update guild cache on role/emoji updates

Discord.C++/Discord.cpp

@@ -209,7 +209,7 @@ void DiscordCPP::Discord::on_websocket_incoming_message(const json &payload) {
 }
 
 void DiscordCPP::Discord::handle_raw_event(const std::string &event_name, const json &data) {
-    // https://discordapp.com/developers/docs/topics/gateway#commands-and-events-gateway-events
+    // https://discord.com/developers/docs/topics/gateway-events#receive-events
     if (event_name == "READY") {
         _user = new User(data.at("user"), get_token());
 
@@ -352,6 +352,24 @@ void DiscordCPP::Discord::handle_raw_event(const std::string &event_name, const
                           std::string(e.what()));
             }
         }
+    } else if (event_name == "GUILD_EMOJIS_UPDATE") {
+        Guild *guild = get_guild(data.at("guild_id").get<std::string>());
+        std::vector<Emoji> emojis;
+
+        for (const json &emoji : data.at("emojis")) {
+            emojis.push_back(Emoji(emoji, get_token()));
+        }
+
+        guild->_update_emojis(emojis);
+    } else if (event_name == "GUILD_ROLE_CREATE") {
+        Guild *guild = get_guild(data.at("guild_id").get<std::string>());
+        guild->_add_role(Role(data.at("role"), guild->get_id(), get_token()));
+    } else if (event_name == "GUILD_ROLE_UPDATE") {
+        Guild *guild = get_guild(data.at("guild_id").get<std::string>());
+        guild->_update_role(Role(data.at("role"), guild->get_id(), get_token()));
+    } else if (event_name == "GUILD_ROLE_DELETE") {
+        Guild *guild = get_guild(data.at("guild_id").get<std::string>());
+        guild->_remove_role(data.at("role_id").get<std::string>());
     } else if (event_name == "MESSAGE_CREATE") {
         if (has_value(data, ("guild_id"))) {
             std::string guild_id = data.at("guild_id").get<std::string>();

Discord.C++/Guild.cpp

@@ -1,6 +1,7 @@
 #include "Guild.h"
 
 #include <string>
+#include <vector>
 
 #include "ChannelHelper.h"
 #include "Emoji.h"
@@ -79,10 +80,12 @@ DiscordCPP::Guild::Guild(Discord* client, const std::string& id, const std::stri
 }
 
 void DiscordCPP::Guild::_add_channel(ChannelVariant channel) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
     channels.push_back(channel);
 }
 
 void DiscordCPP::Guild::_update_channel(ChannelVariant channel) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
     std::string channel_id = ChannelHelper::get_channel_id(channel);
     for (size_t i = 0; i < channels.size(); i++) {
         if (ChannelHelper::get_channel_id(channels[i]) == channel_id) {
@@ -94,6 +97,7 @@ void DiscordCPP::Guild::_update_channel(ChannelVariant channel) {
 }
 
 void DiscordCPP::Guild::_remove_channel(const std::string& channel_id) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
     for (size_t i = 0; i < channels.size(); i++) {
         if (ChannelHelper::get_channel_id(channels[i]) == channel_id) {
             channels.erase(channels.begin() + i);
@@ -103,11 +107,13 @@ void DiscordCPP::Guild::_remove_channel(const std::string& channel_id) {
 }
 
 void DiscordCPP::Guild::_add_member(Member member) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
     members.push_back(member);
     member_count += 1;
 }
 
 void DiscordCPP::Guild::_update_member(Member member) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
     for (size_t i = 0; i < members.size(); i++) {
         if (members[i].get_id() == member.get_id()) {
             members.erase(members.begin() + i);
@@ -117,6 +123,7 @@ void DiscordCPP::Guild::_update_member(Member member) {
 }
 
 void DiscordCPP::Guild::_remove_member(const std::string& member_id) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
     for (size_t i = 0; i < members.size(); i++) {
         if (members[i].get_id() == member_id) {
             members.erase(members.begin() + i);
@@ -125,6 +132,35 @@ void DiscordCPP::Guild::_remove_member(const std::string& member_id) {
     }
 }
 
+void DiscordCPP::Guild::_update_emojis(std::vector<Emoji> emojis) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
+    this->emojis = emojis;
+}
+
+void DiscordCPP::Guild::_add_role(Role role) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
+    roles.push_back(role);
+}
+
+void DiscordCPP::Guild::_update_role(Role role) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
+    for (size_t i = 0; i < roles.size(); i++) {
+        if (roles[i].get_id() == role.get_id()) {
+            roles.erase(roles.begin() + i);
+            roles.push_back(role);
+        }
+    }
+}
+
+void DiscordCPP::Guild::_remove_role(const std::string& role_id) {
+    std::lock_guard<std::mutex> lock(mutex_holder.mutex);
+    for (size_t i = 0; i < roles.size(); i++) {
+        if (roles[i].get_id() == role_id) {
+            roles.erase(roles.begin() + i);
+        }
+    }
+}
+
 ///@throws HTTPError
 void DiscordCPP::Guild::leave() {
     std::string url = "/guilds/@me/guilds/" + get_id();

Discord.C++/Guild.h

@@ -1,6 +1,7 @@
 #pragma once
 #include <optional>
 #include <string>
+#include <vector>
 
 #include "Channel.h"
 #include "ChannelHelper.h"
@@ -51,6 +52,7 @@ class Discord;
 class Guild : public DiscordObject {
    private:
     Discord* client = nullptr;
+    MutexHolder mutex_holder;
 
     /// the guild's name
     std::string name;
@@ -121,7 +123,10 @@ class Guild : public DiscordObject {
     DLL_EXPORT void _add_member(Member member);
     DLL_EXPORT void _update_member(Member member);
     DLL_EXPORT void _remove_member(const std::string& member_id);
-    // TODO: update emojis and roles
+    DLL_EXPORT void _update_emojis(std::vector<Emoji> emojis);
+    DLL_EXPORT void _add_role(Role role);
+    DLL_EXPORT void _update_role(Role role);
+    DLL_EXPORT void _remove_role(const std::string& role_id);
 
     friend Discord;
 

Discord.C++/Intents.cpp

@@ -10,6 +10,7 @@ Intents Intents::Default() {
 Intents Intents::All() {
     Intents intents = Intents::Default();
     intents.add(BANS);
+    intents.add(EMOJIS);
     intents.add(MESSAGES);
     intents.add(REACTIONS);
     intents.add(TYPING);

Discord.C++/static.h

@@ -42,3 +42,11 @@ DLL_EXPORT std::optional<T> get_optional(const json& j, const std::string& key)
     else
         return std::make_optional<T>(j.at(key).get<T>());
 }
+
+class MutexHolder {
+   public:
+    std::mutex mutex;
+    MutexHolder() : mutex() {}
+    MutexHolder(const MutexHolder&) : mutex() {}
+    MutexHolder operator=(const MutexHolder&) { return MutexHolder(); }
+};