Player serialization

src/Player.ts

@@ -1,9 +1,30 @@
-import Hand from './Hand';
+import Hand, { HandJsonInterface } from './Hand';
 import Card from './Card';
 
+interface PlayerJsonInterface {
+    hand: HandJsonInterface,
+}
+
 export default class Player {
     private hand: Hand;
 
+    public static fromJSON(json: PlayerJsonInterface | string): Player {
+        if (typeof json === 'string') {
+            return JSON.parse(json, Player.reviver); 
+        }
+        return new this(Hand.fromJSON(json.hand));
+    }
+
+    public static reviver(key: string, value: PlayerJsonInterface): Player | PlayerJsonInterface {
+        return key === '' ? this.fromJSON(value) : value;
+    }
+
+    public toJSON(): PlayerJsonInterface {
+        return {
+            hand: this.hand.toJSON(),
+        };
+    }
+
     public constructor(hand: Hand) {
         this.hand = hand;
     }