File indexing completed on 2024-06-16 04:54:23

 /*
     SPDX-FileCopyrightText: 2019 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include <config-kitinerary.h>
 #include <kitinerary_version.h>
 
 #include <KItinerary/CalendarHandler>
 #include <KItinerary/ExtractorCapabilities>
 #include <KItinerary/ExtractorEngine>
 #include <KItinerary/ExtractorPostprocessor>
 #include <KItinerary/ExtractorRepository>
 #include <KItinerary/ExtractorValidator>
 #include <KItinerary/JsonLdDocument>
 #include <KItinerary/MergeUtil>
 #include <KItinerary/Reservation>
 #include <KItinerary/ScriptExtractor>
 
 #include <KCalendarCore/Event>
 #include <KCalendarCore/ICalFormat>
 #include <KCalendarCore/MemoryCalendar>
 
 #include <QCommandLineParser>
 #include <QCoreApplication>
 #include <QDateTime>
 #include <QDebug>
 #include <QDir>
 #include <QFile>
 #include <QJsonArray>
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QObject>
 
 #include <iostream>
 
 using namespace KItinerary;
 
 static QList<QList<QVariant>>
 batchReservations(const QList<QVariant> &reservations) {
   using namespace KItinerary;
 
   QList<QList<QVariant>> batches;
   QList<QVariant> batch;
 
   for (const auto &res : reservations) {
     if (batch.isEmpty()) {
       batch.push_back(res);
       continue;
     }
 
     if (JsonLd::canConvert<Reservation>(res) &&
         JsonLd::canConvert<Reservation>(batch.at(0))) {
       const auto trip1 = JsonLd::convert<Reservation>(res).reservationFor();
       const auto trip2 =
           JsonLd::convert<Reservation>(batch.at(0)).reservationFor();
       if (KItinerary::MergeUtil::isSame(trip1, trip2)) {
         batch.push_back(res);
         continue;
       }
     }
 
     batches.push_back(batch);
     batch.clear();
     batch.push_back(res);
   }
 
   if (!batch.isEmpty()) {
     batches.push_back(batch);
   }
   return batches;
 }
 
 static void printCapabilities()
 {
     std::cout << qPrintable(ExtractorCapabilities::capabilitiesString());
 }
 
 static void printExtractors()
 {
     ExtractorRepository repo;
     for (const auto &ext : repo.extractors()) {
         std::cout << qPrintable(ext->name());
         if (auto scriptExt = dynamic_cast<const ScriptExtractor*>(ext.get())) {
             std::cout << " (" << qPrintable(scriptExt->mimeType()) << ", "
                       << qPrintable(scriptExt->scriptFileName()) << ":"
                       << qPrintable(scriptExt->scriptFunction()) << ")";
         }
         std::cout << std::endl;
     }
 }
 
 int main(int argc, char** argv)
 {
     QCoreApplication::setApplicationName(QStringLiteral("kitinerary-extractor"));
     QCoreApplication::setApplicationVersion(QStringLiteral(KITINERARY_VERSION_STRING));
     QCoreApplication::setOrganizationDomain(QStringLiteral("kde.org"));
     QCoreApplication::setOrganizationName(QStringLiteral("KDE"));
     QCoreApplication app(argc, argv);
 
 #ifdef KITINERARY_STANDALONE_CLI_EXTRACTOR
     // set additional data file search path relative to the current binary location
     // NOTE: QCoreApplication::applicationDirPath is only valid once QCoreApplication has been created
     auto xdgDataDirs = qgetenv("XDG_DATA_DIRS");
     if (!xdgDataDirs.isEmpty()) {
         xdgDataDirs += QDir::listSeparator().toLatin1();
     }
     xdgDataDirs += QString(QCoreApplication::applicationDirPath() +
                            QDir::separator() + QLatin1StringView("..") +
                            QDir::separator() + QLatin1String("share"))
                        .toUtf8();
     qputenv("XDG_DATA_DIRS", xdgDataDirs);
 #endif
 
     QCommandLineParser parser;
     parser.setApplicationDescription(QStringLiteral("Command line itinerary extractor."));
     parser.addHelpOption();
     parser.addVersionOption();
     QCommandLineOption capOpt({QStringLiteral("capabilities")}, QStringLiteral("Show available extraction capabilities."));
     parser.addOption(capOpt);
     QCommandLineOption listExtOpt({QStringLiteral("list-extractors")}, QStringLiteral("List all available extractors."));
     parser.addOption(listExtOpt);
 
     QCommandLineOption ctxOpt({QStringLiteral("c"), QStringLiteral("context-date")}, QStringLiteral("ISO date/time for when this data has been received."), QStringLiteral("date"));
     parser.addOption(ctxOpt);
     QCommandLineOption typeOpt({QStringLiteral("t"), QStringLiteral("type")}, QStringLiteral("Deprecated, no longer needed and ignored."), QStringLiteral("type"));
     parser.addOption(typeOpt);
     QCommandLineOption extOpt({QStringLiteral("e"), QStringLiteral("extractors")}, QStringLiteral("Additional extractors to apply."), QStringLiteral("extractors"));
     parser.addOption(extOpt);
     QCommandLineOption pathsOpt({QStringLiteral("additional-search-path")}, QStringLiteral("Additional search path for extractors."), QStringLiteral("search-path"));
     parser.addOption(pathsOpt);
     QCommandLineOption formatOpt({QStringLiteral("o"), QStringLiteral("output")}, QStringLiteral("Output format [JsonLd, iCal]. Default: JsonLd"), QStringLiteral("format"));
     parser.addOption(formatOpt);
     QCommandLineOption noValidationOpt({QStringLiteral("no-validation")}, QStringLiteral("Disable result validation."));
     parser.addOption(noValidationOpt);
 
     parser.addPositionalArgument(QStringLiteral("input"), QStringLiteral("File to extract data from, omit for using stdin."));
     parser.process(app);
 
     ExtractorRepository repo;
     if (parser.isSet(pathsOpt)) {
         repo.setAdditionalSearchPaths(parser.values(pathsOpt));
         repo.reload();
     }
 
     if (parser.isSet(capOpt)) {
         printCapabilities();
         return 0;
     }
     if (parser.isSet(listExtOpt)) {
         printExtractors();
         return 0;
     }
 
     ExtractorEngine engine;
     engine.setUseSeparateProcess(false); // we are the external extractor
     ExtractorPostprocessor postproc;
 
     auto contextDt = QDateTime::fromString(parser.value(ctxOpt), Qt::ISODate);
     if (!contextDt.isValid()) {
         contextDt = QDateTime::currentDateTime();
     }
     postproc.setContextDate(contextDt);
 
     const auto files = parser.positionalArguments().isEmpty() ? QStringList(QString()) : parser.positionalArguments();
     for (const auto &arg : files) {
         QFile f;
         if (!arg.isEmpty()) {
             f.setFileName(arg);
             if (!f.open(QFile::ReadOnly)) {
                 std::cerr << qPrintable(f.errorString()) << std::endl;
                 return 1;
             }
         } else {
             f.open(stdin, QFile::ReadOnly);
         }
 
         auto fileName = f.fileName();
 
         engine.clear();
         engine.setContextDate(contextDt);
 
         if (!parser.value(extOpt).isEmpty()) {
             const auto extNames = parser.value(extOpt).split(QLatin1Char(';'),
                                                              Qt::SkipEmptyParts);
             std::vector<const AbstractExtractor*> exts;
             exts.reserve(extNames.size());
             for (const auto &name : extNames) {
                 const auto ext = repo.extractorByName(name);
                 exts.push_back(ext);
             }
             engine.setAdditionalExtractors(std::move(exts));
         }
 
         engine.setData(f.readAll(), fileName);
         const auto result = JsonLdDocument::fromJson(engine.extract());
         postproc.process(result);
     }
 
     auto result = postproc.result();
     if (!parser.isSet(noValidationOpt)) {
         ExtractorValidator validator;
         result.erase(std::remove_if(result.begin(), result.end(), [&validator](const auto &elem) {
             return !validator.isValidElement(elem);
         }), result.end());
     }
 
     if (parser.value(formatOpt).compare(QLatin1StringView("ical"),
                                         Qt::CaseInsensitive) == 0) {
       const auto batches = batchReservations(result);
       KCalendarCore::Calendar::Ptr cal(
           new KCalendarCore::MemoryCalendar(QTimeZone::systemTimeZone()));
       for (const auto &batch : batches) {
         KCalendarCore::Event::Ptr event(new KCalendarCore::Event);
         CalendarHandler::fillEvent(batch, event);
         cal->addEvent(event);
       }
       KCalendarCore::ICalFormat format;
       std::cout << qPrintable(format.toString(cal));
     } else {
       const auto postProcResult = JsonLdDocument::toJson(result);
       std::cout << QJsonDocument(postProcResult).toJson().constData()
                 << std::endl;
     }
 }