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#include "atomitem.h"
#include <QSqlError>
#include <QSqlQuery>
#include <QXmlStreamReader>
#include "atomchannel.h"
#include "constants.h"
#include "macros.h"
#include "rsshit_db.h"
AtomItem::AtomItem(QXmlStreamReader *xmlReader)
{
Q_ASSERT(xmlReader != nullptr);
const QString titleTag{"title"};
const QString linkTag{"link"};
const QString categoryTag{"category"};
const QString guidTag{"guid"};
const QString pubDateTag{"pubDate"};
const QString descriptionTag{"description"};
const QString encodedTag{"encoded"};
while (!xmlReader->atEnd() && !xmlReader->hasError()) {
const auto itemNext = xmlReader->readNext();
switch (itemNext) {
case QXmlStreamReader::TokenType::StartElement: {
const auto name = xmlReader->name();
const auto elementText = xmlReader->readElementText();
if (name == titleTag)
title = elementText;
else if (name == linkTag)
link = elementText;
else if (name == categoryTag)
categories.append(elementText);
else if (name == guidTag)
guid = AtomGuid{elementText};
else if (name == pubDateTag)
pubDate = QDateTime::fromString(elementText, Qt::DateFormat::RFC2822Date);
else if (name == descriptionTag)
description = elementText;
else if (name == encodedTag)
encoded = elementText;
break;
}
case QXmlStreamReader::TokenType::EndElement:
// qDebug() << "EndElement: " << xmlReader->name();
return;
case QXmlStreamReader::TokenType::Characters:
const auto characters = xmlReader->text().toString().simplified();
if (characters.isEmpty())
break;
qDebug() << "item: characters: " << characters;
break;
}
}
}
int AtomItem::getDbId()
{
if (id != rsshit::db::IdNotFound)
return id;
const auto db = rsshit::db::open();
if (!db)
return rsshit::db::IdNotFound;
QSqlQuery selectQ{"select id from items where link=?"};
selectQ.addBindValue(link);
if (!selectQ.exec()) {
qWarning() << "cannot exec query" << selectQ.lastQuery() << ":"
<< selectQ.lastError().text();
return rsshit::db::IdNotFound;
}
if (!selectQ.next())
return rsshit::db::IdNotFound;
const auto idVariant = selectQ.value(rsshit::db::idTag);
if (!idVariant.isValid() || !idVariant.canConvert<int>())
return rsshit::db::IdNotFound;
bool ok{false};
const auto result = idVariant.toInt(&ok);
if (!ok) {
qWarning() << "got invalid id from db:" << idVariant;
return rsshit::db::IdNotFound;
}
return result;
}
int AtomItem::createInDb(const int feedId)
{
if (id != rsshit::db::IdNotFound)
return id;
const auto db = rsshit::db::open();
if (!db)
return rsshit::db::IdNotFound;
QSqlQuery insertQ{
"insert into items(feed_fk, pub_datetime_unix, title, link, author, description)"
"values(?, ?, ?, ?, ?, ?)"};
insertQ.addBindValue(feedId);
insertQ.addBindValue(pubDate.toSecsSinceEpoch());
insertQ.addBindValue(title);
insertQ.addBindValue(link);
insertQ.addBindValue(author);
insertQ.addBindValue(description);
if (!insertQ.exec()) {
qWarning() << "cannot exec query" << insertQ.lastQuery() << ":"
<< insertQ.lastError().text();
return rsshit::db::IdNotFound;
}
return insertQ.lastInsertId().toInt();
}
int AtomItem::getOrInsertDbId(const int feedId)
{
const auto id = getDbId();
if (id != rsshit::db::IdNotFound)
return id;
return createInDb(feedId);
}
QDebug operator<<(QDebug debug, const AtomItem &item)
{
QDebugStateSaver saver{debug};
debug.nospace() << typeid(AtomItem).name() << " {" << Qt::endl;
PRINT_ATOM_FIELD(item, title);
PRINT_ATOM_FIELD(item, link);
PRINT_ATOM_FIELD(item, categories);
PRINT_ATOM_FIELD(item, guid);
PRINT_ATOM_FIELD(item, pubDate);
// PRINT_ATOM_ITEM_FIELD(description);
// PRINT_ATOM_ITEM_FIELD(encoded);
auto halfSize = item.description.size() / 2;
constexpr decltype(halfSize) maxLeft{70};
constexpr decltype(halfSize) maxRight{20};
auto left = std::min(maxLeft, halfSize);
auto right = std::min(maxRight, halfSize);
debug.nospace().noquote() << "\tdescription: \"" << item.description.left(left) << "..."
<< item.description.right(right) << '"' << Qt::endl;
halfSize = item.encoded.size() / 2;
left = std::min(maxLeft, halfSize);
right = std::min(maxRight, halfSize);
debug.nospace().noquote() << "\tencoded: \"" << item.encoded.left(left) << "..."
<< item.encoded.right(right) << '"' << Qt::endl;
debug.nospace() << "}";
return debug;
}
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