using MediaDevices;
using Mtp2Dav.MtpStore;
using Shell32;
using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Windows.Forms;
using Mtp2Dav.MtpStore._1d2086a502937936ebc6bfe19cfa15d855be1c31;
using Mtp2Dav.WebDAVSharp.Server._1d2086a502937936ebc6bfe19cfa15d855be1c31;

namespace Mtp2Dav
{
    using Utilities;
    using WebDAVSharp.Server;

    public partial class MainForm : Form
    {
        private MediaDevice _connectedDevice;
        private WebDavServer _runingDavServer;

        //private NetworkDrive _mappedDrive;
        private string _mappedDriveLetter;

        private static IPEndPoint GetEndPoint()
        {
            var bufRndIp = new byte[] { 127, 0, 0, 1 };
            var sck = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            sck.Bind(new IPEndPoint(new IPAddress(bufRndIp), 0));
            sck.Listen(0);
            var end = (IPEndPoint)sck.LocalEndPoint;
            sck.Close();
            return end;
        }

        private void RefreshDevices()
        {
            lvDevices.SelectedIndices.Clear();
            foreach (ListViewItem item in lvDevices.Items)
            {
                ((MediaDevice)item.Tag).Dispose();
            }
            lvDevices.Items.Clear();

            var devs = MediaDevice.GetDevices();
            foreach (var device in devs)
            {
                lvDevices.Items.Add(new ListViewItem
                {
                    ImageKey = "Default",
                    Text = device.FriendlyName + "(" + device.Description.Trim() + ")",
                    SubItems = { device.Manufacture, device.DeviceId },
                    ToolTipText = device.DeviceId,
                    Tag = device
                });
            }

            //Refresh drives
            cboDrive.DataSource = Enumerable.Range('A', 'Z' - 'A' + 1)
                .Select(i => (char)i + "")
                .Except(DriveInfo.GetDrives().Select(s => s.Name.Replace(":\\", "")))
                .OrderByDescending(p => p)
                .ToArray();
        }

        public MainForm()
        {
            InitializeComponent();
        }

        private void MainForm_Shown(object sender, EventArgs e)
        {
#if DEBUG
            chkFullBuf.Enabled = false;
#endif

            ilIcon.Images.Add("Default", Icon);
            RefreshDevices();
        }

        private void btnRefresh_Click(object sender, EventArgs e)
        {
            RefreshDevices();
        }

        private void lvDevices_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (lvDevices.SelectedIndices.Count == 0)
            {
                btnConnect.Enabled = false;
            }
            else
            {
                btnConnect.Enabled = true;
            }
        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
            if (lvDevices.SelectedIndices.Count == 0)
            {
                return;
            }

            var device = (MediaDevice)lvDevices.SelectedItems[0].Tag;
            device.Connect();

            var webDavMtpStore = new WebDavMtpStore(device, chkEnableRo.Checked);
            if (chkFullBuf.Checked)
                webDavMtpStore.FullBuf();

            var end = GetEndPoint();
            var davServer = new WebDavServer(webDavMtpStore);
            davServer.Start($"http://{end}/");

            Thread.Sleep(500);

            //var nd = new NetworkDrive();
            //nd.LocalDrive = cboDrive.Text;
            //nd.Persistent = false;
            //nd.PromptForCredentials = false;
            //nd.SaveCredentials = false;
            //nd.ShareName = $@"\\{end.Address}@{end.Port}\";
            //nd.Comment = "Mtp2Dav";
            //nd.MapDrive();
            //_mappedDrive = nd;
            if (chkMapDrive.Checked)
            {
                var r = Cmd.NetUse(cboDrive.Text, $@"\\{end.Address}@{end.Port}\");
                if (r == 0)
                {
                    _mappedDriveLetter = cboDrive.Text;
                    Process.Start(_mappedDriveLetter + ":");
                    ((Folder2)new ShellClass().NameSpace(_mappedDriveLetter + @":\")).Self.Name = "Mtp2Dav Drive";
                }
                else
                {
                    _mappedDriveLetter = null;
                    MessageBox.Show("Drive mapping fail. We will direct access.");
                    Process.Start($@"\\{end.Address}@{end.Port}\");
                }
            }
            else
            {
                _mappedDriveLetter = null;
                Process.Start($@"\\{end.Address}@{end.Port}\");
            }

            _connectedDevice = device;
            _runingDavServer = davServer;

            lvDevices.Enabled =
            btnRefresh.Enabled =
            btnConnect.Enabled =
            cboDrive.Enabled =
                false;

            btnDisconnect.Enabled =
                true;
        }

        private void btnDisconnect_Click(object sender, EventArgs e)
        {
            //_mappedDrive.UnMapDrive();
            if (_mappedDriveLetter != null)
            {
                var r = Cmd.NetUseDriveLetterDelete(_mappedDriveLetter);
                if (r != 0)
                {
                    MessageBox.Show("Drive unmapping fail. Please manual unmapping.");
                    //new NetworkDrive().ShowDisconnectDialog(this);
                }
            }

            _runingDavServer.Stop();
            _connectedDevice.Disconnect();

            btnDisconnect.Enabled =
                false;

            lvDevices.Enabled =
             btnRefresh.Enabled =
             cboDrive.Enabled =
             btnConnect.Enabled =
                 true;
        }

        private void MainForm_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (btnDisconnect.Enabled)
                btnDisconnect_Click(null, null); //so dirty :)
        }
    }
}