using CPRNIMS.Domain.Contracts.Account;
using CPRNIMS.Infrastructure.Database;
using CPRNIMS.Infrastructure.Entities.Common;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CPRNIMS.Domain.Services.Account
{
    public class ForgotPassword : IForgotPassword
    {
        private readonly NonInventoryDbContext _purchasingDbContext;
        public ForgotPassword(NonInventoryDbContext purchasingDbContext)
        {
            _purchasingDbContext = purchasingDbContext;
        }
        public async Task<bool> ValidateTokenURLForgotPassword(Infrastructure.Entities.Account.ForgotPassword forgotPassword)
        {
            var isValid = await _purchasingDbContext.ForgotPasswords
                .FirstOrDefaultAsync(fp => fp.ServerURIToken == forgotPassword.ServerURIToken);
            if (isValid != null)
            {
                return true;
            }
            return false;
        }
        async Task IForgotPassword.SaveToken(Infrastructure.Entities.Account.ForgotPassword forgotPassword)
        {
            try
            {
                var isEmailExist = await _purchasingDbContext.ForgotPasswords
                        .Where(tv => tv.IsValid == true)
                        .FirstOrDefaultAsync(fp => fp.Email == forgotPassword.Email)
                      ;
                if (isEmailExist != null)
                {
                    forgotPassword.UpdatedDate = DateTime.Now;
                    forgotPassword.UpdatedBy = forgotPassword.Email;
                    forgotPassword.ServerURIToken = forgotPassword.ServerURIToken;
                    await _purchasingDbContext.SaveChangesAsync();
                }
                else
                {
                    forgotPassword.IsValid = true;
                    await _purchasingDbContext.ForgotPasswords.AddAsync(forgotPassword);
                    await _purchasingDbContext.SaveChangesAsync();
                }
            }
            catch (Exception ex)
            {
                ex.ToString();
                throw;
            }
        }
        async Task IForgotPassword.ForgotPassword(Infrastructure.Entities.Account.ForgotPassword forgotPassword)
        {
            await _purchasingDbContext.ForgotPasswords.AddAsync(forgotPassword);
            await _purchasingDbContext.SaveChangesAsync();
        }

        public Task OptimizeMessageBody(Infrastructure.Entities.Account.ForgotPassword forgotPassword)
        {
            throw new NotImplementedException();
        }

        public async Task<bool> ValidateOTP(Otps forgotPassword)
        {
            DateTime currentDateTime = DateTime.Now;
            var expiredOTP = await _purchasingDbContext.Otps
                             .FirstOrDefaultAsync(otp => otp.Email == forgotPassword.Email
                             && otp.IsValid == true
                            && otp.CreatedDate < currentDateTime.AddMinutes(-30));


            if (expiredOTP != null)
            {
                await SetOTPInvalidAsync(expiredOTP.OTP);
                return expiredOTP != null;
            }
            var isValid = await _purchasingDbContext.Otps
                             .FirstOrDefaultAsync(otp =>
                             otp.OTP == forgotPassword.OTP && otp.Email == forgotPassword.Email
                             && otp.CreatedDate > DateTime.Now.AddMinutes(-30)); // Use '-' to subtract 30 minutes

            return isValid != null;
        }
        public async Task SetOTPInvalidAsync(string otp)
        {
            try
            {
                var isOTPExist = await _purchasingDbContext.Otps
                        .Where(tv => tv.IsValid == true)
                        .FirstOrDefaultAsync(fp => fp.OTP == otp);

                if (isOTPExist != null)
                {
                    isOTPExist.IsValid = false;
                    isOTPExist.UpdatedDate = DateTime.Now;
                    isOTPExist.UpdatedBy = "SysAdmin";
                    await _purchasingDbContext.SaveChangesAsync();
                }
                else
                {

                }
            }
            catch (Exception ex)
            {
                ex.ToString();
                throw;
            }
        }

        public async Task SaveUpdateOTPAsync(Otps forgotPassword, bool isPassChanged)
        {
            try
            {

                var isEmailExist = await _purchasingDbContext.Otps
                        .Where(tv => tv.IsValid == true)
                        .FirstOrDefaultAsync(fp => fp.Email == forgotPassword.Email);

                if (isPassChanged == true)
                {
                    if (isEmailExist != null)
                    {
                        isEmailExist.IsValid = false;
                        isEmailExist.UpdatedDate = DateTime.Now;
                        isEmailExist.UpdatedBy = forgotPassword.Email;
                        await _purchasingDbContext.SaveChangesAsync();
                    }
                }
                else
                {
                    if (isEmailExist != null)
                    {
                        isEmailExist.UpdatedDate = DateTime.Now;
                        isEmailExist.UpdatedBy = forgotPassword.Email;
                        isEmailExist.OTP = forgotPassword.OTP;
                        await _purchasingDbContext.SaveChangesAsync();
                    }
                    else
                    {
                        forgotPassword.IsValid = true;
                        await _purchasingDbContext.Otps.AddAsync(forgotPassword);
                        await _purchasingDbContext.SaveChangesAsync();
                    }
                }
            }
            catch (Exception ex)
            {
                ex.ToString();
                throw;
            }
        }
    }
}