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using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using Microsoft.Win32;

namespace FwUpdateTool.WizardSteps
{
    /// <summary>
    /// Interaction logic for SelectImageScreen.xaml
    /// </summary>
    public partial class SelectImageScreen : IWizardScreen, INotifyPropertyChanged
    {
        public SelectImageScreen()
        {
            InitializeComponent();
        }

        /// <summary>
        /// Browse button command, open dialog to select FW image
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BrowseButton_Click(object sender, RoutedEventArgs e)
        {
            var fileDlg = new OpenFileDialog();
            bool? result = fileDlg.ShowDialog();
            if (result == true)
            {
                FilePath.Text = fileDlg.FileName;
            }
        }

        /// <summary>
        /// Filename path changed command, validating the image and if is fine enable the next button
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void OnContentChanged(object sender, TextChangedEventArgs e)
        {
            var mainWin = (Application.Current.MainWindow as MainWindow);
            if (mainWin != null)
            {
                mainWin.ImageFileName = FilePath.Text;
            }
        }

        #region IWizardScreen

        public bool CancelButtonActive
        {
            get { return true; }
        }

        public bool NextButtonActive
        {
            get { return true; }
        }

        public bool BackButtonActive
        {
            get { return true; }
        }

        public string[] Title
        {
            get { return new[] {"Select FW Image"}; }
        }

        #endregion

        #region INotifyPropertyChanged

        public event PropertyChangedEventHandler PropertyChanged;
        // Create the OnPropertyChanged method to raise the event 
        private void OnPropertyChanged(string name)
        {
            var handler = PropertyChanged;
            if (handler != null)
            {
                handler(this, new PropertyChangedEventArgs(name));
            }
        }

        protected void OnPageChange()
        {
            OnPropertyChanged("CancelButtonActive");
            OnPropertyChanged("NextButtonActive");
            OnPropertyChanged("BackButtonActive");
        }

        #endregion
    }
}
