[ongeki,api] support ongeki rival

src/test/java/icu/samnyan/aqua/util/CardHelper.java

@@ -3,15 +3,30 @@ package icu.samnyan.aqua.util;
 import icu.samnyan.aqua.sega.general.model.Card;
 
 import java.time.LocalDateTime;
+import java.util.Random;
 
 /**
  * @author sam_nya (privateamusement@protonmail.com)
  */
 public class CardHelper {
+    private static Random rand = new Random();
 
     public static Card getCard() {
         var now = LocalDateTime.now();
         return new Card(1L, 114514L, "01145141919810000000", now, now);
     }
 
+    public static Card getRandomCard() {
+        var now = LocalDateTime.now();
+
+        var luid = "";
+        for (int i = 0; i < "01145141919810028570".length(); i++)
+            luid += rand.nextInt(10);
+
+        var extId = 0L;
+        for (int i = 0; i < "114514".length(); i++)
+            extId = extId * 10 + rand.nextInt(10);
+
+        return new Card(0, extId, luid, now, now);
+    }
 }