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/*
 * Copyright (C) 2008-2020, 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 ru.sape;

import com.juick.www.ad.models.Site;
import org.apache.commons.lang3.StringUtils;

import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

public class SapePageLinks {

    private final boolean showCode;
    private final String linkDelimiter;
    private final List<String> pageLinks;

    public SapePageLinks(Site site, String sapeUser, URI request, String sapeCookie) {
        String req = StringUtils.isNotEmpty(request.getQuery()) ? request.getPath() + "?" + request.getQuery()
                : request.getPath();

        linkDelimiter = site.delimiter();

        this.showCode = sapeUser.equals(sapeCookie);

        if (showCode) {
            pageLinks = Collections.singletonList(site.code());
        } else {
            pageLinks = site.pages().stream().filter(page -> page.uri().equals(req))
                    .flatMap(page -> page.links().stream()).toList();
        }
    }


    public String render() {
        StringBuilder s = new StringBuilder();
        s.append(String.join(linkDelimiter, pageLinks));

        if (showCode) {
            s.insert(0, "<sape_noindex>");
            s.append("</sape_noindex>");
        }

        return s.toString();
    }
}