Add chat channel API

src/ChatChannel.as

@@ -0,0 +1,58 @@
+
+class ChatChannel {
+	string m_title;
+	BetterChat::IChatChannelSink@ m_sink;
+
+	array<ChatLine@> m_lines;
+
+	uint64 m_lastMessageTime = 0;
+
+	ChatChannel() {}
+
+	ChatChannel(const string&in title, BetterChat::IChatChannelSink@ sink) {
+		m_title = title;
+		@m_sink = sink;
+	}
+
+	void Clear()
+	{
+		m_lines.RemoveRange(0, m_lines.Length);
+	}
+
+	string GetTitle() {
+		return m_title;
+	}
+
+	void SendChatMessage(const string&in text) {
+		if (@m_sink !is null) {
+			m_sink.SendChatMessage(text);
+		}
+	}
+
+	void InsertLine(ChatLine@ line) {
+		m_lines.InsertLast(line);
+
+		if (m_lines.Length > uint(Setting_MaximumLines)) {
+			m_lines.RemoveRange(0, m_lines.Length - Setting_MaximumLines);
+		}
+
+		// Remember when the last message was received
+		m_lastMessageTime = Time::Now;
+	}
+}
+
+class ChatChannelHook: BetterChat::IChatChannelHook {
+	ChatChannel@ m_channel;
+
+	ChatChannelHook(ChatChannel@ channel) {
+		@m_channel = channel;
+	}
+
+	void Clear() override {
+		m_channel.Clear();
+	}
+
+	void AddChatEntry(BetterChat::ChatEntry entry) override {
+		g_window.AddChatLine(ChatLine(g_window.NextLineId(), Time::Stamp, entry), m_channel);
+	}
+}

src/ChatLine.as

@@ -45,6 +45,12 @@ class ChatLine
 	}
 #endif
 
+	ChatLine(uint id, int64 time, BetterChat::ChatEntry entry) {
+		m_id = id;
+		m_time = time;
+		FromSharedEntry(entry);
+	}
+
 	vec4 GetHighlightColor(const vec4 &in def = vec4(0, 0, 0, 1))
 	{
 		vec3 ret(def.x, def.y, def.z);
@@ -90,6 +96,14 @@ class ChatLine
 	}
 #endif
 
+	void FromSharedEntry(BetterChat::ChatEntry entry) {
+		// Trace the message to the log if needed by settings (and not in streamer mode)
+		if (Setting_TraceToLog && !Setting_StreamerMode) {
+			trace(entry.m_text);
+		}
+		FromChatLineInfo(ChatLineInfo(entry));
+	}
+
 	void FromChatLineInfo(const ChatLineInfo &in info)
 	{
 		string text = info.m_text;

src/ChatLineInfo.as

@@ -33,6 +33,36 @@ class ChatLineInfo
 
 	string m_text;
 
+	ChatLineInfo(BetterChat::ChatEntry entry) {
+		FromSharedEntry(entry);
+	}
+
+	void FromSharedEntry(BetterChat::ChatEntry entry) {
+		m_text = entry.m_text;
+		m_authorName = entry.m_authorName;
+		m_authorClubTag = entry.m_clubTag;
+		m_overrideClubTag = entry.m_clubTag != "";
+		m_linearHue = entry.m_linearHue;
+		m_teamNumber = entry.m_linearHue != 0. ? 1 : 0;
+		m_isSystem = entry.m_system;
+		m_scope = FromSharedScope(entry.m_scope);
+	}
+
+	ChatLineScope FromSharedScope(BetterChat::ChatEntryScope scope) {
+		switch (scope) {
+			case BetterChat::ChatEntryScope::Everyone:
+				return ChatLineScope::Everyone;
+			case BetterChat::ChatEntryScope::SpectatorCurrent:
+				return ChatLineScope::SpectatorCurrent;
+			case BetterChat::ChatEntryScope::SpectatorAll:
+				return ChatLineScope::SpectatorAll;
+			case BetterChat::ChatEntryScope::Team:
+				return ChatLineScope::Team;
+			default:
+				return ChatLineScope::YouOnly;
+		}
+	}
+
 #if TMNEXT
 	ChatLineInfo(NGameScriptChat_SEntry@ entry)
 	{