using SeaHaven.Services.Interfaces;
using SendGrid;
using SendGrid.Helpers.Mail;

namespace Api.SeaHavenIndustries.Helper
{
    public class SendMessage : IEmailSender
    {
        private IConfiguration _configuration;
        private readonly ILogger<SendMessage> _logger;
        //string keysapi = "";

        public SendMessage(IConfiguration configuration, ILogger<SendMessage> logger)
        {
            _configuration = configuration;
            _logger = logger;
            //keysapi = _configuration.GetValue<string>("SendGrid:ApiKey");
        }

        protected virtual ISendGridClient CreateClient(string? apiKey) => new SendGridClient(apiKey);

        /// <summary>
        /// SendGrid reports a rejected message through the status code, not an exception.
        /// Only the status is logged: never the recipient, subject or response body.
        /// </summary>
        private bool Delivered(Response response)
        {
            if (response.IsSuccessStatusCode)
                return true;

            _logger.LogWarning("SendGrid rejected an email with status {StatusCode}.", (int)response.StatusCode);
            return false;
        }

        private bool Failed(Exception ex)
        {
            _logger.LogWarning("SendGrid email send failed with {ExceptionType}.", ex.GetType().Name);
            return false;
        }

        public async Task<bool> SendEMail(string emailTo, string subject, string body)
        {
            try
            {
                //MailMessage mail = new MailMessage();
                //mail.From = new MailAddress("infoesquall@codevoir.com"); //IMPORTANT: This must be same as your smtp authentication address.
                //mail.To.Add(emailTo);
                //mail.Subject = subject;
                //mail.Body = body;
                //mail.IsBodyHtml = true;
                //SmtpClient smtp = new SmtpClient("mail.codevoir.com");
                //NetworkCredential Credentials = new NetworkCredential("<smtp-user>", "<smtp-password>");
                //smtp.UseDefaultCredentials = false;
                //smtp.Credentials = Credentials;
                //smtp.Port = 8889;    //25 alternative port number is 8889
                //smtp.EnableSsl = false;

                //smtp.Send(mail);
                //var apiKey = Environment.GetEnvironmentVariable("<SENDGRID_API_KEY>\r\n");
                //var apiKey1 = Environment.GetEnvironmentVariable("<SENDGRID_API_KEY>");
                // var apiKey2 = Environment.GetEnvironmentVariable("SENDGRID_API_KEY");
                var apiKey = _configuration.GetValue<string>("SendGrid:ApiKey");

                //var apiKey = "<SENDGRID_API_KEY>";
                var client = CreateClient(apiKey);
                var from = new EmailAddress("tech@seahavenind.com", "Sea haven Industries");
                //var subject = "Sending with SendGrid is Fun";
                var to = new EmailAddress(emailTo, "");
                var apiKey3 = Environment.GetEnvironmentVariable("SendGrid:ApiKey");

                var plainTextContent = "";
                var htmlContent = body;
                var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, htmlContent);
                var response = await client.SendEmailAsync(msg);
                return Delivered(response);
            }
            catch (Exception ex)
            {
                return Failed(ex);
            }
        }
        public async Task<bool> SendEmailAsync(string emailTo, string subject, string htmlBody)
            => await SendEMail(emailTo, subject, htmlBody);
        public async Task<bool> SendEMailAttachment(string emailTo, string subject, byte[] pdfBytes)
        {
            try
            {

                var apiKey = _configuration.GetValue<string>("SendGrid:ApiKey");

                //var apiKey = "<SENDGRID_API_KEY>";
                var client = CreateClient(apiKey);
                var from = new EmailAddress("tech@seahavenind.com", "Sea haven Industries");
                //var subject = "Sending with SendGrid is Fun";
                var to = new EmailAddress(emailTo, "");
                var apiKey3 = Environment.GetEnvironmentVariable("SendGrid:ApiKey");

                var plainTextContent = "Please find the attached PDF";
                var htmlContent = "";
                var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, null);

                // Specify the content type for the attachment
                var attachment = new SendGrid.Helpers.Mail.Attachment
                {
                    Content = Convert.ToBase64String(pdfBytes),
                    Filename = "Workorder.pdf",
                    Type = "application/pdf",  // Use the correct MIME type for PDF
                    Disposition = "attachment",
                    ContentId = "Attachment"  // Optional: ContentId for inline attachments
                };

                msg.Attachments = new List<SendGrid.Helpers.Mail.Attachment> { attachment };

                var response = await client.SendEmailAsync(msg);
                return Delivered(response);
            }
            catch (Exception ex)
            {
                return Failed(ex);
            }
        }
        public async Task<bool> SendDispatchEmail(string emailTo, string subject, string htmlBody, string? replyTo)
        {
            try
            {
                var apiKey = _configuration.GetValue<string>("SendGrid:ApiKey");
                var client = CreateClient(apiKey);
                var from = new EmailAddress("tech@seahavenind.com", "Sea Haven Industries");
                var to = new EmailAddress(emailTo, "");

                var msg = MailHelper.CreateSingleEmail(from, to, subject, "", htmlBody);

                if (!string.IsNullOrWhiteSpace(replyTo))
                    msg.SetReplyTo(new EmailAddress(replyTo));

                var response = await client.SendEmailAsync(msg);
                return Delivered(response);
            }
            catch (Exception ex)
            {
                return Failed(ex);
            }
        }
    }
}