More common refactorings like renaming variables, removing empty statements and unused variables, etc

src/NadekoBot.Tests/IndexedCollectionTests.cs

@@ -62,7 +62,10 @@ namespace NadekoBot.Tests
             collection.Clear();
 
             Assert.IsTrue(collection.Count == 0, "Collection has not been cleared.");
-            Assert.Throws<ArgumentOutOfRangeException>(() => collection.Contains(collection[0]), "Collection has not been cleared.");
+            Assert.Throws<ArgumentOutOfRangeException>(() =>
+            {
+                _ = collection[0];
+            }, "Collection has not been cleared.");
         }
 
         [Test]

src/NadekoBot/Common/Yml/CommentGatheringTypeInspector.cs

@@ -10,7 +10,7 @@ public class CommentGatheringTypeInspector : TypeInspectorSkeleton
     private readonly ITypeInspector _innerTypeDescriptor;
 
     public CommentGatheringTypeInspector(ITypeInspector innerTypeDescriptor)
-        => this._innerTypeDescriptor = innerTypeDescriptor ?? throw new ArgumentNullException("innerTypeDescriptor");
+        => _innerTypeDescriptor = innerTypeDescriptor ?? throw new ArgumentNullException("innerTypeDescriptor");
 
     public override IEnumerable<IPropertyDescriptor> GetProperties(Type type, object container)
         => _innerTypeDescriptor.GetProperties(type, container).Select(d => new CommentsPropertyDescriptor(d));
@@ -43,7 +43,7 @@ public class CommentGatheringTypeInspector : TypeInspectorSkeleton
 
         public CommentsPropertyDescriptor(IPropertyDescriptor baseDescriptor)
         {
-            this._baseDescriptor = baseDescriptor;
+            _baseDescriptor = baseDescriptor;
             Name = baseDescriptor.Name;
         }
 

src/NadekoBot/Common/Yml/CommentsObjectDescriptor.cs

@@ -24,7 +24,7 @@ public sealed class CommentsObjectDescriptor : IObjectDescriptor
 
     public CommentsObjectDescriptor(IObjectDescriptor innerDescriptor, string comment)
     {
-        this._innerDescriptor = innerDescriptor;
+        _innerDescriptor = innerDescriptor;
         Comment = comment;
     }
 }

src/NadekoBot/Db/Extensions/QuoteExtensions.cs

@@ -9,7 +9,7 @@ public static class QuoteExtensions
     public static IEnumerable<Quote> GetForGuild(this DbSet<Quote> quotes, ulong guildId)
         => quotes.AsQueryable().Where(x => x.GuildId == guildId);
 
-    public static IEnumerable<Quote> GetGroup(
+    public static IReadOnlyCollection<Quote> GetGroup(
         this DbSet<Quote> quotes,
         ulong guildId,
         int page,

src/NadekoBot/Modules/Administration/UserPunish/UserPunishService.cs

@@ -361,7 +361,7 @@ WHERE GuildId={guildId}
                   .ToArray();
     }
 
-    public (IEnumerable<(string Original, ulong? Id, string Reason)> Bans, int Missing) MassKill(
+    public (IReadOnlyCollection<(string Original, ulong? Id, string Reason)> Bans, int Missing) MassKill(
         SocketGuild guild,
         string people)
     {

src/NadekoBot/Modules/Gambling/AnimalRacing/AnimalRacingCommands.cs

@@ -36,7 +36,7 @@ public partial class Gambling
         [NadekoOptionsAttribute(typeof(RaceOptions))]
         public partial Task Race(params string[] args)
         {
-            var (options, success) = OptionsParser.ParseFrom(new RaceOptions(), args);
+            var (options, _) = OptionsParser.ParseFrom(new RaceOptions(), args);
 
             var ar = new AnimalRace(options, _cs, _gamesConf.Data.RaceAnimals.Shuffle());
             if (!_service.AnimalRaces.TryAdd(ctx.Guild.Id, ar))
@@ -46,7 +46,7 @@ public partial class Gambling
 
             var count = 0;
 
-            Task _client_MessageReceived(SocketMessage arg)
+            Task ClientMessageReceived(SocketMessage arg)
             {
                 _= Task.Run(() =>
                 {
@@ -61,9 +61,9 @@ public partial class Gambling
                 return Task.CompletedTask;
             }
 
-            Task Ar_OnEnded(AnimalRace race)
+            Task ArOnEnded(AnimalRace race)
             {
-                _client.MessageReceived -= _client_MessageReceived;
+                _client.MessageReceived -= ClientMessageReceived;
                 _service.AnimalRaces.TryRemove(ctx.Guild.Id, out _);
                 var winner = race.FinishedUsers[0];
                 if (race.FinishedUsers[0].Bet > 0)
@@ -77,9 +77,9 @@ public partial class Gambling
 
             ar.OnStartingFailed += Ar_OnStartingFailed;
             ar.OnStateUpdate += Ar_OnStateUpdate;
-            ar.OnEnded += Ar_OnEnded;
+            ar.OnEnded += ArOnEnded;
             ar.OnStarted += Ar_OnStarted;
-            _client.MessageReceived += _client_MessageReceived;
+            _client.MessageReceived += ClientMessageReceived;
 
             return SendConfirmAsync(GetText(strs.animal_race),
                 GetText(strs.animal_race_starting(options.StartTime)),

src/NadekoBot/Modules/Gambling/BlackJack/BlackJackCommands.cs

@@ -34,7 +34,7 @@ public partial class Gambling
             if (!await CheckBetMandatory(amount))
                 return;
 
-            var newBj = new Blackjack(_cs, _db);
+            var newBj = new Blackjack(_cs);
             Blackjack bj;
             if (newBj == (bj = _service.Games.GetOrAdd(ctx.Channel.Id, newBj)))
             {

src/NadekoBot/Modules/Gambling/BlackJack/Blackjack.cs

@@ -21,16 +21,14 @@ public class Blackjack
     public GameState State { get; set; } = GameState.Starting;
     public User CurrentUser { get; private set; }
 
-    private TaskCompletionSource<bool> _currentUserMove;
+    private TaskCompletionSource<bool> currentUserMove;
     private readonly ICurrencyService _cs;
-    private readonly DbService _db;
 
     private readonly SemaphoreSlim _locker = new(1, 1);
 
-    public Blackjack(ICurrencyService cs, DbService db)
+    public Blackjack(ICurrencyService cs)
     {
         _cs = cs;
-        _db = db;
         Dealer = new();
     }
 
@@ -58,7 +56,7 @@ public class Blackjack
             if (!Players.Any())
             {
                 State = GameState.Ended;
-                var end = GameEnded?.Invoke(this);
+                _ = GameEnded?.Invoke(this);
                 return;
             }
 
@@ -101,14 +99,14 @@ public class Blackjack
     {
         var pause = Task.Delay(20000); //10 seconds to decide
         CurrentUser = usr;
-        _currentUserMove = new();
+        currentUserMove = new();
         await PrintState();
         // either wait for the user to make an action and
         // if he doesn't - stand
-        var finished = await Task.WhenAny(pause, _currentUserMove.Task);
+        var finished = await Task.WhenAny(pause, currentUserMove.Task);
         if (finished == pause) await Stand(usr);
         CurrentUser = null;
-        _currentUserMove = null;
+        currentUserMove = null;
     }
 
     public async Task<bool> Join(IUser user, long bet)
@@ -156,7 +154,7 @@ public class Blackjack
                 return false;
 
             u.State = User.UserState.Stand;
-            _currentUserMove.TrySetResult(true);
+            currentUserMove.TrySetResult(true);
             return true;
         }
         finally
@@ -252,7 +250,7 @@ public class Blackjack
             else
                 //with double you just get one card, and then you're done
                 u.State = User.UserState.Stand;
-            _currentUserMove.TrySetResult(true);
+            currentUserMove.TrySetResult(true);
 
             return true;
         }
@@ -292,7 +290,7 @@ public class Blackjack
                 // user busted
                 u.State = User.UserState.Bust;
 
-            _currentUserMove.TrySetResult(true);
+            currentUserMove.TrySetResult(true);
 
             return true;
         }

src/NadekoBot/Modules/Gambling/Connect4/Connect4.cs

@@ -59,7 +59,7 @@ public sealed class Connect4Game : IDisposable
     private readonly ICurrencyService _cs;
     private readonly NadekoRandom _rng;
 
-    private Timer _playerTimeoutTimer;
+    private Timer playerTimeoutTimer;
 
     /* [ ][ ][ ][ ][ ][ ]
      * [ ][ ][ ][ ][ ][ ]
@@ -133,7 +133,7 @@ public sealed class Connect4Game : IDisposable
             }
 
             CurrentPhase = Phase.P1Move; //start the game
-            _playerTimeoutTimer = new(async _ =>
+            playerTimeoutTimer = new(async _ =>
                 {
                     await _locker.WaitAsync();
                     try
@@ -330,7 +330,7 @@ public sealed class Connect4Game : IDisposable
     }
 
     private void ResetTimer()
-        => _playerTimeoutTimer.Change(TimeSpan.FromSeconds(_options.TurnTimer),
+        => playerTimeoutTimer.Change(TimeSpan.FromSeconds(_options.TurnTimer),
             TimeSpan.FromSeconds(_options.TurnTimer));
 
     private void EndGame(Result result, ulong? winId)
@@ -369,7 +369,7 @@ public sealed class Connect4Game : IDisposable
         OnGameFailedToStart = null;
         OnGameStateUpdated = null;
         OnGameEnded = null;
-        _playerTimeoutTimer?.Change(Timeout.Infinite, Timeout.Infinite);
+        playerTimeoutTimer?.Change(Timeout.Infinite, Timeout.Infinite);
     }
 
 

src/NadekoBot/Modules/Gambling/Connect4/Connect4Commands.cs

@@ -11,19 +11,19 @@ public partial class Gambling
     [Group]
     public partial class Connect4Commands : GamblingSubmodule<GamblingService>
     {
-        private static readonly string[] numbers =
+        private static readonly string[] _numbers =
         {
             ":one:", ":two:", ":three:", ":four:", ":five:", ":six:", ":seven:", ":eight:"
         };
 
         private int RepostCounter
         {
-            get => _repostCounter;
+            get => repostCounter;
             set
             {
                 if (value is < 0 or > 7)
-                    _repostCounter = 0;
-                else _repostCounter = value;
+                    repostCounter = 0;
+                else repostCounter = value;
             }
         }
 
@@ -32,7 +32,7 @@ public partial class Gambling
 
         private IUserMessage msg;
 
-        private int _repostCounter;
+        private int repostCounter;
 
         public Connect4Commands(DiscordSocketClient client, ICurrencyService cs, GamblingConfigService gamb)
             : base(gamb)
@@ -59,7 +59,7 @@ public partial class Gambling
 
                 newGame.Dispose();
                 //means game already exists, try to join
-                var joined = await game.Join(ctx.User.Id, ctx.User.ToString(), options.Bet);
+                await game.Join(ctx.User.Id, ctx.User.ToString(), options.Bet);
                 return;
             }
 
@@ -73,9 +73,9 @@ public partial class Gambling
                 }
 
             game.OnGameStateUpdated += Game_OnGameStateUpdated;
-            game.OnGameFailedToStart += Game_OnGameFailedToStart;
-            game.OnGameEnded += Game_OnGameEnded;
-            _client.MessageReceived += _client_MessageReceived;
+            game.OnGameFailedToStart += GameOnGameFailedToStart;
+            game.OnGameEnded += GameOnGameEnded;
+            _client.MessageReceived += ClientMessageReceived;
 
             game.Initialize();
             if (options.Bet == 0)
@@ -83,7 +83,7 @@ public partial class Gambling
             else
                 await ReplyErrorLocalizedAsync(strs.connect4_created_bet(options.Bet + CurrencySign));
 
-            Task _client_MessageReceived(SocketMessage arg)
+            Task ClientMessageReceived(SocketMessage arg)
             {
                 if (ctx.Channel.Id != arg.Channel.Id)
                     return Task.CompletedTask;
@@ -110,22 +110,22 @@ public partial class Gambling
                 return Task.CompletedTask;
             }
 
-            Task Game_OnGameFailedToStart(Connect4Game arg)
+            Task GameOnGameFailedToStart(Connect4Game arg)
             {
                 if (_service.Connect4Games.TryRemove(ctx.Channel.Id, out var toDispose))
                 {
-                    _client.MessageReceived -= _client_MessageReceived;
+                    _client.MessageReceived -= ClientMessageReceived;
                     toDispose.Dispose();
                 }
 
                 return ErrorLocalizedAsync(strs.connect4_failed_to_start);
             }
 
-            Task Game_OnGameEnded(Connect4Game arg, Connect4Game.Result result)
+            Task GameOnGameEnded(Connect4Game arg, Connect4Game.Result result)
             {
                 if (_service.Connect4Games.TryRemove(ctx.Channel.Id, out var toDispose))
                 {
-                    _client.MessageReceived -= _client_MessageReceived;
+                    _client.MessageReceived -= ClientMessageReceived;
                     toDispose.Dispose();
                 }
 
@@ -185,7 +185,7 @@ public partial class Gambling
                 sb.AppendLine();
             }
 
-            for (var i = 0; i < Connect4Game.NUMBER_OF_COLUMNS; i++) sb.Append(numbers[i]);
+            for (var i = 0; i < Connect4Game.NUMBER_OF_COLUMNS; i++) sb.Append(_numbers[i]);
             return sb.ToString();
         }
     }

src/NadekoBot/Modules/Gambling/DiceRoll/DiceRollCommands.cs

@@ -11,10 +11,10 @@ public partial class Gambling
     [Group]
     public partial class DiceRollCommands : NadekoSubmodule
     {
-        private static readonly Regex dndRegex = new(@"^(?<n1>\d+)d(?<n2>\d+)(?:\+(?<add>\d+))?(?:\-(?<sub>\d+))?$",
+        private static readonly Regex _dndRegex = new(@"^(?<n1>\d+)d(?<n2>\d+)(?:\+(?<add>\d+))?(?:\-(?<sub>\d+))?$",
             RegexOptions.Compiled);
 
-        private static readonly Regex fudgeRegex = new(@"^(?<n1>\d+)d(?:F|f)$", RegexOptions.Compiled);
+        private static readonly Regex _fudgeRegex = new(@"^(?<n1>\d+)d(?:F|f)$", RegexOptions.Compiled);
 
         private static readonly char[] _fateRolls = { '-', ' ', '+' };
         private readonly IImageCache _images;
@@ -115,7 +115,7 @@ public partial class Gambling
         private async Task InternallDndRoll(string arg, bool ordered)
         {
             Match match;
-            if ((match = fudgeRegex.Match(arg)).Length != 0
+            if ((match = _fudgeRegex.Match(arg)).Length != 0
                 && int.TryParse(match.Groups["n1"].ToString(), out var n1)
                 && n1 is > 0 and < 500)
             {
@@ -134,7 +134,7 @@ public partial class Gambling
 
                 await ctx.Channel.EmbedAsync(embed);
             }
-            else if ((match = dndRegex.Match(arg)).Length != 0)
+            else if ((match = _dndRegex.Match(arg)).Length != 0)
             {
                 var rng = new NadekoRandom();
                 if (int.TryParse(match.Groups["n1"].ToString(), out n1)

src/NadekoBot/Modules/Gambling/Events/GameStatusEvent.cs

@@ -117,7 +117,7 @@ public class GameStatusEvent : ICurrencyEvent
 
     private async Task OnMessageDeleted(Cacheable<IMessage, ulong> message, Cacheable<IMessageChannel, ulong> cacheable)
     {
-        if (message.Id == this.msg.Id) await StopEvent();
+        if (message.Id == msg.Id) await StopEvent();
     }
 
     public async Task StopEvent()

src/NadekoBot/Modules/Gambling/Events/ReactionEvent.cs

@@ -99,11 +99,11 @@ public class ReactionEvent : ICurrencyEvent
     public async Task StartEvent()
     {
         if (Emote.TryParse(_config.Currency.Sign, out var parsedEmote))
-            this.emote = parsedEmote;
+            emote = parsedEmote;
         else
-            this.emote = new Emoji(_config.Currency.Sign);
+            emote = new Emoji(_config.Currency.Sign);
         msg = await _channel.EmbedAsync(GetEmbed(_opts.PotSize));
-        await msg.AddReactionAsync(this.emote);
+        await msg.AddReactionAsync(emote);
         _client.MessageDeleted += OnMessageDeleted;
         _client.ReactionAdded += HandleReaction;
         _t.Change(TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(2));
@@ -114,7 +114,7 @@ public class ReactionEvent : ICurrencyEvent
 
     private async Task OnMessageDeleted(Cacheable<IMessage, ulong> message, Cacheable<IMessageChannel, ulong> cacheable)
     {
-        if (message.Id == this.msg.Id) await StopEvent();
+        if (message.Id == msg.Id) await StopEvent();
     }
 
     public async Task StopEvent()
@@ -151,7 +151,7 @@ public class ReactionEvent : ICurrencyEvent
             if ((r.User.IsSpecified
                     ? r.User.Value
                     : null) is not IGuildUser gu // no unknown users, as they could be bots, or alts
-                || message.Id != this.msg.Id // same message
+                || message.Id != msg.Id // same message
                 || gu.IsBot // no bots
                 || (DateTime.UtcNow - gu.CreatedAt).TotalDays <= 5 // no recently created accounts
                 || (_noRecentlyJoinedServer

src/NadekoBot/Modules/Gambling/FlipCoin/FlipCoinCommands.cs

@@ -22,7 +22,7 @@ public partial class Gambling
             Tails = 2
         }
 
-        private static readonly NadekoRandom rng = new();
+        private static readonly NadekoRandom _rng = new();
         private readonly IImageCache _images;
         private readonly ICurrencyService _cs;
 
@@ -47,9 +47,9 @@ public partial class Gambling
             var imgs = new Image<Rgba32>[count];
             for (var i = 0; i < count; i++)
             {
-                var headsArr = _images.Heads[rng.Next(0, _images.Heads.Count)];
-                var tailsArr = _images.Tails[rng.Next(0, _images.Tails.Count)];
-                if (rng.Next(0, 10) < 5)
+                var headsArr = _images.Heads[_rng.Next(0, _images.Heads.Count)];
+                var tailsArr = _images.Tails[_rng.Next(0, _images.Tails.Count)];
+                if (_rng.Next(0, 10) < 5)
                 {
                     imgs[i] = Image.Load(headsArr);
                     headCount++;
@@ -90,21 +90,21 @@ public partial class Gambling
             BetFlipGuess result;
             Uri imageToSend;
             var coins = _images.ImageUrls.Coins;
-            if (rng.Next(0, 1000) <= 499)
+            if (_rng.Next(0, 1000) <= 499)
             {
-                imageToSend = coins.Heads[rng.Next(0, coins.Heads.Length)];
+                imageToSend = coins.Heads[_rng.Next(0, coins.Heads.Length)];
                 result = BetFlipGuess.Heads;
             }
             else
             {
-                imageToSend = coins.Tails[rng.Next(0, coins.Tails.Length)];
+                imageToSend = coins.Tails[_rng.Next(0, coins.Tails.Length)];
                 result = BetFlipGuess.Tails;
             }
 
             string str;
             if (guess == result)
             {
-                var toWin = (long)(amount * _config.BetFlip.Multiplier);
+                var toWin = (long)(amount * Config.BetFlip.Multiplier);
                 str = Format.Bold(ctx.User.ToString()) + " " + GetText(strs.flip_guess(toWin + CurrencySign));
                 await _cs.AddAsync(ctx.User, "Betflip Gamble", toWin, false, true);
             }

src/NadekoBot/Modules/Gambling/Gambling.cs

@@ -100,8 +100,8 @@ public partial class Gambling : GamblingModule<GamblingService>
     [Cmd]
     public async partial Task Timely()
     {
-        var val = _config.Timely.Amount;
-        var period = _config.Timely.Cooldown;
+        var val = Config.Timely.Amount;
+        var period = Config.Timely.Cooldown;
         if (val <= 0 || period <= 0)
         {
             await ReplyErrorLocalizedAsync(strs.timely_none);
@@ -473,7 +473,7 @@ public partial class Gambling : GamblingModule<GamblingService>
             return;
         }
 
-        var br = new Betroll(_config.BetRoll);
+        var br = new Betroll(Config.BetRoll);
 
         var result = br.Roll();
 
@@ -617,7 +617,7 @@ public partial class Gambling : GamblingModule<GamblingService>
                  || (pick == RpsPick.Rock && nadekoPick == RpsPick.Scissors)
                  || (pick == RpsPick.Scissors && nadekoPick == RpsPick.Paper))
         {
-            amount = (long)(amount * _config.BetFlip.Multiplier);
+            amount = (long)(amount * Config.BetFlip.Multiplier);
             await _cs.AddAsync(ctx.User.Id, "Rps-win", amount, true);
             embed.WithOkColor();
             embed.AddField(GetText(strs.won), n(amount));

src/NadekoBot/Modules/Gambling/GamblingConfigService.cs

@@ -6,11 +6,12 @@ namespace NadekoBot.Modules.Gambling.Services;
 
 public sealed class GamblingConfigService : ConfigServiceBase<GamblingConfig>
 {
-    private const string FilePath = "data/gambling.yml";
-    private static readonly TypedKey<GamblingConfig> changeKey = new("config.gambling.updated");
-    public override string Name { get; } = "gambling";
+    private const string FILE_PATH = "data/gambling.yml";
+    private static readonly TypedKey<GamblingConfig> _changeKey = new("config.gambling.updated");
+    public override string Name
+        => "gambling";
 
-    private readonly IEnumerable<WaifuItemModel> antiGiftSeed = new[]
+    private readonly IEnumerable<WaifuItemModel> _antiGiftSeed = new[]
     {
         new WaifuItemModel("🥀", 100, "WiltedRose", true), new WaifuItemModel("✂️", 1000, "Haircut", true),
         new WaifuItemModel("🧻", 10000, "ToiletPaper", true)
@@ -18,7 +19,7 @@ public sealed class GamblingConfigService : ConfigServiceBase<GamblingConfig>
 
 
     public GamblingConfigService(IConfigSeria serializer, IPubSub pubSub)
-        : base(FilePath, serializer, pubSub, changeKey)
+        : base(FILE_PATH, serializer, pubSub, _changeKey)
     {
         AddParsedProp("currency.name", gs => gs.Currency.Name, ConfigParsers.String, ConfigPrinters.ToString);
         AddParsedProp("currency.sign", gs => gs.Currency.Sign, ConfigParsers.String, ConfigPrinters.ToString);
@@ -104,7 +105,7 @@ public sealed class GamblingConfigService : ConfigServiceBase<GamblingConfig>
         if (data.Version < 2)
             ModifyConfig(c =>
             {
-                c.Waifu.Items = c.Waifu.Items.Concat(antiGiftSeed).ToList();
+                c.Waifu.Items = c.Waifu.Items.Concat(_antiGiftSeed).ToList();
                 c.Version = 2;
             });
 

src/NadekoBot/Modules/Gambling/GamblingTopLevelModule.cs

@@ -5,14 +5,14 @@ namespace NadekoBot.Modules.Gambling.Common;
 
 public abstract class GamblingModule<TService> : NadekoModule<TService>
 {
-    protected GamblingConfig _config
+    protected GamblingConfig Config
         => _lazyConfig.Value;
 
     protected string CurrencySign
-        => _config.Currency.Sign;
+        => Config.Currency.Sign;
 
     protected string CurrencyName
-        => _config.Currency.Name;
+        => Config.Currency.Name;
 
     private readonly Lazy<GamblingConfig> _lazyConfig;
 
@@ -22,15 +22,15 @@ public abstract class GamblingModule<TService> : NadekoModule<TService>
     private async Task<bool> InternalCheckBet(long amount)
     {
         if (amount < 1) return false;
-        if (amount < _config.MinBet)
+        if (amount < Config.MinBet)
         {
-            await ReplyErrorLocalizedAsync(strs.min_bet_limit(Format.Bold(_config.MinBet.ToString()) + CurrencySign));
+            await ReplyErrorLocalizedAsync(strs.min_bet_limit(Format.Bold(Config.MinBet.ToString()) + CurrencySign));
             return false;
         }
 
-        if (_config.MaxBet > 0 && amount > _config.MaxBet)
+        if (Config.MaxBet > 0 && amount > Config.MaxBet)
         {
-            await ReplyErrorLocalizedAsync(strs.max_bet_limit(Format.Bold(_config.MaxBet.ToString()) + CurrencySign));
+            await ReplyErrorLocalizedAsync(strs.max_bet_limit(Format.Bold(Config.MaxBet.ToString()) + CurrencySign));
             return false;
         }
 

src/NadekoBot/Modules/Gambling/PlantPick/PlantAndPickCommands.cs

@@ -9,11 +9,11 @@ public partial class Gambling
     [Group]
     public partial class PlantPickCommands : GamblingSubmodule<PlantPickService>
     {
-        private readonly ILogCommandService logService;
+        private readonly ILogCommandService _logService;
 
         public PlantPickCommands(ILogCommandService logService, GamblingConfigService gss)
             : base(gss)
-            => this.logService = logService;
+            => this._logService = logService;
 
         [Cmd]
         [RequireContext(ContextType.Guild)]
@@ -32,7 +32,7 @@ public partial class Gambling
             if (((SocketGuild)ctx.Guild).CurrentUser.GuildPermissions.ManageMessages)
                 try
                 {
-                    logService.AddDeleteIgnore(ctx.Message.Id);
+                    _logService.AddDeleteIgnore(ctx.Message.Id);
                     await ctx.Message.DeleteAsync();
                 }
                 catch { }
@@ -49,7 +49,7 @@ public partial class Gambling
 
             if (((SocketGuild)ctx.Guild).CurrentUser.GuildPermissions.ManageMessages)
             {
-                logService.AddDeleteIgnore(ctx.Message.Id);
+                _logService.AddDeleteIgnore(ctx.Message.Id);
                 await ctx.Message.DeleteAsync();
             }
 
@@ -90,7 +90,7 @@ public partial class Gambling
             return ctx.SendPaginatedConfirmAsync(page,
                 _ =>
                 {
-                    var items = enabledIn.Skip(page * 9).Take(9);
+                    var items = enabledIn.Skip(page * 9).Take(9).ToList();
 
                     if (!items.Any())
                         return _eb.Create().WithErrorColor().WithDescription("-");

src/NadekoBot/Modules/Gambling/Shop/ShopCommands.cs

@@ -154,7 +154,7 @@ public partial class Gambling
                 {
                     await using (var uow = _db.GetDbContext())
                     {
-                        var x = uow.Set<ShopEntryItem>().Remove(item);
+                        uow.Set<ShopEntryItem>().Remove(item);
                         uow.SaveChanges();
                     }
 

src/NadekoBot/Modules/Gambling/Slot/SlotCommands.cs

@@ -18,8 +18,8 @@ public partial class Gambling
     [Group]
     public partial class SlotCommands : GamblingSubmodule<GamblingService>
     {
-        private static long _totalBet;
-        private static long _totalPaidOut;
+        private static long totalBet;
+        private static long totalPaidOut;
 
         private static readonly HashSet<ulong> _runningUsers = new();
 
@@ -28,7 +28,7 @@ public partial class Gambling
         //thanks to judge for helping me with this
 
         private readonly IImageCache _images;
-        private FontProvider _fonts;
+        private readonly FontProvider _fonts;
         private readonly DbService _db;
 
         public SlotCommands(
@@ -51,8 +51,8 @@ public partial class Gambling
         public async partial Task SlotStats()
         {
             //i remembered to not be a moron
-            var paid = _totalPaidOut;
-            var bet = _totalBet;
+            var paid = totalPaidOut;
+            var bet = totalBet;
 
             if (bet <= 0)
                 bet = 1;
@@ -120,8 +120,8 @@ public partial class Gambling
                     return;
                 }
 
-                Interlocked.Add(ref _totalBet, amount);
-                Interlocked.Add(ref _totalPaidOut, result.Won);
+                Interlocked.Add(ref totalBet, amount);
+                Interlocked.Add(ref totalPaidOut, result.Won);
 
                 long ownedAmount;
                 await using (var uow = _db.GetDbContext())
@@ -130,12 +130,12 @@ public partial class Gambling
                                   ?? 0;
                 }
 
-                using (var bgImage = Image.Load<Rgba32>(_images.SlotBackground, out var format))
+                using (var bgImage = Image.Load<Rgba32>(_images.SlotBackground, out _))
                 {
                     var numbers = new int[3];
                     result.Rolls.CopyTo(numbers, 0);
 
-                    Color fontColor = _config.Slots.CurrencyFontColor;
+                    Color fontColor = Config.Slots.CurrencyFontColor;
 
                     bgImage.Mutate(x => x.DrawText(new()
                         {

src/NadekoBot/Modules/Gambling/VoteRewardService.cs

@@ -100,7 +100,7 @@ public class VoteRewardService : INService, IReadyExecutor
             }
             catch (Exception ex)
             {
-                Log.Error(ex, "Critical error loading discords.com vote rewards.");
+                Log.Error(ex, "Critical error loading discords.com vote rewards");
             }
         }
     }

src/NadekoBot/Modules/Gambling/Waifus/WaifuClaimCommands.cs

@@ -39,9 +39,9 @@ public partial class Gambling
         [RequireContext(ContextType.Guild)]
         public async partial Task WaifuClaim(int amount, [Leftover] IUser target)
         {
-            if (amount < _config.Waifu.MinPrice)
+            if (amount < Config.Waifu.MinPrice)
             {
-                await ReplyErrorLocalizedAsync(strs.waifu_isnt_cheap(_config.Waifu.MinPrice + CurrencySign));
+                await ReplyErrorLocalizedAsync(strs.waifu_isnt_cheap(Config.Waifu.MinPrice + CurrencySign));
                 return;
             }
 
@@ -278,7 +278,7 @@ public partial class Gambling
         [Priority(1)]
         public async partial Task WaifuGift(int page = 1)
         {
-            if (--page < 0 || page > (_config.Waifu.Items.Count - 1) / 9)
+            if (--page < 0 || page > (Config.Waifu.Items.Count - 1) / 9)
                 return;
 
             var waifuItems = _service.GetWaifuItems();
@@ -294,7 +294,7 @@ public partial class Gambling
                               .ToList()
                               .ForEach(x => embed.AddField(
                                   $"{(!x.Negative ? string.Empty : "\\💔")} {x.ItemEmoji} {x.Name}",
-                                  Format.Bold(x.Price.ToString()) + _config.Currency.Sign,
+                                  Format.Bold(x.Price.ToString()) + Config.Currency.Sign,
                                   true));
 
                     return embed;

src/NadekoBot/Modules/Gambling/Wheel/WheelOfFortuneCommands.cs

@@ -37,7 +37,7 @@ public partial class Gambling
 
             var result = await _service.WheelOfFortuneSpinAsync(ctx.User.Id, amount);
 
-            var wofMultipliers = _config.WheelOfFortune.Multipliers;
+            var wofMultipliers = Config.WheelOfFortune.Multipliers;
             await SendConfirmAsync(Format.Bold($@"{ctx.User.ToString()} won: {result.Amount + CurrencySign}
 
    『{wofMultipliers[1]}』   『{wofMultipliers[0]}』   『{wofMultipliers[7]}』

src/NadekoBot/Modules/Gambling/~Shared/Decks/Deck.cs

@@ -28,7 +28,7 @@ public class Deck
         { 13, "King" }
     };
 
-    private static Dictionary<string, Func<List<Card>, bool>> _handValues;
+    private static Dictionary<string, Func<List<Card>, bool>> handValues;
 
     public List<Card> CardPool { get; set; }
     private readonly Random _r = new NadekoRandom();
@@ -176,7 +176,7 @@ public class Deck
             return HasStraightFlush(cards) && !IsRoyalFlush(cards);
         }
 
-        _handValues = new()
+        handValues = new()
         {
             { "Royal Flush", IsRoyalFlush },
             { "Straight Flush", IsStraightFlush },
@@ -192,9 +192,10 @@ public class Deck
 
     public static string GetHandValue(List<Card> cards)
     {
-        if (_handValues is null)
+        if (handValues is null)
             InitHandValues();
-        foreach (var kvp in _handValues.Where(x => x.Value(cards))) return kvp.Key;
+        
+        foreach (var kvp in handValues.Where(x => x.Value(cards))) return kvp.Key;
         return "High card " + (cards.FirstOrDefault(c => c.Number == 1)?.GetValueText() ?? cards.Max().GetValueText());
     }
 

src/NadekoBot/Modules/Games/Acrophobia/Acrophobia.cs

@@ -38,8 +38,8 @@ public sealed class AcrophobiaGame : IDisposable
     public ImmutableArray<char> StartingLetters { get; private set; }
     public Options Opts { get; }
 
-    private readonly Dictionary<AcrophobiaUser, int> submissions = new();
-    private readonly SemaphoreSlim locker = new(1, 1);
+    private readonly Dictionary<AcrophobiaUser, int> _submissions = new();
+    private readonly SemaphoreSlim _locker = new(1, 1);
     private readonly NadekoRandom _rng;
 
     private readonly HashSet<ulong> _usersWhoVoted = new();
@@ -55,37 +55,37 @@ public sealed class AcrophobiaGame : IDisposable
     {
         await OnStarted(this);
         await Task.Delay(Opts.SubmissionTime * 1000);
-        await locker.WaitAsync();
+        await _locker.WaitAsync();
         try
         {
-            if (submissions.Count == 0)
+            if (_submissions.Count == 0)
             {
                 CurrentPhase = Phase.Ended;
                 await OnVotingStarted(this, ImmutableArray.Create<KeyValuePair<AcrophobiaUser, int>>());
                 return;
             }
 
-            if (submissions.Count == 1)
+            if (_submissions.Count == 1)
             {
                 CurrentPhase = Phase.Ended;
-                await OnVotingStarted(this, submissions.ToArray().ToImmutableArray());
+                await OnVotingStarted(this, _submissions.ToArray().ToImmutableArray());
                 return;
             }
 
             CurrentPhase = Phase.Voting;
 
-            await OnVotingStarted(this, submissions.ToArray().ToImmutableArray());
+            await OnVotingStarted(this, _submissions.ToArray().ToImmutableArray());
         }
-        finally { locker.Release(); }
+        finally { _locker.Release(); }
 
         await Task.Delay(Opts.VoteTime * 1000);
-        await locker.WaitAsync();
+        await _locker.WaitAsync();
         try
         {
             CurrentPhase = Phase.Ended;
-            await OnEnded(this, submissions.ToArray().ToImmutableArray());
+            await OnEnded(this, _submissions.ToArray().ToImmutableArray());
         }
-        finally { locker.Release(); }
+        finally { _locker.Release(); }
     }
 
     private void InitializeStartingLetters()
@@ -107,26 +107,26 @@ public sealed class AcrophobiaGame : IDisposable
     {
         var user = new AcrophobiaUser(userId, userName, input.ToLowerInvariant().ToTitleCase());
 
-        await locker.WaitAsync();
+        await _locker.WaitAsync();
         try
         {
             switch (CurrentPhase)
             {
                 case Phase.Submission:
-                    if (submissions.ContainsKey(user) || !IsValidAnswer(input))
+                    if (_submissions.ContainsKey(user) || !IsValidAnswer(input))
                         break;
 
-                    submissions.Add(user, 0);
+                    _submissions.Add(user, 0);
                     return true;
                 case Phase.Voting:
                     AcrophobiaUser toVoteFor;
                     if (!int.TryParse(input, out var index)
                         || --index < 0
-                        || index >= submissions.Count
-                        || (toVoteFor = submissions.ToArray()[index].Key).UserId == user.UserId
+                        || index >= _submissions.Count
+                        || (toVoteFor = _submissions.ToArray()[index].Key).UserId == user.UserId
                         || !_usersWhoVoted.Add(userId))
                         break;
-                    ++submissions[toVoteFor];
+                    ++_submissions[toVoteFor];
                     _= Task.Run(() => OnUserVoted(userName));
                     return true;
             }
@@ -135,7 +135,7 @@ public sealed class AcrophobiaGame : IDisposable
         }
         finally
         {
-            locker.Release();
+            _locker.Release();
         }
     }
 
@@ -169,8 +169,8 @@ public sealed class AcrophobiaGame : IDisposable
         OnUserVoted = null;
         OnVotingStarted = null;
         _usersWhoVoted.Clear();
-        submissions.Clear();
-        locker.Dispose();
+        _submissions.Clear();
+        _locker.Dispose();
     }
 
     public class Options : INadekoCommandOptions

src/NadekoBot/Modules/Games/Acrophobia/AcropobiaCommands.cs

@@ -31,19 +31,19 @@ public partial class Games
                     game.OnEnded += Game_OnEnded;
                     game.OnVotingStarted += Game_OnVotingStarted;
                     game.OnUserVoted += Game_OnUserVoted;
-                    _client.MessageReceived += _client_MessageReceived;
+                    _client.MessageReceived += ClientMessageReceived;
                     await game.Run();
                 }
                 finally
                 {
-                    _client.MessageReceived -= _client_MessageReceived;
+                    _client.MessageReceived -= ClientMessageReceived;
                     _service.AcrophobiaGames.TryRemove(channel.Id, out game);
-                    game.Dispose();
+                    game?.Dispose();
                 }
             else
                 await ReplyErrorLocalizedAsync(strs.acro_running);
 
-            Task _client_MessageReceived(SocketMessage msg)
+            Task ClientMessageReceived(SocketMessage msg)
             {
                 if (msg.Channel.Id != ctx.Channel.Id)
                     return Task.CompletedTask;

src/NadekoBot/Modules/Games/ChatterBot/ChatterbotService.cs

@@ -48,7 +48,7 @@ public class ChatterBotService : IEarlyBehavior
     {
         if (!string.IsNullOrWhiteSpace(_creds.CleverbotApiKey))
             return new OfficialCleverbotSession(_creds.CleverbotApiKey, _httpFactory);
-        return new CleverbotIOSession("GAh3wUfzDCpDpdpT", "RStKgqn7tcO9blbrv4KbXM8NDlb7H37C", _httpFactory);
+        return new CleverbotIoSession("GAh3wUfzDCpDpdpT", "RStKgqn7tcO9blbrv4KbXM8NDlb7H37C", _httpFactory);
     }
 
     public string PrepareMessage(IUserMessage msg, out IChatterBotSession cleverbot)

src/NadekoBot/Modules/Games/ChatterBot/_Common/CleverbotResponse.cs

@@ -7,13 +7,13 @@ public class CleverbotResponse
     public string Output { get; set; }
 }
 
-public class CleverbotIOCreateResponse
+public class CleverbotIoCreateResponse
 {
     public string Status { get; set; }
     public string Nick { get; set; }
 }
 
-public class CleverbotIOAskResponse
+public class CleverbotIoAskResponse
 {
     public string Status { get; set; }
     public string Response { get; set; }

src/NadekoBot/Modules/Games/ChatterBot/_Common/OfficialCleverbotSession.cs

@@ -10,7 +10,7 @@ public class OfficialCleverbotSession : IChatterBotSession
 
     private readonly string _apiKey;
     private readonly IHttpClientFactory _httpFactory;
-    private string _cs;
+    private string cs;
 
     public OfficialCleverbotSession(string apiKey, IHttpClientFactory factory)
     {
@@ -21,12 +21,12 @@ public class OfficialCleverbotSession : IChatterBotSession
     public async Task<string> Think(string input)
     {
         using var http = _httpFactory.CreateClient();
-        var dataString = await http.GetStringAsync(string.Format(QueryString, input, _cs ?? ""));
+        var dataString = await http.GetStringAsync(string.Format(QueryString, input, cs ?? ""));
         try
         {
             var data = JsonConvert.DeserializeObject<CleverbotResponse>(dataString);
 
-            _cs = data?.Cs;
+            cs = data?.Cs;
             return data?.Output;
         }
         catch
@@ -37,7 +37,7 @@ public class OfficialCleverbotSession : IChatterBotSession
     }
 }
 
-public class CleverbotIOSession : IChatterBotSession
+public class CleverbotIoSession : IChatterBotSession
 {
     private readonly string _key;
     private readonly string _user;
@@ -47,7 +47,7 @@ public class CleverbotIOSession : IChatterBotSession
     private readonly string _createEndpoint = "https://cleverbot.io/1.0/create";
     private readonly string _askEndpoint = "https://cleverbot.io/1.0/ask";
 
-    public CleverbotIOSession(string user, string key, IHttpClientFactory factory)
+    public CleverbotIoSession(string user, string key, IHttpClientFactory factory)
     {
         _key = key;
         _user = user;
@@ -58,14 +58,14 @@ public class CleverbotIOSession : IChatterBotSession
 
     private async Task<string> GetNick()
     {
-        using var _http = _httpFactory.CreateClient();
+        using var http = _httpFactory.CreateClient();
         using var msg = new FormUrlEncodedContent(new[]
         {
             new KeyValuePair<string, string>("user", _user), new KeyValuePair<string, string>("key", _key)
         });
-        using var data = await _http.PostAsync(_createEndpoint, msg);
+        using var data = await http.PostAsync(_createEndpoint, msg);
         var str = await data.Content.ReadAsStringAsync();
-        var obj = JsonConvert.DeserializeObject<CleverbotIOCreateResponse>(str);
+        var obj = JsonConvert.DeserializeObject<CleverbotIoCreateResponse>(str);
         if (obj.Status != "success")
             throw new OperationCanceledException(obj.Status);
 
@@ -74,15 +74,15 @@ public class CleverbotIOSession : IChatterBotSession
 
     public async Task<string> Think(string input)
     {
-        using var _http = _httpFactory.CreateClient();
+        using var http = _httpFactory.CreateClient();
         using var msg = new FormUrlEncodedContent(new[]
         {
             new KeyValuePair<string, string>("user", _user), new KeyValuePair<string, string>("key", _key),
             new KeyValuePair<string, string>("nick", await _nick), new KeyValuePair<string, string>("text", input)
         });
-        using var data = await _http.PostAsync(_askEndpoint, msg);
+        using var data = await http.PostAsync(_askEndpoint, msg);
         var str = await data.Content.ReadAsStringAsync();
-        var obj = JsonConvert.DeserializeObject<CleverbotIOAskResponse>(str);
+        var obj = JsonConvert.DeserializeObject<CleverbotIoAskResponse>(str);
         if (obj.Status != "success")
             throw new OperationCanceledException(obj.Status);
 

src/NadekoBot/Modules/Games/GamesConfigService.cs

@@ -6,12 +6,12 @@ namespace NadekoBot.Modules.Games.Services;
 
 public sealed class GamesConfigService : ConfigServiceBase<GamesConfig>
 {
-    private const string FilePath = "data/games.yml";
-    private static readonly TypedKey<GamesConfig> changeKey = new("config.games.updated");
+    private const string FILE_PATH = "data/games.yml";
+    private static readonly TypedKey<GamesConfig> _changeKey = new("config.games.updated");
     public override string Name { get; } = "games";
 
     public GamesConfigService(IConfigSeria serializer, IPubSub pubSub)
-        : base(FilePath, serializer, pubSub, changeKey)
+        : base(FILE_PATH, serializer, pubSub, _changeKey)
     {
         AddParsedProp("trivia.min_win_req",
             gs => gs.Trivia.MinimumWinReq,

src/NadekoBot/Modules/Games/GamesService.cs

@@ -10,7 +10,7 @@ namespace NadekoBot.Modules.Games.Services;
 
 public class GamesService : INService
 {
-    private const string TypingArticlesPath = "data/typing_articles3.json";
+    private const string TYPING_ARTICLES_PATH = "data/typing_articles3.json";
 
     public ConcurrentDictionary<ulong, GirlRating> GirlRatings { get; } = new();
 
@@ -54,11 +54,11 @@ public class GamesService : INService
 
         try
         {
-            TypingArticles = JsonConvert.DeserializeObject<List<TypingArticle>>(File.ReadAllText(TypingArticlesPath));
+            TypingArticles = JsonConvert.DeserializeObject<List<TypingArticle>>(File.ReadAllText(TYPING_ARTICLES_PATH));
         }
         catch (Exception ex)
         {
-            Log.Warning("Error while loading typing articles {0}", ex.ToString());
+            Log.Warning(ex, "Error while loading typing articles: {ErrorMessage}", ex.Message);
             TypingArticles = new();
         }
     }
@@ -80,7 +80,7 @@ public class GamesService : INService
             Text = text.SanitizeMentions(true)
         });
 
-        File.WriteAllText(TypingArticlesPath, JsonConvert.SerializeObject(TypingArticles));
+        File.WriteAllText(TYPING_ARTICLES_PATH, JsonConvert.SerializeObject(TypingArticles));
     }
 
     public string GetEightballResponse(ulong userId, string question)
@@ -90,7 +90,6 @@ public class GamesService : INService
                 e.Size = question.Length;
                 e.AbsoluteExpirationRelativeToNow = TimeSpan.FromHours(12);
                 return EightBallResponses[_rng.Next(0, EightBallResponses.Count)];
-                ;
             });
 
     public TypingArticle RemoveTypingArticle(int index)
@@ -102,7 +101,7 @@ public class GamesService : INService
         var removed = articles[index];
         TypingArticles.RemoveAt(index);
 
-        File.WriteAllText(TypingArticlesPath, JsonConvert.SerializeObject(articles));
+        File.WriteAllText(TYPING_ARTICLES_PATH, JsonConvert.SerializeObject(articles));
         return removed;
     }
 

src/NadekoBot/Modules/Games/GirlRating.cs

@@ -15,11 +15,8 @@ public class GirlRating
     public AsyncLazy<Stream> Stream { get; }
     private readonly IImageCache _images;
 
-    private readonly IHttpClientFactory _httpFactory;
-
     public GirlRating(
         IImageCache images,
-        IHttpClientFactory factory,
         double crazy,
         double hot,
         int roll,
@@ -30,7 +27,6 @@ public class GirlRating
         Hot = hot;
         Roll = roll;
         Advice = advice; // convenient to have it here, even though atm there are only few different ones.
-        _httpFactory = factory;
 
         Stream = new(() =>
         {

src/NadekoBot/Modules/Games/Hangman/DefaultHangmanSource.cs

@@ -5,7 +5,7 @@ namespace NadekoBot.Modules.Games.Hangman;
 
 public sealed class DefaultHangmanSource : IHangmanSource
 {
-    private IReadOnlyDictionary<string, HangmanTerm[]> _terms = new Dictionary<string, HangmanTerm[]>();
+    private IReadOnlyDictionary<string, HangmanTerm[]> termsDict = new Dictionary<string, HangmanTerm[]>();
     private readonly Random _rng;
 
     public DefaultHangmanSource()
@@ -18,7 +18,7 @@ public sealed class DefaultHangmanSource : IHangmanSource
     {
         if (!Directory.Exists("data/hangman"))
         {
-            Log.Error("Hangman game won't work. Folder 'data/hangman' is missing.");
+            Log.Error("Hangman game won't work. Folder 'data/hangman' is missing");
             return;
         }
 
@@ -31,16 +31,16 @@ public sealed class DefaultHangmanSource : IHangmanSource
             }
             catch (Exception ex)
             {
-                Log.Error(ex, "Loading {HangmanFile} failed.", file);
+                Log.Error(ex, "Loading {HangmanFile} failed", file);
             }
 
-        _terms = qs;
+        termsDict = qs;
 
-        Log.Information("Loaded {HangmanCategoryCount} hangman categories.", qs.Count);
+        Log.Information("Loaded {HangmanCategoryCount} hangman categories", qs.Count);
     }
 
     public IReadOnlyCollection<string> GetCategories()
-        => _terms.Keys.ToList();
+        => termsDict.Keys.ToList();
 
     public bool GetTerm(string? category, [NotNullWhen(true)] out HangmanTerm? term)
     {
@@ -50,7 +50,7 @@ public sealed class DefaultHangmanSource : IHangmanSource
             category = cats.ElementAt(_rng.Next(0, cats.Count));
         }
 
-        if (_terms.TryGetValue(category, out var terms))
+        if (termsDict.TryGetValue(category, out var terms))
         {
             term = terms[_rng.Next(0, terms.Length)];
             return true;

src/NadekoBot/Modules/Games/Hangman/HangmanCommands.cs

@@ -28,19 +28,19 @@ public partial class Games
                          .WithOkColor()
                          .AddField("Hangman", Draw(state))
                          .AddField("Guess", Format.Code(state.Word))
-                         .WithFooter(state.missedLetters.Join(' '));
+                         .WithFooter(state.MissedLetters.Join(' '));
 
             if (state.Phase == HangmanGame.Phase.Ended && state.Failed)
                 return eb.Create()
                          .WithErrorColor()
                          .AddField("Hangman", Draw(state))
                          .AddField("Guess", Format.Code(state.Word))
-                         .WithFooter(state.missedLetters.Join(' '));
+                         .WithFooter(state.MissedLetters.Join(' '));
             return eb.Create()
                      .WithOkColor()
                      .AddField("Hangman", Draw(state))
                      .AddField("Guess", Format.Code(state.Word))
-                     .WithFooter(state.missedLetters.Join(' '));
+                     .WithFooter(state.MissedLetters.Join(' '));
         }
 
         [Cmd]

src/NadekoBot/Modules/Games/Hangman/HangmanGame.cs

@@ -104,7 +104,7 @@ public sealed class HangmanGame
         Phase Phase,
         string Word,
         GuessResult GuessResult,
-        List<char> missedLetters,
+        List<char> MissedLetters,
         string ImageUrl)
     {
         public bool Failed

src/NadekoBot/Modules/Games/Hangman/HangmanService.cs

@@ -54,7 +54,7 @@ public sealed class HangmanService : IHangmanService, ILateExecutor
     {
         lock (_locker)
         {
-            if (_hangmanGames.TryRemove(channelId, out var game)) return new(true);
+            if (_hangmanGames.TryRemove(channelId, out _)) return new(true);
         }
 
         return new(false);

src/NadekoBot/Modules/Games/Nunchi/Nunchi.cs

@@ -13,8 +13,8 @@ public sealed class NunchiGame : IDisposable
         Ended
     }
 
-    private const int _killTimeout = 20 * 1000;
-    private const int _nextRoundTimeout = 5 * 1000;
+    private const int KILL_TIMEOUT = 20 * 1000;
+    private const int NEXT_ROUND_TIMEOUT = 5 * 1000;
 
     public event Func<NunchiGame, Task> OnGameStarted;
     public event Func<NunchiGame, int, Task> OnRoundStarted;
@@ -26,19 +26,19 @@ public sealed class NunchiGame : IDisposable
     public Phase CurrentPhase { get; private set; } = Phase.Joining;
 
     public ImmutableArray<(ulong Id, string Name)> Participants
-        => _participants.ToImmutableArray();
+        => participants.ToImmutableArray();
 
     public int ParticipantCount
-        => _participants.Count;
+        => participants.Count;
 
     private readonly SemaphoreSlim _locker = new(1, 1);
 
-    private HashSet<(ulong Id, string Name)> _participants = new();
+    private HashSet<(ulong Id, string Name)> participants = new();
     private readonly HashSet<(ulong Id, string Name)> _passed = new();
-    private Timer _killTimer;
+    private Timer killTimer;
 
     public NunchiGame(ulong creatorId, string creatorName)
-        => _participants.Add((creatorId, creatorName));
+        => participants.Add((creatorId, creatorName));
 
     public async Task<bool> Join(ulong userId, string userName)
     {
@@ -48,7 +48,7 @@ public sealed class NunchiGame : IDisposable
             if (CurrentPhase != Phase.Joining)
                 return false;
 
-            return _participants.Add((userId, userName));
+            return participants.Add((userId, userName));
         }
         finally { _locker.Release(); }
     }
@@ -60,13 +60,13 @@ public sealed class NunchiGame : IDisposable
         await _locker.WaitAsync();
         try
         {
-            if (_participants.Count < 3)
+            if (participants.Count < 3)
             {
                 CurrentPhase = Phase.Ended;
                 return false;
             }
 
-            _killTimer = new(async _ =>
+            killTimer = new(async _ =>
                 {
                     await _locker.WaitAsync();
                     try
@@ -75,14 +75,14 @@ public sealed class NunchiGame : IDisposable
                             return;
 
                         //if some players took too long to type a number, boot them all out and start a new round
-                        _participants = new HashSet<(ulong, string)>(_passed);
+                        participants = new HashSet<(ulong, string)>(_passed);
                         EndRound();
                     }
                     finally { _locker.Release(); }
                 },
                 null,
-                _killTimeout,
-                _killTimeout);
+                KILL_TIMEOUT,
+                KILL_TIMEOUT);
 
             CurrentPhase = Phase.Playing;
             _= OnGameStarted?.Invoke(this);
@@ -105,7 +105,7 @@ public sealed class NunchiGame : IDisposable
             // if the user is not a member of the race,
             // or he already successfully typed the number
             // ignore the input
-            if (!_participants.Contains(userTuple) || !_passed.Add(userTuple))
+            if (!participants.Contains(userTuple) || !_passed.Add(userTuple))
                 return;
 
             //if the number is correct
@@ -113,20 +113,20 @@ public sealed class NunchiGame : IDisposable
             {
                 //increment current number
                 ++CurrentNumber;
-                if (_passed.Count == _participants.Count - 1)
+                if (_passed.Count == participants.Count - 1)
                 {
                     // if only n players are left, and n - 1 type the correct number, round is over
 
                     // if only 2 players are left, game is over
-                    if (_participants.Count == 2)
+                    if (participants.Count == 2)
                     {
-                        _killTimer.Change(Timeout.Infinite, Timeout.Infinite);
+                        killTimer.Change(Timeout.Infinite, Timeout.Infinite);
                         CurrentPhase = Phase.Ended;
                         _= OnGameEnded?.Invoke(this, userTuple.Name);
                     }
                     else // else just start the new round without the user who was the last
                     {
-                        var failure = _participants.Except(_passed).First();
+                        var failure = participants.Except(_passed).First();
 
                         OnUserGuessed?.Invoke(this);
                         EndRound(failure);
@@ -148,25 +148,25 @@ public sealed class NunchiGame : IDisposable
 
     private void EndRound((ulong, string)? failure = null)
     {
-        _killTimer.Change(_killTimeout, _killTimeout);
+        killTimer.Change(KILL_TIMEOUT, KILL_TIMEOUT);
         CurrentNumber = new NadekoRandom().Next(0, 100); // reset the counter
         _passed.Clear(); // reset all users who passed (new round starts)
         if (failure is not null)
-            _participants.Remove(failure.Value); // remove the dude who failed from the list of players
+            participants.Remove(failure.Value); // remove the dude who failed from the list of players
 
         var __ = OnRoundEnded?.Invoke(this, failure);
-        if (_participants.Count <= 1) // means we have a winner or everyone was booted out
+        if (participants.Count <= 1) // means we have a winner or everyone was booted out
         {
-            _killTimer.Change(Timeout.Infinite, Timeout.Infinite);
+            killTimer.Change(Timeout.Infinite, Timeout.Infinite);
             CurrentPhase = Phase.Ended;
-            _= OnGameEnded?.Invoke(this, _participants.Count > 0 ? _participants.First().Name : null);
+            _= OnGameEnded?.Invoke(this, participants.Count > 0 ? participants.First().Name : null);
             return;
         }
 
         CurrentPhase = Phase.WaitingForNextRound;
         var throwawayDelay = Task.Run(async () =>
         {
-            await Task.Delay(_nextRoundTimeout);
+            await Task.Delay(NEXT_ROUND_TIMEOUT);
             CurrentPhase = Phase.Playing;
             var ___ = OnRoundStarted?.Invoke(this, CurrentNumber);
         });

src/NadekoBot/Modules/Games/Nunchi/NunchiCommands.cs

@@ -38,12 +38,12 @@ public partial class Games
             try { await ConfirmLocalizedAsync(strs.nunchi_created); }
             catch { }
 
-            nunchi.OnGameEnded += Nunchi_OnGameEnded;
+            nunchi.OnGameEnded += NunchiOnGameEnded;
             //nunchi.OnGameStarted += Nunchi_OnGameStarted;
             nunchi.OnRoundEnded += Nunchi_OnRoundEnded;
             nunchi.OnUserGuessed += Nunchi_OnUserGuessed;
             nunchi.OnRoundStarted += Nunchi_OnRoundStarted;
-            _client.MessageReceived += _client_MessageReceived;
+            _client.MessageReceived += ClientMessageReceived;
 
             var success = await nunchi.Initialize();
             if (!success)
@@ -53,7 +53,7 @@ public partial class Games
                 await ConfirmLocalizedAsync(strs.nunchi_failed_to_start);
             }
 
-            Task _client_MessageReceived(SocketMessage arg)
+            Task ClientMessageReceived(SocketMessage arg)
             {
                 _= Task.Run(async () =>
                 {
@@ -73,11 +73,11 @@ public partial class Games
                 return Task.CompletedTask;
             }
 
-            Task Nunchi_OnGameEnded(NunchiGame arg1, string arg2)
+            Task NunchiOnGameEnded(NunchiGame arg1, string arg2)
             {
                 if (_service.NunchiGames.TryRemove(ctx.Guild.Id, out var game))
                 {
-                    _client.MessageReceived -= _client_MessageReceived;
+                    _client.MessageReceived -= ClientMessageReceived;
                     game.Dispose();
                 }
 

src/NadekoBot/Modules/Games/Polls/PollCommands.cs

@@ -90,8 +90,8 @@ public partial class Games
 
             for (var i = 0; i < stats.Length; i++)
             {
-                var (Index, votes, Text) = stats[i];
-                sb.AppendLine(GetText(strs.poll_result(Index + 1, Format.Bold(Text), Format.Bold(votes.ToString()))));
+                var (index, votes, text) = stats[i];
+                sb.AppendLine(GetText(strs.poll_result(index + 1, Format.Bold(text), Format.Bold(votes.ToString()))));
             }
 
             return eb.WithDescription(sb.ToString())

src/NadekoBot/Modules/Games/TicTacToe/TicTacToe.cs

@@ -10,19 +10,19 @@ public class TicTacToe
     private readonly ITextChannel _channel;
     private readonly IGuildUser[] _users;
     private readonly int?[,] _state;
-    private Phase _phase;
-    private int _curUserIndex;
+    private Phase phase;
+    private int curUserIndex;
     private readonly SemaphoreSlim _moveLock;
 
-    private IGuildUser _winner;
+    private IGuildUser winner;
 
     private readonly string[] _numbers =
     {
         ":one:", ":two:", ":three:", ":four:", ":five:", ":six:", ":seven:", ":eight:", ":nine:"
     };
 
-    private IUserMessage _previousMessage;
-    private Timer _timeoutTimer;
+    private IUserMessage previousMessage;
+    private Timer timeoutTimer;
     private readonly IBotStrings _strings;
     private readonly DiscordSocketClient _client;
     private readonly Options _options;
@@ -45,7 +45,7 @@ public class TicTacToe
         _users = new[] { firstUser, null };
         _state = new int?[,] { { null, null, null }, { null, null, null }, { null, null, null } };
 
-        _phase = Phase.Starting;
+        phase = Phase.Starting;
         _moveLock = new(1, 1);
     }
 
@@ -81,16 +81,16 @@ public class TicTacToe
         if (!string.IsNullOrWhiteSpace(title))
             embed.WithTitle(title);
 
-        if (_winner is null)
+        if (winner is null)
         {
-            if (_phase == Phase.Ended)
+            if (phase == Phase.Ended)
                 embed.WithFooter(GetText(strs.ttt_no_moves));
             else
-                embed.WithFooter(GetText(strs.ttt_users_move(_users[_curUserIndex])));
+                embed.WithFooter(GetText(strs.ttt_users_move(_users[curUserIndex])));
         }
         else
         {
-            embed.WithFooter(GetText(strs.ttt_has_won(_winner)));
+            embed.WithFooter(GetText(strs.ttt_has_won(winner)));
         }
 
         return embed;
@@ -115,7 +115,7 @@ public class TicTacToe
 
     public async Task Start(IGuildUser user)
     {
-        if (_phase is Phase.Started or Phase.Ended)
+        if (phase is Phase.Started or Phase.Ended)
         {
             await _channel.SendErrorAsync(_eb, user.Mention + GetText(strs.ttt_already_running));
             return;
@@ -129,21 +129,21 @@ public class TicTacToe
 
         _users[1] = user;
 
-        _phase = Phase.Started;
+        phase = Phase.Started;
 
-        _timeoutTimer = new(async _ =>
+        timeoutTimer = new(async _ =>
             {
                 await _moveLock.WaitAsync();
                 try
                 {
-                    if (_phase == Phase.Ended)
+                    if (phase == Phase.Ended)
                         return;
 
-                    _phase = Phase.Ended;
+                    phase = Phase.Ended;
                     if (_users[1] is not null)
                     {
-                        _winner = _users[_curUserIndex ^= 1];
-                        var del = _previousMessage?.DeleteAsync();
+                        winner = _users[curUserIndex ^= 1];
+                        var del = previousMessage?.DeleteAsync();
                         try
                         {
                             await _channel.EmbedAsync(GetEmbed(GetText(strs.ttt_time_expired)));
@@ -168,7 +168,7 @@ public class TicTacToe
         _client.MessageReceived += Client_MessageReceived;
 
 
-        _previousMessage = await _channel.EmbedAsync(GetEmbed(GetText(strs.game_started)));
+        previousMessage = await _channel.EmbedAsync(GetEmbed(GetText(strs.game_started)));
     }
 
     private bool IsDraw()
@@ -187,8 +187,8 @@ public class TicTacToe
             await _moveLock.WaitAsync();
             try
             {
-                var curUser = _users[_curUserIndex];
-                if (_phase == Phase.Ended || msg.Author?.Id != curUser.Id)
+                var curUser = _users[curUserIndex];
+                if (phase == Phase.Ended || msg.Author?.Id != curUser.Id)
                     return;
 
                 if (int.TryParse(msg.Content, out var index)
@@ -196,69 +196,69 @@ public class TicTacToe
                     && index <= 9
                     && _state[index / 3, index % 3] is null)
                 {
-                    _state[index / 3, index % 3] = _curUserIndex;
+                    _state[index / 3, index % 3] = curUserIndex;
 
                     // i'm lazy
                     if (_state[index / 3, 0] == _state[index / 3, 1] && _state[index / 3, 1] == _state[index / 3, 2])
                     {
-                        _state[index / 3, 0] = _curUserIndex + 2;
-                        _state[index / 3, 1] = _curUserIndex + 2;
-                        _state[index / 3, 2] = _curUserIndex + 2;
+                        _state[index / 3, 0] = curUserIndex + 2;
+                        _state[index / 3, 1] = curUserIndex + 2;
+                        _state[index / 3, 2] = curUserIndex + 2;
 
-                        _phase = Phase.Ended;
+                        phase = Phase.Ended;
                     }
                     else if (_state[0, index % 3] == _state[1, index % 3]
                              && _state[1, index % 3] == _state[2, index % 3])
                     {
-                        _state[0, index % 3] = _curUserIndex + 2;
-                        _state[1, index % 3] = _curUserIndex + 2;
-                        _state[2, index % 3] = _curUserIndex + 2;
+                        _state[0, index % 3] = curUserIndex + 2;
+                        _state[1, index % 3] = curUserIndex + 2;
+                        _state[2, index % 3] = curUserIndex + 2;
 
-                        _phase = Phase.Ended;
+                        phase = Phase.Ended;
                     }
-                    else if (_curUserIndex == _state[0, 0]
+                    else if (curUserIndex == _state[0, 0]
                              && _state[0, 0] == _state[1, 1]
                              && _state[1, 1] == _state[2, 2])
                     {
-                        _state[0, 0] = _curUserIndex + 2;
-                        _state[1, 1] = _curUserIndex + 2;
-                        _state[2, 2] = _curUserIndex + 2;
+                        _state[0, 0] = curUserIndex + 2;
+                        _state[1, 1] = curUserIndex + 2;
+                        _state[2, 2] = curUserIndex + 2;
 
-                        _phase = Phase.Ended;
+                        phase = Phase.Ended;
                     }
-                    else if (_curUserIndex == _state[0, 2]
+                    else if (curUserIndex == _state[0, 2]
                              && _state[0, 2] == _state[1, 1]
                              && _state[1, 1] == _state[2, 0])
                     {
-                        _state[0, 2] = _curUserIndex + 2;
-                        _state[1, 1] = _curUserIndex + 2;
-                        _state[2, 0] = _curUserIndex + 2;
+                        _state[0, 2] = curUserIndex + 2;
+                        _state[1, 1] = curUserIndex + 2;
+                        _state[2, 0] = curUserIndex + 2;
 
-                        _phase = Phase.Ended;
+                        phase = Phase.Ended;
                     }
 
                     var reason = string.Empty;
 
-                    if (_phase == Phase.Ended) // if user won, stop receiving moves
+                    if (phase == Phase.Ended) // if user won, stop receiving moves
                     {
                         reason = GetText(strs.ttt_matched_three);
-                        _winner = _users[_curUserIndex];
+                        winner = _users[curUserIndex];
                         _client.MessageReceived -= Client_MessageReceived;
                         OnEnded?.Invoke(this);
                     }
                     else if (IsDraw())
                     {
                         reason = GetText(strs.ttt_a_draw);
-                        _phase = Phase.Ended;
+                        phase = Phase.Ended;
                         _client.MessageReceived -= Client_MessageReceived;
                         OnEnded?.Invoke(this);
                     }
 
-                    var sendstate = Task.Run(async () =>
+                    _ = Task.Run(async () =>
                     {
                         var del1 = msg.DeleteAsync();
-                        var del2 = _previousMessage?.DeleteAsync();
-                        try { _previousMessage = await _channel.EmbedAsync(GetEmbed(reason)); }
+                        var del2 = previousMessage?.DeleteAsync();
+                        try { previousMessage = await _channel.EmbedAsync(GetEmbed(reason)); }
                         catch { }
 
                         try { await del1; }
@@ -270,9 +270,9 @@ public class TicTacToe
                         }
                         catch { }
                     });
-                    _curUserIndex ^= 1;
+                    curUserIndex ^= 1;
 
-                    _timeoutTimer.Change(_options.TurnTimer * 1000, Timeout.Infinite);
+                    timeoutTimer.Change(_options.TurnTimer * 1000, Timeout.Infinite);
                 }
             }
             finally

src/NadekoBot/Modules/Games/Trivia/TriviaQuestion.cs

@@ -6,10 +6,10 @@ namespace NadekoBot.Modules.Games.Common.Trivia;
 
 public class TriviaQuestion
 {
-    public const int maxStringLength = 22;
+    public const int MAX_STRING_LENGTH = 22;
 
     //represents the min size to judge levDistance with
-    private static readonly HashSet<Tuple<int, int>> strictness = new()
+    private static readonly HashSet<Tuple<int, int>> _strictness = new()
     {
         new(9, 0), new(14, 1), new(19, 2), new(22, 3)
     };
@@ -56,7 +56,7 @@ public class TriviaQuestion
 
     private static bool JudgeGuess(int guessLength, int answerLength, int levDistance)
     {
-        foreach (var level in strictness)
+        foreach (var level in _strictness)
             if (guessLength <= level.Item1 || answerLength <= level.Item1)
             {
                 if (levDistance <= level.Item2)
@@ -78,7 +78,7 @@ public class TriviaQuestion
         str = Regex.Replace(str, "^\\s+", "");
         str = Regex.Replace(str, "\\s+$", "");
         //Trim the really long answers
-        str = str.Length <= maxStringLength ? str : str[..maxStringLength];
+        str = str.Length <= MAX_STRING_LENGTH ? str : str[..MAX_STRING_LENGTH];
         return str;
     }
 

src/NadekoBot/Modules/Games/Trivia/TriviaQuestionPool.cs

@@ -10,14 +10,14 @@ public class TriviaQuestionPool
         => _cache.LocalData.PokemonMap;
 
     private readonly IDataCache _cache;
-    private readonly int maxPokemonId;
+    private readonly int _maxPokemonId;
 
     private readonly NadekoRandom _rng = new();
 
     public TriviaQuestionPool(IDataCache cache)
     {
         _cache = cache;
-        maxPokemonId = 721; //xd
+        _maxPokemonId = 721; //xd
     }
 
     public TriviaQuestion GetRandomQuestion(HashSet<TriviaQuestion> exclude, bool isPokemon)
@@ -27,7 +27,7 @@ public class TriviaQuestionPool
 
         if (isPokemon)
         {
-            var num = _rng.Next(1, maxPokemonId + 1);
+            var num = _rng.Next(1, _maxPokemonId + 1);
             return new("Who's That Pokémon?",
                 Map[num].ToTitleCase(),
                 "Pokemon",
@@ -36,7 +36,15 @@ public class TriviaQuestionPool
         }
 
         TriviaQuestion randomQuestion;
-        while (exclude.Contains(randomQuestion = Pool[_rng.Next(0, Pool.Length)])) ;
+        while (exclude.Contains(randomQuestion = Pool[_rng.Next(0, Pool.Length)]))
+        { 
+            // if too many questions are excluded, clear the exclusion list and start over
+            if (exclude.Count > Pool.Length / 10 * 9)
+            {
+                exclude.Clear();
+                break;
+            }
+        }
 
         return randomQuestion;
     }

src/NadekoBot/Modules/Music/Music.cs

@@ -16,15 +16,15 @@ public sealed partial class Music : NadekoModule<IMusicService>
         Q = 2, Queue = 2, Playlist = 2, Pl = 2
     }
 
-    public const string MusicIconUrl = "http://i.imgur.com/nhKS3PT.png";
+    public const string MUSIC_ICON_URL = "http://i.imgur.com/nhKS3PT.png";
 
     private const int LQ_ITEMS_PER_PAGE = 9;
 
-    private static readonly SemaphoreSlim voiceChannelLock = new(1, 1);
+    private static readonly SemaphoreSlim _voiceChannelLock = new(1, 1);
     private readonly ILogCommandService _logService;
 
-    public Music(ILogCommandService _logService)
-        => this._logService = _logService;
+    public Music(ILogCommandService logService)
+        => _logService = logService;
 
     private async Task<bool> ValidateAsync()
     {
@@ -50,7 +50,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
     private async Task EnsureBotInVoiceChannelAsync(ulong voiceChannelId, IGuildUser botUser = null)
     {
         botUser ??= await ctx.Guild.GetCurrentUserAsync();
-        await voiceChannelLock.WaitAsync();
+        await _voiceChannelLock.WaitAsync();
         try
         {
             if (botUser.VoiceChannel?.Id is null || !_service.TryGetMusicPlayer(ctx.Guild.Id, out _))
@@ -58,7 +58,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
         }
         finally
         {
-            voiceChannelLock.Release();
+            _voiceChannelLock.Release();
         }
     }
 
@@ -111,7 +111,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
         {
             var embed = _eb.Create()
                            .WithOkColor()
-                           .WithAuthor(GetText(strs.queued_song) + " #" + (index + 1), MusicIconUrl)
+                           .WithAuthor(GetText(strs.queued_song) + " #" + (index + 1), MUSIC_ICON_URL)
                            .WithDescription($"{trackInfo.PrettyName()}\n{GetText(strs.queue)} ")
                            .WithFooter(trackInfo.Platform.ToString());
 
@@ -272,7 +272,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
             return;
         }
 
-        IEmbedBuilder printAction(int curPage)
+        IEmbedBuilder PrintAction(int curPage)
         {
             var desc = string.Empty;
             var current = mp.GetCurrentTrack(out var currentIndex);
@@ -317,7 +317,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
 
             var embed = _eb.Create()
                            .WithAuthor(GetText(strs.player_queue(curPage + 1, (tracks.Count / LQ_ITEMS_PER_PAGE) + 1)),
-                               MusicIconUrl)
+                               MUSIC_ICON_URL)
                            .WithDescription(desc)
                            .WithFooter($"  {mp.PrettyVolume()}  |  🎶 {tracks.Count}  |  ⌛ {mp.PrettyTotalTime()}  ")
                            .WithOkColor();
@@ -325,7 +325,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
             return embed;
         }
 
-        await ctx.SendPaginatedConfirmAsync(page, printAction, tracks.Count, LQ_ITEMS_PER_PAGE, false);
+        await ctx.SendPaginatedConfirmAsync(page, PrintAction, tracks.Count, LQ_ITEMS_PER_PAGE, false);
     }
 
     // search
@@ -409,7 +409,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
         }
 
         var embed = _eb.Create()
-                       .WithAuthor(GetText(strs.removed_song) + " #" + index, MusicIconUrl)
+                       .WithAuthor(GetText(strs.removed_song) + " #" + index, MUSIC_ICON_URL)
                        .WithDescription(song.PrettyName())
                        .WithFooter(song.PrettyInfo())
                        .WithErrorColor();
@@ -578,7 +578,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
 
         var embed = _eb.Create()
                        .WithTitle(track.Title.TrimTo(65))
-                       .WithAuthor(GetText(strs.song_moved), MusicIconUrl)
+                       .WithAuthor(GetText(strs.song_moved), MUSIC_ICON_URL)
                        .AddField(GetText(strs.from_position), $"#{from + 1}", true)
                        .AddField(GetText(strs.to_position), $"#{to + 1}", true)
                        .WithOkColor();
@@ -667,7 +667,7 @@ public sealed partial class Music : NadekoModule<IMusicService>
 
         var embed = _eb.Create()
                        .WithOkColor()
-                       .WithAuthor(GetText(strs.now_playing), MusicIconUrl)
+                       .WithAuthor(GetText(strs.now_playing), MUSIC_ICON_URL)
                        .WithDescription(currentTrack.PrettyName())
                        .WithThumbnailUrl(currentTrack.Thumbnail)
                        .WithFooter(

src/NadekoBot/Modules/Music/PlaylistCommands.cs

@@ -23,7 +23,7 @@ public sealed partial class Music
         private async Task EnsureBotInVoiceChannelAsync(ulong voiceChannelId, IGuildUser botUser = null)
         {
             botUser ??= await ctx.Guild.GetCurrentUserAsync();
-            await voiceChannelLock.WaitAsync();
+            await _voiceChannelLock.WaitAsync();
             try
             {
                 if (botUser.VoiceChannel?.Id is null || !_service.TryGetMusicPlayer(ctx.Guild.Id, out _))
@@ -31,7 +31,7 @@ public sealed partial class Music
             }
             finally
             {
-                voiceChannelLock.Release();
+                _voiceChannelLock.Release();
             }
         }
 
@@ -50,7 +50,7 @@ public sealed partial class Music
             }
 
             var embed = _eb.Create(ctx)
-                           .WithAuthor(GetText(strs.playlists_page(num)), MusicIconUrl)
+                           .WithAuthor(GetText(strs.playlists_page(num)), MUSIC_ICON_URL)
                            .WithDescription(string.Join("\n",
                                playlists.Select(r => GetText(strs.playlists(r.Id, r.Name, r.Author, r.Songs.Count)))))
                            .WithOkColor();

src/NadekoBot/Modules/Music/Services/MusicService.cs

@@ -189,7 +189,7 @@ public sealed class MusicService : IMusicService
             _ = lastFinishedMessage?.DeleteAsync();
             var embed = _eb.Create()
                            .WithOkColor()
-                           .WithAuthor(GetText(guildId, strs.finished_song), Music.MusicIconUrl)
+                           .WithAuthor(GetText(guildId, strs.finished_song), Music.MUSIC_ICON_URL)
                            .WithDescription(trackInfo.PrettyName())
                            .WithFooter(trackInfo.PrettyTotalTime());
 
@@ -205,7 +205,7 @@ public sealed class MusicService : IMusicService
             _ = lastPlayingMessage?.DeleteAsync();
             var embed = _eb.Create()
                            .WithOkColor()
-                           .WithAuthor(GetText(guildId, strs.playing_song(index + 1)), Music.MusicIconUrl)
+                           .WithAuthor(GetText(guildId, strs.playing_song(index + 1)), Music.MUSIC_ICON_URL)
                            .WithDescription(trackInfo.PrettyName())
                            .WithFooter($"{mp.PrettyVolume()} | {trackInfo.PrettyInfo()}");
 

src/NadekoBot/Modules/Music/_Common/Impl/MultimediaTimer.cs

@@ -5,7 +5,7 @@ namespace NadekoBot.Modules.Music.Common;
 
 public sealed class MultimediaTimer : IDisposable
 {
-    private LpTimeProcDelegate _lpTimeProc;
+    private LpTimeProcDelegate lpTimeProc;
     private readonly uint _eventId;
     private readonly Action<object> _callback;
     private readonly object _state;
@@ -18,8 +18,8 @@ public sealed class MultimediaTimer : IDisposable
         _callback = callback;
         _state = state;
 
-        _lpTimeProc = CallbackInternal;
-        _eventId = timeSetEvent((uint)period, 1, _lpTimeProc, 0, TimerMode.Periodic);
+        lpTimeProc = CallbackInternal;
+        _eventId = timeSetEvent((uint)period, 1, lpTimeProc, 0, TimerMode.Periodic);
     }
 
     /// <summary>
@@ -58,13 +58,13 @@ public sealed class MultimediaTimer : IDisposable
     /// <summary>
     ///     The timeKillEvent function cancels a specified timer event.
     /// </summary>
-    /// <param name="uTimerID">
+    /// <param name="uTimerId">
     ///     Identifier of the timer event to cancel.
     ///     This identifier was returned by the timeSetEvent function when the timer event was set up.
     /// </param>
     /// <returns>Returns TIMERR_NOERROR if successful or MMSYSERR_INVALPARAM if the specified timer event does not exist.</returns>
     [DllImport("Winmm.dll")]
-    private static extern int timeKillEvent(uint uTimerID);
+    private static extern int timeKillEvent(uint uTimerId);
 
     private void CallbackInternal(
         uint uTimerId,
@@ -76,12 +76,12 @@ public sealed class MultimediaTimer : IDisposable
 
     public void Dispose()
     {
-        _lpTimeProc = default;
+        lpTimeProc = default;
         timeKillEvent(_eventId);
     }
 
     private delegate void LpTimeProcDelegate(
-        uint uTimerID,
+        uint uTimerId,
         uint uMsg,
         int dwUser,
         int dw1,

src/NadekoBot/Modules/Music/_Common/Impl/MusicPlayer.cs

@@ -22,7 +22,7 @@ public sealed class MusicPlayer : IMusicPlayer
 
     public float Volume { get; private set; } = 1.0f;
 
-    private readonly AdjustVolumeDelegate AdjustVolume;
+    private readonly AdjustVolumeDelegate _adjustVolume;
     private readonly VoiceClient _vc;
 
     private readonly IMusicQueue _queue;
@@ -30,8 +30,8 @@ public sealed class MusicPlayer : IMusicPlayer
     private readonly IVoiceProxy _proxy;
     private readonly ISongBuffer _songBuffer;
 
-    private bool _skipped;
-    private int? _forceIndex;
+    private bool skipped;
+    private int? forceIndex;
     private readonly Thread _thread;
     private readonly Random _rng;
 
@@ -48,9 +48,9 @@ public sealed class MusicPlayer : IMusicPlayer
 
         _vc = GetVoiceClient(qualityPreset);
         if (_vc.BitDepth == 16)
-            AdjustVolume = AdjustVolumeInt16;
+            _adjustVolume = AdjustVolumeInt16;
         else
-            AdjustVolume = AdjustVolumeFloat32;
+            _adjustVolume = AdjustVolumeFloat32;
 
         _songBuffer = new PoopyBufferImmortalized(_vc.InputLength);
 
@@ -95,9 +95,9 @@ public sealed class MusicPlayer : IMusicPlayer
                 continue;
             }
 
-            if (_skipped)
+            if (skipped)
             {
-                _skipped = false;
+                skipped = false;
                 _queue.Advance();
                 continue;
             }
@@ -182,9 +182,9 @@ public sealed class MusicPlayer : IMusicPlayer
                 {
                     // doing the skip this way instead of in the condition
                     // ensures that a song will for sure be skipped
-                    if (_skipped)
+                    if (skipped)
                     {
-                        _skipped = false;
+                        skipped = false;
                         break;
                     }
 
@@ -268,10 +268,9 @@ public sealed class MusicPlayer : IMusicPlayer
                 _ = OnCompleted?.Invoke(this, track);
 
                 HandleQueuePostTrack();
-                _skipped = false;
+                skipped = false;
 
                 _ = _proxy.StopSpeakingAsync();
-                ;
 
                 await Task.Delay(100);
             }
@@ -285,16 +284,16 @@ public sealed class MusicPlayer : IMusicPlayer
         // if nothing is read from the buffer, song is finished
         if (data.Length == 0) return null;
 
-        AdjustVolume(data, Volume);
+        _adjustVolume(data, Volume);
         return _proxy.SendPcmFrame(vc, data, length);
     }
 
     private void HandleQueuePostTrack()
     {
-        if (_forceIndex is { } forceIndex)
+        if (this.forceIndex is { } forceIndex)
         {
             _queue.SetIndex(forceIndex);
-            _forceIndex = null;
+            this.forceIndex = null;
             return;
         }
 
@@ -419,7 +418,7 @@ public sealed class MusicPlayer : IMusicPlayer
     public void Clear()
     {
         _queue.Clear();
-        _skipped = true;
+        skipped = true;
     }
 
     public IReadOnlyCollection<IQueuedTrackInfo> GetQueuedTracks()
@@ -430,7 +429,7 @@ public sealed class MusicPlayer : IMusicPlayer
 
     public void Next()
     {
-        _skipped = true;
+        skipped = true;
         IsStopped = false;
         IsPaused = false;
     }
@@ -439,8 +438,8 @@ public sealed class MusicPlayer : IMusicPlayer
     {
         if (_queue.SetIndex(index))
         {
-            _forceIndex = index;
-            _skipped = true;
+            forceIndex = index;
+            skipped = true;
             IsStopped = false;
             IsPaused = false;
             return true;
@@ -463,7 +462,7 @@ public sealed class MusicPlayer : IMusicPlayer
         IsKilled = true;
         IsStopped = true;
         IsPaused = false;
-        _skipped = true;
+        skipped = true;
     }
 
     public bool TryRemoveTrackAt(int index, out IQueuedTrackInfo? trackInfo)
@@ -472,7 +471,7 @@ public sealed class MusicPlayer : IMusicPlayer
             return false;
 
         if (isCurrent)
-            _skipped = true;
+            skipped = true;
 
         return true;
     }

src/NadekoBot/Modules/Music/_Common/Impl/MusicQueue.cs

@@ -91,7 +91,7 @@ public sealed partial class MusicQueue : IMusicQueue
 
             var currentNode = tracks.First!;
             int i;
-            for (i = 1; i <= this.index; i++)
+            for (i = 1; i <= index; i++)
                 currentNode = currentNode.Next!; // can't be null because index is always in range of the count
 
             var added = new QueuedTrackInfo(trackInfo, queuer);
@@ -110,7 +110,7 @@ public sealed partial class MusicQueue : IMusicQueue
             foreach (var track in toEnqueue)
             {
                 var added = new QueuedTrackInfo(track, queuer);
-                this.tracks.AddLast(added);
+                tracks.AddLast(added);
             }
         }
     }
@@ -156,7 +156,7 @@ public sealed partial class MusicQueue : IMusicQueue
             if (newIndex < 0 || newIndex >= tracks.Count)
                 return false;
 
-            this.index = newIndex;
+            index = newIndex;
             return true;
         }
     }
@@ -170,11 +170,11 @@ public sealed partial class MusicQueue : IMusicQueue
         trackInfo = removedNode.Value;
         tracks.Remove(removedNode);
 
-        if (i <= this.index)
-            --this.index;
+        if (i <= index)
+            --index;
 
-        if (this.index < 0)
-            this.index = Count;
+        if (index < 0)
+            index = Count;
 
         // if it was the last song in the queue
         // // wrap back to start
@@ -303,7 +303,7 @@ public sealed partial class MusicQueue : IMusicQueue
             if (remoteAt < 0 || remoteAt >= tracks.Count)
                 return false;
 
-            if (remoteAt == this.index) isCurrent = true;
+            if (remoteAt == index) isCurrent = true;
 
             RemoveAtInternal(remoteAt, out trackInfo);
 

src/NadekoBot/Modules/Music/_Common/Resolvers/YtdlYoutubeResolver.cs

@@ -5,12 +5,12 @@ namespace NadekoBot.Modules.Music;
 
 public sealed class YtdlYoutubeResolver : IYoutubeResolver
 {
-    private static readonly string[] durationFormats =
+    private static readonly string[] _durationFormats =
     {
         "ss", "m\\:ss", "mm\\:ss", "h\\:mm\\:ss", "hh\\:mm\\:ss", "hhh\\:mm\\:ss"
     };
 
-    private static readonly Regex expiryRegex = new(@"(?:[\?\&]expire\=(?<timestamp>\d+))");
+    private static readonly Regex _expiryRegex = new(@"(?:[\?\&]expire\=(?<timestamp>\d+))");
 
 
     private static readonly Regex _simplePlaylistRegex = new(@"&list=(?<id>[\w\-]{12,})", RegexOptions.Compiled);
@@ -85,7 +85,7 @@ public sealed class YtdlYoutubeResolver : IYoutubeResolver
             return default;
         }
 
-        if (!TimeSpan.TryParseExact(dataArray[4], durationFormats, CultureInfo.InvariantCulture, out var time))
+        if (!TimeSpan.TryParseExact(dataArray[4], _durationFormats, CultureInfo.InvariantCulture, out var time))
             time = TimeSpan.Zero;
 
         var thumbnail = Uri.IsWellFormedUriString(dataArray[3], UriKind.Absolute) ? dataArray[3].Trim() : string.Empty;
@@ -108,7 +108,7 @@ public sealed class YtdlYoutubeResolver : IYoutubeResolver
 
     private static TimeSpan GetExpiry(string streamUrl)
     {
-        var match = expiryRegex.Match(streamUrl);
+        var match = _expiryRegex.Match(streamUrl);
         if (match.Success && double.TryParse(match.Groups["timestamp"].ToString(), out var timestamp))
         {
             var realExpiry = timestamp.ToUnixTimestamp() - DateTime.UtcNow;

src/NadekoBot/Modules/Nsfw/Nsfw.cs

@@ -36,7 +36,7 @@ public partial class NSFW : NadekoModule<ISearchImagesService>
         }
     }
 
-    private async Task InternalButts(IMessageChannel Channel)
+    private async Task InternalButts(IMessageChannel channel)
     {
         try
         {
@@ -47,7 +47,7 @@ public partial class NSFW : NadekoModule<ISearchImagesService>
                     await http.GetStringAsync($"http://api.obutts.ru/butts/{new NadekoRandom().Next(0, 4335)}"))[0];
             }
 
-            await Channel.SendMessageAsync($"http://media.obutts.ru/{obj["preview"]}");
+            await channel.SendMessageAsync($"http://media.obutts.ru/{obj["preview"]}");
         }
         catch (Exception ex)
         {

src/NadekoBot/Modules/Nsfw/SearchImagesService.cs

@@ -35,7 +35,7 @@ public class SearchImagesService : ISearchImagesService, INService
     private readonly IHttpClientFactory _httpFactory;
     private readonly DbService _db;
 
-    private readonly object taglock = new();
+    private readonly object _taglock = new();
 
     public SearchImagesService(
         DbService db,
@@ -188,7 +188,7 @@ public class SearchImagesService : ISearchImagesService, INService
 
     public ValueTask<bool> ToggleBlacklistTag(ulong guildId, string tag)
     {
-        lock (taglock)
+        lock (_taglock)
         {
             tag = tag.Trim().ToLowerInvariant();
             var blacklistedTags = BlacklistedTags.GetOrAdd(guildId, new HashSet<string>());
@@ -214,7 +214,7 @@ public class SearchImagesService : ISearchImagesService, INService
 
     public ValueTask<string[]> GetBlacklistedTags(ulong guildId)
     {
-        lock (taglock)
+        lock (_taglock)
         {
             if (BlacklistedTags.TryGetValue(guildId, out var tags)) return new(tags.ToArray());
 

src/NadekoBot/Modules/Nsfw/_Common/Downloaders/ImageDownloader.cs

@@ -10,7 +10,7 @@ public abstract class ImageDownloader<T> : IImageDownloader
     public Booru Booru { get; }
     protected readonly HttpClient _http;
 
-    protected JsonSerializerOptions _serializerOptions = new()
+    protected readonly JsonSerializerOptions _serializerOptions = new()
     {
         PropertyNameCaseInsensitive = true,
         NumberHandling = JsonNumberHandling.WriteAsString | JsonNumberHandling.AllowReadingFromString

src/NadekoBot/Modules/Permissions/Blacklist/BlacklistService.cs

@@ -30,7 +30,7 @@ public sealed class BlacklistService : IEarlyBehavior
 
     private ValueTask OnReload(BlacklistEntry[] newBlacklist)
     {
-        this.blacklist = newBlacklist;
+        blacklist = newBlacklist;
         return default;
     }
 

src/NadekoBot/Modules/Permissions/GlobalPermissions/GlobalPermissionCommands.cs

@@ -9,7 +9,7 @@ public partial class Permissions
     [Group]
     public partial class GlobalPermissionCommands : NadekoSubmodule
     {
-        private GlobalPermissionService _service;
+        private readonly GlobalPermissionService _service;
         private readonly DbService _db;
 
         public GlobalPermissionCommands(GlobalPermissionService service, DbService db)

src/NadekoBot/Modules/Searches/Crypto/CryptoService.cs

@@ -10,7 +10,7 @@ public class CryptoService : INService
     private readonly IHttpClientFactory _httpFactory;
     private readonly IBotCredentials _creds;
 
-    private readonly SemaphoreSlim getCryptoLock = new(1, 1);
+    private readonly SemaphoreSlim _getCryptoLock = new(1, 1);
 
     public CryptoService(IDataCache cache, IHttpClientFactory httpFactory, IBotCredentials creds)
     {
@@ -52,7 +52,7 @@ public class CryptoService : INService
 
     public async Task<List<CryptoResponseData>> CryptoData()
     {
-        await getCryptoLock.WaitAsync();
+        await _getCryptoLock.WaitAsync();
         try
         {
             var fullStrData = await _cache.GetOrAddCachedDataAsync("nadeko:crypto_data",
@@ -81,7 +81,7 @@ public class CryptoService : INService
                 "",
                 TimeSpan.FromHours(1));
 
-            return JsonConvert.DeserializeObject<CryptoResponse>(fullStrData).Data;
+            return JsonConvert.DeserializeObject<CryptoResponse>(fullStrData)?.Data ?? new();
         }
         catch (Exception ex)
         {
@@ -90,7 +90,7 @@ public class CryptoService : INService
         }
         finally
         {
-            getCryptoLock.Release();
+            _getCryptoLock.Release();
         }
     }
 }

src/NadekoBot/Modules/Searches/Feeds/FeedCommands.cs

@@ -10,7 +10,7 @@ public partial class Searches
     [Group]
     public partial class FeedCommands : NadekoSubmodule<FeedsService>
     {
-        private static readonly Regex YtChannelRegex =
+        private static readonly Regex _ytChannelRegex =
             new(@"youtube\.com\/(?:c\/|channel\/|user\/)?(?<channelid>[a-zA-Z0-9\-]{1,})");
 
         [Cmd]
@@ -18,7 +18,7 @@ public partial class Searches
         [UserPerm(GuildPerm.ManageMessages)]
         public partial Task YtUploadNotif(string url, [Leftover] ITextChannel channel = null)
         {
-            var m = YtChannelRegex.Match(url);
+            var m = _ytChannelRegex.Match(url);
             if (!m.Success) return ReplyErrorLocalizedAsync(strs.invalid_input);
 
             var channelId = m.Groups["channelid"].Value;
@@ -38,7 +38,7 @@ public partial class Searches
                 channel ??= (ITextChannel)ctx.Channel;
                 try
                 {
-                    var feeds = await FeedReader.ReadAsync(url);
+                    await FeedReader.ReadAsync(url);
                 }
                 catch (Exception ex)
                 {

src/NadekoBot/Modules/Searches/OsuCommands.cs

@@ -115,7 +115,6 @@ public partial class Searches
         [Cmd]
         public async partial Task Osu5(string user, [Leftover] string mode = null)
         {
-            ;
             if (string.IsNullOrWhiteSpace(_creds.OsuApiKey))
             {
                 await SendErrorAsync("An osu! API key is required.");

src/NadekoBot/Modules/Searches/SearchesService.cs

@@ -46,7 +46,7 @@ public class SearchesService : INService
     private readonly NadekoRandom _rng;
     private readonly List<string> _yomamaJokes;
 
-    private readonly object yomamaLock = new();
+    private readonly object _yomamaLock = new();
     private int yomamaJokeIndex;
 
     public SearchesService(
@@ -224,9 +224,11 @@ public class SearchesService : INService
 
             using var req = new HttpRequestMessage(HttpMethod.Get,
                 "http://api.timezonedb.com/v2.1/get-time-zone?"
-                + $"key={_creds.TimezoneDbApiKey}&format=json&"
-                + "by=position&"
-                + $"lat={geoData.Lat}&lng={geoData.Lon}");
+                + $"key={_creds.TimezoneDbApiKey}"
+                + $"&format=json"
+                + $"&by=position"
+                + $"&lat={geoData.Lat}"
+                + $"&lng={geoData.Lon}");
             using var geoRes = await http.SendAsync(req);
             var resString = await geoRes.Content.ReadAsStringAsync();
             var timeObj = JsonConvert.DeserializeObject<TimeZoneResult>(resString);
@@ -274,7 +276,7 @@ public class SearchesService : INService
     public Task<string> GetYomamaJoke()
     {
         string joke;
-        lock (yomamaLock)
+        lock (_yomamaLock)
         {
             if (yomamaJokeIndex >= _yomamaJokes.Count)
             {
@@ -428,8 +430,6 @@ public class SearchesService : INService
 
     public async Task<int> GetSteamAppIdByName(string query)
     {
-        var redis = _cache.Redis;
-        var db = redis.GetDatabase();
         const string steamGameIdsKey = "steam_names_to_appid";
         // var exists = await db.KeyExistsAsync(steamGameIdsKey);
 

src/NadekoBot/Modules/Searches/StreamNotification/StreamNotificationCommands.cs

@@ -59,7 +59,7 @@ public partial class Searches
         [UserPerm(GuildPerm.Administrator)]
         public async partial Task StreamsClear()
         {
-            var count = _service.ClearAllStreams(ctx.Guild.Id);
+            await _service.ClearAllStreams(ctx.Guild.Id);
             await ReplyConfirmLocalizedAsync(strs.streams_cleared);
         }
 

src/NadekoBot/Modules/Searches/StreamNotification/StreamNotificationService.cs

@@ -116,7 +116,7 @@ public sealed class StreamNotificationService : INService
                             return;
 
                         var deleteGroups = failingStreams.GroupBy(x => x.Type)
-                                                         .ToDictionary(x => x.Key, x => x.Select(x => x.Name).ToList());
+                                                         .ToDictionary(x => x.Key, x => x.Select(y => y.Name).ToList());
 
                         using var uow = _db.GetDbContext();
                         foreach (var kvp in deleteGroups)

src/NadekoBot/Modules/Searches/YoutubeTrack/YtTrackService.cs

@@ -1,5 +1,4 @@
 #nullable disable
-namespace NadekoBot.Modules.Searches.Services;
 
 // public class YtTrackService : INService
 // {

src/NadekoBot/Modules/Searches/_Common/StreamNotifications/Models/TwitchResponseHelix.cs

@@ -1,22 +0,0 @@
-#nullable disable
-namespace NadekoBot.Modules.Searches.Common;
-
-//
-// public class TwitchResponse
-// {
-//     public List<StreamApiData> Data { get; set; }
-//
-//     public class StreamApiData
-//     {
-//         public string Id { get; set; }
-//         public string UserId { get; set; }
-//         public string UserName { get; set; }
-//         public string GameId { get; set; }
-//         public string Type { get; set; }
-//         public string Title { get; set; }
-//         public int ViewerCount { get; set; }
-//         public string Language { get; set; }
-//         public string ThumbnailUrl { get; set; }
-//         public DateTime StartedAt { get; set; }
-//     }
-// }

src/NadekoBot/Modules/Utility/CommandMap/CommandMapCommands.cs

@@ -34,8 +34,6 @@ public partial class Utility
         [RequireContext(ContextType.Guild)]
         public async partial Task Alias(string trigger, [Leftover] string mapping = null)
         {
-            var channel = (ITextChannel)ctx.Channel;
-
             if (string.IsNullOrWhiteSpace(trigger))
                 return;
 
@@ -52,7 +50,6 @@ public partial class Utility
                 await using (var uow = _db.GetDbContext())
                 {
                     var config = uow.GuildConfigsForId(ctx.Guild.Id, set => set.Include(x => x.CommandAliases));
-                    var toAdd = new CommandAlias { Mapping = mapping, Trigger = trigger };
                     var tr = config.CommandAliases.FirstOrDefault(x => x.Trigger == trigger);
                     if (tr is not null)
                         uow.Set<CommandAlias>().Remove(tr);
@@ -84,9 +81,9 @@ public partial class Utility
                     {
                         var config = uow.GuildConfigsForId(ctx.Guild.Id, set => set.Include(x => x.CommandAliases));
                         var toAdd = new CommandAlias { Mapping = mapping, Trigger = trigger };
-                        var toRemove = config.CommandAliases.Where(x => x.Trigger == trigger);
+                        var toRemove = config.CommandAliases.Where(x => x.Trigger == trigger).ToArray();
                         if (toRemove.Any())
-                            uow.RemoveRange(toRemove.ToArray());
+                            uow.RemoveRange(toRemove);
                         config.CommandAliases.Add(toAdd);
                         uow.SaveChanges();
                     }
@@ -103,7 +100,6 @@ public partial class Utility
         [RequireContext(ContextType.Guild)]
         public async partial Task AliasList(int page = 1)
         {
-            var channel = (ITextChannel)ctx.Channel;
             page -= 1;
 
             if (page < 0)

src/NadekoBot/Modules/Utility/ConfigCommands.cs

@@ -107,7 +107,7 @@ public partial class Utility
                 if (string.IsNullOrWhiteSpace(value))
                     value = "-";
 
-                if (prop != "currency.sign") value = Format.Code(Format.Sanitize(value?.TrimTo(1000)), "json");
+                if (prop != "currency.sign") value = Format.Code(Format.Sanitize(value.TrimTo(1000)), "json");
 
                 var embed = _eb.Create()
                                .WithOkColor()
@@ -134,7 +134,7 @@ public partial class Utility
             await ctx.OkAsync();
         }
 
-        private string GetPropsAndValuesString(IConfigService config, IEnumerable<string> names)
+        private string GetPropsAndValuesString(IConfigService config, IReadOnlyCollection<string> names)
         {
             var propValues = names.Select(pr =>
             {
@@ -142,7 +142,7 @@ public partial class Utility
                 if (pr != "currency.sign")
                     val = val?.TrimTo(28);
                 return val?.Replace("\n", "") ?? "-";
-            });
+            }).ToList();
 
             var strings = names.Zip(propValues, (name, value) => $"{name,-25} = {value}\n");
 

src/NadekoBot/Modules/Utility/Patreon/PatreonRewardsService.cs

@@ -150,7 +150,7 @@ public class PatreonRewardsService : INService
                            + "?fields%5Bmember%5D=full_name,currently_entitled_amount_cents"
                            + "&fields%5Buser%5D=social_connections"
                            + "&include=user";
-                PatreonResponse data = null;
+                PatreonResponse data;
                 do
                 {
                     var res = await http.GetStringAsync(page);

src/NadekoBot/Modules/Utility/Quote/QuoteCommands.cs

@@ -62,13 +62,17 @@ public partial class Utility
             }
 
             if (quotes.Any())
+            {
                 await SendConfirmAsync(GetText(strs.quotes_page(page + 1)),
                     string.Join("\n",
                         quotes.Select(q
                             => $"`#{q.Id}` {Format.Bold(q.Keyword.SanitizeAllMentions()),-20} by {q.AuthorName.SanitizeAllMentions()}")));
+            }
             else
+            {
                 await ReplyErrorLocalizedAsync(strs.quotes_page_none);
             }
+        }
 
         [Cmd]
         [RequireContext(ContextType.Guild)]

src/NadekoBot/Modules/Utility/Repeater/RunningRepeater.cs

@@ -55,7 +55,6 @@ public sealed class RunningRepeater
     /// <summary>
     ///     Calculate when is the proper time to run the repeater again based on initial time repeater ran.
     /// </summary>
-    /// <param name="repeaterter"></param>
     /// <param name="initialDateTime">Initial time repeater ran at (or should run at).</param>
     private DateTime CalculateInitialInterval(DateTime initialDateTime)
     {

src/NadekoBot/Modules/Utility/UnitConversion/ConverterService.cs

@@ -23,7 +23,7 @@ public class ConverterService : INService
         _httpFactory = factory;
 
         if (client.ShardId == 0)
-            _currencyUpdater = new(async shouldLoad => await UpdateCurrency((bool)shouldLoad),
+            _currencyUpdater = new(async shouldLoad => await UpdateCurrency((bool)shouldLoad!),
                 client.ShardId == 0,
                 TimeSpan.Zero,
                 _updateInterval);
@@ -55,7 +55,9 @@ public class ConverterService : INService
                                          .ToArray();
 
                 var fileData = JsonConvert.DeserializeObject<ConvertUnit[]>(File.ReadAllText("data/units.json"))
-                                          .Where(x => x.UnitType != "currency");
+                                          ?.Where(x => x.UnitType != "currency");
+                if (fileData is null)
+                    return;
 
                 var data = JsonConvert.SerializeObject(range.Append(baseType).Concat(fileData).ToList());
                 _cache.Redis.GetDatabase().StringSet("converter_units", data);

src/NadekoBot/Modules/Utility/VerboseErrors/VerboseErrorsService.cs

@@ -6,7 +6,7 @@ namespace NadekoBot.Modules.Utility.Services;
 
 public class VerboseErrorsService : INService
 {
-    private readonly ConcurrentHashSet<ulong> guildsEnabled;
+    private readonly ConcurrentHashSet<ulong> _guildsEnabled;
     private readonly DbService _db;
     private readonly CommandHandler _ch;
     private readonly HelpService _hs;
@@ -23,12 +23,12 @@ public class VerboseErrorsService : INService
 
         _ch.CommandErrored += LogVerboseError;
 
-        guildsEnabled = new(bot.AllGuildConfigs.Where(x => x.VerboseErrors).Select(x => x.GuildId));
+        _guildsEnabled = new(bot.AllGuildConfigs.Where(x => x.VerboseErrors).Select(x => x.GuildId));
     }
 
     private async Task LogVerboseError(CommandInfo cmd, ITextChannel channel, string reason)
     {
-        if (channel is null || !guildsEnabled.Contains(channel.GuildId))
+        if (channel is null || !_guildsEnabled.Contains(channel.GuildId))
             return;
 
         try
@@ -60,9 +60,9 @@ public class VerboseErrorsService : INService
         }
 
         if ((bool)enabled) // This doesn't need to be duplicated inside the using block
-            guildsEnabled.Add(guildId);
+            _guildsEnabled.Add(guildId);
         else
-            guildsEnabled.TryRemove(guildId);
+            _guildsEnabled.TryRemove(guildId);
 
         return (bool)enabled;
     }

src/NadekoBot/Modules/Xp/Club/ClubService.cs

@@ -9,10 +9,10 @@ public class ClubService : INService
     private readonly DbService _db;
     private readonly IHttpClientFactory _httpFactory;
 
-    public ClubService(DbService db, IHttpClientFactory _httpFactory)
+    public ClubService(DbService db, IHttpClientFactory httpFactory)
     {
         _db = db;
-        this._httpFactory = _httpFactory;
+        _httpFactory = httpFactory;
     }
 
     public bool CreateClub(IUser user, string clubName, out ClubInfo club)

src/NadekoBot/Modules/Xp/XpConfigService.cs

@@ -5,12 +5,13 @@ namespace NadekoBot.Modules.Xp.Services;
 
 public sealed class XpConfigService : ConfigServiceBase<XpConfig>
 {
-    private const string FilePath = "data/xp.yml";
-    private static readonly TypedKey<XpConfig> changeKey = new("config.xp.updated");
-    public override string Name { get; } = "xp";
+    private const string FILE_PATH = "data/xp.yml";
+    private static readonly TypedKey<XpConfig> _changeKey = new("config.xp.updated");
+    public override string Name
+        => "xp";
 
     public XpConfigService(IConfigSeria serializer, IPubSub pubSub)
-        : base(FilePath, serializer, pubSub, changeKey)
+        : base(FILE_PATH, serializer, pubSub, _changeKey)
     {
         AddParsedProp("txt.cooldown",
             conf => conf.MessageXpCooldown,

src/NadekoBot/Modules/Xp/XpService.cs

@@ -42,7 +42,7 @@ public class XpService : INService
     private readonly ConcurrentHashSet<ulong> _excludedServers;
 
     private readonly ConcurrentQueue<UserCacheItem> _addMessageXp = new();
-    private XpTemplate _template;
+    private XpTemplate template;
     private readonly DiscordSocketClient _client;
 
     private readonly TypedKey<bool> _xpTemplateReloadKey;
@@ -266,15 +266,15 @@ public class XpService : INService
             {
                 ContractResolver = new RequireObjectPropertiesContractResolver()
             };
-            _template = JsonConvert.DeserializeObject<XpTemplate>(File.ReadAllText("./data/xp_template.json"),
+            template = JsonConvert.DeserializeObject<XpTemplate>(File.ReadAllText("./data/xp_template.json"),
                 settings);
         }
         catch (Exception ex)
         {
             Log.Error(ex, "Xp template is invalid. Loaded default values");
-            _template = new();
+            template = new();
             File.WriteAllText("./data/xp_template_backup.json",
-                JsonConvert.SerializeObject(_template, Formatting.Indented));
+                JsonConvert.SerializeObject(template, Formatting.Indented));
         }
     }
 
@@ -583,7 +583,7 @@ public class XpService : INService
     public async Task<FullUserStats> GetUserStatsAsync(IGuildUser user)
     {
         DiscordUser du;
-        UserXpStats stats = null;
+        UserXpStats stats;
         int totalXp;
         int globalRank;
         int guildRank;
@@ -691,58 +691,58 @@ public class XpService : INService
             }.WithFallbackFonts(_fonts.FallBackFonts);
 
             using var img = Image.Load<Rgba32>(_images.XpBackground, out var imageFormat);
-            if (_template.User.Name.Show)
+            if (template.User.Name.Show)
             {
-                var fontSize = (int)(_template.User.Name.FontSize * 0.9);
+                var fontSize = (int)(template.User.Name.FontSize * 0.9);
                 var username = stats.User.ToString();
                 var usernameFont = _fonts.NotoSans.CreateFont(fontSize, FontStyle.Bold);
 
                 var size = TextMeasurer.Measure($"@{username}", new(usernameFont));
                 var scale = 400f / size.Width;
                 if (scale < 1)
-                    usernameFont = _fonts.NotoSans.CreateFont(_template.User.Name.FontSize * scale, FontStyle.Bold);
+                    usernameFont = _fonts.NotoSans.CreateFont(template.User.Name.FontSize * scale, FontStyle.Bold);
 
                 img.Mutate(x =>
                 {
                     x.DrawText(usernameTextOptions,
                         "@" + username,
                         usernameFont,
-                        _template.User.Name.Color,
-                        new(_template.User.Name.Pos.X, _template.User.Name.Pos.Y + 8));
+                        template.User.Name.Color,
+                        new(template.User.Name.Pos.X, template.User.Name.Pos.Y + 8));
                 });
             }
 
             //club name
 
-            if (_template.Club.Name.Show)
+            if (template.Club.Name.Show)
             {
                 var clubName = stats.User.Club?.ToString() ?? "-";
 
-                var clubFont = _fonts.NotoSans.CreateFont(_template.Club.Name.FontSize, FontStyle.Regular);
+                var clubFont = _fonts.NotoSans.CreateFont(template.Club.Name.FontSize, FontStyle.Regular);
 
                 img.Mutate(x => x.DrawText(clubTextOptions,
                     clubName,
                     clubFont,
-                    _template.Club.Name.Color,
-                    new(_template.Club.Name.Pos.X + 50, _template.Club.Name.Pos.Y - 8)));
+                    template.Club.Name.Color,
+                    new(template.Club.Name.Pos.X + 50, template.Club.Name.Pos.Y - 8)));
             }
 
-            if (_template.User.GlobalLevel.Show)
+            if (template.User.GlobalLevel.Show)
                 img.Mutate(x =>
                 {
                     x.DrawText(stats.Global.Level.ToString(),
-                        _fonts.NotoSans.CreateFont(_template.User.GlobalLevel.FontSize, FontStyle.Bold),
-                        _template.User.GlobalLevel.Color,
-                        new(_template.User.GlobalLevel.Pos.X, _template.User.GlobalLevel.Pos.Y)); //level
+                        _fonts.NotoSans.CreateFont(template.User.GlobalLevel.FontSize, FontStyle.Bold),
+                        template.User.GlobalLevel.Color,
+                        new(template.User.GlobalLevel.Pos.X, template.User.GlobalLevel.Pos.Y)); //level
                 });
 
-            if (_template.User.GuildLevel.Show)
+            if (template.User.GuildLevel.Show)
                 img.Mutate(x =>
                 {
                     x.DrawText(stats.Guild.Level.ToString(),
-                        _fonts.NotoSans.CreateFont(_template.User.GuildLevel.FontSize, FontStyle.Bold),
-                        _template.User.GuildLevel.Color,
-                        new(_template.User.GuildLevel.Pos.X, _template.User.GuildLevel.Pos.Y));
+                        _fonts.NotoSans.CreateFont(template.User.GuildLevel.FontSize, FontStyle.Bold),
+                        template.User.GuildLevel.Color,
+                        new(template.User.GuildLevel.Pos.X, template.User.GuildLevel.Pos.Y));
                 });
 
 
@@ -752,53 +752,53 @@ public class XpService : INService
             var guild = stats.Guild;
 
             //xp bar
-            if (_template.User.Xp.Bar.Show)
+            if (template.User.Xp.Bar.Show)
             {
                 var xpPercent = global.LevelXp / (float)global.RequiredXp;
-                DrawXpBar(xpPercent, _template.User.Xp.Bar.Global, img);
+                DrawXpBar(xpPercent, template.User.Xp.Bar.Global, img);
                 xpPercent = guild.LevelXp / (float)guild.RequiredXp;
-                DrawXpBar(xpPercent, _template.User.Xp.Bar.Guild, img);
+                DrawXpBar(xpPercent, template.User.Xp.Bar.Guild, img);
             }
 
-            if (_template.User.Xp.Global.Show)
+            if (template.User.Xp.Global.Show)
                 img.Mutate(x => x.DrawText($"{global.LevelXp}/{global.RequiredXp}",
-                    _fonts.NotoSans.CreateFont(_template.User.Xp.Global.FontSize, FontStyle.Bold),
-                    Brushes.Solid(_template.User.Xp.Global.Color),
+                    _fonts.NotoSans.CreateFont(template.User.Xp.Global.FontSize, FontStyle.Bold),
+                    Brushes.Solid(template.User.Xp.Global.Color),
                     pen,
-                    new(_template.User.Xp.Global.Pos.X, _template.User.Xp.Global.Pos.Y)));
+                    new(template.User.Xp.Global.Pos.X, template.User.Xp.Global.Pos.Y)));
 
-            if (_template.User.Xp.Guild.Show)
+            if (template.User.Xp.Guild.Show)
                 img.Mutate(x => x.DrawText($"{guild.LevelXp}/{guild.RequiredXp}",
-                    _fonts.NotoSans.CreateFont(_template.User.Xp.Guild.FontSize, FontStyle.Bold),
-                    Brushes.Solid(_template.User.Xp.Guild.Color),
+                    _fonts.NotoSans.CreateFont(template.User.Xp.Guild.FontSize, FontStyle.Bold),
+                    Brushes.Solid(template.User.Xp.Guild.Color),
                     pen,
-                    new(_template.User.Xp.Guild.Pos.X, _template.User.Xp.Guild.Pos.Y)));
+                    new(template.User.Xp.Guild.Pos.X, template.User.Xp.Guild.Pos.Y)));
 
-            if (stats.FullGuildStats.AwardedXp != 0 && _template.User.Xp.Awarded.Show)
+            if (stats.FullGuildStats.AwardedXp != 0 && template.User.Xp.Awarded.Show)
             {
                 var sign = stats.FullGuildStats.AwardedXp > 0 ? "+ " : "";
-                var awX = _template.User.Xp.Awarded.Pos.X
+                var awX = template.User.Xp.Awarded.Pos.X
                           - (Math.Max(0, stats.FullGuildStats.AwardedXp.ToString().Length - 2) * 5);
-                var awY = _template.User.Xp.Awarded.Pos.Y;
+                var awY = template.User.Xp.Awarded.Pos.Y;
                 img.Mutate(x => x.DrawText($"({sign}{stats.FullGuildStats.AwardedXp})",
-                    _fonts.NotoSans.CreateFont(_template.User.Xp.Awarded.FontSize, FontStyle.Bold),
-                    Brushes.Solid(_template.User.Xp.Awarded.Color),
+                    _fonts.NotoSans.CreateFont(template.User.Xp.Awarded.FontSize, FontStyle.Bold),
+                    Brushes.Solid(template.User.Xp.Awarded.Color),
                     pen,
                     new(awX, awY)));
             }
 
             //ranking
-            if (_template.User.GlobalRank.Show)
+            if (template.User.GlobalRank.Show)
                 img.Mutate(x => x.DrawText(stats.GlobalRanking.ToString(),
-                    _fonts.UniSans.CreateFont(_template.User.GlobalRank.FontSize, FontStyle.Bold),
-                    _template.User.GlobalRank.Color,
-                    new(_template.User.GlobalRank.Pos.X, _template.User.GlobalRank.Pos.Y)));
+                    _fonts.UniSans.CreateFont(template.User.GlobalRank.FontSize, FontStyle.Bold),
+                    template.User.GlobalRank.Color,
+                    new(template.User.GlobalRank.Pos.X, template.User.GlobalRank.Pos.Y)));
 
-            if (_template.User.GuildRank.Show)
+            if (template.User.GuildRank.Show)
                 img.Mutate(x => x.DrawText(stats.GuildRanking.ToString(),
-                    _fonts.UniSans.CreateFont(_template.User.GuildRank.FontSize, FontStyle.Bold),
-                    _template.User.GuildRank.Color,
-                    new(_template.User.GuildRank.Pos.X, _template.User.GuildRank.Pos.Y)));
+                    _fonts.UniSans.CreateFont(template.User.GuildRank.FontSize, FontStyle.Bold),
+                    template.User.GuildRank.Color,
+                    new(template.User.GuildRank.Pos.X, template.User.GuildRank.Pos.Y)));
 
             //time on this level
 
@@ -808,21 +808,21 @@ public class XpService : INService
                 return string.Format(format, offset.Days, offset.Hours, offset.Minutes);
             }
 
-            if (_template.User.TimeOnLevel.Global.Show)
-                img.Mutate(x => x.DrawText(GetTimeSpent(stats.User.LastLevelUp, _template.User.TimeOnLevel.Format),
-                    _fonts.NotoSans.CreateFont(_template.User.TimeOnLevel.Global.FontSize, FontStyle.Bold),
-                    _template.User.TimeOnLevel.Global.Color,
-                    new(_template.User.TimeOnLevel.Global.Pos.X, _template.User.TimeOnLevel.Global.Pos.Y)));
+            if (template.User.TimeOnLevel.Global.Show)
+                img.Mutate(x => x.DrawText(GetTimeSpent(stats.User.LastLevelUp, template.User.TimeOnLevel.Format),
+                    _fonts.NotoSans.CreateFont(template.User.TimeOnLevel.Global.FontSize, FontStyle.Bold),
+                    template.User.TimeOnLevel.Global.Color,
+                    new(template.User.TimeOnLevel.Global.Pos.X, template.User.TimeOnLevel.Global.Pos.Y)));
 
-            if (_template.User.TimeOnLevel.Guild.Show)
+            if (template.User.TimeOnLevel.Guild.Show)
                 img.Mutate(x
-                    => x.DrawText(GetTimeSpent(stats.FullGuildStats.LastLevelUp, _template.User.TimeOnLevel.Format),
-                        _fonts.NotoSans.CreateFont(_template.User.TimeOnLevel.Guild.FontSize, FontStyle.Bold),
-                        _template.User.TimeOnLevel.Guild.Color,
-                        new(_template.User.TimeOnLevel.Guild.Pos.X, _template.User.TimeOnLevel.Guild.Pos.Y)));
+                    => x.DrawText(GetTimeSpent(stats.FullGuildStats.LastLevelUp, template.User.TimeOnLevel.Format),
+                        _fonts.NotoSans.CreateFont(template.User.TimeOnLevel.Guild.FontSize, FontStyle.Bold),
+                        template.User.TimeOnLevel.Guild.Color,
+                        new(template.User.TimeOnLevel.Guild.Pos.X, template.User.TimeOnLevel.Guild.Pos.Y)));
             //avatar
 
-            if (stats.User.AvatarId is not null && _template.User.Icon.Show)
+            if (stats.User.AvatarId is not null && template.User.Icon.Show)
                 try
                 {
                     var avatarUrl = stats.User.RealAvatarUrl();
@@ -836,10 +836,10 @@ public class XpService : INService
                             using (var tempDraw = Image.Load(avatarData))
                             {
                                 tempDraw.Mutate(x => x
-                                                     .Resize(_template.User.Icon.Size.X, _template.User.Icon.Size.Y)
-                                                     .ApplyRoundedCorners(Math.Max(_template.User.Icon.Size.X,
-                                                                              _template.User.Icon.Size.Y)
-                                                                          / 2));
+                                                     .Resize(template.User.Icon.Size.X, template.User.Icon.Size.Y)
+                                                     .ApplyRoundedCorners(Math.Max(template.User.Icon.Size.X,
+                                                                              template.User.Icon.Size.Y)
+                                                                          / 2.0f));
                                 await using (var stream = tempDraw.ToStream())
                                 {
                                     data = stream.ToArray();
@@ -851,11 +851,11 @@ public class XpService : INService
                     }
 
                     using var toDraw = Image.Load(data);
-                    if (toDraw.Size() != new Size(_template.User.Icon.Size.X, _template.User.Icon.Size.Y))
-                        toDraw.Mutate(x => x.Resize(_template.User.Icon.Size.X, _template.User.Icon.Size.Y));
+                    if (toDraw.Size() != new Size(template.User.Icon.Size.X, template.User.Icon.Size.Y))
+                        toDraw.Mutate(x => x.Resize(template.User.Icon.Size.X, template.User.Icon.Size.Y));
 
                     img.Mutate(x => x.DrawImage(toDraw,
-                        new Point(_template.User.Icon.Pos.X, _template.User.Icon.Pos.Y),
+                        new Point(template.User.Icon.Pos.X, template.User.Icon.Pos.Y),
                         1));
                 }
                 catch (Exception ex)
@@ -864,9 +864,9 @@ public class XpService : INService
                 }
 
             //club image
-            if (_template.Club.Icon.Show) await DrawClubImage(img, stats);
+            if (template.Club.Icon.Show) await DrawClubImage(img, stats);
 
-            img.Mutate(x => x.Resize(_template.OutputSize.X, _template.OutputSize.Y));
+            img.Mutate(x => x.Resize(template.OutputSize.X, template.OutputSize.Y));
             return ((Stream)img.ToStream(imageFormat), imageFormat);
         });
 
@@ -880,7 +880,7 @@ public class XpService : INService
 
         var length = info.Length * percent;
 
-        float x3 = 0, x4 = 0, y3 = 0, y4 = 0;
+        float x3, x4, y3, y4;
 
         if (info.Direction == XpTemplateDirection.Down)
         {
@@ -936,11 +936,10 @@ public class XpService : INService
                         using (var tempDraw = Image.Load(imgData))
                         {
                             tempDraw.Mutate(x => x
-                                                 .Resize(_template.Club.Icon.Size.X, _template.Club.Icon.Size.Y)
-                                                 .ApplyRoundedCorners(Math.Max(_template.Club.Icon.Size.X,
-                                                                          _template.Club.Icon.Size.Y)
+                                                 .Resize(template.Club.Icon.Size.X, template.Club.Icon.Size.Y)
+                                                 .ApplyRoundedCorners(Math.Max(template.Club.Icon.Size.X,
+                                                                          template.Club.Icon.Size.Y)
                                                                       / 2.0f));
-                            ;
                             await using (var tds = tempDraw.ToStream())
                             {
                                 data = tds.ToArray();
@@ -952,12 +951,12 @@ public class XpService : INService
                 }
 
                 using var toDraw = Image.Load(data);
-                if (toDraw.Size() != new Size(_template.Club.Icon.Size.X, _template.Club.Icon.Size.Y))
-                    toDraw.Mutate(x => x.Resize(_template.Club.Icon.Size.X, _template.Club.Icon.Size.Y));
+                if (toDraw.Size() != new Size(template.Club.Icon.Size.X, template.Club.Icon.Size.Y))
+                    toDraw.Mutate(x => x.Resize(template.Club.Icon.Size.X, template.Club.Icon.Size.Y));
 
                 img.Mutate(x => x.DrawImage(
                     toDraw,
-                    new Point(_template.Club.Icon.Pos.X, _template.Club.Icon.Pos.Y),
+                    new Point(template.Club.Icon.Pos.X, template.Club.Icon.Pos.Y),
                     1));
             }
             catch (Exception ex)

src/NadekoBot/Modules/Xp/_Common/XpTemplate.cs

@@ -82,7 +82,7 @@ public class XpTemplateUser
     public XpTemplateText GlobalRank { get; set; }
     public XpTemplateText GuildRank { get; set; }
     public XpTemplateTimeOnLevel TimeOnLevel { get; set; }
-    public XpTemplateXP Xp { get; set; }
+    public XpTemplateXp Xp { get; set; }
 }
 
 public class XpTemplateTimeOnLevel
@@ -108,7 +108,7 @@ public class XpTemplateText
     public XpTemplatePos Pos { get; set; }
 }
 
-public class XpTemplateXP
+public class XpTemplateXp
 {
     public XpTemplateXpBar Bar { get; set; }
     public XpTemplateText Global { get; set; }

src/NadekoBot/Services/DbService.cs

@@ -8,8 +8,8 @@ namespace NadekoBot.Services;
 
 public class DbService
 {
-    private readonly DbContextOptions<NadekoContext> options;
-    private readonly DbContextOptions<NadekoContext> migrateOptions;
+    private readonly DbContextOptions<NadekoContext> _options;
+    private readonly DbContextOptions<NadekoContext> _migrateOptions;
 
     public DbService(IBotCredentials creds)
     {
@@ -20,19 +20,19 @@ public class DbService
 
         var optionsBuilder = new DbContextOptionsBuilder<NadekoContext>();
         optionsBuilder.UseSqlite(builder.ToString());
-        options = optionsBuilder.Options;
+        _options = optionsBuilder.Options;
 
         optionsBuilder = new();
         optionsBuilder.UseSqlite(builder.ToString());
-        migrateOptions = optionsBuilder.Options;
+        _migrateOptions = optionsBuilder.Options;
     }
 
     public void Setup()
     {
-        using var context = new NadekoContext(options);
+        using var context = new NadekoContext(_options);
         if (context.Database.GetPendingMigrations().Any())
         {
-            var mContext = new NadekoContext(migrateOptions);
+            var mContext = new NadekoContext(_migrateOptions);
             mContext.Database.Migrate();
             mContext.SaveChanges();
             mContext.Dispose();
@@ -44,7 +44,7 @@ public class DbService
 
     private NadekoContext GetDbContextInternal()
     {
-        var context = new NadekoContext(options);
+        var context = new NadekoContext(_options);
         context.Database.SetCommandTimeout(60);
         var conn = context.Database.GetDbConnection();
         conn.Open();

src/NadekoBot/Services/IGoogleApiService.cs

@@ -3,7 +3,7 @@ using Google.Apis.Customsearch.v1.Data;
 
 namespace NadekoBot.Services;
 
-public interface IGoogleApiService : INService
+public interface IGoogleApiService
 {
     IReadOnlyDictionary<string, string> Languages { get; }