using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.Core.DI;
using Tango.FSE.Common;
using Tango.FSE.Common.Storage;

namespace Tango.FSE.Procedures.Dialogs
{
    public class SelectFolderDialogViewVM : FSEDialogViewVM
    {
        [TangoInject]
        protected IStorageProvider StorageProvider { get; set; }

        private String _selectedFolder;
        public String SelectedFolder
        {
            get { return _selectedFolder; }
            set { _selectedFolder = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
        }

        public String Message { get; set; }

        public RelayCommand BrowseCommand { get; set; }

        public SelectFolderDialogViewVM(String message)
        {
            TangoIOC.Default.Inject(this);

            AutoMode = true;
            Message = message;

            BrowseCommand = new RelayCommand(BrowseForFolder);
        }

        private async void BrowseForFolder()
        {
            var result = await StorageProvider.SelectFolder("Select folder");

            if (result.Confirmed)
            {
                SelectedFolder = result.SelectedItem;
            }
        }

        protected override bool CanOK()
        {
            return base.CanOK() && SelectedFolder != null;
        }

        protected override void Cancel()
        {
            SelectedFolder = null;
            base.Cancel();
        }
    }
}