#include <cstdint>

#include <poppler-qt6.h>

#include <poppler-form.h>

#include <QtCore/QBuffer>

#include <QtGui/QImage>

static void dummy_error_function(const QString &message, const QVariant &closure)

{

    Q_UNUSED(message)

    Q_UNUSED(closure)

}

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)

{

    Poppler::setDebugErrorFunction(dummy_error_function, QVariant());

    QByteArray in_data = QByteArray::fromRawData((const char *)data, size);

    std::unique_ptr<Poppler::Document> doc = Poppler::Document::loadFromData(in_data);

    if (!doc || doc->isLocked()) {

        return 0;

    }

    for (int i = 0; i < doc->numPages(); i++) {

        std::unique_ptr<Poppler::Page> p = doc->page(i);

        if (!p) {

            continue;

        }

        QImage image = p->renderToImage(72.0, 72.0, -1, -1, -1, -1, Poppler::Page::Rotate0);

    }

    const std::vector<std::unique_ptr<Poppler::FormFieldSignature>> signatures = doc->signatures();

    for (const std::unique_ptr<Poppler::FormFieldSignature> &signature : signatures) {

        const Poppler::SignatureValidationInfo svi = signature->validateAsync(Poppler::FormFieldSignature::ValidateVerifyCertificate).first;

        signature->validateResult();

    }

    doc->outline();

    if (doc->numPages() > 0) {

        QList<int> pageList;

        for (int i = 0; i < doc->numPages(); i++) {

            pageList << (i + 1);

        }

        std::unique_ptr<Poppler::PSConverter> psConverter = doc->psConverter();

        QBuffer buffer;

        buffer.open(QIODevice::WriteOnly);

        psConverter->setOutputDevice(&buffer);

        psConverter->setPageList(pageList);

        psConverter->setPaperWidth(595);

        psConverter->setPaperHeight(842);

        psConverter->setTitle(doc->info(QStringLiteral("Title")));

        psConverter->convert();

    }

    return 0;

}