#include "layout/KeyGeometry.h"

#include <QTest>

using namespace Qt::StringLiterals;

namespace {

KeyDef key(qreal width = 1.0, KeyType type = KeyType::Character)
{
    KeyDef k;
    k.type = type;
    k.label = u"x"_s;
    k.width = width;
    return k;
}

} // namespace

class TestKeyGeometry : public QObject
{
    Q_OBJECT

private Q_SLOTS:
    void fillsWidthAndHeight()
    {
        const Layer layer{u"l"_s, {{key(), key()}, {key(2)}}};
        const KeyboardMetrics metrics{.padding = 10, .gap = 10};
        const auto rects = computeKeyRects(layer, {210, 110}, metrics);

        QCOMPARE(rects.size(), 3);
        QCOMPARE(rects[0], QRectF(10, 10, 90, 40));
        QCOMPARE(rects[1], QRectF(110, 10, 90, 40));
        QCOMPARE(rects[2], QRectF(10, 60, 190, 40)); // a 2-unit key spans the gap
    }

    void spacersShiftFollowingKeys()
    {
        const Layer layer{u"l"_s, {{key(), key(), key()}, {key(0.5, KeyType::Spacer), key(), key(1.5)}}};
        const auto rects = computeKeyRects(layer, {300, 100}, {.padding = 0, .gap = 0});
        QCOMPARE(rects[4].left(), 50.0);
        QCOMPARE(rects[5].right(), 300.0);
    }

    void shorterRowsAreCentered()
    {
        const Layer layer{u"l"_s, {{key(), key(), key(), key()}, {key(), key()}}};
        const auto rects = computeKeyRects(layer, {400, 100}, {.padding = 0, .gap = 0});
        QCOMPARE(rects[4].left(), 100.0);
        QCOMPARE(rects[5].right(), 300.0);
    }
};

QTEST_GUILESS_MAIN(TestKeyGeometry)
#include "tst_keygeometry.moc"