package com.vincent.rsf.common.domain;

import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;

import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.Validator;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * ${DESCRIPTION}
 *
 * @author Super-Admin
 * @CreateUser Ryan
 * @CreateTime 2018/6/14 16:12
 * @ModifyUser YunTao.Zhou
 * @ModifiedTime 2018/6/14 16:12
 * @Version 1.0
 */
public class BeanValidators {

    /**
     *
     * @param validator
     * @param list
     * @param groups
     * @throws ConstraintViolationException
     */
    public static void validateListWithException(Validator validator, List<?> list, Class<?>... groups)
            throws ConstraintViolationException {
        if(list.isEmpty()){
            return;
        }
        Set constraintViolations = Sets.newHashSet();
        for (Object o : list) {
            constraintViolations.addAll( validator.validate(o, groups));
            if (!constraintViolations.isEmpty()) {
                throw new ConstraintViolationException(constraintViolations);
            }
        }
    }

    public static void validateArrayWithException(Validator validator, Object[] array, Class<?>... groups){
        BeanValidators.validateListWithException(validator, Lists.newArrayList(array),groups);
    }


    /**
     * 调用JSR303的validate方法, 验证失败时抛出ConstraintViolationException.
     */
    @SuppressWarnings({ "unchecked", "rawtypes" })
    public static void validateWithException(Validator validator, Object object, Class<?>... groups)
            throws ConstraintViolationException {
        Set constraintViolations = validator.validate(object, groups);
        if (!constraintViolations.isEmpty()) {
            throw new ConstraintViolationException(constraintViolations);
        }
    }

    /**
     * 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>中为List<message>.
     */
    public static List<String> extractMessage(ConstraintViolationException e) {
        return extractMessage(e.getConstraintViolations());
    }

    /**
     * 辅助方法, 转换Set<ConstraintViolation>为List<message>
     */
    @SuppressWarnings("rawtypes")
    public static List<String> extractMessage(Set<? extends ConstraintViolation> constraintViolations) {
        List<String> errorMessages = Lists.newArrayList();
        for (ConstraintViolation violation : constraintViolations) {
            errorMessages.add(violation.getMessage());
        }
        return errorMessages;
    }

    /**
     * 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>为Map<property, message>.
     */
    public static Map<String, String> extractPropertyAndMessage(ConstraintViolationException e) {
        return extractPropertyAndMessage(e.getConstraintViolations());
    }

    /**
     * 辅助方法, 转换Set<ConstraintViolation>为Map<property, message>.
     */
    @SuppressWarnings("rawtypes")
    public static Map<String, String> extractPropertyAndMessage(Set<? extends ConstraintViolation> constraintViolations) {
        Map<String, String> errorMessages = Maps.newHashMap();
        for (ConstraintViolation violation : constraintViolations) {
            errorMessages.put(violation.getPropertyPath().toString(), violation.getMessage());
        }
        return errorMessages;
    }

    /**
     * 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>为List<propertyPath message>.
     */
    public static List<String> extractPropertyAndMessageAsList(ConstraintViolationException e) {
        return extractPropertyAndMessageAsList(e.getConstraintViolations(), " ");
    }

    /**
     * 辅助方法, 转换Set<ConstraintViolations>为List<propertyPath message>.
     */
    @SuppressWarnings("rawtypes")
    public static List<String> extractPropertyAndMessageAsList(Set<? extends ConstraintViolation> constraintViolations) {
        return extractPropertyAndMessageAsList(constraintViolations, " ");
    }

    /**
     * 辅助方法, 转换ConstraintViolationException中的Set<ConstraintViolations>为List<propertyPath +separator+ message>.
     */
    public static List<String> extractPropertyAndMessageAsList(ConstraintViolationException e, String separator) {
        return extractPropertyAndMessageAsList(e.getConstraintViolations(), separator);
    }

    /**
     * 辅助方法, 转换Set<ConstraintViolation>为List<propertyPath +separator+ message>.
     */
    @SuppressWarnings("rawtypes")
    public static List<String> extractPropertyAndMessageAsList(Set<? extends ConstraintViolation> constraintViolations,
                                                               String separator) {
        List<String> errorMessages = Lists.newArrayList();
        for (ConstraintViolation violation : constraintViolations) {
            errorMessages.add(violation.getPropertyPath() + separator + violation.getMessage());
        }
        return errorMessages;
    }

}