merge: Add feed of latest posts by followed users (!640)

View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/640

Approved-by: dakkar <dakkar@thenautilus.net>
Approved-by: Marie <github@yuugi.dev>

1 files changed, 95 insertions, 0 deletions

diff --git a/packages/backend/src/server/api/endpoints/notes/following.ts b/packages/backend/src/server/api/endpoints/notes/following.ts
new file mode 100644
index 0000000000..436160f250
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/notes/following.ts
@@ -0,0 +1,95 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { LatestNote, MiFollowing } from '@/models/_.js';
+import type { NotesRepository } from '@/models/_.js';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
+import { DI } from '@/di-symbols.js';
+import { QueryService } from '@/core/QueryService.js';
+
+export const meta = {
+	tags: ['notes'],
+
+	requireCredential: true,
+	kind: 'read:account',
+	allowGet: true,
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			ref: 'Note',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		mutualsOnly: { type: 'boolean', default: false },
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		sinceDate: { type: 'integer' },
+		untilDate: { type: 'integer' },
+	},
+	required: [],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.notesRepository)
+		private notesRepository: NotesRepository,
+
+		private noteEntityService: NoteEntityService,
+		private queryService: QueryService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			let query = this.notesRepository
+				.createQueryBuilder('note')
+				.setParameter('me', me.id)
+
+				// Limit to latest notes
+				.innerJoin(LatestNote, 'latest', 'note.id = latest.note_id')
+
+				// Avoid N+1 queries from the "pack" method
+				.innerJoinAndSelect('note.user', 'user')
+				.leftJoinAndSelect('note.reply', 'reply')
+				.leftJoinAndSelect('note.renote', 'renote')
+				.leftJoinAndSelect('reply.user', 'replyUser')
+				.leftJoinAndSelect('renote.user', 'renoteUser')
+				.leftJoinAndSelect('note.channel', 'channel')
+
+				// Limit to followers
+				.innerJoin(MiFollowing, 'following', 'latest.user_id = following."followeeId"')
+				.andWhere('following."followerId" = :me');
+
+			// Limit to mutuals, if requested
+			if (ps.mutualsOnly) {
+				query = query
+					.innerJoin(MiFollowing, 'mutuals', 'latest.user_id = mutuals."followerId" AND mutuals."followeeId" = :me');
+			}
+
+			// Respect blocks and mutes
+			this.queryService.generateBlockedUserQuery(query, me);
+			this.queryService.generateMutedUserQuery(query, me);
+
+			// Support pagination
+			query = this.queryService
+				.makePaginationQuery(query, ps.sinceId, ps.untilId, ps.sinceDate, ps.untilDate)
+				.orderBy('note.id', 'DESC')
+				.take(ps.limit);
+
+			// Query and return the next page
+			const notes = await query.getMany();
+			return await this.noteEntityService.packMany(notes, me);
+		});
+	}
+}