/*
 * Copyright (c) 2017 NetApp
 * All rights reserved
 */

package com.onaro.util.jfc.wizard.field;

import java.util.HashMap;
import java.util.Map;

import javax.swing.JTextField;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.onaro.util.jfc.mixedvalue.MixedValuePasswordField;

public class PasswordField extends StringField {

    /**
     * Caches encrypted passwords so same plain-text will always get the same encryption. This is needed as to avoid
     * generation of "audit" events when the password doesn't change.
     */
    private Map<String, String> encryptedByPassword = new HashMap<>(2);

    public PasswordField(FieldListener listner) {
        super(listner);
        encryptedByPassword.put(StringUtils.EMPTY, "EW84z6F3MDQ=m3Y5suTid40="); //$NON-NLS-1$
    }


	/**
     * Gets the encrypted value. The method performes a cache so that multiple gets will not generate multiple encryption
     * operations.
     *
     * @return encrypted value
     */
    public String getValue() {
        String value = super.getValue();
        
        // Returns null if there is no value entered in this field, for example, in a situation where 
        // the user clears up the text-box corresponding to the password value.
        //
        // HEADSUP:
        // If this field is "mandatory" by returning a NULL we guarantee that the validation against
        // empty data for mandatory field takes place.  If we return an empty string (return "") is not the same effect,
        // due to the fact that the validation agaist empty data for mandatory field will check for NULL's and an empty string is a "value".
        if (value == null) 
        	return null;

        return value;
    }

    /**
     * Set the value as clear text.
     */
    public void setValue(String value) {
        super.setValue(value);
    }

    protected JTextField createField() {
        return new MixedValuePasswordField();
    }

    public void setMixedValue(boolean mixedValue) {
        ((MixedValuePasswordField)getComponent()).setMixed(mixedValue);
    }

    public boolean isMixedValue() {
        return ((MixedValuePasswordField)getComponent()).isMixed();
    }
}