using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;

namespace Tango.Explorer
{
    public class ExplorerFolderItem : ExplorerItem
    {
        private static List<String> extensions = ExplorerFileDefinition.GetSupportedExtensions().Select(x => x.Replace(".", "")).ToList();

        public List<ExplorerItem> Items { get; set; }

        public ExplorerFolderItem()
        {
            Items = new List<ExplorerItem>();
        }

        public static ExplorerFolderItem LoadFromPath(String path, String filter)
        {
            ExplorerFolderItem folderItem = new ExplorerFolderItem();

            folderItem.Path = path;
            folderItem.Icon = ExplorerFileDefinition.Folder.Icon;
            folderItem.Name = System.IO.Path.GetFileName(path);

            foreach (var folder in new DirectoryInfo(path).GetDirectories().Where(x => !x.Attributes.HasFlag(FileAttributes.Hidden)))
            {
                ExplorerFolderItem fItem = new ExplorerFolderItem();
                fItem.Path = folder.FullName;
                fItem.Icon = ExplorerFileDefinition.Folder.Icon;
                fItem.Name = System.IO.Path.GetFileName(folder.FullName);
                folderItem.Items.Add(fItem);
            }

            foreach (var file in Directory.GetFiles(path, "*.*").Where(f => extensions.Contains(f.Split('.').Last().ToLower())).ToArray())
            {
                if (filter == null || filter.ToLower().Replace("*", "").Replace(";", "").Split('|').Contains(System.IO.Path.GetExtension(file).ToLower()))
                {
                    folderItem.Items.Add(ExplorerFileItem.LoadFromPath(file));
                }
            }

            return folderItem;
        }

        public String GetParentPath()
        {
            var parent = new DirectoryInfo(Path).Parent;
            var parentPath = parent != null ? parent.FullName : null;
            return parentPath;
        }
    }
}