x0x 0.19.47

//! Presence CLI commands — wrappers around the `/presence/*` REST endpoints.

use crate::cli::{print_value, DaemonClient};
use anyhow::Result;

/// `x0x presence online` — GET /presence/online
///
/// Lists all online agents from the local discovery cache (network view:
/// includes all non-blocked agents).
pub async fn online(client: &DaemonClient) -> Result<()> {
    client.ensure_running().await?;
    let resp = client.get("/presence/online").await?;
    print_value(client.format(), &resp);
    Ok(())
}

/// `x0x presence foaf` — GET /presence/foaf?ttl=N&timeout_ms=N
///
/// Performs a FOAF random-walk query and returns the social view (Trusted +
/// Known contacts only).
pub async fn foaf(client: &DaemonClient, ttl: u8, timeout_ms: u64) -> Result<()> {
    client.ensure_running().await?;
    let ttl_str = ttl.to_string();
    let timeout_str = timeout_ms.to_string();
    let resp = client
        .get_query(
            "/presence/foaf",
            &[("ttl", &ttl_str), ("timeout_ms", &timeout_str)],
        )
        .await?;
    print_value(client.format(), &resp);
    Ok(())
}

/// `x0x presence find <id>` — GET /presence/find/:id
///
/// Locates a specific agent by hex-encoded AgentId via FOAF random walk.
pub async fn find(client: &DaemonClient, id: &str, ttl: u8, timeout_ms: u64) -> Result<()> {
    client.ensure_running().await?;
    let ttl_str = ttl.to_string();
    let timeout_str = timeout_ms.to_string();
    let resp = client
        .get_query(
            &format!("/presence/find/{id}"),
            &[("ttl", &ttl_str), ("timeout_ms", &timeout_str)],
        )
        .await?;
    print_value(client.format(), &resp);
    Ok(())
}

/// `x0x presence status <id>` — GET /presence/status/:id
///
/// Checks local cache for an agent by hex-encoded AgentId. No network I/O.
pub async fn status(client: &DaemonClient, id: &str) -> Result<()> {
    client.ensure_running().await?;
    let resp = client.get(&format!("/presence/status/{id}")).await?;
    print_value(client.format(), &resp);
    Ok(())
}

/// `x0x presence events` — GET /presence/events (SSE stream).
///
/// Streams presence online/offline events as they happen. Each line on
/// stdout is a raw SSE event from the daemon. The command runs until
/// the daemon closes the stream or the user presses Ctrl+C.
pub async fn events(client: &DaemonClient) -> Result<()> {
    use futures::StreamExt as _;
    client.ensure_running().await?;
    let resp = client.get_stream("/presence/events").await?;
    let mut stream = resp.bytes_stream();
    while let Some(chunk) = stream.next().await {
        let bytes = chunk.map_err(|e| anyhow::anyhow!("stream error: {e}"))?;
        let s = String::from_utf8_lossy(&bytes);
        print!("{s}");
    }
    Ok(())
}

#[cfg(test)]
mod tests {
    #![allow(clippy::unwrap_used)]
    use super::*;
    use crate::cli::DaemonClient;

    /// Start a mock axum server that returns the given JSON for any request.
    #[allow(dead_code)]
    async fn start_mock_server(
        response_json: serde_json::Value,
    ) -> (String, tokio::sync::oneshot::Sender<()>) {
        use std::sync::Arc;

        let json = Arc::new(response_json);
        let app = axum::Router::new().fallback(move |_req: axum::extract::Request| {
            let json = Arc::clone(&json);
            async move {
                let body = serde_json::to_vec(&*json).unwrap();
                axum::response::Response::builder()
                    .status(200)
                    .header("content-type", "application/json")
                    .body(axum::body::Body::from(body))
                    .unwrap()
            }
        });

        let listener = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
        let addr = listener.local_addr().unwrap();
        let (tx, rx) = tokio::sync::oneshot::channel::<()>();

        tokio::spawn(async move {
            axum::serve(listener, app.into_make_service())
                .with_graceful_shutdown(async {
                    rx.await.ok();
                })
                .await
                .ok();
        });

        tokio::time::sleep(std::time::Duration::from_millis(50)).await;

        (format!("http://{}", addr), tx)
    }

    #[tokio::test]
    async fn online_returns_mock_response() {
        let mock_resp = serde_json::json!({"agents": [{"agent_id": "abc123", "online": true}]});
        let (url, _shutdown) = start_mock_server(mock_resp).await;
        let client = DaemonClient::new(None, Some(&url), crate::cli::OutputFormat::Json).unwrap();
        let result = online(&client).await;
        assert!(result.is_ok(), "online should succeed: {:?}", result);
    }
    #[tokio::test]
    async fn status_returns_mock_response() {
        let mock_resp = serde_json::json!({"agents": [{"agent_id": "abc123", "online": true}]});
        let (url, _shutdown) = start_mock_server(mock_resp).await;
        let client = DaemonClient::new(None, Some(&url), crate::cli::OutputFormat::Json).unwrap();
        let result = status(&client, "abc123").await;
        assert!(result.is_ok(), "status should succeed: {:?}", result);
    }
}