feat: improved ServerNode scriptability

modules/you_done_it/ydi_server.cpp

@@ -99,10 +99,10 @@ void receive_thread_entry() {
 	}
 }
 
-void open() {
+bool open() {
 	if (service) {
 		print_error("Server: Detected attempt to open duplicate Server, exiting without action.");
-		return;
+		return false;
 	}
 	print_line("Server: Starting");
 	service.emplace();
@@ -111,7 +111,7 @@ void open() {
 	} catch (...) {
 		service.reset();
 		print_line("Server: Failed to create context");
-		return;
+		return false;
 	}
 	print_line("Server: Created zmq context");
 	try {
@@ -121,7 +121,7 @@ void open() {
 		service->context.reset();
 		service.reset();
 		print_line("Server: Failed to create socket");
-		return;
+		return false;
 	}
 	print_line("Server: Created socket");
 	try {
@@ -133,12 +133,13 @@ void open() {
 		service->context.reset();
 		service.reset();
 		print_line("Server: Failed to bind socket");
-		return;
+		return false;
 	}
 	print_line("Server: Bound socket");
 	receive_thread.emplace(receive_thread_entry);
 	assert(receive_thread->joinable());
 	print_line("Server: Startup complete!");
+	return true;
 }
 
 void close() {
@@ -170,16 +171,22 @@ void close() {
 }
 
 bool has_client() {
-	if (service) {
-		std::scoped_lock lock{ service->mtx };
-		return service->client.has_value();
-	} else {
+	if (!service) {
 		return false;
 	}
+	std::scoped_lock lock{ service->mtx };
+	return service->client.has_value();
+}
+
+bool is_running() {
+	return service.has_value();
 }
 
 namespace receive {
 bool new_clues(Vector<NetworkData::ClueID> &out) {
+	if (!service) {
+		return false;
+	}
 	std::scoped_lock lock{ service->mtx };
 	bool const has_new{ !service->new_clues.is_empty() };
 	if (has_new) {