Implement resident shop

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

@@ -0,0 +1,31 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.Public.ResidentShop;
+import emu.nebula.proto.ResidentShopGet.ResidentShopGetResp;
+import emu.nebula.net.HandlerId;
+import emu.nebula.data.GameData;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.resident_shop_get_req)
+public class HandlerResidentShopGetReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Build response
+        var rsp = ResidentShopGetResp.newInstance();
+        
+        for (var data : GameData.getResidentShopDataTable()) {
+            var proto = ResidentShop.newInstance()
+                    .setId(data.getId())
+                    .setRefreshTime(Long.MAX_VALUE);
+            
+            rsp.addShops(proto);
+        }
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.resident_shop_get_succeed_ack, rsp);
+    }
+
+}

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

@@ -0,0 +1,46 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.ResidentShopPurchase.ResidentShopPurchaseReq;
+import emu.nebula.proto.ResidentShopPurchase.ResidentShopPurchaseResp;
+import emu.nebula.net.HandlerId;
+import emu.nebula.data.GameData;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.resident_shop_purchase_req)
+public class HandlerResidentShopPurchaseReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = ResidentShopPurchaseReq.parseFrom(message);
+        
+        // Get goods
+        var data = GameData.getResidentGoodsDataTable().get(req.getGoodsId());
+        if (data == null) {
+            return session.encodeMsg(NetMsgId.resident_shop_purchase_failed_ack);
+        }
+        
+        // Buy
+        var change = session.getPlayer().getInventory().buyItem(
+                data.getCurrencyItemId(),
+                data.getPrice(),
+                data.getProducts(),
+                req.getNumber()
+        );
+        
+        // Build response
+        var rsp = ResidentShopPurchaseResp.newInstance()
+                .setChange(change.toProto())
+                .setPurchasedNumber(0); // Prevent avaliable item count from decreasing
+        
+        rsp.getMutableShop()
+            .setId(data.getShopId())
+            .setRefreshTime(Long.MAX_VALUE);
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.resident_shop_purchase_succeed_ack, rsp);
+    }
+
+}