Address comments

cockatrice/src/interface/window_main.cpp

@@ -541,6 +541,10 @@ MainWindow::MainWindow(QWidget *parent)
 
 void MainWindow::startupConfigCheck()
 {
+    // Signals for unknown/failed DB were emitted during the front-loaded parse
+    // before MainWindow existed.  Drive the UX now that receivers are connected.
+    CardDatabaseManager::getInstance()->checkUnknownSets();
+
     if (SettingsCache::instance().debug().getLocalGameOnStartup()) {
         LocalGameOptions options;
         options.numberPlayers = SettingsCache::instance().debug().getLocalGamePlayerCount();

cockatrice/src/main.cpp

@@ -264,6 +264,8 @@ int main(int argc, char *argv[])
     // contention that happens when the load runs alongside window construction.
     // The CardDatabaseModel populates from the already-loaded data in its
     // constructor, so the window appears fully populated with no startup lag.
+    // Note: unknown-set / failure signals are deferred; MainWindow triggers
+    // checkUnknownSets() in startupConfigCheck() once receivers are connected.
     CardDatabaseManager::getInstance()->loadCardDatabases();
 
     MainWindow ui;

libcockatrice_card/libcockatrice/card/database/card_database.cpp

@@ -248,9 +248,6 @@ void CardDatabase::swapInDatabaseData(CardDatabaseData data)
 
     loadStatus = cards.isEmpty() ? NotLoaded : Ok;
 
-    // Detect newly-encountered sets now that the live data is populated.
-    checkUnknownSets();
-
     // 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.

libcockatrice_card/libcockatrice/card/database/card_database.h

@@ -54,12 +54,13 @@ protected:
     /** @brief Querier for higher-level card lookups. */
     CardDatabaseQuerier *querier;
 
-private:
+public:
     /**
      * @brief Check for sets that are unknown and emit signals if needed.
      */
     void checkUnknownSets();
 
+private:
     /**
      * @brief Refreshes the cached reverse-related cards for all cards.
      */

libcockatrice_card/libcockatrice/card/database/card_database_cache.cpp

@@ -6,11 +6,13 @@
 #include "../relation/card_relation.h"
 #include "../relation/card_relation_type.h"
 #include "../set/card_set.h"
+#include "card_database_loader.h"
 
 #include <QBuffer>
 #include <QDataStream>
 #include <QElapsedTimer>
 #include <QFile>
+#include <QSaveFile>
 #include <QVariantHash>
 
 namespace
@@ -50,6 +52,9 @@ QByteArray readHashBlob(QDataStream &in)
 {
     quint32 len = 0;
     in >> len;
+    if (in.status() != QDataStream::Ok || static_cast<qint64>(len) > in.device()->bytesAvailable()) {
+        return {};
+    }
     QByteArray blob(len, Qt::Uninitialized);
     in.readRawData(blob.data(), static_cast<int>(len));
     return blob;
@@ -72,7 +77,7 @@ QDate readDate(QDataStream &in)
 void writeRelation(QDataStream &out, const CardRelation *rel)
 {
     writeString(out, rel->getName());
-    out << static_cast<quint32>(static_cast<quint32>(rel->getAttachType()));
+    out << static_cast<quint32>(rel->getAttachType());
     out << rel->getIsCreateAllExclusion();
     out << rel->getIsVariable();
     out << rel->getDefaultCount();
@@ -323,7 +328,7 @@ FormatRulesPtr readFormat(QDataStream &in)
 
 bool CardDatabaseCache::write(const QString &cachePath, const CardDatabaseData &data, const QByteArray &sourceHash)
 {
-    QFile file(cachePath);
+    QSaveFile file(cachePath);
     if (!file.open(QIODevice::WriteOnly)) {
         return false;
     }
@@ -355,8 +360,7 @@ bool CardDatabaseCache::write(const QString &cachePath, const CardDatabaseData &
         writeFormat(out, format);
     }
 
-    file.close();
-    return file.error() == QFile::NoError;
+    return file.commit();
 }
 
 bool CardDatabaseCache::read(const QString &cachePath,
@@ -371,12 +375,12 @@ bool CardDatabaseCache::read(const QString &cachePath,
 
     // Read the whole cache into memory up front; deserialization then works on an
     // in-memory buffer with no further disk I/O.
-    const QByteArray raw = file.readAll();
+    QByteArray raw = file.readAll();
     if (raw.isEmpty()) {
         return false;
     }
 
-    QBuffer buffer(const_cast<QByteArray *>(&raw));
+    QBuffer buffer(&raw);
     buffer.open(QIODevice::ReadOnly);
     QDataStream in(&buffer);
     in.setVersion(QDataStream::Qt_6_4);
@@ -416,6 +420,7 @@ bool CardDatabaseCache::read(const QString &cachePath,
                 for (const PrintingInfo &printing : printings) {
                     if (auto set = printing.getSet()) {
                         set->append(card);
+                        break;
                     }
                 }
             }
@@ -430,7 +435,12 @@ bool CardDatabaseCache::read(const QString &cachePath,
         data.formats.insert(format->formatName.toLower(), format);
     }
 
-    qInfo() << "[cache] read + deserialize" << deserializeTimer.elapsed() << "ms for" << cardCount << "cards";
+    qCInfo(CardDatabaseLoadingLog) << "[cache] read + deserialize" << deserializeTimer.elapsed() << "ms for"
+                                   << cardCount << "cards";
+
+    if (in.status() != QDataStream::Ok) {
+        return false;
+    }
 
     return file.error() == QFile::NoError;
 }

libcockatrice_card/libcockatrice/card/database/card_database_loader.cpp

@@ -6,6 +6,7 @@
 #include "parser/cockatrice_xml_4.h"
 
 #include <QByteArray>
+#include <QCoreApplication>
 #include <QCryptographicHash>
 #include <QDebug>
 #include <QDirIterator>
@@ -118,7 +119,7 @@ LoadStatus CardDatabaseLoader::doLoadCardDatabases()
     }
 
     // AFTER all the cards have been loaded: resolve the reverse-related tags
-    // against the fully-built snapshot (off the GUI thread).
+    // against the fully-built snapshot.
     database->refreshCachedReverseRelatedCards(data.cards);
 
     if (loadStatus == Ok) {
@@ -143,6 +144,12 @@ QByteArray CardDatabaseLoader::computeSourceHash() const
     // Hash over the paths, sizes and modification times of every input file so
     // the cache invalidates when any source changes. Cheap (no content read).
     QCryptographicHash hash(QCryptographicHash::Sha256);
+
+    // Include the application version so parser changes automatically invalidate
+    // old caches even when the XML files are byte-identical.
+    hash.addData(QCoreApplication::applicationVersion().toUtf8());
+    hash.addData(QByteArray(1, '\0'));
+
     const QStringList inputs = QStringList()
                                << pathProvider->getCardDatabasePath() << pathProvider->getTokenDatabasePath()
                                << pathProvider->getSpoilerCardDatabasePath() << collectCustomDatabasePaths();
@@ -150,8 +157,11 @@ QByteArray CardDatabaseLoader::computeSourceHash() const
         QFileInfo info(path);
         if (info.exists()) {
             hash.addData(path.toUtf8());
+            hash.addData(QByteArray(1, '\0'));
             hash.addData(QByteArray::number(info.size()));
+            hash.addData(QByteArray(1, '\0'));
             hash.addData(QByteArray::number(info.lastModified().toSecsSinceEpoch()));
+            hash.addData(QByteArray(1, '\0'));
         }
     }
     return hash.result();

libcockatrice_card/libcockatrice/card/database/card_database_loader.h

@@ -64,8 +64,8 @@ public slots:
     /**
      * @brief Loads all configured card databases.
      *
-     * The heavy work runs on a dedicated high-priority thread so it is not
-     * starved by the GUI thread's startup work on low-core machines.
+     * Runs synchronously on the calling thread.  The caller should ensure
+     * that any signal receivers are already connected before invoking this.
      * @return Status of the main database load.
      */
     LoadStatus loadCardDatabases();
@@ -120,7 +120,7 @@ private:
     LoadStatus loadFromFile(const QString &fileName, CardDatabaseData &data);
 
     /**
-     * @brief Performs the actual load work on the dedicated loader thread.
+     * @brief Performs the actual load work synchronously on the calling thread.
      * @return Status of the main database load.
      */
     LoadStatus doLoadCardDatabases();

libcockatrice_interfaces/libcockatrice/interfaces/interface_card_set_priority_controller.h

@@ -25,8 +25,8 @@ public:
     struct SetOptions
     {
         unsigned int sortKey = 0;
-        bool enabled = true;
-        bool isKnown = true;
+        bool enabled = false;
+        bool isKnown = false;
     };
 
     virtual ~ICardSetPriorityController() = default;