package eu.eudat.services.utilities;

import eu.eudat.dao.entities.DMPDao;
import eu.eudat.dao.entities.InvitationDao;
import eu.eudat.entities.DMP;
import eu.eudat.entities.Invitation;
import eu.eudat.models.mail.SimpleMail;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.UUID;


@Service("invitationService")
public class InvitationServiceImpl implements InvitationService {
    @Override
    public void assignToDmp(DMPDao dmpDao, List<eu.eudat.entities.UserInfo> users, DMP dmp) {
        for (eu.eudat.entities.UserInfo user : users) {
            dmp.getUsers().add(user);
        }
        dmpDao.createOrUpdate(dmp);
    }

    @Override
    public void assignToDmp(DMPDao dmpDao, eu.eudat.entities.UserInfo user, DMP dmp) {
        dmp.getUsers().add(user);
        dmpDao.createOrUpdate(dmp);
    }

    @Override
    public void createInvitations(InvitationDao invitationDao, MailService mailService, List<eu.eudat.entities.UserInfo> users, DMP dmp, eu.eudat.entities.UserInfo creator) {
        for (eu.eudat.entities.UserInfo userInfo : users) {
            Invitation invitation = new Invitation();
            invitation.setDmp(dmp);
            invitation.setInvitationEmail(userInfo.getEmail());
            invitation.setUser(creator);
            invitation.setToken(UUID.randomUUID());
            invitation.setAcceptedInvitation(false);
            invitationDao.createOrUpdate(invitation);
            sendInvitation(dmp, invitation, mailService);
        }
    }

    @Override
    public void sendInvitation(DMP dmp, Invitation invitation, MailService mailService) {
        SimpleMail mail = new SimpleMail();
        mail.setSubject(createSubject(dmp, mailService.getMailTemplateSubject()));
        mail.setContent(createContent(invitation.getId(), dmp, mailService.getMailTemplateContent()));
        mail.setTo(invitation.getInvitationEmail());
        mailService.sendSimpleMail(mail);
    }

    private String createSubject(DMP dmp, String templateSubject) {
        String subject = templateSubject.replace("{dmpname}", dmp.getLabel());
        return subject;
    }

    private String createContent(UUID invitationID, DMP dmp, String templateContent) {
        String content = templateContent.replace("{dmpname}", dmp.getLabel());
        content = content.replace("{invitationID}", invitationID.toString());
        return content;
    }
}