A completes a real refactor by removing a stale duplicate forum.rs so the module tree resolves unambiguously to forum/mod.rs, fixing a build-correctness hazard; B merely adds one probabilistic unit test with no production code changes. Both are modest, but A's fix has direct build/runtime consequence while B's is a nice-to-have test with a randomized (non-deterministic) assertion that could be flaky.
constitution · epochs · watch · epoch 3
comparison
c_ebc883667d61 (tommy-mor) vs c_b7cc67300477 (tommy-mor)
download prompt · raw event · cmp_9e970a8ec674bd
council reasoning
B adds a focused property test that the rank-centrality scorer recovers full alphabetical order from a minimal spanning tree of 25 perfect-ratio votes—real regression/documentation value for core ranking math. A is largely module plumbing: deleting the leftover monolithic forum.rs and shuffling the same handlers into forum/* with only minor import cleanup, so most of the huge diff is structural churn rather than new behavior or fixes.
Side A removes the duplicate `server/src/html/forum.rs` monolithic module, adds `forum/mod.rs`, and makes the split `forum/` directory the single module root, eliminating ambiguous module resolution while preserving functionality through extracted submodules like `feed.rs`, `views.rs`, and `thread_morph.rs`. Side B only adds a regression test for rank centrality on a random spanning-tree vote graph; it improves verification but does not change the implementation itself.
sides
A — c_ebc883667d61 (tommy-mor)
message
[21b57b50] fix(html): drop duplicate forum.rs; use forum/ as sole module root Removes the leftover monolithic file so mod forum resolves to forum/mod.rs without ambiguity. Keeps feed, views, and other split modules as the source. Made-with: Cursor
diff preview
diff --git a/server/src/html/forum.rs b/server/src/html/forum.rs
deleted file mode 100644
index 5ad8dfc84dd735d589432e2c613ff687a75f2e61..0000000000000000000000000000000000000000
--- a/server/src/html/forum.rs
+++ /dev/null
@@ -1,1405 +0,0 @@
-use axum::{
- extract::{Path, Query, State},
- http::{HeaderMap, StatusCode, Uri},
- response::{Html, IntoResponse},
-};
-use axum_extra::extract::cookie::CookieJar;
-use maud::{html, Markup};
-use serde::Deserialize;
-
-use crate::{
- api::optional_principal,
- canonical_path::{canonicalize_item, canonicalize_tag},
- events::ThreadCapability,
- form_template::template_json_compact,
- identity::parse_username,
- reducer::{scope_from_room_wire, ReducerState, ScopeId},
- state::AppState,
- timeago,
-};
-use serde_json::json;
-
-use super::js_string_literal;
-use super::ui_action::{HtmlUiAction, UI_RPC_FIELD};
-
-use super::{
- bc_segment, bc_threads, cli_panel, layout, now_ms, profile_href, recency_class,
- render_linkified_with_embeds_in_scope, theme_from_jar, theme_next_from_uri, JsBuilder,
-};
-
-#[derive(Clone)]
-struct ThreadRow {
- tag: String,
- subtitle: Option<String>,
- last_ts: i64,
- ingests: usize,
-}
-
-#[derive(Clone)]
-struct RoomMemberRow {
- username: String,
- capabilities: Vec<&'static str>,
-}
-
-/// URL helpers for public `/t/…` and private room threads `/r/{short}/{slug}/t/…`.
-#[derive(Clone)]
-pub struct ThreadNav {
- pub room_wire: String,
- scope: ScopeId,
- room_path: String,
- thread_path_prefix: String,
- garden_path_prefix: String,
-}
-
-impl ThreadNav {
- pub(crate) fn public() -> Self {
- Self {
- room_wire: "public".into(),
- scope: ScopeId::Public,
- room_path: "/t".into(),
- thread_path_prefix: "/t".into(),
- garden_path_prefix: "/~".into(),
- }
- }
-
- /// `room_id` wire form `shortid/slug`.
- pub(crate) fn from_room_id(room_id: &str) -> Option<Self> {
- let (short, slug) = room_id.split_once('/')?;
- if short.is_empty() || slug.is_empty() {
- return None;
- }
- Some(Self {
- room_wire: room_id.to_string(),
- scope: ScopeId::Room(room_id.to_string()),
- room_path: format!("/r/{short}/{slug}"),
- thread_path_prefix: format!("/r/{short}/{slug}/t"),
- garden_path_prefix: format!("/r/{short}/{slug}/~"),
- })
- }
-
- pub(crate) fn scope(&self) -> ScopeId {
- self.scope.clone()
- }
-
- pub(crate) fn room_url(&self) -> &str {
- &self.room_path
- }
-
- pub(crate) fn thread_url(&self, tag: &str) -> String {
- format!("{}/{}", self.thread_path_prefix, tag)
- }
-
- pub(crate) fn garden_root_url(&self) -> &str {
- &self.garden_path_prefix
- }
-
- pub(crate) fn garden_item_url(&self, item: &str) -> String {
- if let Some(tail) = crate::path_types::CanonicalItemUrl::parse(item)
- .and_then(|c| c.tilde_tail().map(str::to_owned))
- {
- format!("{}/{}", self.garden_path_prefix, tail)
- } else {
- format!("{}/{}", self.garden_path_prefix, canonicalize_item(item))
- }
- }
-
- fn thread_page_url(&self, tag: &str, offset: usize) -> String {
- let base = self.thread_url(tag);
- if offset == 0 {
- base
- } else {
- format!("{base}?offset={offset}")
- }
- }
-
- fn post_url(&self, tag: &str, idx: usize) -> String {
- format!("{}/{}/{}", self.thread_path_prefix, tag, idx)
- }
-}
-
-/// `POST /ui` + `__rpc__` from an inline link (`onclick`); same-origin credentials as other morph actions.
-fn thread_ui_fetch_onclick(rpc_compact_json: &str) -> String {
- format!(
- "fetch('/ui',{{method:'POST',headers:{{'Content-Type':'application/x-www-form-urlencoded'}},body:new URLSearchParams({{__rpc__:{}}}).toString(),credentials:'same-origin'}}).then(r=>r.text()).then(eval);return false",
- js_string_literal(rpc_compact_json)
- )
-}
-
-fn thread_nav_for_ingest(ing: &crate::events::Ingest) -> Option<ThreadNav> {
- let room = ing.room_id.trim();
- if room.is_empty() || room == "public" {
- Some(ThreadNav::public())
- } else {
- ThreadNav::from_room_id(room)
- }
-}
-
-fn thread_post_index_in_scope(reduced: &ReducerState, ing: &crate::events::Ingest) -> Option<usize> {
- let scope = scope_from_room_wire(&ing.room_id);
- let tag = canonicalize_tag(&ing.thread_tag);
- reduced
- .ingests_by_scope_thread
- .get(&(scope, tag))
- .and_then(|q| q.iter().rev().position(|id| id == &ing.id))
-}
-
-fn post_header_meta(
- nav: &ThreadNav,
- tag: &str,
- post_idx: usize,
- principal: &str,
- ts: i64,
- now: i64,
-) -> Markup {
- let post_href = nav.post_url(tag, post_idx);
- let profile = profile_href(principal);
- let hover = timeago::rfc3339_utc(ts);
- let ago = timeago::timeago(now, ts);
- html! {
- div class="ingest-meta muted" title=(hover) {
- a href=(post_href) class="post-num" { "#" (post_idx) }
- " "
- a href=(profile) class="post-author" { "@" (principal) }
- " · "
- (ago)
- }
- }
-}
-
-fn post_header_row(
- nav: &ThreadNav,
- tag: &str,
- post_idx: usize,
- ing: &crate::events::Ingest,
- _viewer: Option<&str>,
- now: i64,
- show_delete: bool,
-) -> Markup {
- let meta = post_header_meta(nav, tag, post_idx, &ing.principal, ing.ts, now);
- html! {
- div class="ingest-header-row" {
- (meta)
- @if show_delete {
- form class="post-delete-form" method="POST" action="/ui" {
- input type="hidden" name=(UI_RPC_FIELD) value=(template_json_compact(&HtmlUiAction::RedactPost { post_id: ing.id.clone() }).unwrap());
- button type="submit" class="post-delete-btn" { "delete" }
- }
- }
- }
- }
-}
-
-fn redacted_header_row(
- nav: &ThreadNav,
- tag: &str,
- post_idx: usize,
- ing: &crate::events::Ingest,
- now: i64,
- expanded: bool,
-) -> Markup {
- let meta = post_header_meta(nav, tag, post_idx, &ing.principal, ing.ts, now);
- let rpc_expand = template_json_compact(&json!({
- "action": "expand_redacted_post",
- "room": nav.room_wire,
- "thread_tag": tag,
- "post_index": post_idx,
- }))
- .unwrap();
- let rpc_collapse = template_json_compact(&json!({
- "action": "collapse_redacted_post",
- "room": nav.room_wire,
- "thread_tag": tag,
- "post_index": post_idx,
- }))
- .unwrap();
- let onclick_expand = thread_ui_fetch_onclick(&rpc_expand);
- let onclick_collapse = thread_ui_fetch_onclick(&rpc_collapse);
- html! {
- div class="ingest-header-row ingest-tombstone-row" {
- (meta)
- span class="post-tombstone-inline muted" {
- "deleted · "
- @if expanded {
- a href="#" class="hide-deleted-link"
- onclick=(onclick_collapse) {
- "[hide deleted content]"
- }
- } @else {
- a href="#" class="show-deleted-link"
- onclick=(onclick_expand) {
- "[show deleted content]"
- }
- }
- }
- }
- }
-}
-
-fn ingest_entry_markup(
- nav: &ThreadNav,
- tag: &str,
- post_idx: usize,
- ing: &crate::events::Ingest,
- viewer: Option<&str>,
- now: i64,
- reduced: &ReducerState,
-) -> Markup {
- let redacted = reduced.redacted_posts.contains(&ing.id);
- let show_delete = viewer == Some(ing.principal.as_str()) && !redacted;
- if redacted {
- html! {
- div class="ingest-entry ingest-redacted" data-ingest-id=(ing.id) {
- (redacted_header_row(nav, tag, post_idx, ing, now, false))
- }
- }
- } else {
- let truncated = ing.raw.len() > 2000;
- let display_body = if truncated { &ing.raw[..2000] } else { &ing.raw[..] };
- html! {
- div class="ingest-entry" data-ingest-id=(ing.id) {
- (post_header_row(nav, tag, post_idx, ing, viewer, now, show_delete))
- (render_linkified_with_embeds_in_scope(display_body, nav.garden_root_url()))
- @if truncated {
- @let rpc_full = template_json_compact(&json!({
- "action": "expand_post_full",
- "room": nav.room_wire,
- "thread_tag": tag,
- "post_index": post_idx,
- })).unwrap();
- @let onclick_full = thread_ui_fetch_onclick(&rpc_full);
- a href="#" class="show-full-link"
- onclick=(onclick_full) {
- "[show full post]"
- }
- }
- }
- }
- }
-}
-
-fn collect_thread_rows_for_scope(reduced: &ReducerState, scope: &ScopeId, now: i64) -> Vec<ThreadRow> {
- let _ = now;
- reduced
- .forum_threads
- .iter()
- .filter(|((s, _), _)| s == scope)
- .map(|((_, tag), thread)| {
- let ingests = reduced
- .ingests_by_scope_thread
- .get(&(scope.clone(), tag.clone()))
- .map(|q| q.len())
- .unwrap_or(0);
- ThreadRow {
- tag: tag.clone(),
- subtitle: None,
- last_ts: thread.last_activity_ts,
- ingests,
- }
- })
- .collect()
-}
-
-fn rooms_for_user(reduced: &ReducerState, username: &str) -> Vec<String> {
- let mut v: Vec<String> = reduced
- .grants
- .iter()
- .filter(|(rid, m)| reduced.rooms.contains(*rid) && m.contains_key(username))
- .map(|(rid, _)| rid.clone())
- .collect();
- v.sort();
- v
-}
-
-pub(crate) fn user_can_view_room(reduced: &ReducerState, room_id: &str, username: Option<&str>) -> bool {
- if !reduced.rooms.contains(room_id) {
- return false;
- }
- let Some(u) = username else {
- return false;
- };
- reduced.user_has_cap(room_id, u, ThreadCapability::View)
-}
-
-pub(crate) fn user_can_post_room(reduced: &ReducerState, room_id: &str, username: &str) -> bool {
- reduced.user_has_cap(room_id, username, ThreadCapability::Post)
-}
-
-fn capability_label(cap: ThreadCapability) -> &'static str {
- match cap {
- ThreadCapability::View => "view",
- ThreadCapability::Post => "post",
- ThreadCapability::Vote => "vote",
- ThreadCapability::AddItem => "add_item",
- ThreadCapability::Manage => "manage",
- }
-}
-
-fn room_members_for_room(reduced: &ReducerState, room_id: &str) -> Vec<RoomMemberRow> {
- let mut rows: Vec<RoomMemberRow> = reduced
- .grants
- .get(room_id)
- .into_iter()
- .flat_map(|members| members.iter())
- .map(|(username, caps)| {
- let mut ordered = Vec::new();
- for cap in [
- ThreadCapability::View,
- ThreadCapability::Post,
- ThreadCapability::Vote,
- ThreadCapability::AddItem,
- ThreadCapability::Manage,
- ] {
- if caps.contains(&cap) {
- ordered.push(capability_label(cap));
- }
- }
- RoomMemberRow {
- username: username.clone(),
- capabilities: ordered,
- }
- })
- .collect();
- rows.sort_by(|a, b| a.username.cmp(&b.username));
- rows
-}
-
-fn room_members_inner(members: &[RoomMemberRow]) -> Markup {
- html! {
- h3 { "members
… preview truncated; 77,260 characters omittedB — c_b7cc67300477 (tommy-mor)
message
[9e3d989b] Add test that 25 spanning-tree votes with perfect ratios sort the alphabet. Demonstrates rank centrality recovers the true order from a random connected comparison graph when each vote encodes item strength as (idx+1). Co-authored-by: Cursor <cursoragent@cursor.com>
diff preview
diff --git a/server/src/ranking.rs b/server/src/ranking.rs
index c9b4d5d89d2f22cf53a5b43eb979e19a11bc89a1..93cb4c9f5887a1e598cdc9d648751055f618adcc 100644
--- a/server/src/ranking.rs
+++ b/server/src/ranking.rs
@@ -369,6 +369,48 @@ mod tests {
assert_eq!(comp1, vec!["c", "d"]);
}
+ /// A random spanning tree over 26 items needs only n−1 = 25 pairwise votes.
+ /// When each vote uses the "perfect" ratio (strength left : strength right =
+ /// (idx_left+1) : (idx_right+1)), rank centrality recovers the true order.
+ /// See `rank-eric.py` (Eric's demo of Negahban–Oh–Shah rank centrality).
+ #[test]
+ fn twenty_five_random_votes_perfect_ratios_sort_alphabet() {
+ use rand::seq::SliceRandom;
+
+ const N: usize = 26;
+ let letters: Vec<char> = (0..N).map(|i| char::from(b'a' + i as u8)).collect();
+
+ let mut rng = rand::thread_rng();
+ let mut perm: Vec<usize> = (0..N).collect();
+ perm.shuffle(&mut rng);
+
+ let mut g = mk_group();
+ for k in 1..N {
+ let i = *perm[..k].choose(&mut rng).unwrap();
+ let j = perm[k];
+ let (a, b) = (letters[i], letters[j]);
+ g.apply_vote(vote(
+ k as i64,
+ &a.to_string(),
+ &b.to_string(),
+ (i + 1) as i32,
+ (j + 1) as i32,
+ ));
+ }
+
+ let ranked = ranked_items(&g);
+ assert_eq!(ranked.len(), N);
+ for (rank, item) in ranked.iter().enumerate() {
+ let expected = char::from(b'a' + (N - 1 - rank) as u8);
+ assert_eq!(
+ item.item.as_str(),
+ expected.to_string(),
+ "rank {rank}: expected '{expected}', got '{}'",
+ item.item.as_str()
+ );
+ }
+ }
+
#[test]
fn subset_ranking_ranks_within_component_only() {
let mut g = mk_group();
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