XiangTan_DM/DM_Weight/ViewModels/MainWindowViewModel.cs

using DM_Weight.Finger;
using DM_Weight.HIKVISION;
using DM_Weight.msg;
using DM_Weight.Port;
using DM_Weight.util;
using DM_Weight.Views;
using log4net;
using log4net.Repository.Hierarchy;
using MaterialDesignThemes.Wpf;
using Prism.Commands;
using Prism.Events;
using Prism.Mvvm;
using Prism.Regions;
using ScreenRecorderLib;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;
using Unity;

namespace DM_Weight.ViewModels
{
    internal class MainWindowViewModel : BindableBase
    {
        #region 录屏相关
        public Recorder _recorder;
        private string _outputFolder;
        private string _outputFilePath;
        public static MainWindowViewModel vm;
        #endregion
        private readonly ILog logger = LogManager.GetLogger(typeof(MainWindowViewModel));

        private string _title = "Prism App";   //标题

        private ISnackbarMessageQueue _snackbarMessageQueue = new SnackbarMessageQueue(TimeSpan.FromSeconds(3));

        private SolidColorBrush _colorBrush;


        //private PortUtil _portUtil;

        private ScreenUtil _screenUtil;

        public SolidColorBrush Background
        {
            get => _colorBrush;
            set => SetProperty(ref _colorBrush, value);
        }

        public ISnackbarMessageQueue SnackbarMessageQueue
        {
            get => _snackbarMessageQueue;
            set => SetProperty(ref _snackbarMessageQueue, value);
        }
        public string Title
        {
            get { return _title; }
            set { SetProperty(ref _title, value); }
        }


        IEventAggregator eventAggregator;


        //public MainWindowViewModel(IEventAggregator eventAggregator, PortUtil portUtil, ScreenUtil screenUtil)
        //{
        //    _portUtil = portUtil;
        //    this.eventAggregator = eventAggregator;
        //    this.eventAggregator.GetEvent<SnackbarEvent>().Subscribe(doMyPrismEvent2);
        //    _screenUtil = screenUtil;
        //}
        private FingerprintUtil _fingerprintUtil;
        IRegionManager _regionManager;
        IUnityContainer _container;
        //private CHKFunction _cHKFunction;
        public MainWindowViewModel(IRegionManager regionManager, IUnityContainer container, IEventAggregator eventAggregator, FingerprintUtil fingerprintUtil, ScreenUtil screenUtil)
        {
            vm = this;
            //_portUtil = portUtil;
            this.eventAggregator = eventAggregator;
            this.eventAggregator.GetEvent<SnackbarEvent>().Subscribe(doMyPrismEvent2);
            this.eventAggregator.GetEvent<PrintScreenEvent>().Subscribe(PrintScreen);
            _screenUtil = screenUtil;
            _fingerprintUtil = fingerprintUtil;
            _regionManager = regionManager;
            _container = container;
            //_cHKFunction = cHKFunction;
            System.Windows.Application.Current.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Send, new Action(() =>
            {
                if (App.DbConnectionFail)
                {
                    _regionManager.RequestNavigate("MainRegion", "EmergencyWindow");
                }
                else
                {
                    _container.RegisterType<object, LoginWindow>("LoginWindow");
                    _regionManager.RequestNavigate("MainRegion", "LoginWindow");
                }

            }));
        }

        void doMyPrismEvent2(AlertMsg msg)
        {
            switch (msg.Type)
            {
                case MsgType.INFO:
                    this.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#00e676"));
                    break;
                case MsgType.ERROR:
                    this.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#b71c1c"));
                    break;
                default:
                    this.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#00e676"));
                    break;
            }
            SnackbarMessageQueue.Enqueue(msg.Message);
        }

        #region 录屏
        /// <summary>
        /// 录屏事件
        /// </summary>
        /// <param name="type">0停止录屏；1开始录屏；2退出软件清进程</param>
        void PrintScreen(int type)
        {
            if(type==0)
            {
                StopPrintScreen();
                //删除7天前的录屏文件

                if (Directory.Exists(_outputFolder))
                {
                    var files = Directory.GetFiles(_outputFolder);
                    foreach (var file in files)
                    {
                        var fileInfo = new FileInfo(file);
                        if (fileInfo.CreationTime < DateTime.Now.AddDays(-7))
                        {
                            try
                            {
                                fileInfo.Delete();
                            }
                            catch (Exception ex)
                            {
                                logger.Error($"删除录屏文件失败: {ex.Message}");
                            }
                        }
                    }
                }
            }
            else if (type == 1)
            {
                StartPrintScreen();
            }
            else if (type == 2)
            {
                _recorder?.Dispose();
            }
        }
        #endregion
        void StopPrintScreen()
        {

            //退出登录结束录屏
            _recorder?.Stop();
        }
        //录屏
        void StartPrintScreen()
        {

            // 创建输出目录
            _outputFolder = Path.Combine(AppDomain.CurrentDomain.BaseDirectory + "Log", "ScreenRecordings");
            if (!Directory.Exists(_outputFolder))
            {
                Directory.CreateDirectory(_outputFolder);
            }
            // 生成输出文件名
            string timestamp = DateTime.Now.ToString("yyyyMMdd_HHmmss");
            _outputFilePath = Path.Combine(_outputFolder, $"{timestamp}.mp4");

            // 设置录制选项
            var options = new RecorderOptions();

            // 创建录制器实例
            _recorder = Recorder.CreateRecorder(options);

            // 设置事件处理
            _recorder.OnRecordingComplete += Recorder_OnRecordingComplete;
            _recorder.OnRecordingFailed += Recorder_OnRecordingFailed;

            // 开始录制
            _recorder.Record(_outputFilePath);
        }
        //录制失败
        private void Recorder_OnRecordingFailed(object sender, RecordingFailedEventArgs e)
        {
            logger.Info($"录制失败: {e.Error}");
        }
        //录制完成
        private void Recorder_OnRecordingComplete(object sender, RecordingCompleteEventArgs e)
        {
            logger.Info($"录制完成: {e.FilePath}");
        }
    }
}