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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "redditmodel.h"
#include <QtCore>
#include <QtNetwork>
RedditModel::RedditModel(QObject *parent) : QAbstractTableModel(parent) {}
RedditModel::RedditModel(const QString &clientId, QObject *parent) :
QAbstractTableModel(parent),
redditWrapper(clientId)
{
grant();
}
int RedditModel::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return threads.size();
}
int RedditModel::columnCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return threads.size() ? 1 : 0;
}
QVariant RedditModel::data(const QModelIndex &index, int role) const
{
Q_UNUSED(role);
if (!index.isValid())
return QVariant();
if (role == Qt::DisplayRole) {
const auto childrenObject = threads.at(index.row());
Q_ASSERT(childrenObject.value("data").isObject());
const auto dataObject = childrenObject.value("data").toObject();
return dataObject.value("title").toString();
}
return QVariant();
}
void RedditModel::grant()
{
redditWrapper.grant();
connect(&redditWrapper, &RedditWrapper::authenticated, this, &RedditModel::update);
}
void RedditModel::update()
{
auto reply = redditWrapper.requestHotThreads();
connect(reply, &QNetworkReply::finished, [=]() {
reply->deleteLater();
if (reply->error() != QNetworkReply::NoError) {
emit error(reply->errorString());
return;
}
const auto json = reply->readAll();
const auto document = QJsonDocument::fromJson(json);
Q_ASSERT(document.isObject());
const auto rootObject = document.object();
Q_ASSERT(rootObject.value("kind").toString() == "Listing");
const auto dataValue = rootObject.value("data");
Q_ASSERT(dataValue.isObject());
const auto dataObject = dataValue.toObject();
const auto childrenValue = dataObject.value("children");
Q_ASSERT(childrenValue.isArray());
const auto childrenArray = childrenValue.toArray();
if (childrenArray.isEmpty())
return;
beginInsertRows(QModelIndex(), threads.size(), childrenArray.size() + threads.size() - 1);
for (const auto childValue : std::as_const(childrenArray)) {
Q_ASSERT(childValue.isObject());
threads.append(childValue.toObject());
}
endInsertRows();
});
}
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