using System;
using System.Security.Cryptography;
using System.Text;
using System.Web.Services;
using System.Web.Script.Services;
using WebLib;

namespace 報到系統
{
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    [ScriptService]
    public class BPSNService : System.Web.Services.WebService
    {
        /// <summary>
        /// 下載員工資料
        /// </summary>
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public BaseResponse Download()
        {
            try
            {
                DAC_BPSN dac = new DAC_BPSN();
                BPSNList result = dac.SelectForClient();
                
                // 因為決定客戶端離線模式不驗證密碼，所以不把密碼雜湊值傳給客戶端了
                //foreach (var item in result) 
                //{
                //    string decryptedPassword = EncDec.KeyDec(item.BPAWD);
                //    string combined = item.BPENO + decryptedPassword;

                //    using (SHA1 sha1 = SHA1.Create())
                //    {
                //        byte[] hash = sha1.ComputeHash(Encoding.UTF8.GetBytes(combined));
                //        item.BPAWD = Convert.ToBase64String(hash);
                //    }
                //}

                if (result == null || result.Count == 0)
                {
                    return new BaseResponse
                    {
                        Success = true,
                        Message = "沒有員工資料",
                        Data = new BPSNList()
                    };
                }

                return new BaseResponse
                {
                    Success = true,
                    Message = "下載成功",
                    Data = result
                };
            }
            catch (Exception ex)
            {
                return new BaseResponse
                {
                    Success = false,
                    Message = "下載員工資料發生錯誤：" + ex.Message
                };
            }
        }
    }
}