/*
 * Copyright 2015-Present Entando S.r.l. (http://www.entando.com) All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */
package org.entando.entando.aps.system.init.model;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.jdom.Element;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import com.agiletec.aps.system.exception.ApsSystemException;

/**
 * @author E.Santoboni
 */
public class AbstractComponentModule {
	
	private static final Logger _logger = LoggerFactory.getLogger(AbstractComponentModule.class);
	
	protected void extractSqlResources(Element sqlResourcesElement) throws ApsSystemException {
		if (null != sqlResourcesElement) {
			List<Element> datasourceElements = sqlResourcesElement.getChildren("datasource");
			for (int j = 0; j < datasourceElements.size(); j++) {
				Element datasourceElement = datasourceElements.get(j);
				String datasourceName = datasourceElement.getAttributeValue("name");
				String sqlResourcePath = datasourceElement.getText().trim();
				this.getSqlResourcesPaths().put(datasourceName, sqlResourcePath);
			}
		}
	}
	
	protected void createPostProcesses(Element postProcessesElement, Map<String, String> postProcessClasses) throws ApsSystemException {
		if (null != postProcessesElement) {
			List<Element> postProcessElements = postProcessesElement.getChildren();
			if (null != postProcessElements && !postProcessElements.isEmpty()) {
				for (int i = 0; i < postProcessElements.size(); i++) {
					Element postProcessElement = postProcessElements.get(i);
					this.createPostProcess(postProcessElement, postProcessClasses);
				}
			}
		}
	}
	
	private void createPostProcess(Element postProcessElement, Map<String, String> postProcessClasses) throws ApsSystemException {
		try {
			String name = postProcessElement.getName();
			String className = postProcessClasses.get(name);
			if (null != className) {
				Class postProcessClass = Class.forName(className);
				IPostProcess postProcess = (IPostProcess) postProcessClass.newInstance();
				postProcess.createConfig(postProcessElement);
				if (null == this.getPostProcesses()) {
					this.setPostProcesses(new ArrayList<IPostProcess>());
				}
				this.getPostProcesses().add(postProcess);
			} else {
				_logger.error("Null post process class for process name '{}'", name);
			}
		} catch (Throwable t) {
			_logger.error("Error creating Post Process", t);
			throw new ApsSystemException("Error creating Post Process", t);
		}
	}
	
	public Resource getSqlResources(String datasourceName) {
		String path = this.getSqlResourcesPaths().get(datasourceName);
		if (null == path) {
			return null;
		}
		PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
		return resolver.getResource(path);
	}
	
	public Map<String, String> getSqlResourcesPaths() {
		return _sqlResourcesPaths;
	}
	protected void setSqlResourcesPaths(Map<String, String> sqlResourcesPaths) {
		this._sqlResourcesPaths = sqlResourcesPaths;
	}
	
	public List<IPostProcess> getPostProcesses() {
		return _postProcesses;
	}
	protected void setPostProcesses(List<IPostProcess> postProcesses) {
		this._postProcesses = postProcesses;
	}
	
	private Map<String, String> _sqlResourcesPaths = new HashMap<String, String>();
	
	private List<IPostProcess> _postProcesses;
	
}