From 0c01875e4809c80d4be6465b3fc690c4fc35cedb Mon Sep 17 00:00:00 2001
From: Sergey Karmanov <ppoocpel8888@gmail.com>
Date: Sat, 26 Aug 2023 13:55:24 +0300
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=B8=D0=BB=20?=
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---
 FichaBackend/Services/IPublicDataService.cs |  4 +++-
 FichaBackend/Utils/Extensions.cs            | 14 ++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 FichaBackend/Utils/Extensions.cs

diff --git a/FichaBackend/Services/IPublicDataService.cs b/FichaBackend/Services/IPublicDataService.cs
index 6707035..62469d0 100644
--- a/FichaBackend/Services/IPublicDataService.cs
+++ b/FichaBackend/Services/IPublicDataService.cs
@@ -56,7 +56,9 @@ public class PublicDataService : IPublicDataService
 
     public async Task<IEnumerable<CardQuestion>> GetAllCards()
     {
-        return await _databaseContext.CardQuestions.ToListAsync();
+        var r = await _databaseContext.CardQuestions.ToListAsync();
+        Utils.Extensions.Shuffle(r);
+        return r;
     }
 
     public async Task UpdateFilmsInCity(IEnumerable<FilmDto> films)
diff --git a/FichaBackend/Utils/Extensions.cs b/FichaBackend/Utils/Extensions.cs
new file mode 100644
index 0000000..de8b990
--- /dev/null
+++ b/FichaBackend/Utils/Extensions.cs
@@ -0,0 +1,14 @@
+namespace FichaBackend.Utils;
+
+public static class Extensions
+{
+    private static readonly Random Rand = new Random();
+ 
+    public static void Shuffle<T>(this IList<T> values)
+    {
+        for (int i = values.Count - 1; i > 0; i--) {
+            int k = Rand.Next(i + 1);
+            (values[k], values[i]) = (values[i], values[k]);
+        }
+    }
+}
\ No newline at end of file