using CustomerOnlineV2.Common.Helper;
using CustomerOnlineV2.Common.Models;
using CustomerOnlineV2.Common.Models.AccountModel;
using CustomerOnlineV2.Common.Models.Notification;
using CustomerOnlineV2.Repository.Repository.AccountRepository;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System.Text;
using static CustomerOnlineV2.Common.Models.Notification.PasswordGenerator;

namespace CustomerOnlineV2.Business.Business.AccountBusiness
{
    public class AccountBusiness : IAccountBusiness
    {
        private readonly ILogger<AccountBusiness> _logger;
        private readonly IAccountRepository _accountRepo;

        public AccountBusiness(ILogger<AccountBusiness> logger, IAccountRepository accountRepo)
        {
            _logger = logger;
            _accountRepo = accountRepo;
        }

        public async Task<LoginResponse> Login(LoginModel model)
        {
            return await _accountRepo.Login(model);
        }

        public async Task<CommonResponse> ChangePassword(ForceChangePasswordModel model, LoginResponse logindetails)
        {
            if (model.NewPassword != model.ConfirmNewPassword)
            {
                return new CommonResponse(ResponseHelper.FAILED, "New Password and confirm new password does not match!");
            }

            return await _accountRepo.ChangePassword(model, logindetails);
        }
        public async Task<CommonResponse> PasswordReset(PasswordResetModel model, LoginResponse logindetails)
        {
            //var randomPassword = PasswordGenerator.GenerateRandomPassword();
            //model.RandomPassword = randomPassword;


            SendNotificationRequest request = new SendNotificationRequest()
            {
                IsBulkNotification = false,
                UserName = model.Username,
                //ProcessId = processId,
                ProviderId = "ResetPassword",
                NotificationTypeId = NOTIFICATION_TYPE.EMAIL.ToString(),
                //Template = Common.Model.Enum.NotifyTemplate.RESET_PASSWORD_EMAIL,
                Recipients = new List<RecipientViewModel>()
                            {
                                new RecipientViewModel()
                                    {
                                            NotificationContent =  new NotificationDTO() {
                                               // Body = JsonConvert.SerializeObject(bodyMappings),
                                                //Title will be set by mapping json
                                            },
                                             Address= model.Username
                                    }
                            }
            };


            return await _accountRepo.PasswordReset(model, logindetails);
        }

         
        public static string GenerateRandomPassword(PasswordOptions opts = null)
        {
            if (opts == null) opts = new PasswordOptions()
            {
                RequiredLength = 8,
                RequiredUniqueChars = 4,
                RequireDigit = true,
                RequireLowercase = true,
                RequireNonAlphanumeric = true,
                RequireUppercase = true
            };

            string[] randomChars = new[] {
                "ABCDEFGHJKMNPQRSTUVWXYZ",    // uppercase 
                "abcdefghjkmnpqrstuvwxyz",    // lowercase
                "23456789",                   // digits
                "@#"                        // non-alphanumeric
            };
            string[] randomChars1 = new[] {
                   // uppercase 
                "abcdefghjkmnpqrstuvwxyz",    // lowercase
                "23456789",                   // digits
                                    // non-alphanumeric
            };
            Random rand = new Random();
            List<char> chars = new List<char>();

            if (opts.RequireUppercase)
                chars.Insert(rand.Next(0, chars.Count),
                    randomChars[0][rand.Next(0, randomChars[0].Length)]);

            if (opts.RequireLowercase)
                chars.Insert(rand.Next(0, chars.Count),
                    randomChars[1][rand.Next(0, randomChars[1].Length)]);

            if (opts.RequireDigit)
                chars.Insert(rand.Next(0, chars.Count),
                    randomChars[2][rand.Next(0, randomChars[2].Length)]);

            if (opts.RequireNonAlphanumeric)
                chars.Insert(rand.Next(0, chars.Count),
                    randomChars[3][rand.Next(0, randomChars[3].Length)]);

            for (int i = chars.Count; i < opts.RequiredLength
                || chars.Distinct().Count() < opts.RequiredUniqueChars; i++)
            {
                string rcs = randomChars1[rand.Next(0, randomChars1.Length)];

                chars.Insert(rand.Next(0, chars.Count),
                    rcs[rand.Next(0, rcs.Length)]);
            }

            return new string(chars.ToArray());
        }
      
        public async Task<JsonRxResponse> VerifyOtp(RequestOTPModel requestOTPModel, LoginResponse loginDetails)
        {
            JsonRxResponse jsonRx = new JsonRxResponse();
            try
            {
                jsonRx = await _accountRepo.VerifyOtp(requestOTPModel, loginDetails);
                _logger.LogDebug("SubmitOTP | DB RESPONSE : " + JsonConvert.SerializeObject(jsonRx));
                

                //if (jsonRx.ErrorCode.Equals("0"))
                //{
                    
                //    List<Mapping> bodyMappings = new List<Mapping>();

                //    bodyMappings.Add(new Mapping() { SValue = "CustomerName", SText = loginDetails.FullName });
                //    bodyMappings.Add(new Mapping() { SValue = "CustomerId", SText = loginDetails.MembershipId.ToString() });
                //    bodyMappings.Add(new Mapping() { SValue = "UserId", SText = loginDetails.MembershipId });
                //    bodyMappings.Add(new Mapping() { SValue = "FirstName", SText = loginDetails.FullName });
                //    bodyMappings.Add(new Mapping() { SValue = "MiddleName", SText = loginDetails.FullName });
                //    bodyMappings.Add(new Mapping() { SValue = "LastName", SText = loginDetails.FullName });
                //    bodyMappings.Add(new Mapping() { SValue = "MobileNo", SText = loginDetails.MobileNumber });
                //    bodyMappings.Add(new Mapping() { SValue = "Address", SText = loginDetails.UserName });
                //    bodyMappings.Add(new Mapping() { SValue = "EMAIL_ID", SText = loginDetails.Email });
                //    bodyMappings.Add(new Mapping() { SValue = "RegisteredDate", SText = "" });


                //    SendNotificationRequest request = new SendNotificationRequest()
                //    {
                //        IsBulkNotification = false,
                //        UserName = loginDetails.Email,
                //        ProviderId = "BasicRegistration",
                //        NotificationTypeId = NOTIFICATION_TYPE.EMAIL.ToString(),
                //        Template = NotifyTemplate.BASIC_REGISTRATION_EMAIL,
                //        Recipients = new List<RecipientViewModel>()
                //            {
                //                new RecipientViewModel()
                //                    {
                //                            NotificationContent =  new NotificationDTO() {
                //                                Body = JsonConvert.SerializeObject(bodyMappings),
                //                                //Title will be set by mapping json
                //                            },
                //                             Address= loginDetails.Email
                //                    }
                //            }
                //    };
                //    jsonRx = NotifierV2.SendNotification(request, NOTIFICATION_TYPE.EMAIL);
                //}

                //return jsonRx;
                return await Task.FromResult(jsonRx);
            }
            catch (Exception ex)
            {
                _logger.LogError("Something Went Wrong, Please Try Again!!", ex);
                jsonRx.SetResponse("1", "Error occurred while calling RequestOTP.");
                return await Task.FromResult(jsonRx);
            }
        }

        public JsonRxResponse RequestOTP(RequestOTPModel requestOTPModel)
        {
            JsonRxResponse jsonRx = new JsonRxResponse();
            try
            {
                requestOTPModel.OTP = Utilities.GenerateOTP(); 
                jsonRx = _accountRepo.RequestOTP(requestOTPModel);
                _logger.LogDebug("GenerateOTP | RESPONSE : " + JsonConvert.SerializeObject(jsonRx));

                if (jsonRx.ErrorCode == "0")
                {
                    bool emailSent = false;
                    bool smsSent = false;
                    if (requestOTPModel.userId.IsValidEmail())
                    {

                        if (!string.IsNullOrEmpty(jsonRx.ErrorCode) && jsonRx.ErrorCode.Equals("0"))
                        {
                            List<Mapping> bodyMappings = new List<Mapping>();

                            bodyMappings.Add(new Mapping() { SValue = "CustomerName", SText = requestOTPModel.CreatedBy });
                            //bodyMappings.Add(new Mapping() { SValue = "OTP_CODE", SText = requestOTPModel.OTP });
                            bodyMappings.Add(new Mapping() { SValue = "OTP_CODE", SText = jsonRx.Id });
                            bodyMappings.Add(new Mapping() { SValue = "TYPE", SText = requestOTPModel.requestFor });
                            try
                            {
                                SendNotificationRequest request = new SendNotificationRequest()
                                {
                                    IsBulkNotification = false,
                                    UserName = requestOTPModel.CreatedBy,
                                    ControlNo = requestOTPModel.receiverId,
                                    ProviderId = "REQUESTOTP_EMAIL",
                                    Template = NotifyTemplate.OTP_EMAIL,
                                    Recipients = new List<RecipientViewModel>()
                                        {
                                            new RecipientViewModel()
                                                {
                                                        NotificationContent =  new NotificationDTO() {
                                                            Body = JsonConvert.SerializeObject(bodyMappings),
                                                            //Title will be set by mapping json
                                                        },
                                                         Address= requestOTPModel.CreatedBy,
                                                         DeviceType = requestOTPModel.DeviceType,
                                                }                                        }
                                };


                                _logger.LogDebug("SendNotification.EMAIL | REQUEST : " + JsonConvert.SerializeObject(request));

                                var jsonRx1 = NotifierV2.SendNotification(request, NOTIFICATION_TYPE.EMAIL);

                                _logger.LogDebug("SendNotification.EMAIL | RESPONSE : " + JsonConvert.SerializeObject(jsonRx1));
                                emailSent = true;
                            }
                            catch (Exception emailException)
                            {
                                _logger.LogError("Error sending email", emailException);
                            }

                            try
                            {
                                string ProcessId = Guid.NewGuid().ToString().Replace("-", "") + ":sendSms";

                                string mobileNum = jsonRx.Extra2;
                                var mobNum = getSenderFormattedNumber(mobileNum);
                                SendSMSApiService _sendAPI = new SendSMSApiService();

                                StringBuilder s = new StringBuilder();
                                s.AppendLine($"Dear {jsonRx.Extra}");
                                s.AppendLine($"Your OTP code for Customer  Registration is {requestOTPModel.OTP}.");
                                s.AppendLine("Regards, IME London");

                                SMSRequestModel _req = new SMSRequestModel
                                {
                                    ProviderId = "onewaysms",
                                    MobileNumber = mobileNum,
                                    SMSBody = s.ToString(),
                                    ProcessId = ProcessId.Substring(ProcessId.Length - 40, 40),
                                    RequestedBy = requestOTPModel.userId,
                                    UserName = requestOTPModel.userId,
                                    method = "send",
                                    ControlNo = "", // GetControlNo()
                                };

                                _logger.LogDebug("SendNotification.SMS | REQUEST : " + JsonConvert.SerializeObject(_req));
                                APIJsonResponse _resp = _sendAPI.SMSTPApi(_req);

                                _logger.LogDebug("SendNotification.SMS | RESPONSE : " + JsonConvert.SerializeObject(_resp));

                                smsSent = true;
                            }
                            catch (Exception smsException)
                            {
                                _logger.LogError("Error sending SMS", smsException);
                            }
                            if (emailSent || smsSent)
                            {
                                jsonRx.ErrorCode = "0";
                                jsonRx.SetResponse("0", "OTP has been Sent.");
                                return jsonRx;
                            }
                        }
                    }
                    
                }
                else
                {
                    jsonRx.ErrorCode = "1";
                    return new JsonRxResponse { ErrorCode = jsonRx.ErrorCode, Msg = jsonRx.Msg };

                }

                jsonRx.ErrorCode = jsonRx.ErrorCode == "103" ? "0" : jsonRx.ErrorCode;//103 = previous OTP was not expired so same was used
                return jsonRx;
            }
            catch (Exception ex)
            {
                _logger.LogError("Something Went Wrong, Please Try Again!!", ex);
                jsonRx.SetResponse("1", "Error occurred while calling RequestOTP.");
                return jsonRx;
            }
        }

        private string getSenderFormattedNumber(string number)
        {
            string finalNo = number;
            if (!number.Contains("+44"))
            {
                string mobileFirst = number.Substring(0, 1);
                if (mobileFirst == "0")
                {
                    if (number.Length == 11)
                    {
                        finalNo = "+44" + number.Substring(1, number.Length - 1);
                        return finalNo;
                    }
                    else if (number.Length < 11)
                    {
                        finalNo = $"+44{number}";
                    }
                }
                else if (number.Substring(0, 1) != "0" && number.Length == 10)
                {
                    finalNo = $"+44{number}";
                }
            }
            else if (number.Contains("+44"))
            {
                string MobN = number.Substring(4, 1);
                if (MobN == "0" && number.Length > 14)
                {
                    finalNo = number.Remove(4, 1);
                }
            }
            if (!finalNo.Substring(0, 1).Contains("+"))
                finalNo = $"+{finalNo}";
            return finalNo;
        }
    }
}