add code to detect thargoid combat zones

EDPlayerJournal/BGS/CombatZone.cs

@@ -9,9 +9,9 @@ public class CombatZone : Transaction {
     public string Type { get; set; } = CombatZones.ShipCombatZone;
 
     /// <summary>
-    /// Difficulty type, low, medium or high.
+    /// Difficulty type, low, medium or high. Null means unknown.
     /// </summary>
-    public string Grade { get; set; } = CombatZones.DifficultyLow;
+    public string? Grade { get; set; }
 
     /// <summary>
     /// Whether spec ops were won.
@@ -91,6 +91,10 @@ public class CombatZone : Transaction {
     }
 
     public override string ToString() {
+        if (Grade != null) {
             return string.Format("Won {0} {1} Combat Zone", Grade, Type);
+        } else {
+            return string.Format("Won {0} Combat Zone", Type);
+        }
     }
 }

EDPlayerJournal/BGS/TransactionParser.cs

@@ -34,6 +34,16 @@ internal class TransactionParserContext {
     /// </summary>
     public ulong ShipKills { get; set; } = 0;
 
+    /// <summary>
+    /// Thargoid scouts killed
+    /// </summary>
+    public ulong ThargoidScoutKills { get; set; } = 0;
+
+    /// <summary>
+    /// Thargoid interceptor kills
+    /// </summary>
+    public ulong ThargoidInterceptorKills { get; set; } = 0;
+
     /// <summary>
     /// A list of accepted missions index by their mission ID
     /// </summary>
@@ -57,7 +67,7 @@ internal class TransactionParserContext {
     public Dictionary<string, long> BuyCost = new();
 
     public void DiscernCombatZone(TransactionList transactions, Entry e) {
-        string grade = CombatZones.DifficultyLow;
+        string? grade = CombatZones.DifficultyLow;
         string cztype;
         ulong? highest = HighestCombatBond;
 
@@ -100,6 +110,11 @@ internal class TransactionParserContext {
                 }
             }
             cztype = CombatZones.ShipCombatZone;
+        } else if (ThargoidScoutKills > 0 && ThargoidInterceptorKills > 0) {
+            // Could be a thargoid combat zones if interceptors and scouts are there
+            cztype = CombatZones.ThargoidCombatZone;
+            // Still unknown
+            grade = null;
         } else {
             transactions.AddIncomplete(new CombatZone(), "Failed to discern combat zone type");
             return;
@@ -144,6 +159,8 @@ internal class TransactionParserContext {
         LastRecordedAwardingFaction = null;
         OnFootKills = 0;
         ShipKills = 0;
+        ThargoidInterceptorKills = 0;
+        ThargoidScoutKills = 0;
     }
 
     public void BoughtCargo(string? cargo, long? cost) {
@@ -776,6 +793,15 @@ internal class FactionKillBondParser : TransactionParserPart {
                 IsLegacy = context.IsLegacy,
             });
 
+            ThargoidVessel vessel = Thargoid.GetVesselByPayout(entry.Reward);
+            if (vessel != ThargoidVessel.Unknown) {
+                if (vessel == ThargoidVessel.Scout) {
+                    ++context.ThargoidScoutKills;
+                } else {
+                    ++context.ThargoidInterceptorKills;
+                }
+            }
+
             // We are done
             return;
         }