using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Web;
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using CY.Infrastructure.Common;
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namespace CY.WebForm.Pages.sysInquiry
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{
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/// <summary>
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/// CalculatePaperPriceHandler 的摘要说明
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/// </summary>
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public class CalculatePaperPriceHandler : IHttpHandler
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{
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public void ProcessRequest(HttpContext context)
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{
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string paperSize = string.Empty;
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int? gramWeight = null;
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decimal? tonsPrice = null;
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decimal? reamPrice = null;
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paperSize = context.Request.Params["paperSize"].ToString();
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if (!string.IsNullOrEmpty(context.Request.Params["gramWeight"].ToString()))
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{
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gramWeight = int.Parse(context.Request.Params["gramWeight"].ToString());
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}
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if (!string.IsNullOrEmpty(context.Request.Params["tonsPrice"].ToString()))
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{
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tonsPrice = Convert.ToDecimal(context.Request.Params["tonsPrice"].ToString());
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}
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if (!string.IsNullOrEmpty(context.Request.Params["reamPrice"].ToString()))
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{
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reamPrice = Convert.ToDecimal(context.Request.Params["reamPrice"].ToString());
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}
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context.Response.Write(CalculatePaperPrice(paperSize, gramWeight, tonsPrice, reamPrice));
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context.Response.End();
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}
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/// <summary>
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/// 纸价转换计算
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/// </summary>
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/// <param name="paperSize">纸张尺寸</param>
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/// <param name="gramgramWeight">克重</param>
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/// <param name="tonsPrice">吨价</param>
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/// <param name="reamPrice">令价</param>
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/// <returns>前台显示json字符串</returns>
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public string CalculatePaperPrice(string paperSize, int? gramWeight, decimal? tonsPrice, decimal? reamPrice)
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{
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//纸张单价
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decimal? price = 0;
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//令重
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decimal? reamWeight = 0;
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//令数
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double? reamNumber = 0;
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string html = "";
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if (gramWeight != null)
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{
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if (reamPrice == null)
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{
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if (!string.IsNullOrEmpty(paperSize) && gramWeight != null && tonsPrice != null)
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{
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string[] paperSizes = paperSize.Split('×');
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double widht = paperSizes[0].ToDouble2().Value / 1000;
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double height = paperSizes[1].ToDouble2().Value / 1000;
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double _gramWeight = gramWeight.ToDouble2().Value / 1000;
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double area = widht * height;
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price = (area * _gramWeight * (tonsPrice.ToDouble2() / 1000)).ToDecimal2();
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reamWeight = (widht * height * _gramWeight * 500).ToDecimal2();
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reamWeight = reamWeight.ToDecimal2();
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reamNumber = (1000 / reamWeight).ToDouble2().Value.ToString("0.00").ToDouble2();
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reamPrice = price * 500;
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}
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}
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else
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{
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if (!string.IsNullOrEmpty(paperSize) && gramWeight != null && reamPrice != null)
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{
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string[] paperSizes = paperSize.Split('×');
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double widht = paperSizes[0].ToDouble2().Value / 1000;
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double height = paperSizes[1].ToDouble2().Value / 1000;
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double _gramWeight = gramWeight.ToDouble2().Value / 1000;
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double area = (widht * height) / 2;
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price = reamPrice / 500;
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tonsPrice = (reamPrice.ToDouble2() / (area.ToDouble2() * (gramWeight.ToDouble2())) * 1000).ToDecimal2();
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tonsPrice = tonsPrice.ToDecimal2();
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reamWeight = (widht * height * _gramWeight * 500).ToDecimal2();
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reamWeight = reamWeight.ToDecimal2();
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reamNumber = (1000 / reamWeight).ToDouble2().Value.ToString("0.00").ToDouble2();
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}
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}
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}
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else
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{
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string[] paperSizes = paperSize.Split('×');
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double widht = paperSizes[0].ToDouble2().Value / 1000;
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double height = paperSizes[1].ToDouble2().Value / 1000;
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double area = (widht * height) / 2;
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price = reamPrice / 500;
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gramWeight = ((reamPrice.ToDouble2() / (tonsPrice.ToDouble2() / 1000)) / area).ToInt32();
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double _gramWeight = gramWeight.ToDouble2().Value / 1000;
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reamWeight = (widht * height * _gramWeight * 500).ToDecimal2();
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reamWeight = reamWeight.ToDecimal2();
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reamNumber = (1000 / reamWeight).ToDouble2().Value.ToString("0.00").ToDouble2();
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}
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html = paperSize + "|" + gramWeight.ToDecimal2Yen() + "|" + reamWeight.ToDecimal2Yen() + "|" + reamNumber.ToDecimal2Yen() + "|" + tonsPrice.ToDecimal2Yen() + "|" + reamPrice.ToDecimal2Yen() + "|" + price.ToDecimal2Yen();
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return html;
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}
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public bool IsReusable
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{
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get
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{
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return false;
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}
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}
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}
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}
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