using System.Collections;
using System.Text.RegularExpressions;
using System.Web;
using WX.CRM.Common;

namespace WX.CRM.WebHelper
{
    public class PageRequest
    {

        public static Pager GetGirdPager()
        {
            Pager pager = new Pager()
            {
                rows = PageRequest.GetQueryInt("rows"),
                order = PageRequest.GetQueryString("order"),
                page = PageRequest.GetQueryInt("page"),
                sort = PageRequest.GetQueryString("sort"),
                totalRows = PageRequest.GetQueryInt("totalRows")
            };

            return pager;

        }
        /// <summary>
        /// 从地址栏获取值
        /// </summary>
        /// <param name="page">页面</param>
        /// <param name="para">参数</param>
        /// <returns></returns>
        public static string GetQueryString(string para)
        {
            string queryString = "";
            if (System.Web.HttpContext.Current.Request.QueryString[para] != null)
            {
                queryString = System.Web.HttpContext.Current.Request.QueryString[para].ToString();
            }
            else
            {
                queryString = "";
            }
            return queryString.Trim();
        }

        /// <summary>
        /// 从地址栏获取相关int值
        /// </summary>
        /// <param name="page">页面</param>
        /// <param name="para">参数</param>
        /// <returns></returns>
        public static int GetQueryInt(string para)
        {
            int queryInt = 0;
            string tempQueryString = GetQueryString(para);
            if (ValidateHelper.IsNumber(tempQueryString))
            {
                queryInt = int.Parse(tempQueryString);
            }
            return queryInt;
        }
        public static long GetQueryLong(string para)
        {
            long queryInt = 0;
            string tempQueryString = GetQueryString(para);
            if (ValidateHelper.IsNumber(tempQueryString))
            {
                queryInt = long.Parse(tempQueryString);
            }
            return queryInt;
        }
        /// <summary>
        /// 不同浏览器返回不同文件下载名称
        /// </summary>
        /// <returns></returns>
        public static string GetDlownLoadName(string name)
        {
            string browser = System.Web.HttpContext.Current.Request.Browser.Browser;
            if (browser.ToUpper().IndexOf("IE") > -1 || browser.IndexOf("InternetExplorer") > -1)
                return HttpUtility.UrlEncode(name);
            return name;
        }

        /// <summary>
        /// 从参数中获取相关参数数组
        /// </summary>
        /// <param name="page"></param>
        /// <returns></returns>
        public static Hashtable GetQueryPara()
        {
            int paraCount = System.Web.HttpContext.Current.Request.QueryString.Count;
            string queryKey = "";
            string queryValue = "";
            Hashtable para = new Hashtable();
            Regex regex = new Regex("^[a-zA-z]+[_][a-zA-z]{3}[_][a-zA-z][_][a-zA-Z0-9]+$");
            for (int i = 0; i < paraCount; i++)
            {
                queryKey = System.Web.HttpContext.Current.Request.QueryString.Keys[i].ToString();
                queryValue = System.Web.HttpContext.Current.Request.QueryString[i].ToString();
                if (regex.IsMatch(queryKey) && !queryValue.Equals(""))
                {
                    para.Add(queryKey, queryValue);
                }
            }
            return para;

        }
        /// <summary>
        /// 从表单中获取相关参数数组
        /// </summary>
        /// <param name="page"></param>
        /// <returns></returns>
        public static Hashtable GetFormPara()
        {
            int paraCount = System.Web.HttpContext.Current.Request.Form.Count;
            string formKey = "";
            string formValue = "";
            Hashtable para = new Hashtable();
            Regex regex = new Regex("^[a-zA-z]+[_][a-zA-z]{3}[_][a-zA-z][_][a-zA-Z0-9]+$");
            for (int i = 0; i < paraCount; i++)
            {
                formKey = System.Web.HttpContext.Current.Request.Form.Keys[i].ToString();
                formValue = System.Web.HttpContext.Current.Request.Form[i].ToString();

                if (regex.IsMatch(formKey) && !formValue.Equals(""))
                {
                    para.Add(formKey, formValue);
                }
            }

            return para;

        }

        /// <summary>
        /// 获取参数数组
        /// </summary>
        /// <param name="page"></param>
        /// <returns></returns>
        public static Hashtable GetPara()
        {
            if (System.Web.HttpContext.Current.Request.RequestType.ToLower().Equals("get"))
            {
                return GetQueryPara();
            }
            else
            {
                return GetFormPara();
            }
        }
    }
}