Mystify/Mystify/MainModel.cs

// Author: Gockner, Simon
// 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;
using Mystify.Settings.Interfaces;

namespace Mystify
{
    public class MainModel : IDisposable
    {
        private readonly IDriverLoader _driverLoader;
        private readonly IDeviceFactory _deviceFactory;
        private readonly IControllableCollectorFactory _controllableCollectorFactory;
        
        private readonly ISettings _settings;

        private IDevice? _device;
        private IControllableCollector? _controllableCollector;
        
        public MainModel(IDriverLoaderFactory driverLoaderFactory,
            ISettingsManager settingsManager,
            IDeviceFactory deviceFactory,
            IControllableCollectorFactory controllableCollectorFactory,
            IControllableFactory controllableFactory)
        {
            _driverLoader = driverLoaderFactory.Create();
            _deviceFactory = deviceFactory;
            _controllableCollectorFactory = controllableCollectorFactory;
            ControllableFactory = controllableFactory;

            _settings = settingsManager.Settings;
            
            if (!string.IsNullOrEmpty(_settings.LastDriverPath))
                LoadDriverAndDevice(_settings.LastDriverPath);
        }

        public string? DeviceName => _device?.Name;
        public List<IChannel>? Channels => _device?.Channels;
        public List<IControllable>? Controllables => _controllableCollector?.Controllables;
        
        public bool UseMidiView { get; set; }
        
        public IControllableFactory ControllableFactory { get; }

        public void LoadDriverAndDevice(string driverPath)
        {
            _device?.StopCommunication();

            IDriver? driver = _driverLoader.Load(driverPath);

            if (driver == null)
                throw new Exception("Driver could not be loaded.");

            _settings.LastDriverPath = driverPath;
            
            _controllableCollector = _controllableCollectorFactory.Create();
            _device = _deviceFactory.Create(driver, _controllableCollector);
            
            _device.StartCommunication(UseMidiView);
        }

        public void Dispose() => _device?.Dispose();
    }
}