using MultiTerm.Core.ViewModel;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Windows.Controls;

namespace MultiTerm.Wpf.View;

public partial class ShellView : UserControl
{
    public ShellView()
    {
        InitializeComponent();
        this.DataContext = App.AppHost!.Services.GetService(typeof(ShellViewModel));

        // set version item header
        this.versionMenuItem.Header = $"MultiTerm Version {Assembly.GetExecutingAssembly().GetName().Version}";
    }

    /// <summary>
    /// Handles key down events for the whole user control.
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void UserControl_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
    {
        // move tab forward
        if ( e.Key == System.Windows.Input.Key.Tab && 
            e.KeyboardDevice.Modifiers == System.Windows.Input.ModifierKeys.Control )
        {
            // increment to larger index than existing is handled by tab control
            this.terminalTabControl.SelectedIndex++;
            e.Handled = true;
        }
        // move tab backwards
        else if ( e.Key == System.Windows.Input.Key.Tab && 
                  e.KeyboardDevice.Modifiers == (System.Windows.Input.ModifierKeys.Control | System.Windows.Input.ModifierKeys.Shift) )
        {
            // only move backwards if the resulting index is >= 0
            if(this.terminalTabControl.SelectedIndex > 0)
            {
                this.terminalTabControl.SelectedIndex--;
            }
            e.Handled = true;
        }
    }

    private void MenuItem_Logfiles_Click(object sender, System.Windows.RoutedEventArgs e)
    {
        // exit if logfile directory does not exist
        if (Directory.Exists(Common.LogFilesDirectory) == false) { return; }

        // open logfiles folder
        Process ExplorerWindowProcess = new Process();
        ExplorerWindowProcess.StartInfo.UseShellExecute = true;
        ExplorerWindowProcess.StartInfo.FileName = @$"{Common.LogFilesDirectory}";
        ExplorerWindowProcess.Start();
    }
}