Implemented RagfairCategoriesService

Libraries/Core/Services/RagfairCategoriesService.cs

@@ -1,13 +1,19 @@
-using SptCommon.Annotations;
+using Core.Helpers;
 using Core.Models.Eft.Ragfair;
+using Core.Models.Enums;
+using Core.Models.Utils;
+using SptCommon.Annotations;
 
 namespace Core.Services;
 
 [Injectable(InjectionType.Singleton)]
-public class RagfairCategoriesService
+public class RagfairCategoriesService(
+    ISptLogger<RagfairCategoriesService> _logger,
+    PaymentHelper _paymentHelper
+)
 {
     /// <summary>
-    /// Get a dictionary of each item the play can see in their flea menu, filtered by what is available for them to buy
+    ///     Get a dictionary of each item the play can see in their flea menu, filtered by what is available for them to buy
     /// </summary>
     /// <param name="offers">All offers in flea</param>
     /// <param name="searchRequestData">Search criteria requested</param>
@@ -18,6 +24,47 @@ public class RagfairCategoriesService
         SearchRequestData searchRequestData,
         bool fleaUnlocked)
     {
-        throw new NotImplementedException();
+        // Get offers valid for search request, then reduce them down to just the counts
+        var results = new Dictionary<string, int>();
+        return offers
+            .Where(
+                offer =>
+                {
+                    var isTraderOffer = offer.User.MemberType == MemberCategory.TRADER;
+
+                    // Not level 15 and offer is from player, skip
+                    if (!fleaUnlocked || !isTraderOffer)
+                    {
+                        return false;
+                    }
+
+                    // Skip items not for currency when `removeBartering` is enabled
+                    if (
+                        searchRequestData.RemoveBartering.GetValueOrDefault(false) &&
+                        (offer.Requirements.Count > 1 ||
+                         !_paymentHelper.IsMoneyTpl(offer.Requirements.FirstOrDefault().Template))
+                    )
+                    {
+                        return false;
+                    }
+
+                    // Remove when filter set to players only + offer is from trader
+                    if (searchRequestData.OfferOwnerType == OfferOwnerType.PLAYEROWNERTYPE && isTraderOffer)
+                    {
+                        return false;
+                    }
+
+                    // Remove when filter set to traders only + offer is not from trader
+                    if (searchRequestData.OfferOwnerType == OfferOwnerType.TRADEROWNERTYPE && !isTraderOffer)
+                    {
+                        return false;
+                    }
+
+                    // Passed checks, it's a valid offer to process
+                    return true;
+                }
+            )
+            .GroupBy(x => x.Items.FirstOrDefault().Template)
+            .ToDictionary(group => group.Key, group => group.Count());
     }
 }