Cockatrice/libcockatrice_card/libcockatrice/card/database/card_database.cpp

#include "card_database.h"

#include "../relation/card_relation.h"
#include "card_database_manager.h"
#include "parser/cockatrice_xml_4.h"

#include <QCryptographicHash>
#include <QDebug>
#include <QDirIterator>
#include <QFile>
#include <QRegularExpression>
#include <algorithm>
#include <utility>

CardDatabase::CardDatabase(QObject *parent,
                           ICardPreferenceProvider *prefs,
                           ICardDatabasePathProvider *pathProvider,
                           ICardSetPriorityController *_setPriorityController)
    : QObject(parent), setPriorityController(_setPriorityController), loadStatus(NotLoaded)
{
    qRegisterMetaType<CardInfoPtr>("CardInfoPtr");
    qRegisterMetaType<CardInfoPtr>("CardSetPtr");
    qRegisterMetaType<CardDatabaseData>("CardDatabaseData");

    // create loader and wire it up
    loader = new CardDatabaseLoader(this, this, pathProvider, prefs, setPriorityController);
    // re-emit loader signals (so other code doesn't need to know about internals)
    connect(loader, &CardDatabaseLoader::loadingFinished, this, &CardDatabase::cardDatabaseLoadingFinished);
    connect(loader, &CardDatabaseLoader::loadingFailed, this, &CardDatabase::cardDatabaseLoadingFailed);
    connect(loader, &CardDatabaseLoader::newSetsFound, this, &CardDatabase::cardDatabaseNewSetsFound);
    connect(loader, &CardDatabaseLoader::allNewSetsEnabled, this, &CardDatabase::cardDatabaseAllNewSetsEnabled);
    // swap the finished snapshot into the live database. Uses AutoConnection so
    // that cross-thread loads are delivered via the event loop while same-thread/
    // synchronous callers get the swap immediately.
    connect(loader, &CardDatabaseLoader::databaseDataReady, this, &CardDatabase::swapInDatabaseData);

    querier = new CardDatabaseQuerier(this, this, prefs);
}

CardDatabase::~CardDatabase()
{
    clear();
}

void CardDatabase::clear()
{
    QMutexLocker locker(clearDatabaseMutex);

    for (const auto &card : cards.values()) {
        if (card) {
            removeCard(card);
        }
    }

    cards.clear();
    simpleNameCards.clear();

    sets.clear();
    ICardDatabaseParser::clearSetlist();

    loadStatus = NotLoaded;
}

void CardDatabase::loadCardDatabases()
{
    loadStatus = loader->loadCardDatabases();
}

void CardDatabase::reloadCardDatabasesAndNotify()
{
    loadCardDatabases();

    if (loadStatus == Ok) {
        checkUnknownSets();
        // A reload reconstructs the exact same enabled-set state, so the cached
        // set-name / alt-name data computed during construction is still valid.
        // Skipping the per-card refresh avoids a full 36k-card recompute that
        // would otherwise duplicate the work already done while building cards.
        notifyEnabledSetsChanged(false);
    }
}

bool CardDatabase::saveCustomTokensToFile()
{
    return loader->saveCustomTokensToFile();
}

void CardDatabase::refreshCachedReverseRelatedCards()
{
    refreshCachedReverseRelatedCards(cards);
}

void CardDatabase::refreshCachedReverseRelatedCards(CardNameMap &cardMap)
{
    for (const auto &card : cardMap) {
        card->resetReverseRelatedCards2Me();
    }

    for (const auto &card : cardMap) {
        for (auto *rel : card->getReverseRelatedCards()) {
            if (auto target = cardMap.value(rel->getName())) {
                auto *newRel = new CardRelation(card->getName(), rel->getAttachType(), rel->getIsCreateAllExclusion(),
                                                rel->getIsVariable(), rel->getDefaultCount(), rel->getIsPersistent(),
                                                rel->getIsFaceDown());
                target->addReverseRelatedCards2Me(newRel);
            }
        }
    }
}

void CardDatabase::addCard(const CardInfoPtr &card)
{
    if (card == nullptr) {
        qCWarning(CardDatabaseLog) << "CardDatabase::addCard(nullptr)";
        return;
    }

    auto name = card->getName();

    // If a card already exists, just add the new set property.
    if (auto existing = cards.value(name)) {
        for (const auto &printings : card->getSets()) {
            for (const auto &printing : printings) {
                existing->addToSet(printing.getSet(), printing);
            }
        }
        return;
    }

    QMutexLocker locker(addCardMutex);
    cards.insert(name, card);
    simpleNameCards.insert(card->getSimpleName(), card);

    emit cardAdded(card);
}

void CardDatabase::removeCard(const CardInfoPtr &card)
{
    if (card.isNull()) {
        qCWarning(CardDatabaseLog) << "CardDatabase::removeCard(nullptr)";
        return;
    }

    for (auto *cardRelation : card->getRelatedCards()) {
        cardRelation->deleteLater();
    }

    for (auto *cardRelation : card->getReverseRelatedCards()) {
        cardRelation->deleteLater();
    }

    for (auto *cardRelation : card->getReverseRelatedCards2Me()) {
        cardRelation->deleteLater();
    }

    QMutexLocker locker(removeCardMutex);
    cards.remove(card->getName());
    simpleNameCards.remove(card->getSimpleName());
    emit cardRemoved(card);
}

void CardDatabase::addSet(const CardSetPtr &set)
{
    sets.insert(set->getShortName(), set);
}

CardSetPtr CardDatabase::getSet(const QString &setName)
{
    if (sets.contains(setName)) {
        return sets.value(setName);
    } else {
        CardSetPtr newSet = CardSet::newInstance(setPriorityController, setName);
        sets.insert(setName, newSet);
        return newSet;
    }
}

CardSetList CardDatabase::getSetList() const
{
    CardSetList result;
    for (auto set : sets.values()) {
        result << set;
    }
    return result;
}

void CardDatabase::checkUnknownSets()
{
    auto _sets = getSetList();

    if (_sets.getEnabledSetsNum()) {
        // if some sets are first found on this run, ask the user
        int numUnknownSets = _sets.getUnknownSetsNum();
        QStringList unknownSetNames = _sets.getUnknownSetsNames();
        if (numUnknownSets > 0) {
            emit cardDatabaseNewSetsFound(numUnknownSets, unknownSetNames);
        } else {
            _sets.markAllAsKnown();
        }
    } else {
        // No set enabled. Probably this is the first time running trice
        _sets.guessSortKeys();
        _sets.sortByKey();
        _sets.enableAll();
        notifyEnabledSetsChanged();

        emit cardDatabaseAllNewSetsEnabled();
    }
}

void CardDatabase::enableAllUnknownSets()
{
    auto _sets = getSetList();
    _sets.enableAllUnknown();
}

void CardDatabase::markAllSetsAsKnown()
{
    auto _sets = getSetList();
    _sets.markAllAsKnown();
}

void CardDatabase::notifyEnabledSetsChanged(bool recomputeCachedSets)
{
    if (recomputeCachedSets) {
        // refresh the list of cached set names / alt names for every card; this is
        // only needed when the enabled-set state actually changed (e.g. the user
        // toggled a set in the settings UI).
        for (const CardInfoPtr &card : cards) {
            card->refreshCachedSets();
        }
    }

    // inform the carddatabasemodels that they need to re-check their list of cards
    emit cardDatabaseEnabledSetsChanged();
}

void CardDatabase::addFormat(const FormatRulesPtr &format)
{
    formats.insert(format->formatName.toLower(), format);
}

void CardDatabase::swapInDatabaseData(CardDatabaseData data)
{
    for (const auto &card : cards) {
        for (auto *rel : card->getRelatedCards()) {
            rel->deleteLater();
        }
        for (auto *rel : card->getReverseRelatedCards()) {
            rel->deleteLater();
        }
        for (auto *rel : card->getReverseRelatedCards2Me()) {
            rel->deleteLater();
        }
    }

    cards = std::move(data.cards);
    simpleNameCards = std::move(data.simpleNameCards);
    sets = std::move(data.sets);
    formats = std::move(data.formats);

    loadStatus = cards.isEmpty() ? NotLoaded : Ok;

    // inform listeners that the whole database was replaced; they should
    // rebuild from the live containers in a single batch instead of reacting
    // to individual card additions.
    emit cardDatabaseReset();
}