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package love.keeping.starter.web.components.validation;

import love.keeping.starter.common.utils.ObjectUtil;
import love.keeping.starter.common.utils.StringUtil;
import love.keeping.starter.web.enums.BaseEnum;
import love.keeping.starter.web.utils.EnumUtil;

import java.io.Serializable;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

/**
 * 枚举校验 如果参数是null 则通过校验
 *
 * @author Keeping
 */
public class EnumValidator implements ConstraintValidator {

  private Class> enumsClass;

  @Override
  public void initialize(IsEnum constraintAnnotation) {

    this.enumsClass = constraintAnnotation.enumClass();
  }

  @Override
  public boolean isValid(Serializable value, ConstraintValidatorContext context) {

    return ObjectUtil.isNull(value) || ObjectUtil.isNotNull(EnumUtil.getByCode(enumsClass, value))
        || (
        value instanceof CharSequence && StringUtil.isEmpty((CharSequence) value));
  }
}