[bus] add chat api

Author: codehz

BuiltinMods/Bus/CMakeLists.txt

@@ -1,3 +1,3 @@
 cmake_minimum_required (VERSION 3.8)
 
-def_mod (Bus LINK mini_bus DELAY_LINK CommandSupport)
+def_mod (Bus LINK mini_bus DELAY_LINK CommandSupport ChatAPI)

BuiltinMods/Bus/chat.cpp

@@ -0,0 +1,21 @@
+#include <Core/ServerInstance.h>
+
+#include <base/playerdb.h>
+#include <base/base.h>
+#include <mods/ChatAPI.h>
+
+#include "global.h"
+
+void ChatHandler(
+    Mod::PlayerEntry const &entry, std::string &displayName, std::string &content,
+    Mod::CallbackToken<std::string> &token) {
+  client->notify("chat", displayName + "\n" + content);
+}
+
+static RegisterAPI reg("ChatAPI", true, [] {
+  Mod::Chat::GetInstance().AddListener(SIG("chat"), {Mod::RecursiveEventHandlerAdaptor(ChatHandler)});
+  client->register_handler("announce", [](std::string_view content) -> std::string {
+    Mod::Chat::GetInstance().SendAnnounce(std::string{content});
+    return "";
+  });
+});