AddGameWindow.cs

using System;
using System.Windows;
using System.IO;
using System.Linq;
using Microsoft.Win32;

namespace RomHub
{
    public partial class AddGameWindow : Window
    {
        public AddGameWindow()
        {
            InitializeComponent();
        }

        private void BrowseRom_Click(object sender, RoutedEventArgs e)
        {
            var dialog = new OpenFileDialog { Title = "Select ROM File", Filter = "ROM Files|*.*" };
            if (dialog.ShowDialog() == true)
            {
                RomBox.Text = dialog.FileName;
                if (string.IsNullOrWhiteSpace(TitleBox.Text))
                    TitleBox.Text = Path.GetFileNameWithoutExtension(dialog.FileName);
            }
        }

        private void BrowseEmu_Click(object sender, RoutedEventArgs e)
        {
            var dialog = new OpenFileDialog { Title = "Select Emulator", Filter = "Executable Files (*.exe)|*.exe|All Files|*.*" };
            if (dialog.ShowDialog() == true) EmuBox.Text = dialog.FileName;
        }

        private void BrowseIcon_Click(object sender, RoutedEventArgs e)
        {
            var dialog = new OpenFileDialog { Title = "Select Custom Cover Image", Filter = "Image Files|*.png;*.jpg;*.jpeg;*.bmp" };
            if (dialog.ShowDialog() == true) IconBox.Text = dialog.FileName;
        }

        private void TextBox_DragOver(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effects = DragDropEffects.Copy;
            e.Handled = true;
        }

        private void RomBox_Drop(object sender, DragEventArgs e)
        {
            if (e.Data.GetData(DataFormats.FileDrop) is string[] files && files.Length > 0)
            {
                RomBox.Text = files[0];
                if (string.IsNullOrWhiteSpace(TitleBox.Text))
                    TitleBox.Text = Path.GetFileNameWithoutExtension(files[0]);
            }
        }

        private void EmuBox_Drop(object sender, DragEventArgs e)
        {
            if (e.Data.GetData(DataFormats.FileDrop) is string[] files && files.Length > 0) EmuBox.Text = files[0];
        }

        private void IconBox_Drop(object sender, DragEventArgs e)
        {
            if (e.Data.GetData(DataFormats.FileDrop) is string[] files && files.Length > 0) IconBox.Text = files[0];
        }

        private void Cancel_Click(object sender, RoutedEventArgs e) => Close();

        private void Add_Click(object sender, RoutedEventArgs e)
        {
            if (string.IsNullOrWhiteSpace(TitleBox.Text) || string.IsNullOrWhiteSpace(RomBox.Text) || string.IsNullOrWhiteSpace(EmuBox.Text))
            {
                MessageBox.Show("Please fill out all required fields.", "Missing Information", MessageBoxButton.OK, MessageBoxImage.Warning);
                return;
            }

            if (!File.Exists(RomBox.Text) || !File.Exists(EmuBox.Text))
            {
                MessageBox.Show("The specified ROM file or Emulator executable does not exist.", "File Error", MessageBoxButton.OK, MessageBoxImage.Error);
                return;
            }

            string platform = PlatformDetector.GetPlatform(RomBox.Text);

            string romExtension = Path.GetExtension(RomBox.Text).ToLower();
            string[] validRomExtensions = PlatformDetector.GetSupportedExtensions();
            if (!validRomExtensions.Contains(romExtension))
            {
                var result = MessageBox.Show($"The extension '{romExtension}' is unrecognized. Add anyway?", "Format Verification", MessageBoxButton.YesNo, MessageBoxImage.Question);
                if (result == MessageBoxResult.No) return;
            }

            string definitiveIconPath = IconBox.Text;
            if (!string.IsNullOrWhiteSpace(definitiveIconPath) && File.Exists(definitiveIconPath))
            {
                try
                {
                    string localDirectory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "UserCovers");
                    Directory.CreateDirectory(localDirectory);
                    string targetFile = Path.Combine(localDirectory, Guid.NewGuid().ToString() + Path.GetExtension(definitiveIconPath));
                    File.Copy(definitiveIconPath, targetFile, true);
                    definitiveIconPath = targetFile;
                }
                catch { }
            }

            new GameRepository().AddGame(TitleBox.Text, RomBox.Text, EmuBox.Text, definitiveIconPath, platform);
            MessageBox.Show("Game successfully added!", "Success", MessageBoxButton.OK, MessageBoxImage.Information);
            Close();
        }
    }
}