allow using animated emojis + emojis from other servers w/ nitro

also hide unavailable emojis and role-locked emojis. if you have the role it still wont show up yet though

discord/discord.cpp

@@ -1617,6 +1617,13 @@ std::set<Snowflake> DiscordClient::GetPrivateChannels() const {
     return ret;
 }
 
+PremiumType DiscordClient::GetSelfPremiumType() const {
+    const auto &data = GetUserData();
+    if (data.PremiumType.has_value())
+        return *data.PremiumType;
+    return PremiumType::None;
+}
+
 void DiscordClient::HeartbeatThread() {
     while (m_client_connected) {
         if (!m_heartbeat_acked) {

discord/discord.hpp

@@ -75,6 +75,8 @@ public:
     std::set<Snowflake> GetMessagesForChannel(Snowflake id) const;
     std::set<Snowflake> GetPrivateChannels() const;
 
+    PremiumType GetSelfPremiumType() const;
+
     void FetchMessagesInChannel(Snowflake id, std::function<void(const std::vector<Snowflake> &)> cb);
     void FetchMessagesInChannelBefore(Snowflake channel_id, Snowflake before_id, std::function<void(const std::vector<Snowflake> &)> cb);
     std::optional<Message> GetMessage(Snowflake id) const;

discord/user.hpp

@@ -3,6 +3,12 @@
 #include "json.hpp"
 #include <string>
 
+enum class PremiumType {
+    None = 0,
+    NitroClassic = 1,
+    Nitro = 2,
+};
+
 struct UserData {
     enum {
         DiscordEmployee = 1 << 0,
@@ -36,7 +42,7 @@ struct UserData {
     std::optional<bool> IsVerified;
     std::optional<std::string> Email; // null
     std::optional<uint64_t> Flags;
-    std::optional<int> PremiumType; // null
+    std::optional<PremiumType> PremiumType; // null
     std::optional<uint64_t> PublicFlags;
 
     // undocumented (opt)