/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * Copyright (C) 2017 Huawei Technologies Co., Ltd. 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.mso.openstack.utils;



import java.util.HashSet;
import java.util.ArrayList;
import java.util.Set;
import org.openecomp.mso.db.catalog.beans.HeatTemplateParam;
import org.openecomp.mso.logger.MsoLogger;

public class MsoHeatEnvironmentEntry {

    private static final MsoLogger LOGGER = MsoLogger.getMsoLogger (MsoLogger.Catalog.RA);
    
	private Set<MsoHeatEnvironmentParameter> parameters = null;
	private Set<MsoHeatEnvironmentResource> resources = null;
	private StringBuilder rawEntry = null;
	private boolean valid = true;
	private String errorString = null;
	private StringBuilder resourceRegistryEntryRaw = null;
	
	public MsoHeatEnvironmentEntry() {
		super();
	}
	
	public MsoHeatEnvironmentEntry(StringBuilder sb) {
		this();
		this.rawEntry = sb;
		this.processRawEntry();
	}
	
	private void processRawEntry() {
		try {
			if (this.rawEntry == null || "".equals(this.rawEntry))
				return;
			byte[] b = this.rawEntry.toString().getBytes();
			MsoYamlEditorWithEnvt yaml = new MsoYamlEditorWithEnvt(b);
			this.parameters = yaml.getParameterListFromEnvt();
			//this.resources = yaml.getResourceListFromEnvt();
			StringBuilder sb = this.getResourceRegistryRawEntry();
			if (sb == null) {
				this.resourceRegistryEntryRaw = new StringBuilder("");
			} else {
				this.resourceRegistryEntryRaw = sb;
			}
		} catch (Exception e) {
		    LOGGER.debug("Exception:", e);
			this.valid = false;
			this.errorString = e.getMessage();
			//e.printStackTrace();
		}
	}
	
	public boolean isValid() {
		return this.valid;
	}
	public String getErrorString() {
		return this.errorString;
	}
	
	public Set<MsoHeatEnvironmentParameter> getParameters() {
		return this.parameters;
	}
	public Set<MsoHeatEnvironmentResource> getResources() {
		return this.resources;
	}
	public void setParameters(Set<MsoHeatEnvironmentParameter> paramSet) {
		if (paramSet == null) {
			this.parameters = null;
		} else {
			this.parameters = paramSet;
		}
	}
	public void setResources(Set<MsoHeatEnvironmentResource> resourceSet) {
		if (resourceSet == null) {
			this.resources = null;
		} else {
			this.resources = resourceSet;
		}
	}
	
	public void addParameter(MsoHeatEnvironmentParameter hep) {
		if (this.parameters == null) {
			this.parameters = new HashSet<>();
		}
		this.parameters.add(hep);
	}
	public void addResource(MsoHeatEnvironmentResource her) {
		if (this.resources == null) {
			this.resources = new HashSet<>();
		}
		this.resources.add(her);
	}
	
	public int getNumberOfParameters() {
		return this.parameters.size();
	}
	public int getNumberOfResources() {
		return this.resources.size();
	}
	
	public boolean hasResources() {
		if (this.resources != null && this.resources.size() > 0) {
			return true;
		} 
		return false;
	}
	public boolean hasParameters() {
		if (this.parameters != null && this.parameters.size() > 0) {
			return true;
		}
		return false;
	}
	
	public boolean containsParameter(String paramName) {
		boolean contains = false;
		if (this.parameters == null || this.parameters.size() < 1) {
			return false;
		}
		if (this.parameters.contains(new MsoHeatEnvironmentParameter(paramName))) {
			contains = true;
		}
		return contains;
	}
	
	public boolean containsParameter(String paramName, String paramAlias) {
		if (this.containsParameter(paramName)) {
			return true;
		}
		if (this.containsParameter(paramAlias)) {
			return true;
		}
		return false;
	}
	
	public StringBuilder toFullStringExcludeNonParams(Set<HeatTemplateParam> params) {
		// Basically give back the envt - but exclude the params that aren't in the HeatTemplate 
		
		StringBuilder sb = new StringBuilder();
		ArrayList<String> paramNameList = new ArrayList<String>(params.size());
		for (HeatTemplateParam htp : params) {
			paramNameList.add(htp.getParamName());
		}
		
		if (this.hasParameters()) {
			sb.append("parameters:\n");
			for (MsoHeatEnvironmentParameter hep : this.parameters) {
				String paramName = hep.getName();
				if (paramNameList.contains(paramName)) {
					// This parameter *is* in the Heat Template - so include it:
					sb.append("  " + hep.getName() + ": " + hep.getValue() + "\n");
					// New - 1607 - if any of the params mapped badly - JUST RETURN THE ORIGINAL ENVT!
					if (hep.getValue().startsWith("_BAD")) {
						return this.rawEntry;
					}
				} 
			}
			sb.append("\n");
		}
//		if (this.hasResources()) {
//			sb.append("resource_registry:\n");
//			for (MsoHeatEnvironmentResource her : this.resources) {
//				sb.append("   \"" + her.getName() + "\": " + her.getValue() + "\n");
//			}
//		}
		sb.append("\n");
		sb.append(this.resourceRegistryEntryRaw);				
		return sb;
	}
	
	public StringBuilder toFullString() {
		StringBuilder sb = new StringBuilder();
		
		if (this.hasParameters()) {
			sb.append("parameters:\n");
			for (MsoHeatEnvironmentParameter hep : this.parameters) {
				sb.append("   " + hep.getName() + ":  " + hep.getValue() + "\n");
			}
			sb.append("\n");
		}
//		if (this.hasResources()) {
//			sb.append("resource_registry:\n");
//			for (MsoHeatEnvironmentResource her : this.resources) {
//				sb.append("   \"" + her.getName() + "\": " + her.getValue() + "\n");
//			}
//		}
		sb.append("\n");
		sb.append(this.resourceRegistryEntryRaw);			
		return sb;
	}

	public StringBuilder getRawEntry() {
		return this.rawEntry;
	}
	
	private StringBuilder getResourceRegistryRawEntry() {
		
		if (this.rawEntry == null) {
			return null;
		}
		
		StringBuilder sb = new StringBuilder();
		int indexOf = this.rawEntry.indexOf("resource_registry:");
		if (indexOf < 0) { // no resource_registry:
			return null;
		}
		sb.append(this.rawEntry.substring(indexOf));
		return sb;
	}
	
}