sunox 0.0.8

Generate AI music from your terminal via direct Suno web workflows
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use std::time::Duration;

use futures_util::{SinkExt, StreamExt};
use serde::Serialize;
use tokio::time::timeout;
use tokio_tungstenite::tungstenite::Message;

use crate::core::CliError;

#[derive(Serialize)]
struct CdpRequest<'a> {
    id: u64,
    method: &'a str,
    params: serde_json::Value,
}

type CdpStream =
    tokio_tungstenite::WebSocketStream<tokio_tungstenite::MaybeTlsStream<tokio::net::TcpStream>>;

pub(super) struct CdpSession {
    ws: CdpStream,
    next_id: u64,
}

impl CdpSession {
    pub(super) async fn connect(ws_url: &str) -> Result<Self, CliError> {
        let (ws, _) = tokio_tungstenite::connect_async(ws_url)
            .await
            .map_err(|e| CliError::Config(format!("CDP ws connect: {e}")))?;

        Ok(Self { ws, next_id: 0 })
    }

    pub(super) async fn call(
        &mut self,
        method: &str,
        params: serde_json::Value,
    ) -> Result<serde_json::Value, CliError> {
        self.next_id += 1;
        let id = self.next_id;
        let req = CdpRequest { id, method, params };
        let payload = serde_json::to_string(&req).unwrap();

        self.ws
            .send(Message::Text(payload))
            .await
            .map_err(|e| CliError::Config(format!("CDP ws send {method}: {e}")))?;

        loop {
            let msg = timeout(Duration::from_secs(60), self.ws.next())
                .await
                .map_err(|_| CliError::Config(format!("CDP {method} timeout")))?
                .ok_or_else(|| CliError::Config(format!("CDP {method} ws closed")))?
                .map_err(|e| CliError::Config(format!("CDP {method} ws err: {e}")))?;

            let text = match msg {
                Message::Text(text) => text.to_string(),
                Message::Binary(_) | Message::Ping(_) | Message::Pong(_) | Message::Frame(_) => {
                    continue;
                }
                Message::Close(_) => {
                    return Err(CliError::Config(format!("CDP {method} ws closed mid-call")));
                }
            };

            let value: serde_json::Value = serde_json::from_str(&text)
                .map_err(|e| CliError::Config(format!("CDP {method} json: {e}")))?;
            if value.get("id").and_then(|id| id.as_u64()) == Some(id) {
                if let Some(err) = value.get("error") {
                    return Err(CliError::Config(format!("CDP {method} error: {err}")));
                }
                return Ok(value
                    .get("result")
                    .cloned()
                    .unwrap_or(serde_json::Value::Null));
            }
        }
    }
}