using sib_api_v3_sdk.Api;
using sib_api_v3_sdk.Client;
using sib_api_v3_sdk.Model;
using System;
using System.Collections.Generic;
using System.Linq;

namespace MisIngredientesVue.Core.Services
{
    public interface IEmailService
    {
        void SendEmail(bool includeAds, string from, string[] to, string subject, string body, bool isBodyHtml = false, params MailAttachment[] attachments);
    }

    public class EmailService : IEmailService
    {
        public void SendEmail(bool includeAds, string from, string[] to, string subject, string body, bool isBodyHtml = false, params MailAttachment[] attachments)
        {
            //Console.WriteLine("----------------\n\n\n" + body);

            //return;

            if (to != null)
                to = to.Where(x => x.Contains("@")).Select(x => x.ToLower().Trim()).ToArray();

            var apiKey = "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";

            // Configure API key authorization: api-key
            Configuration.Default.AddApiKey("api-key", apiKey);
            // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
            // Configuration.Default.AddApiKeyPrefix("api-key", "Bearer");
            // Configure API key authorization: partner-key
            Configuration.Default.AddApiKey("partner-key", apiKey);
            // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
            // Configuration.Default.AddApiKeyPrefix("partner-key", "Bearer");

            if (isBodyHtml && includeAds)
            {
                body += $@"<br/><br/><p>Este correo fue generado por Mis Ingredientes. Visite el sitio web para conocer más: <a href=""https://misingredientes.mx"">https://misingredientes.mx</a></p>";
            }

            var apiInstance = new SMTPApi();
            var sendSmtpEmail = new SendSmtpEmail(
                new SendSmtpEmailSender("Mis Ingredientes", from), 
                to.Select(x => new SendSmtpEmailTo(x)).ToList(),
                null, null, isBodyHtml ? body : null, 
                isBodyHtml ? null : body, 
                subject);
           
            if (attachments != null && attachments.Length > 0)
            {
                sendSmtpEmail.Attachment = new List<SendSmtpEmailAttachment>();

                foreach (var attachment in attachments)
                {
                    sendSmtpEmail.Attachment.Add(new SendSmtpEmailAttachment()
                    {
                        Content = attachment.Data,
                        Name = attachment.Name
                    });
                }
                
            }

            try
            {
                // Send a transactional email
                CreateSmtpEmail result = apiInstance.SendTransacEmail(sendSmtpEmail);
            }
            catch (Exception e)
            {
                Console.WriteLine($"From: {from}, To: {(to != null ? string.Join(", ", to) : "")}. Error al enviar correo electrónico: {e.Message}" + e.Message);
            }

        }

        //public void SendEmail(string from, string[] to, string subject, string body, bool isBodyHtml = false, params MailAttachment[] attachments)
        //{
        //    if (to != null)
        //        to = to.Where(x => x.Contains("@")).ToArray();

        //    var apiKey = "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";
        //    var client = new SendGridClient(apiKey);
        //    var fromEmailAddress = new EmailAddress(from);
        //    var toEmailAddress = to.Select(email => new EmailAddress(email)).ToList();

        //    var messageToSend = toEmailAddress.Count == 1 ?
        //        MailHelper.CreateSingleEmail(fromEmailAddress, toEmailAddress[0], subject, isBodyHtml ? string.Empty : body, isBodyHtml ? body : string.Empty) :
        //        MailHelper.CreateSingleEmailToMultipleRecipients(fromEmailAddress, toEmailAddress, subject, isBodyHtml ? string.Empty : body, isBodyHtml ? body : string.Empty);

        //    if (attachments != null)
        //    {
        //        var attachmentsToAdd = new List<SendGrid.Helpers.Mail.Attachment>();
        //        foreach (var a in attachments)
        //        {
        //            if (a.Data != null)
        //            {
        //                var attachment = new SendGrid.Helpers.Mail.Attachment();
        //                attachment.Content = Convert.ToBase64String(a.Data);
        //                attachment.Filename = a.Name;
        //                attachmentsToAdd.Add(attachment);
        //            }
        //        }

        //        if (attachmentsToAdd.Count > 0)
        //            messageToSend.AddAttachments(attachmentsToAdd);
        //    }



        //    var response = client.SendEmailAsync(messageToSend);
        //    response.Wait();
        //    var stringResponse = response.Result.Body.ReadAsStringAsync();
        //    stringResponse.Wait();

        //}
    }

    public class MailAttachment
    {
        public string Name { get; set; }
        public byte[] Data { get; set; }
    }
}