UI updated

2025-11-28 20:09:15 +05:30
parent f1f40f5799
commit 840d7701ca
1 changed files with 160 additions and 127 deletions
--- a/README.md
+++ b/README.md
@@ -12,14 +12,16 @@

 ## **1. Objective**

-Design and implement a lightweight, scalable, server-authoritative multiplayer game system using **Nakama + Go plugins**, supporting authentication, matchmaking, authoritative gameplay, and leaderboards — deployable to Google Cloud for demonstration.
+Design and implement a lightweight, scalable, server-authoritative multiplayer game system using **Nakama + Go plugins
+**, supporting authentication, matchmaking, authoritative gameplay, leaderboards, and a functional UI — deployable to
+Google Cloud for demonstration.

 ---

 ## **2. Current Completion Summary**

 | Requirement                                  | Status                   |
-| -------------------------------------------- | --------------------------------- |
+|----------------------------------------------|--------------------------|
 | Install Nakama + PostgreSQL                  | ✅ Completed              |
 | Custom Go server plugins                     | ✅ Completed              |
 | Server-authoritative Tic-Tac-Toe             | ✅ Completed              |
@@ -27,13 +29,14 @@ Design and implement a lightweight, scalable, server-authoritative multiplayer g
 | Device-based authentication                  | ✅ Completed              |
 | JWT-based session management                 | ✅ Completed              |
 | Match creation & joining                     | ✅ Completed              |
-| **Matchmaking queue support**                | 🟡 **In Progress** (Go side done) |
-| **Game state validation & turn enforcement** | ✅ Completed (Go authoritative)    |
-| **Leaderboard/tracking foundation**          | 🟡 **In Progress** (Go side done) |
-| UI Game Client                               | 🟡 Not Started                    |
+| **Matchmaking queue support**                | ✅ Completed              |
+| **Game state validation & turn enforcement** | ✅ Completed              |
+| **Leaderboard system**                       | ✅ Completed              |
+| **UI Game Client**                           | 🟡 Partially Implemented |
 | Google Cloud deployment                      | 🟡 Not Started           |

-✅ **Major backend upgrade delivered — authoritative matchmaking and leaderboard logic implemented in Go**
+✅ **Backend is fully authoritative and complete**
+🟡 **UI functional but missing polish, UX, and failure handling**

 ---

@@ -41,175 +44,188 @@ Design and implement a lightweight, scalable, server-authoritative multiplayer g

 * **Backend Framework:** Nakama 3.x
 * **Business Logic:** Custom Go runtime module
+* **Frontend:** React + Vite + Nakama JS
 * **Database:** PostgreSQL 14
 * **Transport:** WebSockets (real-time)
 * **Authentication:** Device-ID based auth → JWT session returned
-* **State Management:** Server-authoritative, deterministic
-* **Protocol:** Nakama RT JSON envelopes
+* **State Management:** Fully server-authoritative
 * **Build & Deployment:** Docker-based

 ---

 ## **4. Authentication**

-Implemented **Nakama device authentication flow**:
+### Backend

-1. Client provides device UUID
-2. Nakama validates & creates account if needed
-3. Server responds with **JWT session token**
-4. Client uses JWT for all WebSocket connections
+* Device authentication, auto-account creation
+* JWT returned and used for RT connections
+
+### UI
+
+* Generates a device UUID and authenticates via `client.authenticateDevice()`
+* Stores and manages session state in React context

 ---

 ## **5. Game Server Logic (Go)**

-The authoritative match module was enhanced significantly:
+Significant enhancements made:

-### **New Features Added:**
+### **✔ Initial State Broadcast**

-#### **✔ Initial State Broadcast on Match Join**
+* When the second player joins, the server immediately sends the full authoritative state.

-The server now broadcasts the **initial game state immediately when both players join**, eliminating race conditions.
+### **✔ Complete Turn + Move Validation**

-#### **✔ Forfeit Handling**
+Rejects:

-If a player disconnects or leaves:
+* out-of-bounds moves
+* occupied cells
+* wrong player's turn
+* invalid payloads

-* Match is marked as `forfeit`
-* Final state broadcast to the remaining player
+### **✔ Forfeit Handling**

-#### **✔ Stronger Validation & Logging**
+* When a user disconnects or leaves, match ends in `forfeit`
+* Final state broadcast to remaining player

-New server-side checks include:
+### **✔ Authoritative State Updates**

-* Turn validation
-* Out-of-bounds move rejection
-* Occupied cell rejection
-* Player not part of the match
-* Invalid payloads
+* Only broadcasts when state actually changes
+* Robust structured logging

-All validations produce detailed log output for troubleshooting.
-
-### **Result:**
-
-The entire gameplay lifecycle is now **fully enforced and validated server-side**, eliminating all trust on the client.
+Result:
+**Absolute server authority, zero trust in client.**

 ---

 ## **6. Real-Time Networking**

-Clients communicate via:
+Communication validated end-to-end:

 * `match_create`
 * `match_join`
-* `match_data_send` (OpCode 1) → moves
-* Server broadcast state (OpCode 2)
+* `matchmaker_add` / `matchmaker_matched`
+* `match_data_send` for moves (OpCode 1)
+* Server broadcasts state (OpCode 2)

-Validated with Python WebSocket simulation:
+Python simulators and UI both confirm:

-* Move sequencing
-* State broadcast
-* Disconnect handling
-* Multi-game scenarios
+* move ordering
+* correct enforcement of turn rules
+* correct state sync
+* stable WebSocket behavior

 ---

-## **7. Matchmaking (Go Plugin) — NEW**
+## **7. Matchmaking System (Go + UI)**

-Matchmaking is now **implemented in Go** via Nakama's `MatchmakerMatched` hook.
+### **Backend (Go)**

-### **✔ Mode-Validated Matchmaking**
+* Implements `MatchmakerMatched` hook
+* Ensures both players:

-The server ensures:
+    * have valid `mode`
+    * match modes
+    * exactly two players
+* Creates authoritative matches server-side
+* RPC `leave_matchmaking` added

-* Exactly two players
-* Both provided a valid game mode (`classic` or `blitz`)
-* Modes match before pairing
+### **UI**

-### **✔ Server-Created Matches**
+* Integrates matchmaking: mode selection → queue → ticket → matched → auto-join
+* Uses Nakama JS `socket.addMatchmaker()`

-If valid, the Go module creates authoritative matches:
-
-```go
-nk.MatchCreate(ctx, "tictactoe", matchParams)
-```
-
-### **✔ RPC for Leaving Matchmaking**
-
-A new RPC `leave_matchmaking`:
-
-* Validates JSON
-* Logs removal
-
-**Client UX improvements and queue removal logic are planned.**
+**Status:** Fully functional end-to-end

 ---

-## **8. Leaderboard System (Go) — NEW**
+## **8. Leaderboard System (Go + UI)**

-Leaderboard integration is now implemented server-side.
+### **Backend (Go)**

-### **✔ Auto Leaderboard Creation (On Module Init)**
+* Leaderboard auto-created on startup
+* On win:

-```go
-nk.LeaderboardCreate("tictactoe", true, "desc", "incr", "", metadata)
-```
+    * winner identified
+    * username resolved
+    * score incremented (+1 win)
+    * metadata logged

-### **✔ Automatic Win Tracking**
+### **UI**

-On game conclusion:
+* Implements leaderboard view using `client.listLeaderboardRecords()`
+* Read-only UI display works

-1. Winner is determined from the board
-2. Username resolved via `AccountGetId`
-3. Score +1 written to the leaderboard
-4. Metadata `{result: "win"}` stored
+### **Remaining**

-This enables:
-
-* Win counts
-* Ranking
-* Long-term player results
+* UI sorting, layout, styling
+* No leaderboard write actions needed from UI

 ---

-## **9. Testing & Validation**
+## **9. UI Implementation Status (React + Vite)**

-The Go-side implementation now supports extended scenario testing including:
+### **What Is Implemented**

-* Happy path games
-* Win/draw scenarios
-* Illegal moves
-* Mid-game disconnects
-* Forfeits
-* Random playthroughs
+- ✔ Authentication flow (device auth)
+- ✔ WebSocket session handling
+- ✔ Matchmaking (classic/blitz modes)
+- ✔ Automatic match join
+- ✔ Move sending (OpCode 1)
+- ✔ State updates (OpCode 2)
+- ✔ Board rendering and interactive cells
+- ✔ End-of-game messaging
+- ✔ Leaderboard display

-Stress testing with matchmaking simulation is available.
+### **Partially Implemented**
+
+- 🟡 Match mode UI selection wired but not visually emphasized
+- 🟡 Context handles all RT states but missing error handling
+
+### **Not Implemented / Missing**
+
+- 🔴 Reconnect flow (UI does not recover session after WS drop)
+- 🔴 No error UI for: matchmaking failure, move rejection, disconnects
+- 🔴 No UI for leaving match or returning to lobby
+- 🔴 No rematch button / flow
+- 🔴 No transitions, animations, or mobile layout
+- 🔴 No global app shell (Routing, Home Screen, etc.)
+
+**Summary:** UI is *functional* and capable of playing full authoritative games, but lacks UX polish and failure
+handling.

 ---

-## **10. UI Status**
+## **10. Testing & Validation**

-Not implemented yet — intentionally deferred.
+### Backend

-Planned:
+* Extensive scenario tests: draws, wins, illegal moves, disconnects
+* Matchmaking simulation across N clients

-* Simple browser/mobile client
-* WebSocket integration
-* Game board rendering
-* Leaderboard display
+### UI

-Estimated time: **6–10 hours**
+* Verified:
+
+    * matchmaking
+    * game correctness
+    * leaderboard retrieval
+    * state sync
+* Missing:
+
+    * stress testing
+    * reconnection scenarios
+    * mobile layout testing

 ---

 ## **11. Google Cloud Deployment**

-Goal: **Simple, affordable, demo-ready deployment**
-
-### Planned architecture:
+Planned architecture remains:

 | Component     | GCP Service                   |
-| ------------- | ----------------------------- |
+|---------------|-------------------------------|
 | Nakama server | Compute Engine VM (Docker)    |
 | PostgreSQL    | Cloud SQL (shared tier)       |
 | Game UI       | Cloud Run or Firebase Hosting |
@@ -223,32 +239,49 @@ Estimated setup time: **6–8 hours**
 ## **12. Risks & Considerations**

 | Risk                           | Mitigation                     |
-| ------------------------------- | -------------------------------- |
-| No UI yet                       | Prioritized next                 |
-| Stress testing incomplete       | Will be run after UI integration |
-| Final matchmaking polish needed | Go foundation already complete   |
-| Leaderboard client UI pending   | Backend implementation complete  |
+|--------------------------------|--------------------------------|
+| UI lacks error/reconnect logic | Add retry + reconnection flows |
+| No rematch or lobby UX         | Add match lifecycle UI         |
+| No mobile layout               | Add responsive CSS             |
+| Cloud deployment pending       | Prioritize after UI polish     |
+| Matchmaking UX is minimal      | Add feedback, loading states   |

-No major backend risks remain.
+None of these affect core backend stability.

 ---

 ## **13. Next Steps**

-1. Implement browser/mobile UI
-2. Integrate matchmaking & leaderboard endpoints into UI
-3. Perform stress + edge case testing
-4. Deploy to Google Cloud
-5. Prepare demo video + documentation
+### **UI Tasks**

-Estimated remaining effort: **1.5–2.5 days**
+1. Add reconnect + error-handling UI
+2. Create lobby → gameplay → results, flow
+3. Add rematch capability
+4. Add responsive + polished UI
+5. Add loading indicators & animations
+
+Estimated remaining effort: **6 to 8 hours**

 ---

 ## **Executive Summary**

-The backend has undergone a major upgrade: matchmaking logic and leaderboard management are now fully implemented in Go, making the server authoritative across the entire gameplay lifecycle.
+### Issues faced
+Several unexpected integration challenges during UI setup contributed to the additional day of work. These included:
+- Aligning the UI’s matchmaking flow with the new authoritative Go-based matchmaking logic.
+- Handling Nakama JS WebSocket behaviors, especially around session timing, matchmaker ticket handling, and match join events.
+- Ensuring OpCode handling and server-produced state updates matched the server’s authoritative model.
+- Resolving environment-related issues (Vite dev server, Node version mismatches, and WebSocket URL configuration).
+- Debugging cross-origin and connection-reset issues during early WebSocket initialization.

-All core systems — authentication, state management, gameplay logic, and matchmaking — are now functional and validated. Only UI and deployment tasks remain, both low-risk and well-scoped.
+These challenges required deeper synchronization between the backend and frontend layers, resulting in an additional **+1 day** of engineering time.

-**The system is production-grade on the backend and ready for frontend integration and final deployment.**
+### Project Progress
+The system now features a fully authoritative backend with matchmaking, gameplay logic, and leaderboards implemented
+completely in Go. The UI is functional and integrates correctly with all backend systems, supporting end-to-end
+matchmaking and gameplay.
+
+Key remaining work involves UI polish, recovery/error handling, and deployment setup. No major architectural risks
+remain.
+
+**The project is now fully playable, technically solid, and ready for final UI enhancements and cloud deployment.**