- add load driver functionality

Mystify/App.axaml.cs

@@ -31,10 +31,10 @@ namespace Mystify
             _kernel = bootstrapper.BootstrapKernel();
 
             MainModel mainModel = _kernel.Resolve<MainModel>();
-            _mainWindow = new MainWindow
+            _mainWindow = new MainWindow();
-            {
+
-                DataContext = new MainWindowViewModel(mainModel)
+            MainWindowViewModel mainWindowViewModel = new (mainModel, _mainWindow);
-            };
+            _mainWindow.DataContext = mainWindowViewModel;
 
             if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktopStyleApplicationLifetime)
             {

Mystify/MainModel.cs

@@ -2,26 +2,46 @@
 // Created: 2021-04-09
 // Copyright(c) 2021 SimonG. All Rights Reserved.
 
+using System;
 using System.Collections.Generic;
 using Lib.Audio.Factories;
 using Lib.Audio.Interfaces;
+using Lib.Driver.Factories;
+using Lib.Driver.Interfaces;
 
 namespace Mystify
 {
     public class MainModel
     {
-        private readonly IDevice _device;
+        private readonly IDriverLoader _driverLoader;
-        private readonly IControllableCollector _controllableCollector;
+        private readonly IDeviceFactory _deviceFactory;
+        private readonly IControllableCollectorFactory _controllableCollectorFactory;
 
-        public MainModel(IDeviceFactory deviceFactory, IControllableCollectorFactory controllableCollectorFactory)
+        private IDevice? _device;
+        private IControllableCollector? _controllableCollector;
+        
+        public MainModel(IDriverLoaderFactory driverLoaderFactory, IDeviceFactory deviceFactory, IControllableCollectorFactory controllableCollectorFactory)
+        {
+            _driverLoader = driverLoaderFactory.Create();
+            _deviceFactory = deviceFactory;
+            _controllableCollectorFactory = controllableCollectorFactory;
+        }
+
+        public List<IChannel>? Channels => _device?.Channels;
+        public List<IControllable>? Controllables => _controllableCollector?.Controllables;
+        public string? DeviceName => _device?.Name;
+
+        public void LoadDriverAndDevice(string driverPath)
         {
-            _device = deviceFactory.Create();
+            IDriver? driver = _driverLoader.Load(driverPath);
-            _controllableCollector = controllableCollectorFactory.Create();
+
+            if (driver == null)
+                throw new Exception("Driver could not be loaded.");
+            
+            _device = _deviceFactory.Create(driver);
+            _controllableCollector = _controllableCollectorFactory.Create();
             
             _device.StartCommunication();
         }
-
-        public List<IChannel> Channels => _device.Channels;
-        public List<IControllable> Controllables => _controllableCollector.Controllables;
     }
 }

Mystify/ViewModels/MainWindowViewModel.cs

@@ -5,7 +5,10 @@
 using System;
 using System.Collections.Generic;
 using System.Windows.Input;
+using Avalonia.Controls;
 using Lib.Audio.Interfaces;
+using Lib.Driver;
+using Mystify.Views;
 using ReactiveUI;
 
 namespace Mystify.ViewModels
@@ -13,6 +16,7 @@ namespace Mystify.ViewModels
     public class MainWindowViewModel : ViewModelBase
     {
         private readonly MainModel? _mainModel;
+        private readonly MainWindow? _mainWindow;
         
         public MainWindowViewModel()
         {
@@ -20,7 +24,11 @@ namespace Mystify.ViewModels
                 throw new InvalidOperationException("Constructor is for design time usage only.");
         }
         
-        public MainWindowViewModel(MainModel mainModel) => _mainModel = mainModel;
+        public MainWindowViewModel(MainModel mainModel, MainWindow? mainWindow)
+        {
+            _mainModel = mainModel;
+            _mainWindow = mainWindow;
+        }
 
         public List<IChannel>? Channels => _mainModel?.Channels;
         public List<IControllable>? Controllables => _mainModel?.Controllables;
@@ -28,6 +36,19 @@ namespace Mystify.ViewModels
         public IChannel? SelectedChannel { get; set; }
         public IControllable? SelectedControllable { get; set; }
 
+        public string SelectedDeviceText => $"Selected Device: {_mainModel?.DeviceName ?? "-"}";
+
+        public ICommand SelectDriverCommand => ReactiveCommand.CreateFromTask(async () =>
+        {
+            OpenFileDialog openFileDialog = new()
+            {
+                Filters = new List<FileDialogFilter> {new() {Extensions = new List<string> {DriverLoader.DRIVER_FILE_EXTENSION}, Name = "Mystify Driver"}}
+            };
+            
+            await openFileDialog.ShowAsync(_mainWindow);
+
+            _mainModel?.LoadDriverAndDevice(openFileDialog.Directory);
+        });
         public ICommand AllocateControllableCommand =>
             ReactiveCommand.Create(() =>
             {

Mystify/Views/MainWindow.axaml

@@ -14,7 +14,12 @@
         <vm:MainWindowViewModel/>
     </Design.DataContext>
 
-    <StackPanel>
+    <StackPanel Orientation="Vertical">
+        <StackPanel Orientation="Horizontal" Margin="10">
+            <Button Margin="5" Content="Select MIDI Device Driver" Command="{Binding SelectDriverCommand}"/>
+            <TextBlock Text="{Binding SelectedDeviceText}" Margin="10,5"/>
+        </StackPanel>
+        
         <StackPanel Orientation="Horizontal" Margin="10">
             <TextBlock Text="Select Channel:" Margin="12"/>
             <ComboBox Items="{Binding Channels}"