Handle flea item prices as doubles

Libraries/Core/Generators/RagfairOfferGenerator.cs

@@ -126,7 +126,7 @@ public class RagfairOfferGenerator(
             itemHelper.AddCartridgesToAmmoBox(itemsClone, itemHelper.GetItem(rootItem.Template).Value);
         }
 
-        var roubleListingPrice = Math.Round((double) ConvertOfferRequirementsIntoRoubles(offerRequirements));
+        var roubleListingPrice = Math.Round(ConvertOfferRequirementsIntoRoubles(offerRequirements));
         var singleItemListingPrice = isPackOffer ? roubleListingPrice / itemStackCount : roubleListingPrice;
 
         var offer = new RagfairOffer
@@ -209,14 +209,14 @@ public class RagfairOfferGenerator(
      * @param offerRequirements barter requirements for offer
      * @returns rouble cost of offer
      */
-    protected int ConvertOfferRequirementsIntoRoubles(List<OfferRequirement> offerRequirements)
+    protected double ConvertOfferRequirementsIntoRoubles(IEnumerable<OfferRequirement> offerRequirements)
     {
-        var roublePrice = 0;
+        var roublePrice = 0d;
         foreach (var requirement in offerRequirements)
         {
-            roublePrice += (int) (paymentHelper.IsMoneyTpl(requirement.Template)
-                ? Math.Round((double) CalculateRoublePrice((int) requirement.Count, requirement.Template))
-                : ragfairPriceService.GetFleaPriceForItem(requirement.Template) * requirement.Count); // get flea price for barter offer items
+            roublePrice += (paymentHelper.IsMoneyTpl(requirement.Template)
+                ? Math.Round(CalculateRoublePrice(requirement.Count.Value, requirement.Template))
+                : ragfairPriceService.GetFleaPriceForItem(requirement.Template) * requirement.Count.Value); // Get flea price for barter offer items
         }
 
         return roublePrice;
@@ -244,7 +244,7 @@ public class RagfairOfferGenerator(
      * @param currencyType Type of currency (euro/dollar/rouble)
      * @returns count of roubles
      */
-    protected int CalculateRoublePrice(int currencyCount, string currencyType)
+    protected double CalculateRoublePrice(double currencyCount, string currencyType)
     {
         if (currencyType == Money.ROUBLES)
         {

Libraries/Core/Helpers/HandbookHelper.cs

@@ -166,11 +166,11 @@ public class HandbookHelper(
     /// <param name="nonRoubleCurrencyCount">Currency count to convert</param>
     /// <param name="currencyTypeFrom">What current currency is</param>
     /// <returns>Count in roubles</returns>
-    public int InRUB(double nonRoubleCurrencyCount, string currencyTypeFrom)
+    public double InRUB(double nonRoubleCurrencyCount, string currencyTypeFrom)
     {
-        return (int) (currencyTypeFrom == Money.ROUBLES
+        return currencyTypeFrom == Money.ROUBLES
             ? nonRoubleCurrencyCount
-            : Math.Round(nonRoubleCurrencyCount * GetTemplatePrice(currencyTypeFrom)));
+            : Math.Round(nonRoubleCurrencyCount * GetTemplatePrice(currencyTypeFrom));
     }
 
     /// <summary>
@@ -179,7 +179,7 @@ public class HandbookHelper(
     /// <param name="roubleCurrencyCount">roubles to convert</param>
     /// <param name="currencyTypeTo">Currency to convert roubles into</param>
     /// <returns>currency count in desired type</returns>
-    public int FromRUB(double roubleCurrencyCount, string currencyTypeTo)
+    public double FromRUB(double roubleCurrencyCount, string currencyTypeTo)
     {
         if (currencyTypeTo == Money.ROUBLES)
         {
@@ -188,7 +188,9 @@ public class HandbookHelper(
 
         // Get price of currency from handbook
         var price = GetTemplatePrice(currencyTypeTo);
-        return (int) (price > 0 ? Math.Max(1, Math.Round(roubleCurrencyCount / price)) : 0);
+        return price > 0
+            ? Math.Max(1, Math.Round(roubleCurrencyCount / price))
+            : 0;
     }
 
     public HandbookCategory GetCategoryById(string handbookId)

Libraries/Core/Models/Eft/Common/Tables/Trader.cs

@@ -479,6 +479,7 @@ public record TraderAssort
 
 public record BarterScheme
 {
+    // Confirmed in client
     [JsonPropertyName("count")]
     public double? Count
     {

Libraries/Core/Services/FenceService.cs

@@ -998,7 +998,7 @@ public class FenceService(
 
             // Multiply item cost by desired multiplier
             var basePrice = barterSchemes[itemRoot.Id][0][0].Count;
-            barterSchemes[itemRoot.Id][0][0].Count = Math.Round((double) (basePrice * multipler));
+            barterSchemes[itemRoot.Id][0][0].Count = Math.Round(basePrice.Value * multiplier.Value);
 
             return;
         }

Libraries/Core/Services/RagfairPriceService.cs

@@ -300,15 +300,14 @@ public class RagfairPriceService(
         price = RandomiseOfferPrice(price, range);
 
         // Convert to different currency if required.
-        var roublesId = Money.ROUBLES;
-        if (desiredCurrency != roublesId)
+        if (desiredCurrency != Money.ROUBLES)
         {
             price = _handbookHelper.FromRUB(price, desiredCurrency);
         }
 
-        if (price < 1)
+        if (price <= 0)
         {
-            return 1;
+            return 0.1d;
         }
 
         return price;