using Learun.Application.Base.SystemModule;
using Learun.Util;
using Nancy;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq.Expressions;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Web.Mvc;
using System.Web.WebSockets;
using Learun.Application.Organization;
using Learun.Application.TwoDevelopment.EducationalAdministration;
using Learun.Application.TwoDevelopment.LR_Desktop;
using Learun.Util.Operat;
using Nancy.ModelBinding;
using Nancy.Responses;
using Newtonsoft.Json;

namespace Learun.Application.WebApi.Modules
{
    public class WeixinApi : BaseNoAuthentication
    {
        private UserIBLL userIbll = new UserBLL();
        private PostIBLL postIBLL = new PostBLL();
        private RoleIBLL roleIBLL = new RoleBLL();
        private StuInfoBasicIBLL stuInfoBasicIBLL = new StuInfoBasicBLL();
        private WeChatConfigIBLL weChatConfigIbll = new WeChatConfigBLL();
        LR_Base_LogoIBLL baseLogoIbll = new LR_Base_LogoBLL();
        CdMajorIBLL majorIbll = new CdMajorBLL();
        public WeixinApi()
            : base("/weixinapi")
        {
            Get["/weixinconfig"] = GetWeixinConfig;
            Post["/getweixinaccess_token"] = GetWeixinAccess_token;
            Post["/login"] = Login;
            Get["/getweixinwebaccess_token"] = GetWeixinWebaccess_token;
            //获取ACIp
            Get["/GetACIp"] = GetACIp;
            //获取logo
            Get["/GetLogo"] = GetImg;
        }

        public Response GetImg(dynamic _)
        {
            string code = Request.Query["code"];
            string rootPath = ConfigurationManager.AppSettings["AnnexesFile"] + "\\";
            string midPath = "Content/images/logo";
            try
            {
                LR_Base_LogoEntity logoEntity = baseLogoIbll.GetLR_Base_LogoEntityByCode(code);
                if (logoEntity != null)
                {
                    return new GenericFileResponse(logoEntity.F_FileName, "image/jpeg");
                }
                else
                {
                    switch (code)
                    {
                        case "default":
                            return new GenericFileResponse(Path.Combine(rootPath, midPath, "default.png"), "image/jpeg");
                        case "accordion":
                            return new GenericFileResponse(Path.Combine(rootPath, midPath, "accordion.png"), "image/jpeg");
                        case "windows":
                            return new GenericFileResponse(Path.Combine(rootPath, midPath, "windows.png"), "image/jpeg");
                        case "top":
                            return new GenericFileResponse(Path.Combine(rootPath, midPath, "top.png"), "image/jpeg");
                        case "applogo":
                            return new GenericFileResponse(Path.Combine(rootPath, midPath, "applogo.png"), "image/jpeg");
                    }
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
            return null;
        }

        public Response GetACIp(dynamic _)
        {
            string Ip = GetIP();
            string ACIp = ConfigurationManager.AppSettings["ACIp"] ?? "";
            string ACIp2 = ConfigurationManager.AppSettings["ACIp2"] ?? "";
            return Success(new
            {
                Ip,
                ACIp,
                ACIp2
            });
        }
        public Response GetWeixinConfig(dynamic _)
        {
            var entity = weChatConfigIbll.GetEnableEntity();
            string appid = entity?.APPId;
            string secret = entity?.secret;
            return Success(new { appid, secret });
        }

        public Response GetWeixinAccess_token(dynamic _)
        {
            var entity = weChatConfigIbll.GetEnableEntity();
            string appid = entity?.APPId;
            string secret = entity?.secret;

            string code = Request.Query["code"];
            var responsejson = HttpGet("https://api.weixin.qq.com/sns/oauth2/access_token?appid=" + appid + "&secret=" + secret + "&code=" + code + "&grant_type=authorization_code");
            LogEntity logEntity = new LogEntity();
            logEntity.F_CategoryId = 1234;
            logEntity.F_OperateTypeId = ((int)OperationType.Visit).ToString();
            logEntity.F_OperateType = EnumAttribute.GetDescription(OperationType.Visit);
            logEntity.F_OperateAccount = "wxlogin:access_token";
            logEntity.F_OperateUserId = "wxlogin:access_token";
            logEntity.F_Module = "wxlogin:access_token";
            logEntity.F_Description = "wxlogin:access_token";
            logEntity.F_SourceContentJson = responsejson;
            logEntity.WriteLog();
            if (!string.IsNullOrEmpty(responsejson))
            {
                var weixintokenobj = JsonConvert.DeserializeObject<dynamic>(responsejson);
                if (string.IsNullOrEmpty(weixintokenobj.errcode))
                {
                    string openid = weixintokenobj.openid;
                    var userEntity = userIbll.GetEntityByWeixinOpenId(openid);
                    if (userEntity != null)
                    {
                        ReqParameter req = this.Bind<ReqParameter>();
                        string token = OperatorHelper.Instance.AddLoginUser(userEntity.F_Account, "Learun_ADMS_6.1_App", req.loginMark, false);//写入缓存信息
                        #region 写入日志
                        logEntity = new LogEntity();
                        logEntity.F_CategoryId = 1;
                        logEntity.F_OperateTypeId = ((int)OperationType.Login).ToString();
                        logEntity.F_OperateType = EnumAttribute.GetDescription(OperationType.Login);
                        logEntity.F_OperateAccount = userEntity.F_Account + "(" + userEntity.F_RealName + ")";
                        logEntity.F_OperateUserId = !string.IsNullOrEmpty(userEntity.F_UserId) ? userEntity.F_UserId : userEntity.F_Account;
                        logEntity.F_Module = Config.GetValue("SoftName");
                        logEntity.F_Description = "移动端";
                        #endregion
                        //写入日志
                        logEntity.F_ExecuteResult = 1;
                        logEntity.F_ExecuteResultJson = "登录成功";
                        logEntity.WriteLog();

                        OperatorResult res = OperatorHelper.Instance.IsOnLine(token, req.loginMark);
                        res.userInfo.password = null;
                        res.userInfo.secretkey = null;
                        var studententity = stuInfoBasicIBLL.GetStuInfoBasicEntityByStuNo(userEntity.F_Account);
                        if (studententity != null)
                        {
                            res.userInfo.grade = studententity.Grade;
                            var majorinfo = majorIbll.GetCdMajorEntityByMajorNo(studententity.MajorNo);
                            if (majorinfo != null)
                            {
                                res.userInfo.majorno = majorinfo.ID ?? "";
                            }

                        }
                        var jsonData = new
                        {
                            logined = true,
                            baseinfo = res.userInfo,
                            post = postIBLL.GetListByPostIds(res.userInfo.postIds),
                            role = roleIBLL.GetListByRoleIds(res.userInfo.roleIds)
                        };
                        return Success(jsonData);
                    }
                    else
                    {
                        return Success(JsonConvert.DeserializeObject(responsejson));
                    }
                }
                else
                {
                    return Fail("微信授权失败，请重试。");
                }
            }
            return Fail("微信授权失败，请重试。");
        }

        private Response Login(dynamic _)
        {
            LoginModel loginModel = this.GetReqData<LoginModel>();

            #region 内部账户验证
            UserEntity userEntity = userIbll.CheckLogin(loginModel.username, loginModel.password);

            #region 写入日志
            LogEntity logEntity = new LogEntity();
            logEntity.F_CategoryId = 1;
            logEntity.F_OperateTypeId = ((int)OperationType.Login).ToString();
            logEntity.F_OperateType = EnumAttribute.GetDescription(OperationType.Login);
            logEntity.F_OperateAccount = loginModel.username + "(" + userEntity.F_RealName + ")";
            logEntity.F_OperateUserId = !string.IsNullOrEmpty(userEntity.F_UserId) ? userEntity.F_UserId : loginModel.username;
            logEntity.F_Module = Config.GetValue("SoftName");
            logEntity.F_Description = "移动端";
            #endregion

            if (!userEntity.LoginOk)//登录失败
            {
                //写入日志
                logEntity.F_ExecuteResult = 0;
                logEntity.F_ExecuteResultJson = "登录失败:" + userEntity.LoginMsg;
                logEntity.WriteLog();
                return Fail(userEntity.LoginMsg);
            }
            else
            {
                ReqParameter req = this.Bind<ReqParameter>();
                string token = OperatorHelper.Instance.AddLoginUser(userEntity.F_Account, "Learun_ADMS_6.1_App", req.loginMark, false);//写入缓存信息
                //写入日志
                logEntity.F_ExecuteResult = 1;
                logEntity.F_ExecuteResultJson = "登录成功";
                logEntity.WriteLog();
                OperatorResult res = OperatorHelper.Instance.IsOnLine(token, req.loginMark);
                res.userInfo.password = null;
                res.userInfo.secretkey = null;
                var studententity = stuInfoBasicIBLL.GetStuInfoBasicEntityByStuNo(userEntity.F_Account);
                if (studententity != null)
                {
                    res.userInfo.grade = studententity.Grade;
                    var majorinfo = majorIbll.GetCdMajorEntityByMajorNo(studententity.MajorNo);
                    if (majorinfo != null)
                    {
                        res.userInfo.majorno = majorinfo.ID ?? "";
                    }

                }
                //是否强密码验证
                bool pwd = false;
                if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings["verifypwd"]) && ConfigurationManager.AppSettings["verifypwd"] == "true" && loginModel.up == false)
                {
                    pwd = true;
                }
                else
                {
                    //保存用户设备号
                    userIbll.UpdateWeixinOpenId(userEntity.F_UserId, loginModel.openid);
                }
                var jsonData = new
                {
                    baseinfo = res.userInfo,
                    post = postIBLL.GetListByPostIds(res.userInfo.postIds),
                    role = roleIBLL.GetListByRoleIds(res.userInfo.roleIds),
                    pwd = pwd
                };
                return Success(jsonData);
            }
            #endregion
        }

        public Response GetWeixinWebaccess_token(dynamic _)
        {
            var entity = weChatConfigIbll.GetEnableEntity();
            string appid = entity?.APPId;
            string secret = entity?.secret;
            string url = Request.Query["url"];
            var responsejson = HttpGet("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appid + "&secret=" + secret);
            if (!string.IsNullOrEmpty(responsejson))
            {
                var weixintokenobj = JsonConvert.DeserializeObject<dynamic>(responsejson);
                if (string.IsNullOrEmpty(weixintokenobj.errcode))
                {
                    string access_token = weixintokenobj.access_token;
                    string jsapi_ticket = HttpGet("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + access_token + "&type=jsapi");
                    var weixinjsapiticketobj = JsonConvert.DeserializeObject<dynamic>(jsapi_ticket);
                    if (weixinjsapiticketobj.errcode == 0)
                    {
                        string ticket = weixinjsapiticketobj.ticket;
                        //生成签名
                        string noncestr = Util.CommonHelper.CreateNo();
                        string timestamp = GetTimeStamp(true);
                        string param = "jsapi_ticket=" + ticket + "&noncestr=" + noncestr + "&timestamp=" + timestamp + "&url=" + url;
                        string certificate = SHA1(param).ToLower();
                        return Success(new { appid, noncestr, timestamp, certificate });
                    }
                    else
                    {
                        return Fail("微信授权失败，请重试。" + weixinjsapiticketobj.errcode + weixinjsapiticketobj.errmsg);
                    }
                }
                else
                {
                    return Fail("微信授权失败，请重试。" + weixintokenobj.errcode + weixintokenobj.errmsg);
                }
            }
            else
            {
                return Fail("微信授权失败，请重试。");
            }
        }

        /// <summary>
        /// 发起一个HTTP请求（以GET方式）
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        public string HttpGet(string url)
        {
            WebRequest myWebRequest = WebRequest.Create(url);
            WebResponse myWebResponse = myWebRequest.GetResponse();
            Stream ReceiveStream = myWebResponse.GetResponseStream();
            string responseStr = "";
            if (ReceiveStream != null)
            {
                StreamReader reader = new StreamReader(ReceiveStream, Encoding.UTF8);
                responseStr = reader.ReadToEnd();
                reader.Close();
            }
            myWebResponse.Close();
            return responseStr;
        }
        /// <summary>  
        /// 获取当前时间戳  
        /// </summary>  
        /// <param name="bflag">为真时获取10位时间戳,为假时获取13位时间戳.bool bflag = true</param>  
        /// <returns></returns>  
        public static string GetTimeStamp(bool bflag)
        {
            TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            string ret = string.Empty;
            if (bflag)
                ret = Convert.ToInt64(ts.TotalSeconds).ToString();
            else
                ret = Convert.ToInt64(ts.TotalMilliseconds).ToString();

            return ret;
        }
        // <summary>
        /// SHA1 加密，返回大写字符串
        /// </summary>
        /// <param name="content">需要加密字符串</param>
        /// <returns>返回40位UTF8 大写</returns>
        public static string SHA1(string content)
        {
            return SHA1(content, Encoding.UTF8);
        }
        /// <summary>
        /// SHA1 加密，返回大写字符串
        /// </summary>
        /// <param name="content">需要加密字符串</param>
        /// <param name="encode">指定加密编码</param>
        /// <returns>返回40位大写字符串</returns>
        public static string SHA1(string content, Encoding encode)
        {
            try
            {
                SHA1 sha1 = new SHA1CryptoServiceProvider();
                byte[] bytes_in = encode.GetBytes(content);
                byte[] bytes_out = sha1.ComputeHash(bytes_in);
                sha1.Dispose();
                string result = BitConverter.ToString(bytes_out);
                result = result.Replace("-", "");
                return result;
            }
            catch (Exception ex)
            {
                throw new Exception("SHA1加密出错：" + ex.Message);
            }
        }
        /// <summary>
        /// 获取IP
        /// </summary>
        /// <returns></returns>
        private string GetIP()
        {
            //string ip = string.Empty;
            //if (!string.IsNullOrEmpty(System.Web.HttpContext.Current.Request.ServerVariables["HTTP_VIA"]))
            //    ip = Convert.ToString(System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]);
            //if (string.IsNullOrEmpty(ip))
            //    ip = Convert.ToString(System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]);
            //return ip;
            string userIP = "未获取用户IP";

            try
            {
                if (System.Web.HttpContext.Current == null
                    || System.Web.HttpContext.Current.Request == null
                    || System.Web.HttpContext.Current.Request.ServerVariables == null)
                {
                    return "";
                }

                string CustomerIP = "";

                //CDN加速后取到的IP simone 090805
                CustomerIP = System.Web.HttpContext.Current.Request.Headers["Cdn-Src-Ip"];
                if (!string.IsNullOrEmpty(CustomerIP))
                {
                    return CustomerIP;
                }

                CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

                if (!string.IsNullOrEmpty(CustomerIP))
                {
                    return CustomerIP;
                }

                if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
                {
                    CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

                    if (CustomerIP == null)
                    {
                        CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
                    }
                }
                else
                {
                    CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
                }

                if (string.Compare(CustomerIP, "unknown", true) == 0 || string.IsNullOrEmpty(CustomerIP))
                {
                    return System.Web.HttpContext.Current.Request.UserHostAddress;
                }
                return CustomerIP;
            }
            catch { }

            return userIP;
        }
    }
}