Implement !disc command and improve !giveall to apply properties

src/main/java/emu/nebula/command/commands/DiscCommand.java

@@ -0,0 +1,82 @@
+package emu.nebula.command.commands;
+
+import emu.nebula.util.Utils;
+import emu.nebula.game.character.GameDisc;
+import emu.nebula.net.NetMsgId;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+
+import emu.nebula.command.Command;
+import emu.nebula.command.CommandArgs;
+import emu.nebula.command.CommandHandler;
+
+@Command(
+        label = "disc", 
+        aliases = {"d"}, 
+        permission = "player.character", 
+        requireTarget = true, 
+        desc = "!d [all | {discId}] lv(level) a(ascension) c(crescendo level)"
+)
+public class DiscCommand implements CommandHandler {
+
+    @Override
+    public void execute(CommandArgs args) {
+        // Init
+        var player = args.getTarget();
+        var discs = new HashSet<GameDisc>();
+        
+        // Parse args
+        for (String arg : args.getList()) {
+            // Lowercase
+            arg = arg.toLowerCase();
+            
+            // Handle all discs
+            if (arg.equals("all")) {
+                discs.addAll(player.getCharacters().getDiscCollection());
+                continue;
+            }
+            
+            // Parse disc id
+            int charId = Utils.parseSafeInt(arg);
+            
+            var disc = player.getCharacters().getDiscById(charId);
+            if (disc == null) {
+                continue;
+            }
+            
+            discs.add(disc);
+        }
+        
+        // Sanity check
+        if (discs.isEmpty()) {
+            return;
+        }
+        
+        // List of modified characters that we send to the client for updates
+        var modified = new ArrayList<GameDisc>();
+        
+        // Modify characters
+        for (var disc : discs) {
+            // Apply changes
+            boolean changed = args.setProperties(disc);
+            
+            if (changed) {
+                // Save to database
+                disc.save();
+                
+                // Add to modified list
+                modified.add(disc);
+            }
+        }
+        
+        if (modified.isEmpty()) {
+            return;
+        }
+        
+        // Encode and send
+        for (var disc : modified) {
+            player.addNextPackage(NetMsgId.disc_reset_notify, disc.toProto());
+        }
+    }
+}