datetime.cpp

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * xoreos 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#include "src/common/datetime.h"
#include "src/common/error.h"

using boost::posix_time::ptime;
using boost::posix_time::second_clock;
using boost::posix_time::from_iso_string;
using boost::posix_time::not_a_date_time;

namespace Common {

DateTime::DateTime(TimeZone zone) : ptime(not_a_date_time) {
    switch (zone) {
        case kUTC:
            ptime::operator=(second_clock::universal_time());
            break;

        case kLocal:
            ptime::operator=(second_clock::local_time());
            break;

    default:
        throw Exception("Invalid time zone specifier (%u)", (uint) zone);
    }
}

DateTime::DateTime(const UString &value) : ptime(not_a_date_time) {
    try {
        ptime::operator=(from_iso_string(value.c_str()));
    } catch (std::exception &e) {
        Exception se(e);

        se.add("Failed to create DateTime from \"%s\"", value.c_str());
        throw se;
    }
}

UString DateTime::formatDateISO(uint32 sep) const {
    const UString sepStr(sep, sep ? 1 : 0);

    return UString::format("%04d%s%02d%s%02d",
                           (int) date().year() , sepStr.c_str(),
                           (int) date().month(), sepStr.c_str(),
                           (int) date().day());
}

UString DateTime::formatTimeISO(uint32 sep) const {
    const UString sepStr(sep, sep ? 1 : 0);

    return UString::format("%02d%s%02d%s%02d",
                           (int) time_of_day().hours()  , sepStr.c_str(),
                           (int) time_of_day().minutes(), sepStr.c_str(),
                           (int) time_of_day().seconds());
}

UString DateTime::formatDateTimeISO(uint32 sep, uint32 sepDate, uint32 sepTime) const {
    const UString sepStr(sep, sep ? 1 : 0);

    return UString::format("%s%s%s", formatDateISO(sepDate).c_str(), sepStr.c_str(),
                                     formatTimeISO(sepTime).c_str());
}

} // End of namespace Common