package sub.view;

import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.stage.Stage;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;

import org.json.simple.JSONArray;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import org.json.simple.JSONObject;

public class Controller {

	Stage mainStage;

	@FXML
	private Button login;

	@FXML
	private TextField username;

	public void setMainStage(Stage stage) {
		mainStage = stage;
	}

	@FXML
	private void userLogin(ActionEvent evt){
		System.out.println(username.getText());
		System.out.println("Login is " + validateLogin(username.getText()));
	}

	private void createUserList(){
		try{
			String saveDir = "usernameList";
			String saveName = "userlist.dat";
			File temp_Dir = new File(saveDir);
	        File temp_Path = new File(saveDir+saveName);
	        temp_Dir.mkdir();
	        temp_Path.createNewFile();
	        ObjectOutputStream output = new ObjectOutputStream(new FileOutputStream(saveDir+saveName));

	        Hashtable<String,String> userList = new Hashtable<String,String>();
	        userList.put("jc2162", "jc2162");
	        userList.put("mx63", "mx63");
	        userList.put("jf10", "jf10");
	        userList.put("rb17", "rb17");
	        userList.put("dz112", "dz112");

	        output.writeObject(userList);
        }
		catch(FileNotFoundException e){ e.printStackTrace();}
		catch(IOException e){ e.printStackTrace();}
	}

	private boolean validateLogin(String user){
		//createUserList(); // run this to create the userlist file
		try{
	        ObjectInputStream input = new ObjectInputStream(new FileInputStream("usernameList"+"userlist.dat"));
	        Hashtable<String,String> userList = (Hashtable)input.readObject();

	        Enumeration users = userList.keys();
	        String key;
	        while(users.hasMoreElements()){
	        	key = (String) users.nextElement();
	        	if(key.equals(user))
	        		return true;
	        }

	        return false;
        }
		catch(FileNotFoundException e){ e.printStackTrace();}
		catch(IOException e){ e.printStackTrace();}
		catch(ClassNotFoundException e){ e.printStackTrace();}

		return false;
	}



}