chore(web): unified caches under trait

Cargo.lock

@@ -4892,6 +4892,7 @@ name = "upub-web"
 version = "0.1.0"
 dependencies = [
  "apb",
+ "async-trait",
  "chrono",
  "console_error_panic_hook",
  "dashmap",

web/Cargo.toml

@@ -12,6 +12,8 @@ repository = "https://git.alemi.dev/upub.git"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+async-trait = "0.1"
+lazy_static = "1.4"
 tracing = "0.1"
 tracing-subscriber = "0.3"
 tracing-subscriber-wasm = "0.1"
@@ -29,7 +31,6 @@ apb = { path = "../apb", features = ["unstructured", "activitypub-fe", "activity
 uriproxy = { path = "../utils/uriproxy/" }
 mdhtml = { path = "../utils/mdhtml/" }
 futures = "0.3.30"
-lazy_static = "1.4"
 chrono = { version = "0.4", features = ["serde"] }
 jrd = "0.1"
 tld = "2.35"

web/src/actors/header.rs

@@ -19,7 +19,7 @@ pub fn ActorHeader() -> impl IntoView {
 							.await
 							.map_err(|e| e.to_string())?;
 						let user = std::sync::Arc::new(user);
-						cache::OBJECTS.put(Uri::full(U::Actor, &id), user.clone());
+						cache::OBJECTS.store(&Uri::full(U::Actor, &id), user.clone());
 						Ok(user)
 					},
 				}

web/src/components/object.rs

@@ -272,7 +272,7 @@ pub fn LikeButton(
 										new = new.set_likes(apb::Node::object(likes.clone().set_total_items(Some(count + 1))));
 									}
 								}
-								cache::OBJECTS.put(target, Arc::new(new));
+								cache::OBJECTS.store(&target, Arc::new(new));
 							}
 						},
 						Err(e) => tracing::error!("failed sending like: {e}"),

web/src/config.rs

@@ -46,6 +46,7 @@ pub struct FiltersConfig {
 impl FiltersConfig {
 	pub fn visible(&self, item: &crate::Object) -> bool {
 		use apb::{Object, Activity};
+		use crate::Cache;
 
 		let type_filter = match item.object_type().unwrap_or(apb::ObjectType::Object) {
 			apb::ObjectType::Note | apb::ObjectType::Document(_) => self.orphans,

web/src/lib.rs

@@ -23,38 +23,73 @@ pub const DEFAULT_AVATAR_URL: &str = "https://cdn.alemi.dev/social/gradient.png"
 pub const NAME: &str = "μ";
 pub const DEFAULT_COLOR: &str = "#BF616A";
 
-use std::sync::Arc;
+use std::{ops::Deref, sync::Arc};
 use uriproxy::UriClass;
 
-pub mod cache {
-	use super::{ObjectCache, WebfingerCache};
-	lazy_static::lazy_static! {
-		pub static ref OBJECTS: ObjectCache = ObjectCache::default();
-		pub static ref WEBFINGER: WebfingerCache = WebfingerCache::default();
-	}
-}
-
-
-}
-
 pub type Object = Arc<serde_json::Value>;
 
-#[derive(Debug, Clone, Default)]
-pub struct ObjectCache(Arc<dashmap::DashMap<String, Object>>);
+pub mod cache {
+	use super::DashmapCache;
+	lazy_static::lazy_static! {
+		pub static ref OBJECTS: DashmapCache<super::Object> = DashmapCache::default();
+		pub static ref WEBFINGER: DashmapCache<String> = DashmapCache::default();
+	}
+}
 
-impl ObjectCache {
-	pub fn get(&self, k: &str) -> Option<Object> {
-		self.0.get(k).map(|x| x.clone())
+#[derive(Debug)]
+pub enum LookupStatus<T> {
+	Resolving,
+	Found(T),
+	NotFound,
+}
+
+impl<T> LookupStatus<T> {
+	fn inner(&self) -> Option<&T> {
+		if let Self::Found(x) = self {
+			return Some(x);
+		}
+		None
+	}
+}
+
+pub trait Cache {
+	type Item;
+
+	fn lookup(&self, key: &str) -> Option<impl Deref<Target = LookupStatus<Self::Item>>>;
+	fn store(&self, key: &str, value: Self::Item) -> Option<Self::Item>;
+
+	fn get(&self, key: &str) -> Option<Self::Item> where Self::Item : Clone {
+		Some(self.lookup(key)?.deref().inner()?.clone())
 	}
 
-	pub fn get_or(&self, k: &str, or: Object) -> Object {
-		self.get(k).unwrap_or(or)
+	fn get_or(&self, key: &str, or: Self::Item) -> Self::Item where Self::Item : Clone {
+		self.get(key).unwrap_or(or)
 	}
 
-	pub fn put(&self, k: String, v: Object) {
-		self.0.insert(k, v);
+	fn get_or_default(&self, key: &str) -> Self::Item where Self::Item : Clone + Default {
+		self.get(key).unwrap_or_default()
+	}
+}
+
+#[derive(Default, Clone)]
+pub struct DashmapCache<T>(Arc<dashmap::DashMap<String, LookupStatus<T>>>);
+
+impl<T> Cache for DashmapCache<T> {
+	type Item = T;
+
+	fn lookup(&self, key: &str) -> Option<impl Deref<Target = LookupStatus<Self::Item>>> {
+		self.0.get(key)
 	}
 
+	fn store(&self, key: &str, value: Self::Item) -> Option<Self::Item> {
+		self.0.insert(key.to_string(), LookupStatus::Found(value))
+			.and_then(|x| if let LookupStatus::Found(x) = x { Some(x) } else { None } )
+	}
+}
+
+// TODO would be cool unifying a bit the fetch code too
+
+impl DashmapCache<Object> {
 	pub async fn fetch(&self, k: &str, kind: UriClass) -> reqwest::Result<Object> {
 		match self.get(k) {
 			Some(x) => Ok(x),
@@ -63,43 +98,30 @@ impl ObjectCache {
 					.await?
 					.json::<serde_json::Value>()
 					.await?;
-				self.put(k.to_string(), Arc::new(obj));
+				self.store(k, Arc::new(obj));
 				Ok(self.get(k).expect("not found in cache after insertion"))
 			}
 		}
 	}
 }
 
-#[derive(Debug, Clone)]
-enum LookupStatus {
-	Resolving,
-	Found(String),
-	NotFound,
-}
-
-#[derive(Debug, Clone, Default)]
-pub struct WebfingerCache(Arc<dashmap::DashMap<String, LookupStatus>>);
-
-impl WebfingerCache {
+impl DashmapCache<String> {
 	pub async fn blocking_resolve(&self, user: &str, domain: &str) -> Option<String> {
-		if let Some(x) = self.get(user, domain) { return Some(x); }
+		if let Some(x) = self.resource(user, domain) { return Some(x); }
 		self.fetch(user, domain).await;
-		self.get(user, domain)
+		self.resource(user, domain)
 	}
 
 	pub fn resolve(&self, user: &str, domain: &str) -> Option<String> {
-		if let Some(x) = self.get(user, domain) { return Some(x); }
+		if let Some(x) = self.resource(user, domain) { return Some(x); }
 		let (_self, user, domain) = (self.clone(), user.to_string(), domain.to_string());
 		leptos::spawn_local(async move { _self.fetch(&user, &domain).await });
 		None
 	}
 
-	fn get(&self, user: &str, domain: &str) -> Option<String> {
+	fn resource(&self, user: &str, domain: &str) -> Option<String> {
 		let query = format!("{user}@{domain}");
-		match self.0.get(&query).map(|x| (*x).clone())? {
-			LookupStatus::Resolving | LookupStatus::NotFound => None,
-			LookupStatus::Found(x) => Some(x),
-		}
+		self.get(&query)
 	}
 
 	async fn fetch(&self, user: &str, domain: &str) {

web/src/objects/view.rs

@@ -28,10 +28,10 @@ pub fn ObjectView() -> impl IntoView {
 						if let Ok(user) = Http::fetch::<serde_json::Value>(
 							&Uri::api(U::Actor, author, true), auth
 						).await {
-							cache::OBJECTS.put(Uri::full(U::Actor, author), Arc::new(user));
+							cache::OBJECTS.store(&Uri::full(U::Actor, author), Arc::new(user));
 						}
 					}
-					cache::OBJECTS.put(Uri::full(U::Object, &oid), obj.clone());
+					cache::OBJECTS.store(&Uri::full(U::Object, &oid), obj.clone());
 					obj
 				}
 			};

web/src/prelude.rs

@@ -1,7 +1,7 @@
 pub use crate::{
 	URL_BASE,
 	Http, Uri,
-	cache,
+	Cache, cache, // TODO move Cache under cache
 	app::{Feeds, Loader},
 	auth::Auth,
 	page::*,

web/src/timeline/mod.rs

@@ -115,7 +115,7 @@ async fn process_activities(activities: Vec<serde_json::Value>, auth: Auth) -> V
 				actors_seen.insert(attributed_to);
 			}
 			if let Ok(object_uri) = object.id() {
-				cache::OBJECTS.put(object_uri.to_string(), Arc::new(object.clone()));
+				cache::OBJECTS.store(object_uri, Arc::new(object.clone()));
 			} else {
 				tracing::warn!("embedded object without id: {object:?}");
 			}
@@ -136,8 +136,8 @@ async fn process_activities(activities: Vec<serde_json::Value>, auth: Auth) -> V
 		let object_id = activity.object().id().str();
 		if let Some(activity_id) = activity.id().str() {
 			out.push(activity_id.to_string());
-			cache::OBJECTS.put(
-				activity_id.to_string(),
+			cache::OBJECTS.store(
+				&activity_id,
 				Arc::new(activity.clone().set_object(apb::Node::maybe_link(object_id)))
 			);
 		} else if let Some(object_id) = activity.object().id().str() {
@@ -170,7 +170,7 @@ async fn process_activities(activities: Vec<serde_json::Value>, auth: Auth) -> V
 
 async fn fetch_and_update(kind: U, id: String, auth: Auth) {
 	match Http::fetch(&Uri::api(kind, &id, false), auth).await {
-		Ok(data) => cache::OBJECTS.put(id, Arc::new(data)),
+		Ok(data) => { cache::OBJECTS.store(&id, Arc::new(data)); },
 		Err(e) => console_warn(&format!("could not fetch '{id}': {e}")),
 	}
 }