using System;
using System.Diagnostics;
using System.Windows.Threading;
using Blake3;
using MediaDevices;

namespace ReSync
{
    public static class FileManager
    {
        static bool cancel = false;
        public static void ScanMTPDevice(MediaDevice device)
        {
            Debug.WriteLine("Starting MTP device scan...");
            Debug.WriteLine(cancel);
            device.Connect();
            ListAllFiles(device, "//");

            device.Disconnect();
        }

        static void ListAllFiles(MediaDevice device, string directory)
        {
        if (cancel) return;
        // Get all subdirectories
        var dirs = device.GetDirectories(directory);
        var files = device.GetFiles(directory);

        foreach (var file in files)
        {
            if (cancel) return;         
            Console.WriteLine(file);
        }

        // Recursively explore directories
        foreach (var dir in dirs)
        {
            if (cancel) return;
            ListAllFiles(device, dir);
        }
        }
        
        public static string GetFileHash(string filePath)
        {
            return "a";
        }

        public static void CancelOperation()
        {
            cancel = true;
            Dispatcher.CurrentDispatcher.InvokeAsync(async() =>
            {
                await Task.Delay(1000);
                cancel = false;
            });
        }
    }
}