dumb callbacks work

src/main.rs

@@ -40,6 +40,12 @@ fn main() {
       flags.stream_head,
       flags.stream_tail,
       new_handler(),
+      |result| {
+         match result {
+            Ok(whispered) => { println!("{}", whispered.to_string()); },
+            Err(msg) => { eprintln!("Error whispering: {}", msg); },
+         };
+      },
    ).unwrap();
    let stream_retain = (flags.stream_retain * 16_000.0) as usize;
    let stream_step = Duration::new(flags.stream_step, 0);
@@ -96,10 +102,10 @@ struct WhisperService {
    jobs: std::sync::mpsc::SyncSender<AWhisper>,
 }
 
-fn new_whisper_service(model_path: String, threads: i32, stream_head: f32, stream_tail: f32, handler: Handler) -> Result<WhisperService, String> {
+fn new_whisper_service(model_path: String, threads: i32, stream_head: f32, stream_tail: f32, handler: Handler, handler_fn: fn(Result<&Whispered, String>)) -> Result<WhisperService, String> {
    match new_whisper_engine(model_path, threads) {
       Ok(engine) => {
-         let whisper = new_whisper_impl(engine, stream_head, stream_tail, handler);
+         let whisper = new_whisper_impl(engine, stream_head, stream_tail, handler, handler_fn);
          let (send, recv) = std::sync::mpsc::sync_channel(100);
          thread::spawn(move || { whisper.transcribe_asyncs(recv); });
          Ok(WhisperService{jobs: send})
@@ -135,14 +141,16 @@ struct WhisperImpl {
    stream_head: f32,
    stream_tail: f32,
    handler: Handler,
+   handler_fn: fn(Result<&Whispered, String>),
 }
 
-fn new_whisper_impl(engine: WhisperEngine, stream_head: f32, stream_tail: f32, handler: Handler) -> WhisperImpl {
+fn new_whisper_impl(engine: WhisperEngine, stream_head: f32, stream_tail: f32, handler: Handler, handler_fn: fn(Result<&Whispered, String>)) -> WhisperImpl {
    WhisperImpl {
       engine: engine,
       stream_head: stream_head,
       stream_tail: stream_tail,
       handler: handler,
+      handler_fn: handler_fn,
    }
 }
 
@@ -178,16 +186,16 @@ impl WhisperImpl {
    }
 
    fn on_success(&self, whispered: &Whispered) {
-      eprintln!("{}: {:?}", chrono::Local::now(), whispered);
-      self.handler.on_success(
-         &whispered
+      let result = whispered
          .after(&(self.stream_head * 100.0))
-            .before(&(self.stream_tail * 100.0)),
-      );
+         .before(&(self.stream_tail * 100.0));
+      (self.handler_fn)(Ok(&result));
+      self.handler.on_success(&result);
    }
 
    fn on_error(&self, msg: String) {
       self.handler.on_error(format!("failed to transcribe: {}", &msg));
+      (self.handler_fn)(Err(format!("failed to transcribe: {}", &msg)));
    }
 }