checkpoint before render engine vendoring

Signed-off-by: Sienna Meridian Satterwhite <sienna@r3t.io>

crates/app/src/main.rs

@@ -4,10 +4,12 @@
 
 use bevy::prelude::*;
 use libmarathon::{
-    engine::{EngineBridge, EngineCore},
+    engine::{
+        EngineBridge,
+        EngineCore,
+    },
     persistence::PersistenceConfig,
 };
-use std::path::PathBuf;
 
 mod camera;
 mod cube;
@@ -32,56 +34,102 @@ use session::*;
 use session_ui::*;
 
 fn main() {
+    // Note: eprintln doesn't work on iOS, but tracing-oslog will once initialized
+    eprintln!(">>> RUST ENTRY: main() started");
+
     // Initialize logging
-    tracing_subscriber::fmt()
-        .with_env_filter(
-            tracing_subscriber::EnvFilter::from_default_env()
-                .add_directive("wgpu=error".parse().unwrap())
-                .add_directive("naga=warn".parse().unwrap()),
-        )
-        .init();
+    eprintln!(">>> Initializing tracing_subscriber");
+
+    #[cfg(target_os = "ios")]
+    {
+        use tracing_subscriber::prelude::*;
+
+        let filter = tracing_subscriber::EnvFilter::builder()
+            .with_default_directive(tracing::Level::DEBUG.into())
+            .from_env_lossy()
+            .add_directive("wgpu=error".parse().unwrap())
+            .add_directive("naga=warn".parse().unwrap())
+            .add_directive("winit=error".parse().unwrap());
+
+        tracing_subscriber::registry()
+            .with(filter)
+            .with(tracing_oslog::OsLogger::new("io.r3t.aspen", "default"))
+            .init();
+
+        info!("OSLog initialized successfully");
+    }
+
+    #[cfg(not(target_os = "ios"))]
+    {
+        tracing_subscriber::fmt()
+            .with_env_filter(
+                tracing_subscriber::EnvFilter::from_default_env()
+                    .add_directive("wgpu=error".parse().unwrap())
+                    .add_directive("naga=warn".parse().unwrap()),
+            )
+            .init();
+    }
+
+    eprintln!(">>> Tracing subscriber initialized");
 
     // Application configuration
     const APP_NAME: &str = "Aspen";
 
     // Get platform-appropriate database path
+    eprintln!(">>> Getting database path");
     let db_path = libmarathon::platform::get_database_path(APP_NAME);
     let db_path_str = db_path.to_str().unwrap().to_string();
     info!("Database path: {}", db_path_str);
+    eprintln!(">>> Database path: {}", db_path_str);
 
     // Create EngineBridge (for communication between Bevy and EngineCore)
+    eprintln!(">>> Creating EngineBridge");
     let (engine_bridge, engine_handle) = EngineBridge::new();
     info!("EngineBridge created");
+    eprintln!(">>> EngineBridge created");
 
     // Spawn EngineCore on tokio runtime (runs in background thread)
+    eprintln!(">>> Spawning EngineCore background thread");
     std::thread::spawn(move || {
+        eprintln!(">>> [EngineCore thread] Thread started");
         info!("Starting EngineCore on tokio runtime...");
+        eprintln!(">>> [EngineCore thread] Creating tokio runtime");
         let rt = tokio::runtime::Runtime::new().unwrap();
+        eprintln!(">>> [EngineCore thread] Tokio runtime created");
         rt.block_on(async {
+            eprintln!(">>> [EngineCore thread] Creating EngineCore");
             let core = EngineCore::new(engine_handle, &db_path_str);
+            eprintln!(">>> [EngineCore thread] Running EngineCore");
             core.run().await;
         });
     });
     info!("EngineCore spawned in background");
+    eprintln!(">>> EngineCore thread spawned");
 
     // Create Bevy app (without winit - we own the event loop)
+    eprintln!(">>> Creating Bevy App");
     let mut app = App::new();
+    eprintln!(">>> Bevy App created");
 
     // Insert EngineBridge as a resource for Bevy systems to use
+    eprintln!(">>> Inserting EngineBridge resource");
     app.insert_resource(engine_bridge);
 
     // Use DefaultPlugins but disable winit/window/input (we own those)
+    eprintln!(">>> Adding DefaultPlugins");
     app.add_plugins(
         DefaultPlugins
             .build()
-            .disable::<bevy::log::LogPlugin>()  // Using tracing-subscriber
-            .disable::<bevy::winit::WinitPlugin>()  // We own winit
-            .disable::<bevy::window::WindowPlugin>()  // We own the window
-            .disable::<bevy::input::InputPlugin>()  // We provide InputEvents directly
-            .disable::<bevy::gilrs::GilrsPlugin>()  // We handle gamepad input ourselves
+            .disable::<bevy::log::LogPlugin>() // Using tracing-subscriber
+            .disable::<bevy::winit::WinitPlugin>() // We own winit
+            .disable::<bevy::window::WindowPlugin>() // We own the window
+            .disable::<bevy::input::InputPlugin>() // We provide InputEvents directly
+            .disable::<bevy::gilrs::GilrsPlugin>(), // We handle gamepad input ourselves
     );
+    eprintln!(">>> DefaultPlugins added");
 
     // Marathon core plugins (networking, debug UI, persistence)
+    eprintln!(">>> Adding MarathonPlugin");
     app.add_plugins(libmarathon::MarathonPlugin::new(
         APP_NAME,
         PersistenceConfig {
@@ -91,8 +139,10 @@ fn main() {
             ..Default::default()
         },
     ));
+    eprintln!(">>> MarathonPlugin added");
 
     // App-specific bridge for polling engine events
+    eprintln!(">>> Adding app plugins");
     app.add_plugins(EngineBridgePlugin);
     app.add_plugins(CameraPlugin);
     app.add_plugins(RenderingPlugin);
@@ -102,6 +152,9 @@ fn main() {
     app.add_plugins(DebugUiPlugin);
     app.add_plugins(SessionUiPlugin);
     app.add_systems(Startup, initialize_offline_resources);
+    eprintln!(">>> All plugins added");
 
+    eprintln!(">>> Running executor");
     libmarathon::platform::run_executor(app).expect("Failed to run executor");
+    eprintln!(">>> Executor returned (should never reach here)");
 }