package at.gv.egovernment.moa.id.config.auth;

import java.util.Date;

import at.gv.egovernment.moa.id.commons.db.ConfigurationDBRead;
import at.gv.egovernment.moa.id.commons.db.ConfigurationDBUtils;
import at.gv.egovernment.moa.id.commons.db.dao.config.MOAIDConfiguration;
import at.gv.egovernment.moa.id.protocols.pvp2x.metadata.MOAMetadataProvider;
import at.gv.egovernment.moa.logging.Logger;


public class AuthConfigLoader implements Runnable {

	private static final long INTERVAL = 60; // 60 sec
	
	public void run() {
		while (true) {
			try {
				Thread.sleep(INTERVAL * 1000);
						
				Logger.info("check for new config.");
				MOAIDConfiguration moaidconfig = ConfigurationDBRead.getMOAIDConfiguration();
				Date dbdate = moaidconfig.getTimestampItem();
				Date pvprefresh = moaidconfig.getPvp2RefreshItem();

				Date date = AuthConfigurationProvider.getTimeStamp();
			
				if (dbdate != null && dbdate.after(date)) {
					AuthConfigurationProvider instance = AuthConfigurationProvider.getInstance();
					instance.reloadDataBaseConfig();
				}
				
				Date pvpdate = MOAMetadataProvider.getTimeStamp();
				if (pvprefresh != null && pvpdate != null && pvprefresh.after(pvpdate)) {
					MOAMetadataProvider.reInitialize();
				}
				
			} catch (Throwable e) {
				Logger.warn("MOA-ID Configuration is actually not loadable. Reuse old configuration.", e);
				
			} finally {
				ConfigurationDBUtils.closeSession();
				
			}
		}	
	}
	
	public static void start() {
		// start the session cleanup thread
		Thread configLoader = new Thread(new AuthConfigLoader());
		configLoader.setName("ConfigurationLoader");
		configLoader.setDaemon(true);
		configLoader.setPriority(Thread.MIN_PRIORITY);
		configLoader.start();
	}
}