From 880b1f30661269a377b021f7cb4fa700e9075607 Mon Sep 17 00:00:00 2001
From: Filip Maj <filipmaj@gmail.com>
Date: Sat, 7 Apr 2018 15:34:11 -0400
Subject: [PATCH] Fixed the crash when class change is to a level 0 class. Now
 autosets to level 1.

---
 FFXIVClassic Map Server/Database.cs           | 80 +++++++++++++++++++
 .../actors/chara/player/Player.cs             | 12 +++
 2 files changed, 92 insertions(+)

diff --git a/FFXIVClassic Map Server/Database.cs b/FFXIVClassic Map Server/Database.cs
index 093ff0f3..c90ef0e8 100644
--- a/FFXIVClassic Map Server/Database.cs	
+++ b/FFXIVClassic Map Server/Database.cs	
@@ -2352,5 +2352,85 @@ namespace FFXIVClassic_Map_Server
             }
         }
 
+        public static void PlayerCharacterUpdateClassLevel(Player player, byte classId, short level)
+        {
+            string query;
+            MySqlCommand cmd;
+
+            string[] classNames = {
+                "",
+                "",
+                "pug",
+                "gla",
+                "mrd",
+                "",
+                "",
+                "arc",
+                "lnc",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "thm",
+                "cnj",
+                "",
+                "",
+                "",
+                "",
+                "",
+                "crp",
+                "bsm",
+                "arm",
+                "gsm",
+                "ltw",
+                "wvr",
+                "alc",
+                "cul",
+                "",
+                "",
+                "min",
+                "btn",
+                "fsh"
+            };
+            
+            using (MySqlConnection conn = new MySqlConnection(String.Format("Server={0}; Port={1}; Database={2}; UID={3}; Password={4}", ConfigConstants.DATABASE_HOST, ConfigConstants.DATABASE_PORT, ConfigConstants.DATABASE_NAME, ConfigConstants.DATABASE_USERNAME, ConfigConstants.DATABASE_PASSWORD)))
+            {
+                try
+                {
+                    conn.Open();
+
+                    query = String.Format(@"
+                    UPDATE characters_class_levels
+                    SET
+                    {0}=@level
+                    WHERE
+                    characterId = @characterId", classNames[classId]);
+
+                    cmd = new MySqlCommand(query, conn);
+                    cmd.Parameters.AddWithValue("@level", level);
+                    cmd.Parameters.AddWithValue("@characterId", player.actorId);
+
+                    cmd.ExecuteNonQuery();
+                }
+                catch (MySqlException e)
+                {
+                    Program.Log.Error(e.ToString());
+                }
+                finally
+                {
+                    conn.Dispose();
+                }
+            }
+        }
+
     }
 }
diff --git a/FFXIVClassic Map Server/actors/chara/player/Player.cs b/FFXIVClassic Map Server/actors/chara/player/Player.cs
index c54d7393..6a28e76c 100644
--- a/FFXIVClassic Map Server/actors/chara/player/Player.cs	
+++ b/FFXIVClassic Map Server/actors/chara/player/Player.cs	
@@ -990,6 +990,8 @@ namespace FFXIVClassic_Map_Server.Actors
         public void PrepareClassChange(byte classId)
         {            
             //If new class, init abilties and level
+            if (charaWork.battleSave.skillLevel[classId - 1] <= 0)
+                UpdateClassLevel(classId, 1);
 
             SendCharaExpInfo();
         }
@@ -1038,6 +1040,16 @@ namespace FFXIVClassic_Map_Server.Actors
             Database.SavePlayerCurrentClass(this);
         }
 
+        public void UpdateClassLevel(byte classId, short level)
+        {
+            Database.PlayerCharacterUpdateClassLevel(this, classId, level);
+            charaWork.battleSave.skillLevel[classId - 1] = level;
+            ActorPropertyPacketUtil propertyBuilder = new ActorPropertyPacketUtil("charaWork/exp", this);
+            propertyBuilder.AddProperty(String.Format("charaWork.battleSave.skillLevel[{0}]", classId-1));
+            List<SubPacket> packets = propertyBuilder.Done();
+            QueuePackets(packets);
+        }
+
         public void GraphicChange(int slot, InventoryItem invItem)
         {
             if (invItem == null)