using Aurora.Api;
using Aurora.View;
using System.Collections.ObjectModel;
using System.Windows;
using System.Windows.Input;
using System.Windows.Forms;
using VisionCommon;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System;
using System.Threading;
using System.Threading.Tasks;
using VisionSequence.Pattern;

namespace MilUI {
    public class SelectedImagePath {
        public string ImagePath { get; set; }
        public SelectedImagePath(string imagePath) {
            ImagePath = imagePath;
        }
    }
    public class VisionImageTestSettingViewModel : NotifyPropertyChangedBase {

        private ObservableCollection<SelectedImagePath> imagePaths = new ObservableCollection<SelectedImagePath>();
        public ObservableCollection<SelectedImagePath> ImagePaths { get => imagePaths; set => SetProperty(ref imagePaths, value); }

        private readonly Logger _Logger = new Logger(typeof(VisionImageTestSettingViewModel).Name);
        private FovInfo _FovInfo;
        private PatternInfo _PatternInfo;
        private Action<PatternInfo> _GrabFindFunc;
        private eVisionTestType _VisionTestType;
        private string[] _ImageExtensions = { ".bmp", ".png", ".jpg", ".jpeg" };

        public VisionImageTestSettingViewModel(FovInfo fovInfo, eVisionTestType visionTestType, ObservableCollection<SelectedImagePath> imagePaths, PatternInfo patternInfo = null) {
            _FovInfo = fovInfo;
            _VisionTestType = visionTestType;
            if (patternInfo != null) {
                _PatternInfo = patternInfo;
            }
            ImagePaths = imagePaths;
        }

        public void Clear() {
            ImagePaths.Clear();
        }

        public void GetFolder() {
            var openFolderDialog = new FolderBrowserDialog();
            if (openFolderDialog.ShowDialog() == DialogResult.OK) {
                var folderPath = openFolderDialog.SelectedPath;
                GetImagePathInFolder(folderPath);
            }
        }

        public void GetImages() {
            var openFileDialog = new OpenFileDialog();
            openFileDialog.Multiselect = true;
            openFileDialog.Filter = "Image files (*.png;*.bmp;*.jpeg;*.jpg)|*.png;*.bmp;*.jpeg;*.jpg|All files (*.*)|*.*";
            openFileDialog.InitialDirectory = ImagePathManager.GetRootDirPath();
            if (openFileDialog.ShowDialog() == DialogResult.OK) {
                foreach(var path in openFileDialog.FileNames) {
                    ImagePaths.Add(new SelectedImagePath(path));
                }
            }
        }

        public void GetImagePathInFolder(string folderPath) {
            var imagePaths = Directory.GetFiles(folderPath)
             .Where(file => _ImageExtensions.Contains(Path.GetExtension(file).ToLower()))
             .ToList();

            foreach(var path in imagePaths) {
                ImagePaths.Add(new SelectedImagePath(path));
            }
        }


        public bool IsImageFile(string path) {
            string extension = Path.GetExtension(path).ToLower();

            return Array.Exists(_ImageExtensions, ext => ext == extension);
        }

    }
}