Call into server during raid creation to get a replacement value for _raidSettings.SelectedLocation.EscapeTimeLimit

project/Aki.SinglePlayer/AkiSingleplayerPlugin.cs

@@ -55,6 +55,7 @@ namespace Aki.SinglePlayer
                 new InsuredItemManagerStartPatch().Enable();
                 new MapReadyButtonPatch().Enable();
                 new LabsKeycardRemovalPatch().Enable();
+                new ScavLateStartPatch().Enable();
             }
             catch (Exception ex)
             {

project/Aki.SinglePlayer/Patches/ScavMode/ScavLateStartPatch.cs

@@ -0,0 +1,73 @@
+using Aki.Common.Http;
+using Aki.Common.Utils;
+using Aki.Reflection.Patching;
+using Aki.Reflection.Utils;
+using EFT;
+using System;
+using System.Linq;
+using System.Reflection;
+
+namespace Aki.SinglePlayer.Patches.ScavMode
+{
+    /// <summary>
+    /// Just before converting the `EscapeTimeLimit` value from _raidsettings.SelectedLocation.EscapeTimeLimit
+    /// into a TimeSpam, call into server and get a different value
+    /// If -1 is passed in return the original value
+    /// </summary>
+    public class ScavLateStartPatch : ModulePatch
+    {
+        protected override MethodBase GetTargetMethod()
+        {
+            var desiredType = PatchConstants.EftTypes.Single(x => x.Name == "TarkovApplication");
+            var desiredMethod = Array.Find(desiredType.GetMethods(PatchConstants.PrivateFlags), IsTargetMethod);
+
+            Logger.LogDebug($"{this.GetType().Name} Type: {desiredType?.Name}");
+            Logger.LogDebug($"{this.GetType().Name} Method: {desiredMethod?.Name}");
+
+            return desiredMethod;
+        }
+
+        private bool IsTargetMethod(MethodInfo arg)
+        {
+            // method_44 as of 26535
+            var parameters = arg.GetParameters();
+            return parameters.Length == 1
+                && parameters[0]?.Name == "defaultMinutes"
+                && arg.ReturnType == typeof(TimeSpan);
+        }
+
+        [PatchPrefix]
+        private static bool PatchPrefix(int defaultMinutes, ref TimeSpan __result, RaidSettings ____raidSettings)
+        {
+            var request = new RaidTimeRequest(____raidSettings.Side, ____raidSettings.SelectedLocation.Id);
+            var json = RequestHandler.PostJson("/singleplayer/settings/getRaidTime", Json.Serialize(request));
+            var serverResult = Json.Deserialize<RaidTimeResponse>(json);
+
+            if (serverResult.RaidTimeMinutes == -1)
+            {
+                // Default value passed in, make no changes
+                return true;
+            }
+
+            __result = TimeSpan.FromSeconds(60 * serverResult.RaidTimeMinutes);
+            return false; // Skip original
+        }
+
+        public class RaidTimeResponse
+        {
+            public int RaidTimeMinutes { get; set; }
+        }
+
+        public class RaidTimeRequest
+        {
+            public RaidTimeRequest(ESideType side, string location)
+            {
+                Side = side;
+                Location = location;
+            }
+
+            public ESideType Side { get; set; }
+            public string Location { get; set; }
+        }
+    }
+}