/*
 * Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. licenses this file to you 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.
 */

package org.wso2.carbon.siddhi.editor.core.util.designview.designgenerator.generators;

import org.wso2.carbon.siddhi.editor.core.util.designview.beans.configs.siddhielements.StreamConfig;
import org.wso2.siddhi.query.api.annotation.Annotation;
import org.wso2.siddhi.query.api.definition.StreamDefinition;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Generator to create Stream definition config
 */
public class StreamDefinitionConfigGenerator extends CodeSegmentsPreserver {
    /**
     * Generates StreamConfig object, with given Siddhi StreamDefinition
     * @param streamDefinition  Siddhi StreamDefinition object
     * @return                  StreamConfig object
     */
    public StreamConfig generateStreamConfig(StreamDefinition streamDefinition) {
        List<String> annotationConfigs = new ArrayList<>();
        List<Annotation> annotationListObjects = new ArrayList<>();
        List<String> streamElementAnnotationNames = new ArrayList<>(Arrays.asList("SOURCE", "SINK", "STORE"));
        AnnotationConfigGenerator annotationConfigGenerator = new AnnotationConfigGenerator();
        for (Annotation annotation : streamDefinition.getAnnotations()) {
            if (!streamElementAnnotationNames.contains(annotation.getName().toUpperCase())) {
                // Since these annotations represent the stream itself
                annotationListObjects.add(annotation);
                annotationConfigs.add(annotationConfigGenerator.generateAnnotationConfig(annotation));
            }
        }
        AttributeConfigListGenerator attributeConfigListGenerator = new AttributeConfigListGenerator();
        StreamConfig streamConfig = new StreamConfig(streamDefinition.getId(),
                streamDefinition.getId(),
                attributeConfigListGenerator.generateAttributeConfigList(streamDefinition.getAttributeList()),
                annotationConfigs,annotationListObjects);
        preserveCodeSegmentsOf(annotationConfigGenerator, attributeConfigListGenerator);
        preserveAndBindCodeSegment(streamDefinition, streamConfig);

        return streamConfig;
    }
}
