package ciai.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import ciai.exception.ProfessorNotEditedException;
import ciai.exception.ProfessorNotFoundException;
import ciai.model.Account;
import ciai.model.Professor;
import ciai.repository.ProfessorRepository;

@Service
public class ProfessorService {

	@Autowired
	ProfessorRepository profRep;

	public Professor getProfessor(Long id) throws ProfessorNotFoundException {
		Professor p = profRep.findOne(id);
		if (p == null)
			throw new ProfessorNotFoundException();

		return p;
	}

	public void editProfessor(Long id, String name, String photo, String email)
			throws ProfessorNotFoundException, ProfessorNotEditedException {

		Professor prof = getProfessor(id);

		if (prof != null) {
			if (name != null && name.length() > 0)
				prof.setName(name);
			if (photo != null && photo.length() > 0)
				prof.setPhoto(photo);
			if (email != null && email.length() > 0)
				prof.setEmail(email);
		}

		if (profRep.save(prof) == null)
			throw new ProfessorNotEditedException();

	}

	public Professor getProfessorByAccount(Account ac) {
		return profRep.getProfessorByAccount(ac.getId());
	}

	public Iterable<Professor> getAll() {
		return profRep.findAll();
	}
}