using Ant.Service.Common;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace ChangFa.Machinery.WebPage.Areas.SysManage.Controllers
{
    public class WebuploadController : Controller
    {
        //
        //说明：对于上传大的文件需要在配置文件中改iis配置
        //<system.web>
        //<httpRuntime maxRequestLength = "999999999" />//用户上传文件最大体积
        //< compilation debug="true" targetFramework="4.0" />
        //</system.web>
        //<system.webServer>
        //<security>
        //<requestFiltering>
        //<requestLimits maxAllowedContentLength = "3000000000" />
        //</ requestFiltering >
        //</ security >
        //</ system.webServer >

        public WebuploadController()
        {
            var applicationPath = VirtualPathUtility.ToAbsolute("~") == "/" ? "" : VirtualPathUtility.ToAbsolute("~");
            urlPath = "/PHP";
        }

        static string urlPath = string.Empty;
        static string guid = Guid.NewGuid().ToString("N");
        static int num = 1;


        public ActionResult Process(string id, string name, string type, string lastModifiedDate, int size, HttpPostedFileBase file)
        {
            string filePathName = string.Empty;

            string localPath = Path.Combine(HttpRuntime.AppDomainAppPath, "PHP");
            if (Request.Files.Count == 0)
            {
                return Json(new { jsonrpc = 2.0, error = new { code = 102, message = "保存失败" }, id = "id" });
            }

            if (!System.IO.Directory.Exists(localPath))
            {
                System.IO.Directory.CreateDirectory(localPath);
            }

            if (size > 5242880)  //文件大于5M
            {
                return Json(new { jsonrpc = 2.0, error = new { code = 102, message = "文件不能大于5M" }, id = "id" });
            }
            string filename = Path.Combine(localPath, file.FileName);

            DirFile.DeleteGivenFile(filename);

            file.SaveAs(filename);//写入文件夹中


            if (DirFile.IsExistFile(filename))
            {
                return Json(new
                {
                    jsonrpc = "2.0",
                    id = "id",
                    filePath = filename
                });

            }
            else
            {
                return Json(new
                {
                    jsonrpc = "2.0",
                    id = "id",
                    filePath = ""
                });
            }
        }


        public ActionResult ProcessBak(string id, string name, string type, string lastModifiedDate, int size, HttpPostedFileBase file)
        {
            string filePathName = string.Empty;

            string localPath = Path.Combine(HttpRuntime.AppDomainAppPath, "PHP");
            if (Request.Files.Count == 0)
            {
                return Json(new { jsonrpc = 2.0, error = new { code = 102, message = "保存失败" }, id = "id" });
            }

            string ex = Path.GetExtension(file.FileName);
            filePathName = guid + "_" + num + ex;//分布接受（建立每个接受分段的名字）
            num++;

            if (!System.IO.Directory.Exists(localPath))
            {
                System.IO.Directory.CreateDirectory(localPath);
            }
            file.SaveAs(Path.Combine(localPath, filePathName));//写入文件夹中

            int total = size / 5242880;//判断有多少个分块
            if (size % 5242880 > 0)
            {
                total += 1;
            }

            //重组

            if (num > total)
            {
                chongzu(total, ex, guid, localPath);
            }

            return Json(new
            {
                jsonrpc = "2.0",
                id = "id",
                filePath = localPath + "/" + filePathName
            });
        }
        //重组（分片数目，接受视频类型，存储视频的名字，存放的地址）
        public void chongzu(int total, string ex, string guid, string localPath)
        {
            try
            {
                string fileurl = Path.Combine(localPath, guid + ex);
                var fs = new FileStream(fileurl, FileMode.Create);
                for (int i = 1; i <= total; ++i)
                {
                    string part = Path.Combine(localPath, guid + "_" + i + ex);
                    var bytes = System.IO.File.ReadAllBytes(part);
                    fs.Write(bytes, 0, bytes.Length);
                    bytes = null;
                    System.IO.File.Delete(part);
                }
                fs.Close();
                string filenameone = guid + ex;
            }
            catch (Exception e) { Response.Write("<script>alert('视频重组失败') </script>"); }
            finally
            {
                num = 1; guid = Guid.NewGuid().ToString("N"); //为了下个视频重置num 和 guid }
            }
        }
    }
}