create config type loading events

common/api/src/main/java/com/dfsek/terra/api/event/events/config/pack/ConfigPackPreLoadEvent.java

@@ -4,7 +4,7 @@ import com.dfsek.tectonic.config.ConfigTemplate;
 import com.dfsek.terra.api.config.ConfigPack;
 
 /**
- * Called before a config pack's registries are filled. At this point, the pack manifest has been loaded, and all registries are empty.
+ * Called before a config pack's registries are filled.
  */
 public class ConfigPackPreLoadEvent extends ConfigPackLoadEvent {
     public ConfigPackPreLoadEvent(ConfigPack pack, ExceptionalConsumer<ConfigTemplate> configLoader) {

common/api/src/main/java/com/dfsek/terra/api/event/events/config/type/ConfigTypeLoadEvent.java

@@ -0,0 +1,28 @@
+package com.dfsek.terra.api.event.events.config.type;
+
+import com.dfsek.terra.api.config.ConfigPack;
+import com.dfsek.terra.api.config.ConfigType;
+import com.dfsek.terra.api.event.events.PackEvent;
+import com.dfsek.terra.api.registry.CheckedRegistry;
+
+public abstract class ConfigTypeLoadEvent implements PackEvent {
+    private final ConfigType<?, ?> type;
+    private final CheckedRegistry<?> registry;
+
+    public ConfigTypeLoadEvent(ConfigType<?, ?> type, CheckedRegistry<?> registry) {
+        this.type = type;
+        this.registry = registry;
+    }
+
+    @Override
+    public ConfigPack getPack() {
+        return null;
+    }
+
+    @SuppressWarnings("unchecked")
+    public <T> CheckedRegistry<T> getRegistry(Class<T> clazz) {
+        if(!clazz.isAssignableFrom(type.getTypeClass()))
+            throw new ClassCastException("Cannot assign object from loader of type " + type.getTypeClass().getCanonicalName() + " to class " + clazz.getCanonicalName());
+        return (CheckedRegistry<T>) registry;
+    }
+}

common/api/src/main/java/com/dfsek/terra/api/event/events/config/type/ConfigTypePostLoadEvent.java

@@ -0,0 +1,10 @@
+package com.dfsek.terra.api.event.events.config.type;
+
+import com.dfsek.terra.api.config.ConfigType;
+import com.dfsek.terra.api.registry.CheckedRegistry;
+
+public class ConfigTypePostLoadEvent extends ConfigTypeLoadEvent{
+    public ConfigTypePostLoadEvent(ConfigType<?, ?> type, CheckedRegistry<?> registry) {
+        super(type, registry);
+    }
+}

common/api/src/main/java/com/dfsek/terra/api/event/events/config/type/ConfigTypePreLoadEvent.java

@@ -0,0 +1,10 @@
+package com.dfsek.terra.api.event.events.config.type;
+
+import com.dfsek.terra.api.config.ConfigType;
+import com.dfsek.terra.api.registry.CheckedRegistry;
+
+public class ConfigTypePreLoadEvent extends ConfigTypeLoadEvent{
+    public ConfigTypePreLoadEvent(ConfigType<?, ?> type, CheckedRegistry<?> registry) {
+        super(type, registry);
+    }
+}

common/implementation/src/main/java/com/dfsek/terra/config/pack/ConfigPackImpl.java

@@ -22,6 +22,8 @@ import com.dfsek.terra.api.event.events.config.ConfigurationLoadEvent;
 import com.dfsek.terra.api.event.events.config.pack.ConfigPackPostLoadEvent;
 import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
 import com.dfsek.terra.api.event.events.config.ConfigurationDiscoveryEvent;
+import com.dfsek.terra.api.event.events.config.type.ConfigTypePostLoadEvent;
+import com.dfsek.terra.api.event.events.config.type.ConfigTypePreLoadEvent;
 import com.dfsek.terra.api.registry.CheckedRegistry;
 import com.dfsek.terra.api.registry.OpenRegistry;
 import com.dfsek.terra.api.registry.exception.DuplicateEntryException;
@@ -244,6 +246,7 @@ public class ConfigPackImpl implements ConfigPack {
 
         for(ConfigType<?, ?> configType : configTypeRegistry.entries()) { // Load the configs
             CheckedRegistry registry = getCheckedRegistry(configType.getTypeClass());
+            main.getEventManager().callEvent(new ConfigTypePreLoadEvent(configType, registry));
             for(AbstractConfiguration config : abstractConfigLoader.loadConfigs(configs.getOrDefault(configType, Collections.emptyList()))) {
                 try {
                     Object loaded = ((ConfigFactory) configType.getFactory()).build(selfLoader.load(configType.getTemplate(this, main), config), main);
@@ -253,6 +256,7 @@ public class ConfigPackImpl implements ConfigPack {
                     throw new LoadException("Duplicate registry entry: ", e);
                 }
             }
+            main.getEventManager().callEvent(new ConfigTypePostLoadEvent(configType, registry));
         }
 
         main.getEventManager().callEvent(new ConfigPackPostLoadEvent(this, template -> selfLoader.load(template, configuration)));