feat: add more resource pack info

Adds pack format id and description to ResourcePack, that'll be parsed
from pack.mcmeta.

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/CMakeLists.txt

@@ -322,6 +322,8 @@ set(MINECRAFT_SOURCES
     minecraft/mod/Resource.cpp
     minecraft/mod/ResourceFolderModel.h
     minecraft/mod/ResourceFolderModel.cpp
+    minecraft/mod/ResourcePack.h
+    minecraft/mod/ResourcePack.cpp
     minecraft/mod/ResourcePackFolderModel.h
     minecraft/mod/ResourcePackFolderModel.cpp
     minecraft/mod/TexturePackFolderModel.h

launcher/minecraft/mod/Resource.h

@@ -80,6 +80,7 @@ class Resource : public QObject {
 
     [[nodiscard]] auto shouldResolve() const -> bool { return !m_is_resolving && !m_is_resolved; }
     [[nodiscard]] auto isResolving() const -> bool { return m_is_resolving; }
+    [[nodiscard]] auto isResolved() const -> bool { return m_is_resolved; }
     [[nodiscard]] auto resolutionTicket() const -> int { return m_resolution_ticket; }
 
     void setResolving(bool resolving, int resolutionTicket)

launcher/minecraft/mod/ResourcePack.cpp

@@ -0,0 +1,48 @@
+#include "ResourcePack.h"
+
+#include <QDebug>
+#include <QMap>
+
+#include "Version.h"
+
+// Values taken from:
+// https://minecraft.fandom.com/wiki/Tutorials/Creating_a_resource_pack#Formatting_pack.mcmeta
+static const QMap<int, std::pair<Version, Version>> s_pack_format_versions = {
+    { 1, { Version("1.6.1"), Version("1.8.9") } }, { 2, { Version("1.9"), Version("1.10.2") } },
+    { 3, { Version("1.11"), Version("1.12.2") } }, { 4, { Version("1.13"), Version("1.14.4") } },
+    { 5, { Version("1.15"), Version("1.16.1") } }, { 6, { Version("1.16.2"), Version("1.16.5") } },
+    { 7, { Version("1.17"), Version("1.17.1") } }, { 8, { Version("1.18"), Version("1.18.2") } },
+    { 9, { Version("1.19"), Version("1.19.2") } },
+};
+
+void ResourcePack::setPackFormat(int new_format_id)
+{
+    QMutexLocker locker(&m_data_lock);
+
+    if (!s_pack_format_versions.contains(new_format_id)) {
+        qCritical() << "Error: Pack format '%1' is not a recognized resource pack id.";
+        return;
+    }
+
+    m_pack_format = new_format_id;
+}
+
+void ResourcePack::setDescription(QString new_description)
+{
+    QMutexLocker locker(&m_data_lock);
+
+    m_description = new_description;
+}
+
+std::pair<Version, Version> ResourcePack::compatibleVersions() const
+{
+    if (!s_pack_format_versions.contains(m_pack_format)) {
+        // Not having a valid pack format is fine if we didn't yet parse the .mcmeta file,
+        // but if we did and we still don't have a valid pack format, that's a bit concerning.
+        Q_ASSERT(!isResolved());
+
+        return {{}, {}};
+    }
+
+    return s_pack_format_versions.constFind(m_pack_format).value();
+}

launcher/minecraft/mod/ResourcePack.h

@@ -2,12 +2,47 @@
 
 #include "Resource.h"
 
+#include <QMutex>
+
+class Version;
+
+/* TODO:
+ *
+ * Store pack.png
+ * Store localized descriptions
+ * */
+
 class ResourcePack : public Resource {
     Q_OBJECT
-    public:
+   public:
     using Ptr = shared_qobject_ptr<Resource>;
 
     ResourcePack(QObject* parent = nullptr) : Resource(parent) {}
     ResourcePack(QFileInfo file_info) : Resource(file_info) {}
 
+    /** Gets the numerical ID of the pack format. */
+    [[nodiscard]] int packFormat() const { return m_pack_format; }
+    /** Gets, respectively, the lower and upper versions supported by the set pack format. */
+    [[nodiscard]] std::pair<Version, Version> compatibleVersions() const;
+
+    /** Gets the description of the resource pack. */
+    [[nodiscard]] QString description() const { return m_description; }
+
+    /** Thread-safe. */
+    void setPackFormat(int new_format_id);
+
+    /** Thread-safe. */
+    void setDescription(QString new_description);
+
+   protected:
+    mutable QMutex m_data_lock;
+
+    /* The 'version' of a resource pack, as defined in the pack.mcmeta file.
+     * See https://minecraft.fandom.com/wiki/Tutorials/Creating_a_resource_pack#Formatting_pack.mcmeta
+     */
+    int m_pack_format = 0;
+
+    /** The resource pack's description, as defined in the pack.mcmeta file.
+     */
+    QString m_description;
 };