await usings and minor cleanup

src/NadekoBot/Bot.cs

@@ -279,7 +279,7 @@ public sealed class Bot
         var _ = Task.Run(async () =>
         {
             GuildConfig gc;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 gc = uow.GuildConfigsForId(arg.Id);
             }

src/NadekoBot/Common/Replacements/ReplacementBuilder.cs

@@ -155,7 +155,7 @@ public class ReplacementBuilder
         _reps.TryAdd("%users%", () => c.Guilds.Sum(g => g.MemberCount).ToString());
 
         /*NEW*/
-        _reps.TryAdd("%shard.servercount%", () => c.Guilds.Count.ToString());S
+        _reps.TryAdd("%shard.servercount%", () => c.Guilds.Count.ToString());
         _reps.TryAdd("%shard.usercount%", () => c.Guilds.Sum(g => g.MemberCount).ToString());
         _reps.TryAdd("%shard.id%", () => c.ShardId.ToString());
         return this;

src/NadekoBot/Modules/Administration/SelfAssignedRolesCommands.cs

@@ -135,19 +135,19 @@ public partial class Administration
                     }
 
                     rolesStr.AppendLine("\t\t\t\t ⟪" + groupNameText + "⟫");
-                    foreach (var (Model, Role) in kvp.AsEnumerable())
+                    foreach (var (model, role) in kvp.AsEnumerable())
                     {
-                        if (Role is null)
+                        if (role is null)
                         {
                             continue;
                         }
                         else
                         {
                             // first character is invisible space
-                            if (Model.LevelRequirement == 0)
+                            if (model.LevelRequirement == 0)
-                                rolesStr.AppendLine("‌‌   " + Role.Name);
+                                rolesStr.AppendLine("‌‌   " + role.Name);
                             else
-                                rolesStr.AppendLine("‌‌   " + Role.Name + $" (lvl {Model.LevelRequirement}+)");
+                                rolesStr.AppendLine("‌‌   " + role.Name + $" (lvl {model.LevelRequirement}+)");
                         }
                     }
                     rolesStr.AppendLine();

src/NadekoBot/Modules/Administration/Services/AdministrationService.cs

@@ -90,7 +90,7 @@ public class AdministrationService : INService
 
     public async Task SetDelMsgOnCmdState(ulong guildId, ulong chId, Administration.State newState)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var conf = uow.GuildConfigsForId(guildId,
                 set => set.Include(x => x.DelMsgOnCmdChannels));

src/NadekoBot/Modules/Administration/Services/AutoAssignRoleService.cs

@@ -103,7 +103,7 @@ public sealed class AutoAssignRoleService : INService
 
     public async Task<IReadOnlyList<ulong>> ToggleAarAsync(ulong guildId, ulong roleId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var gc = uow.GuildConfigsForId(guildId, set => set);
         var roles = gc.GetAutoAssignableRoles();
         if(!roles.Remove(roleId) && roles.Count < 3)
@@ -122,7 +122,7 @@ public sealed class AutoAssignRoleService : INService
 
     public async Task DisableAarAsync(ulong guildId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
             
         await uow
             .GuildConfigs
@@ -137,7 +137,7 @@ public sealed class AutoAssignRoleService : INService
 
     public async Task SetAarRolesAsync(ulong guildId, IEnumerable<ulong> newRoles)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
             
         var gc = uow.GuildConfigsForId(guildId, set => set);
         gc.SetAutoAssignableRoles(newRoles);

src/NadekoBot/Modules/Administration/Services/DangerousCommandsService.cs

@@ -42,7 +42,7 @@ DELETE FROM Clubs;";
     public async Task<int> ExecuteSql(string sql)
     {
         int res;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             res = await uow.Database.ExecuteSqlRawAsync(sql);
         }
@@ -92,7 +92,7 @@ DELETE FROM Clubs;";
 
     public async Task PurgeUserAsync(ulong userId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
             
         // get waifu info
         var wi = await uow.Set<WaifuInfo>()

src/NadekoBot/Modules/Administration/Services/DiscordPermOverrideService.cs

@@ -54,7 +54,7 @@ public class DiscordPermOverrideService : INService, ILateBlocker
     public async Task AddOverride(ulong guildId, string commandName, GuildPerm perm)
     {
         commandName = commandName.ToLowerInvariant();
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var over = await uow
                 .Set<DiscordPermOverride>()
@@ -84,7 +84,7 @@ public class DiscordPermOverrideService : INService, ILateBlocker
 
     public async Task ClearAllOverrides(ulong guildId)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var overrides = await uow
                 .Set<DiscordPermOverride>()
@@ -106,8 +106,8 @@ public class DiscordPermOverrideService : INService, ILateBlocker
     public async Task RemoveOverride(ulong guildId, string commandName)
     {
         commandName = commandName.ToLowerInvariant();
-            
+
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var over = await uow
                 .Set<DiscordPermOverride>()

src/NadekoBot/Modules/Administration/Services/LogCommandService.cs

@@ -206,7 +206,7 @@ public sealed class LogCommandService : ILogCommandService
 
     public async Task LogServer(ulong guildId, ulong channelId, bool value)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var logSetting = uow.LogSettingsFor(guildId);
                 

src/NadekoBot/Modules/Administration/Services/MuteService.cs

@@ -171,7 +171,7 @@ public class MuteService : INService
 
     public async Task SetMuteRoleAsync(ulong guildId, string name)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GuildConfigsForId(guildId, set => set);
             config.MuteRoleName = name;
@@ -189,7 +189,7 @@ public class MuteService : INService
             if (!usr.RoleIds.Contains(muteRole.Id))
                 await usr.AddRoleAsync(muteRole).ConfigureAwait(false);
             StopTimer(usr.GuildId, usr.Id, TimerType.Mute);
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(usr.Guild.Id,
                     set => set.Include(gc => gc.MutedUsers)
@@ -229,7 +229,7 @@ public class MuteService : INService
         if (type == MuteType.All)
         {
             StopTimer(guildId, usrId, TimerType.Mute);
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(guildId, set => set.Include(gc => gc.MutedUsers)
                     .Include(gc => gc.UnmuteTimers));
@@ -324,7 +324,7 @@ public class MuteService : INService
     public async Task TimedMute(IGuildUser user, IUser mod, TimeSpan after, MuteType muteType = MuteType.All, string reason = "")
     {
         await MuteUser(user, mod, muteType, reason).ConfigureAwait(false); // mute the user. This will also remove any previous unmute timers
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GuildConfigsForId(user.GuildId, set => set.Include(x => x.UnmuteTimers));
             config.UnmuteTimers.Add(new()
@@ -341,7 +341,7 @@ public class MuteService : INService
     public async Task TimedBan(IGuild guild, IUser user, TimeSpan after, string reason)
     {
         await guild.AddBanAsync(user.Id, 0, reason).ConfigureAwait(false);
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GuildConfigsForId(guild.Id, set => set.Include(x => x.UnbanTimer));
             config.UnbanTimer.Add(new()
@@ -358,7 +358,7 @@ public class MuteService : INService
     public async Task TimedRole(IGuildUser user, TimeSpan after, string reason, IRole role)
     {
         await user.AddRoleAsync(role).ConfigureAwait(false);
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GuildConfigsForId(user.GuildId, set => set.Include(x => x.UnroleTimer));
             config.UnroleTimer.Add(new()

src/NadekoBot/Modules/Administration/Services/PlayingRotateService.cs

@@ -52,7 +52,7 @@ public sealed class PlayingRotateService : INService
             if (!_bss.Data.RotateStatuses) return;
 
             IReadOnlyList<RotatingPlayingStatus> rotatingStatuses;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 rotatingStatuses = uow.RotatingStatus
                     .AsNoTracking()
@@ -81,7 +81,7 @@ public sealed class PlayingRotateService : INService
         if (index < 0)
             throw new ArgumentOutOfRangeException(nameof(index));
 
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var toRemove = await uow.RotatingStatus
             .AsQueryable()
             .AsNoTracking()
@@ -98,7 +98,7 @@ public sealed class PlayingRotateService : INService
 
     public async Task AddPlaying(ActivityType t, string status)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var toAdd = new RotatingPlayingStatus {Status = status, Type = t};
         uow.Add(toAdd);
         await uow.SaveChangesAsync();

src/NadekoBot/Modules/Administration/Services/ProtectionService.cs

@@ -299,7 +299,7 @@ public class ProtectionService : INService
 
         _antiRaidGuilds.AddOrUpdate(guildId, stats, (key, old) => stats);
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var gc = uow.GuildConfigsForId(guildId, set => set.Include(x => x.AntiRaidSetting));
 
@@ -370,7 +370,7 @@ public class ProtectionService : INService
             return stats;
         });
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var gc = uow.GuildConfigsForId(guildId, set => set.Include(x => x.AntiSpamSetting));
 
@@ -397,7 +397,7 @@ public class ProtectionService : INService
             ChannelId = channelId
         };
         bool added;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var gc = uow.GuildConfigsForId(guildId, set => set.Include(x => x.AntiSpamSetting).ThenInclude(x => x.IgnoredChannels));
             var spam = gc.AntiSpamSetting;
@@ -455,7 +455,7 @@ public class ProtectionService : INService
     public async Task StartAntiAltAsync(ulong guildId, int minAgeMinutes, PunishmentAction action,
         int actionDurationMinutes = 0, ulong? roleId = null)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var gc = uow.GuildConfigsForId(guildId, set => set.Include(x => x.AntiAltSetting));
         gc.AntiAltSetting = new()
         {
@@ -473,8 +473,8 @@ public class ProtectionService : INService
     {
         if (!_antiAltGuilds.TryRemove(guildId, out _))
             return false;
-            
+
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var gc = uow.GuildConfigsForId(guildId, set => set.Include(x => x.AntiAltSetting));
         gc.AntiAltSetting = null;
         await uow.SaveChangesAsync();

src/NadekoBot/Modules/Administration/Services/SelfAssignedRolesService.cs

@@ -70,7 +70,7 @@ public class SelfAssignedRolesService : INService
     public async Task<(AssignResult Result, bool AutoDelete, object extra)> Assign(IGuildUser guildUser, IRole role)
     {
         LevelStats userLevelData;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var stats = uow.GetOrCreateUserXpStats(guildUser.Guild.Id, guildUser.Id);
             userLevelData = new(stats.Xp + stats.AwardedXp);
@@ -132,7 +132,7 @@ public class SelfAssignedRolesService : INService
     public async Task<bool> SetNameAsync(ulong guildId, int group, string name)
     {
         var set = false;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var gc = uow.GuildConfigsForId(guildId, y => y.Include(x => x.SelfAssignableRoleGroupNames));
             var toUpdate = gc.SelfAssignableRoleGroupNames.FirstOrDefault(x => x.Number == group);

src/NadekoBot/Modules/Administration/Services/SelfService.cs

@@ -101,7 +101,7 @@ public sealed class SelfService : ILateExecutor, IReadyExecutor, INService
 
     public async Task OnReadyAsync()
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
 
         _autoCommands = uow
             .AutoCommands
@@ -344,7 +344,7 @@ public sealed class SelfService : ILateExecutor, IReadyExecutor, INService
 
             // i can't just do ReadAsStreamAsync because dicord.net's image poops itself
             var imgData = await sr.Content.ReadAsByteArrayAsync().ConfigureAwait(false);
-            using (var imgStream = imgData.ToStream())
+            await using (var imgStream = imgData.ToStream())
             {
                 await _client.CurrentUser.ModifyAsync(u => u.Avatar = new Image(imgStream)).ConfigureAwait(false);
             }

src/NadekoBot/Modules/Administration/Services/UserPunishService.cs

@@ -60,7 +60,7 @@ public class UserPunishService : INService
 
         var warnings = 1;
         List<WarningPunishment> ps;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             ps = uow.GuildConfigsForId(guildId, set => set.Include(x => x.WarnPunishments))
                 .WarnPunishments;
@@ -206,7 +206,7 @@ public class UserPunishService : INService
 
     public async Task CheckAllWarnExpiresAsync()
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var cleared = await uow.Database.ExecuteSqlRawAsync($@"UPDATE Warnings
 SET Forgiven = 1,
@@ -228,7 +228,7 @@ WHERE GuildId in (SELECT GuildId FROM GuildConfigs WHERE WarnExpireHours > 0 AND
 
     public async Task CheckWarnExpiresAsync(ulong guildId)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GuildConfigsForId(guildId, inc => inc);
 
@@ -265,7 +265,7 @@ WHERE GuildId={guildId}
         
     public async Task WarnExpireAsync(ulong guildId, int days, bool delete)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GuildConfigsForId(guildId, inc => inc);
 
@@ -300,7 +300,7 @@ WHERE GuildId={guildId}
     public async Task<bool> WarnClearAsync(ulong guildId, ulong userId, int index, string moderator)
     {
         var toReturn = true;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             if (index == 0)
             {

src/NadekoBot/Modules/Administration/Services/VcRoleService.cs

@@ -122,7 +122,7 @@ public class VcRoleService : INService
 
         if (missingRoles.Any())
         {
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 Log.Warning($"Removing {missingRoles.Count} missing roles from {nameof(VcRoleService)}");
                 uow.RemoveRange(missingRoles);

src/NadekoBot/Modules/CustomReactions/Services/CustomReactionsService.cs

@@ -85,7 +85,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
 
     private async Task ReloadInternal(IReadOnlyList<ulong> allGuildIds)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var guildItems = await uow.CustomReactions
             .AsNoTracking()
             .Where(x => allGuildIds.Contains(x.GuildId.Value))
@@ -190,7 +190,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
 
     private async Task OnJoinedGuild(GuildConfig gc)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var crs = await uow
             .CustomReactions
             .AsNoTracking()
@@ -217,7 +217,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
         if (cr.Response.Contains("%target%", StringComparison.OrdinalIgnoreCase))
             cr.AllowTarget = true;
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             uow.CustomReactions.Add(cr);
             await uow.SaveChangesAsync();
@@ -230,7 +230,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
 
     public async Task<CustomReaction> EditAsync(ulong? guildId, int id, string message)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var cr = uow.CustomReactions.GetById(id);
 
         if (cr is null || cr.GuildId != guildId)
@@ -258,7 +258,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
 
     public async Task<CustomReaction> DeleteAsync(ulong? guildId, int id)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var toDelete = uow.CustomReactions.GetById(id);
             
         if (toDelete is null)
@@ -477,7 +477,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
     public async Task ResetCrReactions(ulong? maybeGuildId, int id)
     {
         CustomReaction cr;
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         cr = uow.CustomReactions.GetById(id);
         if (cr is null)
             return;
@@ -594,7 +594,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
     public async Task SetCrReactions(ulong? guildId, int id, IEnumerable<string> emojis)
     {
         CustomReaction cr;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             cr = uow.CustomReactions.GetById(id);
             if (cr is null)
@@ -612,7 +612,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
     {
         var newVal = false;
         CustomReaction cr;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             cr = uow.CustomReactions.GetById(id);
             if (cr is null)
@@ -711,7 +711,7 @@ public sealed class CustomReactionsService : IEarlyBehavior, IReadyExecutor
             return false;
         }
 
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         foreach (var entry in data)
         {
             var trigger = entry.Key;

src/NadekoBot/Modules/Gambling/DiceRollCommands.cs

@@ -40,7 +40,7 @@ public partial class Gambling
             using (var img1 = GetDice(num1))
             using (var img2 = GetDice(num2))
             using (var img = new[] { img1, img2 }.Merge(out var format))
-            using (var ms = img.ToStream(format))
+            await using (var ms = img.ToStream(format))
             {
                 await ctx.Channel.SendFileAsync(ms,
                     $"dice.{format.FileExtensions.First()}",
@@ -116,7 +116,7 @@ public partial class Gambling
             }
 
             using (var bitmap = dice.Merge(out var format))
-            using (var ms = bitmap.ToStream(format))
+            await using (var ms = bitmap.ToStream(format))
             {
                 foreach (var d in dice)
                 {

src/NadekoBot/Modules/Gambling/DrawCommands.cs

@@ -80,7 +80,7 @@ public partial class Gambling
                 num = 10;
 
             var (ImageStream, ToSend) = await InternalDraw(num, ctx.Guild.Id).ConfigureAwait(false);
-            using (ImageStream)
+            await using (ImageStream)
             {
                 await ctx.Channel.SendFileAsync(ImageStream, num + " cards.jpg", ToSend).ConfigureAwait(false);
             }
@@ -95,7 +95,7 @@ public partial class Gambling
                 num = 10;
 
             var (ImageStream, ToSend) = await InternalDraw(num).ConfigureAwait(false);
-            using (ImageStream)
+            await using (ImageStream)
             {
                 await ctx.Channel.SendFileAsync(ImageStream, num + " cards.jpg", ToSend).ConfigureAwait(false);
             }

src/NadekoBot/Modules/Gambling/FlipCoinCommands.cs

@@ -55,7 +55,7 @@ public partial class Gambling
                 }
             }
             using (var img = imgs.Merge(out var format))
-            using (var stream = img.ToStream(format))
+            await using (var stream = img.ToStream(format))
             {
                 foreach (var i in imgs)
                 {

src/NadekoBot/Modules/Gambling/Gambling.cs

@@ -187,7 +187,7 @@ public partial class Gambling : GamblingModule<GamblingService>
             return;
 
         var trs = new List<CurrencyTransaction>();
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             trs = uow.CurrencyTransactions.GetPageFor(userId, page);
         }
@@ -528,7 +528,7 @@ public partial class Gambling : GamblingModule<GamblingService>
         {
             var now = DateTime.UtcNow;
 
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 cleanRichest = uow.DiscordUser.GetTopRichest(_client.CurrentUser.Id, 10_000);
             }
@@ -542,7 +542,7 @@ public partial class Gambling : GamblingModule<GamblingService>
         }
         else
         {
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 cleanRichest = uow.DiscordUser.GetTopRichest(_client.CurrentUser.Id, 9, page).ToList();
             }

src/NadekoBot/Modules/Gambling/Services/Impl/ShopService.cs

@@ -33,7 +33,7 @@ public class ShopService : IShopService, INService
         if (newPrice <= 0)
             throw new ArgumentOutOfRangeException(nameof(newPrice));
 
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var entries = GetEntriesInternal(uow, guildId);
 
         if (index >= entries.Count)
@@ -51,7 +51,7 @@ public class ShopService : IShopService, INService
         if (string.IsNullOrWhiteSpace(newName))
             throw new ArgumentNullException(nameof(newName));
 
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var entries = GetEntriesInternal(uow, guildId);
 
         if (index >= entries.Count)
@@ -69,7 +69,7 @@ public class ShopService : IShopService, INService
         if (index2 < 0)
             throw new ArgumentOutOfRangeException(nameof(index2));
 
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var entries = GetEntriesInternal(uow, guildId);
 
         if (index1 >= entries.Count || index2 >= entries.Count || index1 == index2)
@@ -89,7 +89,7 @@ public class ShopService : IShopService, INService
         if (toIndex < 0)
             throw new ArgumentOutOfRangeException(nameof(toIndex));
 
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var entries = GetEntriesInternal(uow, guildId);
 
         if (fromIndex >= entries.Count || toIndex >= entries.Count || fromIndex == toIndex)

src/NadekoBot/Modules/Gambling/Services/PlantPickService.cs

@@ -219,7 +219,7 @@ public class PlantPickService : INService
                         var pw = config.Generation.HasPassword ? GenerateCurrencyPassword().ToUpperInvariant() : null;
 
                         IUserMessage sent;
-                        using (var stream = GetRandomCurrencyImage(pw, out var ext))
+                        await using (var stream = GetRandomCurrencyImage(pw, out var ext))
                         {
                             sent = await channel.SendFileAsync(stream, $"currency_image.{ext}", toSend).ConfigureAwait(false);
                         }
@@ -259,7 +259,7 @@ public class PlantPickService : INService
         {
             long amount;
             ulong[] ids;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 // this method will sum all plants with that password,
                 // remove them, and get messageids of the removed plants
@@ -318,7 +318,7 @@ public class PlantPickService : INService
                 msgToSend += " " + GetText(gid, strs.pick_sn(prefix));
 
             //get the image
-            using (var stream = GetRandomCurrencyImage(pass, out var ext))
+            await using (var stream = GetRandomCurrencyImage(pass, out var ext))
             {
                 // send it
                 var msg = await ch.SendFileAsync(stream, $"img.{ext}", msgToSend).ConfigureAwait(false);
@@ -362,7 +362,7 @@ public class PlantPickService : INService
 
     private async Task AddPlantToDatabase(ulong gid, ulong cid, ulong uid, ulong mid, long amount, string pass)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             uow.PlantedCurrency.Add(new()
             {

src/NadekoBot/Modules/Gambling/Services/WaifuService.cs

@@ -39,8 +39,8 @@ public class WaifuService : INService
             return false;
 
         var settings = _gss.Data;
-            
+
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var waifu = uow.WaifuInfo.ByWaifuUserId(waifuId);
             var ownerUser = uow.GetOrCreateUser(owner);
@@ -116,7 +116,7 @@ public class WaifuService : INService
 
     public async Task<bool> TryReset(IUser user)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var price = GetResetPrice(user);
             if (!await _cs.RemoveAsync(user.Id, "Waifu Reset", price, gamble: true))
@@ -161,7 +161,7 @@ public class WaifuService : INService
         WaifuClaimResult result;
         WaifuInfo w;
         bool isAffinity;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             w = uow.WaifuInfo.ByWaifuUserId(target.Id);
             isAffinity = (w?.Affinity?.UserId == user.Id);
@@ -251,7 +251,7 @@ public class WaifuService : INService
         DiscordUser oldAff = null;
         var success = false;
         TimeSpan? remaining = null;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var w = uow.WaifuInfo.ByWaifuUserId(user.Id);
             var newAff = target is null ? null : uow.GetOrCreateUser(target);
@@ -323,7 +323,7 @@ public class WaifuService : INService
         TimeSpan? remaining = null;
         long amount = 0;
         WaifuInfo w = null;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             w = uow.WaifuInfo.ByWaifuUserId(targetId);
             var now = DateTime.UtcNow;
@@ -375,7 +375,7 @@ public class WaifuService : INService
             return false;
         }
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var w = uow.WaifuInfo.ByWaifuUserId(giftedWaifu.Id, 
                 set => set.Include(x => x.Items)

src/NadekoBot/Modules/Gambling/ShopCommands.cs

@@ -89,7 +89,7 @@ public partial class Gambling
             if (index < 0)
                 return;
             ShopEntry entry;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(ctx.Guild.Id, set => set
                     .Include(x => x.ShopEntries)
@@ -159,7 +159,7 @@ public partial class Gambling
 
                 if (await _cs.RemoveAsync(ctx.User.Id, $"Shop purchase - {entry.Type}", entry.Price).ConfigureAwait(false))
                 {
-                    using (var uow = _db.GetDbContext())
+                    await using (var uow = _db.GetDbContext())
                     {
                         var x = uow.Set<ShopEntryItem>().Remove(item);
                         uow.SaveChanges();
@@ -183,7 +183,7 @@ public partial class Gambling
                         await _cs.AddAsync(ctx.User.Id,
                             $"Shop error refund - {entry.Name}",
                             entry.Price).ConfigureAwait(false);
-                        using (var uow = _db.GetDbContext())
+                        await using (var uow = _db.GetDbContext())
                         {
                             var entries = new IndexedCollection<ShopEntry>(uow.GuildConfigsForId(ctx.Guild.Id,
                                 set => set.Include(x => x.ShopEntries)
@@ -232,7 +232,7 @@ public partial class Gambling
                 RoleId = role.Id,
                 RoleName = role.Name
             };
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var entries = new IndexedCollection<ShopEntry>(uow.GuildConfigsForId(ctx.Guild.Id,
                     set => set.Include(x => x.ShopEntries)
@@ -263,7 +263,7 @@ public partial class Gambling
                 AuthorId = ctx.User.Id,
                 Items = new(),
             };
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var entries = new IndexedCollection<ShopEntry>(uow.GuildConfigsForId(ctx.Guild.Id,
                     set => set.Include(x => x.ShopEntries)
@@ -294,7 +294,7 @@ public partial class Gambling
             ShopEntry entry;
             var rightType = false;
             var added = false;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var entries = new IndexedCollection<ShopEntry>(uow.GuildConfigsForId(ctx.Guild.Id,
                     set => set.Include(x => x.ShopEntries)
@@ -327,7 +327,7 @@ public partial class Gambling
             if (index < 0)
                 return;
             ShopEntry removed;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(ctx.Guild.Id, set => set
                     .Include(x => x.ShopEntries)

src/NadekoBot/Modules/Gambling/SlotCommands.cs

@@ -172,7 +172,7 @@ public partial class Gambling
                 Interlocked.Add(ref _totalPaidOut, result.Won);
 
                 long ownedAmount;
-                using (var uow = _db.GetDbContext())
+                await using (var uow = _db.GetDbContext())
                 {
                     ownedAmount = uow.Set<DiscordUser>()
                         .FirstOrDefault(x => x.UserId == ctx.User.Id)
@@ -243,7 +243,7 @@ public partial class Gambling
                             msg = GetText(strs.slot_jackpot(30));
                     }
 
-                    using (var imgStream = bgImage.ToStream())
+                    await using (var imgStream = bgImage.ToStream())
                     {
                         await ctx.Channel.SendFileAsync(imgStream,
                             filename: "result.png",

src/NadekoBot/Modules/Games/CleverBotCommands.cs

@@ -32,7 +32,7 @@ public partial class Games
 
             if (_service.ChatterBotGuilds.TryRemove(channel.Guild.Id, out _))
             {
-                using (var uow = _db.GetDbContext())
+                await using (var uow = _db.GetDbContext())
                 {
                     uow.GuildConfigs.SetCleverbotEnabled(ctx.Guild.Id, false);
                     await uow.SaveChangesAsync();
@@ -43,7 +43,7 @@ public partial class Games
 
             _service.ChatterBotGuilds.TryAdd(channel.Guild.Id, new(() => _service.CreateSession(), true));
 
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 uow.GuildConfigs.SetCleverbotEnabled(ctx.Guild.Id, true);
                 await uow.SaveChangesAsync();

src/NadekoBot/Modules/Games/Common/PollRunner.cs

@@ -54,7 +54,8 @@ public class PollRunner
             var _ = OnVoted?.Invoke(msg, usr);
         }
         finally { _locker.Release(); }
-        using (var uow = _db.GetDbContext())
+
+        await using (var uow = _db.GetDbContext())
         {
             var trackedPoll = uow.Poll.FirstOrDefault(x => x.Id == Poll.Id);
             trackedPoll.Votes.Add(voteObj);

src/NadekoBot/Modules/Games/Games.cs

@@ -66,7 +66,7 @@ public partial class Games : NadekoModule<GamesService>
             return;
         }
 
-        using (var imgStream = new MemoryStream())
+        await using (var imgStream = new MemoryStream())
         {
             lock (gr)
             {

src/NadekoBot/Modules/Help/Help.cs

@@ -379,7 +379,7 @@ public class Help : NadekoModule<HelpService>
                 });
             }
 
-            using var ms = new MemoryStream();
+            await using var ms = new MemoryStream();
             await oldVersionObject.ResponseStream.CopyToAsync(ms);
             var versionListString = Encoding.UTF8.GetString(ms.ToArray());
                 
@@ -415,7 +415,7 @@ public class Help : NadekoModule<HelpService>
         }
 
         // also send the file, but indented one, to chat
-        using var rDataStream = new MemoryStream(Encoding.ASCII.GetBytes(readableData));
+        await using var rDataStream = new MemoryStream(Encoding.ASCII.GetBytes(readableData));
         await ctx.Channel.SendFileAsync(rDataStream, "cmds.json", GetText(strs.commandlist_regen)).ConfigureAwait(false);
     }
 

src/NadekoBot/Modules/Music/PlaylistCommands.cs

@@ -49,7 +49,7 @@ public sealed partial class Music
 
             List<MusicPlaylist> playlists;
 
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 playlists = uow.MusicPlaylists.GetPlaylistsOnPage(num);
             }
@@ -71,7 +71,7 @@ public sealed partial class Music
             var success = false;
             try
             {
-                using (var uow = _db.GetDbContext())
+                await using (var uow = _db.GetDbContext())
                 {
                     var pl = uow.MusicPlaylists.FirstOrDefault(x => x.Id == id);
 
@@ -105,7 +105,7 @@ public sealed partial class Music
                 return;
 
             MusicPlaylist mpl;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 mpl = uow.MusicPlaylists.GetWithSongs(id);
             }
@@ -144,7 +144,7 @@ public sealed partial class Music
                 }).ToList();
 
             MusicPlaylist playlist;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 playlist = new()
                 {
@@ -203,7 +203,7 @@ public sealed partial class Music
                 }
                     
                 MusicPlaylist mpl;
-                using (var uow = _db.GetDbContext())
+                await using (var uow = _db.GetDbContext())
                 {
                     mpl = uow.MusicPlaylists.GetWithSongs(id);
                 }

src/NadekoBot/Modules/Music/Services/MusicService.cs

@@ -345,8 +345,8 @@ public sealed class MusicService : IMusicService
     {
         if (_settings.TryGetValue(guildId, out var settings))
             return settings;
-            
+
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var toReturn = _settings[guildId] = await uow.MusicPlayerSettings.ForGuildAsync(guildId);
         await uow.SaveChangesAsync();
 
@@ -358,7 +358,7 @@ public sealed class MusicService : IMusicService
         Action<MusicPlayerSettings, TState> action,
         TState state)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var ms = await uow.MusicPlayerSettings.ForGuildAsync(guildId);
         action(ms, state);
         await uow.SaveChangesAsync();
@@ -438,7 +438,7 @@ public sealed class MusicService : IMusicService
 
     public async Task<QualityPreset> GetMusicQualityAsync(ulong guildId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var settings = await uow.MusicPlayerSettings.ForGuildAsync(guildId);
         return settings.QualityPreset;
     }

src/NadekoBot/Modules/Permissions/CmdCdsCommands.cs

@@ -45,7 +45,7 @@ public partial class Permissions
             }
 
             var name = command.Name.ToLowerInvariant();
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set.Include(gc => gc.CommandCooldowns));
                 var localSet = CommandCooldowns.GetOrAdd(channel.Guild.Id, new ConcurrentHashSet<CommandCooldown>());

src/NadekoBot/Modules/Permissions/FilterCommands.cs

@@ -40,7 +40,7 @@ public partial class Permissions
             var channel = (ITextChannel)ctx.Channel;
 
             bool enabled;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set);
                 enabled = config.FilterInvites = !config.FilterInvites;
@@ -66,7 +66,7 @@ public partial class Permissions
             var channel = (ITextChannel)ctx.Channel;
 
             FilterChannelId removed;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set.Include(gc => gc.FilterInvitesChannelIds));
                 var match = new FilterChannelId()
@@ -105,7 +105,7 @@ public partial class Permissions
             var channel = (ITextChannel)ctx.Channel;
 
             bool enabled;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set);
                 enabled = config.FilterLinks = !config.FilterLinks;
@@ -131,7 +131,7 @@ public partial class Permissions
             var channel = (ITextChannel)ctx.Channel;
 
             FilterLinksChannelId removed;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set.Include(gc => gc.FilterLinksChannelIds));
                 var match = new FilterLinksChannelId()
@@ -170,7 +170,7 @@ public partial class Permissions
             var channel = (ITextChannel)ctx.Channel;
 
             bool enabled;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set);
                 enabled = config.FilterWords = !config.FilterWords;
@@ -196,7 +196,7 @@ public partial class Permissions
             var channel = (ITextChannel)ctx.Channel;
 
             FilterChannelId removed;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set.Include(gc => gc.FilterWordsChannelIds));
 
@@ -240,7 +240,7 @@ public partial class Permissions
                 return;
 
             FilteredWord removed;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GuildConfigsForId(channel.Guild.Id, set => set.Include(gc => gc.FilteredWords));
 

src/NadekoBot/Modules/Permissions/Permissions.cs

@@ -26,7 +26,7 @@ public partial class Permissions : NadekoModule<PermissionService>
     [RequireContext(ContextType.Guild)]
     public async Task Verbose(PermissionAction action = null)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GcWithPermissionsv2For(ctx.Guild.Id);
             if (action is null) action = new(!config.VerbosePermissions); // New behaviour, can toggle.
@@ -68,7 +68,7 @@ public partial class Permissions : NadekoModule<PermissionService>
             return;
         }
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GcWithPermissionsv2For(ctx.Guild.Id);
             config.PermissionRole = role.Id.ToString();
@@ -87,7 +87,7 @@ public partial class Permissions : NadekoModule<PermissionService>
     [Priority(1)]
     public async Task PermRole(Reset _)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GcWithPermissionsv2For(ctx.Guild.Id);
             config.PermissionRole = null;
@@ -143,7 +143,7 @@ public partial class Permissions : NadekoModule<PermissionService>
         try
         {
             Permissionv2 p;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var config = uow.GcWithPermissionsv2For(ctx.Guild.Id);
                 var permsCol = new PermissionsCollection<Permissionv2>(config.Permissions);
@@ -175,7 +175,7 @@ public partial class Permissions : NadekoModule<PermissionService>
             try
             {
                 Permissionv2 fromPerm;
-                using (var uow = _db.GetDbContext())
+                await using (var uow = _db.GetDbContext())
                 {
                     var config = uow.GcWithPermissionsv2For(ctx.Guild.Id);
                     var permsCol = new PermissionsCollection<Permissionv2>(config.Permissions);

src/NadekoBot/Modules/Permissions/Services/PermissionsService.cs

@@ -71,7 +71,7 @@ public class PermissionService : ILateBlocker, INService
 
     public async Task AddPermissions(ulong guildId, params Permissionv2[] perms)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GcWithPermissionsv2For(guildId);
             //var orderedPerms = new PermissionsCollection<Permissionv2>(config.Permissions);
@@ -178,7 +178,7 @@ public class PermissionService : ILateBlocker, INService
 
     public async Task Reset(ulong guildId)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var config = uow.GcWithPermissionsv2For(guildId);
             config.Permissions = Permissionv2.GetDefaultPermlist;

src/NadekoBot/Modules/Searches/Searches.cs

@@ -48,7 +48,7 @@ public partial class Searches : NadekoModule<SearchesService>
         var av = usr.RealAvatarUrl(128);
         if (av is null)
             return;
-        using (var picStream = await _service.GetRipPictureAsync(usr.Nickname ?? usr.Username, av).ConfigureAwait(false))
+        await using (var picStream = await _service.GetRipPictureAsync(usr.Nickname ?? usr.Username, av).ConfigureAwait(false))
         {
             await ctx.Channel.SendFileAsync(
                     picStream,
@@ -626,7 +626,8 @@ public partial class Searches : NadekoModule<SearchesService>
                     new PointF(x, 50)
                 }));
             }
-            using (var ms = img.ToStream())
+
+            await using (var ms = img.ToStream())
             {
                 await ctx.Channel.SendFileAsync(ms, $"colors.png").ConfigureAwait(false);
             }

src/NadekoBot/Modules/Searches/Services/FeedsService.cs

@@ -32,7 +32,6 @@ public class FeedsService : INService
                 .AsQueryable()
                 .Where(x => guildConfigIds.Contains(x.Id))
                 .Include(x => x.FeedSubs)
-                .ThenInclude(x => x.GuildConfig)
                 .ToList()
                 .SelectMany(x => x.FeedSubs)
                 .GroupBy(x => x.Url.ToLower())

src/NadekoBot/Modules/Searches/Services/StreamNotificationService.cs

@@ -339,7 +339,7 @@ public sealed class StreamNotificationService : INService
 
     public async Task<int> ClearAllStreams(ulong guildId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var gc = uow.GuildConfigsForId(guildId, set => set.Include(x => x.FollowedStreams));
         uow.RemoveRange(gc.FollowedStreams);
 
@@ -354,7 +354,7 @@ public sealed class StreamNotificationService : INService
     public async Task<FollowedStream> UnfollowStreamAsync(ulong guildId, int index)
     {
         FollowedStream fs;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var fss = uow.Set<FollowedStream>()
                 .AsQueryable()
@@ -400,7 +400,7 @@ public sealed class StreamNotificationService : INService
             return null;
 
         FollowedStream fs;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var gc = uow.GuildConfigsForId(guildId, set => set.Include(x => x.FollowedStreams));
 

src/NadekoBot/Modules/Searches/StreamNotificationCommands.cs

@@ -84,7 +84,7 @@ public partial class Searches
             }
 
             var streams = new List<FollowedStream>();
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var all = uow
                     .GuildConfigsForId(ctx.Guild.Id, set => set.Include(gc => gc.FollowedStreams))

src/NadekoBot/Modules/Utility/CommandMapCommands.cs

@@ -57,7 +57,7 @@ public partial class Utility
                     return;
                 }
 
-                using (var uow = _db.GetDbContext())
+                await using (var uow = _db.GetDbContext())
                 {
                     var config = uow.GuildConfigsForId(ctx.Guild.Id, set => set.Include(x => x.CommandAliases));
                     var toAdd = new CommandAlias()

src/NadekoBot/Modules/Utility/QuoteCommands.cs

@@ -44,7 +44,7 @@ public partial class Utility
                 return;
 
             IEnumerable<Quote> quotes;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 quotes = uow.Quotes.GetGroup(ctx.Guild.Id, page, order);
             }
@@ -67,7 +67,7 @@ public partial class Utility
             keyword = keyword.ToUpperInvariant();
 
             Quote quote;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 quote = await uow.Quotes.GetRandomQuoteByKeywordAsync(ctx.Guild.Id, keyword);
                 //if (quote != null)
@@ -95,7 +95,7 @@ public partial class Utility
         public async Task QuoteShow(int id)
         {
             Quote quote;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 quote = uow.Quotes.GetById(id);
                 if (quote?.GuildId != ctx.Guild.Id)
@@ -132,7 +132,7 @@ public partial class Utility
             keyword = keyword.ToUpperInvariant();
 
             Quote keywordquote;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 keywordquote = await uow.Quotes.SearchQuoteKeywordTextAsync(ctx.Guild.Id, keyword, text);
             }
@@ -157,7 +157,7 @@ public partial class Utility
                 .WithDefault(Context)
                 .Build();
 
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 quote = uow.Quotes.GetById(id);
             }
@@ -186,7 +186,7 @@ public partial class Utility
             keyword = keyword.ToUpperInvariant();
             
             Quote q;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 uow.Quotes.Add(q = new()
                 {
@@ -209,7 +209,7 @@ public partial class Utility
 
             var success = false;
             string response;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var q = uow.Quotes.GetById(id);
 
@@ -241,7 +241,7 @@ public partial class Utility
 
             keyword = keyword.ToUpperInvariant();
 
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 uow.Quotes.RemoveAllByKeyword(ctx.Guild.Id, keyword.ToUpperInvariant());
 
@@ -289,7 +289,7 @@ public partial class Utility
         public async Task QuotesExport()
         {
             IEnumerable<Quote> quotes;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 quotes = uow.Quotes
                     .GetForGuild(ctx.Guild.Id)

src/NadekoBot/Modules/Utility/RemindCommands.cs

@@ -107,7 +107,7 @@ public partial class Utility
                 .WithTitle(GetText(isServer ? strs.reminder_server_list : strs.reminder_list));
 
             List<Reminder> rems;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 if (isServer)
                 {
@@ -164,7 +164,7 @@ public partial class Utility
                 return;
 
             Reminder rem = null;
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var rems = isServer
                     ? uow.Reminders
@@ -219,7 +219,7 @@ public partial class Utility
                 ServerId = ctx.Guild?.Id ?? 0
             };
 
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 uow.Reminders.Add(rem);
                 await uow.SaveChangesAsync();

src/NadekoBot/Modules/Utility/Services/PatreonRewardsService.cs

@@ -231,7 +231,7 @@ public class PatreonRewardsService : INService
         {
             var eligibleFor = (int)(cents * settings.PatreonCurrencyPerCent);
 
-            using (var uow = _db.GetDbContext())
+            await using (var uow = _db.GetDbContext())
             {
                 var users = uow.Set<RewardedUser>();
                 var usr = await users.FirstOrDefaultAsyncEF(x => x.PatreonUserId == patreonUserId);

src/NadekoBot/Modules/Utility/Services/RemindService.cs

@@ -61,7 +61,7 @@ public class RemindService : INService
 
     private async Task RemoveReminders(List<Reminder> reminders)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             uow.Set<Reminder>()
                 .RemoveRange(reminders);

src/NadekoBot/Modules/Utility/Services/RepeaterService.cs

@@ -138,7 +138,7 @@ where ((guildid >> 22) % {_creds.TotalShards}) == {_client.ShardId};")
 
     public async Task<bool> TriggerExternal(ulong guildId, int index)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
             
         var toTrigger = await uow.Repeaters
             .AsNoTracking()
@@ -290,8 +290,8 @@ where ((guildid >> 22) % {_creds.TotalShards}) == {_client.ShardId};")
     private async Task RemoveRepeaterInternal(Repeater r)
     {
         _noRedundant.TryRemove(r.Id);
-            
+
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         await uow
             .Repeaters
             .DeleteAsync(x => x.Id == r.Id);
@@ -314,7 +314,7 @@ where ((guildid >> 22) % {_creds.TotalShards}) == {_client.ShardId};")
 
     private async Task SetRepeaterLastMessageInternal(int repeaterId, ulong lastMsgId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         await uow.Repeaters
             .AsQueryable()
             .Where(x => x.Id == repeaterId)
@@ -345,7 +345,7 @@ where ((guildid >> 22) % {_creds.TotalShards}) == {_client.ShardId};")
             DateAdded = DateTime.UtcNow
         };
 
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
 
         if (await uow.Repeaters.CountAsyncEF(x => x.GuildId == guildId) < MAX_REPEATERS)
             uow.Repeaters.Add(rep);
@@ -365,8 +365,8 @@ where ((guildid >> 22) % {_creds.TotalShards}) == {_client.ShardId};")
     {
         if (index > MAX_REPEATERS * 2)
             throw new ArgumentOutOfRangeException(nameof(index));
-            
+
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var toRemove = await uow.Repeaters
             .AsNoTracking()
             .Where(x => x.GuildId == guildId)
@@ -398,7 +398,7 @@ where ((guildid >> 22) % {_creds.TotalShards}) == {_client.ShardId};")
 
     public async Task<bool?> ToggleRedundantAsync(ulong guildId, int index)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var toToggle = await uow
             .Repeaters
             .AsQueryable()

src/NadekoBot/Modules/Utility/Services/StreamRoleService.cs

@@ -70,7 +70,7 @@ public class StreamRoleService : INService
         userName.ThrowIfNull(nameof(userName));
 
         var success = false;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var streamRoleSettings = uow.GetStreamRoleSettings(guild.Id);
 
@@ -135,7 +135,7 @@ public class StreamRoleService : INService
     {
         keyword = keyword?.Trim()?.ToLowerInvariant();
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var streamRoleSettings = uow.GetStreamRoleSettings(guild.Id);
 
@@ -181,7 +181,7 @@ public class StreamRoleService : INService
         addRole.ThrowIfNull(nameof(addRole));
 
         StreamRoleSettings setting;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var streamRoleSettings = uow.GetStreamRoleSettings(fromRole.Guild.Id);
 
@@ -208,7 +208,7 @@ public class StreamRoleService : INService
     /// <param name="guildId">Guild's Id</param>
     public async Task StopStreamRole(IGuild guild, bool cleanup = false)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var streamRoleSettings = uow.GetStreamRoleSettings(guild.Id);
             streamRoleSettings.Enabled = false;

src/NadekoBot/Modules/Utility/Utility.cs

@@ -441,7 +441,7 @@ public partial class Utility : NadekoModule
                     return msg;
                 })
             });
-        using (var stream = await JsonConvert.SerializeObject(grouping, Formatting.Indented).ToStream().ConfigureAwait(false))
+        await using (var stream = await JsonConvert.SerializeObject(grouping, Formatting.Indented).ToStream().ConfigureAwait(false))
         {
             await ctx.User.SendFileAsync(stream, title, title, false).ConfigureAwait(false);
         }

src/NadekoBot/Modules/Xp/Services/ClubService.cs

@@ -115,7 +115,7 @@ public class ClubService : INService
             }
         }
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var club = uow.Clubs.GetByOwner(ownerUserId);
 

src/NadekoBot/Modules/Xp/Services/XpService.cs

@@ -168,7 +168,7 @@ public class XpService : INService
                 var group = toAddTo.GroupBy(x => (GuildId: x.Guild.Id, x.User));
                 if (toAddTo.Count == 0) continue;
 
-                using (var uow = _db.GetDbContext())
+                await using (var uow = _db.GetDbContext())
                 {
                     foreach (var item in group)
                     {
@@ -450,7 +450,7 @@ public class XpService : INService
 
     public async Task ChangeNotificationType(ulong userId, ulong guildId, XpNotificationLocation type)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var user = uow.GetOrCreateUserXpStats(guildId, userId);
             user.NotifyOnLevelUp = type;
@@ -477,7 +477,7 @@ public class XpService : INService
 
     public async Task ChangeNotificationType(IUser user, XpNotificationLocation type)
     {
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var du = uow.GetOrCreateUser(user);
             du.NotifyOnLevelUp = type;
@@ -724,7 +724,7 @@ public class XpService : INService
         int totalXp;
         int globalRank;
         int guildRank;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             du = uow.GetOrCreateUser(user);
             totalXp = du.TotalXp;
@@ -1044,7 +1044,7 @@ public class XpService : INService
                                         .Resize(_template.User.Icon.Size.X, _template.User.Icon.Size.Y)
                                         .ApplyRoundedCorners(
                                             Math.Max(_template.User.Icon.Size.X, _template.User.Icon.Size.Y) / 2));
-                                    using (var stream = tempDraw.ToStream())
+                                    await using (var stream = tempDraw.ToStream())
                                     {
                                         data = stream.ToArray();
                                     }
@@ -1157,7 +1157,7 @@ public class XpService : INService
                                 .ApplyRoundedCorners(
                                     Math.Max(_template.Club.Icon.Size.X, _template.Club.Icon.Size.Y) / 2.0f));
                             ;
-                            using (var tds = tempDraw.ToStream())
+                            await using (var tds = tempDraw.ToStream())
                             {
                                 data = tds.ToArray();
                             }
@@ -1207,7 +1207,7 @@ public class XpService : INService
 
     public async Task ResetXpRewards(ulong guildId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var guildConfig = uow.GuildConfigsForId(guildId, 
             set => set
                 .Include(x => x.XpSettings)

src/NadekoBot/Modules/Xp/Xp.cs

@@ -29,7 +29,7 @@ public partial class Xp : NadekoModule<XpService>
         user = user ?? ctx.User;
         await ctx.Channel.TriggerTypingAsync().ConfigureAwait(false);
         var (img, fmt) = await _service.GenerateXpImageAsync((IGuildUser)user).ConfigureAwait(false);
-        using (img)
+        await using (img)
         {
             await ctx.Channel.SendFileAsync(img, $"{ctx.Guild.Id}_{user.Id}_xp.{fmt.FileExtensions.FirstOrDefault()}")
                 .ConfigureAwait(false);

src/NadekoBot/NadekoBot.csproj

@@ -4,6 +4,7 @@
     <TargetFramework>net6.0</TargetFramework>
     <LangVersion>10.0</LangVersion>
     <EnablePreviewFeatures>True</EnablePreviewFeatures>
+    <ImplicitUsings>true</ImplicitUsings>
     <RunWorkingDirectory>$(MSBuildProjectDirectory)</RunWorkingDirectory>
     <OutputType>exe</OutputType>
     <ApplicationIcon>nadeko_icon.ico</ApplicationIcon>

src/NadekoBot/Services/GreetSettingsService.cs

@@ -345,7 +345,7 @@ public class GreetSettingsService : INService
             return false;
         }
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var conf = uow.GuildConfigsForId(guildId, set => set);
             conf.DmGreetMessageText = settings.DmGreetMessageText?.SanitizeMentions();
@@ -376,7 +376,7 @@ public class GreetSettingsService : INService
     public async Task<bool> SetGreet(ulong guildId, ulong channelId, bool? value = null)
     {
         bool enabled;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var conf = uow.GuildConfigsForId(guildId, set => set);
             enabled = conf.SendChannelGreetMessage = value ?? !conf.SendChannelGreetMessage;
@@ -415,7 +415,7 @@ public class GreetSettingsService : INService
     public async Task<bool> SetGreetDm(ulong guildId, bool? value = null)
     {
         bool enabled;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var conf = uow.GuildConfigsForId(guildId, set => set);
             enabled = conf.SendDmGreetMessage = value ?? !conf.SendDmGreetMessage;
@@ -503,7 +503,7 @@ public class GreetSettingsService : INService
     public async Task<bool> SetBye(ulong guildId, ulong channelId, bool? value = null)
     {
         bool enabled;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var conf = uow.GuildConfigsForId(guildId, set => set);
             enabled = conf.SendChannelByeMessage = value ?? !conf.SendChannelByeMessage;
@@ -544,7 +544,7 @@ public class GreetSettingsService : INService
         if (timer < 0 || timer > 600)
             return;
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var conf = uow.GuildConfigsForId(guildId, set => set);
             conf.AutoDeleteByeMessagesTimer = timer;
@@ -561,7 +561,7 @@ public class GreetSettingsService : INService
         if (timer < 0 || timer > 600)
             return;
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             var conf = uow.GuildConfigsForId(id, set => set);
             conf.AutoDeleteGreetMessagesTimer = timer;
@@ -592,8 +592,8 @@ public class GreetSettingsService : INService
     {
         if (timer < 0 || timer > 600)
             throw new ArgumentOutOfRangeException(nameof(timer));
-            
+
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var conf = uow.GuildConfigsForId(guildId, set => set);
         conf.BoostMessageDeleteAfter = timer;
             
@@ -605,7 +605,7 @@ public class GreetSettingsService : INService
 
     public async Task<bool> ToggleBoost(ulong guildId, ulong channelId)
     {
-        using var uow = _db.GetDbContext();
+        await using var uow = _db.GetDbContext();
         var conf = uow.GuildConfigsForId(guildId, set => set);
         conf.SendBoostMessage = !conf.SendBoostMessage;
         conf.BoostMessageChannelId = channelId;

src/NadekoBot/Services/Impl/CurrencyService.cs

@@ -58,7 +58,7 @@ public class CurrencyService : ICurrencyService, INService
             throw new ArgumentException("You can't add negative amounts. Use RemoveAsync method for that.", nameof(amount));
         }
 
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             InternalChange(userId, userName, discrim, avatar, reason, amount, gamble, uow);
             await uow.SaveChangesAsync();
@@ -102,7 +102,7 @@ public class CurrencyService : ICurrencyService, INService
             throw new ArgumentException("Cannot perform bulk operation. Arrays are not of equal length.");
 
         var userIdHashSet = new HashSet<ulong>(idArray.Length);
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             for (var i = 0; i < idArray.Length; i++)
             {
@@ -124,7 +124,7 @@ public class CurrencyService : ICurrencyService, INService
             throw new ArgumentException("Cannot perform bulk operation. Arrays are not of equal length.");
 
         var userIdHashSet = new HashSet<ulong>(idArray.Length);
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             for (var i = 0; i < idArray.Length; i++)
             {
@@ -144,7 +144,7 @@ public class CurrencyService : ICurrencyService, INService
         }
 
         bool result;
-        using (var uow = _db.GetDbContext())
+        await using (var uow = _db.GetDbContext())
         {
             result = InternalChange(userId, userName, userDiscrim, avatar, reason, -amount, gamble, uow);
             await uow.SaveChangesAsync();

src/NadekoBot/Services/Impl/StatsService.cs

@@ -16,7 +16,7 @@ public class StatsService : IStatsService, IReadyExecutor, INService, IDisposabl
     private readonly IBotCredentials _creds;
     private readonly DateTime _started;
 
-    public const string BotVersion = "3.0.11";
+    public const string BotVersion = "4.0.0";
     public string Author => "Kwoth#2452";
     public string Library => "Discord.Net";
     public double MessagesPerSecond => MessageCounter / GetUptime().TotalSeconds;
@@ -42,7 +42,7 @@ public class StatsService : IStatsService, IReadyExecutor, INService, IDisposabl
 
         _started = DateTime.UtcNow;
         _client.MessageReceived += _ => Task.FromResult(Interlocked.Increment(ref _messageCounter));
-        cmdHandler.CommandExecuted += (_, e) => Task.FromResult(Interlocked.Increment(ref _commandsRan));
+        cmdHandler.CommandExecuted += (_, _) => Task.FromResult(Interlocked.Increment(ref _commandsRan));
 
         _client.ChannelCreated += c =>
         {

src/NadekoBot/_Extensions/IUserExtensions.cs

@@ -41,7 +41,7 @@ public static class IUserExtensions
 
     public static async Task<IUserMessage> SendFileAsync(this IUser user, string filePath, string caption = null, string text = null, bool isTTS = false)
     {
-        using (var file = File.Open(filePath, FileMode.Open))
+        await using (var file = File.Open(filePath, FileMode.Open))
         {
             return await (await user.GetOrCreateDMChannelAsync().ConfigureAwait(false)).SendFileAsync(file, caption ?? "x", text, isTTS).ConfigureAwait(false);
         }