show legacy username as tooltip under username

src/discord/objects.cpp

@@ -463,6 +463,7 @@ void from_json(const nlohmann::json &j, UserProfileData &m) {
     JS_D("mutual_guilds", m.MutualGuilds);
     JS_ON("premium_guild_since", m.PremiumGuildSince);
     JS_ON("premium_since", m.PremiumSince);
+    JS_ON("legacy_username", m.LegacyUsername);
     JS_D("user", m.User);
 }
 

src/discord/objects.hpp

@@ -617,6 +617,7 @@ struct UserProfileData {
     std::vector<MutualGuildData> MutualGuilds;
     std::optional<std::string> PremiumGuildSince; // null
     std::optional<std::string> PremiumSince;      // null
+    std::optional<std::string> LegacyUsername;    // null
     UserData User;
 
     friend void from_json(const nlohmann::json &j, UserProfileData &m);

src/windows/profilewindow.cpp

@@ -103,8 +103,13 @@ void ProfileWindow::OnFetchProfile(const UserProfileData &data) {
     m_pane_info.SetProfile(data);
     m_pane_guilds.SetMutualGuilds(data.MutualGuilds);
 
-    for (auto child : m_badges.get_children())
+    if (data.LegacyUsername.has_value()) {
+        m_username.set_tooltip_text("Originally known as " + *data.LegacyUsername);
+    }
+
+    for (auto child : m_badges.get_children()) {
         delete child;
+    }
 
     if (!data.User.PublicFlags.has_value()) return;
     const auto x = *data.User.PublicFlags;