Add Malts converter (#20)

Author: Jsinco

src/main/java/com/drtshock/playervaults/commands/ConvertCommand.java

@@ -44,6 +44,7 @@ public ConvertCommand(PlayerVaults plugin) {
         converters.add(new UniVaultsConverter());
         converters.add(new XVaultsConverter());
         converters.add(new FairyVaultsConverter());
+        converters.add(new MaltsConverter());
         this.plugin = plugin;
     }
 

src/main/java/com/drtshock/playervaults/converters/MaltsConverter.java

@@ -0,0 +1,60 @@
+package com.drtshock.playervaults.converters;
+
+import com.drtshock.playervaults.PlayerVaults;
+import com.drtshock.playervaults.vaultmanagement.VaultManager;
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+import org.bukkit.inventory.Inventory;
+
+import java.util.Collection;
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+import java.util.logging.Level;
+
+public class MaltsConverter implements Converter {
+
+    private static final String MALTS_API = "dev.jsinco.malts.api.MaltsAPI";
+
+
+    @Override
+    public int run(CommandSender initiator) {
+        PlayerVaults plugin = PlayerVaults.getInstance();
+        VaultManager vaultManager = VaultManager.getInstance();
+        int convertedCount = 0;
+
+        try {
+            CompletableFuture<Collection<Object>> allVaults = (CompletableFuture<Collection<Object>>) Class.forName(MALTS_API).getDeclaredMethod("getAllVaults").invoke(null);
+            Collection<Object> vaults = allVaults.join(); // Block thread I guess
+
+
+            for (Object vault : vaults) {
+                try {
+                    UUID owner = (UUID) vault.getClass().getMethod("getOwner").invoke(vault);
+                    int id = (int) vault.getClass().getMethod("getId").invoke(vault);
+                    Inventory inventory = (Inventory) vault.getClass().getMethod("getInventory").invoke(vault);
+
+                    vaultManager.saveVault(inventory, owner.toString(), id);
+                    convertedCount++;
+                } catch (ReflectiveOperationException e) {
+                    plugin.getLogger().severe("Failed to convert a vault: " + e.getMessage());
+                }
+            }
+            initiator.sendMessage("Converted " + convertedCount + " vaults from Malts.");
+
+        } catch (ReflectiveOperationException e) {
+            initiator.getServer().getLogger().log(Level.SEVERE, "Failed to convert vaults", e);
+            return -1;
+        }
+        return convertedCount;
+    }
+
+    @Override
+    public boolean canConvert() {
+        return Bukkit.getServer().getPluginManager().isPluginEnabled("Malts");
+    }
+
+    @Override
+    public String getName() {
+        return "Malts";
+    }
+}