From b5f5fdefbbee3ae75bb032774263885c46d63a7f Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom.smeding@gmail.com>
Date: Mon, 13 Jul 2020 19:26:17 +0200
Subject: ssh/client: More ergonomic interface with / commands and focusing

---
 ssh/client.c      | 30 ++++++++++++++++++++++++++++++
 ssh/string_view.c |  7 +++++++
 ssh/string_view.h |  3 +++
 3 files changed, 40 insertions(+)

diff --git a/ssh/client.c b/ssh/client.c
index 3fe0869..52f26c6 100644
--- a/ssh/client.c
+++ b/ssh/client.c
@@ -149,6 +149,7 @@ static bool parse_args(
 struct state {
 	char **rooms;
 	size_t num_rooms;
+	char *focus_room;
 };
 
 static void autocomplete_roomname(const struct state *state, char **namep) {
@@ -193,6 +194,24 @@ static bool handle_line(
 	struct tomsg_client *client,
 	struct string_view line
 ) {
+	if (line.len == 0) return false;
+	if (line.s[0] != '/' || (line.len >= 2 && line.s[0] == '/' && line.s[1] == '/')) {
+		if (state->focus_room != NULL) {
+			char *message = NULL;
+			sv_copy(line, &message);
+			enum tomsg_retval ret = tomsg_send(client, state->focus_room, message, NULL);
+			free(message);
+			if (ret != TOMSG_OK) return true;
+			return false;
+		} else {
+			printf("Can't send directly, no room is /focus'ed\n");
+			return false;
+		}
+	}
+
+	// drop the '/'
+	sv_skip(&line, 1);
+
 	const struct string_view command = tokenise_greedy(&line);
 	char *args[10];
 	int num_args = 0;
@@ -274,6 +293,16 @@ static bool handle_line(
 	} else if (sv_equals(command, "quit") || sv_equals(command, "exit")) {
 		quit_requested = true;
 
+	} else if (sv_equals(command, "focus")) {
+		if (parse_args(line, args, num_args = 1, false)) {
+			autocomplete_roomname(state, &args[0]);
+			if (state->focus_room != NULL) free(state->focus_room);
+			state->focus_room = args[0];
+			args[0] = NULL;
+			printf("Focused room set to %s.\n", state->focus_room);
+			ret = TOMSG_OK;
+		}
+
 	} else if (sv_equals(command, "help")) {
 		printf(
 			"Commands:\n"
@@ -532,6 +561,7 @@ int main(int argc, char **argv) {
 	struct state state = (struct state){
 		.rooms = NULL,
 		.num_rooms = 0,
+		.focus_room = NULL,
 	};
 
 	struct pollfd pollfds[2];
diff --git a/ssh/string_view.c b/ssh/string_view.c
index 2f4f22a..ba05236 100644
--- a/ssh/string_view.c
+++ b/ssh/string_view.c
@@ -70,3 +70,10 @@ void sv_skip_whitespace(struct string_view *line) {
 		line->len--;
 	}
 }
+
+void sv_skip(struct string_view *line, size_t num) {
+	if (!line->s) return;
+	if (num > line->len) num = line->len;
+	line->s += num;
+	line->len -= num;
+}
diff --git a/ssh/string_view.h b/ssh/string_view.h
index 659dad4..6c3f47a 100644
--- a/ssh/string_view.h
+++ b/ssh/string_view.h
@@ -33,3 +33,6 @@ struct string_view sv_tokenise_word(struct string_view *line);
 
 // Skips all isspace() at the beginning of the string
 void sv_skip_whitespace(struct string_view *line);
+
+// Skips the given number of characters
+void sv_skip(struct string_view *line, size_t num);
-- 
cgit v1.2.3-54-g00ecf