feat: added TaskCache class

TODO: Make a better conversion for USD/EUR to RUB

Plugin/Common/TaskCache.cs

@@ -0,0 +1,72 @@
+using System.Collections.Concurrent;
+
+namespace LootValueEX.Common;
+
+internal class TaskCache
+{
+    private readonly SemaphoreSlim _semaphore;
+    private readonly ConcurrentDictionary<Guid, Task> _taskDict;
+    
+    internal TaskCache(int maxTasks = 10)
+    {
+        _semaphore = new SemaphoreSlim(maxTasks);
+        _taskDict = new ConcurrentDictionary<Guid, Task>();
+    }
+    
+    private bool IsTaskCancelled(Guid taskGuid) =>
+        _taskDict.TryGetValue(taskGuid, out Task task) && task.Status == TaskStatus.Canceled; 
+
+    internal Guid AddTask(Func<CancellationToken, Task> taskFactory)
+    {
+        Guid taskGuid = Guid.NewGuid();
+        CancellationTokenSource cts = new CancellationTokenSource();
+        Task task = taskFactory(cts.Token);
+
+        _taskDict[taskGuid] = task;
+
+        return taskGuid;
+    }
+
+    internal bool RemoveTask(Guid taskGuid)
+    {
+        if (_taskDict.TryGetValue(taskGuid, out Task task))
+        {
+            if (_taskDict.TryRemove(taskGuid, out _))
+            {
+                task.Dispose();
+                _semaphore.Release();
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    internal async Task<Task> RunTaskByGuidAsync(Guid taskGuid)
+    {
+        await _semaphore.WaitAsync();
+        try
+        {
+            if ((_taskDict.TryGetValue(taskGuid, out Task task)))
+            {
+                if (!task.IsCompleted && !task.Status.Equals(TaskStatus.Running))
+                    await task;
+                return task;    
+            }
+            
+            Plugin.Log.LogError($"Task {taskGuid.ToString()} not found.");
+        }
+        catch (OperationCanceledException)
+        {
+            RemoveTask(taskGuid);
+            Plugin.Log.LogDebug($"Task {taskGuid.ToString()} got cancelled.");
+        }
+        return Task.FromResult(false);
+    }
+
+    internal async Task<Task> AddAndRunTaskAsync(Func<CancellationToken, Task> taskFactory)
+    {
+        Guid taskGuid = AddTask(taskFactory);
+        return await RunTaskByGuidAsync(taskGuid);
+    }
+}

Plugin/Extensions/ItemExtensions.cs

@@ -10,7 +10,41 @@ namespace LootValueEX.Extensions
 {
     internal static class ItemExtensions
     {
-        internal static bool IsExamined(this Item? item) => item != null && ClientAppUtils.GetMainApp().GetClientBackEndSession().Profile.Examined(item);
+        /// <summary>
+        /// Checks if an item has been examined by the player.
+        /// </summary>
+        /// <param name="item">The item to check.</param>
+        /// <returns>True if the item has been examined, false otherwise.</returns>
+        internal static bool IsExamined(this Item? item) => item != null &&
+                                                            ClientAppUtils.GetMainApp().GetClientBackEndSession()
+                                                                .Profile.Examined(item);
+
+        internal static bool IsStacked(this Item? item) =>
+            item != null && (item.StackObjectsCount > 1 || item.UnlimitedCount);
+
+        internal static string PrehashTemplate(this Item? item) =>
+            string.Format("{0}|{1}|{2}", item?.TemplateId, item.GetDurability(), item.GetUses());
+
+        internal static Item? UnstackItem(this Item? item)
+        {
+            if (item == null)
+                return null;
+
+            if (!item.IsStacked())
+                return item;
+
+            Item? itemClone = item.CloneItem();
+            itemClone.StackObjectsCount = 1;
+            itemClone.UnlimitedCount = false;
+            return itemClone;
+        }
+
+        /// <summary>
+        /// Retrieves the value of a specific attribute from an item.
+        /// </summary>
+        /// <param name="item">The item to retrieve the attribute from.</param>
+        /// <param name="attributeId">The ID of the attribute to retrieve.</param>
+        /// <returns>The value of the attribute, or -1f if the item is null or the attribute is not found.</returns>
         internal static float GetItemAttribute(this Item? item, EItemAttributeId attributeId)
         {
             if (item == null)
@@ -24,19 +58,34 @@ namespace LootValueEX.Extensions
                 return -1f;
             }
         }
-        internal static string GetCustomHash(this Item? item)
+
+        /// <summary>
+        /// Generates a custom hash for the given item.
+        ///  
+        /// This function takes an optional Item as a parameter and returns its custom hash.
+        /// If the item is null, it returns an empty string. The custom hash is determined by the item's template, durability, and uses.
+        /// </summary>
+        /// <param name="item">The item to retrieve the custom hash for.</param>
+        /// <returns>The custom hash of the item, or an empty string if the item is null.</returns>
+        internal static async Task<string> GetCustomHashAsync(this Item? item)
         {
             if (item == null)
                 return string.Empty;
             StringBuilder prehashString = new StringBuilder();
-            item.GetAllItems().Where(prop => !prop.Equals(item)).ExecuteForEach(prop => prehashString.Append(prop.GetCustomHash()));
-            if (item.Template.Equals(typeof(MagazineTemplate))){
+
+            item.GetAllItems().Where(i => !i.Equals(item)).DoMap(i => prehashString.Append(i.PrehashTemplate()));
+            if (item.Template.Equals(typeof(MagazineTemplate)))
+            {
                 MagazineTemplate magTemplate = (MagazineTemplate)item.Template;
-                magTemplate.Cartridges.ExecuteForEach(prop => prop.Items.ExecuteForEach(ammo => prehashString.Append(ammo.GetCustomHash())));
+                magTemplate.Cartridges.DoMap(s => s.Items.DoMap(i => prehashString.Append(i.PrehashTemplate())));
             }
-            string itemHashTemplate = string.Format("{0}|{1}|{2}|{3}", prehashString.ToString(), item.TemplateId, item.GetDurability(), item.GetUses());
-            return Utils.HashingUtils.ConvertToSha256(itemHashTemplate);
+
+            prehashString.Append(item.PrehashTemplate());
+            return await Task.Run(() => Utils.HashingUtils.ConvertToSha256(prehashString.ToString()));
         }
+
+        internal static string GetCustomHash(this Item? item) =>
+            Task.Run(() => item?.GetCustomHashAsync()).Result ?? string.Empty;
 #if DEBUG
         internal static string AttributesToString(this Item? item)
         {
@@ -47,27 +96,51 @@ namespace LootValueEX.Extensions
                 return String.Empty;
 
             StringBuilder sb = new StringBuilder();
-            item.Attributes.ForEach(attr => sb.Append($"\n{attr.Id}\n\tName: {attr.Name}\n\tBase Value: {attr.Base()}\n\tString value: {attr.StringValue()}\n\tDisplay Type: {attr.DisplayType()}"));
+            item.Attributes.ForEach(attr =>
+                sb.Append(
+                    $"\n{attr.Id}\n\tName: {attr.Name}\n\tBase Value: {attr.Base()}\n\tString value: {attr.StringValue()}\n\tDisplay Type: {attr.DisplayType()}"));
             return sb.ToString();
         }
 #endif
+
+
+        /// <summary>
+        /// Retrieves the durability of a given item.
+        /// 
+        /// This function takes an optional Item as a parameter and returns its durability.
+        /// If the item is null, it returns -1f. The durability is determined by the item's template.
+        /// </summary>
+        /// <param name="item">The item to retrieve the durability for.</param>
+        /// <returns>The durability of the item, or -1f if the item is null.</returns>
         internal static float GetDurability(this Item? item)
         {
             if (item == null)
                 return -1f;
+
             switch (item.Template)
             {
                 case ArmoredRigTemplate armoredRig:
                 case ArmorTemplate armor:
-                    return Utils.ItemUtils.GetArmorDurability(item.GetItemComponentsInChildren<RepairableComponent>(true));
+                    return Utils.ItemUtils.GetArmorDurability(
+                        item.GetItemComponentsInChildren<RepairableComponent>(true));
                 default:
                     return item.GetItemAttribute(EItemAttributeId.Durability);
             }
         }
+
+        /// <summary>
+        /// Retrieves the number of uses remaining for a given item.
+        /// 
+        /// This function takes an optional Item as a parameter and returns the number of uses remaining.
+        /// If the item is null, it returns -1f. The number of uses is determined by the item's template.
+        /// </summary>
+        /// <param name="item">The item to retrieve the number of uses for.</param>
+        /// <returns>The number of uses remaining for the item, or -1f if the item is null.</returns>
         internal static float GetUses(this Item? item)
         {
             if (item == null)
                 return -1f;
+
             switch (item.Template)
             {
                 case KeycardTemplate:
@@ -77,6 +150,12 @@ namespace LootValueEX.Extensions
                     if (item.TryGetItemComponent(out MedKitComponent medKitComponent))
                         return medKitComponent.HpResource;
                     return -1f;
+                case MagazineTemplate:
+                    MagazineClass? magazineClass = item as MagazineClass;
+                    return magazineClass?.Count ?? -1f;
+                case AmmoBoxTemplate:
+                    AmmoBox? ammoBox = item as AmmoBox;
+                    return ammoBox?.Count ?? -1f;
                 default:
                     return -1f;
             }

Plugin/Patches/Screens/InventoryScreenPatch.cs

@@ -0,0 +1,57 @@
+using System.Diagnostics;
+using System.Reflection;
+using EFT;
+using EFT.HealthSystem;
+using EFT.UI;
+using LootValueEX.Extensions;
+using SPT.Reflection.Patching;
+// ReSharper disable InconsistentNaming
+
+namespace LootValueEX.Patches.Screens
+{
+    internal class InventoryScreenPatch : ModulePatch
+    {
+        protected override MethodBase GetTargetMethod() => typeof(InventoryScreen).GetMethods().SingleOrDefault(method => method.Name == "Show" && method.GetParameters()[0].ParameterType == typeof(IHealthController));
+
+        [PatchPostfix]
+        private static void PatchPostfix(ref Profile ___profile_0, ref LootItemClass ___lootItemClass)
+        {
+            Profile profile = ___profile_0;
+
+            TaskCompletionSource<bool> tcsInventory = new();
+            CancellationTokenSource ctsInventory = new CancellationTokenSource(5000);
+            Task<bool> taskInventory = tcsInventory.Task;
+            Task.Factory.StartNew(async () =>
+            {
+                Stopwatch sw = Stopwatch.StartNew();
+                foreach(EFT.InventoryLogic.Item item in profile.Inventory.GetPlayerItems(EFT.InventoryLogic.EPlayerItems.Equipment))
+                {
+                    //Plugin.Log.LogDebug($"Equip Process: {item.LocalizedName()} ({item.TemplateId}): {await item.GetCustomHashAsync()}");
+                    continue;
+                }
+                sw.Stop();
+                Plugin.Log.LogDebug($"Equipment processing finished in {sw.ElapsedMilliseconds}ms");
+                tcsInventory.SetResult(true);
+            }, ctsInventory.Token);
+
+            if(___lootItemClass != null)
+            {
+                LootItemClass lootItemClass = ___lootItemClass;
+                TaskCompletionSource<bool> tcsLoot = new();
+                CancellationTokenSource ctsLoot = new CancellationTokenSource(5000);
+                Task<bool> taskLoot = tcsLoot.Task;
+                Task.Factory.StartNew(async () =>
+                {
+                    Stopwatch sw = Stopwatch.StartNew();
+                    foreach (EFT.InventoryLogic.Item item in lootItemClass.GetAllItems())
+                    {
+                        //Plugin.Log.LogDebug($"LootItemClass process: {item.LocalizedName()} ({item.TemplateId}): {await item.GetCustomHashAsync()}");
+                        continue;
+                    }
+                    Plugin.Log.LogDebug($"LootItemClass processing finished in {sw.ElapsedMilliseconds}ms");
+                    tcsLoot.SetResult(true);
+                }, ctsLoot.Token);
+            }
+        }
+    }
+}

Plugin/Patches/Tooltips/BarterItemPatch.cs

@@ -5,7 +5,7 @@ using SPT.Reflection.Patching;
 using SPT.Reflection.Utils;
 using System.Reflection;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     /// <summary>
     /// This patch will affect the following screens: Stash, Weapon Preset Builder, Character Gear, Character Preset Selector, New Ragfair Offer, Message Items, Loot

Plugin/Patches/Tooltips/GridItemTooltipPatch.cs

@@ -5,7 +5,7 @@ using SPT.Reflection.Patching;
 using SPT.Reflection.Utils;
 using System.Reflection;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     /// <summary>
     /// This patch will affect the following screens: Stash, Weapon Preset Builder, Character Gear, Character Preset Selector, New Ragfair Offer, Message Items, Loot
@@ -14,7 +14,7 @@ namespace LootValueEX.Patches
     {
         protected override MethodBase GetTargetMethod() => typeof(GridItemView).GetMethod("ShowTooltip", BindingFlags.Instance | BindingFlags.Public);
         internal static bool PatchTooltip { get; private set; } = false;
-        internal static EFT.InventoryLogic.Item? HoveredItem {  get; private set; }
+        internal static Item? HoveredItem { get; private set; }
 
         [PatchPrefix]
         static void EnableTooltipPatch(GridItemView __instance)

Plugin/Patches/Tooltips/HandbookPatching.cs

@@ -7,7 +7,7 @@ using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     internal class HandbookPatching : ModulePatch
     {

Plugin/Patches/Tooltips/InsuranceGridPatch.cs

@@ -2,7 +2,7 @@
 using SPT.Reflection.Patching;
 using System.Reflection;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     class InsuranceGridPatch : ModulePatch
     {

Plugin/Patches/Tooltips/InsuranceSlotPatch.cs

@@ -2,7 +2,7 @@
 using SPT.Reflection.Patching;
 using System.Reflection;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     class InsuranceSlotPatch : ModulePatch
     {

Plugin/Patches/Tooltips/ItemPricePatch.cs

@@ -1,7 +1,7 @@
 using SPT.Reflection.Patching;
 using System.Reflection;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     internal class ItemPricePatch : ModulePatch
     {

Plugin/Patches/Tooltips/TooltipPatch.cs

@@ -10,7 +10,7 @@ using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     internal class TooltipPatch : ModulePatch
     {
@@ -19,12 +19,10 @@ namespace LootValueEX.Patches
         [PatchPostfix]
         public static void AlterText(SimpleTooltip __instance, string text)
         {
-            StackTrace stackTrace = new StackTrace();
-            Plugin.Log.LogDebug("Stacktrace of tooltip call: \n" + stackTrace.ToString());
             if (GridItemTooltipPatch.PatchTooltip)
             {
-                text += $"<br>TemplateID: {GridItemTooltipPatch.HoveredItem?.TemplateId}<br>Template: {GridItemTooltipPatch.HoveredItem?.Template}<br>Item hashsum: {GridItemTooltipPatch.HoveredItem?.GetHashSum()}<br>Custom hash: {GridItemTooltipPatch.HoveredItem?.GetCustomHash()}<br>Item durability: {GridItemTooltipPatch.HoveredItem?.GetDurability()}<br>Item uses: {GridItemTooltipPatch.HoveredItem?.GetUses()}<br><color=#ff0fff><b>GridItemView</b></color>";
-                Plugin.Log.LogDebug(GridItemTooltipPatch.HoveredItem?.AttributesToString());
+                Structs.TradeOfferStruct tradeOffer = Utils.ItemUtils.GetBestTraderValue(GridItemTooltipPatch.HoveredItem);
+                text += $"<br>Hash: {GridItemTooltipPatch.HoveredItem?.GetCustomHash()}<br>Trader: {tradeOffer.TraderID}<br>Value: {tradeOffer.Price}<br>Currency: {tradeOffer.CurrencyID}<br>Price in rubles: {tradeOffer.PriceInRouble}<br><color=#ff0fff><b>GridItemView</b></color>";
             }
             if (InsuranceSlotPatch.PatchTooltip)
             {

Plugin/Patches/Tooltips/TradingItemPatch.cs

@@ -3,7 +3,7 @@ using SPT.Reflection.Patching;
 using SPT.Reflection.Utils;
 using System.Reflection;
 
-namespace LootValueEX.Patches
+namespace LootValueEX.Patches.Tooltips
 {
     class TradingItemPatch : ModulePatch
     {

Plugin/Patches/TraderClassPatch.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using SPT.Reflection.Patching;
+
+namespace LootValueEX.Patches
+{
+    internal class TraderClassPatch : ModulePatch
+    {
+        protected override MethodBase GetTargetMethod() => typeof(TraderClass).GetConstructors().First();
+
+        [PatchPostfix]
+        private static void GenerateSupplyData(ref TraderClass __instance)
+        {
+            Plugin.Log.LogDebug($"Generating Assortment Data for trader {__instance.Id}");
+            __instance.RefreshAssortment(true, true);
+        }
+    }
+}

Plugin/Plugin.cs

@@ -11,14 +11,18 @@ namespace LootValueEX
         {
             Log = base.Logger;
 
-            new Patches.GridItemTooltipPatch().Enable();
-            new Patches.TooltipPatch().Enable();
-            new Patches.InsuranceGridPatch().Enable();
-            new Patches.InsuranceSlotPatch().Enable();
-            new Patches.ItemPricePatch().Enable();
-            new Patches.TradingItemPatch().Enable();
-            new Patches.HandbookPatching().Enable();
-            new Patches.BarterItemPatch().Enable();
+            new Patches.TraderClassPatch().Enable();
+
+            new Patches.Tooltips.GridItemTooltipPatch().Enable();
+            new Patches.Tooltips.TooltipPatch().Enable();
+            new Patches.Tooltips.InsuranceGridPatch().Enable();
+            new Patches.Tooltips.InsuranceSlotPatch().Enable();
+            new Patches.Tooltips.ItemPricePatch().Enable();
+            new Patches.Tooltips.TradingItemPatch().Enable();
+            new Patches.Tooltips.HandbookPatching().Enable();
+            new Patches.Tooltips.BarterItemPatch().Enable();
+
+            new Patches.Screens.InventoryScreenPatch().Enable();
         }
     }
 }

Plugin/Structs/TradeOfferStruct.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace LootValueEX.Structs
+{
+    internal readonly struct TradeOfferStruct
+    {
+        internal readonly string TraderID;
+        internal readonly string CurrencyID;
+        internal readonly int Price;
+        internal readonly float PriceInRouble;
+        internal TradeOfferStruct(string traderId, string currencyId, int price, float priceInRouble)
+        {
+            TraderID = traderId;
+            CurrencyID = currencyId;
+            Price = price;
+            PriceInRouble = priceInRouble;
+        }
+    }
+}

Plugin/Utils/EconomyUtils.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Comfort.Common;
+using EFT.InventoryLogic;
+using SPT.Reflection.Utils;
+using EFTCurrencyUtils = GClass2531;
+
+namespace LootValueEX.Utils
+{
+    internal static class EconomyUtils
+    {
+
+        internal static float ConvertToRuble(string id, float amount)
+        {
+            if (!EFTCurrencyUtils.TryGetCurrencyType(id, out ECurrencyType currencyType))
+                return 0f;
+            if (currencyType.Equals(ECurrencyType.RUB))
+                return amount;
+            return amount * (float)Singleton<HandbookClass>.Instance.GetBasePrice(id);
+        }
+
+        internal static Structs.TradeOfferStruct GetTraderItemOffer(TraderClass trader, Item item)
+        {
+            Plugin.Log.LogDebug($"GetTraderItemOffer: {item.LocalizedName()} - {trader.LocalizedName}");
+            TraderClass.GStruct244? tradeOffer = trader.GetUserItemPrice(item);
+
+            if (tradeOffer == null)
+            {
+                Plugin.Log.LogDebug("GetTraderItemOffer: tradeOffer == null");
+                return default;
+            }
+            if(tradeOffer.Value.Amount > 0)
+            {
+                Plugin.Log.LogDebug($"{trader.LocalizedName}\n\tCurrencyID: {tradeOffer.Value.CurrencyId}\n\tValue: {tradeOffer.Value.Amount}\n\tPrice in RB: {EconomyUtils.ConvertToRuble(tradeOffer.Value.CurrencyId, tradeOffer.Value.Amount)}");
+                return new Structs.TradeOfferStruct(trader.Id, tradeOffer.Value.CurrencyId, tradeOffer.Value.Amount, EconomyUtils.ConvertToRuble(tradeOffer.Value.CurrencyId, tradeOffer.Value.Amount));
+            }
+            Plugin.Log.LogDebug("GetTraderItemOffer: no value");
+            return default;
+        }
+    }
+}

Plugin/Utils/HashingUtils.cs

@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace LootValueEX.Utils
 {
-    internal class HashingUtils
+    internal static class HashingUtils
     {
         internal static string ConvertToSha256(string value)
         {

Plugin/Utils/ItemUtils.cs

@@ -1,17 +1,29 @@
 using EFT.InventoryLogic;
+using LootValueEX.Extensions;
+using SPT.Reflection.Utils;
 
 namespace LootValueEX.Utils
 {
-    internal class ItemUtils
+    internal static class ItemUtils
     {
-        public static float GetArmorDurability(IEnumerable<RepairableComponent> repairableComponents)
+        internal static float GetArmorDurability(IEnumerable<RepairableComponent> repairableComponents) => repairableComponents.Sum(x => x.Durability);
+
+        internal static Task<Structs.TradeOfferStruct> GetBestTraderValueAsync(Item item)
         {
-            float totalDurability = 0;
-            foreach (RepairableComponent component in repairableComponents)
+            Structs.TradeOfferStruct bestOffer = new();
+            item = item.UnstackItem();
+            foreach (TraderClass trader in ClientAppUtils.GetMainApp().GetClientBackEndSession().DisplayableTraders)
             {
-                totalDurability += component.Durability;
+                Structs.TradeOfferStruct currentOffer = EconomyUtils.GetTraderItemOffer(trader, item);
+
+                if (currentOffer.Equals(default) || currentOffer.Price <= 0)
+                    continue;
+
+                if (currentOffer.PriceInRouble > bestOffer.PriceInRouble)
+                    bestOffer = currentOffer;
             }
-            return totalDurability;
+            return Task.FromResult(bestOffer);
         }
+        public static Structs.TradeOfferStruct GetBestTraderValue(Item item) => Task.Run(() => GetBestTraderValueAsync(item)).Result;
     }
 }