/*
 * Copyright 2020-2021 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this artifact or file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.naturalprogrammer.spring.lemonreactive.validation;

import com.naturalprogrammer.spring.lemon.commons.util.UserUtils;

import javax.validation.Constraint;
import javax.validation.constraints.Email;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Size;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * Annotation for unique-email constraint,
 * ensuring that the given email id is not already
 * used by a user.  
 * 
 * @author Sanjay Patel
 */
@NotBlank(message = "{com.naturalprogrammer.spring.blank.email}")
@Size(min=UserUtils.EMAIL_MIN, max=UserUtils.EMAIL_MAX,
	message = "{com.naturalprogrammer.spring.invalid.email.size}")
@Email(message = "{com.naturalprogrammer.spring.invalid.email}")
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy=UniqueEmailValidator.class)
public @interface UniqueEmail {
 
    String message() default "{com.naturalprogrammer.spring.duplicate.email}";

    Class[] groups() default {};
    
    Class[] payload() default {};
}
