source: phonelux-backend/src/main/java/finki/it/phoneluxbackend/services/EmailService.java

package finki.it.phoneluxbackend.services;

import finki.it.phoneluxbackend.security.email.EmailSender;
import lombok.AllArgsConstructor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

@Service
@AllArgsConstructor
public class EmailService implements EmailSender {

    private final JavaMailSender mailSender;
    private final static Logger LOGGER = LoggerFactory.getLogger(EmailService.class);



    @Override
    @Async
    public void send(String to, String email) {
        try{
            MimeMessage mimeMessage = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage,"utf-8");
            helper.setText(email,true);
            helper.setTo(to);
            helper.setSubject("Confirm your email - Phonelux");
            helper.setFrom("phonelux_official@gmail.com");
            mailSender.send(mimeMessage);
        } catch (MessagingException e){
            LOGGER.error("Failed to send email ", e);
            throw new IllegalStateException("Failed to send email");
        }
    }
}