Email service DI with Ethereal free fake smtp and Dummy service for non -prod

EmailService.cs

using System.Net.Mail;

namespace TodoApi.Services
{
    public interface IEmailService
    {
        public Task SendEmail(string email, string body);
    }

    // For non - prod
    public class DummyEmailService : IEmailService
    {
        private readonly ILogger<EtherealEmailService> _logger;

        private object _dummyEmail;

        public DummyEmailService(object dummyEmail)
        {
            _dummyEmail = dummyEmail;
        }

        public async Task SendEmail(string email, string body)
        {
            // await
            //_dummyEmail.To(email)
            // .Body("The body").SendAsync();

            _logger.LogInformation("Email has been sent to {0}", email);
        }
    }

    public class EtherealEmailService : IEmailService
    {
        private readonly ILogger<EtherealEmailService> _logger;

        // private FluentEmail.Core.IFluentEmail _fluentEmail;
        private SmtpClient _smtpClient;

        // public FluentEmailService(FluentEmail.Core.IFluentEmail fluentEmail)
        public EtherealEmailService(SmtpClient smtpClient)
        {
            // _fluentEmail = fluentEmail;
            _smtpClient = smtpClient;
        }

        public async Task SendEmail(string email, string body)
        {
            /* Enable if you are planning to send attachments
                        var attachment = Attachment.CreateAttachmentFromString(JsonSerializer.Serialize(new
                        {
                            Message = "Hello World!"
                        }), "helloworld.json", Encoding.UTF8, MediaTypeNames.Application.Json);*/

            var message = new MailMessage("[email protected]", "[email protected]")
            {
                Subject = "Subject here ....",
                Body = "<h3>Email Body</h3><p>Contents with html!</p>",
                IsBodyHtml = true,
            };

            var obj = new object();
            _smtpClient.SendAsync(message, () =>
            {
                // Unfortunately _logger instance is not in scope LoL
                Console.WriteLine($"Email has been sent to {email}");
            });
        }
    }
}


// In Program.cs
        if (builder.Environment.IsDevelopment())
            builder.Services.AddTransient<IEmailService, DummyEmailService>();
        // else if (builder.Environment.IsProduction())
        else if (builder.Environment.IsProduction())
        {
            /*
            // use fluent for prod
            builder.Services
                    .AddFluentEmail("[email protected]")
                    // .AddRazorRenderer()
                    .AddSmtpSender("localhost", 25);*/

            SmtpClient smtp = new SmtpClient
            {
                //smtp Server address
                Host = "smtp.ethereal.email",
                // UseDefaultCredentials = false,
                // DeliveryMethod = SmtpDeliveryMethod.Network,
                // Enter here that you are sending smtp User name and password for the server
                Port = 587,
                Credentials = new System.Net.NetworkCredential("[email protected]", "passHere"),
                EnableSsl = true
            };

            builder.Services.AddSingleton(smtp);

            builder.Services.AddScoped<IEmailService, EtherealEmailService>();
        }


// In your controller Controller/SomeController.cs
        private readonly IEmailService _emailService;
        private readonly ILogger<SomeController> _logger;

        public SomeController(AppDbContext context, ILogger<SomeController> logger, IEmailService emailService)
         {
            _context = context;
            _logger = logger;
            _emailService = emailService;
        }

}