using System.Windows;
using System.Windows.Input;
using GifResizer.ViewModels;
using Microsoft.Win32;

namespace GifResizer.Views;

/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    
    private readonly MainViewModel _mainViewModel;
    
    public MainWindow(MainViewModel viewModel)
    {
        InitializeComponent();
        _mainViewModel = viewModel;
        DataContext = _mainViewModel;
    }
    
    private void BrowseButton_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            OpenFileDialog fileDialog = new OpenFileDialog
            {
                Title = "Select a GIF file",
                Filter = "GIF files (*.gif)|*.gif|All files (*.*)|*.*"
            };
        
            if (fileDialog.ShowDialog() == true)
            {
                _mainViewModel.LoadGifData(fileDialog.FileName);
            }
        }
        catch (Exception ex)
        {
            DisplayErrorMessage("An error occured while selecting the GIF file: " + ex.Message);
        }
    }
    
    private void ResizeButton_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            _mainViewModel.ResizeGif();
            DisplaySuccessMessage("Resize successful!");
        }
        catch (Exception ex)
        {
            DisplayErrorMessage("An error occured while resizing the GIF: " + ex.Message);
        }
    }
    
    private void IntegerOnly(object sender, TextCompositionEventArgs e)
    {
        e.Handled = !int.TryParse(e.Text, out _);
    }
    
    private void DisplayErrorMessage(string message)
    {
        MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
    }
    
    private void DisplaySuccessMessage(string message)
    {
        MessageBox.Show(message, "Success", MessageBoxButton.OK, MessageBoxImage.Information);
    }
}