From 946ba7027b48bd96a90f1ddeb8c0165aceac43f3 Mon Sep 17 00:00:00 2001 From: colby Date: Fri, 10 Jul 2026 16:20:33 -0500 Subject: [PATCH] Sidecar: SQLite persistence store.rs (sqlx/sqlite) makes the data durable and queryable over time. Three tables: events (the full live stream, append-only), links (account <-> website user, mirrored from link.ok), profiles (last-known character sheet, cached from char.profile). The event loop persists every live event before broadcasting it; pong is dropped as ephemeral chatter. New read endpoints served from the DB rather than the shard: GET /history (optionally ?kind=), GET /economy (the money-supply series), GET /link/{account}. GET /char/serial/{serial} now falls back to the cached profile when the shard is unreachable, so an already-viewed character still renders during an outage; link.confirm mirrors a successful link into the store. Verified end to end: 10 economy.supply snapshots and the rest of the live stream persisted and served via /history and /economy; the data survived a sidecar restart (14 events still present, and the shard reconnected to the new sidecar); and with the shard killed, a cached profile returned at HTTP 200 while an uncached query failed cleanly at 503. The sidecar is feature-complete: shard link, WebSocket feed, REST queries, and persistence all work end-to-end against the live shard. Co-Authored-By: Claude Opus 4.8 --- sidecar/.gitignore | 2 + sidecar/Cargo.lock | 1174 +++++++++++++++++++++++++++++++++++++++++- sidecar/Cargo.toml | 1 + sidecar/README.md | 12 +- sidecar/src/main.rs | 26 +- sidecar/src/store.rs | 155 ++++++ sidecar/src/web.rs | 107 +++- 7 files changed, 1461 insertions(+), 16 deletions(-) create mode 100644 sidecar/src/store.rs diff --git a/sidecar/.gitignore b/sidecar/.gitignore index ea8c4bf..b7fe454 100644 --- a/sidecar/.gitignore +++ b/sidecar/.gitignore @@ -1 +1,3 @@ /target +*.db +*.db-* diff --git a/sidecar/Cargo.lock b/sidecar/Cargo.lock index 961a21a..b65a020 100644 --- a/sidecar/Cargo.lock +++ b/sidecar/Cargo.lock @@ -11,6 +11,12 @@ dependencies = [ "memchr", ] +[[package]] +name = "allocator-api2" +version = "0.2.21" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923" + [[package]] name = "anyhow" version = "1.0.103" @@ -28,12 +34,27 @@ dependencies = [ "syn", ] +[[package]] +name = "atoi" +version = "2.0.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f28d99ec8bfea296261ca1af174f24225171fea9664ba9003cbebee704810528" +dependencies = [ + "num-traits", +] + [[package]] name = "atomic-waker" version = "1.1.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0" +[[package]] +name = "autocfg" +version = "1.5.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53" + [[package]] name = "axum" version = "0.7.9" @@ -98,6 +119,21 @@ version = "0.22.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6" +[[package]] +name = "base64ct" +version = "1.8.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "2af50177e190e07a26ab74f8b1efbfe2ef87da2116221318cb1c2e82baf7de06" + +[[package]] +name = "bitflags" +version = "2.13.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b4388bee8683e3d04af747c73422af53102d2bd24d9eadb6cbc100baef4b43f8" +dependencies = [ + "serde_core", +] + [[package]] name = "block-buffer" version = "0.10.4" @@ -119,12 +155,37 @@ version = "1.12.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04" +[[package]] +name = "cc" +version = "1.2.66" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f5d6cac793997bd970000024b2934968efe83b382de4fdcf4fcb46b6ee4ad996" +dependencies = [ + "find-msvc-tools", + "shlex", +] + [[package]] name = "cfg-if" version = "1.0.4" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801" +[[package]] +name = "concurrent-queue" +version = "2.5.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4ca0197aee26d1ae37445ee532fefce43251d24cc7c166799f4d46817f1d3973" +dependencies = [ + "crossbeam-utils", +] + +[[package]] +name = "const-oid" +version = "0.9.6" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8" + [[package]] name = "cpufeatures" version = "0.2.17" @@ -134,6 +195,36 @@ dependencies = [ "libc", ] +[[package]] +name = "crc" +version = "3.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "5eb8a2a1cd12ab0d987a5d5e825195d372001a4094a0376319d5a0ad71c1ba0d" +dependencies = [ + "crc-catalog", +] + +[[package]] +name = "crc-catalog" +version = "2.5.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "217698eaf96b4a3f0bc4f3662aaa55bdf913cd54d7204591faa790070c6d0853" + +[[package]] +name = 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+dependencies = [ + "windows_aarch64_gnullvm", + "windows_aarch64_msvc", + "windows_i686_gnu", + "windows_i686_msvc", + "windows_x86_64_gnu", + "windows_x86_64_gnullvm", + "windows_x86_64_msvc", +] + +[[package]] +name = "windows_aarch64_gnullvm" +version = "0.48.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8" + +[[package]] +name = "windows_aarch64_msvc" +version = "0.48.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc" + +[[package]] +name = "windows_i686_gnu" +version = "0.48.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e" + +[[package]] +name = "windows_i686_msvc" +version = "0.48.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406" + +[[package]] +name = "windows_x86_64_gnu" +version = "0.48.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e" + +[[package]] +name = "windows_x86_64_gnullvm" +version = "0.48.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc" + +[[package]] +name = "windows_x86_64_msvc" +version = "0.48.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538" + +[[package]] +name = "writeable" +version = "0.6.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1ffae5123b2d3fc086436f8834ae3ab053a283cfac8fe0a0b8eaae044768a4c4" + +[[package]] +name = "yoke" +version = "0.8.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "709fe23a0424b6a435d82152b1bd3fdfb0833487d5fa90d05d42762a9891fef5" +dependencies = [ + "stable_deref_trait", + "yoke-derive", + "zerofrom", +] + +[[package]] +name = "yoke-derive" +version = "0.8.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "de844c262c8848816172cef550288e7dc6c7b7814b4ee56b3e1553f275f1858e" +dependencies = [ + "proc-macro2", + "quote", + "syn", + "synstructure", +] + [[package]] name = "zerocopy" version = "0.8.54" @@ -890,6 +1990,66 @@ dependencies = [ "syn", ] +[[package]] +name = "zerofrom" +version = "0.1.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "0ec05a11813ea801ff6d75110ad09cd0824ddba17dfe17128ea0d5f68e6c5272" +dependencies = [ + "zerofrom-derive", +] + +[[package]] +name = "zerofrom-derive" +version = "0.1.7" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "11532158c46691caf0f2593ea8358fed6bbf68a0315e80aae9bd41fbade684a1" +dependencies = [ + "proc-macro2", + "quote", + "syn", + "synstructure", +] + +[[package]] +name = "zeroize" +version = "1.9.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e13c156562582aa81c60cb29407084cdb54c4164760106ab78e6c5b0858cf64e" + +[[package]] +name = "zerotrie" +version = "0.2.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "0f9152d31db0792fa83f70fb2f83148effb5c1f5b8c7686c3459e361d9bc20bf" +dependencies = [ + "displaydoc", + "yoke", + "zerofrom", +] + +[[package]] +name = "zerovec" +version = "0.11.6" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "90f911cbc359ab6af17377d242225f4d75119aec87ea711a880987b18cd7b239" +dependencies = [ + "yoke", + "zerofrom", + "zerovec-derive", +] + +[[package]] +name = "zerovec-derive" +version = "0.11.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "625dc425cab0dca6dc3c3319506e6593dcb08a9f387ea3b284dbd52a92c40555" +dependencies = [ + "proc-macro2", + "quote", + "syn", +] + [[package]] name = "zmij" version = "1.0.21" diff --git a/sidecar/Cargo.toml b/sidecar/Cargo.toml index 5589b4c..27cd151 100644 --- a/sidecar/Cargo.toml +++ b/sidecar/Cargo.toml @@ -12,6 +12,7 @@ tracing = "0.1" tracing-subscriber = { version = "0.3", features = ["env-filter"] } anyhow = "1" axum = { version = "0.7", features = ["ws"] } +sqlx = { version = "0.8", features = ["runtime-tokio", "sqlite"] } [profile.release] opt-level = 2 diff --git a/sidecar/README.md b/sidecar/README.md index e9f1ef9..9ad18c1 100644 --- a/sidecar/README.md +++ b/sidecar/README.md @@ -25,7 +25,9 @@ Binds `127.0.0.1:7788` and waits for the shard to connect. Boot the shard (or it | Shard link (`shard.rs`) | **done** — accepts the shard, reads events, sends commands, re-accepts on disconnect. Verified against the live shard: received `server.hello`, round-tripped a `ping`→`pong`, and reconnected after a sidecar restart. | | WebSocket feed (`web.rs`) | **done** — `/ws` fans every shard event out to connected clients via a `broadcast`. Verified: a WS client received `ws.hello` then live `pong` events relayed from the shard. Live-only, no replay. | | REST queries (`rpc.rs` + `web.rs`) | **done** — synchronous queries and commands, correlated to shard replies by id. Verified end-to-end against the live shard, success and error paths. | -| SQLite persistence (event history, economy, cached profiles, link map) | not started | +| SQLite persistence (`store.rs`) | **done** — every live event persisted; history/economy served from the DB; profiles cached with shard-down fallback; link map. Verified: data survived a sidecar restart, and a cached profile served at 200 with the shard killed. | + +**The sidecar is feature-complete.** All four pieces work end-to-end against the live shard. The web server binds `127.0.0.1:8080` by default (`WEB_ADDR` in `main.rs`). Widen the bind and add auth before exposing it off-host. @@ -42,15 +44,19 @@ The web server binds `127.0.0.1:8080` by default (`WEB_ADDR` in `main.rs`). Wide | POST | `/link/confirm` `{code, websiteUserId}` | `link.confirm` | `link.ok` / `link.error` | | POST | `/towncrier` `{id, lines, durationSec}` | `towncrier.add` | `towncrier.ok` / `towncrier.error` | | DELETE | `/towncrier/{id}` | `towncrier.remove` | `towncrier.ok` / `towncrier.error` | +| GET | `/link/{account}` | — (reads store) | `{account, websiteUserId}` or 404 | +| GET | `/history?kind=&limit=` | — (reads store) | `{events: [...]}` newest first | +| GET | `/economy?limit=` | — (reads store) | `{series: [...]}` supply snapshots | -A shard `*.error` reply maps to HTTP 404 (unknown/not-found) or 400 (bad request). No shard connected → 503; no reply within 10 s → 504. +A shard `*.error` reply maps to HTTP 404 (unknown/not-found) or 400 (bad request). No shard connected → 503; no reply within 10 s → 504. `GET /char/serial/{serial}` falls back to the cached profile when the shard is unreachable, so an already-viewed character still renders during an outage. ## Design - **`shard.rs`** — `serve()` binds the listener and accepts shard connections in a loop. Each connection splits into read/write halves: the read half parses newline-JSON into `ShardEvent { kind, value }` and forwards them; the write half drains an mpsc of command lines. `ShardHandle::send` posts a command to whichever shard is currently connected, and **drops with a warning if none is** — a website query during a shard outage should fail fast and retry, not queue behind a reconnect. Live *events* that must survive an outage are buffered by the shard, not here. - **`web.rs`** — the website-facing HTTP surface (axum). `AppState` holds the `broadcast::Sender`; each `/ws` client subscribes and forwards every event as a text frame. A client that lags past the broadcast buffer is warned and kept live (it just misses events) rather than stalling the others. This side *may* be exposed beyond loopback — it is the gatekeeper, so add auth when you do. - **`rpc.rs`** — request/reply correlation over the one shard socket. A REST call registers a pending entry under a correlation id, sends the command, and awaits the reply (10 s timeout). The event loop routes any incoming line whose id is pending back to the waiter; everything else flows on as a live event. Recognizes three correlation fields, matching what the plugin echoes: `reqId` (queries), `code` (link), `id` (town-crier). -- **`main.rs`** — wires it together: the shard event loop first tries to route each line as an RPC reply; if it isn't one, the line is a live event, logged and broadcast to WS. Later phases persist to SQLite here. +- **`store.rs`** — SQLite (`sqlx`). Three tables: `events` (the full live stream, append-only), `links` (account ↔ website user, mirrored from `link.ok`), `profiles` (last-known character sheet, cached from `char.profile`). History and economy read here instead of the shard; `pong` is dropped as ephemeral chatter. DB file defaults to `uo-link.db` (`DB_PATH` in `main.rs`), gitignored. +- **`main.rs`** — wires it together: the shard event loop first tries to route each line as an RPC reply; if it isn't one, the line is a live event — logged, persisted, and broadcast to WS. ## Wire protocol diff --git a/sidecar/src/main.rs b/sidecar/src/main.rs index aa13b3f..17dba58 100644 --- a/sidecar/src/main.rs +++ b/sidecar/src/main.rs @@ -5,6 +5,7 @@ mod rpc; mod shard; +mod store; mod web; use tokio::sync::{broadcast, mpsc}; @@ -13,6 +14,7 @@ use tracing_subscriber::EnvFilter; const SHARD_ADDR: &str = "127.0.0.1:7788"; const WEB_ADDR: &str = "127.0.0.1:8080"; +const DB_PATH: &str = "uo-link.db"; #[tokio::main] async fn main() -> anyhow::Result<()> { @@ -29,11 +31,15 @@ async fn main() -> anyhow::Result<()> { // Request/reply correlation for REST queries. let rpc = rpc::Rpc::new(); + // Durable store: event history, economy series, cached profiles, link map. + let store = store::Store::open(DB_PATH).await?; + // Website-facing HTTP server. let web_state = web::AppState { events: bcast_tx.clone(), shard: handle.clone(), rpc: rpc.clone(), + store: store.clone(), }; tokio::spawn(async move { if let Err(e) = web::serve(WEB_ADDR, web_state).await { @@ -42,9 +48,10 @@ async fn main() -> anyhow::Result<()> { }); // Event loop: a line that correlates to a pending REST call is a reply — route it to the - // waiting caller and stop. Everything else is a live event: log it and broadcast it. + // waiting caller and stop. Everything else is a live event: log it, persist it, broadcast it. let feed_tx = bcast_tx.clone(); let route_rpc = rpc.clone(); + let event_store = store.clone(); let mut total: u64 = 0; tokio::spawn(async move { while let Some(ev) = event_rx.recv().await { @@ -61,6 +68,15 @@ async fn main() -> anyhow::Result<()> { _ => tracing::debug!(kind = %ev.kind, n = total, "{}", ev.value), } + // Persist, then broadcast. `pong` and `ws.hello` are ephemeral chatter, not history. + if ev.kind != "pong" { + let t = ev.value.get("t").and_then(|v| v.as_i64()).unwrap_or_else(now_ms); + let text = ev.value.to_string(); + if let Err(e) = event_store.insert_event(t, &ev.kind, &text).await { + tracing::warn!(error = %e, "failed to persist event"); + } + } + let _ = feed_tx.send(ev.value.to_string()); } }); @@ -83,6 +99,14 @@ async fn main() -> anyhow::Result<()> { Ok(()) } +fn now_ms() -> i64 { + use std::time::{SystemTime, UNIX_EPOCH}; + SystemTime::now() + .duration_since(UNIX_EPOCH) + .map(|d| d.as_millis() as i64) + .unwrap_or(0) +} + fn init_tracing() { tracing_subscriber::fmt() .with_env_filter( diff --git a/sidecar/src/store.rs b/sidecar/src/store.rs new file mode 100644 index 0000000..f55cbd5 --- /dev/null +++ b/sidecar/src/store.rs @@ -0,0 +1,155 @@ +//! SQLite persistence: event history, the economy series, cached profiles, and the account-link +//! map. This is what lets the website read the past without asking the shard, and what survives a +//! sidecar restart. +//! +//! The event loop writes every live event here as it broadcasts it; REST read endpoints query here +//! instead of round-tripping the shard. Links and profiles are written from the REST reply paths +//! (`link.ok`, `char.profile`), which are RPC replies and never hit the broadcast stream. + +use std::str::FromStr; + +use serde_json::Value; +use sqlx::sqlite::{SqliteConnectOptions, SqlitePoolOptions}; +use sqlx::{Row, SqlitePool}; +use tracing::info; + +#[derive(Clone)] +pub struct Store { + pool: SqlitePool, +} + +impl Store { + /// Opens (creating if absent) the SQLite database and ensures the schema exists. + pub async fn open(path: &str) -> anyhow::Result { + let opts = SqliteConnectOptions::from_str(&format!("sqlite://{path}"))? + .create_if_missing(true); + + let pool = SqlitePoolOptions::new() + .max_connections(4) + .connect_with(opts) + .await?; + + sqlx::query(SCHEMA).execute(&pool).await?; + info!(%path, "store ready"); + Ok(Self { pool }) + } + + /// Appends one live event. Failures are logged by the caller; persistence must never block the + /// live feed. + pub async fn insert_event(&self, t: i64, kind: &str, json: &str) -> anyhow::Result<()> { + sqlx::query("INSERT INTO events (t, kind, json) VALUES (?, ?, ?)") + .bind(t) + .bind(kind) + .bind(json) + .execute(&self.pool) + .await?; + Ok(()) + } + + /// Most-recent events, newest first, optionally filtered by kind. + pub async fn recent(&self, kind: Option<&str>, limit: i64) -> anyhow::Result> { + let limit = limit.clamp(1, 1000); + let rows = match kind { + Some(k) => { + sqlx::query("SELECT json FROM events WHERE kind = ? ORDER BY id DESC LIMIT ?") + .bind(k) + .bind(limit) + .fetch_all(&self.pool) + .await? + } + None => { + sqlx::query("SELECT json FROM events ORDER BY id DESC LIMIT ?") + .bind(limit) + .fetch_all(&self.pool) + .await? + } + }; + Ok(parse_json_column(rows)) + } + + /// The money-supply series: the `economy.supply` events, newest first. + pub async fn economy(&self, limit: i64) -> anyhow::Result> { + self.recent(Some("economy.supply"), limit).await + } + + pub async fn record_link(&self, account: &str, website_user_id: &str, t: i64) -> anyhow::Result<()> { + sqlx::query( + "INSERT INTO links (account, website_user_id, linked_t) VALUES (?, ?, ?) + ON CONFLICT(account) DO UPDATE SET website_user_id = excluded.website_user_id, linked_t = excluded.linked_t", + ) + .bind(account) + .bind(website_user_id) + .bind(t) + .execute(&self.pool) + .await?; + Ok(()) + } + + pub async fn get_link(&self, account: &str) -> anyhow::Result> { + let row = sqlx::query("SELECT website_user_id FROM links WHERE account = ?") + .bind(account) + .fetch_optional(&self.pool) + .await?; + Ok(row.map(|r| r.get::("website_user_id"))) + } + + pub async fn cache_profile( + &self, + serial: &str, + account: Option<&str>, + name: Option<&str>, + json: &str, + t: i64, + ) -> anyhow::Result<()> { + sqlx::query( + "INSERT INTO profiles (serial, account, name, json, updated_t) VALUES (?, ?, ?, ?, ?) + ON CONFLICT(serial) DO UPDATE SET account = excluded.account, name = excluded.name, json = excluded.json, updated_t = excluded.updated_t", + ) + .bind(serial) + .bind(account) + .bind(name) + .bind(json) + .bind(t) + .execute(&self.pool) + .await?; + Ok(()) + } + + pub async fn get_cached_profile(&self, serial: &str) -> anyhow::Result> { + let row = sqlx::query("SELECT json FROM profiles WHERE serial = ?") + .bind(serial) + .fetch_optional(&self.pool) + .await?; + Ok(row.and_then(|r| serde_json::from_str(&r.get::("json")).ok())) + } +} + +fn parse_json_column(rows: Vec) -> Vec { + rows.into_iter() + .filter_map(|r| serde_json::from_str(&r.get::("json")).ok()) + .collect() +} + +const SCHEMA: &str = r#" +CREATE TABLE IF NOT EXISTS events ( + id INTEGER PRIMARY KEY AUTOINCREMENT, + t INTEGER NOT NULL, + kind TEXT NOT NULL, + json TEXT NOT NULL +); +CREATE INDEX IF NOT EXISTS idx_events_kind ON events(kind, id); + +CREATE TABLE IF NOT EXISTS links ( + account TEXT PRIMARY KEY, + website_user_id TEXT NOT NULL, + linked_t INTEGER NOT NULL +); + +CREATE TABLE IF NOT EXISTS profiles ( + serial TEXT PRIMARY KEY, + account TEXT, + name TEXT, + json TEXT NOT NULL, + updated_t INTEGER NOT NULL +); +"#; diff --git a/sidecar/src/web.rs b/sidecar/src/web.rs index 06d2fcc..6a9fc87 100644 --- a/sidecar/src/web.rs +++ b/sidecar/src/web.rs @@ -8,18 +8,20 @@ use std::time::Duration; use axum::{ extract::ws::{Message, WebSocket, WebSocketUpgrade}, - extract::{Path, State}, + extract::{Path, Query, State}, http::StatusCode, response::IntoResponse, routing::{get, post}, Json, Router, }; +use serde::Deserialize; use serde_json::{json, Value}; use tokio::sync::broadcast; use tracing::{debug, info, warn}; use crate::rpc::{Rpc, RpcError}; use crate::shard::ShardHandle; +use crate::store::Store; /// Shared state handed to each request handler. #[derive(Clone)] @@ -27,6 +29,7 @@ pub struct AppState { pub events: broadcast::Sender, pub shard: ShardHandle, pub rpc: Rpc, + pub store: Store, } pub async fn serve(addr: &str, state: AppState) -> anyhow::Result<()> { @@ -40,8 +43,12 @@ pub async fn serve(addr: &str, state: AppState) -> anyhow::Result<()> { .route("/vendors/:account", get(vendors)) // Inbound commands (correlated by code / id). .route("/link/confirm", post(link_confirm)) + .route("/link/:account", get(link_lookup)) .route("/towncrier", post(towncrier_add)) .route("/towncrier/:id", axum::routing::delete(towncrier_remove)) + // History, read from SQLite rather than the shard. + .route("/history", get(history)) + .route("/economy", get(economy)) .with_state(state); let listener = tokio::net::TcpListener::bind(addr).await?; @@ -97,7 +104,7 @@ async fn char_by_slot( ) -> impl IntoResponse { let req_id = st.rpc.next_req_id(); let cmd = json!({"kind":"char.request","reqId":req_id,"account":account,"slot":slot}); - respond(st.rpc.call(&st.shard, cmd, &req_id).await) + char_reply(&st, st.rpc.call(&st.shard, cmd, &req_id).await).await } async fn char_by_serial( @@ -105,8 +112,38 @@ async fn char_by_serial( Path(serial): Path, ) -> impl IntoResponse { let req_id = st.rpc.next_req_id(); - let cmd = json!({"kind":"char.request","reqId":req_id,"serial":serial}); - respond(st.rpc.call(&st.shard, cmd, &req_id).await) + let cmd = json!({"kind":"char.request","reqId":req_id,"serial":serial.clone()}); + let result = st.rpc.call(&st.shard, cmd, &req_id).await; + + // Resilience: if the shard is unreachable, serve the last cached profile if we have one. + if matches!(result, Err(RpcError::NoShard) | Err(RpcError::Timeout)) { + if let Ok(Some(cached)) = st.store.get_cached_profile(&serial).await { + return (StatusCode::OK, Json(cached)); + } + } + char_reply(&st, result).await +} + +/// Caches a successful profile before responding, so a later shard outage can still serve it. +async fn char_reply(st: &AppState, result: Result) -> (StatusCode, Json) { + if let Ok(value) = &result { + if value.get("kind").and_then(|k| k.as_str()) == Some("char.profile") { + if let Some(serial) = value.get("serial").and_then(|s| s.as_str()) { + let t = value.get("t").and_then(|v| v.as_i64()).unwrap_or(0); + let _ = st + .store + .cache_profile( + serial, + value.get("acct").and_then(|a| a.as_str()), + value.get("name").and_then(|n| n.as_str()), + &value.to_string(), + t, + ) + .await; + } + } + } + respond(result) } async fn roster(State(st): State, Path(account): Path) -> impl IntoResponse { @@ -140,7 +177,35 @@ async fn link_confirm(State(st): State, Json(body): Json) -> im let cmd = json!({"kind":"link.confirm","code":code,"websiteUserId":web_id}); let code = code.to_string(); - respond(st.rpc.call(&st.shard, cmd, &code).await) + let result = st.rpc.call(&st.shard, cmd, &code).await; + + // Mirror a successful link into the store so events can be attributed without the shard. + if let Ok(value) = &result { + if value.get("kind").and_then(|k| k.as_str()) == Some("link.ok") { + if let Some(account) = value.get("account").and_then(|a| a.as_str()) { + let t = value.get("t").and_then(|v| v.as_i64()).unwrap_or(0); + let _ = st.store.record_link(account, web_id, t).await; + } + } + } + respond(result) +} + +async fn link_lookup(State(st): State, Path(account): Path) -> impl IntoResponse { + match st.store.get_link(&account).await { + Ok(Some(web_id)) => ( + StatusCode::OK, + Json(json!({"account": account, "websiteUserId": web_id})), + ), + Ok(None) => ( + StatusCode::NOT_FOUND, + Json(json!({"account": account, "linked": false})), + ), + Err(e) => ( + StatusCode::INTERNAL_SERVER_ERROR, + Json(json!({"error": e.to_string()})), + ), + } } /// Body: {"id":"n123","lines":["..."],"durationSec":3600}. Correlated on `id`. @@ -167,6 +232,38 @@ async fn towncrier_remove( respond(st.rpc.call(&st.shard, cmd, &id).await) } +// ---- history (from SQLite) ---- + +#[derive(Deserialize)] +struct HistoryQuery { + kind: Option, + limit: Option, +} + +/// Recent events from the store, newest first. `?kind=vendor.sale&limit=50` to filter. +async fn history(State(st): State, Query(q): Query) -> impl IntoResponse { + let limit = q.limit.unwrap_or(100); + match st.store.recent(q.kind.as_deref(), limit).await { + Ok(events) => (StatusCode::OK, Json(json!({"events": events}))), + Err(e) => ( + StatusCode::INTERNAL_SERVER_ERROR, + Json(json!({"error": e.to_string()})), + ), + } +} + +/// The money-supply series (economy.supply snapshots), newest first. +async fn economy(State(st): State, Query(q): Query) -> impl IntoResponse { + let limit = q.limit.unwrap_or(100); + match st.store.economy(limit).await { + Ok(series) => (StatusCode::OK, Json(json!({"series": series}))), + Err(e) => ( + StatusCode::INTERNAL_SERVER_ERROR, + Json(json!({"error": e.to_string()})), + ), + } +} + // ---- websocket ---- async fn ws_upgrade(ws: WebSocketUpgrade, State(state): State) -> impl IntoResponse {