263 lines
8.0 KiB
C++
263 lines
8.0 KiB
C++
/*
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* Sailfin: a Jellyfin client written using Qt
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* Copyright (C) 2021 Chris Josten and the Sailfin Contributors.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "JellyfinQt/support/jsonconvimpl.h"
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#include "JellyfinQt/support/parseexception.h"
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#include <QDebug>
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namespace Jellyfin {
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namespace Support {
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QString uuidToString(const QUuid &source) {
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QString str = source.toString();
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// Convert {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} (length: 38)
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// to xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (lenght: 32)
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return QString(str.mid(1, 8) + str.mid(10, 4) + str.mid(15, 4) + str.mid(20, 4) + str.mid(25 + 12));
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}
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QUuid stringToUuid(const QString &source) {
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if (source.size() != 32) throw ParseException("Error while trying to parse JSON value as QUid: invalid length");
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// Convert xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (length: 32)
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// to {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} (length: 38)
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QString qtParseableString;
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qtParseableString.reserve(38);
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qtParseableString += QStringLiteral("{")
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+ source.mid(0, 8)
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+ QStringLiteral("-")
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+ source.mid(8, 4)
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+ QStringLiteral("-")
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+ source.mid(12, 4)
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+ QStringLiteral("-")
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+ source.mid(16, 4)
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+ QStringLiteral("-")
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+ source.mid(20, 12)
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+ QStringLiteral("}");
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return QUuid(qtParseableString);
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}
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// Trivial converters for built-in classes and simple types
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// int
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template <>
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int fromJsonValue<int>(const QJsonValue &source, convertType<int>) {
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if (!source.isDouble()) throw ParseException("Error while trying to parse JSON value as integer: not an integer");
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return source.toInt();
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}
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template <>
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QJsonValue toJsonValue<int>(const int &source, convertType<int>) {
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return QJsonValue(source);
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}
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// "long"
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template <>
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qint64 fromJsonValue<qint64>(const QJsonValue &source, convertType<qint64>) {
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if (!source.isDouble()) throw ParseException("Error while trying to parse JSON value as integer: not an integer");
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return static_cast<qint64>(source.toDouble());
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}
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template <>
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QJsonValue toJsonValue<qint64>(const qint64 &source, convertType<qint64>) {
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return QJsonValue(static_cast<qint64>(source));
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}
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// bool
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template <>
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bool fromJsonValue<bool>(const QJsonValue &source, convertType<bool>) {
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if (!source.isBool()) throw ParseException("Error while trying to parse JSON value as boolean: not a boolean");
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return source.toBool();
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}
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template <>
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QJsonValue toJsonValue<bool>(const bool &source, convertType<bool>) {
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return QJsonValue(source);
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}
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// QString
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template <>
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QString fromJsonValue<QString>(const QJsonValue &source, convertType<QString>) {
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if (source.isNull()) {
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return QString();
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}
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if (!source.isString()) {
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throw ParseException(QStringLiteral("Error while trying to parse JSON value %1 as string: not a string").arg(source.type()));
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}
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return source.toString();
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}
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template <>
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QJsonValue toJsonValue<QString>(const QString &source, convertType<QString>) {
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return QJsonValue(source);
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}
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// QStringList
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template <>
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QStringList fromJsonValue<QStringList>(const QJsonValue &source, convertType<QStringList>) {
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switch(source.type()) {
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case QJsonValue::Array: {
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QJsonArray arr = source.toArray();
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QStringList result;
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result.reserve(arr.size());
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for(int i = 0; i < arr.size(); i++) {
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result.append(fromJsonValue<QString>(arr.at(i)));
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}
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return result;
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}
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case QJsonValue::Null:
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return QStringList();
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default:
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throw ParseException(QStringLiteral("Error while trying to parse JSON value %1 as stringlist: not a list of strings").arg(source.type()));
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}
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}
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template <>
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QJsonValue toJsonValue<QStringList>(const QStringList &source, convertType<QStringList>) {
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QJsonArray result;
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for (int i = 0; i < source.size(); i++) {
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result.append(source[i]);
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}
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return result;
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}
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// QJsonObject
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template <>
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QJsonObject fromJsonValue<QJsonObject>(const QJsonValue &source, convertType<QJsonObject>) {
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switch(source.type()) {
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case QJsonValue::Null:
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return QJsonObject();
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case QJsonValue::Object:
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return source.toObject();
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default:
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throw ParseException("Error parsing JSON value as object: not an object");
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}
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}
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template <>
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QJsonValue toJsonValue<QJsonObject>(const QJsonObject &source, convertType<QJsonObject>) {
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return QJsonValue(source);
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}
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// Double
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template <>
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double fromJsonValue<double>(const QJsonValue &source, convertType<double>) {
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if (!source.isDouble()) throw ParseException("Error parsing JSON value as double: not a double");
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return source.toDouble();
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}
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template <>
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QJsonValue toJsonValue<double>(const double &source, convertType<double>) {
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return QJsonValue(source);
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}
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// Float
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template <>
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float fromJsonValue<float>(const QJsonValue &source, convertType<float>) {
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if (!source.isDouble()) throw ParseException("Error parsing JSON value as float: not a double");
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return static_cast<float>(source.toDouble());
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}
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template <>
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QJsonValue toJsonValue<float>(const float &source, convertType<float>) {
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return QJsonValue(static_cast<double>(source));
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}
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// QDateTime
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template <>
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QDateTime fromJsonValue<QDateTime>(const QJsonValue &source, convertType<QDateTime>) {
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switch (source.type()) {
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case QJsonValue::Null:
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return QDateTime();
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case QJsonValue::String:
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// 2005-02-21T00:00:00.0000000Z
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return QDateTime::fromString(source.toString(), Qt::ISODate);
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default:
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throw ParseException("Error while trying to parse JSON value as DateTime: not a string");
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}
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}
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template <>
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QJsonValue toJsonValue<QDateTime>(const QDateTime &source, convertType<QDateTime>) {
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return QJsonValue(source.toString(Qt::ISODate));
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}
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// QVariant
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template <>
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QVariant fromJsonValue<QVariant>(const QJsonValue &source, convertType<QVariant>) {
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return source.toVariant();
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}
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template<>
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QJsonValue toJsonValue<QVariant>(const QVariant &source, convertType<QVariant>) {
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return QJsonValue::fromVariant(source);
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}
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// QUuid
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template <>
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QUuid fromJsonValue<QUuid>(const QJsonValue &source, convertType<QUuid>) {
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if (!source.isString()) {
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qCritical() << "JSON Value " << source << "is not a string";
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throw ParseException(QStringLiteral("Error while trying to parse JSON value as QUuid: not a string"));
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}
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return stringToUuid(source.toString());
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}
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template <>
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QJsonValue toJsonValue<QUuid>(const QUuid &source, convertType<QUuid>) {
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return uuidToString(source);
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}
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// String types
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template <>
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QString toString(const QUuid &source, convertType<QUuid>) {
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return uuidToString(source);
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}
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template <>
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QString toString(const qint32 &source, convertType<qint32>) {
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return QString::number(source);
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}
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template <>
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QString toString(const qint64 &source, convertType<qint64>) {
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return QString::number(source);
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}
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template <>
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QString toString(const float &source, convertType<float>) {
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return QString::number(source);
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}
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template <>
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QString toString(const double &source, convertType<double>) {
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return QString::number(source);
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}
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template <>
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QString toString(const bool &source, convertType<bool>) {
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return source ? QStringLiteral("true") : QStringLiteral("false");
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}
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template <>
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QString toString(const QString &source, convertType<QString>) {
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return source;
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}
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} // NS Support
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} // NS Jellyfin
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