proper response

apps/master/src/commands/testnats.rs

@@ -1,6 +1,4 @@
-use std::str::from_utf8;
-
-use postcard::to_stdvec;
+use postcard::{from_bytes, to_stdvec};
 use serenity::{
     all::{
         CommandInteraction,
@@ -14,7 +12,7 @@ use serenity::{
     model::application::{CommandOptionType, ResolvedOption, ResolvedValue},
 };
 use types::{
-    jobs::{InnerStruct, Job, JobKind},
+    jobs::{DownloadJob, DownloadResponse, JobResponse},
     misc::new_uuid_v4,
 };
 
@@ -40,12 +38,9 @@ pub async fn run(
             )
             .await?;
 
-        let job = Job {
+        let job = DownloadJob {
             uuid: new_uuid_v4(),
-            kind: JobKind::Download,
-            inner: InnerStruct {
-                str: value.to_string(),
-            },
+            url: value.to_string(),
         };
 
         println!("job {:?}", job);
@@ -58,14 +53,22 @@ pub async fn run(
             Err(_why) => return Err(serenity::Error::Other("send error")),
         };
 
-        println!("response: {:?}", from_utf8(&response.payload).unwrap());
+        let job_response: JobResponse<DownloadResponse> = from_bytes(&response.payload).unwrap();
+
+        println!("response: {:?}", job_response);
+
+        let text_response: String;
+
+        if let Some(error) = job_response.error {
+            text_response = error;
+        } else if let Some(content) = job_response.content {
+            text_response = content.path.display().to_string();
+        } else {
+            text_response = "unkown".to_string();
+        }
 
         interaction
-            .edit_response(
-                ctx,
-                EditInteractionResponse::new()
-                    .content(format!("path: {}", from_utf8(&response.payload).unwrap())),
-            )
+            .edit_response(ctx, EditInteractionResponse::new().content(text_response))
             .await?;
     } else {
         interaction

apps/worker/src/main.rs

@@ -1,6 +1,8 @@
+mod workers;
+
 use futures::StreamExt;
-use postcard::from_bytes;
-use types::jobs::Job;
+use postcard::{from_bytes, to_stdvec};
+use types::jobs::JobResponse;
 use which::which;
 use yt_dlp::{Downloader, client::Libraries};
 
@@ -11,7 +13,7 @@ async fn main() {
         .expect("Error creating nats client");
 
     let mut subscriber = nats_client
-        .queue_subscribe("corro-dj.*", "download".to_string())
+        .queue_subscribe("corro-dj.*", "group1".to_string())
         .await
         .unwrap();
 
@@ -25,38 +27,31 @@ async fn main() {
     // Receive and process messages
     while let Some(message) = subscriber.next().await {
         println!("Received message {:?}", message);
-        let result: Job = from_bytes(&message.payload).unwrap();
-        println!("{:?}", result);
 
-        let video = match downloader.fetch_video_infos(result.inner.str).await {
-            Ok(video) => video,
-            Err(why) => {
-                println!("{:?}", why);
+        let subject = message.subject.split(".").collect::<Vec<&str>>()[1];
+
+        let result = match subject {
+            "download" => {
+                workers::download::download(&downloader, from_bytes(&message.payload).unwrap())
+                    .await
+            }
+            _ => {
+                println!("{subject}");
                 continue;
             }
         };
 
-        let audio_path = match downloader
-            .download_audio_stream_with_quality(
-                &video,
-                format!("{}.opus", video.id),
-                yt_dlp::model::AudioQuality::Best,
-                yt_dlp::model::AudioCodecPreference::Opus,
-            )
-            .await
-        {
-            Ok(path) => path,
-            Err(why) => {
-                println!("{:?}", why);
-                continue;
-            }
+        let response = match result {
+            Ok(response) => response,
+            Err(err) => JobResponse {
+                content: None,
+                error: Some(format!("{err}")),
+            },
         };
 
-        println!("reply: {:?}", audio_path);
-
         if let Some(reply) = message.reply {
             nats_client
-                .publish(reply, format!("{:?}", audio_path).into())
+                .publish(reply, to_stdvec(&response).unwrap().into())
                 .await
                 .unwrap();
         }

apps/worker/src/workers/download.rs

@@ -0,0 +1,34 @@
+use types::jobs::{DownloadJob, DownloadResponse, JobResponse};
+use yt_dlp::{Downloader, error::Error};
+
+pub async fn download(
+    downloader: &Downloader,
+    job: DownloadJob,
+) -> Result<JobResponse<DownloadResponse>, Error> {
+    println!("job: {:?}", job);
+
+    let video = match downloader.fetch_video_infos(job.url).await {
+        Ok(video) => video,
+        Err(err) => return Err(err),
+    };
+
+    let audio_path = match downloader
+        .download_audio_stream_with_quality(
+            &video,
+            format!("{}.opus", video.id),
+            yt_dlp::model::AudioQuality::Best,
+            yt_dlp::model::AudioCodecPreference::Opus,
+        )
+        .await
+    {
+        Ok(path) => path,
+        Err(err) => return Err(err),
+    };
+
+    println!("reply: {:?}", audio_path);
+
+    Ok(JobResponse {
+        content: Some(DownloadResponse { path: audio_path }),
+        error: None,
+    })
+}

apps/worker/src/workers/mod.rs

@@ -0,0 +1 @@
+pub mod download;

libs/types/src/jobs.rs

@@ -1,19 +1,21 @@
+use std::path::PathBuf;
+
 use serde::{Deserialize, Serialize};
 use uuid::Uuid;
 
 #[derive(Serialize, Deserialize, Debug)]
-pub enum JobKind {
-    Download,
+pub struct JobResponse<T> {
+    pub content: Option<T>,
+    pub error: Option<String>,
 }
 
 #[derive(Serialize, Deserialize, Debug)]
-pub struct InnerStruct {
-    pub str: String,
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct Job {
+pub struct DownloadJob {
     pub uuid: Uuid,
-    pub kind: JobKind,
-    pub inner: InnerStruct,
+    pub url: String,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct DownloadResponse {
+    pub path: PathBuf,
 }