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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 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.ci.tests.businesslogic;

import com.clearspring.analytics.util.Pair;
import com.google.gson.Gson;
import org.openecomp.sdc.be.datatypes.elements.HeatParameterDataDefinition;
import org.openecomp.sdc.be.model.ArtifactDefinition;
import org.openecomp.sdc.ci.tests.datatypes.HeatAndHeatEnvNamesPair;
import org.openecomp.sdc.ci.tests.datatypes.HeatMetaFirstLevelDefinition;
import org.openecomp.sdc.ci.tests.datatypes.HeatWithParametersDefinition;
import org.openecomp.sdc.ci.tests.datatypes.enums.ArtifactTypeEnum;
import org.openecomp.sdc.ci.tests.execute.devCI.ArtifactFromCsar;
import org.openecomp.sdc.ci.tests.pages.HomePage;
import org.openecomp.sdc.ci.tests.utilities.FileHandling;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import static org.junit.Assert.assertTrue;

public class ArtifactBusinessLogic {

    private static final String[] OK_FILE_EXTENSIONS = new String[]{"yaml", "yml", "env"};
    private static final String PARAMETERS = "parameters";
    private static final String DEPLOYMENT = "Deployment";

    public static synchronized Map<String, File> createEnvFilesListFromCsar(String vspName, String filePath) throws Exception {
        Map<String, File> generatedEnvFiles;
        File csarFile = HomePage.downloadVspCsarToDefaultDirectory(vspName);
        FileHandling.unzip(csarFile.toString(), filePath);
        List<File> yamlList = getHeatFilesCreatedFromCsar(csarFile, filePath);
        Map<String, HeatAndHeatEnvNamesPair> filesPairMap = getFilesPairMap(yamlList);
        generatedEnvFiles = generateDefaultEnvFiles(filesPairMap, filePath);
        return generatedEnvFiles;
    }

    public static synchronized List<File> getHeatFilesCreatedFromCsar(File pathToDirectory, String filePath) throws Exception {
        List<File> fileList = new ArrayList<>();
        String artifactsFilePath = filePath + "Artifacts" + File.separator;
        List<File> fileListFromArtifactsDirectory = FileHandling.getHeatAndHeatEnvArtifactsFromZip(new File(artifactsFilePath), OK_FILE_EXTENSIONS);
        Map<String, Object> combinedMap = ArtifactFromCsar.combineHeatArtifacstWithFolderArtifacsToMap(pathToDirectory.toString());
        LinkedList<HeatMetaFirstLevelDefinition> deploymentArtifacts = (LinkedList<HeatMetaFirstLevelDefinition>) combinedMap.get(DEPLOYMENT);
        for (HeatMetaFirstLevelDefinition deploymentArtifact : deploymentArtifacts) {
            String type = deploymentArtifact.getType();
            if (type.equals(ArtifactTypeEnum.HEAT.getType())
                    || type.equals(ArtifactTypeEnum.HEAT_ENV.getType())
                    || type.equals(ArtifactTypeEnum.HEAT_VOL.getType())
                    || type.equals(ArtifactTypeEnum.HEAT_NET.getType())) {
                File file = new File(artifactsFilePath + deploymentArtifact.getFileName());
                if (fileListFromArtifactsDirectory.contains(file)) {
                    fileList.add(file);
                } else {
                    assertTrue("File " + file + " does not exist", false);
                }
            }
        }
        return fileList;
    }

    private static synchronized Map<String, HeatAndHeatEnvNamesPair> getFilesPairMap(List<File> generatedEnvFiles) {

        Map<String, HeatAndHeatEnvNamesPair> heatAndHeatEnvPairs = new HashMap<>();
        for (File file : generatedEnvFiles) {
            String[] fileName = file.getName().split("\\.");
            String currentKey = fileName[0];
            String currentExtension = fileName[1];
            HeatAndHeatEnvNamesPair pair;
            if (!heatAndHeatEnvPairs.containsKey(currentKey)) {
                pair = new HeatAndHeatEnvNamesPair();
                heatAndHeatEnvPairs.put(currentKey, pair);
            } else {
                pair = heatAndHeatEnvPairs.get(currentKey);
            }
            setFileToPair(file, currentExtension, pair);
        }
        return heatAndHeatEnvPairs;
    }

    /**
     * The method fill list of HeatWithParametersDefinition parameters
     *
     * @param deploymentArtifacts
     * @return
     */
    public static synchronized List<HeatWithParametersDefinition> extractHeatWithParametersDefinition(Map<String, ArtifactDefinition> deploymentArtifacts) {

        List<HeatWithParametersDefinition> heatAndEnvLabelList = new ArrayList<>();

        for (Entry<String, ArtifactDefinition> artifactDefinitionChild : deploymentArtifacts.entrySet()) {
            if (artifactDefinitionChild.getValue().getArtifactType().equals(ArtifactTypeEnum.HEAT_ENV.getType())) {
                for (Entry<String, ArtifactDefinition> artifactDefinitionParent : deploymentArtifacts.entrySet()) {
                    if (artifactDefinitionChild.getValue().getGeneratedFromId().equals(artifactDefinitionParent.getValue().getUniqueId())) {
                        String heatLabel = artifactDefinitionParent.getValue().getArtifactLabel();
                        String heatArtifactType = artifactDefinitionParent.getValue().getArtifactType();
                        String heatArtifactDisplayName = artifactDefinitionParent.getValue().getArtifactDisplayName();
                        List<HeatParameterDataDefinition> heatParameterDefinition = artifactDefinitionParent.getValue().getHeatParameters();
                        String heatEnvLabel = artifactDefinitionChild.getValue().getArtifactLabel();
                        String heatEnvArtifactType = artifactDefinitionChild.getValue().getArtifactType();
                        heatAndEnvLabelList.add(new HeatWithParametersDefinition(heatLabel, heatEnvLabel, heatArtifactType, heatEnvArtifactType, heatArtifactDisplayName, heatParameterDefinition));
                        break;
                    }
                }
            }
        }
        return heatAndEnvLabelList;
    }


    private static synchronized void setFileToPair(File file, String currentExtension, HeatAndHeatEnvNamesPair pair) {
        if (!currentExtension.equals("env")) {
            pair.setHeatFileName(file);
        } else {
            pair.setHeatEnvFileName(file);
        }
    }

    private static synchronized Map<String, File> generateDefaultEnvFiles(Map<String, HeatAndHeatEnvNamesPair> filesPairMap, String filePath) throws Exception {

        Map<String, File> generatedEnvFilesMap = new HashMap<>();
        for (Entry<String, HeatAndHeatEnvNamesPair> pair : filesPairMap.entrySet()) {
            Map<String, Pair<String, Object>> envParametersMap = getEnvParametersMap(pair);
            File generatedEnvFile = createEnvFile(envParametersMap, new File(filePath + pair.getKey() + ".env"));
            generatedEnvFilesMap.put(pair.getKey(), generatedEnvFile);
        }
        return generatedEnvFilesMap;
    }

    private static synchronized File createEnvFile(Map<String, Pair<String, Object>> envParametersMap, File fileToWrite) throws IOException {

        FileHandling.writeToFile(fileToWrite, PARAMETERS + ":", 0);
        FileHandling.writeToFile(fileToWrite, envParametersMap, 2);
        return fileToWrite;
    }

    private static synchronized Map<String, Pair<String, Object>> getEnvParametersMap(Entry<String, HeatAndHeatEnvNamesPair> pair) throws Exception {
        File heatFileName = pair.getValue().getHeatFileName();
        File heatEnvFileName = pair.getValue().getHeatEnvFileName();
        Map<String, Pair<String, Object>> envParametersMap = new HashMap<>();
        fillParametersMapFromHeatFile(heatFileName, envParametersMap);
        fillParametersMapFromHeatEnvFile(heatEnvFileName, envParametersMap);
        return envParametersMap;
    }

    private static synchronized void fillParametersMapFromHeatEnvFile(File heatEnvFileName, Map<String, Pair<String, Object>> envParametersMap) throws Exception {
        if (heatEnvFileName != null) {
            Map<String, Object> mapHeatEnvFileParameters = FileHandling.parseYamlFileToMapByPattern(heatEnvFileName, PARAMETERS);
            for (Map.Entry<String, Object> parameter : mapHeatEnvFileParameters.entrySet()) {
                String key = parameter.getKey();
                Pair<String, Object> pair;
                if (envParametersMap.containsKey(key)) {
                    if (envParametersMap.get(key).left.equals("string") && parameter.getValue() != null) {
                        pair = Pair.create(envParametersMap.get(key).left, "\"" + parameter.getValue() + "\"");
                    } else if (envParametersMap.get(key).left.equals("string") && parameter.getValue() == null) {
                        pair = Pair.create(envParametersMap.get(key).left, "");
                    } else if (parameter.getValue() == null) {
                        pair = Pair.create(envParametersMap.get(key).left, "");
                    } else if (envParametersMap.get(key).left.equals("json") && parameter.getValue() != null) {
                        String pairValue = "";
                        Gson gson = new Gson();
                        if (parameter.getValue() instanceof java.util.LinkedHashMap) {
                            pairValue = gson.toJson(parameter.getValue());
                        }
                        pair = Pair.create(envParametersMap.get(key).left, pairValue);

                    } else if (envParametersMap.get(key).left.equals("json") && parameter.getValue() == null) {
                        pair = Pair.create(envParametersMap.get(key).left, "");
                    } else {
                        pair = Pair.create(envParametersMap.get(key).left, parameter.getValue());
                    }
                    envParametersMap.put(key, pair);
                }
            }
        }
    }

    @SuppressWarnings("unchecked")
    private static synchronized void fillParametersMapFromHeatFile(File heatFileName, Map<String, Pair<String, Object>> envParametersMap) throws Exception {
        Map<String, Object> mapHeatFileParameters = FileHandling.parseYamlFileToMapByPattern(heatFileName, PARAMETERS);
        for (Map.Entry<String, Object> parameter : mapHeatFileParameters.entrySet()) {
            Map<String, Object> value = (Map<String, Object>) parameter.getValue();
            Pair<String, Object> pair;
            if (value.get("type").toString().equals("string") && value.get("default") != null) {
                pair = Pair.create(value.get("type").toString(), "\"" + value.get("default") + "\"");
            } else if (value.get("type").toString().equals("string") && value.get("default") == null) {
                pair = Pair.create(value.get("type").toString(), "");
            } else if (value.get("default") == null) {
                pair = Pair.create(value.get("type").toString(), "");
            } else {
                pair = Pair.create(value.get("type").toString(), value.get("default"));
            }
            envParametersMap.put(parameter.getKey(), pair);
        }
    }

}