package org.argeo.slc.ant;

import java.io.File;
import java.util.List;
import java.util.Vector;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.ProjectHelper;

import org.argeo.slc.core.structure.StructureElement;
import org.argeo.slc.core.structure.StructurePath;
import org.argeo.slc.core.structure.StructureRegistry;

public class AntRegistryUtil {
	private static Log log = LogFactory.getLog(AntRegistryUtil.class);

	public static StructureRegistry readRegistry(File antFile) {

		Project p = new Project();
		p.setUserProperty("ant.file", antFile.getAbsolutePath());
		p.init();
		ProjectHelper helper = new SlcProjectHelper();
		p.addReference("ant.projectHelper", helper);
		helper.parse(p, antFile);

		StructureRegistry registry = (StructureRegistry) p
				.getReference(SlcProjectHelper.REF_STRUCTURE_REGISTRY);
		registry.setMode(StructureRegistry.READ);

		p.executeTarget(p.getDefaultTarget());
		return registry;
	}

	public static void runActive(File antFile, List<StructurePath> activePaths) {

		Project p = new Project();
		p.setUserProperty("ant.file", antFile.getAbsolutePath());
		p.init();
		ProjectHelper helper = new SlcProjectHelper();
		p.addReference("ant.projectHelper", helper);
		helper.parse(p, antFile);

		StructureRegistry registry = (StructureRegistry) p
		.getReference(SlcProjectHelper.REF_STRUCTURE_REGISTRY);
		registry.setMode(StructureRegistry.ACTIVE);
		registry.setActivePaths(activePaths);
		p.executeTarget(p.getDefaultTarget());
	}

	public static void main(String[] args) {
		File antFile = new File(
				"C:/dev/workspaces/default/org.argeo.slc/src/test/ant/build.xml");
		System
				.setProperty(SlcProjectHelper.PROP_APPLICATION_CONTEXT,
						"C:/dev/workspaces/default/org.argeo.slc/src/test/ant/applicationContext.xml");
		StructureRegistry registry = AntRegistryUtil.readRegistry(antFile);

		StringBuffer buf = new StringBuffer("");

		int count = 0;
		List<StructurePath> activePaths = new Vector<StructurePath>();
		for (StructureElement element : registry.listElements()) {
			buf.append(element.getPath());
			if (count != 0 && count % 2 == 0) {
				// skip
			} else {
				activePaths.add(element.getPath());
				buf.append(" <");
			}
			buf.append('\n');
			count++;
		}
		log.info(buf);

		runActive(antFile, activePaths);

	}

}