package fr.plil.sio.examen.services;

import fr.plil.sio.examen.api.Animal;
import fr.plil.sio.examen.api.Owner;
import fr.plil.sio.examen.repositories.AnimalRepository;
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;

    @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);
        owner.getAnimals().add(animal);
        return animal;
    }


    @Override
    @Transactional    
    public void delete(Animal animal) {
       if(animal==null){
           throw new IllegalArgumentException("animal must be not null");
       }
       //Si on ne trouve pas d'animaux avec le meme nom alors il n'est pas en base de données
       if(animalRepository.findByName(animal.getName()).size()==0){
           //On lance donc une exception
           throw new IllegalArgumentException("animal not in database");
       }
       
        //Enfin, on le supprime
        animalRepository.delete(animal.getId());
        animal.getOwner().getAnimals().remove(animal);
    }
    
}