[DeckList] Move metadata into struct (#6380)

* [DeckList] Move metadata into struct

* wipe metadata if preserveMetadata is false

libcockatrice_deck_list/libcockatrice/deck_list/deck_list.cpp

@@ -77,6 +77,11 @@ void SideboardPlan::write(QXmlStreamWriter *xml)
     xml->writeEndElement();
 }
 
+bool DeckList::Metadata::isEmpty() const
+{
+    return name.isEmpty() && comments.isEmpty() && bannerCard.isEmpty() && tags.isEmpty();
+}
+
 DeckList::DeckList()
 {
     root = new InnerDecklistNode;
@@ -122,20 +127,20 @@ bool DeckList::readElement(QXmlStreamReader *xml)
     const QString childName = xml->name().toString();
     if (xml->isStartElement()) {
         if (childName == "lastLoadedTimestamp") {
-            lastLoadedTimestamp = xml->readElementText();
+            metadata.lastLoadedTimestamp = xml->readElementText();
         } else if (childName == "deckname") {
-            name = xml->readElementText();
+            metadata.name = xml->readElementText();
         } else if (childName == "comments") {
-            comments = xml->readElementText();
+            metadata.comments = xml->readElementText();
         } else if (childName == "bannerCard") {
             QString providerId = xml->attributes().value("providerId").toString();
             QString cardName = xml->readElementText();
-            bannerCard = {cardName, providerId};
+            metadata.bannerCard = {cardName, providerId};
         } else if (childName == "tags") {
-            tags.clear(); // Clear existing tags
+            metadata.tags.clear(); // Clear existing tags
             while (xml->readNextStartElement()) {
                 if (xml->name().toString() == "tag") {
-                    tags.append(xml->readElementText());
+                    metadata.tags.append(xml->readElementText());
                 }
             }
         } else if (childName == "zone") {
@@ -155,24 +160,30 @@ bool DeckList::readElement(QXmlStreamReader *xml)
     return true;
 }
 
+void writeMetadata(QXmlStreamWriter *xml, const DeckList::Metadata &metadata)
+{
+    xml->writeTextElement("lastLoadedTimestamp", metadata.lastLoadedTimestamp);
+    xml->writeTextElement("deckname", metadata.name);
+    xml->writeStartElement("bannerCard");
+    xml->writeAttribute("providerId", metadata.bannerCard.providerId);
+    xml->writeCharacters(metadata.bannerCard.name);
+    xml->writeEndElement();
+    xml->writeTextElement("comments", metadata.comments);
+
+    // Write tags
+    xml->writeStartElement("tags");
+    for (const QString &tag : metadata.tags) {
+        xml->writeTextElement("tag", tag);
+    }
+    xml->writeEndElement();
+}
+
 void DeckList::write(QXmlStreamWriter *xml) const
 {
     xml->writeStartElement("cockatrice_deck");
     xml->writeAttribute("version", "1");
-    xml->writeTextElement("lastLoadedTimestamp", lastLoadedTimestamp);
-    xml->writeTextElement("deckname", name);
-    xml->writeStartElement("bannerCard");
-    xml->writeAttribute("providerId", bannerCard.providerId);
-    xml->writeCharacters(bannerCard.name);
-    xml->writeEndElement();
-    xml->writeTextElement("comments", comments);
 
-    // Write tags
-    xml->writeStartElement("tags");
-    for (const QString &tag : tags) {
-        xml->writeTextElement("tag", tag);
-    }
-    xml->writeEndElement();
+    writeMetadata(xml, metadata);
 
     // Write zones
     for (int i = 0; i < root->size(); i++) {
@@ -329,7 +340,7 @@ bool DeckList::loadFromStream_Plain(QTextStream &in, bool preserveMetadata)
         const auto &current = inputs.at(index++);
         if (!current.contains(reEmpty)) {
             match = reComment.match(current);
-            name = match.captured();
+            metadata.name = match.captured();
             break;
         }
     }
@@ -337,10 +348,10 @@ bool DeckList::loadFromStream_Plain(QTextStream &in, bool preserveMetadata)
         const auto &current = inputs.at(index++);
         if (!current.contains(reEmpty)) {
             match = reComment.match(current);
-            comments += match.captured() + '\n';
+            metadata.comments += match.captured() + '\n';
         }
     }
-    comments.chop(1);
+    metadata.comments.chop(1);
 
     // Discard empty lines
     while (index < max_line && inputs.at(index).contains(reEmpty)) {
@@ -504,9 +515,7 @@ void DeckList::cleanList(bool preserveMetadata)
 {
     root->clearTree();
     if (!preserveMetadata) {
-        setName();
-        setComments();
-        setTags();
+        metadata = {};
     }
     refreshDeckHash();
 }

libcockatrice_deck_list/libcockatrice/deck_list/deck_list.h

@@ -126,12 +126,24 @@ public:
 class DeckList : public QObject
 {
     Q_OBJECT
+
+public:
+    struct Metadata
+    {
+        QString name;                ///< User-defined deck name.
+        QString comments;            ///< Free-form comments or notes.
+        CardRef bannerCard;          ///< Optional representative card for the deck.
+        QStringList tags;            ///< User-defined tags for deck classification.
+        QString lastLoadedTimestamp; ///< Timestamp string of last load.
+
+        /**
+         * @brief Checks if all values (except for lastLoadedTimestamp) in the metadata is empty.
+         */
+        bool isEmpty() const;
+    };
+
 private:
-    QString name;                                  ///< User-defined deck name.
-    QString comments;                              ///< Free-form comments or notes.
-    CardRef bannerCard;                            ///< Optional representative card for the deck.
-    QString lastLoadedTimestamp;                   ///< Timestamp string of last load.
-    QStringList tags;                              ///< User-defined tags for deck classification.
+    Metadata metadata;                             ///< Deck metadata that is stored in the deck file
     QMap<QString, SideboardPlan *> sideboardPlans; ///< Named sideboard plans.
     InnerDecklistNode *root;                       ///< Root of the deck tree (zones + cards).
 
@@ -181,34 +193,34 @@ public slots:
     ///@{
     void setName(const QString &_name = QString())
     {
-        name = _name;
+        metadata.name = _name;
     }
     void setComments(const QString &_comments = QString())
     {
-        comments = _comments;
+        metadata.comments = _comments;
     }
     void setTags(const QStringList &_tags = QStringList())
     {
-        tags = _tags;
+        metadata.tags = _tags;
         emit deckTagsChanged();
     }
     void addTag(const QString &_tag)
     {
-        tags.append(_tag);
+        metadata.tags.append(_tag);
         emit deckTagsChanged();
     }
     void clearTags()
     {
-        tags.clear();
+        metadata.tags.clear();
         emit deckTagsChanged();
     }
     void setBannerCard(const CardRef &_bannerCard = {})
     {
-        bannerCard = _bannerCard;
+        metadata.bannerCard = _bannerCard;
     }
     void setLastLoadedTimestamp(const QString &_lastLoadedTimestamp = QString())
     {
-        lastLoadedTimestamp = _lastLoadedTimestamp;
+        metadata.lastLoadedTimestamp = _lastLoadedTimestamp;
     }
     ///@}
 
@@ -223,32 +235,38 @@ public:
     ~DeckList() override;
 
     /// @name Metadata getters
+    /// The individual metadata getters still exist for backwards compatibility.
+    /// TODO: Figure out when we can remove them.
     ///@{
+    const Metadata &getMetadata() const
+    {
+        return metadata;
+    }
     QString getName() const
     {
-        return name;
+        return metadata.name;
     }
     QString getComments() const
     {
-        return comments;
+        return metadata.comments;
     }
     QStringList getTags() const
     {
-        return tags;
+        return metadata.tags;
     }
     CardRef getBannerCard() const
     {
-        return bannerCard;
+        return metadata.bannerCard;
     }
     QString getLastLoadedTimestamp() const
     {
-        return lastLoadedTimestamp;
+        return metadata.lastLoadedTimestamp;
     }
     ///@}
 
     bool isBlankDeck() const
     {
-        return name.isEmpty() && comments.isEmpty() && getCardList().isEmpty();
+        return metadata.isEmpty() && getCardList().isEmpty();
     }
 
     /// @name Sideboard plans
@@ -286,7 +304,7 @@ public:
     void cleanList(bool preserveMetadata = false);
     bool isEmpty() const
     {
-        return root->isEmpty() && name.isEmpty() && comments.isEmpty() && sideboardPlans.isEmpty();
+        return root->isEmpty() && metadata.isEmpty() && sideboardPlans.isEmpty();
     }
     QStringList getCardList() const;
     QList<CardRef> getCardRefList() const;

libcockatrice_utility/libcockatrice/utility/card_ref.h

@@ -19,6 +19,11 @@ struct CardRef
     {
         return name == other.name && providerId == other.providerId;
     }
+
+    bool isEmpty() const
+    {
+        return name.isEmpty() && providerId.isEmpty();
+    }
 };
 
 #endif // CARD_REF_H