package ca.uhn.fhir.jpa.provider;

/*
 * #%L
 * HAPI FHIR JPA Server
 * %%
 * Copyright (C) 2014 - 2017 University Health Network
 * %%
 * 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.
 * #L%
 */

import javax.servlet.http.HttpServletRequest;

import ca.uhn.fhir.jpa.dao.IFhirResourceDao;
import ca.uhn.fhir.model.api.IResource;
import ca.uhn.fhir.model.base.resource.BaseOperationOutcome.BaseIssue;
import ca.uhn.fhir.model.dstu.resource.OperationOutcome;
import ca.uhn.fhir.model.primitive.IdDt;
import ca.uhn.fhir.rest.annotation.Create;
import ca.uhn.fhir.rest.annotation.Delete;
import ca.uhn.fhir.rest.annotation.IdParam;
import ca.uhn.fhir.rest.annotation.ResourceParam;
import ca.uhn.fhir.rest.annotation.Update;
import ca.uhn.fhir.rest.annotation.Validate;
import ca.uhn.fhir.rest.api.MethodOutcome;
import ca.uhn.fhir.rest.method.RequestDetails;
import ca.uhn.fhir.rest.server.exceptions.ResourceNotFoundException;

public class JpaResourceProviderDstu1<T extends IResource> extends BaseJpaResourceProvider<T> {

	private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(JpaResourceProviderDstu1.class);

	public JpaResourceProviderDstu1() {
		// nothing
	}

	public JpaResourceProviderDstu1(IFhirResourceDao<T> theDao) {
		super(theDao);
	}

	@Create
	public MethodOutcome create(HttpServletRequest theRequest, @ResourceParam T theResource, RequestDetails theRequestDetails) {
		startRequest(theRequest);
		try {
			return getDao().create(theResource, theRequestDetails);
		} finally {
			endRequest(theRequest);
		}
	}

	@Delete
	public MethodOutcome delete(HttpServletRequest theRequest, @IdParam IdDt theResource, RequestDetails theRequestDetails) {
		startRequest(theRequest);
		try {
			return getDao().delete(theResource, theRequestDetails);
		} finally {
			endRequest(theRequest);
		}
	}

	@Update
	public MethodOutcome update(HttpServletRequest theRequest, @ResourceParam T theResource, @IdParam IdDt theId, RequestDetails theRequestDetails) {
		startRequest(theRequest);
		try {
			theResource.setId(theId);
			return getDao().update(theResource, theRequestDetails);
		} catch (ResourceNotFoundException e) {
			ourLog.info("Can't update resource with ID[" + theId.getValue() + "] because it doesn't exist, going to create it instead");
			theResource.setId(theId);
			return getDao().create(theResource, theRequestDetails);
		} finally {
			endRequest(theRequest);
		}
	}

	@Validate
	public MethodOutcome validate(HttpServletRequest theRequest, @ResourceParam T theResource) {
		startRequest(theRequest);
		try {
			MethodOutcome retVal = new MethodOutcome();
			retVal.setOperationOutcome(new OperationOutcome());
			BaseIssue issue = ((OperationOutcome)retVal.getOperationOutcome()).addIssue();
			issue.getSeverityElement().setValue("information");
			issue.setDetails("Resource validates successfully (note that on this server, the DSTU1 endpoint validation only validates basic ability to parse the resource)");
			return retVal;
		} finally {
			endRequest(theRequest);
		}
	}

}