feat: upgrade to .NET 6, refactor everything

PluralKit.Core/Database/Wrappers/PKTransaction.cs

@@ -1,31 +1,28 @@
-using System;
 using System.Data;
 using System.Data.Common;
-using System.Threading;
-using System.Threading.Tasks;
 
 using Npgsql;
 
-namespace PluralKit.Core
+namespace PluralKit.Core;
+
+internal class PKTransaction: DbTransaction, IPKTransaction
 {
-    internal class PKTransaction: DbTransaction, IPKTransaction
+    public PKTransaction(NpgsqlTransaction inner)
     {
-        public NpgsqlTransaction Inner { get; }
-
-        public PKTransaction(NpgsqlTransaction inner)
-        {
-            Inner = inner;
-        }
-
-        public override void Commit() => throw SyncError(nameof(Commit));
-        public override Task CommitAsync(CancellationToken ct = default) => Inner.CommitAsync(ct);
-
-        public override void Rollback() => throw SyncError(nameof(Rollback));
-        public override Task RollbackAsync(CancellationToken ct = default) => Inner.RollbackAsync(ct);
-
-        protected override DbConnection DbConnection => Inner.Connection;
-        public override IsolationLevel IsolationLevel => Inner.IsolationLevel;
-
-        private static Exception SyncError(string caller) => throw new Exception($"Executed synchronous IDbTransaction function {caller}!");
+        Inner = inner;
     }
+
+    public NpgsqlTransaction Inner { get; }
+
+    protected override DbConnection DbConnection => Inner.Connection;
+
+    public override void Commit() => throw SyncError(nameof(Commit));
+    public override Task CommitAsync(CancellationToken ct = default) => Inner.CommitAsync(ct);
+
+    public override void Rollback() => throw SyncError(nameof(Rollback));
+    public override Task RollbackAsync(CancellationToken ct = default) => Inner.RollbackAsync(ct);
+    public override IsolationLevel IsolationLevel => Inner.IsolationLevel;
+
+    private static Exception SyncError(string caller) =>
+        throw new Exception($"Executed synchronous IDbTransaction function {caller}!");
 }