/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://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.
 * ============LICENSE_END=========================================================
 */
package org.openecomp.sdc.be.components.validation.service;

import org.apache.commons.lang3.StringUtils;
import org.openecomp.sdc.be.components.impl.exceptions.ByResponseFormatComponentException;
import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.be.datatypes.enums.JsonPresentationFields;
import org.openecomp.sdc.be.impl.ComponentsUtils;
import org.openecomp.sdc.be.model.Service;
import org.openecomp.sdc.be.model.User;
import org.openecomp.sdc.be.resources.data.auditing.AuditingActionEnum;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.openecomp.sdc.common.util.ValidationUtils;
import org.openecomp.sdc.exception.ResponseFormat;

@org.springframework.stereotype.Component
public class ServiceFunctionValidator implements ServiceFieldValidator {

    private static final Logger log = Logger.getLogger(ServiceFunctionValidator.class.getName());
    private static final String SERVICE_FUNCTION = JsonPresentationFields.SERVICE_FUNCTION.getPresentation();
    private ComponentsUtils componentsUtils;

    public ServiceFunctionValidator(ComponentsUtils componentsUtils) {
        this.componentsUtils = componentsUtils;
    }

    @Override
    public void validateAndCorrectField(User user, Service service, AuditingActionEnum actionEnum) {
        log.debug("validate service function");
        String serviceFunction = service.getServiceFunction();
        if (serviceFunction == null) {
            log.info("service function is null, assigned to empty value.");
            service.setServiceFunction("");
            return;
        }
        validateServiceFunction(serviceFunction);
    }

    private void validateServiceFunction(String serviceFunction) {
        if (StringUtils.isEmpty(serviceFunction)) {
            return;
        } else {
            if (!ValidationUtils.validateServiceFunctionLength(serviceFunction)) {
                log.info("service function exceeds limit.");
                ResponseFormat errorResponse = componentsUtils.getResponseFormat(ActionStatus.PROPERTY_EXCEEDS_LIMIT, "" + SERVICE_FUNCTION);
                throw new ByResponseFormatComponentException(errorResponse);
            }
            if (!ValidationUtils.validateServiceMetadata(serviceFunction)) {
                log.info("service function is not valid.");
                ResponseFormat errorResponse = componentsUtils.getResponseFormat(ActionStatus.INVALID_PROPERY, "" + SERVICE_FUNCTION);
                throw new ByResponseFormatComponentException(errorResponse);
            }
        }
    }
}