From e2c763592c3a9b43af0d11c44b32e9629a67ad8e Mon Sep 17 00:00:00 2001
From: kuroppoi <68156848+kuroppoi@users.noreply.github.com>
Date: Tue, 31 Oct 2023 02:42:23 +0100
Subject: [PATCH] Add game config override support

---
 .../gameserver/GameConfiguration.java         | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/gameserver/src/main/java/brainwine/gameserver/GameConfiguration.java b/gameserver/src/main/java/brainwine/gameserver/GameConfiguration.java
index a7df314..b3b8492 100644
--- a/gameserver/src/main/java/brainwine/gameserver/GameConfiguration.java
+++ b/gameserver/src/main/java/brainwine/gameserver/GameConfiguration.java
@@ -2,6 +2,8 @@ package brainwine.gameserver;
 
 import static brainwine.shared.LogMarkers.SERVER_MARKER;
 
+import java.io.File;
+import java.io.FileInputStream;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -50,6 +52,7 @@ public class GameConfiguration {
         options.setMaxAliasesForCollections(Short.MAX_VALUE);
         yaml = new Yaml(options);
         loadConfigFiles();
+        loadConfigOverrides();
         logger.info(SERVER_MARKER, "Configuring ...");
         configure();
         logger.info(SERVER_MARKER, "Caching versioned configurations ...");
@@ -203,6 +206,25 @@ public class GameConfiguration {
         }
     }
     
+    private static void loadConfigOverrides() {
+        try {
+            File configOverridesFile = new File("config_overrides.yml");
+            
+            if(!configOverridesFile.exists()) {
+                logger.info(SERVER_MARKER, "No config overrides found. To override game config properties, put them in a file called 'config_overrides.yml'");
+                return;
+            }
+            
+            try(FileInputStream inputStream = new FileInputStream(configOverridesFile)) {
+                Map<String, Object> configOverrides = yaml.load(inputStream);
+                merge(baseConfig, configOverrides);
+                logger.warn(SERVER_MARKER, "Configuration overrides have been loaded, proceed with caution.");
+            }
+        } catch(Exception e) {
+            logger.error(SERVER_MARKER, "Could not load configuration overrides", e);
+        }
+    }
+    
     private static void merge(Map<String, Object> dst, Map<String, Object> src) {
         src.forEach((k, v) -> {
             if(dst.containsKey(k)) {