package org.gcube.data.access.storagehub;

import jakarta.inject.Singleton;
import javax.jcr.Repository;
import javax.jcr.SimpleCredentials;
import javax.naming.Context;
import javax.naming.InitialContext;

import org.apache.jackrabbit.api.JackrabbitRepository;
import org.apache.jackrabbit.api.JackrabbitSession;
import org.gcube.data.access.storagehub.services.RepositoryInitializer;
import org.gcube.data.access.storagehub.services.admin.InitScript;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Singleton
public class RepositoryInitializerImpl implements RepositoryInitializer{

	private static Logger log =  LoggerFactory.getLogger(RepositoryInitializerImpl.class);

	private static RepositoryInitializer instance = new RepositoryInitializerImpl();

	public static RepositoryInitializer get(){
		return instance;
	}

	private Repository repository;
	private boolean jackrabbitInitialized = false;

	@Override
	public Repository getRepository(){
		return repository;
	}

	protected RepositoryInitializerImpl(){
		try {
			InitialContext context = new InitialContext();
			Context environment = (Context) context.lookup("java:comp/env");
			repository = (Repository) environment.lookup("jcr/repository");
		}catch (Throwable e) {
			log.error("error initializing repository", e);
			throw new RuntimeException("error initializing repository",e);
		}
	}



	public void shutdown() {
		((JackrabbitRepository)repository).shutdown();
	}

	@Override
	public synchronized void initContainerAtFirstStart(SimpleCredentials credentials) {
		try {
			log.info("credential are {} {}",credentials.getUserID(), new String(credentials.getPassword()));
			JackrabbitSession ses = (JackrabbitSession) repository.login(credentials);
			try {
				boolean notAlreadyDone = !jackrabbitInitialized && !ses.getRootNode().hasNode("Home");
				if (notAlreadyDone) 
					new InitScript().init(ses);
				else log.info("jackrabbit is already initialized");
			}finally {
				ses.logout();
			}
		} catch (Exception e) {
			log.warn("error initialising Jackrabbit",e);
		}
		jackrabbitInitialized = true;
	}


}