/**
 * =============================================================================
 *
 * ORCID (R) Open Source
 * http://orcid.org
 *
 * Copyright (c) 2012-2014 ORCID, Inc.
 * Licensed under an MIT-Style License (MIT)
 * http://orcid.org/open-source-license
 *
 * This copyright and license information (including a link to the full license)
 * shall be included in its entirety in all copies or substantial portion of
 * the software.
 *
 * =============================================================================
 */
package org.orcid.core.manager.impl;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.orcid.core.manager.SlackManager;
import org.orcid.core.utils.JsonUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;

/**
 * 
 * @author Will Simpson
 *
 */
public class SlackManagerImpl implements SlackManager {

    @Value("${org.orcid.core.slack.webhookUrl:}")
    private String webhookUrl;

    @Value("${org.orcid.core.slack.channel}")
    private String channel;

    private Client client = Client.create();

    private static final Logger LOGGER = LoggerFactory.getLogger(SlackManagerImpl.class);

    @Override
    public void sendSystemAlert(String message) {
        if (StringUtils.isNotBlank(webhookUrl)) {
            Map<String, String> bodyMap = new HashMap<>();
            bodyMap.put("text", message);
            bodyMap.put("channel", channel);
            String bodyJson = JsonUtils.convertToJsonString(bodyMap);
            WebResource resource = client.resource(webhookUrl);
            ClientResponse response = resource.entity(bodyJson).post(ClientResponse.class);
            int status = response.getStatus();
            if (status != 200) {
                LOGGER.warn("Unable to send message to Slack, status={}, error={}, message={}", new Object[] { status, response.getEntity(String.class), message });
            }
        }
    }

}