using System.Text.RegularExpressions;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using Aitex.Core.Account;
using Aitex.Core.UI.MVVM;
using Triton160.UI.ViewModel;

namespace Aitex.Triton160.UI.Views.Hz
{
    /// <summary>
    /// HzOverviewView.xaml 的交互逻辑
    /// </summary>
    public partial class HzOverviewView : UserControl
    {
        private OverviewViewModel _vm;

        public HzOverviewView()
        {
            InitializeComponent();

            _vm = new OverviewViewModel(this);
            this.DataContext = _vm;

            this.IsVisibleChanged += new DependencyPropertyChangedEventHandler(OverviewView_IsVisibleChanged);

            this.Loaded += OverviewView_Loaded;
        }

        void OverviewView_Loaded(object sender, RoutedEventArgs e)
        {
            OverviewViewModel model = this.DataContext as OverviewViewModel;

            this.Name = "overview";
            var permission = this.GetPermission();
            switch (permission)
            {
                case ViewPermission.PartlyControl:
                    //canvasGraphicDevice.IsEnabled = false;
                    gridMonitorTable.IsEnabled = false;
                    groupManualOperation.IsEnabled = false;
                    break;

                default:
                    break;
            }
            model.IsFullControlPermission = permission == ViewPermission.FullyControl;
        }

        void OverviewView_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            (this.DataContext as TimerViewModelBase).EnableTimer(this.IsVisible);
        }

        private void OnPreviewTextInput(object sender, TextCompositionEventArgs e)
        {
            e.Handled = !IsTextAllowed(e.Text);
        }

        private void InputTextBoxPower_TextChanged(object sender, TextChangedEventArgs e)
        {
            double input;

            bool enable = true;

            if (!double.TryParse((sender as TextBox).Text, out input))
                enable = false;
            else if (input < 0 || input > _vm.Rf.ScalePower)
                enable = false;

            (sender as TextBox).Foreground = enable ?
                System.Windows.Media.Brushes.Black : System.Windows.Media.Brushes.Red;
        }

        private static bool IsTextAllowed(string text)
        {
            Regex regex = new Regex("[^0-9.]+"); //regex that matches disallowed text
            return !regex.IsMatch(text);
        }
    }
}