Add ability to highlight messages based on user badges (#1704)

Co-authored-by: Paweł <zneix@zneix.eu>
Co-authored-by: 23rd <23rd@vivaldi.net>
Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/providers/twitch/TwitchBadges.hpp

@@ -5,8 +5,14 @@
 #include <unordered_map>
 
 #include "common/UniqueAccess.hpp"
+#include "messages/Image.hpp"
+#include "util/DisplayBadge.hpp"
 #include "util/QStringHash.hpp"
 
+#include "pajlada/signals/signal.hpp"
+
+#include <shared_mutex>
+
 namespace chatterino {
 
 struct Emote;
@@ -17,13 +23,42 @@ class Paths;
 
 class TwitchBadges
 {
-public:
-    void loadTwitchBadges();
+    using QIconPtr = std::shared_ptr<QIcon>;
+    using ImagePtr = std::shared_ptr<Image>;
+    using BadgeIconCallback = std::function<void(QString, const QIconPtr)>;
 
+public:
+    static TwitchBadges *instance();
+
+    // Get badge from name and version
     boost::optional<EmotePtr> badge(const QString &set,
                                     const QString &version) const;
+    // Get first matching badge with name, regardless of version
+    boost::optional<EmotePtr> badge(const QString &set) const;
+
+    void getBadgeIcon(const QString &name, BadgeIconCallback callback);
+    void getBadgeIcon(const DisplayBadge &badge, BadgeIconCallback callback);
+    void getBadgeIcons(const QList<DisplayBadge> &badges,
+                       BadgeIconCallback callback);
 
 private:
+    static TwitchBadges *instance_;
+
+    TwitchBadges();
+    void loadTwitchBadges();
+    void loaded();
+    void loadEmoteImage(const QString &name, ImagePtr image,
+                        BadgeIconCallback &&callback);
+
+    std::shared_mutex badgesMutex_;
+    QMap<QString, QIconPtr> badgesMap_;
+
+    std::mutex queueMutex_;
+    std::queue<QPair<QString, BadgeIconCallback>> callbackQueue_;
+
+    std::shared_mutex loadedMutex_;
+    bool loaded_ = false;
+
     UniqueAccess<
         std::unordered_map<QString, std::unordered_map<QString, EmotePtr>>>
         badgeSets_;  // "bits": { "100": ... "500": ...