- Added currency.transactionsLifetime which controls auto-deletion of currency transactions from the database

- Updated changelog

CHANGELOG.md

@@ -16,6 +16,7 @@ Experimental changelog. Mostly based on [keepachangelog](https://keepachangelog.
     - waifu.decay.percent - How much % to subtract from unclaimed waifu
     - waifu.decay.hourInterval - How often to decay the price 
     - waifu.decay.minPrice - Unclaimed waifus with price lower than the one specified here will not be affected by the decay
+- Added `currency.transactionsLifetime` to `data/gambling.yml` Any transaction older than the number of days specified will be automatically deleted
 
 ### Fixed
 - Fixed an extra whitespace in usage part of command help if the command has no arguments  

src/NadekoBot/Modules/Gambling/Gambling.cs

@@ -206,7 +206,6 @@ public partial class Gambling : GamblingModule<GamblingService>
     public partial Task CurrencyTransactions(IUser usr, int page)
         => InternalCurrencyTransactions(usr.Id, page);
 
-    // todo curtrs max lifetime
     private async Task InternalCurrencyTransactions(ulong userId, int page)
     {
         if (--page < 0)

src/NadekoBot/Modules/Gambling/GamblingConfig.cs

@@ -77,6 +77,10 @@ public class CurrencyConfig
 
     [Comment(@"What is the name of the currency")]
     public string Name { get; set; } = "Nadeko Flower";
+
+    [Comment(@"For how long will the transactions be kept in the database (curtrs)
+Set 0 to disable cleanup (keep transactions forever)")]
+    public int TransactionsLifetime { get; set; } = 0;
 }
 
 [Cloneable]

src/NadekoBot/Modules/Gambling/GamblingService.cs

@@ -1,4 +1,5 @@
 #nullable disable
+using LinqToDB;
 using Microsoft.EntityFrameworkCore;
 using NadekoBot.Common.ModuleBehaviors;
 using NadekoBot.Db;
@@ -37,13 +38,48 @@ public class GamblingService : INService, IReadyExecutor
         _gss = gss;
     }
 
-    public async Task OnReadyAsync()
+    public Task OnReadyAsync()
+        => Task.WhenAll(CurrencyDecayLoopAsync(), TransactionClearLoopAsync());
+
+    private async Task TransactionClearLoopAsync()
+    {
+        if (_bot.Client.ShardId != 0)
+            return;
+
+        using var timer = new PeriodicTimer(TimeSpan.FromHours(1));
+        while (await timer.WaitForNextTickAsync())
+        {
+            try
+            {
+                var lifetime = _gss.Data.Currency.TransactionsLifetime;
+                if (lifetime <= 0)
+                    continue;
+
+                var now = DateTime.UtcNow;
+                var days = TimeSpan.FromDays(lifetime);
+                await using var uow = _db.GetDbContext();
+                await uow.CurrencyTransactions
+                         .DeleteAsync(ct => ct.DateAdded == null || now - ct.DateAdded < days);
+                await uow.SaveChangesAsync();
+            }
+            catch (Exception ex)
+            {
+                Log.Warning(ex,
+                    "An unexpected error occurred in transactions cleanup loop: {ErrorMessage}",
+                    ex.Message);
+            }
+        }
+    }
+    
+    private async Task CurrencyDecayLoopAsync()
     {
         if (_bot.Client.ShardId != 0)
             return;
         
         using var timer = new PeriodicTimer(TimeSpan.FromMinutes(5));
         while (await timer.WaitForNextTickAsync())
+        {
+            try
             {
                 var config = _gss.Data;
                 var maxDecay = config.Decay.MaxDecay;
@@ -81,6 +117,13 @@ WHERE CurrencyAmount > {config.Decay.MinThreshold} AND UserId!={_client.CurrentU
                 _cache.SetLastCurrencyDecay();
                 await uow.SaveChangesAsync();
             }
+            catch (Exception ex)
+            {
+                Log.Warning(ex,
+                    "An unexpected error occurred in currency decay loop: {ErrorMessage}",
+                    ex.Message);
+            }
+        }
     }
     
     public async Task<SlotResponse> SlotAsync(ulong userId, long amount)

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

@@ -10,7 +10,6 @@ using NadekoBot.Services.Database.Models;
 
 namespace NadekoBot.Modules.Gambling.Services;
 
-// todo waifu price int
 public class WaifuService : INService, IReadyExecutor
 {
     private readonly DbService _db;

src/NadekoBot/data/gambling.yml

@@ -6,6 +6,9 @@ currency:
   sign: "🌸"
   # What is the name of the currency
   name: Nadeko Flower
+  # For how long will the transactions be kept in the database (curtrs)
+  # Set 0 to disable cleanup (keep transactions forever)
+  transactionsLifetime: 0
 # Minimum amount users can bet (>=0)
 minBet: 0
 # Maximum amount users can bet