use futures_util::{SinkExt, StreamExt};
use serde_json::json;
use tokio_tungstenite::connect_async;
use std::time::Duration;

async fn ws_available(url: &str) -> bool {
    match connect_async(url).await {
        Ok((_ws, _)) => true,
        Err(_) => false,
    }
}
async fn http_healthy() -> bool {
    let base = std::env::var("SDK_RELAY_HTTP").unwrap_or_else(|_| "http://localhost:8091".to_string());
    let client = match reqwest::Client::builder().timeout(Duration::from_millis(500)).build() {
        Ok(c) => c,
        Err(_) => return false,
    };
    match client.get(format!("{}/health", base)).send().await {
        Ok(resp) => resp.status().is_success(),
        Err(_) => false,
    }
}

#[tokio::test]
async fn websocket_handshake_should_be_accepted() {
    let url = std::env::var("SDK_RELAY_WS").unwrap_or_else(|_| "ws://localhost:8090".to_string());
    if !http_healthy().await || !ws_available(&url).await {
        eprintln!("sdk_relay WS indisponible, test handshake ignoré");
        return;
    }

    let (mut ws, _resp) = connect_async(url).await.expect("cannot connect ws");

    let handshake = json!({
        "type": "handshake",
        "client_id": "test-client",
        "version": "1.0.0",
        "capabilities": ["sync", "notifications", "health"],
        "timestamp": 1703001600u64
    })
    .to_string();

    ws.send(tokio_tungstenite::tungstenite::Message::Text(handshake))
        .await
        .expect("cannot send handshake");

    let msg = ws.next().await.expect("no response").expect("ws error");
    let txt = msg.into_text().expect("not text");
    let json: serde_json::Value = serde_json::from_str(&txt).expect("invalid json");

    assert_eq!(json.get("type").and_then(|v| v.as_str()).unwrap_or(""), "handshake_response");
    assert_eq!(json.get("status").and_then(|v| v.as_str()).unwrap_or(""), "accepted");
}