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

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;

import at.gv.egovernment.moa.id.commons.db.ConfigurationDBUtils;
import at.gv.egovernment.moa.id.commons.db.ex.MOADatabaseException;
import at.gv.egovernment.moa.id.configuration.exception.ConfigurationException;
import at.gv.egovernment.moa.logging.Logger;


public class ConfigurationProvider {

	private static final String SYSTEM_PROP_CONFIG = "moa.id.webconfig";
	
	private static ConfigurationProvider instance;
	private Properties props;
	private String configFileName;
	
	public static ConfigurationProvider getInstance() throws ConfigurationException {
		if (instance == null) {
			instance =  new ConfigurationProvider();
		}
		
		return instance;
	}
	
	private ConfigurationProvider() throws ConfigurationException {
		inizialize();
	}
	
	private void inizialize() throws ConfigurationException {
		
		configFileName = System.getProperty(SYSTEM_PROP_CONFIG);
		
	    if (configFileName == null) {
	        throw new ConfigurationException("config.01");
	    }
	    Logger.info("Loading MOA-ID-AUTH configuration " + configFileName);
	    
		//Initial Hibernate Framework
		Logger.trace("Initializing Hibernate framework.");
			
		//Load MOAID-2.0 properties file
		File propertiesFile = new File(configFileName);
		FileInputStream fis;
		props = new Properties();


		try {
			fis = new FileInputStream(propertiesFile);
			props.load(fis);
			
			// initialize hibernate
			synchronized (ConfigurationProvider.class) {
				
				//Initial config Database
				ConfigurationDBUtils.initHibernate(props);			
			  }
			Logger.trace("Hibernate initialization finished.");
			
			
				
		} catch (FileNotFoundException e) {
			throw new ConfigurationException("config.01", e);
		} catch (IOException e) {
			throw new ConfigurationException("config.02", e);
		} catch (MOADatabaseException e) {
			throw new ConfigurationException("config.03", e);
		}
			
	}
	
	public boolean isLoginDeaktivated() {
		String result = props.getProperty("general.login.deaktivate", "false");
		return Boolean.parseBoolean(result);
	}
	
	public String getConfigFile() {
		return configFileName;
	}
}