add a new entry subclass for MarketBuy

Entry.cs

@@ -20,6 +20,7 @@ namespace EDJournal {
             { Events.FSDJump, typeof(FSDJumpEntry) },
             { Events.HullDamage, typeof(HullDamageEntry) },
             { Events.Location, typeof(LocationEntry) },
+            { Events.MarketBuy, typeof(MarketBuyEntry) },
             { Events.MarketSell, typeof(MarketSellEntry) },
             { Events.MissionAbandoned, typeof(MissionAbandonedEntry) },
             { Events.MissionAccepted, typeof(MissionAcceptedEntry) },

Events.cs

@@ -9,6 +9,7 @@
         public static readonly string FSDJump = "FSDJump";
         public static readonly string HullDamage = "HullDamage";
         public static readonly string Location = "Location";
+        public static readonly string MarketBuy = "MarketBuy";
         public static readonly string MarketSell = "MarketSell";
         public static readonly string MissionAbandoned = "MissionAbandoned";
         public static readonly string MissionAccepted = "MissionAccepted";

MarketBuyEntry.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EDJournal {
+    public class MarketBuyEntry : Entry {
+        public string Type { get; set; }
+        public int Count { get; set; }
+        public int BuyPrice { get; set; }
+        public int TotalCost { get; set; }
+
+        protected override void Initialise() {
+            Type = JSON.Value<string>("Type") ?? "";
+            Count = JSON.Value<int?>("Count") ?? 0;
+            BuyPrice = JSON.Value<int?>("BuyPrice") ?? 0;
+            TotalCost = JSON.Value<int?>("TotalCost") ?? 0;
+        }
+    }
+}

edjournal.csproj

@@ -55,6 +55,7 @@
     <Compile Include="JournalFile.cs" />
     <Compile Include="JournalStream.cs" />
     <Compile Include="LocationEntry.cs" />
+    <Compile Include="MarketBuyEntry.cs" />
     <Compile Include="MarketSellEntry.cs" />
     <Compile Include="MissionAbandonedEntry.cs" />
     <Compile Include="MissionAcceptedEntry.cs" />