/*
 * Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.wso2.identity.scenarios.commons.clients.login;

import org.apache.axis2.AxisFault;
import org.apache.axis2.client.Stub;
import org.apache.axis2.context.ServiceContext;
import org.apache.axis2.transport.http.HTTPConstants;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.authenticator.stub.AuthenticationAdminStub;
import org.wso2.carbon.authenticator.stub.LoginAuthenticationExceptionException;
import org.wso2.carbon.authenticator.stub.LogoutAuthenticationExceptionException;

import java.rmi.RemoteException;

public class AuthenticatorClient {
    private static final Log log = LogFactory.getLog(AuthenticatorClient.class);
    private AuthenticationAdminStub authenticationAdminStub;

    public AuthenticatorClient(String backendUrl) throws AxisFault {
        String serviceName = "AuthenticationAdmin";
        String endPoint = backendUrl + serviceName;
        if (log.isDebugEnabled()) {
            log.debug("EndPoint" + endPoint);
        }
        try {
            authenticationAdminStub = new AuthenticationAdminStub(endPoint);
        } catch (AxisFault axisFault) {
            log.info("authenticationAdminStub initialization fails");
            throw new AxisFault("authenticationAdminStub initialization fails");
        }
    }

    public Stub getServiceStub() {
        return this.authenticationAdminStub;
    }

    public String login(String userName, String password, String host)
            throws LoginAuthenticationExceptionException, RemoteException {
        Boolean loginStatus;
        ServiceContext serviceContext;
        String sessionCookie;
        loginStatus = authenticationAdminStub.login(userName, password, host);
        if (!loginStatus) {
            throw new LoginAuthenticationExceptionException("Login Unsuccessful. Return false as a login status by Server");
        }
        log.info("Login Successful");
        serviceContext = authenticationAdminStub._getServiceClient().getLastOperationContext().getServiceContext();
        sessionCookie = (String) serviceContext.getProperty(HTTPConstants.COOKIE_STRING);
        if (log.isDebugEnabled()) {
            log.debug("SessionCookie :" + sessionCookie);
        }
        return sessionCookie;
    }

    public Boolean unsuccessfulLogin(String userName, String password, String backEndURL)
            throws LoginAuthenticationExceptionException, RemoteException {
        return authenticationAdminStub.login(userName, password, backEndURL);
    }

    public void logOut() throws LogoutAuthenticationExceptionException, RemoteException {
        authenticationAdminStub.logout();
        log.info("log out");
    }

    public Stub getAuthenticationAdminStub() {
        return authenticationAdminStub;
    }
}
