using System.Windows.Input;
using VideoConcat.Models;
using MessageBox = System.Windows.MessageBox;
using VideoConcat.Common.Tools;
using System.IO;
using Microsoft.Expression.Drawing.Core;
using FFMpegCore;
using FFMpegCore.Enums;
using static VideoConcat.Models.VideoModel;
using System.Windows.Threading;
using System.Windows;
using VideoConcat.Services.Video;

namespace VideoConcat.ViewModels
{
    public class ExtractWindowViewModel
    {
        private ExtractWindowModel _extractWindowModel;

        public List<ConcatVideo> ConcatVideos { get; set; } = [];

        public ExtractWindowModel ExtractWindowModel
        {
            get { return _extractWindowModel; }
            set
            {
                _extractWindowModel = value;
            }
        }



        public ExtractWindowViewModel()
        {
            ExtractWindowModel = new ExtractWindowModel
            {
                CanStart = false,
                IsStart = false,
                IsCanOperate = true,

                BtnOpenFolderCommand = new Command()
                {
                    DoExcue = obj =>
                    {
                        FolderBrowserDialog folderBrowserDialog = new();
                        if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
                        {
                            ExtractWindowModel.FolderPath = folderBrowserDialog.SelectedPath;
                            LogUtils.Info($"获取视频文件夹,视频路径:{ExtractWindowModel.FolderPath}");
                            ListFolder();
                        }
                    }

                },

                BtnStartVideoConcatCommand = new Command()
                {
                    DoExcue = obj =>
                    {
                        ExtractWindowModel.HelpInfo = "";
                        Task.Run(action: () =>
                        {
                            ExtractWindowModel.videos.ForEach(async (video) =>
                            {
                                // 实例化并调用
                                var remover = new VideoProcess();
                                // 删除4秒处的帧（需根据实际帧位置调整）
                                string _tmpPath = Path.GetDirectoryName(video) ?? "";
                                string _tmpFileName = $"抽帧视频-{Path.GetFileName(video)}";
                                await VideoProcess.RemoveFrameRandomeAsync(video, $"{_tmpPath}\\{_tmpFileName}");
                            });
                        });

                        ExtractWindowModel.HelpInfo = "全部完成!";
                    }
                }
            };
        }

        private void ListFolder()
        {
            DirectoryInfo dir = new(ExtractWindowModel.FolderPath);
            try
            {
                DirectoryInfo dirD = dir as DirectoryInfo;

                //获取文件夹下所有视频文件

                ExtractWindowModel.videos = Directory.GetFiles(dirD.FullName, "*.mp4");
                ExtractWindowModel.SetCanStart();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return;
            }
        }
    }
}