/*
 *
 * Copyright (c) 2013 - 2017 Lijun Liao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 *
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * THE AUTHOR LIJUN LIAO. LIJUN LIAO DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the XiPKI software without
 * disclosing the source code of your own applications.
 *
 * For more information, please contact Lijun Liao at this
 * address: lijun.liao@gmail.com
 */

package org.xipki.pki.ca.server.mgmt.shell;

import java.util.Collection;
import java.util.Set;

import org.apache.karaf.shell.api.action.lifecycle.Reference;
import org.xipki.commons.common.util.CollectionUtil;
import org.xipki.commons.console.karaf.CmdFailure;
import org.xipki.commons.console.karaf.XipkiCommandSupport;
import org.xipki.commons.security.SecurityFactory;
import org.xipki.pki.ca.server.mgmt.api.CaManager;

/**
 * @author Lijun Liao
 * @since 2.0.0
 */

public abstract class CaCommandSupport extends XipkiCommandSupport {

    @Reference
    protected CaManager caManager;

    @Reference
    protected SecurityFactory securityFactory;

    protected static String getRealString(final String str) {
        return CaManager.NULL.equalsIgnoreCase(str) ? null : str;
    }

    protected static String toString(final Collection<? extends Object> col) {
        if (col == null) {
            return "null";
        }

        StringBuilder sb = new StringBuilder();
        sb.append("{");
        int size = col.size();

        int idx = 0;
        for (Object o : col) {
            sb.append(o);
            if (idx < size - 1) {
                sb.append(", ");
            }
            idx++;
        }
        sb.append("}");
        return sb.toString();
    }

    protected void output(final boolean successful, final String posPrefix, final String negPrefix,
            final String message) throws CmdFailure {
        if (successful) {
            println(posPrefix + " " + message);
        } else {
            throw new CmdFailure(negPrefix + " " + message);
        }
    }

    protected void printCaNams(StringBuilder sb, Set<String> caNames, String prefix) {
        if (caNames.isEmpty()) {
            sb.append(prefix).append("-\n");
            return;
        }

        for (String caName : caNames) {
            Set<String> aliases = caManager.getAliasesForCa(caName);
            if (CollectionUtil.isEmpty(aliases)) {
                sb.append(prefix).append(caName);
            } else {
                sb.append(prefix).append(caName + " (aliases " + aliases + ")");
            }
            sb.append("\n");
        }
    }

}