package com.cipres.mrBayesPlugin;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;

import org.ngbw.directclient.CiApplication;
import org.ngbw.directclient.CiClient;

import com.biomatters.geneious.publicapi.components.Dialogs;
import com.cipres.mrBayesPlugin.models.UserModel;
import com.cipres.mrBayesPlugin.utilities.CipresUtilities;
import com.cipres.mrBayesPlugin.utilities.ClientCheckResult;
import com.cipres.mrBayesPlugin.utilities.DataHandlingUtilities;

public class CipresMrBayesInitializer {
	public static final CipresMrBayesInitializer Instance =  new CipresMrBayesInitializer();
	private CiClient myClient = null;
	private boolean userLoggedIn = false;
	private UserModel user = null;
	
	private CipresMrBayesInitializer()
	{}
	
	public synchronized boolean initialize(String username, String password)
	{
        //String username = null;
        //String password = null;
        String appName = null;
        String appKey = null;
        
		if (!userLoggedIn)
		{
			if (CipresUtilities.isNewUser())
			{
		        Properties prop = new Properties();
		    	OutputStream output = null;

		    	try {

		    		output = new FileOutputStream(CipresUtilities.getConfigFilePath());

		    		// set the properties value
		    		prop.setProperty("URL", CipresUtilities.SERVICEURL);
		    		prop.setProperty("APPNAME", CipresUtilities.APPNAME);
		    		prop.setProperty("APPID", CipresUtilities.APPID);
		    		prop.setProperty("USERNAME", username == null? "" : username);
		    		prop.setProperty("PASSWORD", password == null? "" : password);
		    		prop.setProperty("REPORTEMAIL", CipresUtilities.REPORTEMAIL);

		    		// save properties to project root folder
		    		prop.store(output, null);

		    	} catch (IOException io) {
		    		io.printStackTrace();
		    	} finally {
		    		if (output != null) {
		    			try {
		    				output.close();
		    			} catch (IOException e) {
		    				e.printStackTrace();
		    			}
		    		}

		    	}
		    	
		    	//Dialogs.showMessageDialog("Configuration file: " + CipresUtilities.getConfigFilePath() + " has been created for you. \n"
		    	//		+ "USERNAME and  PASSWORD fields need to be defined in " + CipresUtilities.getConfigFilePath() + ".\n"
	    		//		+ "Please create the account at 'https://www.phylo.org/restusers'  and update the above mentioned file and relaunch the application.");
		    	
	    		//return false;
			}

			Properties prop = new Properties();
	    	InputStream input = null;

	    	try {

	    		input = new FileInputStream(CipresUtilities.getConfigFilePath());

	    		// load a properties file
	    		prop.load(input);
	    		username = prop.getProperty("USERNAME");
	    		password = prop.getProperty("PASSWORD");
	    		appKey = prop.getProperty("APPID");
	            appName = prop.getProperty("APPNAME");
	 
	    	} catch (IOException ex) {
	    		ex.printStackTrace();
	    	} finally {
	    		if (input != null) {
	    			try {
	    				input.close();
	    			} catch (IOException e) {
	    				e.printStackTrace();
	    			}
	    		}
	    	}
	    	    	
	        
	    	if(!(appName.equals(CipresUtilities.APPNAME) && appKey.startsWith(CipresUtilities.APPNAME))){
		        Dialogs.showMessageDialog("APPNAME is not defined correctly in " + CipresUtilities.getConfigFilePath() + ".\t" + appName + "\t" + CipresUtilities.APPNAME);
		        return false;
	    	}
	    	    	
	    	if(CipresUtilities.checkEmptyString(username) || CipresUtilities.checkEmptyString(password) || CipresUtilities.checkEmptyString(appKey)){
	    		Dialogs.showMessageDialog("USERNAME, and  PASSWORD fields need to be defined in " + CipresUtilities.getConfigFilePath() + ".\n"
	    				+ "Please create the account at 'https://www.phylo.org/restusers'  and update the above mentioned file and relaunch the application.");
		    	return false;
	    	}
	    	
	    	System.setProperty("PYCIPRES_FILE", CipresUtilities.CONFIGFILE);
	    	CiApplication app = CiApplication.getInstance();
	    	DataHandlingUtilities handler = DataHandlingUtilities.getInstance();
	    	String url = app.getRestUrl();
		    
	    	user = new UserModel(username, password, url, appKey, appName);
	    	handler.addUser(user);
	    	myClient = handler.getClient();
		    
	    	ClientCheckResult result = CipresUtilities.clientCheck(myClient);

	    	if (result == ClientCheckResult.UNAUTHORIZED)
	    	{
	    		Dialogs.showMessageDialog("Login to CIPRES REST failed. Your login credentials(USERNAME/PASSWORD/APPID) for CIPRES REST seem to be incorrect. "
	    								   + "Please update USERNAME/PASSWORD in " + CipresUtilities.getConfigFilePath() + ".");
	    		return false;    		
	    	}
	    	else if (result == ClientCheckResult.FALSE){
	    		Dialogs.showMessageDialog("Please make sure you have correct URL in " + CipresUtilities.getConfigFilePath() + ".");
	    		return false;
	    	}
	    	
	    	userLoggedIn = true;
	        			
		}
		return userLoggedIn;
	}
	
	public synchronized CiClient getMyClient()
	{
		return myClient;
	}
	
	
	public synchronized boolean isUserLoggedIn()
	{
		return userLoggedIn;
	}
	
	public synchronized UserModel getUserModel()
	{
		return user;
	}
}