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lewis.moe
1use std::net::SocketAddr;
2use std::process::ExitCode;
3use std::sync::Arc;
4use tokio::sync::watch;
5use tracing::{error, info, warn};
6use tranquil_pds::comms::{CommsService, DiscordSender, EmailSender, SignalSender, TelegramSender};
7use tranquil_pds::crawlers::{Crawlers, start_crawlers_service};
8use tranquil_pds::scheduled::{backfill_repo_rev, backfill_user_blocks, start_scheduled_tasks};
9use tranquil_pds::state::AppState;
10
11#[tokio::main]
12async fn main() -> ExitCode {
13 dotenvy::dotenv().ok();
14 tracing_subscriber::fmt::init();
15 tranquil_pds::metrics::init_metrics();
16
17 match run().await {
18 Ok(()) => ExitCode::SUCCESS,
19 Err(e) => {
20 error!("Fatal error: {}", e);
21 ExitCode::FAILURE
22 }
23 }
24}
25
26async fn run() -> Result<(), Box<dyn std::error::Error>> {
27 let state = AppState::new().await?;
28 tranquil_pds::sync::listener::start_sequencer_listener(state.clone()).await;
29
30 let (shutdown_tx, shutdown_rx) = watch::channel(false);
31
32 let backfill_db = state.db.clone();
33 let backfill_block_store = state.block_store.clone();
34 tokio::spawn(async move {
35 backfill_repo_rev(&backfill_db, backfill_block_store.clone()).await;
36 backfill_user_blocks(&backfill_db, backfill_block_store).await;
37 });
38
39 let mut comms_service = CommsService::new(state.db.clone());
40
41 if let Some(email_sender) = EmailSender::from_env() {
42 info!("Email comms enabled");
43 comms_service = comms_service.register_sender(email_sender);
44 } else {
45 warn!("Email comms disabled (MAIL_FROM_ADDRESS not set)");
46 }
47
48 if let Some(discord_sender) = DiscordSender::from_env() {
49 info!("Discord comms enabled");
50 comms_service = comms_service.register_sender(discord_sender);
51 }
52
53 if let Some(telegram_sender) = TelegramSender::from_env() {
54 info!("Telegram comms enabled");
55 comms_service = comms_service.register_sender(telegram_sender);
56 }
57
58 if let Some(signal_sender) = SignalSender::from_env() {
59 info!("Signal comms enabled");
60 comms_service = comms_service.register_sender(signal_sender);
61 }
62
63 let comms_handle = tokio::spawn(comms_service.run(shutdown_rx.clone()));
64
65 let crawlers_handle = if let Some(crawlers) = Crawlers::from_env() {
66 let crawlers = Arc::new(
67 crawlers.with_circuit_breaker(state.circuit_breakers.relay_notification.clone()),
68 );
69 let firehose_rx = state.firehose_tx.subscribe();
70 info!("Crawlers notification service enabled");
71 Some(tokio::spawn(start_crawlers_service(
72 crawlers,
73 firehose_rx,
74 shutdown_rx.clone(),
75 )))
76 } else {
77 warn!("Crawlers notification service disabled (PDS_HOSTNAME or CRAWLERS not set)");
78 None
79 };
80
81 let scheduled_handle = tokio::spawn(start_scheduled_tasks(
82 state.db.clone(),
83 state.blob_store.clone(),
84 shutdown_rx,
85 ));
86
87 let app = tranquil_pds::app(state);
88 let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
89 info!("listening on {}", addr);
90
91 let listener = tokio::net::TcpListener::bind(addr)
92 .await
93 .map_err(|e| format!("Failed to bind to {}: {}", addr, e))?;
94
95 let server_result = axum::serve(listener, app)
96 .with_graceful_shutdown(shutdown_signal(shutdown_tx))
97 .await;
98
99 comms_handle.await.ok();
100
101 if let Some(handle) = crawlers_handle {
102 handle.await.ok();
103 }
104
105 scheduled_handle.await.ok();
106
107 if let Err(e) = server_result {
108 return Err(format!("Server error: {}", e).into());
109 }
110
111 Ok(())
112}
113
114async fn shutdown_signal(shutdown_tx: watch::Sender<bool>) {
115 let ctrl_c = async {
116 match tokio::signal::ctrl_c().await {
117 Ok(()) => {}
118 Err(e) => {
119 error!("Failed to install Ctrl+C handler: {}", e);
120 }
121 }
122 };
123
124 #[cfg(unix)]
125 let terminate = async {
126 match tokio::signal::unix::signal(tokio::signal::unix::SignalKind::terminate()) {
127 Ok(mut signal) => {
128 signal.recv().await;
129 }
130 Err(e) => {
131 error!("Failed to install SIGTERM handler: {}", e);
132 std::future::pending::<()>().await;
133 }
134 }
135 };
136
137 #[cfg(not(unix))]
138 let terminate = std::future::pending::<()>();
139
140 tokio::select! {
141 _ = ctrl_c => {},
142 _ = terminate => {},
143 }
144
145 info!("Shutdown signal received, stopping services...");
146 shutdown_tx.send(true).ok();
147}