmin.Application.Meta
             return metaList;
         }
 
-        private async Task<IEnumerable<ReceivedPenaltyResponse>> GetReceivedPenaltiesMeta(ClientPaginationRequest request)
+        private async Task<IEnumerable<ReceivedPenaltyResponse>> GetReceivedPenaltiesMeta(
+            ClientPaginationRequest request, CancellationToken token = default)
         {
             var penalties = await _receivedPenaltyHelper.QueryResource(request);
             return penalties.Results;
         }
 
-        private async Task<IEnumerable<AdministeredPenaltyResponse>> GetAdministeredPenaltiesMeta(ClientPaginationRequest request)
+        private async Task<IEnumerable<AdministeredPenaltyResponse>> GetAdministeredPenaltiesMeta(
+            ClientPaginationRequest request, CancellationToken token = default)
         {
             var penalties = await _administeredPenaltyHelper.QueryResource(request);
             return penalties.Results;
         }
 
-        private async Task<IEnumerable<UpdatedAliasResponse>> GetUpdatedAliasMeta(ClientPaginationRequest request)
+        private async Task<IEnumerable<UpdatedAliasResponse>> GetUpdatedAliasMeta(ClientPaginationRequest request,
+            CancellationToken token = default)
         {
             var aliases = await _updatedAliasHelper.QueryResource(request);
             return aliases.Results;
         }
-        
+
-        private async Task<IEnumerable<ConnectionHistoryResponse>> GetConnectionHistoryMeta(ClientPaginationRequest request)
+        private async Task<IEnumerable<ConnectionHistoryResponse>> GetConnectionHistoryMeta(
+            ClientPaginationRequest request, CancellationToken token = default)
         {
             var connections = await _connectionHistoryHelper.QueryResource(request);
             return connections.Results;
         }
 
         private async Task<IEnumerable<PermissionLevelChangedResponse>> GetPermissionLevelMeta(
-            ClientPaginationRequest request)
+            ClientPaginationRequest request, CancellationToken token = default)
         {
             var permissionChanges = await _permissionLevelHelper.QueryResource(request);
             return permissionChanges.Results;

Application/Misc/MetaServiceV2.cs

@@ -0,0 +1,500 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+using Data.Abstractions;
+using Data.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using SharedLibraryCore.Dtos;
+using SharedLibraryCore.Interfaces;
+using SharedLibraryCore.QueryHelper;
+using ILogger = Microsoft.Extensions.Logging.ILogger;
+
+namespace IW4MAdmin.Application.Misc;
+
+public class MetaServiceV2 : IMetaServiceV2
+{
+    private readonly IDictionary<MetaType, List<dynamic>> _metaActions;
+    private readonly IDatabaseContextFactory _contextFactory;
+    private readonly ILogger _logger;
+
+    public MetaServiceV2(ILogger<MetaServiceV2> logger, IDatabaseContextFactory contextFactory)
+    {
+        _logger = logger;
+        _metaActions = new Dictionary<MetaType, List<dynamic>>();
+        _contextFactory = contextFactory;
+    }
+
+    public async Task SetPersistentMeta(string metaKey, string metaValue, int clientId,
+        CancellationToken token = default)
+    {
+        if (!ValidArgs(metaKey, clientId))
+        {
+            return;
+        }
+
+        await using var context = _contextFactory.CreateContext();
+
+        var existingMeta = await context.EFMeta
+            .Where(meta => meta.Key == metaKey)
+            .Where(meta => meta.ClientId == clientId)
+            .FirstOrDefaultAsync(token);
+
+        if (existingMeta != null)
+        {
+            _logger.LogDebug("Updating existing meta with key {Key} and id {Id}", existingMeta.Key,
+                existingMeta.MetaId);
+            existingMeta.Value = metaValue;
+            existingMeta.Updated = DateTime.UtcNow;
+        }
+
+        else
+        {
+            _logger.LogDebug("Adding new meta with key {Key}", metaKey);
+            context.EFMeta.Add(new EFMeta
+            {
+                ClientId = clientId,
+                Created = DateTime.UtcNow,
+                Key = metaKey,
+                Value = metaValue,
+            });
+        }
+
+        await context.SaveChangesAsync(token);
+    }
+
+    public async Task SetPersistentMetaValue<T>(string metaKey, T metaValue, int clientId,
+        CancellationToken token = default) where T : class
+    {
+        if (!ValidArgs(metaKey, clientId))
+        {
+            return;
+        }
+
+        string serializedValue;
+
+        try
+        {
+            serializedValue = JsonSerializer.Serialize(metaValue);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Could not serialize meta with key {Key}", metaKey);
+            return;
+        }
+
+        await SetPersistentMeta(metaKey, serializedValue, clientId, token);
+    }
+
+    public async Task SetPersistentMetaForLookupKey(string metaKey, string lookupKey, int lookupId, int clientId,
+        CancellationToken token = default)
+    {
+        if (!ValidArgs(metaKey, clientId))
+        {
+            return;
+        }
+
+        await using var context = _contextFactory.CreateContext();
+
+        var lookupMeta = await context.EFMeta.FirstOrDefaultAsync(meta => meta.Key == lookupKey, token);
+
+        if (lookupMeta is null)
+        {
+            _logger.LogWarning("No lookup meta exists for metaKey {MetaKey} and lookupKey {LookupKey}", metaKey,
+                lookupKey);
+            return;
+        }
+
+        var lookupValues = JsonSerializer.Deserialize<List<LookupValue<string>>>(lookupMeta.Value);
+
+        if (lookupValues is null)
+        {
+            return;
+        }
+
+        var foundLookup = lookupValues.FirstOrDefault(value => value.Id == lookupId);
+
+        if (foundLookup is null)
+        {
+            _logger.LogWarning("No lookup meta found for provided lookup id {MetaKey}, {LookupKey}, {LookupId}",
+                metaKey, lookupKey, lookupId);
+            return;
+        }
+
+        _logger.LogDebug("Setting meta for lookup {MetaKey}, {LookupKey}, {LookupId}",
+            metaKey, lookupKey, lookupId);
+
+        await SetPersistentMeta(metaKey, lookupId.ToString(), clientId, token);
+    }
+
+    public async Task IncrementPersistentMeta(string metaKey, int incrementAmount, int clientId,
+        CancellationToken token = default)
+    {
+        if (!ValidArgs(metaKey, clientId))
+        {
+            return;
+        }
+
+        var existingMeta = await GetPersistentMeta(metaKey, clientId, token);
+
+        if (!long.TryParse(existingMeta?.Value ?? "0", out var existingValue))
+        {
+            existingValue = 0;
+        }
+
+        var newValue = existingValue + incrementAmount;
+        await SetPersistentMeta(metaKey, newValue.ToString(), clientId, token);
+    }
+
+    public async Task DecrementPersistentMeta(string metaKey, int decrementAmount, int clientId,
+        CancellationToken token = default)
+    {
+        await IncrementPersistentMeta(metaKey, -decrementAmount, clientId, token);
+    }
+
+    public async Task<EFMeta> GetPersistentMeta(string metaKey, int clientId, CancellationToken token = default)
+    {
+        if (!ValidArgs(metaKey, clientId))
+        {
+            return null;
+        }
+
+        await using var ctx = _contextFactory.CreateContext(enableTracking: false);
+
+        return await ctx.EFMeta
+            .Where(meta => meta.Key == metaKey)
+            .Where(meta => meta.ClientId == clientId)
+            .Select(meta => new EFMeta
+            {
+                MetaId = meta.MetaId,
+                Key = meta.Key,
+                ClientId = meta.ClientId,
+                Value = meta.Value,
+            })
+            .FirstOrDefaultAsync(token);
+    }
+
+    public async Task<T> GetPersistentMetaValue<T>(string metaKey, int clientId, CancellationToken token = default)
+        where T : class
+    {
+        var meta = await GetPersistentMeta(metaKey, clientId, token);
+
+        if (meta is null)
+        {
+            return default;
+        }
+
+        try
+        {
+            return JsonSerializer.Deserialize<T>(meta.Value);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Could not deserialize meta with key {Key} and value {Value}", metaKey, meta.Value);
+            return default;
+        }
+    }
+
+    public async Task<EFMeta> GetPersistentMetaByLookup(string metaKey, string lookupKey, int clientId,
+        CancellationToken token = default)
+    {
+        await using var context = _contextFactory.CreateContext();
+
+        var metaValue = await GetPersistentMeta(metaKey, clientId, token);
+
+        if (metaValue is null)
+        {
+            _logger.LogWarning("No meta exists for key {Key}, clientId {ClientId}", metaKey, clientId);
+            return default;
+        }
+
+        var lookupMeta = await context.EFMeta.FirstOrDefaultAsync(meta => meta.Key == lookupKey, token);
+
+        if (lookupMeta is null)
+        {
+            _logger.LogWarning("No lookup meta exists for metaKey {MetaKey} and lookupKey {LookupKey}", metaKey,
+                lookupKey);
+            return default;
+        }
+
+        var lookupId = int.Parse(metaValue.Value);
+        var lookupValues = JsonSerializer.Deserialize<List<LookupValue<string>>>(lookupMeta.Value);
+
+        if (lookupValues is null)
+        {
+            return default;
+        }
+
+        var foundLookup = lookupValues.FirstOrDefault(value => value.Id == lookupId);
+
+        if (foundLookup is not null)
+        {
+            return new EFMeta
+            {
+                Created = metaValue.Created,
+                Updated = metaValue.Updated,
+                Extra = metaValue.Extra,
+                MetaId = metaValue.MetaId,
+                Value = foundLookup.Value
+            };
+        }
+
+        _logger.LogWarning("No lookup meta found for provided lookup id {MetaKey}, {LookupKey}, {LookupId}",
+            metaKey, lookupKey, lookupId);
+        return default;
+    }
+
+    public async Task RemovePersistentMeta(string metaKey, int clientId, CancellationToken token = default)
+    {
+        if (!ValidArgs(metaKey, clientId))
+        {
+            return;
+        }
+
+        await using var context = _contextFactory.CreateContext();
+
+        var existingMeta = await context.EFMeta
+            .FirstOrDefaultAsync(meta => meta.Key == metaKey && meta.ClientId == clientId, token);
+
+        if (existingMeta == null)
+        {
+            _logger.LogDebug("No meta with key {Key} found for client id {Id}", metaKey, clientId);
+            return;
+        }
+
+        _logger.LogDebug("Removing meta for key {Key} with id {Id}", metaKey, existingMeta.MetaId);
+        context.EFMeta.Remove(existingMeta);
+        await context.SaveChangesAsync(token);
+    }
+
+    public async Task SetPersistentMeta(string metaKey, string metaValue, CancellationToken token = default)
+    {
+        if (string.IsNullOrWhiteSpace(metaKey))
+        {
+            _logger.LogWarning("Cannot save meta with no key");
+            return;
+        }
+
+        await using var ctx = _contextFactory.CreateContext();
+
+        var existingMeta = await ctx.EFMeta
+            .Where(meta => meta.Key == metaKey)
+            .Where(meta => meta.ClientId == null)
+            .FirstOrDefaultAsync(token);
+
+        if (existingMeta is not null)
+        {
+            _logger.LogDebug("Updating existing meta with key {Key} and id {Id}", existingMeta.Key,
+                existingMeta.MetaId);
+
+            existingMeta.Value = metaValue;
+            existingMeta.Updated = DateTime.UtcNow;
+
+            await ctx.SaveChangesAsync(token);
+        }
+
+        else
+        {
+            _logger.LogDebug("Adding new meta with key {Key}", metaKey);
+
+            ctx.EFMeta.Add(new EFMeta
+            {
+                Created = DateTime.UtcNow,
+                Key = metaKey,
+                Value = metaValue
+            });
+
+            await ctx.SaveChangesAsync(token);
+        }
+    }
+
+    public async Task SetPersistentMetaValue<T>(string metaKey, T metaValue, CancellationToken token = default)
+        where T : class
+    {
+        if (string.IsNullOrWhiteSpace(metaKey))
+        {
+            _logger.LogWarning("Meta key is null, not setting");
+            return;
+        }
+
+        if (metaValue is null)
+        {
+            _logger.LogWarning("Meta value is null, not setting");
+            return;
+        }
+
+        string serializedMeta;
+        try
+        {
+            serializedMeta = JsonSerializer.Serialize(metaValue);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Could not serialize meta with {Key} and value {Value}", metaKey, metaValue);
+            return;
+        }
+
+        await SetPersistentMeta(metaKey, serializedMeta, token);
+    }
+
+    public async Task<EFMeta> GetPersistentMeta(string metaKey, CancellationToken token = default)
+    {
+        if (string.IsNullOrWhiteSpace(metaKey))
+        {
+            return null;
+        }
+
+        await using var context = _contextFactory.CreateContext(false);
+        return await context.EFMeta.FirstOrDefaultAsync(meta => meta.Key == metaKey, token);
+    }
+
+    public async Task<T> GetPersistentMetaValue<T>(string metaKey, CancellationToken token = default) where T : class
+    {
+        if (string.IsNullOrWhiteSpace(metaKey))
+        {
+            return default;
+        }
+
+        var meta = await GetPersistentMeta(metaKey, token);
+
+        if (meta is null)
+        {
+            return default;
+        }
+
+        try
+        {
+            return JsonSerializer.Deserialize<T>(meta.Value);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Could not serialize meta with key {Key} and value {Value}", metaKey, meta.Value);
+            return default;
+        }
+    }
+
+    public async Task RemovePersistentMeta(string metaKey, CancellationToken token = default)
+    {
+        if (string.IsNullOrWhiteSpace(metaKey))
+        {
+            return;
+        }
+
+        await using var context = _contextFactory.CreateContext(enableTracking: false);
+
+        var existingMeta = await context.EFMeta
+            .Where(meta => meta.Key == metaKey)
+            .Where(meta => meta.ClientId == null)
+            .FirstOrDefaultAsync(token);
+
+        if (existingMeta != null)
+        {
+            _logger.LogDebug("Removing meta for key {Key} with id {Id}", metaKey, existingMeta.MetaId);
+            context.Remove(existingMeta);
+            await context.SaveChangesAsync(token);
+        }
+    }
+
+    public void AddRuntimeMeta<T, TReturnType>(MetaType metaKey,
+        Func<T, CancellationToken, Task<IEnumerable<TReturnType>>> metaAction)
+        where T : PaginationRequest where TReturnType : IClientMeta
+    {
+        if (!_metaActions.ContainsKey(metaKey))
+        {
+            _metaActions.Add(metaKey, new List<dynamic> { metaAction });
+        }
+
+        else
+        {
+            _metaActions[metaKey].Add(metaAction);
+        }
+    }
+
+    public async Task<IEnumerable<IClientMeta>> GetRuntimeMeta(ClientPaginationRequest request, CancellationToken token = default)
+    {
+        var metas = await Task.WhenAll(_metaActions.Where(kvp => kvp.Key != MetaType.Information)
+            .Select(async kvp => await kvp.Value[0](request, token)));
+
+        return metas.SelectMany(m => (IEnumerable<IClientMeta>)m)
+            .OrderByDescending(m => m.When)
+            .Take(request.Count)
+            .ToList();
+    }
+
+    public async Task<IEnumerable<T>> GetRuntimeMeta<T>(ClientPaginationRequest request, MetaType metaType,  CancellationToken token = default)
+        where T : IClientMeta
+    {
+        if (metaType == MetaType.Information)
+        {
+            var allMeta = new List<T>();
+
+            var completedMeta = await Task.WhenAll(_metaActions[metaType].Select(async individualMetaRegistration =>
+                (IEnumerable<T>)await individualMetaRegistration(request, token)));
+
+            allMeta.AddRange(completedMeta.SelectMany(meta => meta));
+
+            return ProcessInformationMeta(allMeta);
+        }
+
+        var meta = await _metaActions[metaType][0](request) as IEnumerable<T>;
+
+        return meta;
+    }
+
+    private static IEnumerable<T> ProcessInformationMeta<T>(IEnumerable<T> meta) where T : IClientMeta
+    {
+        var metaList = meta.ToList();
+        var metaWithColumn = metaList
+            .Where(m => m.Column != null)
+            .ToList();
+
+        var columnGrouping = metaWithColumn
+            .GroupBy(m => m.Column)
+            .ToList();
+
+        var metaToSort = metaList.Except(metaWithColumn).ToList();
+
+        var table = columnGrouping.Select(metaItem => new List<T>(metaItem)).ToList();
+
+        while (metaToSort.Count > 0)
+        {
+            var sortingMeta = metaToSort.First();
+
+            int IndexOfSmallestColumn()
+            {
+                var index = 0;
+                var smallestColumnSize = int.MaxValue;
+                for (var i = 0; i < table.Count; i++)
+                {
+                    if (table[i].Count >= smallestColumnSize)
+                    {
+                        continue;
+                    }
+
+                    smallestColumnSize = table[i].Count;
+                    index = i;
+                }
+
+                return index;
+            }
+
+            var columnIndex = IndexOfSmallestColumn();
+
+            sortingMeta.Column = columnIndex;
+            sortingMeta.Order = columnGrouping
+                .First(group => group.Key == columnIndex)
+                .Count();
+
+            table[columnIndex].Add(sortingMeta);
+
+            metaToSort.Remove(sortingMeta);
+        }
+
+        return metaList;
+    }
+
+    private static bool ValidArgs(string key, int clientId) => !string.IsNullOrWhiteSpace(key) && clientId > 0;
+}

Data/Models/EFMeta.cs

@@ -10,8 +10,8 @@ namespace Data.Models
     /// </summary>
     public class EFMeta : SharedEntity
     {
-        public const string ClientTagName = nameof(ClientTagName);
+        public const string ClientTagNameV2 = nameof(ClientTagNameV2);
-        public const string ClientTag = nameof(ClientTag);
+        public const string ClientTagV2 = nameof(ClientTagV2);
 
         [Key]
         public int MetaId { get; set; }

SharedLibraryCore/Commands/AddClientTagCommand.cs

@@ -1,39 +0,0 @@
-using System.Threading.Tasks;
-using Data.Models;
-using Data.Models.Client;
-using SharedLibraryCore.Configuration;
-using SharedLibraryCore.Interfaces;
-
-namespace SharedLibraryCore.Commands
-{
-    public class AddClientTagCommand : Command
-    {
-        private readonly IMetaService _metaService;
-
-        public AddClientTagCommand(CommandConfiguration config, ITranslationLookup layout, IMetaService metaService) :
-            base(config, layout)
-        {
-            Name = "addclienttag";
-            Description = layout["COMMANDS_ADD_CLIENT_TAG_DESC"];
-            Alias = "act";
-            Permission = EFClient.Permission.Owner;
-            RequiresTarget = false;
-            Arguments = new[]
-            {
-                new CommandArgument
-                {
-                    Name = _translationLookup["COMMANDS_ARGUMENT_TAG"],
-                    Required = true
-                }
-            };
-
-            _metaService = metaService;
-        }
-
-        public override async Task ExecuteAsync(GameEvent gameEvent)
-        {
-            await _metaService.AddPersistentMeta(EFMeta.ClientTagName, gameEvent.Data);
-            gameEvent.Origin.Tell(_translationLookup["COMMANDS_ADD_CLIENT_TAG_SUCCESS"].FormatExt(gameEvent.Data));
-        }
-    }
-}

SharedLibraryCore/Commands/NativeCommands.cs

@@ -1137,10 +1137,10 @@ namespace SharedLibraryCore.Commands
     /// </summary>
     public class SetGravatarCommand : Command
     {
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
 
         public SetGravatarCommand(CommandConfiguration config, ITranslationLookup translationLookup,
-            IMetaService metaService) : base(config, translationLookup)
+            IMetaServiceV2 metaService) : base(config, translationLookup)
         {
             Name = "setgravatar";
             Description = _translationLookup["COMMANDS_GRAVATAR_DESC"];
@@ -1166,7 +1166,8 @@ namespace SharedLibraryCore.Commands
                 var gravatarEmail = string.Concat(md5
                     .ComputeHash(E.Data.ToLower().Select(d => Convert.ToByte(d)).ToArray())
                     .Select(h => h.ToString("x2")));
-                await _metaService.AddPersistentMeta("GravatarEmail", gravatarEmail, E.Origin);
+                await _metaService.SetPersistentMeta("GravatarEmail", gravatarEmail, E.Origin.ClientId,
+                    E.Owner.Manager.CancellationToken);
             }
 
             E.Origin.Tell(_translationLookup["COMMANDS_GRAVATAR_SUCCESS_NEW"]);

SharedLibraryCore/Dtos/LookupValue.cs

@@ -0,0 +1,9 @@
+using SharedLibraryCore.Interfaces;
+
+namespace SharedLibraryCore.Dtos;
+
+public class LookupValue<TObject> : ILookupValue<TObject>
+{
+    public int Id { get; set; }
+    public TObject Value { get; set; }
+}

SharedLibraryCore/Interfaces/ILookupValue.cs

@@ -0,0 +1,7 @@
+namespace SharedLibraryCore.Interfaces;
+
+public interface ILookupValue<TObject>
+{
+    int Id { get; }
+    TObject Value { get; }
+}

SharedLibraryCore/Interfaces/IMetaServiceV2.cs

@@ -0,0 +1,194 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Data.Models;
+using SharedLibraryCore.Dtos;
+using SharedLibraryCore.QueryHelper;
+
+namespace SharedLibraryCore.Interfaces;
+
+public interface IMetaServiceV2
+{
+    #region PER_CLIENT
+
+    /// <summary>
+    /// adds or updates meta key and value to the database as simple string
+    /// </summary>
+    /// <param name="metaKey">key of meta data</param>
+    /// <param name="metaValue">value of the meta data</param>
+    /// <param name="clientId">id of the client to save the meta for</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task SetPersistentMeta(string metaKey, string metaValue, int clientId, CancellationToken token = default);
+
+    /// <summary>
+    /// add or update meta key and value to the database as serialized object type
+    /// </summary>
+    /// <param name="metaKey"></param>
+    /// <param name="metaValue"></param>
+    /// <param name="clientId"></param>
+    /// <param name="token"></param>
+    /// <typeparam name="T">type of object being serialized</typeparam>
+    /// <returns></returns>
+    Task SetPersistentMetaValue<T>(string metaKey, T metaValue, int clientId, CancellationToken token = default)
+        where T : class;
+
+    /// <summary>
+    /// Sets meta key to a linked lookup key and id
+    /// </summary>
+    /// <param name="metaKey">Key for the client meta</param>
+    /// <param name="lookupKey">Key of the global lookup meta</param>
+    /// <param name="lookupId">Id in the list of lookup values</param>
+    /// <param name="clientId">id of the client</param>
+    /// <param name="token"></param>
+    /// <typeparam name="T"></typeparam>
+    /// <returns></returns>
+    Task SetPersistentMetaForLookupKey(string metaKey, string lookupKey, int lookupId, int clientId,
+        CancellationToken token = default);
+
+    /// <summary>
+    /// increments meta value and persists to the database
+    /// <remarks>if the meta value does not already exist it will be set to the increment amount</remarks>
+    /// <remarks>the assumption is made that the existing value is <see cref="int"/></remarks>
+    /// </summary>
+    /// <param name="metaKey">key of meta data</param>
+    /// <param name="incrementAmount">value to increment by</param>
+    /// <param name="clientId">id of the client to save the meta for</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task IncrementPersistentMeta(string metaKey, int incrementAmount, int clientId,
+        CancellationToken token = default);
+
+    /// <summary>
+    /// decrements meta value and persists to the database
+    /// <remarks>if the meta value does not already exist it will be set to the decrement amount</remarks>
+    /// <remarks>the assumption is made that the existing value is <see cref="int"/></remarks>
+    /// </summary>
+    /// <param name="metaKey">key of meta data</param>
+    /// <param name="decrementAmount">value to increment by</param>
+    /// <param name="clientId">id of the client to save the meta for</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task DecrementPersistentMeta(string metaKey, int decrementAmount, int clientId,
+        CancellationToken token = default);
+
+    /// <summary>
+    /// retrieves meta entry
+    /// </summary>
+    /// <param name="metaKey"></param>
+    /// <param name="clientId"></param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task<EFMeta> GetPersistentMeta(string metaKey, int clientId, CancellationToken token = default);
+
+    /// <summary>
+    /// retrieves meta value as deserialized object
+    /// </summary>
+    /// <param name="metaKey"></param>
+    /// <param name="clientId"></param>
+    /// <param name="token"></param>
+    /// <typeparam name="T">object type to deserialize into</typeparam>
+    /// <returns></returns>
+    Task<T> GetPersistentMetaValue<T>(string metaKey, int clientId, CancellationToken token = default)
+        where T : class;
+
+    /// <summary>
+    /// retrieves meta entry by with associated lookup value as string
+    /// </summary>
+    /// <param name="metaKey"></param>
+    /// <param name="lookupKey"></param>
+    /// <param name="clientId"></param>
+    /// <param name="token"></param>
+    /// <typeparam name="T"></typeparam>
+    /// <returns></returns>
+    Task<EFMeta> GetPersistentMetaByLookup(string metaKey, string lookupKey, int clientId,
+        CancellationToken token = default);
+
+    /// <summary>
+    /// removes meta key with given value
+    /// </summary>
+    /// <param name="metaKey">key of meta data</param>
+    /// <param name="clientId">client to delete the meta for</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task RemovePersistentMeta(string metaKey, int clientId, CancellationToken token = default);
+
+    #endregion
+
+    #region GLOBAL
+
+    /// <summary>
+    /// adds or updates meta key and value to the database
+    /// </summary>
+    /// <param name="metaKey">key of meta data</param>
+    /// <param name="metaValue">value of the meta data</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task SetPersistentMeta(string metaKey, string metaValue, CancellationToken token = default);
+
+    /// <summary>
+    /// serializes and sets (create or update) meta key and value
+    /// </summary>
+    /// <param name="metaKey"></param>
+    /// <param name="metaValue"></param>
+    /// <param name="token"></param>
+    /// <typeparam name="T"></typeparam>
+    /// <returns></returns>
+    Task SetPersistentMetaValue<T>(string metaKey, T metaValue, CancellationToken token = default) where T : class;
+
+    /// <summary>
+    /// removes meta key with given value
+    /// </summary>
+    /// <param name="metaKey">key of the meta data</param>
+    /// <param name="metaValue">value of the meta data</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task RemovePersistentMeta(string metaKey, CancellationToken token = default);
+
+    /// <summary>
+    /// retrieves collection of meta for given key
+    /// </summary>
+    /// <param name="metaKey">key to retrieve values for</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task<EFMeta> GetPersistentMeta(string metaKey, CancellationToken token = default);
+
+    /// <summary>
+    /// returns value of meta key if it exists
+    /// </summary>
+    /// <param name="metaKey"></param>
+    /// <param name="token"></param>
+    /// <typeparam name="T"></typeparam>
+    /// <returns></returns>
+    Task<T> GetPersistentMetaValue<T>(string metaKey, CancellationToken token = default) where T : class;
+
+    #endregion
+
+    /// <summary>
+    /// adds a meta task to the runtime meta list
+    /// </summary>
+    /// <param name="metaKey">type of meta</param>
+    /// <param name="metaAction">action to perform</param>
+    void AddRuntimeMeta<T, TReturn>(MetaType metaKey,
+        Func<T, CancellationToken, Task<IEnumerable<TReturn>>> metaAction)
+        where TReturn : IClientMeta where T : PaginationRequest;
+
+    /// <summary>
+    /// retrieves all the runtime meta information for given client idea
+    /// </summary>
+    /// <param name="request">request information</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task<IEnumerable<IClientMeta>> GetRuntimeMeta(ClientPaginationRequest request, CancellationToken token = default);
+
+    /// <summary>
+    /// retrieves all the runtime of provided type
+    /// </summary>
+    /// <param name="request">>request information</param>
+    /// <param name="metaType">type of meta to retreive</param>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    Task<IEnumerable<T>> GetRuntimeMeta<T>(ClientPaginationRequest request, MetaType metaType, CancellationToken token = default)
+        where T : IClientMeta;
+}

SharedLibraryCore/PartialEntities/EFClient.cs

@@ -124,8 +124,8 @@ namespace SharedLibraryCore.Database.Models
         [NotMapped]
         public string Tag
         {
-            get => GetAdditionalProperty<string>(EFMeta.ClientTag);
+            get => GetAdditionalProperty<string>(EFMeta.ClientTagV2);
-            set => SetAdditionalProperty(EFMeta.ClientTag, value);
+            set => SetAdditionalProperty(EFMeta.ClientTagV2, value);
         }
 
         [NotMapped]

WebfrontCore/Controllers/Client/ClientController.cs

@@ -8,6 +8,7 @@ using SharedLibraryCore.QueryHelper;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using Data.Models;
 using Stats.Config;
@@ -17,16 +18,16 @@ namespace WebfrontCore.Controllers
 {
     public class ClientController : BaseController
     {
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
         private readonly StatsConfiguration _config;
 
-        public ClientController(IManager manager, IMetaService metaService, StatsConfiguration config) : base(manager)
+        public ClientController(IManager manager, IMetaServiceV2 metaService, StatsConfiguration config) : base(manager)
         {
             _metaService = metaService;
             _config = config;
         }
 
-        public async Task<IActionResult> ProfileAsync(int id, MetaType? metaFilterType)
+        public async Task<IActionResult> ProfileAsync(int id, MetaType? metaFilterType, CancellationToken token = default)
         {
             var client = await Manager.GetClientService().Get(id);
 
@@ -40,17 +41,17 @@ namespace WebfrontCore.Controllers
 
             var persistentMetaTask = new[]
             {
-                _metaService.GetPersistentMeta(EFMeta.ClientTag, client),
+                _metaService.GetPersistentMetaByLookup(EFMeta.ClientTagV2, EFMeta.ClientTagNameV2, client.ClientId, token),
-                _metaService.GetPersistentMeta("GravatarEmail", client)
+                _metaService.GetPersistentMeta("GravatarEmail", client.ClientId, token)
             };
 
             var persistentMeta = await Task.WhenAll(persistentMetaTask);
             var tag = persistentMeta[0];
             var gravatar = persistentMeta[1];
 
-            if (tag?.LinkedMeta != null)
+            if (tag?.Value != null)
             {
-                client.SetAdditionalProperty(EFMeta.ClientTag, tag.LinkedMeta.Value);
+                client.SetAdditionalProperty(EFMeta.ClientTagV2, tag.Value);
             }
 
             // even though we haven't set their level to "banned" yet

WebfrontCore/Startup.cs

@@ -116,13 +116,14 @@ namespace WebfrontCore
             // todo: this needs to be handled more gracefully
             services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<DefaultSettings>());
             services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<ILoggerFactory>());
-            services.AddSingleton(Program.ApplicationServiceProvider.GetService<IConfigurationHandlerFactory>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<IConfigurationHandlerFactory>());
-            services.AddSingleton(Program.ApplicationServiceProvider.GetService<IDatabaseContextFactory>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<IDatabaseContextFactory>());
-            services.AddSingleton(Program.ApplicationServiceProvider.GetService<IAuditInformationRepository>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<IAuditInformationRepository>());
-            services.AddSingleton(Program.ApplicationServiceProvider.GetService<ITranslationLookup>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<ITranslationLookup>());
-            services.AddSingleton(Program.ApplicationServiceProvider.GetService<IEnumerable<IManagerCommand>>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<IEnumerable<IManagerCommand>>());
-            services.AddSingleton(Program.ApplicationServiceProvider.GetService<IMetaService>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<IMetaService>());
-            services.AddSingleton(Program.ApplicationServiceProvider.GetService<ApplicationConfiguration>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<IMetaServiceV2>());
+            services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<ApplicationConfiguration>());
             services.AddSingleton(Program.ApplicationServiceProvider.GetRequiredService<ClientService>());
             services.AddSingleton(
                 Program.ApplicationServiceProvider.GetRequiredService<IServerDistributionCalculator>());

WebfrontCore/ViewComponents/ProfileMetaListViewComponent.cs

@@ -13,9 +13,9 @@ namespace WebfrontCore.ViewComponents
 {
     public class ProfileMetaListViewComponent : ViewComponent
     {
-        private readonly IMetaService _metaService;
+        private readonly IMetaServiceV2 _metaService;
 
-        public ProfileMetaListViewComponent(IMetaService metaService)
+        public ProfileMetaListViewComponent(IMetaServiceV2 metaService)
         {
             _metaService = metaService;
         }
@@ -38,7 +38,7 @@ namespace WebfrontCore.ViewComponents
             return View("_List", meta);
         }
 
-        public static async Task<IEnumerable<IClientMeta>> GetClientMeta(IMetaService metaService, MetaType? metaType,
+        public static async Task<IEnumerable<IClientMeta>> GetClientMeta(IMetaServiceV2 metaService, MetaType? metaType,
             EFClient.Permission level, ClientPaginationRequest request)
         {
             IEnumerable<IClientMeta> meta = null;