using Correlator.Dialog;
using Correlator.Model;
using Correlator.Service;
using Correlator.Util;
using GalaSoft.MvvmLight;
using GalaSoft.MvvmLight.Command;
using GalaSoft.MvvmLight.Messaging;

namespace Correlator.ViewModel
{
    public class EditSoundSpeedViewModel : ViewModelBase
    {
        private readonly ISoundSpeedDataService _dataService;
        private MaterialVelocity _materialVelocity;

        private string _minDiameter;

        public string MinDiameter
        {
            get => _minDiameter;
            set
            {
                _minDiameter = value;
                RaisePropertyChanged(() => MinDiameter);
            }
        }

        private string _maxDiameter;

        public string MaxDiameter
        {
            get => _maxDiameter;
            set
            {
                _maxDiameter = value;
                RaisePropertyChanged(() => MaxDiameter);
            }
        }

        private string _soundSpeed;

        public string SoundSpeed
        {
            get => _soundSpeed;
            set
            {
                _soundSpeed = value;
                RaisePropertyChanged(() => SoundSpeed);
            }
        }

        public RelayCommand<EditSoundSpeedDialog> DetermineParamCommand { get; set; }

        public EditSoundSpeedViewModel(ISoundSpeedDataService dataService)
        {
            _dataService = dataService;
            Messenger.Default.Register<MaterialVelocity>(this, MessengerToken.EditSoundSpeedMessage, it =>
            {
                _materialVelocity = it;

                MinDiameter = _materialVelocity.LowDiameter.ToString();
                MaxDiameter = _materialVelocity.HighDiameter.ToString();
                SoundSpeed = _materialVelocity.Velocity.ToString();
            });

            DetermineParamCommand = new RelayCommand<EditSoundSpeedDialog>(EditSoundSpeed);
        }

        private void EditSoundSpeed(EditSoundSpeedDialog it)
        {
            _dataService.UpdateVelocity(_materialVelocity, _minDiameter, _maxDiameter, _soundSpeed);

            //更新界面数据
            Messenger.Default.Send("", MessengerToken.UpdateSoundSpeed);

            //返回选择材质界面
            it.Close();
        }
    }
}