using System;
using System.Diagnostics;
using System.IO;
using System.Net;
using System.Threading;
using System.Windows.Forms;

namespace Ultron.Update
{
    public partial class UpdateForm : Form
    {
        public string ExecuteFile { get; set; }

        public UpdateForm()
        {
            InitializeComponent();

            string fileVersion;
            if (File.Exists("uNgrok.exe"))
            {
                try
                {
                    FileVersionInfo file1 = FileVersionInfo.GetVersionInfo("uNgrok.exe");
                    fileVersion = string.Format("{0}.{1}.{2}.{3}", file1.FileMajorPart, file1.FileMinorPart, file1.FileBuildPart, file1.FilePrivatePart);
                    string checkUrl = "https://blog.wixy.cn/api/release/Ultron.Ngrok/" + fileVersion;
                    HttpGet(checkUrl);
                }
                catch (Exception)
                {
                    fileVersion = "";
                }
            }
            else
            {
                label1.Visible = false;
                label2.Visible = true;
                label2.Text = "未检测到uNgrok";
            }
        }

        public UpdateForm(string[] args)
        {
            string[] startParams = args[0].Split(' ');

            if(startParams.Length < 2)
            {
                MessageBox.Show("启动参数出错");
                return;
            }

            InitializeComponent();

            ExecuteFile = startParams[1];

            string updateFile = Directory.GetCurrentDirectory() + @"\"+ ExecuteFile;

            Thread.Sleep(800);

            if (File.Exists(updateFile))
                File.Delete(updateFile);
            if (File.Exists(Directory.GetCurrentDirectory() + @"\ngrok_x64.exe"))
                File.Delete(Directory.GetCurrentDirectory() + @"\ngrok_x64.exe");
            if (File.Exists(Directory.GetCurrentDirectory() + @"\ngrok_x86.exe"))
                File.Delete(Directory.GetCurrentDirectory() + @"\ngrok_x86.exe");

            DownLoadFile(startParams[0], startParams[1]);
        }


        public void HttpGet(string url)
        {
            WebClient wc = new WebClient();
            Uri uri = new Uri(url, UriKind.RelativeOrAbsolute);
            wc.OpenReadCompleted += new OpenReadCompletedEventHandler(wc_OpenReadCompleted);
            wc.OpenReadAsync(uri);
        }

        public void wc_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
        {
            StreamReader read = new StreamReader(e.Result);
            string str = read.ReadToEnd();
            if (str.Contains("\"code\":1"))
            {
                label1.Visible = false;
                label2.Visible = true;
                label2.Text = "未检测到新版本";
                return;
            }
            else
            {
                label2.Visible = false;
                label1.Visible = true;
                if (MessageBox.Show("检测到新版本，立即更新?", "版本更新", MessageBoxButtons.YesNo) == DialogResult.Yes)
                {
                    int verStart = str.IndexOf("\"version\":\"") + 11;
                    int verEnd = str.IndexOf("\",\"title\"");
                    string version = str.Substring(verStart, verEnd - verStart);

                    DownLoadFile("https://cloud-disk-1251608065.cos.ap-guangzhou.myqcloud.com/uNgrok_" + version + ".exe", "uNgrok.exe");
                }
            }
        }


        private void DownLoadFile(string fileUrl,string fileName)
        {
            WebClient wc = new WebClient();
            wc.DownloadProgressChanged += wc_DownloadProgressChanged;
            wc.DownloadFileCompleted += Wc_DownloadFileCompleted;
            wc.DownloadFileAsync(new Uri(fileUrl), fileName);
        }

        private void Wc_DownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
        {
            label1.Text = "完成";
            RunNewApp();
        }

        //  int index = 0;
        void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
        {
            try
            {
                Action act = () =>
                {
                    progressBar1.Value = e.ProgressPercentage;
                    label1.Text = e.ProgressPercentage + "%";
                };
                Invoke(act);
            }
            catch(Exception ex)
            {

            }
        }

        public void RunNewApp()
        {
            try
            {
                ProcessStartInfo startInfo = new ProcessStartInfo();
                startInfo.FileName = "uNgrok.exe";
                startInfo.WindowStyle = ProcessWindowStyle.Normal;
                Process.Start(startInfo);
                Application.Exit();
            }
            catch (Exception ex)
            {

            }
        }
    }
}