/*
 * Copyright (C) 2008-2017, Juick
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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/>.
 */

package com.juick.api;

import com.juick.Message;
import com.juick.Tag;
import com.juick.service.MessagesService;
import com.juick.util.MessageUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.social.facebook.api.Facebook;
import org.springframework.social.facebook.api.PagePostData;
import org.springframework.social.facebook.api.impl.FacebookTemplate;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import javax.inject.Inject;
import java.util.stream.Collectors;

@Component
public class TopManager {
    private static Logger logger = LoggerFactory.getLogger(TopManager.class);
    @Inject
    private MessagesService messagesService;
    @Value("${facebook_appid}")
    private String FACEBOOK_APPID;
    @Value("${facebook_secret}")
    private String FACEBOOK_SECRET;
    @Value("${facebook_page_id}")
    private String facebookPageId;

    private Facebook facebookTemplate;

    @PostConstruct
    public void init() {
        facebookTemplate = new FacebookTemplate(String.format("%s|%s", FACEBOOK_APPID, FACEBOOK_SECRET));
    }

    @Scheduled(fixedRate = 3600000)
    public void updateTop() {
        messagesService.getPopularCandidates().forEach(m -> {
            logger.info("added {} to popular", m);
            messagesService.setMessagePopular(m, 1);
            Message jmsg = messagesService.getMessage(m);
            String status = StringUtils.defaultString(jmsg.getText());
            PagePostData post = new PagePostData(facebookPageId)
                    .message(status).link( "https://juick.com/" + jmsg.getMid(), null,
                    null, null, null)
                    .tags(jmsg.getTags().stream().map(Tag::getName).toArray(String[]::new));
            facebookTemplate.pageOperations().post(post);
        });
    }
}