From b8bfcfde7c54e32c7d5d521325bf43d98efa17b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Janouch?= <p.janouch@gmail.com>
Date: Mon, 20 Apr 2015 21:49:46 +0200
Subject: [PATCH] degesch: finish QUIT handling

---
 degesch.c | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/degesch.c b/degesch.c
index 8ea9ad9..dc80fb1 100644
--- a/degesch.c
+++ b/degesch.c
@@ -1986,7 +1986,13 @@ irc_handle_quit (struct app_context *ctx, const struct irc_message *msg)
 		str_map_find (&ctx->irc_buffer_map, user->nickname);
 	if (buffer)
 	{
-		// TODO: log a message in the buffer
+		buffer_send (ctx, buffer, BUFFER_LINE_QUIT, 0,
+			msg->prefix, message, "");
+
+		// TODO: set some kind of a flag in the buffer and when the user
+		//   reappers on a channel (JOIN), log a "is back online" message.
+		//   Also set this flag when we receive a "no such nick" numeric
+		//   and reset it when we send something to the buffer.
 	}
 
 	// Log a message in all channels the user is in
@@ -1994,14 +2000,30 @@ irc_handle_quit (struct app_context *ctx, const struct irc_message *msg)
 	{
 		buffer = str_map_find (&ctx->irc_buffer_map, iter->channel->name);
 		hard_assert (buffer != NULL);
-		// TODO: log a message in the buffer
+		buffer_send (ctx, buffer, BUFFER_LINE_QUIT, 0,
+			msg->prefix, message, "");
 
-		// TODO: remove the "channel_user" link from iter->channel
-		// TODO: remove the link from the list and free it
+		// Unlink the user from the channel
+		struct channel *channel = iter->channel;
+		LIST_FOR_EACH (struct channel_user, iter, channel->users)
+			if (iter->user == user)
+			{
+				LIST_UNLINK (channel->users, iter);
+				channel_user_destroy (iter);
+			}
+
+		LIST_UNLINK (user->channels, iter);
+		user_channel_destroy (iter);
 	}
 
-	// TODO: check reference count on the user and if it's just one,
-	//   remove him from "irc_users"
+	// If it's the last reference, there's no reason for the user to stay.
+	// Note that when the user has their own buffer, it still keeps a reference
+	// and we don't have to care about removing them from "irc_buffer_map".
+	if (user->ref_count == 1)
+	{
+		hard_assert (!user->channels);
+		str_map_set (&ctx->irc_users, user->nickname, NULL);
+	}
 }
 
 static void