/**
 * ****************************************************************************
 * Copyright (C) 2014 BonitaSoft S.A.
 * BonitaSoft is a trademark of BonitaSoft SA.
 * This software file is BONITASOFT CONFIDENTIAL. Not For Distribution.
 * For commercial licensing information, contact:
 * BonitaSoft, 32 rue Gustave Eiffel – 38000 Grenoble
 * or BonitaSoft US, 51 Federal Street, Suite 305, San Francisco, CA 94107
 * *****************************************************************************
 */
package org.bonitasoft.web.rest.server.api.bdm;

import org.bonitasoft.engine.api.BusinessDataAPI;
import org.bonitasoft.engine.bpm.data.DataNotFoundException;
import org.bonitasoft.engine.business.data.BusinessDataReference;
import org.bonitasoft.engine.business.data.MultipleBusinessDataReference;
import org.bonitasoft.engine.business.data.SimpleBusinessDataReference;
import org.bonitasoft.web.rest.server.BonitaRestletApplication;
import org.bonitasoft.web.rest.server.api.resource.CommonResource;
import org.restlet.data.Status;
import org.restlet.resource.Get;

/**
 * @author Matthieu Chaffotte
 */
public class BusinessDataReferenceResource extends CommonResource {

    private final BusinessDataAPI bdmAPI;

    public BusinessDataReferenceResource(final BusinessDataAPI bdmAPI) {
        this.bdmAPI = bdmAPI;
    }

    @Get("json")
    public BusinessDataReferenceClient getProcessBusinessDataReference() throws DataNotFoundException {
        final String businessDataName = getPathParam("dataName");
        final Long processInstanceId = getPathParamAsLong("caseId");
        return toClient(bdmAPI.getProcessBusinessDataReference(businessDataName, processInstanceId));
    }

    public static BusinessDataReferenceClient toClient(BusinessDataReference object) {
        if (object instanceof SimpleBusinessDataReference) {
            final SimpleBusinessDataReference businessDataReference = (SimpleBusinessDataReference) object;
            return new SimpleBusinessDataReferenceClient(object.getName(), object.getType(), getUrl(object.getType(), getStorageIdString(businessDataReference)), businessDataReference.getStorageId());
        } else {
            final MultipleBusinessDataReference businessDataReference = (MultipleBusinessDataReference) object;
            return new MultipleBusinessDataReferenceClient(object.getName(), object.getType(), getUrl(businessDataReference.getType(), getValue(businessDataReference)), businessDataReference.getStorageIds());
        }
    }

    private static String getStorageIdString(SimpleBusinessDataReference businessDataReference) {
        Long storageId = businessDataReference.getStorageId();
        if (storageId != null) {
            return storageId.toString();
        }
        return "";
    }

    static String getValue(MultipleBusinessDataReference multipleBusinessDataReference) {
        return "findByIds?ids="+multipleBusinessDataReference.getStorageIds().toString().replaceAll("[\\[\\] ]","");
    }

    private static String getUrl(String type, String value) {
        return "API" + BonitaRestletApplication.BDM_BUSINESS_DATA_URL + "/" + type + "/" + value;
    }

    @Override
    protected void doCatch(final Throwable throwable) {
        super.doCatch(throwable);
        if (throwable.getCause() instanceof DataNotFoundException) {
            getResponse().setStatus(Status.CLIENT_ERROR_NOT_FOUND);
        }
    }


}