Use Convex WS client in desktop chat runtime

This commit is contained in:
rever-tecnologia 2025-12-09 15:31:08 -03:00
parent 988bf25010
commit 1d3580b187
4 changed files with 510 additions and 340 deletions

View file

@ -4,12 +4,13 @@
//! e clientes (Raven desktop). Usa Server-Sent Events (SSE) como metodo
//! primario para atualizacoes em tempo real, com fallback para HTTP polling.
use convex::{ConvexClient, FunctionResult, Value};
use futures_util::StreamExt;
use once_cell::sync::Lazy;
use parking_lot::Mutex;
use reqwest::Client;
use serde::{Deserialize, Serialize};
use serde_json::Value;
use std::collections::BTreeMap;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use std::time::Duration;
@ -58,6 +59,7 @@ pub struct ChatAttachment {
pub mime_type: Option<String>,
}
#[allow(dead_code)]
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ChatPollResponse {
@ -66,6 +68,7 @@ pub struct ChatPollResponse {
pub total_unread: u32,
}
#[allow(dead_code)]
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ChatSessionSummary {
@ -112,6 +115,7 @@ static CHAT_CLIENT: Lazy<Client> = Lazy::new(|| {
// API FUNCTIONS
// ============================================================================
#[allow(dead_code)]
pub async fn poll_chat_updates(
base_url: &str,
token: &str,
@ -399,59 +403,16 @@ pub async fn upload_file(
Ok(data.storage_id)
}
// ============================================================================
// SSE TYPES
// ============================================================================
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
struct SseUpdateEvent {
has_active_sessions: bool,
sessions: Vec<ChatSessionSummary>,
total_unread: u32,
ts: i64,
}
/// Parser de eventos SSE
struct SseEvent {
event: String,
data: String,
}
fn parse_sse_line(buffer: &mut String, line: &str) -> Option<SseEvent> {
if line.starts_with("event:") {
buffer.clear();
let event_type = line.trim_start_matches("event:").trim();
buffer.push_str(event_type);
buffer.push('\0'); // Separador interno
None
} else if line.starts_with("data:") {
let data = line.trim_start_matches("data:").trim();
let parts: Vec<&str> = buffer.split('\0').collect();
let event_type = if parts.len() >= 1 && !parts[0].is_empty() {
parts[0].to_string()
} else {
"message".to_string()
};
Some(SseEvent {
event: event_type,
data: data.to_string(),
})
} else {
None
}
}
// ============================================================================
// CHAT RUNTIME
// ============================================================================
struct ChatPollerHandle {
struct ChatRealtimeHandle {
stop_flag: Arc<AtomicBool>,
join_handle: JoinHandle<()>,
}
impl ChatPollerHandle {
impl ChatRealtimeHandle {
fn stop(self) {
self.stop_flag.store(true, Ordering::Relaxed);
self.join_handle.abort();
@ -460,10 +421,10 @@ impl ChatPollerHandle {
#[derive(Default, Clone)]
pub struct ChatRuntime {
inner: Arc<Mutex<Option<ChatPollerHandle>>>,
inner: Arc<Mutex<Option<ChatRealtimeHandle>>>,
last_sessions: Arc<Mutex<Vec<ChatSession>>>,
last_unread_count: Arc<Mutex<u32>>,
is_using_sse: Arc<AtomicBool>,
is_connected: Arc<AtomicBool>,
}
impl ChatRuntime {
@ -472,20 +433,20 @@ 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_connected: Arc::new(AtomicBool::new(false)),
}
}
/// Retorna true se esta usando SSE, false se usando polling HTTP
/// Retorna true se conexao WS Convex esta ativa
pub fn is_using_sse(&self) -> bool {
self.is_using_sse.load(Ordering::Relaxed)
self.is_connected.load(Ordering::Relaxed)
}
/// Inicia o sistema de atualizacoes de chat.
/// Tenta SSE primeiro, com fallback automatico para HTTP polling.
/// Inicia o sistema de atualizacoes de chat via WebSocket do Convex
pub fn start_polling(
&self,
base_url: String,
convex_url: String,
token: String,
app: tauri::AppHandle,
) -> Result<(), String> {
@ -493,6 +454,10 @@ impl ChatRuntime {
if sanitized_base.is_empty() {
return Err("URL base invalida".to_string());
}
let sanitized_convex = convex_url.trim().trim_end_matches('/').to_string();
if sanitized_convex.is_empty() {
return Err("URL do Convex inválida".to_string());
}
// Para polling/SSE existente
{
@ -505,74 +470,90 @@ impl ChatRuntime {
let stop_flag = Arc::new(AtomicBool::new(false));
let stop_clone = stop_flag.clone();
let base_clone = sanitized_base.clone();
let convex_clone = sanitized_convex.clone();
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_connected = self.is_connected.clone();
let join_handle = tauri::async_runtime::spawn(async move {
crate::log_info!("Chat iniciando (tentando SSE primeiro)");
crate::log_info!("Chat iniciando via Convex WebSocket");
// Loop principal com SSE + fallback para polling
loop {
// Verificar se deve parar
let client_result = ConvexClient::new(&convex_clone).await;
let mut client = match client_result {
Ok(c) => c,
Err(err) => {
crate::log_warn!("Falha ao criar cliente Convex: {err:?}");
return;
}
};
let mut args = BTreeMap::new();
args.insert("machineToken".to_string(), token_clone.clone().into());
let subscribe_result = client.subscribe("liveChat:checkMachineUpdates", args).await;
let mut subscription = match subscribe_result {
Ok(sub) => {
is_connected.store(true, Ordering::Relaxed);
sub
}
Err(err) => {
crate::log_warn!("Falha ao assinar liveChat:checkMachineUpdates: {err:?}");
return;
}
};
while let Some(next) = subscription.next().await {
if stop_clone.load(Ordering::Relaxed) {
crate::log_info!("Chat encerrado");
break;
}
match next {
FunctionResult::Value(Value::Object(obj)) => {
let has_active = obj
.get("hasActiveSessions")
.and_then(|v| match v {
Value::Boolean(b) => Some(*b),
_ => None,
})
.unwrap_or(false);
let total_unread = obj
.get("totalUnread")
.and_then(|v| match v {
Value::Int64(i) => Some(*i as u32),
Value::Float64(f) => Some(*f as u32),
_ => None,
})
.unwrap_or(0);
// Tentar SSE primeiro
let sse_result = run_sse_loop(
&base_clone,
&token_clone,
&app,
&last_sessions,
&last_unread_count,
&is_using_sse,
&stop_clone,
)
.await;
// Verificar se deve parar
if stop_clone.load(Ordering::Relaxed) {
crate::log_info!("Chat encerrado");
break;
}
match sse_result {
Ok(()) => {
// SSE encerrado normalmente (stop signal)
break;
}
Err(e) => {
crate::log_warn!("SSE falhou: {e}. Usando polling HTTP...");
is_using_sse.store(false, Ordering::Relaxed);
// Executar polling HTTP por 5 minutos, depois tentar SSE novamente
let poll_duration = Duration::from_secs(300); // 5 minutos
let poll_result = run_polling_loop(
process_chat_update(
&base_clone,
&token_clone,
&app,
&last_sessions,
&last_unread_count,
&stop_clone,
poll_duration,
has_active,
total_unread,
)
.await;
if poll_result.is_err() || stop_clone.load(Ordering::Relaxed) {
break;
}
crate::log_info!("Tentando reconectar SSE...");
}
FunctionResult::ConvexError(err) => {
crate::log_warn!("Convex error em checkMachineUpdates: {err:?}");
}
FunctionResult::ErrorMessage(msg) => {
crate::log_warn!("Erro em checkMachineUpdates: {msg}");
}
FunctionResult::Value(other) => {
crate::log_warn!("Payload inesperado em checkMachineUpdates: {other:?}");
}
}
}
is_connected.store(false, Ordering::Relaxed);
crate::log_info!("Chat encerrado (Convex WebSocket finalizado)");
});
let mut guard = self.inner.lock();
*guard = Some(ChatPollerHandle {
*guard = Some(ChatRealtimeHandle {
stop_flag,
join_handle,
});
@ -585,7 +566,7 @@ impl ChatRuntime {
if let Some(handle) = guard.take() {
handle.stop();
}
self.is_using_sse.store(false, Ordering::Relaxed);
self.is_connected.store(false, Ordering::Relaxed);
}
pub fn get_sessions(&self) -> Vec<ChatSession> {
@ -593,232 +574,6 @@ impl ChatRuntime {
}
}
// ============================================================================
// SSE LOOP
// ============================================================================
/// Cliente HTTP para SSE com timeout mais longo (conexao persistente)
static SSE_CLIENT: Lazy<Client> = Lazy::new(|| {
Client::builder()
.user_agent("raven-chat-sse/1.0")
.timeout(Duration::from_secs(120)) // Timeout longo para SSE
.connect_timeout(Duration::from_secs(15))
.use_rustls_tls()
.build()
.expect("failed to build SSE http client")
});
async fn run_sse_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>,
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);
// Iniciar request SSE
let response = SSE_CLIENT
.get(&sse_url)
.header("Accept", "text/event-stream")
.header("Cache-Control", "no-cache")
.send()
.await
.map_err(|e| format!("Falha ao conectar SSE: {e}"))?;
if !response.status().is_success() {
let status = response.status();
let body = response.text().await.unwrap_or_default();
return Err(format!("SSE falhou: status={}, body={}", status, body));
}
is_using_sse.store(true, Ordering::Relaxed);
crate::log_info!("SSE conectado com sucesso");
// Stream de bytes
let mut stream = response.bytes_stream();
let mut buffer = String::new();
let mut line_buffer = String::new();
// Timeout para detectar conexao morta (60s sem dados = reconectar)
let mut last_data_time = std::time::Instant::now();
let max_silence = Duration::from_secs(60);
loop {
if stop_flag.load(Ordering::Relaxed) {
crate::log_info!("SSE encerrado por stop flag");
return Ok(());
}
// Verificar timeout de silencio
if last_data_time.elapsed() > max_silence {
crate::log_warn!("SSE: timeout de silencio ({}s sem dados)", max_silence.as_secs());
return Err("SSE timeout - sem dados".to_string());
}
// Aguardar proximo chunk com timeout
let chunk_result = tokio::time::timeout(
Duration::from_secs(35), // Heartbeat do servidor e a cada 30s
stream.next()
).await;
match chunk_result {
Ok(Some(Ok(bytes))) => {
last_data_time = std::time::Instant::now();
let text = String::from_utf8_lossy(&bytes);
line_buffer.push_str(&text);
// Processar linhas completas
while let Some(newline_pos) = line_buffer.find('\n') {
let line = line_buffer[..newline_pos].trim_end_matches('\r').to_string();
line_buffer = line_buffer[newline_pos + 1..].to_string();
// Linha vazia = fim do evento
if line.is_empty() {
buffer.clear();
continue;
}
// Parsear evento SSE
if let Some(event) = parse_sse_line(&mut buffer, &line) {
handle_sse_event(
&event,
base_url,
token,
app,
last_sessions,
last_unread_count,
).await?;
}
}
}
Ok(Some(Err(e))) => {
crate::log_warn!("SSE erro de stream: {e}");
return Err(format!("Erro SSE: {e}"));
}
Ok(None) => {
crate::log_info!("SSE: stream encerrado pelo servidor");
return Err("SSE encerrado".to_string());
}
Err(_) => {
// Timeout aguardando chunk - verificar se conexao ainda viva
if last_data_time.elapsed() > max_silence {
return Err("SSE timeout".to_string());
}
// Caso contrario, continuar aguardando
}
}
}
}
async fn handle_sse_event(
event: &SseEvent,
base_url: &str,
token: &str,
app: &tauri::AppHandle,
last_sessions: &Arc<Mutex<Vec<ChatSession>>>,
last_unread_count: &Arc<Mutex<u32>>,
) -> Result<(), String> {
match event.event.as_str() {
"connected" => {
crate::log_info!("SSE: conectado");
}
"heartbeat" => {
// noop - apenas mantem conexao viva
}
"update" => {
let update: SseUpdateEvent = serde_json::from_str(&event.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 error_data: Value = serde_json::from_str(&event.data).unwrap_or_default();
let message = error_data
.get("message")
.and_then(Value::as_str)
.unwrap_or("Erro SSE");
return Err(message.to_string());
}
_ => {
crate::log_info!("SSE: evento desconhecido {}", event.event);
}
}
Ok(())
}
// ============================================================================
// HTTP POLLING LOOP (FALLBACK)
// ============================================================================
async fn run_polling_loop(
base_url: &str,
token: &str,
app: &tauri::AppHandle,
last_sessions: &Arc<Mutex<Vec<ChatSession>>>,
last_unread_count: &Arc<Mutex<u32>>,
stop_flag: &Arc<AtomicBool>,
max_duration: Duration,
) -> Result<(), String> {
crate::log_info!("Iniciando polling HTTP (fallback)");
let start = std::time::Instant::now();
let poll_interval = Duration::from_secs(1); // 1s para ser mais responsivo
let mut last_checked_at: Option<i64> = None;
loop {
// Verificar se deve parar ou se atingiu duracao maxima
if stop_flag.load(Ordering::Relaxed) {
crate::log_info!("Polling HTTP encerrado por stop flag");
return Ok(());
}
if start.elapsed() >= max_duration {
crate::log_info!("Polling HTTP: duracao maxima atingida");
return Ok(());
}
tokio::time::sleep(poll_interval).await;
// Verificar novamente apos sleep
if stop_flag.load(Ordering::Relaxed) {
return Ok(());
}
match poll_chat_updates(base_url, token, last_checked_at).await {
Ok(result) => {
last_checked_at = Some(chrono::Utc::now().timestamp_millis());
process_chat_update(
base_url,
token,
app,
last_sessions,
last_unread_count,
result.has_active_sessions,
result.total_unread,
)
.await;
}
Err(e) => {
crate::log_warn!("Falha no polling de chat: {e}");
}
}
}
}
// ============================================================================
// SHARED UPDATE PROCESSING
// ============================================================================