//! RustyTorch++ Serving API — entry point
//!
//! Starts the HTTP serving API with model inference, health checks,
//! and cache management endpoints.
//!
//! Usage:
//!   cargo run -p rtx-serving-api
//!   cargo run -p rtx-serving-api -- --port 8080 --host 0.0.0.0

use rtx_serving_api::{ServerConfig, ServingServer};

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    // Initialize tracing
    tracing_subscriber::fmt().init();

    // Load config from environment
    let host = std::env::var("RTX_HOST").unwrap_or_else(|_| "127.0.0.1".to_string());
    let port: u16 = std::env::var("RTX_PORT")
        .ok()
        .and_then(|p| p.parse().ok())
        .unwrap_or(8080);
    let timeout: u64 = std::env::var("RTX_TIMEOUT")
        .ok()
        .and_then(|t| t.parse().ok())
        .unwrap_or(30);

    let config = ServerConfig {
        host,
        port,
        timeout_seconds: timeout,
    };

    tracing::info!("╔════════════════════════════════════════════╗");
    tracing::info!("║   RustyTorch++ Serving API                 ║");
    tracing::info!("║   Port: {}                              ║", config.port);
    tracing::info!("╚════════════════════════════════════════════╝");

    let server = ServingServer::new(config);
    server.serve().await.map_err(|e| anyhow::anyhow!("{}", e))?;

    Ok(())
}