feat: Add 7TV Emotes and Badges (#4002)

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/providers/seventv/SeventvEmotes.hpp

@@ -0,0 +1,73 @@
+#pragma once
+
+#include "boost/optional.hpp"
+#include "common/Aliases.hpp"
+#include "common/Atomic.hpp"
+#include "providers/twitch/TwitchChannel.hpp"
+
+#include <memory>
+
+namespace chatterino {
+
+// https://github.com/SevenTV/API/blob/a84e884b5590dbb5d91a5c6b3548afabb228f385/data/model/emote-set.model.go#L29-L36
+enum class SeventvActiveEmoteFlag : int64_t {
+    None = 0LL,
+
+    // Emote is zero-width
+    ZeroWidth = (1LL << 0),
+
+    // Overrides Twitch Global emotes with the same name
+    OverrideTwitchGlobal = (1 << 16),
+    // Overrides Twitch Subscriber emotes with the same name
+    OverrideTwitchSubscriber = (1 << 17),
+    // Overrides BetterTTV emotes with the same name
+    OverrideBetterTTV = (1 << 18),
+};
+
+// https://github.com/SevenTV/API/blob/a84e884b5590dbb5d91a5c6b3548afabb228f385/data/model/emote.model.go#L57-L70
+enum class SeventvEmoteFlag : int64_t {
+    None = 0LL,
+    // The emote is private and can only be accessed by its owner, editors and moderators
+    Private = 1 << 0,
+    // The emote was verified to be an original creation by the uploader
+    Authentic = (1LL << 1),
+    // The emote is recommended to be enabled as Zero-Width
+    ZeroWidth = (1LL << 8),
+
+    // Content Flags
+
+    // Sexually Suggesive
+    ContentSexual = (1LL << 16),
+    // Rapid flashing
+    ContentEpilepsy = (1LL << 17),
+    // Edgy or distasteful, may be offensive to some users
+    ContentEdgy = (1 << 18),
+    // Not allowed specifically on the Twitch platform
+    ContentTwitchDisallowed = (1LL << 24),
+};
+
+using SeventvActiveEmoteFlags = FlagsEnum<SeventvActiveEmoteFlag>;
+using SeventvEmoteFlags = FlagsEnum<SeventvEmoteFlag>;
+
+struct Emote;
+using EmotePtr = std::shared_ptr<const Emote>;
+class EmoteMap;
+
+class SeventvEmotes final
+{
+public:
+    SeventvEmotes();
+
+    std::shared_ptr<const EmoteMap> globalEmotes() const;
+    boost::optional<EmotePtr> globalEmote(const EmoteName &name) const;
+    void loadGlobalEmotes();
+    static void loadChannelEmotes(const std::weak_ptr<Channel> &channel,
+                                  const QString &channelId,
+                                  std::function<void(EmoteMap &&)> callback,
+                                  bool manualRefresh);
+
+private:
+    Atomic<std::shared_ptr<const EmoteMap>> global_;
+};
+
+}  // namespace chatterino