Move make_initial_presence to presence::send module

xmpp/src/presence/send.rs

@@ -0,0 +1,22 @@
+// Copyright (c) 2023 xmpp-rs contributors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+use tokio_xmpp::parsers::{
+    caps::{compute_disco, hash_caps, Caps},
+    disco::DiscoInfoResult,
+    hashes::Algo,
+    presence::{Presence, Type as PresenceType},
+};
+
+pub(crate) fn make_initial_presence(disco: &DiscoInfoResult, node: &str) -> Presence {
+    let caps_data = compute_disco(disco);
+    let hash = hash_caps(&caps_data, Algo::Sha_1).unwrap();
+    let caps = Caps::new(node, hash);
+
+    let mut presence = Presence::new(PresenceType::None);
+    presence.add_payload(caps);
+    presence
+}