-T5-Elektrifikatsiya/src/Elektrifikatsiya/Elektrifikatsiya/Services/Implementations/EventService.cs

using Elektrifikatsiya.Models;

using System.Reflection;

namespace Elektrifikatsiya.Services.Implementations;

public class EventService : IEventService
{
	public event EventHandler<EventServiceEventArgs>? OnEventCalled;

	public List<Event> Events { get; } = new();

	public EventService(IDeviceStatusService deviceStatusService, IDeviceManagmentService deviceManagmentService)
	{
		List<Device> deviceList = deviceStatusService.GetDevices().ValueOrDefault.Select(x => x.CopyDevice()).ToList();

		deviceStatusService.OnDeviceStatusChanged += (_, e) =>
		{
			bool newDevice = true;
			Device currentDevice = deviceManagmentService.GetDevice(e.MacAddress).ValueOrDefault;

			for (int i = 0; i < deviceList.Count; i++)
			{
				if (deviceList[i].MacAddress == currentDevice.MacAddress)
				{
					PropertyInfo[] properties = typeof(Device).GetProperties();

					foreach (PropertyInfo property in properties)
					{
						object? currentvalue = property.GetValue(deviceList[i], null);
						object? newvalue = property.GetValue(currentDevice, null);
						if (newvalue is not null && !newvalue?.ToString()?.Equals(currentvalue?.ToString()) == true)
						{
							string eventName = $"Plug {deviceList[i].Name} changed: {property.Name}";
							string description = $"Changed {property.Name} of plug [{currentvalue}] to [{newvalue}]";
							DateTime dateTime = DateTime.Now;

							Event newEvent = new Event(eventName, description, dateTime, currentDevice);
							Events.Insert(0, newEvent);
							OnEventCalled?.Invoke(this, new EventServiceEventArgs(newEvent));
						}
					}
					deviceList[i].OverwiteDevice(currentDevice);
					newDevice = false; break;
				}
			}
			if (newDevice)
			{
				deviceList.Add(deviceManagmentService.GetDevice(e.MacAddress).ValueOrDefault);
			}
		};
	}
}