From daa43a9ccc576381f4fed304c5ced51aa3a9e3b0 Mon Sep 17 00:00:00 2001
From: Andrew Zhu <me@andrew-zhu.com>
Date: Tue, 19 Apr 2022 18:26:51 -0700
Subject: [PATCH] fix: crash when viewing housing info from non-placard

---
 AutoSweep.csproj          |  2 +-
 Paissa/LotteryObserver.cs | 25 +++++++++++++++++--------
 2 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/AutoSweep.csproj b/AutoSweep.csproj
index fafd8da..af551a1 100644
--- a/AutoSweep.csproj
+++ b/AutoSweep.csproj
@@ -14,7 +14,7 @@
         <DalamudLibPath>$(appdata)\XIVLauncher\addon\Hooks\dev\</DalamudLibPath>
         <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
         <AssemblyName>autoSweep</AssemblyName>
-        <AssemblyVersion>1.3.0.0</AssemblyVersion>
+        <AssemblyVersion>1.3.1.0</AssemblyVersion>
     </PropertyGroup>
 
     <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/Paissa/LotteryObserver.cs b/Paissa/LotteryObserver.cs
index b84de47..0627b33 100644
--- a/Paissa/LotteryObserver.cs
+++ b/Paissa/LotteryObserver.cs
@@ -12,11 +12,11 @@ public unsafe class LotteryObserver {
 
         private delegate void HandlePlacardSaleInfoDelegate(
             void* agentBase,
-            byte isUnowned,
+            HousingType housingType,
             ushort territoryTypeId,
             byte wardId,
             byte plotId,
-            short a6,
+            short apartmentNumber,
             IntPtr placardSaleInfoPtr,
             long a8
         );
@@ -36,25 +36,27 @@ public void Dispose() {
 
         public void OnPlacardSaleInfo(
             void* agentBase,
-            byte isUnowned,
+            HousingType housingType,
             ushort territoryTypeId,
             byte wardId,
             byte plotId,
-            short a6,
+            short apartmentNumber,
             IntPtr placardSaleInfoPtr,
             long a8
         ) {
-            PlacardSaleInfoHook!.Original(agentBase, isUnowned, territoryTypeId, wardId, plotId, a6, placardSaleInfoPtr, a8);
-            
+            PlacardSaleInfoHook!.Original(agentBase, housingType, territoryTypeId, wardId, plotId, apartmentNumber, placardSaleInfoPtr, a8);
+
             // if the plot is owned, ignore it
-            if (isUnowned == 0) return;
+            if (housingType != HousingType.UnownedHouse) return;
+            if (placardSaleInfoPtr == IntPtr.Zero) return;
 
             PlacardSaleInfo saleInfo = PlacardSaleInfo.Read(placardSaleInfoPtr);
 
             PluginLog.LogDebug(
                 $"Got PlacardSaleInfo: PurchaseType={saleInfo.PurchaseType}, TenantType={saleInfo.TenantType}, available={saleInfo.AvailabilityType}, until={saleInfo.PhaseEndsAt}, numEntries={saleInfo.EntryCount}");
             PluginLog.LogDebug($"unknown1={saleInfo.Unknown1}, unknown2={saleInfo.Unknown2}, unknown3={BitConverter.ToString(saleInfo.Unknown3)}");
-            PluginLog.LogDebug($"isUnowned={isUnowned}, territoryTypeId={territoryTypeId}, wardId={wardId}, plotId={plotId}; a6={a6}, a8={a8}");
+            PluginLog.LogDebug(
+                $"housingType={housingType}, territoryTypeId={territoryTypeId}, wardId={wardId}, plotId={plotId}, apartmentNumber={apartmentNumber}, placardSaleInfoPtr={placardSaleInfoPtr}, a8={a8}");
 
             // get information about the world from the clientstate
             World world = plugin.ClientState.LocalPlayer?.CurrentWorld.GameData;
@@ -67,4 +69,11 @@ long a8
             plugin.PaissaClient.PostLotteryInfo(world.RowId, territoryTypeId, wardId, plotId, saleInfo);
         }
     }
+
+    public enum HousingType : byte {
+        OwnedHouse = 0,
+        UnownedHouse = 1,
+        FreeCompanyApartment = 2,
+        Apartment = 3
+    }
 }