using System.ComponentModel;
using Yw.Untity;

namespace ISupply.WinFrm.Main
{
    public partial class RegionTreeListLookUpEdit : DevExpress.XtraEditors.XtraUserControl
    {
        public RegionTreeListLookUpEdit()
        {
            InitializeComponent();
            this.treeListLookUpEdit1.EditValueChanged += treeListLookUpEdit1_EditValueChanged;
            this.treeListLookUpEdit1TreeList.InitialDefaultSettings();
            this.treeListLookUpEdit1TreeList.SelectImageList = ImageLib.Lib;
            this.treeListLookUpEdit1TreeList.OptionsView.ShowIndicator = false;
            this.treeListLookUpEdit1.Properties.PopupFormSize = new System.Drawing.Size(200, 400);
        }

        public class CurrentViewModel : Model.Region
        {
            public CurrentViewModel() { }
            public CurrentViewModel(Model.Region rhs) : base(rhs)
            {
                this.ParentID = TreeParentIdsHelper.GetLastParentID(rhs.ParentIds);
                this.ImageIndex = ImageLib.GetRegionTypeImageIndex(rhs.Type);
            }

            public long ParentID { get; set; }
            public int ImageIndex { get; set; }
        }

        /// <summary>
        /// 选择项
        /// </summary>
        public Model.Region Selected { get => _selected; }
        private Model.Region _selected { get; set; }

        /// <summary>
        /// 选择项变换
        /// </summary>
        public event Action<Model.Region> SelectedChangedEvent;
        private BindingList<CurrentViewModel> _allBindingList { get; set; }


        /// <summary>
        /// 绑定数据
        /// </summary> 
        public void SetBindingData()
        {
            _allBindingList = new BindingList<CurrentViewModel>();
            var list = new BLL.Region().GetAll();
            if (list != null && list.Count > 0)
            {
                foreach (var item in list)
                {
                    var vm = new CurrentViewModel(item);
                    _allBindingList.Add(vm);
                }
            }
            this.treeListLookUpEdit1TreeList.DataSource = _allBindingList;
            this.treeListLookUpEdit1TreeList.ExpandAll();

            if (_allBindingList.Count > 0)
            {
                var vm = _allBindingList.First();
                this.treeListLookUpEdit1.EditValue = vm.ID;
                SelectedChanged(vm);
            }
        }


        //选择对象变换
        private void SelectedChanged(CurrentViewModel vm)
        {
            _selected = vm;
            if (SelectedChangedEvent != null)
            {
                this.SelectedChangedEvent(_selected);
            }
        }


        //值变换
        private void treeListLookUpEdit1_EditValueChanged(object sender, EventArgs e)
        {
            var vm = this.treeListLookUpEdit1TreeList.GetCurrentViewModel(_allBindingList);
            if (vm != null)
            {
                SelectedChanged(vm);
            }
        }


    }
}