package fr.plil.sio.examen.services;

import fr.plil.sio.examen.api.Animal;
import fr.plil.sio.examen.api.Comment;
import fr.plil.sio.examen.api.Owner;
import fr.plil.sio.examen.repositories.AnimalRepository;
import fr.plil.sio.examen.repositories.CommentRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class AnimalServiceImpl implements AnimalService {

    @Autowired
    private AnimalRepository animalRepository;
    
    @Autowired
    private CommentRepository commentRepository;

    @Override
    @Transactional
    public Animal create(String name, Owner owner) {
        if(name == null) {
            throw new IllegalArgumentException("name must be not null");
        }
        if(owner == null) {
            throw new IllegalArgumentException("owner must be not null");
        }
        Animal animal = new Animal();
        animal.setName(name);
        animal.setOwner(owner);
        animalRepository.save(animal);
        return animal;
    }


    @Override
    @Transactional    
    public void delete(Animal animal) {
        if(animal == null)
            throw new IllegalArgumentException("Animal must not be null");
        
        if(animal.getId() == null)
            throw new IllegalArgumentException("Animal doesn't exist");
        
        for(Comment c : animal.getComments())
            commentRepository.delete(c);
        
        animalRepository.delete(animal);
    }
    
}