/*
 * Copyright 2006-2019 DLR, Germany
 * 
 * SPDX-License-Identifier: EPL-1.0
 * 
 * https://rcenvironment.de/
 */

package de.rcenvironment.core.login;

import org.easymock.EasyMock;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;

import de.rcenvironment.core.authentication.AuthenticationException;
import de.rcenvironment.core.authentication.AuthenticationService;
import de.rcenvironment.core.configuration.ConfigurationService;
import de.rcenvironment.core.notification.DistributedNotificationService;

/**
 * 
 * Mock factory for the login unit tests.
 * 
 * @author Doreen Seider
 * @author Tobias Menden
 */
public final class LoginMockFactory {

    /**
     * Constant.
     */
    public static final String PASSWORD = "password";

    /**
     * Constant.
     */
    public static final String BUNDLE_SYMBOLIC_NAME = "de.rcenvironment.rce.login";

    /**
     * Constant.
     */
    public static final int VALIDITY_IN_DAYS = 7;

    /**
     * The instance of this singleton class.
     */
    private static LoginMockFactory instance;

    /**
     * The bundle context mock.
     */
    private BundleContext bundleContextMock;

    /**
     * The broken bundle context mock.
     */
    private BundleContext brokenBundleContextMock;

    /**
     * Constructor.
     */
    private LoginMockFactory() {
        super();
    }

    /**
     * Getter.
     * 
     * @return the instance of this singleton object.
     */
    public static LoginMockFactory getInstance() {
        if (instance == null) {
            instance = new LoginMockFactory();
        }

        return instance;
    }

    /**
     * Getter.
     * 
     * @return the bundle context mock object.
     * @throws AuthenticationException Thrown on error.
     */
    public BundleContext getBundleContextMock() throws AuthenticationException {
        if (bundleContextMock == null) {
            bundleContextMock = createBundleContextMock(BUNDLE_SYMBOLIC_NAME);
        }
        return bundleContextMock;
    }

    /**
     * Getter.
     * 
     * @return the broken bundle context mock object.
     */
    public BundleContext getBrokenBundleContextMock() {
        if (brokenBundleContextMock == null) {
            brokenBundleContextMock = createBrokenBundleContextMock();
        }
        return brokenBundleContextMock;
    }

    /**
     * Creates a configuration mock object.
     * 
     * @return the created settings mock object.
     */
    public ConfigurationService getConfigurationServiceMock() {

        ConfigurationService configuration = EasyMock.createNiceMock(ConfigurationService.class);

        LoginConfiguration loginConfiguration = new LoginConfiguration();
        loginConfiguration.setAutoLogin(false);
        loginConfiguration.setAutoLoginPassword("test");

        EasyMock.expect(configuration.getConfiguration(BUNDLE_SYMBOLIC_NAME, LoginConfiguration.class))
            .andReturn(loginConfiguration).anyTimes();

        EasyMock.replay(configuration);

        return configuration;
    }

    /**
     * Creates a notification mock object.
     * 
     * @return the created settings mock object.
     */
    public DistributedNotificationService getNotificationServiceMock() {

        DistributedNotificationService notification = EasyMock.createNiceMock(DistributedNotificationService.class);
        EasyMock.replay(notification);

        return notification;
    }

    /**
     * Creates a settings mock object.
     * 
     * @return the created settings mock object.
     * @throws AuthenticationException if an error occurs.
     */
    public AuthenticationService getAuthenticationServiceMock() throws AuthenticationException {

        AuthenticationService authentication = EasyMock.createNiceMock(AuthenticationService.class);

        // LDAP
        EasyMock.expect(authentication.authenticate("a", "b")).
            andReturn(AuthenticationService.LDAPAuthenticationResult.AUTHENTICATED).anyTimes();
        EasyMock.expect(authentication.authenticate("a", "c")).
            andReturn(AuthenticationService.LDAPAuthenticationResult.PASSWORD_OR_USERNAME_INCORRECT).anyTimes();

        EasyMock.replay(authentication);

        return authentication;
    }

    /**
     * Creates a broken bundle context mock.
     * 
     * @return the broken context mock.
     */
    private BundleContext createBrokenBundleContextMock() {

        BundleContext bundleContext = EasyMock.createNiceMock(BundleContext.class);
        EasyMock.expect(bundleContext.getServiceReference(ConfigurationService.class.getName())).andReturn(null).anyTimes();
        EasyMock.replay(bundleContext);

        return bundleContext;
    }

    /**
     * Creates a bundle context mock.
     * 
     * @param bundleSymbolicName The symbolic name of the related bundle.
     * @return the bundle context mock.
     * @throws AuthenticationException Thrown on error.
     */
    private BundleContext createBundleContextMock(String bundleSymbolicName) throws AuthenticationException {

        Bundle bundle = EasyMock.createNiceMock(Bundle.class);
        EasyMock.expect(bundle.getSymbolicName()).andReturn(BUNDLE_SYMBOLIC_NAME).anyTimes();
        EasyMock.replay(bundle);

        BundleContext bundleContext = EasyMock.createNiceMock(BundleContext.class);
        EasyMock.expect(bundleContext.getBundle()).andReturn(bundle).anyTimes();
        EasyMock.replay(bundleContext);

        return bundleContext;
    }

}
