sudoku leader board fixed

server/models/SudokuRecord.ts

@@ -7,6 +7,7 @@ export interface ISudokuRecord extends Document {
   username: string;
   fullname: string;
   difficulty: SudokuDifficulty;
+  gameMode: 'standard' | 'irregular';
   timeSeconds: number;
   won: boolean;
   createdAt: Date;
@@ -17,6 +18,7 @@ export interface ISudokuLeaderboardRecord {
   userId: mongoose.Types.ObjectId;
   username: string;
   fullname: string;
+  gameMode: 'standard' | 'irregular';
   bestTime: number;
   totalGames: number;
   wonGames: number;
@@ -43,6 +45,12 @@ const sudokuRecordSchema = new Schema<ISudokuRecord>({
     enum: ['easy', 'medium', 'hard'],
     required: true
   },
+  gameMode: {
+    type: String,
+    enum: ['standard', 'irregular'],
+    required: true,
+    default: 'standard'
+  },
   timeSeconds: {
     type: Number,
     required: true,
@@ -56,25 +64,41 @@ const sudokuRecordSchema = new Schema<ISudokuRecord>({
   timestamps: true
 });
 
-sudokuRecordSchema.index({ userId: 1, difficulty: 1 });
-sudokuRecordSchema.index({ difficulty: 1, won: 1, timeSeconds: 1 });
+sudokuRecordSchema.index({ userId: 1, difficulty: 1, gameMode: 1 });
+sudokuRecordSchema.index({ difficulty: 1, won: 1, gameMode: 1, timeSeconds: 1 });
 
 sudokuRecordSchema.statics.getLeaderboard = function(
   difficulty: SudokuDifficulty,
+  gameMode: 'standard' | 'irregular' | 'all',
   skipCount: number,
   pageSize: number
 ): mongoose.Aggregate<ISudokuLeaderboardRecord[]> {
+  const match: any = {
+    difficulty
+  };
+
+  if (gameMode === 'standard') {
+    match.$or = [
+      { gameMode: 'standard' },
+      { gameMode: { $exists: false } }
+    ];
+  } else if (gameMode === 'irregular') {
+    match.gameMode = 'irregular';
+  }
+
   return this.aggregate([
     {
-      $match: {
-        difficulty
-      }
+      $match: match
     },
     {
       $group: {
-        _id: '$userId',
+        _id: {
+          userId: '$userId',
+          gameMode: { $ifNull: ['$gameMode', 'standard'] }
+        },
         username: { $first: '$username' },
         fullname: { $first: '$fullname' },
+        gameMode: { $first: { $ifNull: ['$gameMode', 'standard'] } },
         bestTime: {
           $min: {
             $cond: [{ $eq: ['$won', true] }, '$timeSeconds', null]
@@ -92,7 +116,7 @@ sudokuRecordSchema.statics.getLeaderboard = function(
     },
     {
       $addFields: {
-        userId: '$_id',
+        userId: '$_id.userId',
         winRate: {
           $multiply: [
             { $cond: [{ $eq: ['$totalGames', 0] }, 0, { $divide: ['$wonGames', '$totalGames'] }] },