// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2013 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.certsrv.client;

import java.net.URI;
import java.net.URISyntaxException;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import com.netscape.certsrv.account.AccountClient;
import com.netscape.certsrv.account.AccountInfo;


/**
 * @author Endi S. Dewata
 */
public class SubsystemClient extends Client {

    public AccountClient accountClient;

    public SubsystemClient(PKIClient client, String name) throws URISyntaxException {
        // subsystem name should match the client name
        super(client, name, name);

        accountClient = new AccountClient(client, name);
        addClient(accountClient);
    }

    /**
     * Log in to the subsystem.
     */
    public AccountInfo login() {
        return accountClient.login();
    }

    public boolean exists() throws Exception {

        ClientConfig config = client.getConfig();
        URI serverURI = config.getServerURI();

        URI subsystemURI = new URI(
                serverURI.getScheme(),
                null,
                serverURI.getHost(),
                serverURI.getPort(),
                "/" + name,
                null,
                null);

        DefaultHttpClient client = new DefaultHttpClient();
        HttpGet method = new HttpGet(subsystemURI);
        try {
            HttpResponse response = client.execute(method);
            int code = response.getStatusLine().getStatusCode();

            if (code == 200) {
                return true;

            } else if (code == 404) {
                return false;

            } else {
                throw new Exception("Error: " + response.getStatusLine());
            }

        } finally {
            method.releaseConnection();
        }
    }

    /**
     * Log out from the subsystem.
     */
    public void logout() {
        accountClient.logout();
    }
}