Relay create content/pubsub topic

waku/src/node/mod.rs

@@ -1,6 +1,7 @@
 mod config;
 mod management;
 mod peers;
+mod relay;
 
 // std
 use multiaddr::Multiaddr;

waku/src/node/relay.rs

@@ -0,0 +1,47 @@
+use crate::general::{Encoding, WakuContentTopic, WakuPubSubTopic};
+use std::ffi::{CStr, CString};
+
+pub fn waku_create_content_topic(
+    application_name: &str,
+    application_version: usize,
+    content_topic_name: &str,
+    enconding: Encoding,
+) -> WakuContentTopic {
+    unsafe {
+        CStr::from_ptr(waku_sys::waku_content_topic(
+            CString::new(application_name)
+                .expect("Application name should always transform to CString")
+                .into_raw(),
+            application_version
+                .try_into()
+                .expect("Version should fit within an u32"),
+            CString::new(content_topic_name)
+                .expect("Conmtent topic should always transform to CString")
+                .into_raw(),
+            CString::new(enconding.to_string())
+                .expect("Encoding should always transform to CString")
+                .into_raw(),
+        ))
+    }
+    .to_str()
+    .expect("&str from result should always be")
+    .parse()
+    .expect("Content topic data should be always parseable")
+}
+
+pub fn waku_create_pubsub_topic(topic_name: &str, enconding: Encoding) -> WakuPubSubTopic {
+    unsafe {
+        CStr::from_ptr(waku_sys::waku_pubsub_topic(
+            CString::new(topic_name)
+                .expect("Topic name should always transform to CString")
+                .into_raw(),
+            CString::new(enconding.to_string())
+                .expect("Encoding should always transform to CString")
+                .into_raw(),
+        ))
+    }
+    .to_str()
+    .expect("&str from result should always be")
+    .parse()
+    .expect("Pubsub topic data should be always parseable")
+}