Feat: No websocket mode (#15851)

* wip

* wip

* wip

* wip

* Update MkTimeline.vue

* wip

* wip

* wip

* Update MkTimeline.vue

* Update use-pagination.ts

* wip

* wip

* Update MkTimeline.vue

* Update MkTimeline.vue

* wip

* wip

* Update MkTimeline.vue

* Update MkTimeline.vue

* Update MkTimeline.vue

* wip

* Update use-pagination.ts

* wip

* Update use-pagination.ts

* Update MkNotifications.vue

* Update MkNotifications.vue

* wip

* wip

* wip

* Update use-note-capture.ts

* Update use-note-capture.ts

* Update use-note-capture.ts

* wip

* wip

* wip

* wip

* Update MkNoteDetailed.vue

* wip

* wip

* Update MkTimeline.vue

* wip

* fix

* Update MkTimeline.vue

* wip

* test

* Revert "test"

This reverts commit 3375619396c54dcda5e564eb1da444c2391208c9.

* Update use-pagination.ts

* test

* Revert "test"

This reverts commit 42c53c830e28485d2fb49061fa7cdeee31bc6a22.

* test

* Revert "test"

This reverts commit c4f8cda4aa1cec9d1eb97557145f3ad3d2d0e469.

* Update style.scss

* Update MkTimeline.vue

* Update MkTimeline.vue

* Update MkTimeline.vue

* ✌️

* Update MkTimeline.vue

* wip

* wip

* test

* Update MkPullToRefresh.vue

* Update MkPullToRefresh.vue

* Update MkPullToRefresh.vue

* Update MkPullToRefresh.vue

* Update MkTimeline.vue

* wip

* tweak navbar

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* Update home.vue

* wip

* refactor

* wip

* wip

* Update note.vue

* Update navbar.vue

* Update MkPullToRefresh.vue

* Update MkPullToRefresh.vue

* Update MkPullToRefresh.vue

* wip

* Update MkStreamingNotificationsTimeline.vue

* Update use-pagination.ts

* wip

* improve perf

* wip

* Update MkNotesTimeline.vue

* wip

* megre

* Update use-pagination.ts

* Update use-pagination.ts

* Update MkStreamingNotesTimeline.vue

* Update use-pagination.ts

* Update CHANGELOG.md

* Update CHANGELOG.md

* Update CHANGELOG.md

3 files changed, 86 insertions, 0 deletions

diff --git a/packages/backend/src/core/entities/NoteEntityService.ts b/packages/backend/src/core/entities/NoteEntityService.ts
index 97f1c3d739..491e63d417 100644
--- a/packages/backend/src/core/entities/NoteEntityService.ts
+++ b/packages/backend/src/core/entities/NoteEntityService.ts
@@ -593,4 +593,42 @@ export class NoteEntityService implements OnModuleInit {
 			relations: ['user'],
 		});
 	}
+
+	@bindThis
+	public async fetchDiffs(noteIds: MiNote['id'][]) {
+		if (noteIds.length === 0) return [];
+
+		const notes = await this.notesRepository.find({
+			where: {
+				id: In(noteIds),
+			},
+			select: {
+				id: true,
+				userHost: true,
+				reactions: true,
+				reactionAndUserPairCache: true,
+			},
+		});
+
+		const bufferedReactionsMap = this.meta.enableReactionsBuffering ? await this.reactionsBufferingService.getMany(noteIds) : null;
+
+		const packings = notes.map(note => {
+			const bufferedReactions = bufferedReactionsMap?.get(note.id);
+			//const reactionAndUserPairCache = note.reactionAndUserPairCache.concat(bufferedReactions.pairs.map(x => x.join('/')));
+
+			const reactions = this.reactionService.convertLegacyReactions(this.reactionsBufferingService.mergeReactions(note.reactions, bufferedReactions?.deltas ?? {}));
+
+			const reactionEmojiNames = Object.keys(reactions)
+				.filter(x => x.startsWith(':') && x.includes('@') && !x.includes('@.')) // リモートカスタム絵文字のみ
+				.map(x => this.reactionService.decodeReaction(x).reaction.replaceAll(':', ''));
+
+			return this.customEmojiService.populateEmojis(reactionEmojiNames, note.userHost).then(reactionEmojis => ({
+				id: note.id,
+				reactions,
+				reactionEmojis,
+			}));
+		});
+
+		return await Promise.all(packings);
+	}
 }
diff --git a/packages/backend/src/server/api/endpoint-list.ts b/packages/backend/src/server/api/endpoint-list.ts
index e5170aa2dc..bd466b3cad 100644
--- a/packages/backend/src/server/api/endpoint-list.ts
+++ b/packages/backend/src/server/api/endpoint-list.ts
@@ -323,6 +323,7 @@ export * as 'notes/replies' from './endpoints/notes/replies.js';
 export * as 'notes/search' from './endpoints/notes/search.js';
 export * as 'notes/search-by-tag' from './endpoints/notes/search-by-tag.js';
 export * as 'notes/show' from './endpoints/notes/show.js';
+export * as 'notes/show-partial-bulk' from './endpoints/notes/show-partial-bulk.js';
 export * as 'notes/state' from './endpoints/notes/state.js';
 export * as 'notes/thread-muting/create' from './endpoints/notes/thread-muting/create.js';
 export * as 'notes/thread-muting/delete' from './endpoints/notes/thread-muting/delete.js';
diff --git a/packages/backend/src/server/api/endpoints/notes/show-partial-bulk.ts b/packages/backend/src/server/api/endpoints/notes/show-partial-bulk.ts
new file mode 100644
index 0000000000..87b368e17e
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/notes/show-partial-bulk.ts
@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
+import { GetterService } from '@/server/api/GetterService.js';
+import { ApiError } from '../../error.js';
+
+export const meta = {
+	tags: ['notes'],
+
+	requireCredential: false,
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+		},
+	},
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		noteIds: { type: 'array', items: { type: 'string', format: 'misskey:id' }, maxItems: 100, minItems: 1 },
+	},
+	required: ['noteIds'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private noteEntityService: NoteEntityService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			return await this.noteEntityService.fetchDiffs(ps.noteIds);
+		});
+	}
+}