using System;
using System.Collections.Specialized;
using System.IO;
using System.Net;
using System.Text;

namespace HNWD.Pregrant.Common
{
    public class clsWebService
    {
        private string webServerIP = string.Empty;

        private WebClient webClient = new WebClient();

        public clsWebService(string webServerIP)
        {
            this.webServerIP = webServerIP;
            webClient.Credentials = CredentialCache.DefaultCredentials;
            webClient.Encoding = System.Text.Encoding.GetEncoding("UTF-8");
        }

        public string WebServerIP
        {
            get { return this.webServerIP; }
            set { this.webServerIP = value; }
        }

        public string HttpServer
        {
            get { return "http://" + this.webServerIP + "/"; }
        }

        public string GetDataString(string subURL, string strPostData)
        {
            Byte[] bytes = Encoding.GetEncoding("UTF-8").GetBytes(strPostData.ToString());
            webClient.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
            webClient.Headers.Add("ContentLength", strPostData.Length.ToString());

            return Encoding.UTF8.GetString(webClient.UploadData(this.HttpServer + subURL, "POST", bytes));
        }

        public string GetDataString(string subURL, NameValueCollection nameValueCollection)
        {
            webClient.Headers.Add("Content-Type", "application/x-www-form-urlencoded");

            return Encoding.UTF8.GetString(webClient.UploadValues(this.HttpServer + subURL, "POST", nameValueCollection));
        }

        public string GetDataString(string subURL)
        {
            return Encoding.UTF8.GetString(webClient.DownloadData(new System.Uri(this.HttpServer + subURL)));
        }

        public Boolean GetDataFile(string subURL, string FileName)
        {
            bool bRes = false;

            if (File.Exists(FileName))
            {
                File.Delete(FileName);
            }

            webClient.DownloadFile(this.HttpServer + subURL, FileName);

            if (File.Exists(FileName))
            {
                bRes = true;
            }

            return bRes;
        }
    }
}