Implement Finale Echoing sweep

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

@@ -0,0 +1,56 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.JointDrillSweep.JointDrillSweepReq;
+import emu.nebula.proto.JointDrillSweep.JointDrillSweepResp;
+import emu.nebula.proto.Public.ItemTpls;
+import emu.nebula.net.HandlerId;
+
+import java.util.List;
+
+import emu.nebula.game.activity.type.JointDrillActivity;
+import emu.nebula.game.inventory.ItemParamMap;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.joint_drill_sweep_req)
+public class HandlerJointDrillSweepReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Get joint drill activity
+        var activity = session.getPlayer().getActivityManager().getFirstActivity(JointDrillActivity.class);
+        
+        if (activity == null) {
+            return session.encodeMsg(NetMsgId.joint_drill_sweep_failed_ack);
+        }
+        
+        // Parse request
+        var req = JointDrillSweepReq.parseFrom(message);
+        
+        // Apply for joint drill stage
+        var change = activity.sweep(req.getLevelId(), req.getCount());
+        
+        if (change == null) {
+            return session.encodeMsg(NetMsgId.joint_drill_sweep_failed_ack);
+        }
+        
+        // Create response packet
+        var rsp = JointDrillSweepResp.newInstance()
+                .setChange(change.toProto());
+        
+        // Encode sweep rewards to proto
+        @SuppressWarnings("unchecked")
+        var list = (List<ItemParamMap>) change.getExtraData();
+        
+        for (var rewards : list) {
+            var templates = ItemTpls.newInstance();
+            rewards.toItemTemplateStream().forEach(templates::addItems);
+            rsp.addRewards(templates);
+        }
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.joint_drill_sweep_succeed_ack, rsp);
+    }
+
+}