merge: all upstream changes

packages/backend/src/misc/is-user-related.ts

@@ -3,16 +3,16 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-export function isUserRelated(note: any, userIds: Set<string>): boolean {
-	if (userIds.has(note.userId)) {
+export function isUserRelated(note: any, userIds: Set<string>, ignoreAuthor = false): boolean {
+	if (userIds.has(note.userId) && !ignoreAuthor) {
 		return true;
 	}
 
-	if (note.reply != null && userIds.has(note.reply.userId)) {
+	if (note.reply != null && note.reply.userId !== note.userId && userIds.has(note.reply.userId)) {
 		return true;
 	}
 
-	if (note.renote != null && userIds.has(note.renote.userId)) {
+	if (note.renote != null && note.renote.userId !== note.userId && userIds.has(note.renote.userId)) {
 		return true;
 	}
 

packages/backend/src/misc/loader.ts

@@ -0,0 +1,52 @@
+export type FetchFunction<K, V> = (key: K) => Promise<V>;
+
+type ResolveReject<V> = Parameters<ConstructorParameters<typeof Promise<V>>[0]>;
+
+type ResolverPair<V> = {
+	resolve: ResolveReject<V>[0];
+	reject: ResolveReject<V>[1];
+};
+
+export class DebounceLoader<K, V> {
+	private resolverMap = new Map<K, ResolverPair<V>>();
+	private promiseMap = new Map<K, Promise<V>>();
+	private resolvedPromise = Promise.resolve();
+	constructor(private loadFn: FetchFunction<K, V>) {}
+
+	public load(key: K): Promise<V> {
+		const promise = this.promiseMap.get(key);
+		if (typeof promise !== 'undefined') {
+			return promise;
+		}
+
+		const isFirst = this.promiseMap.size === 0;
+		const newPromise = new Promise<V>((resolve, reject) => {
+			this.resolverMap.set(key, { resolve, reject });
+		});
+		this.promiseMap.set(key, newPromise);
+
+		if (isFirst) {
+			this.enqueueDebouncedLoadJob();
+		}
+
+		return newPromise;
+	}
+
+	private runDebouncedLoad(): void {
+		const resolvers = [...this.resolverMap];
+		this.resolverMap.clear();
+		this.promiseMap.clear();
+
+		for (const [key, { resolve, reject }] of resolvers) {
+			this.loadFn(key).then(resolve, reject);
+		}
+	}
+
+	private enqueueDebouncedLoadJob(): void {
+		this.resolvedPromise.then(() => {
+			process.nextTick(() => {
+				this.runDebouncedLoad();
+			});
+		});
+	}
+}