feat(chat): desktop usando Convex WS direto e fallback WS dedicado

This commit is contained in:
esdrasrenan 2025-12-09 01:01:54 -03:00
parent 8db7c3c810
commit a8f5ff9d51
14 changed files with 735 additions and 458 deletions

View file

@ -1,21 +1,23 @@
//! Modulo de Chat em Tempo Real
//!
//! Este modulo implementa o sistema de chat entre agentes (dashboard web)
//! e clientes (Raven desktop). Usa SSE (Server-Sent Events) como metodo
//! e clientes (Raven desktop). Usa WebSocket como metodo
//! primario para atualizacoes em tempo real, com fallback para HTTP polling.
use futures_util::StreamExt;
use futures_util::{StreamExt, SinkExt};
use once_cell::sync::Lazy;
use parking_lot::Mutex;
use reqwest::Client;
use reqwest_eventsource::{Event, EventSource};
use serde::{Deserialize, Serialize};
use serde_json::Value;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use std::time::Duration;
use tauri::async_runtime::JoinHandle;
use tauri::{Emitter, Manager, WebviewWindowBuilder, WebviewUrl};
use tauri_plugin_notification::NotificationExt;
use tokio_tungstenite::{connect_async, tungstenite::protocol::Message};
use url::Url;
// ============================================================================
// TYPES
@ -399,18 +401,24 @@ pub async fn upload_file(
}
// ============================================================================
// SSE (Server-Sent Events) TYPES
// WebSocket TYPES
// ============================================================================
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
struct SseUpdateEvent {
struct WsUpdateEvent {
has_active_sessions: bool,
sessions: Vec<ChatSessionSummary>,
total_unread: u32,
ts: i64,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
struct WsEnvelope {
event: String,
data: serde_json::Value,
}
// ============================================================================
// CHAT RUNTIME
// ============================================================================
@ -432,7 +440,7 @@ pub struct ChatRuntime {
inner: Arc<Mutex<Option<ChatPollerHandle>>>,
last_sessions: Arc<Mutex<Vec<ChatSession>>>,
last_unread_count: Arc<Mutex<u32>>,
is_using_sse: Arc<AtomicBool>,
is_using_ws: Arc<AtomicBool>,
}
impl ChatRuntime {
@ -441,17 +449,17 @@ impl ChatRuntime {
inner: Arc::new(Mutex::new(None)),
last_sessions: Arc::new(Mutex::new(Vec::new())),
last_unread_count: Arc::new(Mutex::new(0)),
is_using_sse: Arc::new(AtomicBool::new(false)),
is_using_ws: Arc::new(AtomicBool::new(false)),
}
}
/// Retorna true se esta usando SSE, false se usando polling HTTP
pub fn is_using_sse(&self) -> bool {
self.is_using_sse.load(Ordering::Relaxed)
/// Retorna true se esta usando WebSocket, false se usando polling HTTP
pub fn is_using_ws(&self) -> bool {
self.is_using_ws.load(Ordering::Relaxed)
}
/// Inicia o sistema de atualizacoes de chat.
/// Tenta SSE primeiro, com fallback automatico para HTTP polling.
/// Tenta WebSocket primeiro, com fallback automatico para HTTP polling.
pub fn start_polling(
&self,
base_url: String,
@ -463,7 +471,7 @@ impl ChatRuntime {
return Err("URL base invalida".to_string());
}
// Para polling/SSE existente
// Para polling/WS existente
{
let mut guard = self.inner.lock();
if let Some(handle) = guard.take() {
@ -477,12 +485,12 @@ impl ChatRuntime {
let token_clone = token.clone();
let last_sessions = self.last_sessions.clone();
let last_unread_count = self.last_unread_count.clone();
let is_using_sse = self.is_using_sse.clone();
let is_using_ws = self.is_using_ws.clone();
let join_handle = tauri::async_runtime::spawn(async move {
crate::log_info!("Chat iniciando (tentando SSE primeiro)");
crate::log_info!("Chat iniciando (tentando WebSocket primeiro)");
// Loop principal com SSE + fallback para polling
// Loop principal com WebSocket + fallback para polling
loop {
// Verificar se deve parar
if stop_clone.load(Ordering::Relaxed) {
@ -490,14 +498,14 @@ impl ChatRuntime {
break;
}
// Tentar SSE primeiro
let sse_result = run_sse_loop(
// Tentar WebSocket primeiro
let ws_result = run_ws_loop(
&base_clone,
&token_clone,
&app,
&last_sessions,
&last_unread_count,
&is_using_sse,
&is_using_ws,
&stop_clone,
)
.await;
@ -508,16 +516,16 @@ impl ChatRuntime {
break;
}
match sse_result {
match ws_result {
Ok(()) => {
// SSE encerrado normalmente (stop signal)
// WS encerrado normalmente (stop signal)
break;
}
Err(e) => {
crate::log_warn!("SSE falhou: {e}. Usando polling HTTP...");
is_using_sse.store(false, Ordering::Relaxed);
crate::log_warn!("WebSocket falhou: {e}. Usando polling HTTP...");
is_using_ws.store(false, Ordering::Relaxed);
// Executar polling HTTP por 5 minutos, depois tentar SSE novamente
// Executar polling HTTP por 5 minutos, depois tentar WebSocket novamente
let poll_duration = Duration::from_secs(300); // 5 minutos
let poll_result = run_polling_loop(
&base_clone,
@ -534,7 +542,7 @@ impl ChatRuntime {
break;
}
crate::log_info!("Tentando reconectar SSE...");
crate::log_info!("Tentando reconectar WebSocket...");
}
}
}
@ -554,7 +562,7 @@ impl ChatRuntime {
if let Some(handle) = guard.take() {
handle.stop();
}
self.is_using_sse.store(false, Ordering::Relaxed);
self.is_using_ws.store(false, Ordering::Relaxed);
}
pub fn get_sessions(&self) -> Vec<ChatSession> {
@ -563,90 +571,138 @@ impl ChatRuntime {
}
// ============================================================================
// SSE LOOP
// WS LOOP
// ============================================================================
async fn run_sse_loop(
async fn run_ws_loop(
base_url: &str,
token: &str,
app: &tauri::AppHandle,
last_sessions: &Arc<Mutex<Vec<ChatSession>>>,
last_unread_count: &Arc<Mutex<u32>>,
is_using_sse: &Arc<AtomicBool>,
is_using_ws: &Arc<AtomicBool>,
stop_flag: &Arc<AtomicBool>,
) -> Result<(), String> {
let sse_url = format!("{}/api/machines/chat/stream?token={}", base_url, token);
crate::log_info!("Conectando SSE: {}", sse_url);
let ws_url = build_ws_url(base_url, token)?;
crate::log_info!("Conectando WebSocket: {}", ws_url);
let request = CHAT_CLIENT.get(&sse_url);
let mut es = EventSource::new(request).map_err(|e| format!("Falha ao criar EventSource: {e}"))?;
let (ws_stream, _) = connect_async(ws_url)
.await
.map_err(|e| format!("Falha ao conectar WebSocket: {e}"))?;
let (mut write, mut read) = ws_stream.split();
is_using_sse.store(true, Ordering::Relaxed);
crate::log_info!("SSE conectado com sucesso");
// Ativar ping periódico para manter conexão viva
let mut heartbeat = tokio::time::interval(Duration::from_secs(45));
is_using_ws.store(true, Ordering::Relaxed);
crate::log_info!("WebSocket conectado com sucesso");
loop {
// Verificar stop flag periodicamente
if stop_flag.load(Ordering::Relaxed) {
crate::log_info!("SSE encerrado por stop flag");
crate::log_info!("WebSocket encerrado por stop flag");
let _ = write.send(Message::Close(None)).await;
return Ok(());
}
// Usar timeout para poder verificar stop flag
let event = tokio::time::timeout(Duration::from_secs(1), es.next()).await;
match event {
Ok(Some(Ok(Event::Open))) => {
crate::log_info!("SSE: conexao aberta");
tokio::select! {
_ = heartbeat.tick() => {
let _ = write.send(Message::Ping(Vec::new())).await;
}
Ok(Some(Ok(Event::Message(msg)))) => {
let event_type = msg.event.as_str();
match event_type {
"connected" => {
crate::log_info!("SSE: evento connected recebido");
}
"heartbeat" => {
// Ignorar heartbeats silenciosamente
}
"update" => {
// Processar update de chat
if let Ok(update) = serde_json::from_str::<SseUpdateEvent>(&msg.data) {
process_chat_update(
msg = read.next() => {
match msg {
Some(Ok(Message::Text(text))) => {
if let Ok(parsed) = serde_json::from_str::<WsEnvelope>(&text) {
handle_ws_event(
parsed,
base_url,
token,
app,
last_sessions,
last_unread_count,
update.has_active_sessions,
update.total_unread,
)
.await;
).await?;
} else {
crate::log_warn!("WebSocket: payload inválido");
}
}
"error" => {
crate::log_warn!("SSE: erro recebido do servidor: {}", msg.data);
return Err(format!("Erro SSE do servidor: {}", msg.data));
Some(Ok(Message::Close(_))) => {
crate::log_info!("WebSocket: conexão encerrada pelo servidor");
return Err("WebSocket fechado pelo servidor".to_string());
}
_ => {
crate::log_info!("SSE: evento desconhecido: {}", event_type);
Some(Ok(_)) => {
// Ignorar outros frames
}
Some(Err(e)) => {
crate::log_warn!("WebSocket erro: {e}");
return Err(format!("Erro WebSocket: {e}"));
}
None => {
crate::log_info!("WebSocket: stream encerrado");
return Err("WebSocket encerrado".to_string());
}
}
}
Ok(Some(Err(e))) => {
crate::log_warn!("SSE erro: {e}");
return Err(format!("Erro SSE: {e}"));
}
Ok(None) => {
crate::log_info!("SSE: stream encerrado");
return Err("Stream SSE encerrado".to_string());
}
Err(_) => {
// Timeout - continuar loop para verificar stop flag
}
}
}
}
fn build_ws_url(base_url: &str, token: &str) -> Result<Url, String> {
let trimmed = base_url.trim_end_matches('/');
let mut ws_url = if trimmed.starts_with("https://") {
trimmed.replacen("https://", "wss://", 1)
} else if trimmed.starts_with("http://") {
trimmed.replacen("http://", "ws://", 1)
} else {
format!("wss://{}", trimmed)
};
ws_url.push_str("/chat-ws?token=");
ws_url.push_str(token);
Url::parse(&ws_url).map_err(|e| format!("URL WS inválida: {e}"))
}
async fn handle_ws_event(
envelope: WsEnvelope,
base_url: &str,
token: &str,
app: &tauri::AppHandle,
last_sessions: &Arc<Mutex<Vec<ChatSession>>>,
last_unread_count: &Arc<Mutex<u32>>,
) -> Result<(), String> {
match envelope.event.as_str() {
"connected" => {
crate::log_info!("WebSocket: conectado");
}
"heartbeat" => {
// noop
}
"update" => {
let update: WsUpdateEvent = serde_json::from_value(envelope.data)
.map_err(|e| format!("Payload update inválido: {e}"))?;
process_chat_update(
base_url,
token,
app,
last_sessions,
last_unread_count,
update.has_active_sessions,
update.total_unread,
)
.await;
}
"error" => {
let message = envelope
.data
.get("message")
.and_then(Value::as_str)
.unwrap_or("Erro WebSocket");
return Err(message.to_string());
}
_ => {
crate::log_info!("WebSocket: evento desconhecido {}", envelope.event);
}
}
Ok(())
}
// ============================================================================
// HTTP POLLING LOOP (FALLBACK)
// ============================================================================