Added offerListingTaxMultiplier to ragfair config and wired up. Defaults to off

Libraries/SPTarkov.Server.Assets/SPT_Data/configs/ragfair.json

@@ -462,5 +462,6 @@
     "5ac3b934156ae10c4430e83c": true,
     "5c0647fdd443bc2504c2d371": true,
     "6617beeaa9cfa777ca915b7c": true
-  }
+  },
+  "offerListingTaxMultiplier": -1
 }

Libraries/SPTarkov.Server.Core/Models/Spt/Config/RagfairConfig.cs

@@ -26,17 +26,23 @@ public record RagfairConfig : BaseConfig
     [JsonPropertyName("sell")]
     public required Sell Sell { get; set; }
 
+    [JsonPropertyName("dynamic")]
+    public required Dynamic Dynamic { get; set; }
+
+    [JsonPropertyName("tieredFlea")]
+    public required TieredFlea TieredFlea { get; set; }
+
     /// <summary>
     ///     Trader ids + should their assorts be listed on flea
     /// </summary>
     [JsonPropertyName("traders")]
     public required Dictionary<MongoId, bool> Traders { get; set; }
 
-    [JsonPropertyName("dynamic")]
-    public required Dynamic Dynamic { get; set; }
-
-    [JsonPropertyName("tieredFlea")]
-    public required TieredFlea TieredFlea { get; set; }
+    /// <summary>
+    /// Flea tax multi, default is off (-1)
+    /// </summary>
+    [JsonPropertyName("offerListingTaxMultiplier")]
+    public int OfferListingTaxMultiplier { get; set; }
 }
 
 public record Sell

Libraries/SPTarkov.Server.Core/Services/RagfairTaxService.cs

@@ -6,7 +6,9 @@ using SPTarkov.Server.Core.Models.Eft.Common;
 using SPTarkov.Server.Core.Models.Eft.Common.Tables;
 using SPTarkov.Server.Core.Models.Eft.Ragfair;
 using SPTarkov.Server.Core.Models.Enums;
+using SPTarkov.Server.Core.Models.Spt.Config;
 using SPTarkov.Server.Core.Models.Utils;
+using SPTarkov.Server.Core.Servers;
 using SPTarkov.Server.Core.Utils.Cloners;
 using LogLevel = SPTarkov.Server.Core.Models.Spt.Logging.LogLevel;
 
@@ -18,11 +20,14 @@ public class RagfairTaxService(
     DatabaseService databaseService,
     RagfairPriceService ragfairPriceService,
     ItemHelper itemHelper,
+    ConfigServer configServer,
     ICloner cloner
 )
 {
     protected readonly Dictionary<MongoId, StorePlayerOfferTaxAmountRequestData> _playerOfferTaxCache = new();
 
+    protected readonly RagfairConfig RagfairConfig = configServer.GetConfig<RagfairConfig>();
+
     public void StoreClientOfferTaxValue(MongoId sessionId, StorePlayerOfferTaxAmountRequestData offer)
     {
         _playerOfferTaxCache[offer.Id.Value] = offer;
@@ -113,6 +118,11 @@ public class RagfairTaxService(
             logger.Debug($"Tax Calculated to be: {taxValue}");
         }
 
+        if (RagfairConfig.OfferListingTaxMultiplier != -1)
+        {
+            taxValue *= RagfairConfig.OfferListingTaxMultiplier;
+        }
+
         return taxValue;
     }