package pt.ist.struts.dispatch.servlets;

import java.util.Map;
import java.util.Set;

import javax.servlet.MultipartConfigElement;
import javax.servlet.ServletContainerInitializer;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration.Dynamic;
import javax.servlet.annotation.HandlesTypes;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionServlet;

import pt.ist.struts.dispatch.annotation.Mapping;
import pt.ist.struts.dispatch.annotation.StrutsConfiguration;

@HandlesTypes({ Mapping.class, StrutsConfiguration.class })
public class StrutsFrameworkInitializer implements ServletContainerInitializer {
    @Override
    public void onStartup(Set<Class<?>> classes, ServletContext context) throws ServletException {
	System.out.println("Starting up struts framework");
	if (classes != null) {
	    for (Class<?> clazz : classes) {
		Mapping mapping = clazz.getAnnotation(Mapping.class);
		if (mapping != null) {
		    RuntimeModuleConfigFactory.registerAction((Class<? extends Action>) clazz);
		}
		StrutsConfiguration strutsConfig = clazz.getAnnotation(StrutsConfiguration.class);
		if (strutsConfig != null) {
		    RuntimeModuleConfigFactory.registerConfiguration(strutsConfig);
		}
	    }
	}

	Dynamic struts = context.addServlet("action", ActionServlet.class.getName());
	struts.setLoadOnStartup(2);
	struts.addMapping("*.do");
	struts.setMultipartConfig(new MultipartConfigElement("/tmp"));

	Map<String, String> parameters = RuntimeModuleConfigFactory.getModuleConfigMap();
	if (!parameters.containsKey("config")) {
	    parameters.put("config", "/WEB-INF/conf/struts-empty.xml");
	}
	parameters.put("debug", "3");
	parameters.put("detail", "3");
	parameters.put("validating", "true");
	parameters.put("configFactory", RuntimeModuleConfigFactory.class.getName());
	struts.setInitParameters(parameters);
    }
}