Side A implements a real, working feature: a background Reddit fetch worker with OAuth, rate-limit handling, backoff, JSON parsing into EntityData, and unit tests, wired into the UI to actually populate node data. Side B is largely a structural refactor (settlement->journal rename, scope->ItemId tree plumbing, path canonicalization) that is valuable groundwork but leaves reddit.rs as an unchanged placeholder (fetch_reddit_entity still returns None), so it delivers less concrete end-user functionality than A's completed fetch pipeline.
constitution · epochs · watch · epoch 3
comparison
c_c124c217f89c (tommy-mor) vs c_509fc5155034 (tommy-mor)
download prompt · raw event · cmp_20f802f728cc18
council reasoning
B replaces flat string scopes/GroupMap/settlement with the hierarchical GlobalTree, rich ItemId canonicalization/parents/breadcrumbs, NodeEnsured events, journal worker, and UI wired to tree nodes—core lasting design. A adds a solid RedditBroker (OAuth, rate limits, JSON parse, tests) on that stub, but it is feature work that depends on B’s model rather than reshaping the project.
Side A turns the Reddit integration from a placeholder into a working subsystem: it adds a background fetch broker, OAuth support, rate-limit handling, request deduplication/caching, JSON parsing into EntityData, automatic fetch triggering from navigation and node creation, and tests. Side B mainly restructures the application around hierarchical ItemId/GlobalTree concepts, updates the UI to use breadcrumbs and node-based rankings, and renames the settlement worker to a journal, but much of it is architectural refactoring and scaffolding, whereas Side A delivers substantial new functionality that persists in the project.
sides
A — c_c124c217f89c (tommy-mor)
message
[8d8230d1] reddit
diff preview
diff --git a/.gitignore b/.gitignore
index 4c7073f9fac0c30fd2050d79a60ef447af58ebeb..ada462e900d24a3a6d08165d158c80f79c35a5a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
data/
repomix-output.xml
dev-data/
+.env
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 7906a8547d56b8e6a48ef59c37aa82a8510fdee9..4677fedcb45292eebebe7e9cf6ce2f5738f18ddf 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -16,6 +16,7 @@ tower = "0.5"
tower-http = { version = "0.5", features = ["trace"] }
tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+reqwest = { version = "0.12", features = ["json"] }
[dev-dependencies]
reqwest = { version = "0.12", features = ["json"] }
diff --git a/server/src/html/mod.rs b/server/src/html/mod.rs
index 2864407ed6e8ec284a1dc663acf1805534566b62..df6505021d9f446c2b453e20e3eb3cf696a111f9 100644
--- a/server/src/html/mod.rs
+++ b/server/src/html/mod.rs
@@ -272,5 +272,16 @@ pub async fn home(State(state): State<AppState>, uri: Uri) -> impl IntoResponse
pub async fn browse(State(state): State<AppState>, uri: Uri) -> impl IntoResponse {
let item = ItemId::from_browse_uri(uri.path()).unwrap_or(ItemId::root());
+ if item.as_str().starts_with("reddit.com") {
+ let needs_fetch = {
+ let tree = state.tree.read().await;
+ tree.get(&item)
+ .map(|n| n.data.is_none())
+ .unwrap_or(true)
+ };
+ if needs_fetch {
+ state.reddit.request_fetch(item.clone());
+ }
+ }
item_page(state, uri, item).await
}
diff --git a/server/src/reddit.rs b/server/src/reddit.rs
index d203dca09245daf869b3aa942898447700ae69fb..90053ad03b1d7c8e94f325dd4ee64c2b4f7da900 100644
--- a/server/src/reddit.rs
+++ b/server/src/reddit.rs
@@ -1,4 +1,12 @@
-//! Reddit API import (async, decoupled from UI request path).
+//! Reddit API import via a single background worker (rate limits, dedup, backoff).
+
+use std::collections::{HashMap, HashSet};
+use std::sync::Arc;
+use std::time::{Duration, Instant};
+
+use reqwest::{header, Client, StatusCode};
+use serde::Deserialize;
+use tokio::sync::{mpsc, RwLock};
use crate::{
path_types::ItemId,
@@ -10,12 +18,401 @@ pub fn ensure_partial_tree(tree: &mut GlobalTree, id: &ItemId) {
tree.ensure_path(id);
}
-/// Placeholder for Reddit JSON import. Returns entity data when implemented.
-pub async fn fetch_reddit_entity(_id: &ItemId) -> Option<EntityData> {
- None
+pub struct RedditCommand {
+ pub id: ItemId,
+}
+
+#[derive(Clone)]
+pub struct RedditBroker {
+ tx: mpsc::Sender<RedditCommand>,
+}
+
+#[derive(Clone)]
+struct RedditCredentials {
+ client_id: String,
+ client_secret: String,
+}
+
+struct OAuthToken {
+ access_token: String,
+ expires_at: Instant,
+}
+
+impl RedditBroker {
+ pub fn spawn(tree: Arc<RwLock<GlobalTree>>, user_agent: &str) -> Self {
+ let (tx, rx) = mpsc::channel(100);
+
+ let mut headers = header::HeaderMap::new();
+ headers.insert(
+ header::USER_AGENT,
+ header::HeaderValue::from_str(user_agent).expect("valid user agent"),
+ );
+
+ let client = Client::builder()
+ .default_headers(headers)
+ .timeout(Duration::from_secs(15))
+ .build()
+ .expect("reqwest client");
+
+ let creds = RedditCredentials::from_env();
+ tokio::spawn(reddit_worker(rx, tree, client, creds));
+
+ Self { tx }
+ }
+
+ /// Fire-and-forget: queue a fetch; worker updates the tree when done.
+ pub fn request_fetch(&self, id: ItemId) {
+ let _ = self.tx.try_send(RedditCommand { id });
+ }
+}
+
+impl RedditCredentials {
+ fn from_env() -> Option<Self> {
+ let client_id = std::env::var("REDDIT_CLIENT_ID").ok()?;
+ let client_secret = std::env::var("REDDIT_CLIENT_SECRET").ok()?;
+ if client_id.is_empty() || client_secret.is_empty() {
+ return None;
+ }
+ Some(Self {
+ client_id,
+ client_secret,
+ })
+ }
+}
+
+pub fn default_user_agent() -> String {
+ std::env::var("REDDIT_USER_AGENT").unwrap_or_else(|_| {
+ "web:sorter2.social:v0.0.1 (by /u/sorter2)".to_string()
+ })
}
-/// Apply fetched entity data to a node (called from async worker).
-pub fn apply_entity(tree: &mut GlobalTree, id: &ItemId, data: EntityData) {
- tree.set_entity_data(id, data);
+async fn reddit_worker(
+ mut rx: mpsc::Receiver<RedditCommand>,
+ tree: Arc<RwLock<GlobalTree>>,
+ client: Client,
+ creds: Option<RedditCredentials>,
+) {
+ let mut in_flight = HashSet::new();
+ let mut recently_fetched: HashMap<ItemId, Instant> = HashMap::new();
+ let mut current_delay = Duration::from_secs(1);
+ let mut oauth: Option<OAuthToken> = None;
+ let cache_ttl = Duration::from_secs(300);
+
+ while let Some(cmd) = rx.recv().await {
+ let now = Instant::now();
+ recently_fetched.retain(|_, t| now.duration_since(*t) < cache_ttl);
+
+ if in_flight.contains(&cmd.id) || recently_fetched.contains_key(&cmd.id) {
+ continue;
+ }
+
+ in_flight.insert(cmd.id.clone());
+ let fetch_id = cmd.id.clone();
+
+ tokio::time::sleep(current_delay).await;
+
+ if let Some(c) = &creds {
+ oauth = ensure_oauth_token(&client, c, oauth.take()).await;
+ }
+
+ let token = oauth.as_ref().map(|t| t.access_token.as_str());
+ let use_oauth = token.is_some();
+
+ match do_fetch(&client, &fetch_id, use_oauth, token).await {
+ Ok(FetchOutcome::Entity(data)) => {
+ let mut w = tree.write().await;
+ w.set_entity_data(&fetch_id, data);
+ recently_fetched.insert(fetch_id.clone(), Instant::now());
+ current_delay = Duration::from_millis(600);
+ }
+ Ok(FetchOutcome::NotFound) => {
+ recently_fetched.insert(fetch_id.clone(), Instant::now());
+ }
+ Ok(FetchOutcome::RateLimited { reset_secs }) => {
+ let wait = Duration::from_secs(reset_secs.max(1));
+ tracing::warn!(
+ "Reddit rate limit for {}; sleeping {}s",
+ fetch_id,
+ wait.as_secs()
+ );
+ tokio::time::sleep(wait).await;
+ current_delay = (current_delay * 2).min(Duration::from_secs(60));
+ }
+ Err(e) => {
+ tracing::warn!("Reddit fetch failed for {}: {}", fetch_id, e);
+ current_delay = (current_delay * 2).min(Duration::from_secs(60));
+ }
+ }
+
+ in_flight.remove(&fetch_id);
+ }
+}
+
+enum FetchOutcome {
+ Entity(EntityData),
+ NotFound,
+ RateLimited { reset_secs: u64 },
+}
+
+async fn ensure_oauth_token(
+ client: &Client,
+ creds: &RedditCredentials,
+ existing: Option<OAuthToken>,
+) -> Option<OAuthToken> {
+ if let Some(t) = existing {
+ if Instant::now() < t.expires_at - Duration::from_secs(60) {
+ return Some(t);
+ }
+ }
+
+ let resp = client
+ .post("https://www.reddit.com/api/v1/access_token")
+ .basic_auth(&creds.client_id, Some(&creds.client_secret))
+ .form(&[("grant_type", "client_credentials")])
+ .send()
+ .await;
+
+ let resp = match resp {
+ Ok(r) => r,
+ Err(e) => {
+ tracing::warn!("Reddit OAuth token request failed: {e}");
+ return None;
+ }
+ };
+
+ if !resp.status().is_success() {
+ tracing::warn!("Reddit OAuth token HTTP {}", resp.status());
+ return None;
+ }
+
+ #[derive(Deserialize)]
+ struct TokenResponse {
+ access_token: String,
+ expires_in: u64,
+ }
+
+ let body: TokenResponse = match resp.json().await {
+ Ok(b) => b,
+ Err(e) => {
+ tracing::warn!("Reddit OAuth token parse failed: {e}");
+ return None;
+ }
+ };
+
+ Some(OAuthToken {
+ access_token: body.access_token,
+ expires_at: Instant::now() + Duration::from_secs(body.expires_in),
+ })
+}
+
+async fn do_fetch(
+ client: &Client,
+ id: &ItemId,
+ use_oauth: bool,
+ bearer: Option<&str>,
+) -> Result<FetchOutcome, String> {
+ let url = map_item_to_reddit_api(id, use_oauth);
+ if url.is_empty() {
+ return Ok(FetchOutcome::NotFound);
+ }
+
+ let mut req = client.get(&url);
+ if let Some(token) = bearer {
+ req = req.bearer_auth(token);
+ }
+
+ let resp = req.send().await.map_err(|e| e.to_string())?;
+
+ if resp.status() == StatusCode::TOO_MANY_REQUESTS {
+ let reset = rate_limit_reset_secs(&resp);
+ return Ok(FetchOutcome::RateLimited { reset_secs: reset });
+ }
+
+ if resp.status() == StatusCode::SERVICE_UNAVAILABLE {
+ return Err("Reddit unavailable (503)".to_string());
+ }
+
+ if !resp.status().is_success() {
+ return Ok(FetchOutcome::NotFound);
+ }
+
+ if rate_limit_remaining(&resp) == Some(0) {
+ let reset = rate_limit_reset_secs(&resp);
+ return Ok(FetchOutcome::RateLimited { reset_secs: reset });
+ }
+
+ let bytes = resp.bytes().await.map_err(|e| e.to_string())?;
+ Ok(parse_reddit_json(id, &bytes)
+ .map(FetchOutcome::Entity)
+ .unwrap_or(FetchOutcome::NotFound))
+}
+
+fn rate_limit_remaining(resp: &reqwest::Response) -> Option<u64> {
+ resp.headers()
+ .get("x-ratelimit-remaining")
+ .and_then(|v| v.to_str().ok())
+ .and_then(|s| s.parse::<f64>().ok())
+ .map(|f| f.floor() as u64)
+}
+
+fn rate_limit_reset_secs(resp: &reqwest::Response) -> u64 {
+ resp.headers()
+ .get("x-ratelimit-reset")
+ .and_then(|v| v.to_str().ok())
+ .and_then(|s| s.parse::<f64>().ok())
+ .map(|f| f.ceil() as u64)
+ .unwrap_or(5)
+}
+
+/// Map canonical item id to Reddit JSON API URL.
+pub fn map_item_to_reddit_api(id: &ItemId, oauth: bool) -> String {
+ let path = id.as_str();
+ if !path.starts_with("reddit.com/") && path != "reddit.com" {
+ return String::new();
+ }
+
+ let base = if oauth {
+ "https://oauth.reddit.com"
+ } else {
+ "https://www.reddit.com"
+ };
+
+ let segments: Vec<&str> = path.split('/').collect();
+
+ if let Some(i) = segments.iter().position(|&p| p == "comments") {
+ if segments.len() > i + 1 {
+ let api_path = segments[1..=i + 1].join("/");
+ return format!("{base}/{api_path}.json?raw_json=1");
+ }
+ }
+
+ if segments.len() == 3 && segments[1] == "r" {
+ return format!("{base}/r/{}/about.json?raw_json=1", segments[2]);
+ }
+
+ String::new()
+}
+
+fn parse_reddit_json(id: &ItemId, bytes: &[u8]) -> Option<EntityData> {
+ let v: serde_json::Value = serde_json::from_slice(bytes).ok()?;
+ let segments: Vec<&str> = id.as_str().split('/').collect();
+
+ if segments.iter().any(|&p| p == "comments") {
+ parse_post_listing(&v)
+ } else {
+ parse_subreddit_about(&v)
+ }
+}
+
+fn parse_subreddit_about(v: &serde_json::Value) -> Option<EntityData> {
+ let data = v.get("data")?;
+ let title = data
+ .get("title")
+ .or_else(|| data.get("display_name"))
+ .and_then(|t| t.as_str())?
+ .to_string();
+ let body_html = data
+ .get("public_description_html")
+ .or_else(|| data.get("public_description"))
+ .and_then(|t| t.as_str())
+ .map(|s| s.to_string());
+ let thumb_url = data
+ .get("icon_img")
+ .or_else(|| data.get("community_icon"))
+ .and_then(|t| t.as_str())
+ .filter(|s| !s.is_empty())
+ .map(|s| s.to_string());
+
+ Some(EntityData {
+ title,
+ author: None,
+ body_html,
+ thumb_url,
+ })
+}
+
+fn parse_post_listing(v:
… preview truncated; 4,570 characters omittedB — c_509fc5155034 (tommy-mor)
message
[88577c56] reconfigure
diff preview
diff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs
index c4ab9d65c7b3cd42a5b4d093ba429993c101e9a8..82b2aa51d21ada1d0d849d3ddfc3a81e4241d861 100644
--- a/server/src/api/ui_html.rs
+++ b/server/src/api/ui_html.rs
@@ -9,7 +9,9 @@ use crate::{
html::{js_string_literal, ranking_panel, JsBuilder},
parser::parse_reddit_url,
parser_render::navigate_panel,
- state::AppState,
+ path_types::ItemId,
+ reddit::ensure_partial_tree,
+ state::{parse_item_param, AppState},
ui_action::{parse_html_ui_from_form, HtmlUiAction},
};
@@ -25,6 +27,10 @@ fn ui_js_warn(msg: &str) -> Response {
.unwrap()
}
+fn parent_from_scope(scope: &str) -> ItemId {
+ parse_item_param(scope)
+}
+
pub async fn post_ui_html(
State(state): State<AppState>,
Form(form): Form<HashMap<String, String>>,
@@ -42,24 +48,36 @@ pub async fn post_ui_html(
ratio_right,
scope,
} => {
+ let parent = parent_from_scope(&scope);
if let Err(e) = state
- .record_vote(&scope, &a, &b, ratio_left, ratio_right)
+ .record_vote(&parent, &a, &b, ratio_left, ratio_right)
.await
{
return ui_js_warn(&e).into_response();
}
- let scope = crate::state::normalize_scope(&scope);
- let groups = state.groups.read().await;
+ let tree = state.tree.read().await;
let empty = crate::reducer::GroupState::new();
- let group = groups.get(&scope).unwrap_or(&empty);
- let panel = ranking_panel(&scope, group);
+ let group = tree
+ .get(&parent)
+ .map(|n| &n.local_ranking)
+ .unwrap_or(&empty);
+ let panel = ranking_panel(&parent, group);
JsBuilder::new()
.morph_selector("#ranking-panel", panel)
.into_response()
}
HtmlUiAction::ParseQuery { query } => match parse_reddit_url(&query) {
- Ok(subreddit) => {
- let dest = format!("/?sub={subreddit}");
+ Ok(item) => {
+ {
+ let mut tree = state.tree.write().await;
+ ensure_partial_tree(&mut tree, &item);
+ }
+ let _ = state.ensure_node(&item).await;
+ let dest = if item.is_root() {
+ "/".to_string()
+ } else {
+ format!("/?item={}", item.as_str())
+ };
JsBuilder::new()
.raw(&format!(
"window.location.href={};",
diff --git a/server/src/events.rs b/server/src/events.rs
index a862370fc840ffe02184a11c578e18239cc9474d..ed5be6b13b9d46e838831d6ce0f96f569b401730 100644
--- a/server/src/events.rs
+++ b/server/src/events.rs
@@ -5,8 +5,8 @@ use serde::{Deserialize, Serialize};
pub enum Event {
/// Page view recorded (path → counter in views.json).
ViewRecorded { path: String, ts: i64 },
- /// Pairwise comparison vote (replayed into the scope's [`crate::reducer::GroupState`] on boot).
- /// `scope` is the ranking subject (e.g. a subreddit); empty string is the default/global scope.
+ /// Pairwise comparison vote (replayed into the parent node's [`crate::reducer::GroupState`] on boot).
+ /// `scope` is the parent [`crate::path_types::ItemId`] string; empty string is the tree root.
VoteRecorded {
ts: i64,
a: String,
@@ -16,4 +16,6 @@ pub enum Event {
#[serde(default)]
scope: String,
},
+ /// Register a node path in the fractal tree (no external fetch).
+ NodeEnsured { id: String },
}
diff --git a/server/src/html/mod.rs b/server/src/html/mod.rs
index 9650d333d29c4ac94ceb407aee3ee00399c7f40b..c973cb718ac74b95570dabea76e24459417790b9 100644
--- a/server/src/html/mod.rs
+++ b/server/src/html/mod.rs
@@ -12,9 +12,10 @@ use serde::Deserialize;
use crate::{
form_template::template_json_compact,
parser_render::navigate_panel,
+ path_types::ItemId,
ranking::{top_bottom, RankedItem},
- reducer::GroupState,
- state::{normalize_scope, AppState},
+ reducer::{GroupState, NodeState},
+ state::{parse_item_param, AppState},
ui_action::UI_RPC_FIELD,
};
@@ -216,6 +217,48 @@ fn layout(title: &str, body: Markup, views: u64, theme: &str, theme_next: &str)
}
}
+fn item_href(id: &ItemId) -> String {
+ if id.is_root() {
+ "/".to_string()
+ } else {
+ format!("/?item={}", id.as_str())
+ }
+}
+
+fn segment_label(seg: &str) -> &str {
+ seg
+}
+
+/// Generic breadcrumb trail from an [`ItemId`] path.
+pub fn breadcrumb_path(item: &ItemId) -> Markup {
+ html! {
+ nav class="breadcrumbs" aria-label="Breadcrumb" {
+ a href="/" { "Internet" }
+ @for path in item.breadcrumb_paths() {
+ @let seg = path.segments().last().map_or("", |v| *v);
+ span class="separator" { " / " }
+ a href=(item_href(&path)) { (segment_label(seg)) }
+ }
+ }
+ }
+}
+
+fn entity_panel(node: &NodeState) -> Markup {
+ html! {
+ @if let Some(data) = &node.data {
+ section id="entity-panel" class="demo-panel entity-card" {
+ h2 { (data.title) }
+ @if let Some(author) = &data.author {
+ p class="muted small" { "by " (author) }
+ }
+ @if let Some(body) = &data.body_html {
+ div class="entity-body" { (maud::PreEscaped(body)) }
+ }
+ }
+ }
+ }
+}
+
fn rank_list(label: &str, items: &[RankedItem], start_rank: usize) -> Markup {
html! {
@if !items.is_empty() {
@@ -224,7 +267,9 @@ fn rank_list(label: &str, items: &[RankedItem], start_rank: usize) -> Markup {
@for (i, r) in items.iter().enumerate() {
li {
span class="rank-num" { (start_rank + i) ". " }
- strong { (r.item.as_str()) }
+ a href=(item_href(&r.item)) {
+ strong { (display_label(&r.item)) }
+ }
span class="muted" {
" — "
({ format!("{:.1}%", r.score * 100.0) })
@@ -236,23 +281,30 @@ fn rank_list(label: &str, items: &[RankedItem], start_rank: usize) -> Markup {
}
}
-pub fn ranking_panel(scope: &str, group: &GroupState) -> Markup {
+fn display_label(id: &ItemId) -> String {
+ id.segments()
+ .last()
+ .map_or("Internet", |v| *v)
+ .to_string()
+}
+
+pub fn ranking_panel(item: &ItemId, group: &GroupState) -> Markup {
let total = group.idx_to_item.len();
let (top, bottom) = top_bottom(group, 8);
html! {
section id="ranking-panel" class="demo-panel" {
h2 {
"Ranking"
- @if !scope.is_empty() {
- " — " span class="scope-name" { "r/" (scope) }
+ @if !item.is_root() {
+ " — " span class="scope-name" { (item.as_str()) }
}
}
@if total == 0 {
p class="muted" {
- @if scope.is_empty() {
+ @if item.is_root() {
"No votes yet — compare two items below."
} @else {
- "No votes yet for r/" (scope) " — compare two items below to start the ranking."
+ "No votes yet for " (item.as_str()) " — compare two items below to start the ranking."
}
}
} @else {
@@ -266,7 +318,8 @@ pub fn ranking_panel(scope: &str, group: &GroupState) -> Markup {
}
}
-pub fn vote_panel(scope: &str) -> Markup {
+pub fn vote_panel(parent: &ItemId) -> Markup {
+ let parent_str = parent.as_str();
let rpc = template_json_compact(&serde_json::json!({
"action": "record_vote",
"a": {"$form": "item_a"},
@@ -280,16 +333,17 @@ pub fn vote_panel(scope: &str) -> Markup {
section id="vote-panel" class="demo-panel" {
h2 { "Compare" }
p class="muted small" {
- @if scope.is_empty() {
+ @if parent.is_root() {
"Left item wins at 2:1. Votes append to the JSONL log and update rank centrality."
} @else {
- "Ranking " span class="scope-name" { "r/" (scope) }
+ "Ranking children of "
+ span class="scope-name" { (parent_str) }
". Left item wins at 2:1; each vote updates this ranking."
}
}
form method="post" action="/ui" id="vote-form" {
input type="hidden" name=(UI_RPC_FIELD) value=(rpc);
- input type="hidden" name="scope" value=(scope);
+ input type="hidden" name="scope" value=(parent_str);
div class="vote-fields" {
label {
"Left (wins) "
@@ -329,17 +383,30 @@ pub async fn home(
let views = state.views.get_views(&path);
let theme = theme_from_jar(&jar);
let theme_next = theme_next_from_uri(&uri);
- let scope = normalize_scope(&query_param(&uri, "sub").unwrap_or_default());
- let groups = state.groups.read().await;
- let empty = GroupState::new();
- let group = groups.get(&scope).unwrap_or(&empty);
+ let item_raw = query_param(&uri, "item")
+ .or_else(|| query_param(&uri, "sub").map(|sub| {
+ if sub.is_empty() {
+ String::new()
+ } else {
+ format!("reddit.com/r/{sub}")
+ }
+ }))
+ .unwrap_or_default();
+ let item = parse_item_param(&item_raw);
+
+ let tree = state.tree.read().await;
+ let empty_node = NodeState::default();
+ let node = tree.get(&item).unwrap_or(&empty_node);
+ let group = &node.local_ranking;
let body = html! {
h1 { "sorter2" }
+ (breadcrumb_path(&item))
(navigate_panel("", None))
- (vote_panel(&scope))
- (ranking_panel(&scope, group))
+ (entity_panel(node))
+ (vote_panel(&item))
+ (ranking_panel(&item, group))
};
layout("sorter2", body, views, theme, &theme_next)
}
diff --git a/server/src/journal.rs b/server/src/journal.rs
new file mode 100644
index 0000000000000000000000000000000000000000..b02ca025683621470ffdf8cd85cf9b85c56d024d
--- /dev/null
+++ b/server/src/journal.rs
@@ -0,0 +1,89 @@
+use std::sync::Arc;
+
+use tokio::sync::{mpsc, oneshot, RwLock};
+
+use crate::{
+ event_log::EventLog,
+ events::Event,
+ path_types::ItemId,
+ reducer::{GlobalTree, VoteData},
+};
+
+pub struct JournalCommand {
+ pub parent: ItemId,
+ pub vote: VoteData,
+ pub event: Event,
+ pub reply: oneshot::Sender<Result<(), String>>,
+}
+
+#[derive(Clone)]
+pub struct JournalClient {
+ tx: mpsc::Sender<JournalCommand>,
+}
+
+impl JournalClient {
+ pub fn spawn(tree: Arc<RwLock<GlobalTree>>, event_log: Arc<EventLog>) -> Self {
+ let (tx, rx) = mpsc::channel(64);
+ tokio::spawn(journal_worker(rx, tree, event_log));
+ Self { tx }
+ }
+
+ pub async fn record_vote(
+ &self,
+ parent: ItemId,
+ vote: VoteData,
+ event: Event,
+ ) -> Result<(), String> {
+ let (reply, rx) = oneshot::channel();
+ self.tx
+ .send(JournalCommand {
+ parent,
+ vote,
+ event,
+ reply,
+ })
+ .await
+ .map_err(|_| "journal worker stopped".to_string())?;
+ rx.await
+ .map_err(|_| "journal worker stopped".to_string())?
+ }
+}
+
+async fn journal_worker(
+
… preview truncated; 29,088 characters omittedHardlinks — judgments / attempts / prompt
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