using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using AirWheel.Cycling.Domain;
using AirWheel.Cycling.Common;
using AirWheel.Cycling.Service.IService;
using AirWheel.Cycling.Common.Enums;
using AirWheel.Cycling.WebPage.Controllers;

namespace AirWheel.Cycling.WebPage.Areas.ComManage.Controllers
{
    public class DownloadController : BaseController
    {
        #region 声明容器
        /// <summary>
        /// 下载管理
        /// </summary>
        IDownloadManage DownloadManage { get; set; }
        /// <summary>
        /// 上传的文件记录
        /// </summary>
        IUploadManage UploadManage { get; set; }

        #endregion

        #region 公共变量
        //文件ID
        string fileid = string.Empty;
        #endregion

        #region 基本视图
        /// <summary>
        /// 加载首页
        /// </summary>
        [UserAuthorizeAttribute(ModuleAlias = "Download", OperaAction = "View")]
        public ActionResult Index()
        {
            ViewBag.Search = base.keywords;
            return View(BindList());
        }
        /// <summary>
        /// 查询列表方法
        /// </summary>
        private PageInfo BindList()
        {
            var config = this.DownloadManage.Config;
            var query = (from r in config.COM_DOWNLOAD
                         join u in config.COM_UPLOAD on r.FK_UPID equals u.ID
                         select new
                             {
                                 r.ID,
                                 r.DLDATE,
                                 r.DLIP,
                                 r.DLNUM,
                                 r.DLOPERATOR,
                                 r.FK_UPID,
                                 r.FK_USERID,
                                 FILENAME = u.UPOLDNAME,
                                 u.UPFILEPATH
                             });
            if (!string.IsNullOrEmpty(base.keywords))
            {
                query = query.Where(p => p.DLOPERATOR.Contains(keywords));
            }
            return this.DownloadManage.Query(query, base.page, base.pagesize);
        }
        /// <summary>
        /// 加载详情
        /// </summary>
        [UserAuthorizeAttribute(ModuleAlias = "Download", OperaAction = "Detail")]
        public ActionResult Detail(string id) 
        {
            var entity = this.DownloadManage.Get(p => p.ID == id) ?? new COM_DOWNLOAD();
            return View(entity);
        }
        #endregion

        #region 其他调用
        /// <summary>
        /// 用户下载功能
        /// </summary>
        [UserAuthorizeAttribute(ModuleAlias = "Download", OperaAction = "Download")]
        public ActionResult DownLoadFile()
        {
            fileid = Request.QueryString["file"];
            //文件ID
            if (string.IsNullOrEmpty(fileid))
            {
                Response.Write("<script>alert('^未找到要下载的文件');window.opener=null;window.open('', '_self', ''); window.close();</script>");
                Response.End();
            }
            //查找文件ID是否存在
            var file = this.UploadManage.Get(p => p.ID == fileid);
            if (file == null)
            {
                Response.Write("<script>alert('未找到要下载的文件');window.opener=null;window.open('', '_self', ''); window.close();</script>");
                Response.End();
            }
            //根据文件路径判断文件是否存在
            if (!System.IO.File.Exists(Server.MapPath(file.UPFILEPATH)))
            {
                Response.Write("<script>alert('下载的文件不存在');window.opener=null;window.open('', '_self', ''); window.close();</script>");
                //记录日志，文件缺失
                WriteLog(enumOperator.Files, "文件丢失，文件原始名称：" + file.UPOLDNAME + "路径" + file.UPFILEPATH,enumLog4net.ERROR);
                Response.End();
            }
            //记录下载数据
            this.DownloadManage.Save(new COM_DOWNLOAD()
            {
                ID = Guid.NewGuid().ToString(),
                FK_UPID = fileid,
                FK_USERID = this.CurrentUser.Id,
                DLDATE = DateTime.Now,
                DLIP = Utils.GetIP(),
                DLOPERATOR = this.CurrentUser.Name,
                DLNUM = 1
            });
            //跳转文件路径，进行浏览器下载
            Response.Redirect(file.UPFILEURL + file.UPFILEPATH, true);
            return new EmptyResult();
        }
        #endregion
    }
}