#include <QApplication>
#include <QFile>
#include <QPageSize>
#include <QPrinter>
#include <QTextDocument>
#include <QTextStream>

#include <cstdio>

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);

    if (argc != 3) {
        std::fprintf(stderr, "Usage: %s <input.md> <output.pdf>\n", argv[0]);
        return 1;
    }

    const QString inputPath = QString::fromLocal8Bit(argv[1]);
    const QString outputPath = QString::fromLocal8Bit(argv[2]);

    QFile input(inputPath);
    if (!input.open(QIODevice::ReadOnly | QIODevice::Text)) {
        std::fprintf(stderr, "Could not open %s\n", qPrintable(inputPath));
        return 1;
    }

    QTextStream stream(&input);
    const QString markdown = stream.readAll();

    QTextDocument document;
    document.setMarkdown(markdown);

    QPrinter printer(QPrinter::HighResolution);
    printer.setOutputFormat(QPrinter::PdfFormat);
    printer.setPageSize(QPageSize(QPageSize::Letter));
    printer.setPageMargins(QMarginsF(50, 50, 50, 50), QPageLayout::Point);
    printer.setOutputFileName(outputPath);

    document.print(&printer);

    std::printf("Wrote %s\n", qPrintable(outputPath));
    return 0;
}