refactor: extract telemetry init to telemetry.rs

k-tv-backend/api/src/main.rs

@@ -2,17 +2,14 @@
 //!
 //! Configures and starts the HTTP server with JWT-based authentication.
 
-use std::collections::VecDeque;
 use std::net::SocketAddr;
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
 use std::time::Duration as StdDuration;
 
 use axum::Router;
 use axum::http::{HeaderName, HeaderValue};
-use tokio::sync::broadcast;
 use tower_http::cors::{AllowHeaders, AllowMethods, AllowOrigin, CorsLayer};
 use tracing::info;
-use tracing_subscriber::{EnvFilter, fmt, layer::SubscriberExt, util::SubscriberInitExt};
 
 use domain::{ChannelService, IMediaProvider, IProviderRegistry, ProviderCapabilities, ScheduleEngineService, StreamingProtocol, UserService};
 use infra::factory::{build_activity_log_repository, build_channel_repository, build_provider_config_repository, build_schedule_repository, build_user_repository};
@@ -32,6 +29,7 @@ mod poller;
 mod routes;
 mod scheduler;
 mod state;
+mod telemetry;
 mod webhook;
 
 use crate::config::{Config, ConfigSource};
@@ -39,16 +37,7 @@ use crate::state::AppState;
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
-    // Set up broadcast channel + ring buffer for SSE log streaming.
-    let (log_tx, _) = broadcast::channel::<log_layer::LogLine>(512);
-    let log_history = Arc::new(Mutex::new(VecDeque::<log_layer::LogLine>::new()));
-
-    // Initialize tracing with our custom layer in addition to the fmt layer.
-    tracing_subscriber::registry()
-        .with(EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("info")))
-        .with(fmt::layer())
-        .with(log_layer::AppLogLayer::new(log_tx.clone(), Arc::clone(&log_history)))
-        .init();
+    let handles = telemetry::init_tracing();
 
     let config = Config::from_env();
 
@@ -246,8 +235,8 @@ async fn main() -> anyhow::Result<()> {
         provider_config_repo,
         config.clone(),
         event_tx.clone(),
-        log_tx,
-        log_history,
+        handles.log_tx,
+        handles.log_history,
         activity_log_repo,
         db_pool,
         #[cfg(feature = "local-files")]

k-tv-backend/api/src/telemetry.rs

@@ -0,0 +1,25 @@
+use std::collections::VecDeque;
+use std::sync::{Arc, Mutex};
+
+use tokio::sync::broadcast;
+use tracing_subscriber::{EnvFilter, fmt, layer::SubscriberExt, util::SubscriberInitExt};
+
+use crate::log_layer::{AppLogLayer, LogLine};
+
+pub struct LoggingHandles {
+    pub log_tx: broadcast::Sender<LogLine>,
+    pub log_history: Arc<Mutex<VecDeque<LogLine>>>,
+}
+
+pub fn init_tracing() -> LoggingHandles {
+    let (log_tx, _) = broadcast::channel::<LogLine>(512);
+    let log_history = Arc::new(Mutex::new(VecDeque::<LogLine>::new()));
+
+    tracing_subscriber::registry()
+        .with(EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("info")))
+        .with(fmt::layer())
+        .with(AppLogLayer::new(log_tx.clone(), Arc::clone(&log_history)))
+        .init();
+
+    LoggingHandles { log_tx, log_history }
+}