using AllBase;
using DevComponents.DotNetBar;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace TemuKJD.KJDForms.ToolForms
{
    public partial class MeituMessageDialog : Form
    {
        public MeituMessageDialog()
        {
            InitializeComponent();

            this.Text = "提示";
            this.ShowIcon = false;
            this.FormClosing += MessageDialog_FormClosing;
            this.Activated += MessageDialog_Activated;
            this.Load += MeituMessageDialog_Load;
        }

        private void MeituMessageDialog_Load(object sender, EventArgs e)
        {
            tableLayoutPanel2.Controls[tableLayoutPanel2.Controls.Count - 1].Focus();
            foreach (var c in tableLayoutPanel2.Controls)
            {
                if (c is ButtonX)
                {
                    var btn = c as ButtonX;

                    btn.Click += Btn_Click;
                }
            }
        }

        private void MessageDialog_Activated(object sender, EventArgs e)
        {
        }

        private void Btn_Click(object sender, EventArgs e)
        {
            var btn = sender as ButtonX;
            if (btn != null)
                clickBtnText = btn.Text;

            if (btn.Text == "指定启动文件")
            {
                this.Close();
            }
            else if (btn.Text == "下载美图秀秀")
            {
                if (isDownload == true)
                {
                    MessageBox.Show("下载中，请稍候！");
                    return;
                }

                // 单线程单元(STA)模式运行文件对话框，否则会报错。
                System.Threading.Thread InvokeThread = new System.Threading.Thread(new System.Threading.ThreadStart(setDownloadPath));
                InvokeThread.SetApartmentState(System.Threading.ApartmentState.STA);
                InvokeThread.Start();
                InvokeThread.Join();
            }
            else if (btn.Text == "安装美图秀秀")
            {
                System.Diagnostics.Process.Start(desFile);
                //this.Close();
            }
        }

        private void setDownloadPath()
        {
            FolderBrowserDialog dialog = new FolderBrowserDialog();
            dialog.Description = "请选择文件路径";

            if (dialog.ShowDialog() == DialogResult.OK)
            {
                desFile = dialog.SelectedPath;

                new Thread(DownloadFileNoReturn).Start();
            }
        }

        private void MessageDialog_FormClosing(object sender, FormClosingEventArgs e)
        {
            isClick = true;
        }

        static bool isClick = false;
        static string clickBtnText = "";

        static MeituMessageDialog msg;
        public static string ShowMessageDialog(string text = "", string btnsStr = "")
        {
            msg = new MeituMessageDialog();
            string[] btnStrArr = btnsStr.Split(',');
            msg.tableLayoutPanel2.Refresh();
            msg.tableLayoutPanel2.ColumnCount = btnStrArr.Length + 2;

            msg.tableLayoutPanel2.ColumnStyles.Clear();
            msg.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(SizeType.Percent, 50F));
            msg.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
            msg.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
            msg.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(SizeType.Percent, 50F));

            msg.labelX1.Text = text;

            for (int i = 0; i < btnStrArr.Length; i++)
            {
                ButtonX btnX = new ButtonX();
                msg.tableLayoutPanel2.Controls.Add(btnX, i + 1, 0);
                btnX.Text = btnStrArr[i];
                btnX.Dock = DockStyle.Fill;

                btnX.AccessibleRole = AccessibleRole.PushButton;
                btnX.ColorTable = eButtonColor.OrangeWithBackground;
                btnX.Size = new Size(btnX.Text.Length * 16, 23);
                btnX.Style = eDotNetBarStyle.StyleManagerControlled;
            }
            msg.StartPosition = FormStartPosition.CenterScreen;
            //msg.TopMost = true;
            msg.ShowDialog();

            return clickBtnText;
        }

        private void tableLayoutPanel1_Paint(object sender, PaintEventArgs e)
        {

        }

        static string sourceFile = "http://xiuxiu.dl.meitu.com/xiuxiu_setup.exe";
        static string desFile = "";
        public static void DownloadFileNoReturn()
        {
            if (DownloadFile())
            {
                msg.Invoke(new Action(() =>
                {
                    var btn = msg.tableLayoutPanel2.Controls[0] as ButtonX;
                    btn.Text = "安装美图秀秀";
                }));
            }
        }

        static bool isDownload = false;
        /// 下载文件方法
        /// 文件保存路径和文件名
        /// 返回服务器文件名
        public static bool DownloadFile()
        {
            isDownload = true;

            if (sourceFile == "" || desFile == "")
            {
                isDownload = false;
                return false;
            }

            bool flag = false;
            long SPosition = 0;
            FileStream FStream = null;
            Stream myStream = null;
            string fileName = sourceFile.Substring(sourceFile.LastIndexOf(@"/") + 1);
            if (desFile.EndsWith("\\"))
            {
                desFile = desFile + fileName;
            }
            else
            {
                desFile = desFile + "\\" + fileName;
            }
            try
            {
                long serverFileLength = GetHttpLength(sourceFile);
                msg.Invoke(new Action(() =>
                {
                    msg.progressBarX1.Maximum = 100;
                    msg.progressBarX1.Visible = true;
                }));

                //判断要下载的文件夹是否存在
                if (File.Exists(desFile))
                {
                    //打开上次下载的文件
                    FStream = File.OpenWrite(desFile);
                    //获取已经下载的长度
                    SPosition = FStream.Length;
                    if (SPosition == serverFileLength)
                    {
                        //文件是完整的，直接结束下载任务
                        msg.Invoke(new Action(() =>
                        {
                            msg.progressBarX1.Value = 100;
                        }));
                        isDownload = false;
                        return true;
                    }
                    FStream.Seek(SPosition, SeekOrigin.Current);
                }
                else
                {
                    //文件不保存创建一个文件
                    FStream = new FileStream(desFile, FileMode.Create);
                    SPosition = 0;
                }
                //打开网络连接
                HttpWebRequest myRequest = (HttpWebRequest)HttpWebRequest.Create(sourceFile);
                if (SPosition > 0)
                {
                    myRequest.AddRange(SPosition);             //设置Range值
                }
                //向服务器请求,获得服务器的回应数据流
                myStream = myRequest.GetResponse().GetResponseStream();
                //定义一个字节数据
                byte[] btContent = new byte[512];
                int intSize = 0;
                intSize = myStream.Read(btContent, 0, 512);
                while (intSize > 0)
                {
                    FStream.Write(btContent, 0, intSize);
                    intSize = myStream.Read(btContent, 0, 512);

                    var currentPosition = FStream.Length;
                    msg.Invoke(new Action(() =>
                    {
                        msg.progressBarX1.Value = (int)(1.0 * currentPosition / serverFileLength * 100);
                    }));
                }
                flag = true;        //返回true下载成功
            }
            catch (Exception ex)
            {
                //SysLog.WriteTxtLog("下载文件时异常：" + ex.Message);
                LogSave.Add("MeituMessageDialog - 下载文件时异常：" + ex.Message);
            }
            finally
            {
                //关闭流
                if (myStream != null)
                {
                    myStream.Close();
                    myStream.Dispose();
                }
                if (FStream != null)
                {
                    FStream.Close();
                    FStream.Dispose();
                }
            }
            isDownload = false;
            return flag;
        }
        static long GetHttpLength(string url)
        {
            long length = 0;
            try
            {
                var req = (HttpWebRequest)WebRequest.CreateDefault(new Uri(url));
                req.Method = "HEAD";
                req.Timeout = 5000;
                var res = (HttpWebResponse)req.GetResponse();
                if (res.StatusCode == HttpStatusCode.OK)
                {
                    length = res.ContentLength;
                }
                res.Close();
                return length;
            }
            catch (WebException wex)
            {
                return 0;
            }
        }
    }
}