Implement teleport form instead of requiring level name

Author: KCodeYT

src/main/java/de/kcodeyt/plotplugin/PlotPlugin.java

@@ -52,6 +52,7 @@ public class PlotPlugin extends PluginBase {
     @Getter
     private Language language;
 
+    @Getter
     private Map<String, PlotManager> plotManagerMap;
     private PlayerManager playerManager;
 

src/main/java/de/kcodeyt/plotplugin/command/defaults/TeleportCommand.java

@@ -17,37 +17,64 @@
 package de.kcodeyt.plotplugin.command.defaults;
 
 import cn.nukkit.Player;
-import cn.nukkit.command.data.CommandParamType;
-import cn.nukkit.command.data.CommandParameter;
+import cn.nukkit.event.EventHandler;
+import cn.nukkit.event.Listener;
+import cn.nukkit.event.player.PlayerFormRespondedEvent;
+import cn.nukkit.form.element.ElementButton;
+import cn.nukkit.form.response.FormResponse;
+import cn.nukkit.form.response.FormResponseSimple;
+import cn.nukkit.form.window.FormWindowSimple;
 import de.kcodeyt.plotplugin.PlotPlugin;
 import de.kcodeyt.plotplugin.command.SubCommand;
 import de.kcodeyt.plotplugin.manager.PlotManager;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Consumer;
+
 public class TeleportCommand extends SubCommand {
 
+    private final Map<Player, Map<Integer, Consumer<FormResponse>>> map;
+
     public TeleportCommand(PlotPlugin plugin) {
         super(plugin, "teleport", "tp");
         this.setPermission("plot.command.admin.teleport");
-        this.addParameter(CommandParameter.newType("level", CommandParamType.STRING));
+
+        this.map = new HashMap<>();
+
+        this.plugin.getServer().getPluginManager().registerEvents(new Listener() {
+            @EventHandler
+            public void onResponded(PlayerFormRespondedEvent event) {
+                final Map<Integer, Consumer<FormResponse>> map;
+                if((map = TeleportCommand.this.map.get(event.getPlayer())) != null) {
+                    final Consumer<FormResponse> consumer = map.get(event.getFormID());
+                    if(consumer != null) consumer.accept(event.getResponse());
+                }
+            }
+        }, this.plugin);
     }
 
     @Override
     public boolean execute(Player player, String[] args) {
-        final String levelName = args.length > 0 ? args[0] : "";
+        Map<Integer, Consumer<FormResponse>> map;
+        if((map = this.map.get(player)) == null)
+            this.map.put(player, map = new HashMap<>());
+
+        final Map<String, PlotManager> plotManagers = this.plugin.getPlotManagerMap();
+        final FormWindowSimple window = new FormWindowSimple(this.translate("teleport-form-title"), "");
 
-        if(levelName.trim().isEmpty()) {
-            player.sendMessage(this.translate("no-world"));
-            return false;
-        }
+        for(String levelName : plotManagers.keySet())
+            window.addButton(new ElementButton(levelName));
 
-        final PlotManager plotManager = this.plugin.getPlotManager(levelName);
-        if(plotManager == null) {
-            player.sendMessage(this.translate("teleport-no-plot-world"));
-            return false;
-        }
+        map.put(player.showFormWindow(window), response -> {
+            if(response instanceof FormResponseSimple) {
+                final PlotManager plotManager = plotManagers.get(((FormResponseSimple) response).getClickedButton().getText());
+                if(plotManager == null) return;
 
-        player.teleport(plotManager.getLevel().getSpawnLocation());
-        player.sendMessage(this.translate("teleport-success", plotManager.getLevel().getFolderName()));
+                player.teleport(plotManager.getLevel().getSpawnLocation());
+                player.sendMessage(this.translate("teleport-success", plotManager.getLevel().getFolderName()));
+            }
+        });
         return false;
     }