/*
 * This file is part of LibrePlan
 *
 * Copyright (C) 2012 Igalia, S.L.
 *
 * 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 org.libreplan.web.common.components.finders;

import org.apache.commons.lang3.StringUtils;
import org.libreplan.business.users.daos.IUserDAO;
import org.libreplan.business.users.entities.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import org.zkoss.lang.Strings;
import org.zkoss.zul.Bandbox;
import org.zkoss.zul.Listcell;
import org.zkoss.zul.ListitemRenderer;

import java.util.List;

/**
 * This is a finder for {@link User}s in a {@link Bandbox}
 *
 * @author Manuel Rego Casasnovas <rego@igalia.com>
 */
@Repository
public class UserBandboxFinder extends BandboxFinder implements IBandboxFinder {

    @Autowired
    private IUserDAO userDAO;

    private final String headers[] = { _("Username"), _("Full name") };

    private final ListitemRenderer usersRenderer = (item, data, i) -> {
        User user = (User) data;

        item.setValue(data);

        item.appendChild(new Listcell(user.getLoginName()));
        item.appendChild(new Listcell(user.getFullName()));
    };

    /**
     * Forces to mark the string as needing translation.
     */
    private static String _(String string) {
        return string;
    }

    @Override
    @Transactional(readOnly = true)
    public List<User> getAll() {
        return userDAO.list(User.class);
    }

    @Override
    public boolean entryMatchesText(Object obj, String text) {
        final User user = (User) obj;
        text = StringUtils.trim(text.toLowerCase());

        return checkContainsText(user.getLoginName(), text) ||
                checkContainsText(user.getFirstName(), text) ||
                checkContainsText(user.getLastName(), text);
    }

    private boolean checkContainsText(String original, String text) {
        return original.toLowerCase().contains(text);
    }

    @Override
    public String objectToString(Object obj) {
        User user = (User) obj;

        String fullName = user.getFullName();
        if (Strings.isBlank(fullName)) {
            return user.getLoginName();
        }

        return user.getLoginName() + " (" + fullName + ")";
    }

    @Override
    public String[] getHeaders() {
        return headers.clone();
    }

    @Override
    public ListitemRenderer getItemRenderer() {
        return usersRenderer;
    }
}