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 * Licensed to the Apache Software Foundation (ASF) under one   *
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 * distributed with this work for additional information        *
 * regarding copyright ownership.  The ASF licenses this file   *
 * to you 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   *
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 *   http://www.apache.org/licenses/LICENSE-2.0                 *
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 * 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.apache.james.jmap.draft;

import javax.inject.Inject;

import org.apache.james.jmap.draft.crypto.SecurityKeyLoader;
import org.apache.james.lifecycle.api.StartUpCheck;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class JMAPConfigurationStartUpCheck implements StartUpCheck {
    private static final Logger LOGGER = LoggerFactory.getLogger(JMAPConfigurationStartUpCheck.class);
    public static final String CHECK_NAME = "JMAPConfigurationStartUpCheck";

    private final SecurityKeyLoader securityKeyLoader;
    private final JMAPDraftConfiguration jmapConfiguration;

    @Inject
    JMAPConfigurationStartUpCheck(SecurityKeyLoader securityKeyLoader, JMAPDraftConfiguration jmapConfiguration) {
        this.securityKeyLoader = securityKeyLoader;
        this.jmapConfiguration = jmapConfiguration;
    }

    @Override
    public CheckResult check() {
        if (jmapConfiguration.isEnabled()) {
            return checkSecurityKey();
        }

        return CheckResult.builder()
            .checkName(checkName())
            .resultType(ResultType.GOOD)
            .build();
    }

    private CheckResult checkSecurityKey() {
        try {
            securityKeyLoader.load();
            return CheckResult.builder()
                .checkName(checkName())
                .resultType(ResultType.GOOD)
                .build();
        } catch (Exception e) {
            LOGGER.error("Cannot load security key from jmap configuration", e);
            return CheckResult.builder()
                .checkName(checkName())
                .resultType(ResultType.BAD)
                .description(e.getMessage())
                .build();
        }
    }

    @Override
    public String checkName() {
        return CHECK_NAME;
    }
}
