create database folder and move files into it

cockatrice/src/database/parser/card_database_parser.h

@@ -0,0 +1,45 @@
+#ifndef CARDDATABASE_PARSER_H
+#define CARDDATABASE_PARSER_H
+
+#include "../../card/card_info.h"
+
+#include <QIODevice>
+#include <QString>
+
+#define COCKATRICE_XML_XSI_NAMESPACE "http://www.w3.org/2001/XMLSchema-instance"
+
+class ICardDatabaseParser : public QObject
+{
+    Q_OBJECT
+public:
+    ~ICardDatabaseParser() override = default;
+
+    virtual bool getCanParseFile(const QString &name, QIODevice &device) = 0;
+    virtual void parseFile(QIODevice &device) = 0;
+    virtual bool saveToFile(SetNameMap sets,
+                            CardNameMap cards,
+                            const QString &fileName,
+                            const QString &sourceUrl = "unknown",
+                            const QString &sourceVersion = "unknown") = 0;
+    static void clearSetlist();
+
+protected:
+    /*
+     * A cached list of the available sets, needed to cross-reference sets from cards.
+     * Shared between all parsers
+     */
+    static SetNameMap sets;
+
+    CardSetPtr internalAddSet(const QString &setName,
+                              const QString &longName = "",
+                              const QString &setType = "",
+                              const QDate &releaseDate = QDate(),
+                              const CardSet::Priority priority = CardSet::PriorityFallback);
+signals:
+    void addCard(CardInfoPtr card);
+    void addSet(CardSetPtr set);
+};
+
+Q_DECLARE_INTERFACE(ICardDatabaseParser, "ICardDatabaseParser")
+
+#endif