using System;
using System.Buffers;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.TextBox;

namespace NetTunnelApp;

public partial class MainForm : Form
{
    public MainForm()
    {
        InitializeComponent();
        var path = Environment.CurrentDirectory + "\\tunnelsdk_" +
                   string.Format("{0:yyyyMMdd}", DateTime.Now) + ".log";
        NetTunnelLib.InitTunnelSDKLog(path, LogLevel.LOG_DEBUG);

        NetTunnelLib.TunnelSDKInitEnv(Environment.CurrentDirectory);
    }

    private void test_get_network_info()
    {
        IntPtr pt = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(NetCard)) * 32);
        int size = 0;

        var v = NetTunnelLib.GetAllNICInfo(pt, ref size);

        Console.WriteLine("Result {0}, total {1}", v, size);

        for (int i = 0; i < size; i++)
        {
            IntPtr ptr = new IntPtr(pt.ToInt64() + Marshal.SizeOf(typeof(NetCard)) * i);
            NetCard card = (NetCard)Marshal.PtrToStructure(ptr, typeof(NetCard));

            Console.WriteLine("Name:{0}", card.Name);
            Console.WriteLine("Description:{0}", card.Description);
            Console.WriteLine("Ip:{0}", card.IpAddr);
            Console.WriteLine("NetMask:{0}", card.NetMask);
            Console.WriteLine("MacAddr:{0}", card.MacAddr);
        }

        Marshal.FreeHGlobal(pt);
    }

    private void test_create_wg_key()
    {
        var buffer = new StringBuilder(64 + 1);
        var buffer2 = new StringBuilder(64 + 1);
        var v = NetTunnelLib.GenerateWireguardKeyPairs(buffer, 64, buffer2, 64);
        lstLogs.Items.Add(v.ToString() + ": [" + buffer.ToString() + "] / [" + buffer2.ToString() + "]");
    }

    private void test_create_wg_svr_cfg()
    {
        WgSvrConfig wsg = new WgSvrConfig();
        
        wsg.Name = "wg_svr";
        wsg.Address = "10.10.10.250/24";
        wsg.ListenPort = 10000;
        wsg.PrivateKey = "EOHYEXSK4xw0LlB4I3ZlF5UqSaoma3Ea2KPhLfIdA14=";
        wsg.CliPubKey = "6BWnmkCJqJC5iNoCEZWTxwGNG7qwkxFoVgAk4DoIKCk=";
        wsg.AllowNet = "10.10.10.5/32";

        var v = NetTunnelLib.WireGuardCreateServerConfig(wsg);

        Console.WriteLine("Create WireGuard Server Configure File: {0}", v);
    }

    public void test_create_wg_cli_cfg()
    {
        WgCliConfig cli = new WgCliConfig();

        cli.Name = "wg_cli";
        cli.Address = "10.10.10.1/32";
        cli.PrivateKey = "WGAlqvys3O83VmWug6Z8NzUrxGr/PNHSeOVFnKLSe2k=";

        cli.SvrPubKey = "8KEaqtWM5U35SR8S3QJriGHPr0VIqvk8A7BEuOjjp1M=";
        cli.AllowNet = "10.10.10.0/24, 10.0.4.16/30";
        cli.ServerURL = "101.35.234.160:10010";

        var v = NetTunnelLib.WireGuardCreateClientConfig(cli);

        Console.WriteLine("Create WireGuard Client Configure File: {0}", v);
    }

    private void test_uninstall_wg_server()
    {
        var v = NetTunnelLib.WireGuardInstallServerService(false);
        Console.WriteLine("Uninstall Result: {0}", v);
    }

    private void test_install_wg_server()
    {
        var v = NetTunnelLib.WireGuardInstallServerService(true);
        Console.WriteLine("Install Result: {0}", v);
    }

    private void button1_Click(object sender, EventArgs e)
    {
        //var buffer = new StringBuilder(256 + 1);
        //NetTunnelLib.TunnelSDKInitEnv();
        //var v = NetTunnelLib.FindWireguardExe(buffer, 256);
        //MessageBox.Show(buffer.ToString() + "----" + v.ToString());

        test_install_wg_server();
    }

    private void button2_Click(object sender, EventArgs e)
    {
        
        test_uninstall_wg_server();
    }
}