From d0b7545f1e516db4362442a3d0f69d337f2e3e59 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Janouch?= <p.janouch@gmail.com>
Date: Tue, 21 Apr 2015 21:47:34 +0200
Subject: [PATCH] degesch: implement TOPIC handling

---
 degesch.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/degesch.c b/degesch.c
index 8221cb8..b0c87ee 100644
--- a/degesch.c
+++ b/degesch.c
@@ -277,6 +277,7 @@ enum buffer_line_type
 	BUFFER_LINE_PART,                   ///< PART
 	BUFFER_LINE_KICK,                   ///< KICK
 	BUFFER_LINE_NICK,                   ///< NICK
+	BUFFER_LINE_TOPIC,                  ///< TOPIC
 	BUFFER_LINE_QUIT,                   ///< QUIT
 	BUFFER_LINE_STATUS,                 ///< Whatever status messages
 	BUFFER_LINE_ERROR                   ///< Whatever error messages
@@ -926,6 +927,14 @@ buffer_line_display (struct app_context *ctx, struct buffer_line *line)
 		else
 			str_append_printf (&text, " -  You are now known as %s", object);
 		break;
+	case BUFFER_LINE_TOPIC:
+		if (*who)
+			str_append_printf (&text,
+				" -  %s has changed the topic to: %s", nick, object);
+		else
+			str_append_printf (&text,
+				" -  You have changed the topic to: %s", object);
+		break;
 	case BUFFER_LINE_QUIT:
 		if (*who)
 			str_append_printf (&text, "<-- %s (%s) has quit (%s)",
@@ -2189,7 +2198,31 @@ irc_handle_quit (struct app_context *ctx, const struct irc_message *msg)
 static void
 irc_handle_topic (struct app_context *ctx, const struct irc_message *msg)
 {
-	// TODO: log a message
+	if (!msg->prefix || msg->params.len < 2)
+		return;
+
+	const char *channel_name = msg->params.vector[0];
+	const char *topic = msg->params.vector[1];
+	if (!irc_is_channel (ctx, channel_name))
+		return;
+
+	struct channel *channel = str_map_find (&ctx->irc_channels, channel_name);
+	struct buffer *buffer = str_map_find (&ctx->irc_buffer_map, channel_name);
+	hard_assert ((channel && buffer) ||
+		(channel && !buffer) || (!channel && !buffer));
+
+	// It would be is weird for this to be false
+	if (channel)
+	{
+		free (channel->topic);
+		channel->topic = xstrdup (topic);
+	}
+
+	if (buffer)
+	{
+		buffer_send (ctx, buffer, BUFFER_LINE_TOPIC, 0,
+			msg->prefix, NULL, "%s", topic);
+	}
 }
 
 static struct irc_handler