[Refactor] Move LoadedDeck and DeckFileFormat data types into libcockatrice_deck_list (#7424)

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

libcockatrice_deck_list/libcockatrice/deck_list/deck_file_format.cpp

@@ -0,0 +1,11 @@
+#include "deck_file_format.h"
+
+#include <qnamespace.h>
+
+DeckFileFormat::Format DeckFileFormat::getFormatFromName(const QString &fileName)
+{
+    if (fileName.endsWith(".cod", Qt::CaseInsensitive)) {
+        return Cockatrice;
+    }
+    return PlainText;
+}

libcockatrice_deck_list/libcockatrice/deck_list/deck_file_format.h

@@ -0,0 +1,36 @@
+#ifndef COCKATRICE_DECK_FILE_FORMAT_H
+#define COCKATRICE_DECK_FILE_FORMAT_H
+#include <QString>
+
+namespace DeckFileFormat
+{
+
+/**
+ * The deck file formats that Cockatrice supports.
+ */
+enum Format
+{
+    /**
+     * Plaintext deck files, a format that is intended to be widely supported among different programs.
+     * This format does not support Cockatrice specific features such as banner cards or tags.
+     */
+    PlainText,
+
+    /**
+     * This is Cockatrice's native deck file format, and supports deck metadata such as banner cards and tags.
+     * Stored as .cod files.
+     */
+    Cockatrice
+};
+
+/**
+ * Determines what deck file format the given filename corresponds to.
+ *
+ * @param fileName The filename
+ * @return The deck format
+ */
+Format getFormatFromName(const QString &fileName);
+
+} // namespace DeckFileFormat
+
+#endif // COCKATRICE_DECK_FILE_FORMAT_H

libcockatrice_deck_list/libcockatrice/deck_list/loaded_deck.cpp

@@ -0,0 +1,11 @@
+#include "loaded_deck.h"
+
+bool LoadedDeck::LoadInfo::isEmpty() const
+{
+    return fileName.isEmpty() && remoteDeckId == NON_REMOTE_ID;
+}
+
+bool LoadedDeck::isEmpty() const
+{
+    return deckList.isEmpty() && lastLoadInfo.isEmpty();
+}

libcockatrice_deck_list/libcockatrice/deck_list/loaded_deck.h

@@ -0,0 +1,39 @@
+#ifndef COCKATRICE_LOADED_DECK_H
+#define COCKATRICE_LOADED_DECK_H
+
+#include "deck_file_format.h"
+#include "libcockatrice/deck_list/deck_list.h"
+
+#include <QString>
+
+/**
+ * @brief Represents a deck that was loaded from somewhere.
+ * Contains the DeckList itself, as well as info about where it was loaded from.
+ */
+struct LoadedDeck
+{
+
+    /**
+     * @brief Information about where the deck was loaded from.
+     *
+     * For local decks, the remoteDeckId field will always be -1.
+     * For remote decks, fileName will be empty and fileFormat will always be CockatriceFormat
+     */
+    struct LoadInfo
+    {
+        static constexpr int NON_REMOTE_ID = -1;
+
+        QString fileName = "";
+        DeckFileFormat::Format fileFormat = DeckFileFormat::Cockatrice;
+        int remoteDeckId = NON_REMOTE_ID;
+
+        bool isEmpty() const;
+    };
+
+    DeckList deckList;          ///< The decklist itself
+    LoadInfo lastLoadInfo = {}; ///< info about where the deck was loaded from
+
+    bool isEmpty() const;
+};
+
+#endif // COCKATRICE_LOADED_DECK_H