web: v1: rest: mavlink: Add helper endpoint

src/lib/web/routes/v1/rest/mavlink.rs

@@ -1,13 +1,20 @@
 use std::net::SocketAddr;
 
 use axum::{
-    extract::{ConnectInfo, Path},
-    http::StatusCode,
+    extract::{ConnectInfo, Path, Query},
+    http::{header, StatusCode},
     response::IntoResponse,
     Json,
 };
+use clap::error;
+use serde::Deserialize;
 use tracing::*;
 
+use crate::{
+    drivers::rest::parse_query,
+    mavlink_json::{MAVLinkJSON, MAVLinkJSONHeader},
+};
+
 pub(crate) async fn mavlink(path: Option<Path<String>>) -> impl IntoResponse {
     let path = match path {
         Some(path) => path.0.to_string(),
@@ -28,6 +35,42 @@ pub(crate) async fn post_mavlink(
     }
 }
 
+#[derive(Deserialize)]
+pub struct MessageInfo {
+    pub name: String,
+}
+
+pub(crate) async fn helper(name: Query<MessageInfo>) -> impl IntoResponse {
+    let message_name = name.0.name.to_ascii_uppercase();
+
+    let result = <mavlink::ardupilotmega::MavMessage as mavlink::Message>::message_id_from_name(
+        &message_name,
+    )
+    .and_then(|id| {
+        <mavlink::ardupilotmega::MavMessage as mavlink::Message>::default_message_from_id(id)
+    });
+
+    match result {
+        Ok(message) => {
+            let header = MAVLinkJSONHeader {
+                inner: Default::default(),
+                message_id: Some(mavlink::Message::message_id(&message)),
+            };
+            let json = serde_json::to_string_pretty(&MAVLinkJSON { header, message }).unwrap();
+            ([(header::CONTENT_TYPE, "application/json")], json).into_response()
+        }
+        Err(error) => {
+            let error_json = serde_json::to_string_pretty(&error).unwrap();
+            (
+                StatusCode::NOT_FOUND,
+                [(header::CONTENT_TYPE, "application/json")],
+                error_json,
+            )
+                .into_response()
+        }
+    }
+}
+
 pub(crate) async fn message_id_from_name(name: Path<String>) -> impl IntoResponse {
     use mavlink::{self, Message};
     mavlink::ardupilotmega::MavMessage::message_id_from_name(&name.0.to_ascii_uppercase())

src/lib/web/routes/v1/rest/mod.rs

@@ -8,6 +8,7 @@ use tracing::*;
 pub fn router() -> Router {
     Router::new()
         .route("/ws", get(websocket::websocket_handler))
+        .route("/helper", get(mavlink::helper))
         .route(
             "/mavlink",
             get(mavlink::mavlink).post(mavlink::post_mavlink),