// SPDX-License-Identifier: GPL-2.0-or-later
// The quickest way to access, set or modify IPTC metadata.

#include <exiv2/exiv2.hpp>

#include <iostream>

int main(int argc, char* const argv[]) try {
  Exiv2::XmpParser::initialize();
  ::atexit(Exiv2::XmpParser::terminate);

  if (argc != 2) {
    std::cout << "Usage: " << argv[0] << " file\n";
    return EXIT_FAILURE;
  }
  std::string file(argv[1]);

  Exiv2::IptcData iptcData;

  iptcData["Iptc.Application2.Headline"] = "The headline I am";
  iptcData["Iptc.Application2.Keywords"] = "Yet another keyword";
  iptcData["Iptc.Application2.DateCreated"] = "2004-8-3";
  iptcData["Iptc.Application2.Urgency"] = static_cast<uint16_t>(1);
  iptcData["Iptc.Envelope.ModelVersion"] = 42;
  iptcData["Iptc.Envelope.TimeSent"] = "14:41:0-05:00";
  iptcData["Iptc.Application2.RasterizedCaption"] = "230 42 34 2 90 84 23 146";
  iptcData["Iptc.0x0009.0x0001"] = "Who am I?";

  Exiv2::StringValue value;
  value.read("very!");
  iptcData["Iptc.Application2.Urgency"] = value;

  std::cout << "Time sent: " << iptcData["Iptc.Envelope.TimeSent"] << "\n";

  // Open image file
  auto image = Exiv2::ImageFactory::open(file);
  // Set IPTC data and write it to the file
  image->setIptcData(iptcData);
  image->writeMetadata();

  return EXIT_SUCCESS;
} catch (Exiv2::Error& e) {
  std::cout << "Caught Exiv2 exception '" << e << "'\n";
  return EXIT_FAILURE;
}
