feat(expansion): add %townyplus_town_NAME_networth%

src/main/java/me/romvnly/TownyPlus/TownyPlusExpansion.java

@@ -1,12 +1,23 @@
 package me.romvnly.TownyPlus;
 
+import com.palmergames.bukkit.towny.TownyAPI;
+import com.palmergames.bukkit.towny.object.Resident;
+import com.palmergames.bukkit.towny.object.Town;
+import com.palmergames.bukkit.towny.object.economy.Account;
 import me.clip.placeholderapi.expansion.PlaceholderExpansion;
+import me.romvnly.TownyPlus.util.Debug;
 import org.bukkit.OfflinePlayer;
 import org.jetbrains.annotations.NotNull;
 
+import java.util.List;
+
 public class TownyPlusExpansion extends PlaceholderExpansion {
     TownyPlusMain plugin;
+
+    // Although this class does technically need Towny, the plugin will already be disabled if Towny is not present or enabled.
+
     public TownyPlusExpansion() {
+        super();
         plugin = TownyPlusMain.plugin;
     }
     @Override
@@ -23,19 +34,47 @@ public TownyPlusExpansion() {
     public @NotNull String getVersion() {
         return plugin.getDescription().getVersion();
     }
+    @Override
+    public boolean canRegister() {
+        return true;
+    }
+
+    @Override
+    public boolean persist() {
+        return true; // This is required or else PlaceholderAPI will unregister the Expansion on reload
+    }
+
+    @Override
     public String onRequest(OfflinePlayer player, String placeholder) {
-        if(placeholder.equalsIgnoreCase("name")) {
+        if (placeholder.equalsIgnoreCase("name")) {
             return player == null ? null : player.getName(); // "name" requires the player to be valid
         }
 
-        if(placeholder.equalsIgnoreCase("stats")) {
+        if (placeholder.equalsIgnoreCase("stats")) {
             return "Placeholder Text 1";
         }
 
-        if(placeholder.equalsIgnoreCase("placeholder2")) {
+        if (placeholder.equalsIgnoreCase("placeholder2")) {
             return "Placeholder Text 2";
         }
 
+        if (placeholder.startsWith("town_") && placeholder.endsWith("_networth")) {
+            String placeholderTown = placeholder.substring(5, placeholder.length() - 9);
+            Town town = TownyAPI.getInstance().getTown(placeholderTown);
+            if (town == null) return null;
+            List < Resident > residents = town.getResidents();
+            double networth = 0;
+            for (Resident resident: residents) {
+                Account residentAccount = resident.getAccountOrNull();
+                if (residentAccount != null) {
+                    networth += residentAccount.getHoldingBalance();
+                } else {
+                    Debug.log("Resident " + resident.getName() + " has no account! (Town: " + town.getName() + ")");
+                }
+            }
+            return networth + "";
+        }
+
         return null; // Placeholder is unknown by the Expansion
     }
-}
+}