CameraRuntimeState.cs

이 파일의 문서화 페이지로 가기

using System.ComponentModel;
using System.Runtime.CompilerServices;
 
namespace DreamineVMS.Models;

public sealed class CameraRuntimeState : INotifyPropertyChanged
{
    private CameraConnectionState _state = CameraConnectionState.Disconnected;
    private string _lastMessage = "Ready.";
    private DateTimeOffset _lastUpdated = DateTimeOffset.Now;
    private string? _lastError;
    private int _restartCount;

    public event PropertyChangedEventHandler? PropertyChanged;

    public required string CameraId { get; init; }

    public CameraConnectionState State
    {
        get => _state;
        set => SetField(ref _state, value);
    }

    public string LastMessage
    {
        get => _lastMessage;
        set => SetField(ref _lastMessage, value);
    }

    public DateTimeOffset LastUpdated
    {
        get => _lastUpdated;
        set => SetField(ref _lastUpdated, value);
    }

    public string? LastError
    {
        get => _lastError;
        set => SetField(ref _lastError, value);
    }

    public int RestartCount
    {
        get => _restartCount;
        set => SetField(ref _restartCount, value);
    }

    private void SetField<T>(ref T field, T value, [CallerMemberName] string? propertyName = null)
    {
        if (EqualityComparer<T>.Default.Equals(field, value))
        {
            return;
        }
 
        field = value;
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}