using BreakpointTransmission.Client;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using Transmission.SDK;

namespace TransmissionClient
{
    public class DataFileUpload
    {
        /// <summary>
        /// 压缩文件存储文件夹
        /// </summary>
        private readonly string ZipFileDirectory = "Upload";

        /// <summary>
        /// 文件基础目录
        /// </summary>
        private string BaseDirectory { get; set; }
        /// <summary>
        /// 文件上传
        /// </summary>
        private BreakpointUploader DataBreakpointUploader { get; set; }

        /// <summary>
        /// 数据压缩包文件上传实现类
        /// </summary>
        ///<param name="fileName">站点名称</param>
        public DataFileUpload(string fileName)
        {
            if (string.IsNullOrWhiteSpace(fileName))
            {
                fileName = "PosDataUpload";
            }
            this.BaseDirectory = IISWorkerHelper.GetPhysicPath(fileName);
            DataBreakpointUploader = new BreakpointUploader(1024 * 1024 * 1, UploadType.Append);
            DataBreakpointUploader.OnUploading += Uploader_OnUploading;
        }

        /// <summary>
        /// 文件传输进度处理事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Uploader_OnUploading(object sender, UploadEventArgs e)
        {
            
        }
        /// <summary>
        /// 文件上传
        /// </summary>
        /// <param name="uploadURL">上传地址</param>
        /// <returns></returns>
        public bool UploadDataZipFile(string uploadURL)
        {
            try
            {
                //压缩文件保存的路径
                string str_ZipFileDir = Path.Combine(BaseDirectory, ZipFileDirectory);
                if (!Directory.Exists(str_ZipFileDir))
                {
                    //压缩文件不存在，直接结束
                    return false;
                }
                //读取压缩文件存储目录下全部压缩文件
                FileInfo[] file_DataFileList = new DirectoryInfo(str_ZipFileDir).GetFiles("*.zip", SearchOption.AllDirectories);
                foreach (FileInfo file_DataFile in file_DataFileList)
                {
                    //判断压缩文件是否已上传，未上传的有效压缩文件才进行上传
                    if (file_DataFile.Length > 0)
                    {
                        Internal.Header.M_Headers = new KeyValuePair<string, string>("x-file-type", HttpUtility.UrlEncode(file_DataFile.Directory.Name));
                        UploadStatus status = DataBreakpointUploader.Upload(file_DataFile.FullName, uploadURL);
                        if (status == UploadStatus.Completed)
                        {
                            //等待1秒，用于释放被传输占用的文件资源
                            System.Threading.Thread.Sleep(1000);
                            File.Move(file_DataFile.FullName, Path.Combine(BaseDirectory, "Zip", file_DataFile.Name));
                        }
                    }
                }
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.WriteServiceLog("数据文件压缩包上传失败：" + ex.Message);
                return false;
            }
        }
    }
}