package at.gv.egiz.eidas.specific.connector.gui;

import java.io.InputStream;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import at.gv.egiz.eaaf.core.api.gui.IGUIBuilderConfiguration;
import at.gv.egiz.eaaf.core.api.gui.IGUIFormBuilder;
import at.gv.egiz.eaaf.core.exceptions.GUIBuildException;
import at.gv.egiz.eaaf.core.impl.gui.AbstractGUIFormBuilderImpl;

@Service("DefaultGUIBuilderImpl")
public class DefaultGUIBuilderImpl extends AbstractGUIFormBuilderImpl implements IGUIFormBuilder {
	private static final Logger log = LoggerFactory.getLogger(DefaultGUIBuilderImpl.class);
	
	private static final String CLASSPATH_HTMLTEMPLATES_DIR = "templates/";
	
	public DefaultGUIBuilderImpl() throws GUIBuildException {
		super(); 
		 
	}

	@Override
	protected InputStream getInternalTemplate(IGUIBuilderConfiguration config) throws GUIBuildException {
		String viewName = config.getViewName();
		log.debug("GUI template:" + viewName + " is not found in configuration directory. "
				+ " Load template from project library ... ");					
		String pathLocation = getInternalClasspathTemplateDir(config, CLASSPATH_HTMLTEMPLATES_DIR) + viewName;
		try  {			
			InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream(pathLocation);				
			return is;						
			
		} catch (Exception e1) {
			log.error("GUI template:" + pathLocation + " is NOT loadable  from classpath!", e1);
			throw new GUIBuildException("GUI template:" + pathLocation + " is NOT loadable from classpath!", e1);
			
		}			
		
	}

}