/*******************************************************************************
 * Copyright 2017 Graz University of Technology
 * EAAF-Core Components has been developed in a cooperation between EGIZ,  
 * A-SIT+, A-SIT, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.2 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:
 * https://joinup.ec.europa.eu/news/understanding-eupl-v12
 *
 * 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.gv.egiz.eaaf.core.impl.gui;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;

import at.gv.egiz.eaaf.core.api.gui.IGUIBuilderConfiguration;

/**
 * @author tlenz
 *
 */
public abstract class AbstractGUIFormBuilderConfiguration implements IGUIBuilderConfiguration {

	public static final String PARAM_AUTHCONTEXT = "contextPath";
	public static final String PARAM_FORMSUBMITENDPOINT = "submitEndpoint";	
	public static final String PARAM_PENDINGREQUESTID = "pendingReqID";
	
	private String authURL = null;
	private String viewName = null;
	private String formSubmitEndpoint = null;
	
	/**
	 * @param authURL IDP PublicURL-Prefix which should be used, but never null
	 * @param viewName Name of the template (with suffix) but never null
	 * @param formSubmitEndpoint EndPoint on which the form should be submitted, 
	 * or null if the form must not submitted
	 * 
	 */
	public AbstractGUIFormBuilderConfiguration(String authURL, String viewName, String formSubmitEndpoint) {
		if (viewName.startsWith("/"))
			this.viewName = viewName.substring(1);
		else
			this.viewName = viewName;
		
		if (authURL.endsWith("/"))
			this.authURL = authURL.substring(0, authURL.length() - 1);
		else
			this.authURL = authURL;
		
		if (StringUtils.isNotEmpty(formSubmitEndpoint)) {
			if (formSubmitEndpoint.startsWith("/"))
				this.formSubmitEndpoint = formSubmitEndpoint;
			else		
				this.formSubmitEndpoint = "/" + formSubmitEndpoint;
		}
	}
	
	
	/**
	 * Define the parameters, which should be evaluated in the template <br>
	 * <b>IMPORTANT:</b> external HTML escapetion is required, because it is NOT done internally during the building process
	 * 
	 * @return Map of parameters, which should be added to template
	 */
	abstract protected Map<String, Object> getSpecificViewParameters();
		
	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.frontend.builder.IGUIBuilderConfiguration#getViewName()
	 */
	@Override
	public final String getViewName() {
		return this.viewName;
		
	}
	

	/* (non-Javadoc)
	 * @see at.gv.egovernment.moa.id.auth.frontend.builder.IGUIBuilderConfiguration#getViewParameters()
	 */
	@Override
	public final Map<String, Object> getViewParameters() {
		//get parameters from detail implementation
		Map<String, Object> specParams = getSpecificViewParameters();
		if (specParams == null)
			specParams = new HashMap<String, Object>();
		
		//add generic parameters
		specParams.put(PARAM_AUTHCONTEXT, this.authURL);		
		if (this.formSubmitEndpoint != null)
			specParams.put(PARAM_FORMSUBMITENDPOINT, this.formSubmitEndpoint);
		
		return specParams;
		
	}

}