#include <QtTest/QTest>
#include <QtCore/QTimeZone>

Q_DECLARE_METATYPE(QDate)
Q_DECLARE_METATYPE(QTime)

#include <poppler-qt6.h>

class TestDateConv : public QObject
{
    Q_OBJECT
public:
    explicit TestDateConv(QObject *parent = nullptr) : QObject(parent) { }

private Q_SLOTS:
    static void initTestCase();
    static void checkDates_data();
    static void checkDates();
    static void checkInvalidDates_data();
    static void checkInvalidDates();
};

void TestDateConv::initTestCase()
{
    qRegisterMetaType<QDate>("QDate");
    qRegisterMetaType<QTime>("QTime");
}

void TestDateConv::checkDates_data()
{
    QTest::addColumn<QByteArray>("input");
    QTest::addColumn<QDate>("day");
    QTest::addColumn<QTime>("time");

    // This is a typical case - all data provided
    QTest::newRow("D:20040101121110") << QByteArray("D:20040101121110Z") << QDate(2004, 1, 1) << QTime(12, 11, 10);

    // The D: is strongly recommended, but optional
    QTest::newRow("20040101121110") << QByteArray("20040101121110Z") << QDate(2004, 1, 1) << QTime(12, 11, 10);

    // Only the year is actually required
    QTest::newRow("D:2006") << QByteArray("D:2006") << QDate(2006, 1, 1) << QTime(0, 0, 0);

    QTest::newRow("D:200602") << QByteArray("D:200602") << QDate(2006, 2, 1) << QTime(0, 0, 0);

    QTest::newRow("D:20060304") << QByteArray("D:20060304") << QDate(2006, 3, 4) << QTime(0, 0, 0);

    QTest::newRow("D:2006030405") << QByteArray("D:2006030405") << QDate(2006, 3, 4) << QTime(5, 0, 0);

    QTest::newRow("D:200603040512") << QByteArray("D:200603040512") << QDate(2006, 3, 4) << QTime(5, 12, 0);

    // If the timezone isn't specified, I assume UTC
    QTest::newRow("D:20060304051226") << QByteArray("D:20060304051226") << QDate(2006, 3, 4) << QTime(5, 12, 26);

    // Check for real timezone conversions
    QTest::newRow("D:20030131115258-04'00'") << QByteArray("D:20030131115258-04'00'") << QDate(2003, 1, 31) << QTime(15, 52, 58);

    QTest::newRow("D:20030131115258+05'00'") << QByteArray("D:20030131115258+05'00'") << QDate(2003, 1, 31) << QTime(6, 52, 58);

    // There are places that have non-hour offsets
    // Yep, that means you Adelaide.
    QTest::newRow("D:20030131115258+08'30'") << QByteArray("D:20030131115258+08'30'") << QDate(2003, 1, 31) << QTime(3, 22, 58);

    QTest::newRow("D:20030131115258-08'30'") << QByteArray("D:20030131115258-08'30'") << QDate(2003, 1, 31) << QTime(20, 22, 58);
}

void TestDateConv::checkDates()
{
    QFETCH(QByteArray, input);
    QFETCH(QDate, day);
    QFETCH(QTime, time);

    QCOMPARE(Poppler::convertDate(input.constData()), QDateTime(day, time, QTimeZone::utc()));
}

void TestDateConv::checkInvalidDates_data()
{
    QTest::addColumn<QByteArray>("input");

    // Null data
    QTest::newRow("Null data") << QByteArray();

    // Empty data
    QTest::newRow("Empty data") << QByteArray("");

    // Empty data
    QTest::newRow("One character") << QByteArray("D");

    // Empty data
    QTest::newRow("'D:'") << QByteArray("D:");

    // Empty data
    QTest::newRow("Not a date") << QByteArray("D:IAmNotAValidDate");
}

void TestDateConv::checkInvalidDates()
{
    QFETCH(QByteArray, input);

    QCOMPARE(Poppler::convertDate(input.constData()), QDateTime());
}

QTEST_GUILESS_MAIN(TestDateConv)

#include "check_dateConversion.moc"
