using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Xml;
using System.Net;
using System.IO;
using System.Threading;
using System.Diagnostics;

namespace V5.AutoUpdate {
    /// <summary>
    /// Form1 的摘要说明。
    /// </summary>
    public class FrmUpdate : System.Windows.Forms.Form {
        private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.GroupBox groupBox1;
        private System.Windows.Forms.ColumnHeader chFileName;
        private System.Windows.Forms.ColumnHeader chVersion;
        private System.Windows.Forms.ColumnHeader chProgress;
        private System.Windows.Forms.GroupBox groupBox2;
        private System.Windows.Forms.ListView lvUpdateList;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Button btnNext;
        private System.Windows.Forms.Button btnCancel;
        private System.Windows.Forms.Label lbState;
        private System.Windows.Forms.ProgressBar pbDownFile;
        private System.Windows.Forms.Panel panel2;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.LinkLabel linkLabel1;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label5;
        private System.Windows.Forms.GroupBox groupBox3;
        private System.Windows.Forms.GroupBox groupBox4;
        private System.Windows.Forms.Button btnFinish;
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.Container components = null;


        public FrmUpdate() {
            InitializeComponent();

        }

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        protected override void Dispose(bool disposing) {
            if (disposing) {
                if (components != null) {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码
        /// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent() {
            System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(FrmUpdate));
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.panel1 = new System.Windows.Forms.Panel();
            this.label1 = new System.Windows.Forms.Label();
            this.groupBox2 = new System.Windows.Forms.GroupBox();
            this.lvUpdateList = new System.Windows.Forms.ListView();
            this.chFileName = new System.Windows.Forms.ColumnHeader();
            this.chVersion = new System.Windows.Forms.ColumnHeader();
            this.chProgress = new System.Windows.Forms.ColumnHeader();
            this.pbDownFile = new System.Windows.Forms.ProgressBar();
            this.lbState = new System.Windows.Forms.Label();
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.btnNext = new System.Windows.Forms.Button();
            this.btnCancel = new System.Windows.Forms.Button();
            this.panel2 = new System.Windows.Forms.Panel();
            this.label4 = new System.Windows.Forms.Label();
            this.linkLabel1 = new System.Windows.Forms.LinkLabel();
            this.label3 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label5 = new System.Windows.Forms.Label();
            this.groupBox3 = new System.Windows.Forms.GroupBox();
            this.groupBox4 = new System.Windows.Forms.GroupBox();
            this.btnFinish = new System.Windows.Forms.Button();
            this.panel1.SuspendLayout();
            this.panel2.SuspendLayout();
            this.SuspendLayout();
            this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
            this.pictureBox1.Location = new System.Drawing.Point(8, 8);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(96, 240);
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            this.panel1.Controls.Add(this.label1);
            this.panel1.Controls.Add(this.groupBox2);
            this.panel1.Controls.Add(this.lvUpdateList);
            this.panel1.Controls.Add(this.pbDownFile);
            this.panel1.Controls.Add(this.lbState);
            this.panel1.Controls.Add(this.groupBox1);
            this.panel1.Location = new System.Drawing.Point(120, 8);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(280, 240);
            this.panel1.TabIndex = 2;
            this.label1.Location = new System.Drawing.Point(16, 16);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(136, 16);
            this.label1.TabIndex = 9;
            this.label1.Text = "以下为更新文件列表";
            this.groupBox2.Dock = System.Windows.Forms.DockStyle.Bottom;
            this.groupBox2.Location = new System.Drawing.Point(0, 238);
            this.groupBox2.Name = "groupBox2";
            this.groupBox2.Size = new System.Drawing.Size(280, 2);
            this.groupBox2.TabIndex = 7;
            this.groupBox2.TabStop = false;
            this.groupBox2.Text = "groupBox2";
            this.lvUpdateList.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
																						   this.chFileName,
																						   this.chVersion,
																						   this.chProgress});
            this.lvUpdateList.Location = new System.Drawing.Point(3, 48);
            this.lvUpdateList.Name = "lvUpdateList";
            this.lvUpdateList.Size = new System.Drawing.Size(272, 120);
            this.lvUpdateList.TabIndex = 6;
            this.lvUpdateList.View = System.Windows.Forms.View.Details;
            this.chFileName.Text = "组件名";
            this.chFileName.Width = 123;
            this.chVersion.Text = "版本号";
            this.chVersion.Width = 98;
            this.chProgress.Text = "进度";
            this.chProgress.Width = 47;
            this.pbDownFile.Location = new System.Drawing.Point(3, 200);
            this.pbDownFile.Name = "pbDownFile";
            this.pbDownFile.Size = new System.Drawing.Size(274, 17);
            this.pbDownFile.TabIndex = 5;
            this.lbState.Location = new System.Drawing.Point(3, 176);
            this.lbState.Name = "lbState";
            this.lbState.Size = new System.Drawing.Size(240, 16);
            this.lbState.TabIndex = 4;
            this.lbState.Text = "点击“下一步”开始更新文件";
            this.groupBox1.Location = new System.Drawing.Point(0, 32);
            this.groupBox1.Name = "groupBox1";
            this.groupBox1.Size = new System.Drawing.Size(280, 8);
            this.groupBox1.TabIndex = 1;
            this.groupBox1.TabStop = false;
            this.btnNext.Location = new System.Drawing.Point(224, 264);
            this.btnNext.Name = "btnNext";
            this.btnNext.Size = new System.Drawing.Size(80, 24);
            this.btnNext.TabIndex = 3;
            this.btnNext.Text = "下一步(&N)>";
            this.btnNext.Click += new System.EventHandler(this.btnNext_Click);
            this.btnCancel.Location = new System.Drawing.Point(312, 264);
            this.btnCancel.Name = "btnCancel";
            this.btnCancel.Size = new System.Drawing.Size(80, 24);
            this.btnCancel.TabIndex = 4;
            this.btnCancel.Text = "取消(&C)";
            this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
            this.panel2.Controls.Add(this.label4);
            this.panel2.Controls.Add(this.linkLabel1);
            this.panel2.Controls.Add(this.label3);
            this.panel2.Controls.Add(this.label2);
            this.panel2.Controls.Add(this.label5);
            this.panel2.Controls.Add(this.groupBox3);
            this.panel2.Controls.Add(this.groupBox4);
            this.panel2.Location = new System.Drawing.Point(8, 264);
            this.panel2.Name = "panel2";
            this.panel2.Size = new System.Drawing.Size(112, 24);
            this.panel2.TabIndex = 5;
            this.label4.Location = new System.Drawing.Point(144, 184);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(100, 16);
            this.label4.TabIndex = 13;
            this.label4.Text = "中国亿万电器网";
            this.linkLabel1.Location = new System.Drawing.Point(136, 208);
            this.linkLabel1.Name = "linkLabel1";
            this.linkLabel1.Size = new System.Drawing.Size(128, 16);
            this.linkLabel1.TabIndex = 12;
            this.linkLabel1.TabStop = true;
            this.linkLabel1.Text = "http://www.e10000.cn";
            this.linkLabel1.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabel1_LinkClicked);
            this.label3.Location = new System.Drawing.Point(24, 120);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(184, 16);
            this.label3.TabIndex = 11;
            this.label3.Text = "欢迎以后继续关注我们的产品。";
            this.label2.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
            this.label2.Location = new System.Drawing.Point(24, 64);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(232, 48);
            this.label2.TabIndex = 10;
            this.label2.Text = "     程序更新完成,如果程序更新期间被关闭,点击\"完成\"自动更新程序会自动重新启动系统。";
            this.label5.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
            this.label5.Location = new System.Drawing.Point(16, 8);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(136, 24);
            this.label5.TabIndex = 9;
            this.label5.Text = "感谢使用在线升级";
            this.groupBox3.Dock = System.Windows.Forms.DockStyle.Bottom;
            this.groupBox3.Location = new System.Drawing.Point(0, 22);
            this.groupBox3.Name = "groupBox3";
            this.groupBox3.Size = new System.Drawing.Size(112, 2);
            this.groupBox3.TabIndex = 7;
            this.groupBox3.TabStop = false;
            this.groupBox3.Text = "groupBox2";
            this.groupBox4.Location = new System.Drawing.Point(0, 32);
            this.groupBox4.Name = "groupBox4";
            this.groupBox4.Size = new System.Drawing.Size(280, 8);
            this.groupBox4.TabIndex = 1;
            this.groupBox4.TabStop = false;
            this.btnFinish.Location = new System.Drawing.Point(136, 264);
            this.btnFinish.Name = "btnFinish";
            this.btnFinish.Size = new System.Drawing.Size(80, 24);
            this.btnFinish.TabIndex = 3;
            this.btnFinish.Text = "完成(&F)";
            this.btnFinish.Click += new System.EventHandler(this.btnFinish_Click);
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(424, 301);
            this.ControlBox = false;
            this.Controls.Add(this.panel2);
            this.Controls.Add(this.btnCancel);
            this.Controls.Add(this.btnNext);
            this.Controls.Add(this.panel1);
            this.Controls.Add(this.pictureBox1);
            this.Controls.Add(this.btnFinish);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "FrmUpdate";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "自动更新";
            this.Load += new System.EventHandler(this.FrmUpdate_Load);
            this.panel1.ResumeLayout(false);
            this.panel2.ResumeLayout(false);
            this.ResumeLayout(false);

        }
        #endregion

        private string updateUrl = string.Empty;
        private string tempUpdatePath = string.Empty;
        XmlFiles updaterXmlFiles = null;
        private int availableUpdate = 0;
        bool isRun = false;
        string mainAppExe = "";

        private void FrmUpdate_Load(object sender, System.EventArgs e) {

            panel2.Visible = false;
            btnFinish.Visible = false;

            string localXmlFile = Application.StartupPath + "\\UpdateList.xml";
            string serverXmlFile = string.Empty;


            try {
                updaterXmlFiles = new XmlFiles(localXmlFile);
            }
            catch (Exception ex) {
                MessageBox.Show("配置文件出错!" + ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                this.Close();
                return;
            }
            updateUrl = updaterXmlFiles.GetNodeValue("//Url");

            AppUpdater appUpdater = new AppUpdater();
            appUpdater.UpdaterUrl = updateUrl + "/UpdateList.xml";

            try {
                tempUpdatePath = Environment.GetEnvironmentVariable("Temp") + "\\" + "_" + updaterXmlFiles.FindNode("//Application").Attributes["applicationId"].Value + "_" + "y" + "_" + "x" + "_" + "m" + "_" + "\\";
                appUpdater.DownAutoUpdateFile(tempUpdatePath);
            }
            catch {
                MessageBox.Show("与服务器连接失败,操作超时!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                this.Close();
                return;

            }

            Hashtable htUpdateFile = new Hashtable();

            serverXmlFile = tempUpdatePath + "\\UpdateList.xml";
            if (!File.Exists(serverXmlFile)) {
                return;
            }

            availableUpdate = appUpdater.CheckForUpdate(serverXmlFile, localXmlFile, out htUpdateFile);
            if (availableUpdate > 0) {
                for (int i = 0; i < htUpdateFile.Count; i++) {
                    string[] fileArray = (string[])htUpdateFile[i];
                    lvUpdateList.Items.Add(new ListViewItem(fileArray));
                }
            }
        }

        private void btnCancel_Click(object sender, System.EventArgs e) {
            this.Close();
            Application.ExitThread();
            Application.Exit();
        }

        private void btnNext_Click(object sender, System.EventArgs e) {
            if (availableUpdate > 0) {
                Thread threadDown = new Thread(new ThreadStart(DownUpdateFile));
                threadDown.IsBackground = true;
                threadDown.Start();
            }
            else {
                MessageBox.Show("没有可用的更新!", "自动更新", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }

        }
        private void DownUpdateFile() {
            this.Cursor = Cursors.WaitCursor;
            mainAppExe = updaterXmlFiles.GetNodeValue("//EntryPoint");
            Process[] allProcess = Process.GetProcesses();
            foreach (Process p in allProcess) {

                if (p.ProcessName.ToLower() + ".exe" == mainAppExe.ToLower()) {
                    for (int i = 0; i < p.Threads.Count; i++)
                        p.Threads[i].Dispose();
                    p.Kill();
                    isRun = true;
                }
            }
            WebClient wcClient = new WebClient();
            for (int i = 0; i < this.lvUpdateList.Items.Count; i++) {
                string UpdateFile = lvUpdateList.Items[i].Text.Trim();
                string updateFileUrl = updateUrl + lvUpdateList.Items[i].Text.Trim();
                long fileLength = 0;

                WebRequest webReq = WebRequest.Create(updateFileUrl);
                WebResponse webRes = webReq.GetResponse();
                fileLength = webRes.ContentLength;

                lbState.Text = "正在下载更新文件,请稍后...";
                pbDownFile.Value = 0;
                pbDownFile.Maximum = (int)fileLength;

                try {
                    Stream srm = webRes.GetResponseStream();
                    StreamReader srmReader = new StreamReader(srm);
                    byte[] bufferbyte = new byte[fileLength];
                    int allByte = (int)bufferbyte.Length;
                    int startByte = 0;
                    while (fileLength > 0) {
                        Application.DoEvents();
                        int downByte = srm.Read(bufferbyte, startByte, allByte);
                        if (downByte == 0) { break; };
                        startByte += downByte;
                        allByte -= downByte;
                        pbDownFile.Value += downByte;

                        float part = (float)startByte / 1024;
                        float total = (float)bufferbyte.Length / 1024;
                        int percent = Convert.ToInt32((part / total) * 100);

                        this.lvUpdateList.Items[i].SubItems[2].Text = percent.ToString() + "%";

                    }

                    string tempPath = tempUpdatePath + UpdateFile;
                    CreateDirtory(tempPath);
                    FileStream fs = new FileStream(tempPath, FileMode.OpenOrCreate, FileAccess.Write);
                    fs.Write(bufferbyte, 0, bufferbyte.Length);
                    srm.Close();
                    srmReader.Close();
                    fs.Close();


                }
                catch (WebException ex) {
                    MessageBox.Show("更新文件下载失败！" + ex.Message.ToString(), "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            InvalidateControl();
            this.Cursor = Cursors.Default;
        }
        private void CreateDirtory(string path) {
            if (!File.Exists(path)) {
                string[] dirArray = path.Split('\\');
                string temp = string.Empty;
                for (int i = 0; i < dirArray.Length - 1; i++) {
                    temp += dirArray[i].Trim() + "\\";
                    if (!Directory.Exists(temp))
                        Directory.CreateDirectory(temp);
                }
            }
        }

        public void CopyFile(string sourcePath, string objPath) {
            if (!Directory.Exists(objPath)) {
                Directory.CreateDirectory(objPath);
            }
            string[] files = Directory.GetFiles(sourcePath);
            for (int i = 0; i < files.Length; i++) {
                string[] childfile = files[i].Split('\\');
                File.Copy(files[i], objPath + @"\" + childfile[childfile.Length - 1], true);
            }
            string[] dirs = Directory.GetDirectories(sourcePath);
            for (int i = 0; i < dirs.Length; i++) {
                string[] childdir = dirs[i].Split('\\');
                CopyFile(dirs[i], objPath + @"\" + childdir[childdir.Length - 1]);
            }
        }

        private void linkLabel1_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e) {
            System.Diagnostics.Process.Start(linkLabel1.Text);
        }
        private void btnFinish_Click(object sender, System.EventArgs e) {

            this.Close();
            this.Dispose();
            try {
                CopyFile(tempUpdatePath, Directory.GetCurrentDirectory());
                System.IO.Directory.Delete(tempUpdatePath, true);
            }
            catch (Exception ex) {
                MessageBox.Show(ex.Message.ToString());
            }
            if (true == this.isRun) Process.Start(mainAppExe);
        }

        private void InvalidateControl() {
            panel2.Location = panel1.Location;
            panel2.Size = panel1.Size;
            panel1.Visible = false;
            panel2.Visible = true;

            btnNext.Visible = false;
            btnCancel.Visible = false;
            btnFinish.Location = btnCancel.Location;
            btnFinish.Visible = true;
        }
        private bool IsMainAppRun() {
            string mainAppExe = updaterXmlFiles.GetNodeValue("//EntryPoint");
            bool isRun = false;
            Process[] allProcess = Process.GetProcesses();
            foreach (Process p in allProcess) {

                if (p.ProcessName.ToLower() + ".exe" == mainAppExe.ToLower()) {
                    isRun = true;
                }
            }
            return isRun;
        }
    }
}