using Microsoft.Win32;

namespace CRAWLER.Services;

internal interface IFilePickerService
{
    IReadOnlyList<string> PickPdfFiles(bool multiselect);
}

internal sealed class FilePickerService : IFilePickerService
{
    public IReadOnlyList<string> PickPdfFiles(bool multiselect)
    {
        var dialog = new OpenFileDialog
        {
            Filter = "PDF (*.pdf)|*.pdf",
            Multiselect = multiselect,
            CheckFileExists = true,
            CheckPathExists = true
        };

        return dialog.ShowDialog() == true
            ? dialog.FileNames
            : Array.Empty<string>();
    }
}