degesch: start with lexically ordered chanusers

This makes nick autocompletion start in a non-arbitrary state.

1 files changed, 24 insertions, 0 deletions

diff --git a/degesch.c b/degesch.c
index 76b8b16..c61fab6 100644
--- a/degesch.c
+++ b/degesch.c
@@ -7606,6 +7606,25 @@ channel_user_sort_entry_cmp (const void *entry_a, const void *entry_b)
 		b->channel_user->user->nickname);
 }
 
+static void
+irc_sort_channel_users (struct channel *channel)
+{
+	size_t n_users = channel->users_len;
+	struct channel_user_sort_entry entries[n_users], *p = entries;
+	LIST_FOR_EACH (struct channel_user, iter, channel->users)
+	{
+		p->s = channel->s;
+		p->channel_user = iter;
+		p++;
+	}
+
+	qsort (entries, n_users, sizeof *entries, channel_user_sort_entry_cmp);
+
+	channel->users = NULL;
+	while (p-- != entries)
+		LIST_PREPEND (channel->users, p->channel_user);
+}
+
 static char *
 make_channel_users_list (struct channel *channel)
 {
@@ -7676,6 +7695,9 @@ irc_process_names (struct channel *channel)
 	struct str_map present = str_map_make (NULL);
 	present.key_xfrm = channel->s->irc_strxfrm;
 
+	// Either that, or there is no other inhabitant, and sorting does nothing
+	bool we_have_just_joined = channel->users_len == 1;
+
 	struct strv *updates = &channel->names_buf;
 	for (size_t i = 0; i < updates->len; i++)
 	{
@@ -7699,6 +7721,8 @@ irc_process_names (struct channel *channel)
 	str_map_free (&present);
 	strv_reset (&channel->names_buf);
 
+	if (we_have_just_joined)
+		irc_sort_channel_users (channel);
 	if (!channel->show_names_after_who)
 		irc_process_names_finish (channel);
 }