using ICSSoft.ERPWMS.Entity;
using Microsoft.IdentityModel.Protocols;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ICSSoft.ERPWMS.SQL
{
    public class GetToken
    {
        /// <summary>
        /// 返回值
        /// </summary>

        public string Get(ICSLogin infos)
        {

            ICSLogin szJson = new ICSLogin();
            DataTable dt = null;
            string json = "";
            if (string.IsNullOrWhiteSpace(infos.LoginID))
            {
                throw new Exception("传入参数为空！");
            }
            if (string.IsNullOrWhiteSpace(infos.Secret))
            {
                throw new Exception("密码为空！");
            }
            string res = string.Empty;

            try
            {
                string sql = string.Empty;

                sql = @"SELECT  StartTime,Time,Authkey  from Cust_ICSLogin	where LoginID='" + infos.LoginID + "' and Secret='" + infos.Secret + "'";
                if (infos.Type=="ERP")
                {
                    dt = ICSHelper.GetDataTableERP(sql);
                }
                else
                {
                    dt = ICSHelper.GetDataTable(sql);
                }
                
                //json = JsonConvert.SerializeObject(dt);
                if (dt.Rows.Count <= 0 || dt == null)
                    throw new Exception("传入账号有误，请核对！");
                else
                {
                    if (!string.IsNullOrWhiteSpace(dt.Rows[0]["StartTime"].ToString()))
                    {
                        DateTime dtime = Convert.ToDateTime(dt.Rows[0]["StartTime"].ToString());
                        int Time = Convert.ToInt32(dt.Rows[0]["Time"].ToString());

                        if (DateTime.Now < dtime.AddMinutes(Time))
                        {
                            json = dt.Rows[0]["Authkey"].ToString();
                        }
                        else
                        {
                            string charset = "UTF-8";
                            string content = infos.LoginID + infos.Secret + DateTime.Now;
                            string key = "ICS999";
                            json = DoSign(content, key, charset);
                            if (!string.IsNullOrWhiteSpace(json))
                            {
                                sql = @"UPDATE  Cust_ICSLogin SET Authkey ='" + json + "',StartTime='" + DateTime.Now + "'  WHERE LoginID='" + infos.LoginID + "' and  Secret='" + infos.Secret + "'";
                                if (infos.Type == "ERP")
                                {
                                    ICSHelper.ExecuteDateERP(sql);//修改包涵拓展(公共段19)
                                }
                                else
                                {
                                    ICSHelper.ExecuteDate(sql);//修改包涵拓展(公共段19)
                                }
                            }
                        }

                    }
                }


                return json;
            }
            catch (Exception ex)
            {

                throw new Exception(ex.Message);
            }

        }



        public bool Check(string Authkey,string Type)
        {
            bool isfalse = false;
            DataTable dt = new DataTable();

            try
            {
                string IsOpenKey =ICSHelper.ReadConfig(ICSHelper.FileNameCompanyCon)["IsOpenKey"].ToString();
                if (IsOpenKey=="true")
                {
                    string sql = @"SELECT   Time  from  Cust_ICSLogin  WHERE Authkey='" + Authkey + "'   ";
                    if (Type== "ERP")
                    {
                        dt = ICSHelper.GetDataTableERP(sql);
                    }
                    else
                    {
                        dt = ICSHelper.GetDataTable(sql);
                    }
                    
                    if (dt != null && dt.Rows.Count > 0)
                    {
                        string _Time = dt.Rows[0][0].ToString();
                        int ___Time = Int32.Parse(_Time);
                        int a = 0;
                        string sqlAsy = @"SELECT   COUNT(*)  from  Cust_ICSLogin  WHERE Authkey='" + Authkey + "' AND StartTime>'" + DateTime.Now.AddMinutes(-___Time) + "'";
                        if (Type == "ERP")
                        {
                            dt = ICSHelper.GetDataTableERP(sqlAsy);
                        }
                        else
                        {
                            dt = ICSHelper.GetDataTable(sqlAsy);
                        }
                        
                        //json = JsonConvert.SerializeObject(dt);
                        if (dt.Rows.Count <= 0 || dt == null)
                            throw new Exception("Authkey已失效，请重新获取！");
                        else
                        {
                            a = Int32.Parse(dt.Rows[0][0].ToString());
                        }
                        if (a > 0)
                            isfalse = true;
                    }
                    else
                    {
                        throw new Exception("Authkey已失效，请重新获取！");
                    }
                }
                else
                    isfalse = true;
                return isfalse;
            }
            catch (Exception ex)
            {

                throw new Exception(ex.Message);
            }

        }







        /// <summary>
        /// 请求报文签名
        /// </summary>
        /// <param name="content">内容参数</param>
        /// <param name="charset">编码格式</param>
        /// <param name="key">key值</param>
        /// <returns></returns>
        public static string DoSign(string content, string key, string charset = "UTF-8")
        {
            string sign;
            content = content + key;
            //md5加密
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] b = md5.ComputeHash(Encoding.GetEncoding(charset).GetBytes(content));
            //base64编码
            sign = Convert.ToBase64String(b).Trim();
            return sign;
        }

        public class ICSLogin
        {
            public string Secret;
            public string LoginID;
            public string Type;
        }
    }
}