using System.Linq;
using Prism.Mvvm;
using Prism.Events;
using Prism.Commands;
using SHJX.Service.Model.Dao;
using SHJX.Service.Common.Event;
using SHJX.Service.Control.Interface;
using System.Collections.ObjectModel;

namespace SHJX.Service.Library.ViewModels
{
    public class WaveShowBoxViewModel : BindableBase
    {
        #region Fields
        private readonly IEventAggregator _ea;
        private readonly IMainService _service;
        #endregion

        #region Properties
        private string _waveKeyItem;
        public string WaveKeyItem
        {
            get => _waveKeyItem;
            set => SetProperty(ref _waveKeyItem, value);
        }
        private bool? _dialogResult;
        public bool? DialogResult
        {
            get { return _dialogResult; }
            set => SetProperty(ref _dialogResult, value);
        }
        public ObservableCollection<string> Wavekeys { get; set; }
        #endregion

        public WaveShowBoxViewModel(IEventAggregator ea, IMainService service)
        {
            _ea = ea;
            _service = service;
            Wavekeys = new ObservableCollection<string>((from wavekey in _service.GetData<Wavekey>().ToList() orderby wavekey.WaveKey descending select wavekey.WaveKey).ToList());
        }

        #region Commands
        private DelegateCommand _waveKeyCommand;
        public DelegateCommand WaveKeyCommand => _waveKeyCommand ?? new DelegateCommand(ExecuteWaveKeyCommand);
        #endregion

        #region Execute
        private void ExecuteWaveKeyCommand()
        {
            _ea.GetEvent<TransmitWavekeyEvent>().Publish(WaveKeyItem);
            DialogResult = true;
        }
        #endregion
    }
}