using GalaSoft.MvvmLight.Command;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using Unity;

namespace FLY.DownBlowing.UI.Client.UiModule
{
    /// <summary>
    /// Window_Frequency.xaml 的交互逻辑
    /// </summary>
    public partial class WdSetValue : FLY.ControlLibrary.WindowBigClose
    {
        WdSetValueVm viewModel;
        public float Value {
            get {
                return viewModel.Value;
            }
        }
        public WdSetValue()
        {
            InitializeComponent();

            viewModel = new WdSetValueVm();
        }

        public void Init(
            float value, float max, float min, float step, string title, string unit)
        {
            viewModel.Init(value, max, min, step, title, unit);
            this.DataContext = viewModel;

        }

        private void btnOkClick(object sender, RoutedEventArgs e)
        {
            this.DialogResult = true;
            this.Close();
        }
    }

    public class WdSetValueVm : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        public float Value { get; set; }
        public string Title { get; private set; } = "速度设置";
        public string Unit { get; private set; } = "m/min";


        #region Command
        public RelayCommand PlusCmd { get; }
        public RelayCommand MinusCmd { get; }
        public RelayCommand OkCmd { get; }
        #endregion


        float max;
        float min;
        float step;

        public WdSetValueVm() {
            PlusCmd = new RelayCommand(Plus);
            MinusCmd = new RelayCommand(Minus);
        }

        public void Init(
            float value, float max, float min, float step, string title, string unit)
        {
            Value = value;
            Title = title;
            Unit = unit;

            this.max = max;
            this.min = min;
            this.step = step;

        }

        private void Minus()
        {
            if (Value > min)
                Value -= step;
        }

        private void Plus()
        {
            if (Value < max)
                Value += step;
        }
    }
}