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/**
* This file is part of JS8Call.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* (C) 2018 Jordan Sherer <kn4crd@gmail.com> - All Rights Reserved
*
**/
#include "Message.h"
#include "DriftingDateTime.h"
#include "MessageError.h"
/******************************************************************************/
// Constants
/******************************************************************************/
namespace {
constexpr qint64 EPOCH = 1499299200000; // July 6, 2017
}
/******************************************************************************/
// Local Utilities
/******************************************************************************/
namespace {
auto generateId() {
return QString::number(DriftingDateTime::currentMSecsSinceEpoch() - EPOCH);
}
} // namespace
/******************************************************************************/
// Message::Data Implementation
/******************************************************************************/
struct Message::Data final : public QSharedData {
// Return the ID value from the variant map, if there is one, or zero
// if there's no ID in the map.
qint64 id() const { return params_.value("_ID").toLongLong(); }
// Generate a new ID value and insert it into the map, replacing any ID
// value that might already have been present. Return the ID value.
qint64 insertId() {
return params_.insert("_ID", generateId())->toLongLong();
}
// If there's a non-zero ID in the variant map, return it, otherwise
// generate one, insert it, and return it.
qint64 ensureId() {
if (auto const it = params_.find("_ID"); it != params_.end()) {
if (auto const id = it->toLongLong())
return id;
}
return insertId();
}
// Data members
QString type_;
QString value_;
QVariantMap params_;
};
/******************************************************************************/
// Constructors
/******************************************************************************/
Message::Message() : d_{new Data} {}
Message::Message(QString const &type, QString const &value) : Message() {
d_->type_ = type, d_->value_ = value;
d_->insertId();
}
Message::Message(QString const &type, QString const &value,
QVariantMap const ¶ms)
: Message() {
d_->type_ = type, d_->value_ = value;
d_->params_ = params;
d_->ensureId();
}
/******************************************************************************/
// Assignment, copying, and destruction
/******************************************************************************/
Message &Message::operator=(Message &&) noexcept = default;
Message &Message::operator=(Message const &) = default;
Message::Message(Message const &) = default;
Message::Message(Message &&) noexcept = default;
Message::~Message() = default;
/******************************************************************************/
// Accessors
/******************************************************************************/
qint64 Message::id() const { return d_->id(); }
QString Message::type() const { return d_->type_; }
QString Message::value() const { return d_->value_; }
QVariantMap Message::params() const { return d_->params_; }
/******************************************************************************/
// Manipulators
/******************************************************************************/
qint64 Message::ensureId() { return d_->ensureId(); }
void Message::setType(QString const &type) { d_->type_ = type; }
void Message::setValue(QString const &value) { d_->value_ = value; }
/******************************************************************************/
// Deserialization
/******************************************************************************/
Message Message::fromJson(QByteArray const &json) {
QJsonParseError parse;
QJsonDocument document = QJsonDocument::fromJson(json, &parse);
if (parse.error)
throw std::system_error{MessageError::Code::json_parsing_error,
parse.errorString().toStdString()};
return fromJson(document);
}
Message Message::fromJson(QJsonDocument const &json) {
if (!json.isObject())
throw std::system_error{MessageError::Code::json_not_an_object};
return fromJson(json.object());
}
Message Message::fromJson(QJsonObject const &json) {
Message message;
if (auto const it = json.find("type"); it != json.end() && it->isString()) {
message.d_->type_ = it->toString();
}
if (auto const it = json.find("value");
it != json.end() && it->isString()) {
message.d_->value_ = it->toString();
}
if (auto const it = json.find("params");
it != json.end() && it->isObject()) {
message.d_->params_ = it->toObject().toVariantMap();
}
return message;
}
/******************************************************************************/
// Conversions
/******************************************************************************/
QByteArray Message::toJson() const {
return toJsonDocument().toJson(QJsonDocument::Compact);
}
QJsonDocument Message::toJsonDocument() const {
return QJsonDocument(toJsonObject());
}
QJsonObject Message::toJsonObject() const {
return {{"type", d_->type_},
{"value", d_->value_},
{"params", QJsonObject::fromVariantMap(d_->params_)}};
}
QVariantMap Message::toVariantMap() const {
return {
{"type", d_->type_}, {"value", d_->value_}, {"params", d_->params_}};
}
/******************************************************************************/
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