#include "Version.h"

/***************************************************
 * @SCIQLOP_CMAKE_GENERATION_WARNING@ *
 ***************************************************/

#include <QtCore/QDateTime>
#include <QtCore/QStringList>

namespace sciqlop {

const char *Version::VERSION_SUFFIX = "@SCIQLOP_VERSION_SUFFIX@";

/**
 * From the C99 standard:
 * __DATE__: The date of translation of the preprocessing translation unit:
 * a character string literal of the form "Mmm dd yyyy", where the names of
 * the months are the same as those generated by the asctime function, and
 * the first character of dd is a space character if the value is less than
 * 10. If the date of translation is not available, an
 * implementation-defined valid date shall be supplied.
 */
const char *Version::BUILD_DATE = __DATE__;
/**
 * From the C99 standard:
 * __TIME__: The time of translation of the preprocessing translation unit:
 * a character string literal of the form "hh:mm:ss" as in the time
 * generated by the asctime function. If the time of translation is not
 * available, an implementation-defined valid time shall be supplied.
 */
const char *Version::BUILD_TIME = __TIME__;

QDateTime Version::buildDateTime()
{
    static QDateTime buildDateTime;
    if (!buildDateTime.isValid()) {
        // Convert BUILD_DATE to a QDate
        // The __DATE__ macro return the month name with the asctime() function,
        // which doesn't support localization, the month names returned are
        // always the same. On the contrary, the "MMM" format on
        // QDate::fromString() is localized, so this method can't be used to
        // retrieve the month and we must manually do it instead.
        QString buildDateStr = QString(BUILD_DATE);
        QString buildMonthStr = buildDateStr.left(3);
        QString buildDayAndYearStr = buildDateStr.mid(4).trimmed();

        QDate buildDate = QDate::fromString(buildDayAndYearStr, "d yyyy");
        QStringList monthList = QStringList() << "Jan"
                                              << "Feb"
                                              << "Mar"
                                              << "Apr"
                                              << "May"
                                              << "Jun"
                                              << "Jul"
                                              << "Aug"
                                              << "Sep"
                                              << "Oct"
                                              << "Nov"
                                              << "Dec";
        for (int i = 0; i < monthList.size(); ++i) {
            if (buildMonthStr == monthList.at(i)) {
                buildDate.setDate(buildDate.year(), i + 1, buildDate.day());
                break;
            }
        }

        // Convert BUILD_TIME to a QTime
        QTime buildTime = QTime::fromString(BUILD_TIME, "hh:mm:ss");

        // Set the buildDateTime
        buildDateTime.setDate(buildDate);
        buildDateTime.setTime(buildTime);
    }

    return buildDateTime;
}

} // namespace sciqlop