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use std::sync::Arc;
use tokio::sync::mpsc;
use tracing::{debug, error, info, warn};
use crate::{
agent::{AgentMessage, AgentRegistry},
channel::{Channel, OutboundMessage},
config::runtime::RuntimeConfig,
gateway::session::{MessageKind, SessionKeyParams, derive_session_key},
};
use super::super::preparse::{
btw_direct_call, is_fast_preparse, try_preparse_locally,
};
use super::default_dm_scope;
pub(crate) fn start_zalo_if_configured(
config: &RuntimeConfig,
registry: Arc<AgentRegistry>,
manager: &mut crate::channel::ChannelManager,
zalo_slot: Arc<tokio::sync::OnceCell<Arc<crate::channel::zalo::ZaloChannel>>>,
dm_enforcers: Arc<
std::sync::RwLock<std::collections::HashMap<String, Arc<crate::channel::DmPolicyEnforcer>>>,
>,
redb_store: Arc<crate::store::redb_store::RedbStore>,
channel_senders: Arc<
std::sync::RwLock<std::collections::HashMap<String, mpsc::Sender<OutboundMessage>>>,
>,
task_queue: Arc<crate::gateway::task_queue::TaskQueueManager>,
) {
use crate::channel::zalo::ZaloChannel;
let Some(zalo_cfg) = &config.channel.channels.zalo else {
return;
};
if !zalo_cfg.base.enabled.unwrap_or(true) {
return;
}
// Load dmPolicy from config (Zalo is DM-only, no group policy needed).
let dm_policy = zalo_cfg
.base
.dm_policy
.clone()
.unwrap_or(crate::config::schema::DmPolicy::Pairing);
let allow_from: Vec<String> = zalo_cfg.base.allow_from.clone().unwrap_or_default();
let enforcer = Arc::new(
crate::channel::DmPolicyEnforcer::new(dm_policy, allow_from)
.with_persistence("zalo", Arc::clone(&redb_store)),
);
if let Ok(mut enforcers) = dm_enforcers.write() {
enforcers.insert("zalo".to_owned(), Arc::clone(&enforcer));
}
// Collect (account_name, access_token) pairs.
let mut zalo_accounts: Vec<(String, String)> = Vec::new();
// Legacy: single token at top level.
if let Some(token) = zalo_cfg
.access_token
.as_ref()
.and_then(|t| t.as_plain())
.map(str::to_owned)
.or_else(|| std::env::var("ZALO_ACCESS_TOKEN").ok())
{
zalo_accounts.push(("default".to_owned(), token));
}
// Multi-account: channels.zalo.accounts.<name>.accessToken
if let Some(accts) = &zalo_cfg.accounts {
for (name, acct) in accts {
if let Some(t) = acct.get("accessToken").and_then(|v| v.as_str()) {
if !zalo_accounts.iter().any(|(_, et)| et == t) {
zalo_accounts.push((name.clone(), t.to_owned()));
}
}
}
}
if zalo_accounts.is_empty() {
warn!("ZALO access_token not set, zalo disabled");
return;
}
for (acct_name, access_token) in zalo_accounts {
let acct_for_log = acct_name.clone();
let enforcer = Arc::clone(&enforcer);
let reg = Arc::clone(®istry);
let cfg_arc = Arc::new(config.clone());
let (out_tx, mut out_rx) = mpsc::channel::<OutboundMessage>(64);
// Register Zalo channel sender for notification routing.
{
let mut senders = channel_senders.write().expect("channel_senders lock poisoned");
senders.insert("zalo".to_string(), out_tx.clone());
senders.insert(format!("zalo/{}", acct_name), out_tx.clone());
}
let tq = Arc::clone(&task_queue);
// Per-user inbound queue for Zalo.
type ZaloItem = (String, String, Vec<crate::agent::registry::ImageAttachment>);
let zalo_user_queues: Arc<
tokio::sync::Mutex<std::collections::HashMap<String, mpsc::Sender<ZaloItem>>>,
> = Arc::new(tokio::sync::Mutex::new(std::collections::HashMap::new()));
let on_message = Arc::new(
move |sender_id: String,
text: String,
images: Vec<crate::agent::registry::ImageAttachment>| {
let reg = Arc::clone(®);
let cfg = Arc::clone(&cfg_arc);
let tx = out_tx.clone();
let enforcer = Arc::clone(&enforcer);
let queues = Arc::clone(&zalo_user_queues);
let tq = Arc::clone(&tq);
tokio::spawn(async move {
// DM policy check (Zalo is DM-only).
{
use crate::channel::PolicyResult;
match enforcer.check(&sender_id).await {
PolicyResult::Allow => {}
PolicyResult::Deny => {
warn!(peer_id = %sender_id, "zalo DM rejected by policy");
return;
}
PolicyResult::SendPairingCode(code) => {
if let Err(e) = tx
.send(OutboundMessage {
target_id: sender_id.clone(),
is_group: false,
text: crate::i18n::t_fmt(
"pairing_required",
crate::i18n::default_lang(),
&[("code", &code)],
),
reply_to: None,
images: vec![],
channel: None,
account: None,
files: vec![], })
.await
{
tracing::warn!("failed to send message: {e}");
}
return;
}
PolicyResult::PairingQueueFull => {
if let Err(e) = tx
.send(OutboundMessage {
target_id: sender_id.clone(),
is_group: false,
text: crate::i18n::t(
"pairing_queue_full",
crate::i18n::default_lang(),
)
.to_owned(),
reply_to: None,
images: vec![],
channel: None,
account: None,
files: vec![], })
.await
{
tracing::warn!("failed to send message: {e}");
}
return;
}
}
}
// Get or create a per-user queue.
let user_tx = {
let mut map = queues.lock().await;
let needs_create = match map.get(&sender_id) {
Some(existing) if !existing.is_closed() => false,
Some(_) => {
map.remove(&sender_id);
true
}
None => true,
};
if needs_create {
let (utx, mut urx) = mpsc::channel::<ZaloItem>(32);
map.insert(sender_id.clone(), utx.clone());
let w_reg = Arc::clone(®);
let w_cfg = Arc::clone(&cfg);
let w_uid = sender_id.clone();
let w_tq = Arc::clone(&tq);
tokio::spawn(async move {
while let Some((text, sender_id, images)) = urx.recv().await {
// No debounce — task queue merge_into_pending
// handles rapid consecutive messages automatically.
let handle = match w_reg.route("zalo") {
Ok(h) => h,
Err(e) => { error!("zalo route: {e:#}"); continue; }
};
let dm_scope = default_dm_scope(&w_cfg);
let session_key = derive_session_key(&SessionKeyParams {
agent_id: handle.id.clone(),
kind: MessageKind::DirectMessage { account_id: None },
channel: "zalo".to_string(),
peer_id: sender_id.clone(),
dm_scope,
});
let qmsg = crate::gateway::task_queue::QueuedMessage {
text,
sender: sender_id.clone(),
channel: "zalo".to_string(),
chat_id: String::new(),
is_group: false,
reply_to: None,
timestamp: chrono::Utc::now().timestamp(),
images: images.iter().map(|i| i.data.clone()).collect(),
files: vec![],
account: None,
};
if let Err(e) = w_tq.submit(&session_key, qmsg, crate::gateway::task_queue::Priority::User) {
error!(user = %w_uid, "zalo: queue submit failed: {e:#}");
}
}
debug!(user = %w_uid, "zalo: per-user worker stopped");
});
utx
} else {
map.get(&sender_id).expect("queue entry must exist").clone()
}
};
// /btw bypass: spawn directly, skip the per-user queue
if text.starts_with("/btw ") || text.starts_with("/BTW ") {
let reg = Arc::clone(®);
let tx = tx.clone();
let cfg = Arc::clone(&cfg);
let question = text[5..].to_owned();
let sender_id = sender_id.clone();
tokio::spawn(async move {
let handle = match reg.route("zalo") {
Ok(h) => h,
Err(_) => return,
};
if let Some(reply_text) = btw_direct_call(
&question,
&handle.live_status,
&handle.providers,
&cfg,
)
.await
{
if let Err(e) = tx
.send(OutboundMessage {
target_id: sender_id,
is_group: false,
text: format!("[/btw] {}", reply_text),
reply_to: None,
images: vec![],
channel: None,
account: None,
files: vec![], })
.await
{
tracing::warn!("failed to send message: {e}");
}
}
});
return;
}
// Fast preparse bypass: local commands skip per-user queue
if is_fast_preparse(&text) {
let reg = Arc::clone(®);
let tx = tx.clone();
let cfg = Arc::clone(&cfg);
let sender_id = sender_id.clone();
tokio::spawn(async move {
let handle = match reg.route("zalo") {
Ok(h) => h,
Err(_) => return,
};
let dm_scope = default_dm_scope(&cfg);
let session_key = derive_session_key(&SessionKeyParams {
agent_id: handle.id.clone(),
kind: MessageKind::DirectMessage { account_id: None },
channel: "zalo".to_string(),
peer_id: sender_id.clone(),
dm_scope,
});
if let Some(mut reply) = try_preparse_locally(&text, &handle, "zalo", &sender_id).await {
reply.target_id = sender_id.clone();
reply.is_group = false;
if !reply.text.is_empty() || !reply.images.is_empty() {
if let Err(e) = tx.send(reply).await {
tracing::warn!("failed to send message: {e}");
}
}
return;
}
let (reply_tx, reply_rx) = tokio::sync::oneshot::channel();
let msg = AgentMessage {
session_key,
text,
channel: "zalo".to_string(),
peer_id: sender_id.clone(),
chat_id: String::new(),
reply_tx,
extra_tools: vec![],
images,
files: vec![],
account: None,
};
if handle.tx.send(msg).await.is_err() {
return;
}
if let Ok(Ok(r)) = tokio::time::timeout(std::time::Duration::from_secs(10), reply_rx).await {
if !r.is_empty {
if let Err(e) = tx.send(OutboundMessage {
target_id: sender_id,
is_group: false,
text: r.text,
reply_to: None,
images: r.images,
files: r.files,
channel: None,
account: None,
}).await
{
tracing::warn!("failed to send message: {e}");
}
}
}
});
return;
}
if let Err(e) = user_tx.try_send((text, sender_id.clone(), images)) {
warn!(user = %sender_id, error = %e, "zalo: user queue full, dropping message");
}
});
},
);
let zalo = Arc::new(ZaloChannel::with_api_base(
access_token,
zalo_cfg.api_base.clone(),
on_message,
));
if zalo_slot.set(Arc::clone(&zalo)).is_err() {
tracing::debug!("slot already set, skipping");
}
let zalo_send = Arc::clone(&zalo);
tokio::spawn(async move {
while let Some(msg) = out_rx.recv().await {
if let Err(e) = zalo_send.send(msg).await {
error!("zalo send: {e:#}");
}
}
});
if let Err(e) = manager.register(Arc::clone(&zalo) as Arc<dyn Channel>) {
tracing::warn!("failed to register channel: {e}");
}
tokio::spawn(async move {
if let Err(e) = zalo.run().await {
error!("zalo channel: {e:#}");
}
});
info!(account = %acct_for_log, "zalo channel started (webhook mode)");
} // end for zalo_accounts
}