feat: Implement core multiplayer features including user authentication, profile management, lobby, game mode managers, and leaderboard.

server/nakama/tekton_admin.ts

@@ -29,6 +29,9 @@ function InitModule(
     // User management RPCs
     initializer.registerRpc("get_user_profile", rpcGetUserProfile);
     initializer.registerRpc("update_user_profile", rpcUpdateUserProfile);
+    
+    // Leaderboard RPCs
+    initializer.registerRpc("get_leaderboard_stats", rpcGetLeaderboardStats);
 
     logger.info("Tekton admin module loaded");
 }
@@ -538,6 +541,62 @@ function rpcUpdateUserProfile(
     }
 }
 
+// =============================================================================
+// Leaderboard RPCs
+// =============================================================================
+
+function rpcGetLeaderboardStats(
+    ctx: nkruntime.Context,
+    logger: nkruntime.Logger,
+    nk: nkruntime.Nakama,
+    payload: string
+): string {
+    try {
+        // Query the "stats" collection to get all user stats
+        // Warning: For a large production game this should be indexed using Nakama's actual Leaderboard system, 
+        // but this works for listing all users' custom storage stats.
+        const limit = 100;
+        const result = nk.storageList(null, "stats", limit, "");
+        
+        const statsObjects = result.objects || [];
+        const leaderboardData: any[] = [];
+        
+        for (const obj of statsObjects) {
+            try {
+                const stats = JSON.parse(obj.value);
+                const userId = obj.userId;
+                
+                // Get the user's profile to retrieve their display name
+                let displayName = "Unknown";
+                let avatarUrl = "";
+                try {
+                    const account = nk.accountGetId(userId);
+                    displayName = account.user.displayName || account.user.username;
+                    avatarUrl = account.user.avatarUrl;
+                } catch (e) {
+                    // Ignore if account fetch fails
+                }
+                
+                leaderboardData.push({
+                    user_id: userId,
+                    display_name: displayName,
+                    avatar_url: avatarUrl,
+                    games_played: stats.games_played || 0,
+                    games_won: stats.games_won || 0,
+                    high_score: stats.high_score || 0
+                });
+            } catch (e) {
+                logger.error(`Error parsing stats for object: ${obj.key}`);
+            }
+        }
+        
+        return JSON.stringify({ leaderboard: leaderboardData });
+    } catch (e) {
+        logger.error(`Failed to get leaderboard stats: ${e}`);
+        throw new Error("Failed to get leaderboard stats");
+    }
+}
+
 // Before login hook to check ban status
 function beforeAuthenticateEmail(
     ctx: nkruntime.Context,