[entertainment] use thread safe random, update /roll number range

modules/Entertainment/Handler/Roll.cs

@@ -2,18 +2,21 @@
 using BotFramework.Enums;
 using System.Threading.Tasks;
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using Kruzya.TelegramBot.Core;
 using Kruzya.TelegramBot.Core.Data;
 using Kruzya.TelegramBot.Core.Extensions;
 using Kruzya.TelegramBot.Core.Service;
 using Microsoft.Extensions.Logging;
+using Telegram.Bot;
 
 namespace West.Entertainment.Handler;
 
 public class Roll : CommonHandler
 {
     private readonly ILogger<Roll> _logger;
+    private readonly ThreadSafeRandom _rng;
     private readonly IReputation _reputation;
     private readonly UserService _userService;
 
@@ -36,7 +39,7 @@ public class Roll : CommonHandler
             return;
         }
 
-        var newRep = new Random().Next(-50, 50);
+        var newRep = _rng.Next(-20, 80);
 
         await Reply($"Вы получили {newRep} кармы.");
         await _reputation.IncrementReputationAsync(Chat, From, newRep);
@@ -81,10 +84,43 @@ public class Roll : CommonHandler
         await Reply($"Кулдаун /roll сброшен для чата \"{Chat.Title}\".");
     }
 
-    public Roll(CoreContext db, IReputation reputation, UserService userService, ILogger<Roll> logger) : base(db)
+    [ParametrizedCommand(InChat.Public, "rng_test", CommandParseMode.Both)]
+    public async Task HandleRngTest(int minValue, int maxValue)
+    {
+        if (!_userService.IsUserSuper(From))
+        {
+            _logger.LogWarning("{User} attempted to use super-user command /rng_test in {Chat}",
+                From.ToLog(),
+                Chat.ToLog()
+            );
+            return;
+        }
+
+        var positive = 0;
+        var negative = 0;
+
+        for (var i = 0; i < 100; i++)
+        {
+            var number = _rng.Next(minValue, maxValue);
+
+            if (number > 0)
+            {
+                positive++;
+            }
+            else
+            {
+                negative++;
+            }
+        }
+
+        await Bot.SendTextMessageAsync(Chat, $"Positive: {positive}.\nNegative: {negative}");
+    }
+
+    public Roll(CoreContext db, IReputation reputation, UserService userService, ILogger<Roll> logger, ThreadSafeRandom rng) : base(db)
     {
         _reputation = reputation;
         _userService = userService;
         _logger = logger;
+        _rng = rng;
     }
 }