move getExpansionCount to metrics

Author: HSGamer

src/main/java/me/hsgamer/bettergui/BetterGUI.java

@@ -25,7 +25,9 @@
 import org.bukkit.plugin.java.JavaPlugin;
 
 import java.util.Arrays;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * The main class of the plugin
@@ -94,7 +96,11 @@ public void postEnable() {
     get(AddonManager.class).call(PostEnable.class, PostEnable::postEnable);
 
     Metrics metrics = new Metrics(this, 6609);
-    metrics.addCustomChart(new AdvancedPie("addon_count", get(AddonManager.class)::getExpansionCount));
+    metrics.addCustomChart(new AdvancedPie("addon_count", () -> {
+      Map<String, Integer> map = new HashMap<>();
+      get(AddonManager.class).getEnabledExpansions().keySet().forEach(s -> map.put(s, 1));
+      return map;
+    }));
 
     if (getDescription().getVersion().contains("SNAPSHOT")) {
       getLogger().warning("You are using the development version");

src/main/java/me/hsgamer/bettergui/manager/AddonManager.java

@@ -92,17 +92,6 @@ private void checkPluginDepends(@NotNull ExpansionClassLoader loader) {
     }
   }
 
-  /**
-   * Get expansion count
-   *
-   * @return the expansion count
-   */
-  public Map<String, Integer> getExpansionCount() {
-    Map<String, Integer> map = new HashMap<>();
-    getEnabledExpansions().keySet().forEach(s -> map.put(s, 1));
-    return map;
-  }
-
   /**
    * Get the plugin
    *