using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using MESClassLibrary.BLL.Stock;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;

namespace MESWebSite.HttpHandlers
{
    /// <summary>
    /// AppendColorHandler 的摘要说明
    /// </summary>
    public class AppendColorHandler : IHttpHandler
    {
        HttpRequest Request = null;
        HttpResponse Response = null;

        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            Request = context.Request;
            Response = context.Response;

            string method = Request.Params["method"];
            switch (method)
            {

                case "QueryList":
                    QueryList();
                    break;
                case "QueryExcel":
                    QueryExcel();
                    break;
                default:
                    break;

            }
        }

        void QueryList()
        {
            string page = Request.Params["page"];
            string pagesize = Request.Params["rows"];
            string StartTime = Request.Params["StartTime"];
            string EndTime = Request.Params["EndTime"];
            string barCode = Request.Params["barCode"];

            if (string.IsNullOrEmpty(page))
            {
                page = "0";
            }
            if (string.IsNullOrEmpty(pagesize))
            {
                pagesize = "15";
            }

            AppendColorBLL bll = new AppendColorBLL();
            Response.Write(bll.SearchInfoAll(page, pagesize,barCode ,StartTime, EndTime));
            Response.End();
        }

        void QueryExcel()
        {
            string page = Request.Params["page"];
            string pagesize = Request.Params["rows"];
            string StartTime = Request.Params["StartTime"];
            string EndTime = Request.Params["EndTime"];
            string barCode = Request.Params["barCode"];

            AppendColorBLL bll = new AppendColorBLL();
            List<List<string>> list = bll.SearchForExcel(page, pagesize, barCode, StartTime, EndTime);

            XSSFWorkbook book = new XSSFWorkbook();
            ISheet sheet = book.CreateSheet("Sheet1");

            for (int i = 0; i < list.Count; i++)
            {
                IRow row = sheet.CreateRow(i);

                for (int k = 0; k < list[i].Count; k++)
                {
                    row.CreateCell(k).SetCellValue(list[i][k].ToString());
                }

            }

            // 写入到客户端  
            MemoryStream ms = new MemoryStream();
            book.Write(ms);
            Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xlsx", DateTime.Now.ToString("yyyyMMddHHmmssfff")));
            Response.BinaryWrite(ms.ToArray());
            book = null;
            ms.Close();
            ms.Dispose();
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}