/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.jsf.conventions.layers;

import java.io.FileNotFoundException;
import java.io.StringWriter;
import java.util.Properties;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.event.Event;
import javax.enterprise.inject.spi.BeanManager;
import javax.inject.Inject;
import javax.inject.Named;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.jboss.forge.parser.JavaParser;
import org.jboss.forge.parser.java.JavaClass;
import org.jboss.forge.parser.java.JavaSource;
import org.jboss.forge.project.Project;
import org.jboss.forge.project.facets.JavaSourceFacet;
import org.jboss.forge.resources.java.JavaResource;
import org.jboss.forge.shell.PromptType;
import org.jboss.forge.shell.events.PickupResource;
import org.jboss.forge.shell.plugins.Alias;
import org.jboss.forge.shell.plugins.Command;
import org.jboss.forge.shell.plugins.Current;
import org.jboss.forge.shell.plugins.Help;
import org.jboss.forge.shell.plugins.Option;
import org.jboss.forge.shell.plugins.Plugin;
import org.jboss.forge.shell.plugins.RequiresFacet;

/**
 *
 * @author rmpestano Oct 23, 2011 17:16:47 PM
 */
@Alias("layers")
@RequiresFacet(JavaSourceFacet.class)
@Help("plugin for generating boilerplate code for conventions framework")
public class LayersPlugin implements Plugin{

    @Inject
    private Project project;

    @Inject
    BeanManager beanManager;

    @Inject
    private Event<PickupResource> pickup;

    @Inject
    @Current
    private JavaResource resource;

    static {
        Properties properties = new Properties();
        properties.setProperty("resource.loader", "class");
        properties.setProperty("class.resource.loader.class", "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");
        Velocity.init(properties);
    }

    @Command(value = "generate-controller", help = "Generate managed bean and service from an entity class")
    public void generateController(
            @Option(name = "class", required = true, type = PromptType.JAVA_CLASS,help="full qualified class name") JavaResource domainClass) throws FileNotFoundException{

        if(project == null){//always resolve to null
            System.out.println("Project null");
        }
        JavaSourceFacet java = project.getFacet(JavaSourceFacet.class);
        JavaSource<?> javaSource = domainClass.getJavaSource();
        VelocityContext context = new VelocityContext();

        StringBuilder managedBeanPackage = new StringBuilder(javaSource.getPackage().substring(0,javaSource.getPackage().lastIndexOf(".")));
        managedBeanPackage.append("controller");
        context.put("package", managedBeanPackage);
        context.put("entity", javaSource.getName());
        context.put("mbeanName", javaSource.getName().toLowerCase().concat("MBean"));
        context.put("packageImport", javaSource.getPackage());
        StringWriter writer = new StringWriter();
        Velocity.mergeTemplate("TemplateController.vtl", "UTF-8", context, writer);
        JavaClass mbean = JavaParser.parse(JavaClass.class, writer.toString());
        java.saveJavaSource(mbean);
        pickup.fire(new PickupResource(java.getTestJavaResource(mbean)));
    }

}