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//! Application state holding shared ML models.
use std::sync::Arc;
use tokio::sync::Mutex;
use crate::listen::{DiarizationConfig, ParakeetTDT, Sortformer};
/// Shared application state containing ML models.
///
/// Models are wrapped in `Mutex` for thread-safe mutable access during inference.
pub struct AppState {
/// Speech-to-text model (Parakeet)
pub parakeet: Mutex<ParakeetTDT>,
/// Speaker diarization model (Sortformer)
pub sortformer: Mutex<Sortformer>,
}
impl AppState {
/// Load all ML models from the specified directories.
///
/// # Arguments
/// * `parakeet_model_dir` - Path to the Parakeet STT model directory
/// * `sortformer_model_path` - Path to the Sortformer diarization model file
pub fn new(
parakeet_model_dir: &str,
sortformer_model_path: &str,
) -> Result<Self, Box<dyn std::error::Error + Send + Sync>> {
let parakeet = ParakeetTDT::from_pretrained(parakeet_model_dir, None)?;
let sortformer = Sortformer::with_config(
sortformer_model_path,
None,
DiarizationConfig::callhome(),
)?;
Ok(Self {
parakeet: Mutex::new(parakeet),
sortformer: Mutex::new(sortformer),
})
}
}
/// Type alias for the shared application state.
pub type SharedState = Arc<AppState>;
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