Commit B is a substantial, functionally significant change: it moves theme selection from client-only JS/localStorage to a server-rendered, cookie-based, SSR-consistent mechanism (new /theme route, cookie helpers, layout signature changes across every page handler) and also adds room-aware URL rewriting for API/RPC responses (item_path_for_api_in_room, forum_thread_web_url) with accompanying tests, fixing real correctness gaps for private rooms. Commit A is a smaller, well-tested fix improving color gradient semantics for rank rows, which is valuable but narrower in scope and impact than B's cross-cutting architectural and correctness improvements.
constitution · epochs · watch · epoch 3
comparison
c_66eb04076a98 (tommy-mor) vs c_3f420a1f5aa1 (tommy-mor)
download prompt · raw event · cmp_85e7ade3b4f07d
council reasoning
B delivers a durable theme architecture (cookie + POST /theme, SSR stylesheet selection, login cookie re-issue) and substantial private-room API correctness via item_path_for_api_in_room/forum_thread_web_url wired through RPC and pages with tests. A is a focused, well-tested rank-color fix (score min–max vs list ordinal) but is scoped polish; B’s product and API surface changes outweigh that despite more mechanical plumbing.
Side B implements a substantial cross-cutting feature: persistent theme selection via cookies and a POST /theme flow, preserves the theme across authentication by reissuing cookies, updates page rendering to honor the selected theme, and fixes room-aware URL generation throughout the RPC/API with dedicated helper functions and tests. Side A improves the rank list visualization by switching row coloring from list position to per-group score normalization and adds focused tests, but it is a localized UI enhancement compared with B's broader infrastructure and correctness improvements.
sides
A — c_66eb04076a98 (tommy-mor)
message
[0366806e] Color rank rows by vote mass within each group, not list position. Min–max normalization keeps similar scores visually close while still using the full gradient as groups grow and absolute mass dilutes. Co-authored-by: Cursor <cursoragent@cursor.com>
diff preview
diff --git a/server/src/html/mod.rs b/server/src/html/mod.rs
index a58cbbee3490a08a625cb06df06848c59a615d65..4eff2e19ed4d303ff8e80c1eabd8a15b4990e643 100644
--- a/server/src/html/mod.rs
+++ b/server/src/html/mod.rs
@@ -264,12 +264,19 @@ pub fn scope_theme_style(parent: &ItemId) -> String {
)
}
-fn rank_row_style(parent: &ItemId, ordinal: usize, total: usize) -> String {
- let t = if total <= 1 {
- 0.0
- } else {
- ordinal as f64 / (total - 1) as f64
- };
+/// Map vote mass to gradient position using the group's score range, not raw mass or
+/// list position. Vote mass sums to 1 across the component, so absolute values dilute
+/// as N grows; min–max within the visible list preserves similar scores → similar colors.
+fn score_gradient_t(score: f64, min_score: f64, max_score: f64) -> f64 {
+ let spread = max_score - min_score;
+ if spread < 1e-9 {
+ return 0.5;
+ }
+ ((max_score - score) / spread).clamp(0.0, 1.0)
+}
+
+fn rank_row_style(parent: &ItemId, score: f64, min_score: f64, max_score: f64) -> String {
+ let t = score_gradient_t(score, min_score, max_score);
let base_hue = scope_base_hue(parent);
let hue = (base_hue + 118.0 * t) % 360.0;
let lightness = 0.74 - 0.34 * t;
@@ -295,14 +302,15 @@ fn rank_list(
highlighted: &HashSet<ItemId>,
tree: &GlobalTree,
) -> Markup {
- let group_len = items.len();
+ let min_score = items.iter().map(|r| r.score).fold(f64::INFINITY, f64::min);
+ let max_score = items.iter().map(|r| r.score).fold(f64::NEG_INFINITY, f64::max);
html! {
@if !items.is_empty() {
h3 class="rank-heading muted small" { (label) }
ol class="rank-list" {
@for (i, r) in items.iter().enumerate() {
@let href = item_href(&r.item);
- @let style = rank_row_style(parent, i, group_len);
+ @let style = rank_row_style(parent, r.score, min_score, max_score);
@let class = rank_row_class(&r.item, highlighted);
li class=(class)
data-rank-item=(r.item.as_str())
@@ -517,19 +525,37 @@ pub async fn browse(State(state): State<AppState>, uri: Uri) -> impl IntoRespons
#[cfg(test)]
mod tests {
- use super::{rank_row_style, SORTER_UI_JS};
+ use super::{rank_row_style, score_gradient_t, SORTER_UI_JS};
use crate::path_types::ItemId;
#[test]
- fn rank_row_style_gradients_per_group_not_globally() {
+ fn score_gradient_t_uses_group_range_not_absolute_mass() {
+ assert!((score_gradient_t(0.12, 0.08, 0.12) - 0.0).abs() < 1e-9);
+ assert!((score_gradient_t(0.08, 0.08, 0.12) - 1.0).abs() < 1e-9);
+ // Raw 12% mass would map near the dark end globally; within this group it's the top.
+ assert!(score_gradient_t(0.12, 0.08, 0.12) < score_gradient_t(0.12, 0.0, 1.0));
+ }
+
+ #[test]
+ fn score_gradient_t_similar_scores_similar_t() {
+ let a = score_gradient_t(0.41, 0.20, 0.60);
+ let b = score_gradient_t(0.40, 0.20, 0.60);
+ assert!((a - b).abs() < 0.05);
+ assert!((a - score_gradient_t(0.60, 0.20, 0.60)).abs() > 0.3);
+ }
+
+ #[test]
+ fn score_gradient_t_tied_scores_neutral() {
+ assert!((score_gradient_t(0.25, 0.25, 0.25) - 0.5).abs() < 1e-9);
+ }
+
+ #[test]
+ fn rank_row_style_same_inputs_same_color() {
let parent = ItemId::opaque("test-scope");
- let first_in_four = rank_row_style(&parent, 0, 4);
- let last_in_four = rank_row_style(&parent, 3, 4);
- let first_in_two = rank_row_style(&parent, 0, 2);
- let last_in_two = rank_row_style(&parent, 1, 2);
- assert_eq!(first_in_four, first_in_two);
- assert_eq!(last_in_four, last_in_two);
- assert_ne!(first_in_four, last_in_four);
+ assert_eq!(
+ rank_row_style(&parent, 0.33, 0.20, 0.60),
+ rank_row_style(&parent, 0.33, 0.20, 0.60),
+ );
}
#[test]
B — c_3f420a1f5aa1 (tommy-mor)
message
[2fe70b0e] themes
diff preview
diff --git a/server/src/api/auth.rs b/server/src/api/auth.rs
index 559db65de14c6157690ffbf18eca0cf65b0a5202..b3631b06153d52f88348fef927e7a024b7b85ad6 100644
--- a/server/src/api/auth.rs
+++ b/server/src/api/auth.rs
@@ -1,7 +1,7 @@
use axum::{
body::Body,
extract::{Path, Query, State},
- http::{header, HeaderMap, HeaderValue, StatusCode},
+ http::{header, HeaderMap, HeaderValue, StatusCode, Uri},
response::{IntoResponse, Redirect, Response},
Form, Json,
};
@@ -17,7 +17,7 @@ use crate::{
events::{Event, GrantAdded, TokenIssued, UserRegistered},
html::{
auth_complete_page, auth_signed_in_fragment, choose_username_error_fragment,
- choose_username_page, JsBuilder,
+ choose_username_page, theme_cookie_header_from_jar, theme_from_jar, theme_next_from_uri, JsBuilder,
},
identity::{parse_agent, parse_username},
reducer::ReducerState,
@@ -48,15 +48,17 @@ fn js_form_error_fragment(session: &str, error: &str) -> Response {
.into_response()
}
-fn js_signed_in_fragment(bearer: &str) -> Response {
+fn js_signed_in_fragment(bearer: &str, jar: &CookieJar) -> Response {
let mut response = JsBuilder::new()
.id("choose-username-form")
.morph_inner(auth_signed_in_fragment())
.redirect("/auth/complete")
.into_response();
- response
- .headers_mut()
- .insert(header::SET_COOKIE, session_cookie_header_value(bearer));
+ let headers = response.headers_mut();
+ headers.append(header::SET_COOKIE, session_cookie_header_value(bearer));
+ if let Some(theme) = theme_cookie_header_from_jar(jar) {
+ headers.append(header::SET_COOKIE, theme);
+ }
response
}
@@ -69,13 +71,18 @@ pub fn optional_principal(headers: &HeaderMap, jar: &CookieJar, reduced: &Reduce
verify_token(reduced, c.value()).ok()
}
-fn redirect_with_session_cookie(public_url: &str, path_and_query: &str, bearer: &str) -> Response {
- Response::builder()
+fn redirect_with_session_cookie(public_url: &str, path_and_query: &str, bearer: &str, jar: &CookieJar) -> Response {
+ let mut res = Response::builder()
.status(StatusCode::TEMPORARY_REDIRECT)
.header(header::LOCATION, format!("{public_url}{path_and_query}"))
- .header(header::SET_COOKIE, session_cookie_header_value(bearer))
.body(Body::empty())
- .unwrap()
+ .unwrap();
+ let headers = res.headers_mut();
+ headers.append(header::SET_COOKIE, session_cookie_header_value(bearer));
+ if let Some(theme) = theme_cookie_header_from_jar(jar) {
+ headers.append(header::SET_COOKIE, theme);
+ }
+ res
}
async fn apply_invite_redemption(state: &AppState, invite_token: &str, grantee_username: &str) -> Result<(), String> {
@@ -286,7 +293,11 @@ pub struct AuthCallbackQuery {
pub state: String,
}
-pub async fn get_auth_callback(Query(q): Query<AuthCallbackQuery>, State(state): State<AppState>) -> impl IntoResponse {
+pub async fn get_auth_callback(
+ Query(q): Query<AuthCallbackQuery>,
+ State(state): State<AppState>,
+ jar: CookieJar,
+) -> impl IntoResponse {
let sessions = pending_sessions(&state);
{
let sessions_read = sessions.read().await;
@@ -365,7 +376,7 @@ pub async fn get_auth_callback(Query(q): Query<AuthCallbackQuery>, State(state):
}
let cookie_bearer = bearer.clone();
s.complete = Some((username, bearer));
- return redirect_with_session_cookie(&public_url, "/", &cookie_bearer).into_response();
+ return redirect_with_session_cookie(&public_url, "/", &cookie_bearer, &jar).into_response();
}
}
@@ -378,14 +389,20 @@ pub struct ChooseUsernameQuery {
pub error: Option<String>,
}
-pub async fn get_choose_username(Query(q): Query<ChooseUsernameQuery>, State(state): State<AppState>) -> impl IntoResponse {
+pub async fn get_choose_username(
+ Query(q): Query<ChooseUsernameQuery>,
+ State(state): State<AppState>,
+ jar: CookieJar,
+ uri: Uri,
+) -> impl IntoResponse {
let sessions = pending_sessions(&state);
let sessions_read = sessions.read().await;
if !sessions_read.contains_key(&q.session) {
return api_error(StatusCode::NOT_FOUND, "unknown session", None).into_response();
}
drop(sessions_read);
- choose_username_page(&q.session, q.error.as_deref()).into_response()
+ let next = theme_next_from_uri(&uri);
+ choose_username_page(&q.session, q.error.as_deref(), theme_from_jar(&jar), &next).into_response()
}
#[derive(Debug, Deserialize)]
@@ -396,6 +413,7 @@ pub struct ChooseUsernameForm {
pub async fn post_choose_username(
State(state): State<AppState>,
+ jar: CookieJar,
Form(form): Form<ChooseUsernameForm>,
) -> impl IntoResponse {
let canon_user = match parse_username(&form.username) {
@@ -477,7 +495,7 @@ pub async fn post_choose_username(
s.complete = Some((canon_user.clone(), bearer.clone()));
}
- js_signed_in_fragment(&bearer).into_response()
+ js_signed_in_fragment(&bearer, &jar).into_response()
}
/// Start a browser-only OAuth flow (no CLI polling). Sets session cookie on success.
@@ -569,8 +587,9 @@ pub async fn get_pending_session(
.into_response()
}
-pub async fn get_auth_complete() -> impl IntoResponse {
- auth_complete_page()
+pub async fn get_auth_complete(jar: CookieJar, uri: Uri) -> impl IntoResponse {
+ let next = theme_next_from_uri(&uri);
+ auth_complete_page(theme_from_jar(&jar), &next).into_response()
}
pub async fn get_whoami(State(state): State<AppState>, headers: HeaderMap) -> impl IntoResponse {
diff --git a/server/src/api/helpers.rs b/server/src/api/helpers.rs
index 81e2a55fa3abb8609b4099f91a989480336e11eb..9b71491e9f9efc44a2a4beba09be8f64bd2ff2ee 100644
--- a/server/src/api/helpers.rs
+++ b/server/src/api/helpers.rs
@@ -39,6 +39,55 @@ pub fn item_path_for_api(item: &str) -> String {
}
}
+/// Same as [`item_path_for_api`], but for private rooms ontology items are prefixed with
+/// `/r/{short}/{slug}` so the URL matches the web app (`/r/…/~/…` routes).
+pub fn item_path_for_api_in_room(item: &str, room_wire: &str) -> String {
+ let room = room_wire.trim();
+ if room.is_empty() || room == "public" {
+ return item_path_for_api(item);
+ }
+ let Some((short, slug)) = room.split_once('/') else {
+ return item_path_for_api(item);
+ };
+ if short.is_empty() || slug.is_empty() {
+ return item_path_for_api(item);
+ }
+ let Some(c) = CanonicalItemUrl::parse(item) else {
+ return item_path_for_api(item);
+ };
+ let root = CanonicalItemUrl::ontology_root();
+ let item_norm = c.as_str().trim_end_matches('/');
+ let root_norm = root.as_str().trim_end_matches('/');
+ if let Some(tail) = c.tilde_tail() {
+ return if tail.is_empty() {
+ format!("https://slug.social/r/{short}/{slug}/~")
+ } else {
+ format!("https://slug.social/r/{short}/{slug}/~/{}", tail)
+ };
+ }
+ if item_norm == root_norm {
+ return format!("https://slug.social/r/{short}/{slug}/~");
+ }
+ item_path_for_api(item)
+}
+
+/// Absolute thread URL for forum JSON (`/t/…` vs `/r/…/t/…`).
+pub fn forum_thread_web_url(room_wire: &str, thread_tag: &str) -> String {
+ let room = room_wire.trim();
+ let tag = thread_tag.trim().trim_start_matches('#');
+ if room.is_empty() || room == "public" {
+ format!("https://slug.social/t/{tag}")
+ } else if let Some((short, slug)) = room.split_once('/') {
+ if short.is_empty() || slug.is_empty() {
+ format!("https://slug.social/t/{tag}")
+ } else {
+ format!("https://slug.social/r/{short}/{slug}/t/{tag}")
+ }
+ } else {
+ format!("https://slug.social/t/{tag}")
+ }
+}
+
/// Resolve an item path as a first-class canonical path.
pub fn resolve_item(item: &str) -> Result<String, String> {
let canonical = canonicalize_item(item);
@@ -188,3 +237,52 @@ pub fn vote_touches_path(a: &str, b: &str, parent_canon: &str) -> bool {
let under = |item: &str| item == parent_canon || item.starts_with(&format!("{}/", parent_canon));
under(a) || under(b)
}
+
+#[cfg(test)]
+mod wire_url_tests {
+ use super::{forum_thread_web_url, item_path_for_api_in_room};
+
+ #[test]
+ fn public_room_unchanged() {
+ let u = "https://slug.social/~/a/b";
+ assert_eq!(item_path_for_api_in_room(u, "public"), u);
+ }
+
+ #[test]
+ fn private_room_prefixes_ontology() {
+ assert_eq!(
+ item_path_for_api_in_room("https://slug.social/~/topic/x", "9ab12cd/my-room"),
+ "https://slug.social/r/9ab12cd/my-room/~/topic/x"
+ );
+ }
+
+ #[test]
+ fn private_room_ontology_root() {
+ assert_eq!(
+ item_path_for_api_in_room("https://slug.social/~", "9ab12cd/my-room"),
+ "https://slug.social/r/9ab12cd/my-room/~"
+ );
+ assert_eq!(
+ item_path_for_api_in_room("https://slug.social/~/", "9ab12cd/my-room"),
+ "https://slug.social/r/9ab12cd/my-room/~"
+ );
+ }
+
+ #[test]
+ fn external_url_untouched_in_private_room() {
+ let u = "https://example.com/z";
+ assert_eq!(item_path_for_api_in_room(u, "9ab12cd/my-room"), u);
+ }
+
+ #[test]
+ fn forum_web_public_vs_room() {
+ assert_eq!(
+ forum_thread_web_url("public", "debate"),
+ "https://slug.social/t/debate"
+ );
+ assert_eq!(
+ forum_thread_web_url("9ab12cd/my-room", "#debate"),
+ "https://slug.social/r/9ab12cd/my-room/t/debate"
+ );
+ }
+}
diff --git a/server/src/api/rpc.rs b/server/src/api/rpc.rs
index 31f5fcfb4eaf4df0a9cbac532dd3dedfe3611810..5b91f5836625eedbb1cd9423168046e3fb576c17 100644
--- a/server/src/api/rpc.rs
+++ b/server/src/api/rpc.rs
@@ -27,8 +27,9 @@ use crate::{
use super::auth::verify_bearer_principal;
use super::helpers::{
- compute_connectivity_stats, is_pair_voted, item_path_for_api, now_ms, paginate_rankings,
- parse_parent_specs, pick_random_distinct, resolve_item, vote_touches_path,
+ compute_connectivity_stats, forum_thread_web_url, is_pair_voted, item_path_for_api,
+ item_path_for_api_in_room, now_ms, paginate_rankings, parse_parent_specs, pick_random_distinct,
+ resolve_item, vote_touches_path,
};
use super::validate::{normalize_room_and_thread, validate_ingest_document};
@@ -148,6 +149,7 @@ fn compute_scope_rank_changes(
parent: &str,
before: &crate::scope_rank::ChildrenRankings,
after: &crate::scope_rank::ChildrenRankings,
+ room_wire: &str,
) -> Option<ScopeRankChanges> {
fn build_positions(rankings: &crate::scope_rank::ChildrenRankings) -> HashMap<String, Option<RankPosition>> {
let mut map = HashMap::new();
@@ -182,7 +184,7 @@ fn compute_scope_rank_changes(
};
if changed {
changes.push(RankChange {
- item: item_path_for_api(&item),
+ item: item_path_for_api_in_room(&item, room_wire),
before: b,
after: a,
});
@@ -204,7 +206,7 @@ fn compute_scope_rank_changes(
parent: if parent.is_empty() {
"/".to_string()
} else {
- item_path_for_api(parent)
+ item_path_for_api_in_room(parent, room_wire)
},
changes,
})
@@ -256,6 +258,7 @@ fn build_rank_response_for_content(
offset: usize,
limit: Option<usize>,
want_percent: bool,
+ room_wire: &str,
) -> Result<RankResponse, RpcErr> {
let parent_owned = parent.map(|s| s.to_string());
let specs = parse_parent_specs(parent_owned.as_ref());
@@ -299,7 +302,7 @@ fn build_rank_response_for_content(
.ranked
.into_iter()
.map(|r| RankRow {
-
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