using DiffPlex.Model;
using FTPop;
using GameBackup3H3.DbOp;
using ryCommon;
using SuperDesign.Manager.FTP;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using 开发辅助工具.Tools.SmartEditor;
using static System.Net.WebRequestMethods;

namespace 开发辅助工具.Manager.FTP
{
    public partial class FrmDownProg : Form
    {
        public FrmDownProg()
        {
            InitializeComponent();
        }
        public List<UploadInfo> DownList { get; set; } = new List<UploadInfo>();
        private bool IsExit = false;
        private void FrmDownProg_FormClosing(object sender, FormClosingEventArgs e)
        {
            if(e.CloseReason== CloseReason.UserClosing && progressBar1.Value!=100) 
            { IsExit = true; e.Cancel = true; }
        }
        private Dictionary<int, IFTP> dict_ftp = new Dictionary<int, IFTP>();
        public IFTP GetFTP(FTPInfo ftpinfo, out int result, out string err_msg)
        {
            var ftpid = ftpinfo.Id;
            err_msg = "";
            if (dict_ftp.ContainsKey(ftpid))
            {
                var ftp = dict_ftp[ftpid];
                if (ftp.IsOpen)
                {
                    result = 1;
                    return ftp;
                }
                else
                {
                    ftp.Close();
                    var ftp2 = new FTPop.FTPWinSCP();
                    ftp2.FileTransferProgress += Ftp_FileTransferProgress;
                    result = ftp2.Open(ftpinfo);
                    err_msg = ftp2.ErrorMsg;
                    dict_ftp[ftpid] = ftp2;
                    return ftp2;
                }
            }
            else
            {
                var ftp = new FTPop.FTPWinSCP();
                ftp.FileTransferProgress += Ftp_FileTransferProgress;
                result = ftp.Open(ftpinfo);
                err_msg = ftp.ErrorMsg;
                dict_ftp[ftpid] = ftp;
                return ftp;
            }
        }
        private void FrmDownProg_Shown(object sender, EventArgs e)
        {
            ProgAll.Maximum = DownList.Count;
            Thread th = new Thread(Start);
            th.Start();
            void Start()
            {
                var error = 0;               
                for (int i = 0; i < DownList.Count; i++)
                {
                    var item = DownList[i];
                    if (IsExit) { break; }
                    FTPop.FTPWinSCP ftp = (FTPop.FTPWinSCP)GetFTP(item.FtpInfo, out var result, out var err_msg);
                    this.Invoke(new Action(() =>
                    {
                        ProgAll.Value = i;
                        label1.Text = "正在登录FTP...";
                    }));
                    if (result == 1)
                    {
                        this.Invoke(new Action(() =>
                        {
                            label1.Text = "正在下载文件...";
                        }));                        
                        if (!ftp.FileExists(item.RemotePath))
                        {
                            error++;
                            this.Invoke(new Action(() =>
                            {
                                MessageBox.Show("远程文件不存在=>" + item.RemotePath, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); 
                            }));
                            continue;
                        }
                        else
                        {
                            if (item.LocalPath.Length > 0 && RyFiles.FileOrDirExist(item.LocalPath))
                            {
                                var remote_fileinfo = ftp.GetFileInfo(item.RemotePath);
                                if (remote_fileinfo.LastWriteTime != DateTime.MinValue)
                                {
                                    bool goto_next = false;
                                    if (remote_fileinfo.LastWriteTime.ToInt64() < RyFiles.GetFileDate(item.LocalPath).LastWriteTime.ToInt64())
                                    {
                                        this.Invoke(new Action(() =>
                                        {
                                            switch (MessageBox.Show("当前本地文件的修改日期比远程服务器新,是否要替换?\r\n\r\n" + item.LocalPath, "询问", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2))
                                            {
                                                case DialogResult.No:
                                                    error++;
                                                    goto_next = true;
                                                    break;
                                            } 
                                        }));
                                    }
                                    else if (RyFiles.GetFileDate(item.LocalPath).LastWriteTime.ToInt64() == remote_fileinfo.LastWriteTime.ToInt64())
                                    {
                                        if (RyFiles.GetFileSize(item.LocalPath) != remote_fileinfo.Length)
                                        {
                                            this.Invoke(new Action(() =>
                                            {
                                                switch (MessageBox.Show("当前本地文件与服务器文件日期一致,但大小不一致,是否要替换?\r\n\r\n本地:" + RyFiles.GetFileSizeStr(item.LocalPath) + "=>服务器:" + RyFiles.GetFileSizeStr(remote_fileinfo.Length), "询问", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2))
                                                {
                                                    case DialogResult.No:
                                                        error++;
                                                        goto_next = true;
                                                        break;
                                                } 
                                            }));
                                        }
                                    }
                                    if (goto_next) { continue; }
                                }
                            }
                        }
                        if (ftp.Download(item.RemotePath, item.LocalPath) == 1)
                        {
                            this.Invoke(new Action(() => {
                                FrmMainEditor.MainEditor.UpdateFileState(item.LocalPath); 
                            }));
                        }
                        else
                        {
                            this.Invoke(new Action(() =>
                            {
                                MessageBox.Show("下载失败=>" + item.RemotePath + "\r\n" + ftp.ErrorMsg, "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                                error++;
                            }));
                        }
                    }
                    else
                    {
                        this.Invoke(new Action(() =>
                        {
                            MessageBox.Show("FTP登录失败=>"+item.LocalPath+"\r\n"+ err_msg, "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                            error++;
                        }));
                    }
                }
                foreach (var item in dict_ftp)
                {
                    item.Value.FileTransferProgress -= Ftp_FileTransferProgress;
                    item.Value.Close();
                }
                this.Invoke(new Action(() =>
                {
                    ProgAll.Value = ProgAll.Maximum;
                    if (error == 0 && !IsExit)
                    {
                        DialogResult = DialogResult.OK;
                    }
                    else
                    {
                        DialogResult = DialogResult.No;
                    } 
                }));
            }
        }

        private void Ftp_FileTransferProgress(object sender, FTPop.FileTransferProgressEventArgs e)
        {
            if (IsExit)
            {
                e.Cancel = IsExit;
            }
            this.Invoke(new Action(() =>
            {
                progressBar1.Value = (e.FileProgress*100).ToInt(); 
            }));
        }

        private void FrmDownProg_Load(object sender, EventArgs e)
        {
            if (Itrycn_Db.WinSCP_IsRunning())
            {
                MessageBox.Show("检测到外部FTP相关软件正在运行,可能运行不稳定。", "警告", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
}