/*
 * Copyright 2014 Federal Chancellery Austria
 * MOA-ID has been developed in a cooperation between BRZ, the Federal
 * Chancellery Austria - ICT staff unit, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */
package at.asitplus.eidas.specific.connector.config;

import java.net.MalformedURLException;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import at.asitplus.eidas.specific.connector.MSeIDASNodeConstants;
import at.gv.egiz.eaaf.core.api.idp.IConfiguration;
import at.gv.egiz.eaaf.core.impl.utils.FileUtils;

/**
 * @author tlenz
 *
 */
@Configuration
@EnableWebMvc
public class StaticResourceConfiguration extends WebMvcConfigurerAdapter {
	private static final Logger log = LoggerFactory.getLogger(StaticResourceConfiguration.class);
	private static final String[] CLASSPATH_RESOURCE_LOCATIONS = {
			"/"
		};
	
	@Autowired private IConfiguration basicConfig;
	

	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		String staticResources = basicConfig.getBasicConfiguration(MSeIDASNodeConstants.PROP_CONFIG_WEBCONTENT_STATIC_PATH);
		try {
			if (StringUtils.isNotEmpty(staticResources)) {
				String absPath = FileUtils.makeAbsoluteURL(staticResources , basicConfig.getConfigurationRootDirectory());
				if (!absPath.endsWith("/"))
					absPath += "/";
					
				registry.addResourceHandler("/static/**").addResourceLocations(absPath);
				log.info("Add Ressourcefolder: " + absPath + " for static Web content");
				
			} else
				log.debug("No Ressourcefolder for static Web content");
				
		} catch (MalformedURLException e) {
			log.warn("Can NOT initialize ressourcefolder for static Web content", e);
			
		}
		
		registry.addResourceHandler("/**").addResourceLocations(CLASSPATH_RESOURCE_LOCATIONS);
		
	    
	}
}