using System;
using System.Collections.ObjectModel;
using System.Linq;
using System.Windows;
using Prism.Services.Dialogs;
using SWS.CAD.ViewModels.myViewModelBase;
using SWS.Commons;
using SWS.Model;

namespace SWS.CAD.ViewModels
{
    public class DialogUnitSelectViewModel : DialogBase, IDialogAware
    {

        public DialogUnitSelectViewModel()
        {
            title = "设计单位选择框";
        }

        public string Title => "";

        public event Action<IDialogResult> RequestClose;

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {

        }
        private ObservableCollection<Unit> _listUnit;
        /// <summary>
        /// 单位列表
        /// </summary>
        public ObservableCollection<Unit> listUnit
        {
            get { return _listUnit; }
            set { _listUnit = value; RaisePropertyChanged(nameof(listUnit)); }
        }
        private Unit _SelectedUnit;
        /// <summary>
        /// 选中的单位
        /// </summary>
        public Unit SelectedUnit
        {
            get { return _SelectedUnit; }
            set { _SelectedUnit = value; RaisePropertyChanged(nameof(SelectedUnit)); }
        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            var unitTypeId = parameters.GetValue<string>(GlobalObject.dialogPar.unitTypeId.ToString());
            var selectUnit = parameters.GetValue<string>(GlobalObject.dialogPar.textYes.ToString());
            var list = GlobalObject.Units.Where(a => a.MeasuringUnitTypeID == unitTypeId).ToList(); 
            listUnit = new ObservableCollection<Unit>();
            foreach (var item in list)
            {
                listUnit.Add(new Unit() { UnitId=item.MeasuringUnitID, UnitName = item.MeasuringUnitName });
            }
            SelectedUnit = listUnit.FirstOrDefault(a => a.UnitName == selectUnit);
        }
        public override void ExecuteOKCommandAsync(object para)
        {
            if (SelectedUnit == null)
            {
                MessageBox.Show("请选择一个单位！");
                return;
            }
            IDialogParameters res = new DialogParameters();
            res.Add(GlobalObject.dialogPar.unit.ToString(), SelectedUnit);
            DialogResult result = new DialogResult(ButtonResult.Yes, res);
            RequestClose.Invoke(result);
        }
        public override void ExecuteCloseCommand(object parameter)
        {
            if (parameter as string == "ClickNo")
            {
                DialogResult res = new DialogResult(ButtonResult.No);
                RequestClose.Invoke(res);
            }
            else
            {
                DialogResult res = new DialogResult(ButtonResult.Cancel);
                RequestClose.Invoke(res);
            }
            this.Dispose();
        }

    }


}