package pl.artifact.sc.services.validator;

import java.util.List;

import com.google.common.collect.Lists;

import pl.artifact.base.mybatis.model.domain.BaseBean;
import pl.artifact.base.mybatis.model.exception.validation.ValidationError;
import pl.artifact.base.mybatis.model.exception.validation.ValidationErrorType;
import pl.artifact.base.mybatis.model.exception.validation.ValidationException;
import pl.artifact.base.mybatis.validation.BaseBeanValidator;
import pl.artifact.sc.model.exception.validation.ValidationErrorImpl;

public abstract class BeanValidator<BEAN_TYPE extends BaseBean> extends BaseBeanValidator<BEAN_TYPE>  {

    @Override
    public final void validateForAdd(BEAN_TYPE bean) throws ValidationException {
        List<ValidationError> list = Lists.newArrayList();
        doValidateForAdd(bean, list);
        checkErrorList(list);
    }

    @Override
    public final void validateForUpdate(BEAN_TYPE bean, BEAN_TYPE oldBean) throws ValidationException {
        List<ValidationError> list = Lists.newArrayList();
        doValidateForUpdate(bean, oldBean, list);
        checkErrorList(list);
    }

    public abstract void doValidateForAdd(BEAN_TYPE bean, List<ValidationError> list);

    public abstract void doValidateForUpdate(BEAN_TYPE bean, BEAN_TYPE oldBean, List<ValidationError> list);


    private final void checkErrorList(List<ValidationError> errors) throws ValidationException {
        if (!errors.isEmpty()) {
            ValidationException exc = new ValidationException();
            exc.withErrors(errors.toArray(new ValidationError[0]));
            throw exc;
        }
    }

    protected final ValidationError createError(ValidationErrorType type, String fieldName, String message) {
        ValidationErrorImpl valError = new ValidationErrorImpl();
        valError.setType(type);
        valError.setFieldName(fieldName);
        valError.setMessage(message);
        return valError;
    }

}