/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017-2018 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.onap.aai.parsers.uri;

import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;

import jakarta.ws.rs.core.MultivaluedMap;

import org.onap.aai.config.SpringContextAware;
import org.onap.aai.edges.enums.EdgeType;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.introspection.Introspector;
import org.onap.aai.introspection.Loader;
import org.onap.aai.introspection.exceptions.AAIUnknownObjectException;
import org.onap.aai.setup.SchemaVersion;
import org.onap.aai.setup.SchemaVersions;
import org.onap.aai.util.AAIConfig;
import org.onap.aai.util.AAIConstants;

/**
 * Given a URI a Relationship Object is returned.
 * 
 * The relationship-data objects are created from the keys in the model.
 * The keys are processed in the order they appear in the model.
 *
 * 
 */
public class URIToRelationshipObject implements Parsable {

    private Introspector result = null;

    private SchemaVersion originalVersion = null;

    private Introspector relationship = null;

    private Loader loader = null;

    private String baseURL;

    private final URI uri;

    /**
     * Instantiates a new URI to relationship object.
     *
     * @param loader the loader
     * @param uri the uri
     * @throws IllegalArgumentException the illegal argument exception
     * @throws AAIException the AAI exception
     * @throws UnsupportedEncodingException the unsupported encoding exception
     * @throws MalformedURLException the malformed URL exception
     */
    public URIToRelationshipObject(Loader loader, URI uri) throws AAIException {

        this.loader = loader;
        originalVersion = loader.getVersion();

        try {
            relationship = loader.introspectorFromName("relationship");
        } catch (AAIUnknownObjectException e1) {
            throw new RuntimeException("Fatal error - could not load relationship object!", e1);
        }

        this.baseURL = AAIConfig.get(AAIConstants.AAI_SERVER_URL_BASE);
        this.uri = uri;

    }

    public URIToRelationshipObject(Loader loader, URI uri, String baseURL) throws AAIException {
        this(loader, uri);

        if (baseURL != null) {
            this.baseURL = baseURL;
        }
    }

    /**
     * @{inheritDoc}
     */
    @Override
    public String getCloudRegionTransform() {
        return "remove";
    }

    /**
     * @{inheritDoc}
     */
    @Override
    public void processNamespace(Introspector obj) {

    }

    /**
     * @{inheritDoc}
     */
    @Override
    public boolean useOriginalLoader() {
        return true;
    }

    /**
     * Gets the result.
     *
     * @return the result
     * @throws AAIException
     * @throws UnsupportedEncodingException
     * @throws URISyntaxException
     */
    public Introspector getResult() throws UnsupportedEncodingException, AAIException, URISyntaxException {
        URIParser parser = new URIParser(this.loader, this.uri);
        parser.parse(this);
        URI originalUri = parser.getOriginalURI();

        URI relatedLink = new URI(this.baseURL + this.originalVersion + "/" + originalUri);
        SchemaVersions schemaVersions = (SchemaVersions) SpringContextAware.getBean("schemaVersions");
        if (this.originalVersion.compareTo(schemaVersions.getRelatedLinkVersion()) >= 0) {
            // only return the path section of the URI past v10
            relatedLink = new URI(relatedLink.getRawPath());
        }

        this.relationship.setValue("related-link", relatedLink.toString());

        this.result = relationship;
        return this.result;
    }

    @Override
    public void processObject(Introspector obj, EdgeType type, MultivaluedMap<String, String> uriKeys) {
        for (String key : obj.getKeys()) {
            try {
                Introspector data = loader.introspectorFromName("relationship-data");
                data.setValue("relationship-key", obj.getDbName() + "." + key);
                data.setValue("relationship-value", obj.getValue(key));

                ((List<Object>) relationship.getValue("relationship-data")).add(data.getUnderlyingObject());
            } catch (AAIUnknownObjectException e) {
                throw new RuntimeException("Fatal error - relationship-data object not found!");
            }
        }
        relationship.setValue("related-to", obj.getDbName());
    }

    @Override
    public void processContainer(Introspector obj, EdgeType type, MultivaluedMap<String, String> uriKeys,
            boolean isFinalContainer) throws AAIException {
    }
}