ofbapi/OFBButte.Application/Users/SendResetPasswordEmail.cs

using Microsoft.EntityFrameworkCore;
using OFBButte.Application.Codes;
using OFBButte.Application.Database;
using OFBButte.Application.Email;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace OFBButte.Application.Users
{
    public class SendResetPasswordEmail
    {
        private readonly IOFBContext context;
        private readonly IEmailSender emailSender;
        private readonly ICodeGenerator codes;

        public SendResetPasswordEmail(IOFBContext context, IEmailSender emailSender, ICodeGenerator codes)
        {
            this.context = context;
            this.emailSender = emailSender;
            this.codes = codes;
        }

        public async Task Handle(string email, string lastName)
        {
            // Get the user
            var user = context.Users.Include(u => u.PassswordResetCode).FirstOrDefault(u => u.Email == email && u.Profile.LastName == lastName);
            if (user == null)
                return;

            if (user.PassswordResetCode != null)
            {
                context.PasswordResetCodes.Remove(user.PassswordResetCode);
            }

            user.PassswordResetCode = new Entities.PasswordResetCode()
            {
                CreatedDate  = DateTime.Now,
                Code = codes.Generate()
            };

            context.SaveChanges();

            var message = new PasswordResetEmailMessage()
            {
                To = user.Email,
                Url = $"http://ofbbutte.com/user/resetpassword?c={user.PassswordResetCode.Id}&code={user.PassswordResetCode.Code}"
            };

            await emailSender.Send(message);
        }
    }
}