Most services are implemented as command/queries

Code cleanup

ModernKeePass.Application/Security/Commands/GenerateKeyFile/GenerateKeyFileCommand.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Threading.Tasks;
+using MediatR;
+using ModernKeePass.Application.Common.Interfaces;
+
+namespace ModernKeePass.Application.Security.Commands.GenerateKeyFile
+{
+    public class GenerateKeyFileCommand : IRequest
+    {
+        public string KeyFilePath { get; set; }
+        public bool AddAdditionalEntropy { get; set; }
+
+        public class GenerateKeyFileCommandHandler : IAsyncRequestHandler<GenerateKeyFileCommand>
+        {
+            private readonly IPasswordProxy _security;
+            private readonly IFileProxy _file;
+
+            public GenerateKeyFileCommandHandler(IPasswordProxy security, IFileProxy file)
+            {
+                _security = security;
+                _file = file;
+            }
+
+            public async Task Handle(GenerateKeyFileCommand message)
+            {
+                byte[] entropy = null;
+                if (message.AddAdditionalEntropy)
+                {
+                    entropy = new byte[10];
+                    var random = new Random();
+                    random.NextBytes(entropy);
+                }
+                var keyFile = _security.GenerateKeyFile(entropy);
+                await _file.WriteBinaryContentsToFile(message.KeyFilePath, keyFile);
+            }
+        }
+    }
+}

ModernKeePass.Application/Security/Commands/GeneratePassword/GeneratePasswordCommand.cs

@@ -0,0 +1,48 @@
+using MediatR;
+using ModernKeePass.Application.Common.Interfaces;
+using ModernKeePass.Domain.Dtos;
+
+namespace ModernKeePass.Application.Security.Commands.GeneratePassword
+{
+    public class GeneratePasswordCommand: IRequest<string>
+    {
+        public int PasswordLength { get; set; }
+        public bool UpperCasePatternSelected { get; set; }
+        public bool LowerCasePatternSelected { get; set; }
+        public bool DigitsPatternSelected { get; set; }
+        public bool SpecialPatternSelected { get; set; }
+        public bool MinusPatternSelected { get; set; }
+        public bool UnderscorePatternSelected { get; set; }
+        public bool SpacePatternSelected { get; set; }
+        public bool BracketsPatternSelected { get; set; }
+        public string CustomChars { get; set; }
+
+        public class GeneratePasswordCommandHandler: IRequestHandler<GeneratePasswordCommand, string>
+        {
+            private readonly IPasswordProxy _security;
+
+            public GeneratePasswordCommandHandler(IPasswordProxy security)
+            {
+                _security = security;
+            }
+
+            public string Handle(GeneratePasswordCommand message)
+            {
+                var options = new PasswordGenerationOptions
+                {
+                    PasswordLength = message.PasswordLength,
+                    BracketsPatternSelected = message.BracketsPatternSelected,
+                    CustomChars = message.CustomChars,
+                    DigitsPatternSelected = message.DigitsPatternSelected,
+                    LowerCasePatternSelected = message.LowerCasePatternSelected,
+                    MinusPatternSelected = message.MinusPatternSelected,
+                    SpacePatternSelected = message.SpacePatternSelected,
+                    SpecialPatternSelected = message.SpecialPatternSelected,
+                    UnderscorePatternSelected = message.UnderscorePatternSelected,
+                    UpperCasePatternSelected = message.UpperCasePatternSelected
+                };
+                return _security.GeneratePassword(options);
+            }
+        }
+    }
+}