PicsImpl

@Service
public class PictureServiceImpl implements PictureService {


    private final PictureRepository pictureRepository;
    private final ModelMapper modelMapper;
    private final Gson gson;
    private final ValidationUtil validationUtil;
    private final CarService carService;

    public PictureServiceImpl(PictureRepository pictureRepository, ModelMapper modelMapper, Gson gson, ValidationUtil validationUtil, CarService carService) {
        this.pictureRepository = pictureRepository;
        this.modelMapper = modelMapper;
        this.gson = gson;
        this.validationUtil = validationUtil;
        this.carService = carService;
    }


    @Override
    public boolean areImported() {
        return this.pictureRepository.count()>0;
    }

    @Override
    public String readPicturesFromFile() throws IOException {
        return Files.readString(Path.of(PICTURES_FILE_PATH));
    }

    @Override
    public String importPictures() throws IOException {
        StringBuilder sb = new StringBuilder();


        PictureSeedDto[] pictureSeedDtos =  this.gson
                .fromJson(new FileReader(PICTURES_FILE_PATH), PictureSeedDto[].class);

        Arrays.stream(pictureSeedDtos)
                .forEach(pictureSeedDto -> {
                    if (this.validationUtil.isValid(pictureSeedDto)){
                        if (this.pictureRepository.findByName(pictureSeedDto.getName())==null){
                            Picture picture = this.modelMapper
                                    .map(pictureSeedDto,Picture.class);

                            Car car =this.carService.findById(pictureSeedDto.getCar());

                            picture.setCar(car);

                            this.pictureRepository.saveAndFlush(picture);

                            sb.append(String.format("Successfully imported picture -  %s\n",
                                    picture.getName()));

                        }else {
                            sb.append("Already in DB");
                        }
                    }else {
                        sb.append("Invalid picture");
                    }
                    sb.append(System.lineSeparator());
                });


        return sb.toString();
    }



    @Override
    public Set<Picture> getAllPicturesByCarId(int id) {

       return this.pictureRepository.getAllByCarId(id);
    }
}