/*******************************************************************************
 * Copyright 2017 Capital One Services, LLC and Bitwise, Inc.
 * 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.
 *******************************************************************************/


package hydrograph.ui.graph.debug.service;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.commons.io.FileUtils;
import org.eclipse.core.runtime.Platform;
import org.slf4j.Logger;

import hydrograph.ui.common.debug.service.IDebugService;
import hydrograph.ui.common.util.XMLConfigUtil;
import hydrograph.ui.dataviewer.utilities.Utils;
import hydrograph.ui.graph.execution.tracking.replay.ViewExecutionHistoryUtility;
import hydrograph.ui.graph.job.Job;
import hydrograph.ui.graph.utility.DataViewerUtility;
import hydrograph.ui.graph.utility.ViewDataUtils;
import hydrograph.ui.logging.factory.LogFactory;


/**
 * The Class PurgeViewDataFiles will remove ViewData Files on tool close.
 * @author Bitwise
 *
 */
public class PurgeViewDataFiles  implements IDebugService{

	private static final Logger logger = LogFactory.INSTANCE.getLogger(PurgeViewDataFiles.class);
	private static final String JOB_TRACKING_LOG_PATH = "//logger//JobTrackingLog";
	private static final String JOB_TRACKING_CSV_FILE_PATH = "debugfiles";

	/* (non-Javadoc)
	 * @see hydrograph.ui.common.debug.service.IDebugService#deleteDebugFiles()
	 */
	@Override
	public void deleteDebugFiles() {
		logger.info("call to api to remove debug files::::::::");
		ViewDataUtils dataUtils = ViewDataUtils.getInstance();
		ViewExecutionHistoryUtility viewExecutionHistoryUtility = ViewExecutionHistoryUtility.getInstance();
		
		Map<String, List<Job>> viewDataJobMap = viewExecutionHistoryUtility.getTrackingJobs();
		
		if(Utils.INSTANCE.isPurgeViewDataPrefSet()){
			for(Entry<String, List<Job>> entry : viewDataJobMap.entrySet()){
				List<Job> value =  (List<Job>) entry.getValue();
		        for(Job job : value){
		        	dataUtils.deleteBasePathDebugFiles(job);
		        	dataUtils.deleteSchemaAndDataViewerFiles(job.getUniqueJobId());
		        	DataViewerUtility.INSTANCE.closeDataViewerWindows(job);
		        }
			}
			viewExecutionHistoryUtility.getTrackingJobs().clear();
		}
		
		purgeViewExecutionHistoryLogs();
		purgeViewDataCsvFiles();
	}
	
	/**
	 * The Function will remove View Execution History Log Files. 
	  */
	private void purgeViewExecutionHistoryLogs(){
		try {
			FileUtils.cleanDirectory(new File(XMLConfigUtil.CONFIG_FILES_PATH + JOB_TRACKING_LOG_PATH));
			logger.info("Removed ViewExecutionHistory logs file:::");
		} catch (IOException exception) {
			logger.error("Failed to remove ViewExecutionHistory logs file.", exception);
		}
	}
	
	/**
	 * The Function will remove View Execution History Csv Files.
	 */
	private void purgeViewDataCsvFiles(){
		try {
			FileUtils.cleanDirectory(new File(Platform.getInstallLocation().getURL().getPath() + JOB_TRACKING_CSV_FILE_PATH));
			logger.info("Removed ViewExecutionHistory csv file:::");
		} catch (IOException exception) {
			logger.error("Failed to remove ViewExecutionHistory csv file.", exception);
		}
	}
	
	
}