Added some convenience methods

src/Nadeko.Bot.Common/Currency/ICurrencyService.cs

@@ -1,3 +1,4 @@
+using NadekoBot.Db.Models;
 using NadekoBot.Services.Currency;
 
 namespace NadekoBot.Services;
@@ -37,4 +38,6 @@ public interface ICurrencyService
         IUser user,
         long amount,
         TxData? txData);
+    
+    Task<IReadOnlyList<DiscordUser>> GetTopRichest(ulong ignoreId, int count);
 }

src/Nadeko.Bot.Common/Services/Currency/CurrencyService.cs

@@ -1,6 +1,7 @@
 #nullable disable
 using LinqToDB;
 using LinqToDB.EntityFrameworkCore;
+using NadekoBot.Db;
 using NadekoBot.Db.Models;
 using NadekoBot.Services.Currency;
 
@@ -106,4 +107,10 @@ public sealed class CurrencyService : ICurrencyService, INService
         long amount,
         TxData txData)
         => await RemoveAsync(user.Id, amount, txData);
+
+    public async Task<IReadOnlyList<DiscordUser>> GetTopRichest(ulong ignoreId, int count)
+    {
+        await using var uow = _db.GetDbContext();
+        return await uow.Set<DiscordUser>().GetTopRichest(ignoreId, count);
+    }
 }

src/Nadeko.Bot.Db/Extensions/DiscordUserExtensions.cs

@@ -92,7 +92,7 @@ public static class DiscordUserExtensions
     public static DiscordUser[] GetUsersXpLeaderboardFor(this DbSet<DiscordUser> users, int page)
         => users.AsQueryable().OrderByDescending(x => x.TotalXp).Skip(page * 9).Take(9).AsEnumerable().ToArray();
 
-    public static List<DiscordUser> GetTopRichest(
+    public static Task<List<DiscordUser>> GetTopRichest(
         this DbSet<DiscordUser> users,
         ulong botId,
         int count,
@@ -102,7 +102,7 @@ public static class DiscordUserExtensions
                 .OrderByDescending(c => c.CurrencyAmount)
                 .Skip(page * 9)
                 .Take(count)
-                .ToList();
+                .ToListAsyncLinqToDB();
 
     public static async Task<long> GetUserCurrencyAsync(this DbSet<DiscordUser> users, ulong userId)
         => (await users.FirstOrDefaultAsyncLinqToDB(x => x.UserId == userId))?.CurrencyAmount ?? 0;

src/Nadeko.Bot.Modules.Administration/GreetBye/GreetService.cs

@@ -81,8 +81,13 @@ public class GreetService : INService, IReadyExecutor
             if (channel is null)
                 return;
 
+            await SendBoostMessage(conf, user, channel);
+        };
+
+    private async Task<bool> SendBoostMessage(GreetSettings conf, IGuildUser user, ITextChannel channel)
+    {
         if (string.IsNullOrWhiteSpace(conf.BoostMessage))
-                return;
+            return false;
 
         var toSend = SmartText.CreateFrom(conf.BoostMessage);
 
@@ -93,12 +98,16 @@ public class GreetService : INService, IReadyExecutor
             var toDelete = await channel.SendAsync(newContent);
             if (conf.BoostMessageDeleteAfter > 0)
                 toDelete.DeleteAfter(conf.BoostMessageDeleteAfter);
+
+            return true;
         }
         catch (Exception ex)
         {
             Log.Error(ex, "Error sending boost message");
         }
-        };
+
+        return false;
+    }
 
     private Task OnClientLeftGuild(SocketGuild arg)
     {
@@ -174,6 +183,15 @@ public class GreetService : INService, IReadyExecutor
         return uow.GuildConfigsForId(gid, set => set).BoostMessage;
     }
 
+    public GreetSettings GetGreetSettings(ulong gid)
+    {
+        if (_guildConfigsCache.TryGetValue(gid, out var gs))
+            return gs;
+
+        using var uow = _db.GetDbContext();
+        return GreetSettings.Create(uow.GuildConfigsForId(gid, set => set));
+    }
+
     private Task ByeUsers(GreetSettings conf, ITextChannel channel, IUser user)
         => ByeUsers(conf, channel, new[] { user });
 
@@ -579,11 +597,16 @@ public class GreetService : INService, IReadyExecutor
         await uow.SaveChangesAsync();
     }
 
-    public async Task<bool> ToggleBoost(ulong guildId, ulong channelId)
+    public async Task<bool> ToggleBoost(ulong guildId, ulong channelId, bool? forceState = null)
     {
         await using var uow = _db.GetDbContext();
         var conf = uow.GuildConfigsForId(guildId, set => set);
+
+        if (forceState is not bool fs)
             conf.SendBoostMessage = !conf.SendBoostMessage;
+        else
+            conf.SendBoostMessage = fs;
+
         conf.BoostMessageChannelId = channelId;
         await uow.SaveChangesAsync();
 
@@ -637,5 +660,11 @@ public class GreetService : INService, IReadyExecutor
         return GreetDmUser(conf, user);
     }
 
+    public Task<bool> BoostTest(ITextChannel channel, IGuildUser user)
+    {
+        var conf = GetOrAddSettingsForGuild(user.GuildId);
+        return SendBoostMessage(conf, user, channel);
+    }
+
     #endregion
 }

src/Nadeko.Bot.Modules.Gambling/Gambling/Gambling.cs

@@ -751,7 +751,7 @@ public partial class Gambling : GamblingModule<GamblingService>
         {
             await using (var uow = _db.GetDbContext())
             {
-                cleanRichest = uow.Set<DiscordUser>().GetTopRichest(_client.CurrentUser.Id, 10_000);
+                cleanRichest = await uow.Set<DiscordUser>().GetTopRichest(_client.CurrentUser.Id, 10_000);
             }
 
             await ctx.Channel.TriggerTypingAsync();
@@ -763,19 +763,19 @@ public partial class Gambling : GamblingModule<GamblingService>
         else
         {
             await using var uow = _db.GetDbContext();
-            cleanRichest = uow.Set<DiscordUser>().GetTopRichest(_client.CurrentUser.Id, 9, page).ToList();
+            cleanRichest = await uow.Set<DiscordUser>().GetTopRichest(_client.CurrentUser.Id, 9, page);
         }
 
         await ctx.SendPaginatedConfirmAsync(page,
-            curPage =>
+            async curPage =>
             {
                 var embed = _eb.Create().WithOkColor().WithTitle(CurrencySign + " " + GetText(strs.leaderboard));
 
                 List<DiscordUser> toSend;
                 if (!opts.Clean)
                 {
-                    using var uow = _db.GetDbContext();
-                    toSend = uow.Set<DiscordUser>().GetTopRichest(_client.CurrentUser.Id, 9, curPage);
+                    await using var uow = _db.GetDbContext();
+                    toSend = await uow.Set<DiscordUser>().GetTopRichest(_client.CurrentUser.Id, 9, curPage);
                 }
                 else
                 {