fix(config): load and bind the injected config instance

playtime-core/src/main/java/com/github/imdmk/playtime/core/config/ConfigFactory.java

@@ -15,5 +15,14 @@ <T extends ConfigSection> T instantiate(Class<T> type) {
             );
         }
     }
-}
 
+    <T extends ConfigSection> T initialize(T config) {
+        try {
+            return ConfigManager.initialize(config);
+        } catch (OkaeriException e) {
+            throw new ConfigCreateException(
+                    "Failed to initialize config: " + config.getClass().getName(), e
+            );
+        }
+    }
+}

playtime-core/src/main/java/com/github/imdmk/playtime/core/config/ConfigService.java

@@ -35,13 +35,25 @@ public ConfigService(File dataFolder) {
     }
 
     public <C extends ConfigSection> C create(Class<C> type) {
-        C config = factory.instantiate(type);
+        return adopt(factory.instantiate(type));
+    }
+
+    /**
+     * Binds an already existing config instance to its file, loads it and registers it.
+     * <p>
+     * This must be used for instances that are shared with other components (e.g. created
+     * by the dependency injector), otherwise those components would keep an unloaded
+     * instance holding only the hardcoded defaults.
+     */
+    public <C extends ConfigSection> C adopt(C config) {
+        factory.initialize(config);
+
         File file = new File(dataFolder, config.fileName());
 
         configurer.configure(config, file, config.serdesPack());
         lifecycle.initialize(config);
 
-        register(type, config);
+        register(config.getClass(), config);
         return config;
     }
 

playtime-core/src/main/java/com/github/imdmk/playtime/core/injector/processor/processors/ConfigFileProcessor.java

@@ -5,6 +5,7 @@
 import com.github.imdmk.playtime.core.injector.annotations.ConfigFile;
 import com.github.imdmk.playtime.core.injector.processor.ComponentProcessor;
 import com.github.imdmk.playtime.core.injector.processor.ComponentProcessorContext;
+import eu.okaeri.configs.OkaeriConfig;
 import org.panda_lang.utilities.inject.Resources;
 
 import java.lang.reflect.Field;
@@ -35,11 +36,22 @@ public void process(
                 ConfigFile.class
         );
 
-        configService.create(config.getClass());
+        // The very same instance must be loaded and bound, otherwise every component
+        // injecting this config would receive an unloaded copy holding only the defaults.
+        configService.adopt(config);
+
         resources.on(config.getClass())
-                .assignInstance(instance);
+                .assignInstance(config);
+
+        bindSections(config, resources);
+    }
 
+    private void bindSections(ConfigSection config, Resources resources) {
         for (Field field : config.getClass().getFields()) {
+            if (!OkaeriConfig.class.isAssignableFrom(field.getType())) {
+                continue;
+            }
+
             try {
                 Object value = field.get(config);
                 if (value != null) {