fetch song queue data (#21)

Reviewed-on: #21
Co-authored-by: kdeng00 <kundeng00@pm.me>
Co-committed-by: kdeng00 <kundeng00@pm.me>

.env.docker.sample

@@ -0,0 +1,2 @@
+ROOT_DIRECTORY=/home/songparser/mydata
+ICARUS_BASE_API_URL=http://localhost:3000

.env.sample

@@ -0,0 +1,2 @@
+ROOT_DIRECTORY=/home/songparser/mydata
+ICARUS_BASE_API_URL=http://localhost:3000

.gitignore

@@ -1,2 +1,2 @@
 /target
-Cargo.lock
+.env

Cargo.toml

@@ -6,4 +6,11 @@ rust-version = "1.86"
 
 [dependencies]
 tokio = { version = "1.44.1", features = ["full"] }
+futures = { version = "0.3.31" }
+reqwest = { version = "0.12.19", features = ["json", "stream"] }
+serde = { version = "1.0.218", features = ["derive"] }
+serde_json = { version = "1.0.139" }
+uuid = { version = "1.16.0", features = ["v4", "serde"] }
+dotenvy = { version = "0.15.7" }
 icarus_models = { git = "ssh://git@git.kundeng.us/phoenix/icarus_models.git", tag = "v0.4.3" }
+icarus_envy = { git = "ssh://git@git.kundeng.us/phoenix/icarus_envy.git", tag = "v0.2.0" }

src/main.rs

@@ -1,38 +1,167 @@
-use std::error::Error;
-use tokio::io::AsyncReadExt;
-use tokio::net::{TcpListener, TcpStream};
-use tokio::spawn;
+use std::io::Write;
+
+pub const SECONDS_TO_SLEEP: u64 = 5;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn Error>> {
-    let listener = TcpListener::bind("127.0.0.1:8080").await?;
-    println!("API calling service listening on 127.0.0.1:8080");
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let app_base_url = get_icarus_url().await;
 
     loop {
-        let (stream, addr) = listener.accept().await?;
-        println!("Accepted connection from: {}", addr);
+        println!("Base URL: {}", app_base_url);
 
-        spawn(async move {
-            if let Err(e) = handle_connection(stream).await {
-                eprintln!("Error handling connection from {}: {}", addr, e);
+        match api::fetch_next_queue_item(&app_base_url).await {
+            Ok(response) => {
+                match response
+                    .json::<responses::fetch_next_queue_item::SongQueueItem>()
+                    .await
+                {
+                    Ok(song_queue_item) => {
+                        if !song_queue_item.data.is_empty() {
+                            println!("Song queue item: {:?}", song_queue_item);
+
+                            println!("Fetching song queue data");
+                            match api::fetch_song_queue_data::get_data(
+                                &app_base_url,
+                                &song_queue_item.data[0].id,
+                            )
+                            .await
+                            {
+                                Ok(response) => {
+                                    // Process data here...
+                                    let all_bytes =
+                                        api::fetch_song_queue_data::response::parse_response(
+                                            response,
+                                        )
+                                        .await?;
+
+                                    let (directory, filename) =
+                                        generate_song_queue_dir_and_filename().await;
+                                    let save_path =
+                                        save_song_to_fs(&directory, &filename, &all_bytes).await;
+
+                                    println!("Saved at: {:?}", save_path);
+
+                                    // TODO: Get queued song's metadata
+                                    // TODO: Get queued coverart
+                                    // TODO: Get queued coverart's data
+                                    // TODO: Apply metadata to the queued song
+                                    // TODO: Update the queued song with the updated queued song
+                                    // TODO: Create song
+                                    // TODO: Create coverart
+                                    // TODO: Wipe data from queued song
+                                    // TODO: Wipe data from queued coverart
                                 }
-        });
+                                Err(err) => {
+                                    eprintln!("Error fetching song queue data: {:?}", err);
+                                }
+                            }
+                        } else {
+                            println!("No data to fetch");
+                        }
+                    }
+                    Err(err) => {
+                        eprintln!("Error: {:?}", err);
+                    }
+                }
+            }
+            Err(e) => eprintln!("API call failed: {}", e),
+        }
+
+        println!("Sleeping");
+        tokio::time::sleep(tokio::time::Duration::from_secs(SECONDS_TO_SLEEP)).await;
     }
 }
 
-async fn handle_connection(mut stream: TcpStream) -> Result<(), Box<dyn Error + Send + Sync>> {
-    let mut buffer = [0; 1024];
+// TODO: Consider having something like this in icarus_models
+pub async fn generate_song_queue_dir_and_filename() -> (String, String) {
+    let mut song = icarus_models::song::Song::default();
+    song.filename = song.generate_filename(icarus_models::types::MusicTypes::FlacExtension, true);
 
-    loop {
-        let n = stream.read(&mut buffer).await?;
+    song.directory = icarus_envy::environment::get_root_directory().await;
 
-        if n == 0 {
-            break; // Connection closed
+    (song.directory, song.filename)
 }
 
-        let request_data = String::from_utf8_lossy(&buffer[..n]).trim().to_string();
-        println!("Received request: {}", request_data);
+// TODO: Check to see if this is available in icarus_models
+pub async fn save_song_to_fs(
+    directory: &String,
+    filename: &String,
+    data: &[u8],
+) -> std::path::PathBuf {
+    // TODO: Add function to save bytes to a file in icarus_models
+    // repo
+    let dir = std::path::Path::new(directory);
+    let save_path = dir.join(filename);
+
+    let mut file = std::fs::File::create(&save_path).unwrap();
+    file.write_all(data).unwrap();
+
+    save_path
 }
 
-    Ok(())
+mod responses {
+    pub mod fetch_next_queue_item {
+        use serde::{Deserialize, Serialize};
+
+        #[derive(Debug, Deserialize, Serialize)]
+        pub struct QueueItem {
+            pub id: uuid::Uuid,
+            pub filename: String,
+            pub status: String,
+        }
+
+        #[derive(Debug, Deserialize, Serialize)]
+        pub struct SongQueueItem {
+            pub message: String,
+            pub data: Vec<QueueItem>,
+        }
+    }
+}
+
+mod api {
+    pub async fn fetch_next_queue_item(
+        base_url: &String,
+    ) -> Result<reqwest::Response, reqwest::Error> {
+        let client = reqwest::Client::new();
+        let fetch_endpoint = String::from("api/v2/song/queue/next");
+        let api_url = format!("{}/{}", base_url, fetch_endpoint);
+        client.get(api_url).send().await
+    }
+
+    pub mod fetch_song_queue_data {
+        pub async fn get_data(
+            base_url: &String,
+            id: &uuid::Uuid,
+        ) -> Result<reqwest::Response, reqwest::Error> {
+            let client = reqwest::Client::new();
+            let endpoint = String::from("api/v2/song/queue");
+            let api_url = format!("{}/{}/{}", base_url, endpoint, id);
+            client.get(api_url).send().await
+        }
+
+        pub mod response {
+            use futures::StreamExt;
+
+            pub async fn parse_response(
+                response: reqwest::Response,
+            ) -> Result<Vec<u8>, reqwest::Error> {
+                // TODO: At some point, handle the flow if the size is small or
+                // large
+                let mut byte_stream = response.bytes_stream();
+                let mut all_bytes = Vec::new();
+
+                while let Some(chunk) = byte_stream.next().await {
+                    let chunk = chunk?;
+                    all_bytes.extend_from_slice(&chunk);
+                }
+
+                Ok(all_bytes)
+            }
+        }
+    }
+}
+
+async fn get_icarus_url() -> String {
+    dotenvy::dotenv().ok();
+    std::env::var("ICARUS_BASE_API_URL").expect("Could not find url")
 }