using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.ComponentModel.Design;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing.Text;
using System.Drawing;
using NeomtechERP.Auth.Core.Global;
using NeomtechERP.Auth.Core;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;
using MTWorkHR.Core.Global;
using MTWorkHR.Core.Email;
using MTWorkHR.Core.UnitOfWork;
using MTWorkHR.Application.Services.Interfaces;
using MTWorkHR.Core.Entities;

namespace MTWorkHR.Application.Services
{
	public class OTPService : IOTPService
	{
		private readonly AppSettingsConfiguration appSettings;
		private readonly IMailSender mailSender;
		private readonly IUnitOfWork unitOfWork;
		private readonly IWebHostEnvironment env;


		public OTPService(AppSettingsConfiguration appSettings, IUnitOfWork unitOfWork, IMailSender mailSender,
			 IWebHostEnvironment env)
		{
			this.appSettings = appSettings;
			this.mailSender = mailSender;
			this.unitOfWork = unitOfWork;
			this.env = env;
		}
		public async Task<string> RandomOneTimePassword(string userId)
		{
			string oneTimePassword = default;

			for (var index = 0; index < appSettings.OTPSettings.Length; index++)
			{
				oneTimePassword += $"{new Random().Next(0, 10)}";
			}

			var loginOTP = new LoginOTP()
			{
				OTP = oneTimePassword,
				UserId = userId,
				CreateDate = DateTime.Now,
				ExpireDate = DateTime.Now.AddMinutes(appSettings.OTPSettings.ExpirePeriodInMinutes)
			};
			await unitOfWork.LoginOTP.AddAsync(loginOTP);
			await unitOfWork.CompleteAsync();
			return oneTimePassword;
		}
		public async Task<bool> VerifyOTP(string userId, string oneTimePassword)
		{
			if (appSettings.OTPSettings.AllowZeros)
			{
				var dummyOTP = "";
                for (var index = 0; index < appSettings.OTPSettings.Length; index++)
                {
                    dummyOTP += "1";
                }
                return oneTimePassword == dummyOTP;
            }
				
			else
				return await unitOfWork.LoginOTP.VerifyOTP(userId, oneTimePassword);
		}

		//public async Task SentOTPBySMS(string phoneNumber, string oneTimePassword, SMSMethod method)
		//{
		//	if (appSettings.OTPSettings.SendSMS)
		//	{
		//		string message = string.Format(appSettings.OTPSettings.MessageBody, oneTimePassword);
		//		var smsModel = new SMSDTO
		//		{
		//			PhoneNumber = phoneNumber,
		//			MessageBody = message,
		//			Method = method.ToString(),
		//			Module = "Auth",
		//		};
		//		var smsOutput = await smsProvider.SendSmsBySMSProviderSettings(smsModel);
		//	}
  //      }
		public async Task SentOTPByMail(string userId, string email, string oneTimePassword)
		{
			if (appSettings.OTPSettings.SendEmail)
			{
				string subject = appSettings.OTPSettings.MessageSubject;
				string message = string.Format(appSettings.OTPSettings.MessageBody , oneTimePassword);
                await mailSender.SendEmail(new EmailMessage
                {
                    Subject = subject,
                    To = email,
                    Body = message,
                    url = "",
                    userId = userId
                });
			}
		}



	}

}