Implement sending gifts

src/main/java/emu/nebula/server/handlers/HandlerCharAffinityGiftSendReq.java

@@ -0,0 +1,48 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.CharAffinityGiftSend.CharAffinityGiftSendReq;
+import emu.nebula.proto.CharAffinityGiftSend.CharAffinityGiftSendResp;
+import emu.nebula.net.HandlerId;
+import emu.nebula.game.inventory.ItemParamMap;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.char_affinity_gift_send_req)
+public class HandlerCharAffinityGiftSendReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = CharAffinityGiftSendReq.parseFrom(message);
+        
+        // Get character
+        var character = session.getPlayer().getCharacters().getCharacterById(req.getCharId());
+        if (character == null) {
+            return session.encodeMsg(NetMsgId.char_affinity_gift_send_failed_ack);
+        }
+        
+        // Parse item templates
+        var items = ItemParamMap.fromTemplates(req.getItems());
+        
+        // Send gifts
+        var change = character.sendGift(items);
+        
+        if (change == null) {
+            return session.encodeMsg(NetMsgId.char_affinity_gift_send_failed_ack);
+        }
+        
+        // Build response
+        var rsp = CharAffinityGiftSendResp.newInstance()
+                .setChange(change.toProto());
+        
+        rsp.getMutableInfo()
+                .setCharId(character.getCharId())
+                .setAffinityLevel(character.getAffinityLevel())
+                .setAffinityExp(character.getAffinityExp());
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.char_affinity_gift_send_succeed_ack, rsp);
+    }
+
+}