Custom reaction (#4517)

* Custom reaction

* increase limit of reactions/delete

* リアクションの場合は OS標準の絵文字を使用 を迂回する

* カスタムリアクションを無効にする設定

* fix

* disableCustomReaction --> enableEmojiReaction

* Avoid MFM rendering

* 🎨

* 🎨

* Auto accept

* custom emoji reaction

* Improve usability

* Extract emojiRegex

* Fix

* Clean up

* 🎨

* 🎨

* toDbReaction で reaction は必須に

あとフォールバックは like に

* Clean up

* Make required

* 3eb08748fe (r266241728)

* Refactor

* Allow null

src/models/meta.ts

@@ -194,6 +194,7 @@ export type IMeta = {
 	disableRegistration?: boolean;
 	disableLocalTimeline?: boolean;
 	disableGlobalTimeline?: boolean;
+	enableEmojiReaction?: boolean;
 	hidedTags?: string[];
 	mascotImageUrl?: string;
 	bannerUrl?: string;

src/models/note.ts

@@ -12,6 +12,7 @@ import { packMany as packFileMany, IDriveFile } from './drive-file';
 import Following from './following';
 import Emoji from './emoji';
 import { dbLogger } from '../db/logger';
+import { unique, concat } from '../prelude/array';
 
 const Note = db.get<INote>('notes');
 Note.createIndex('uri', { sparse: true, unique: true });
@@ -242,6 +243,11 @@ export const pack = async (
 
 	const id = _note._id;
 
+	// Some counts
+	_note.renoteCount = _note.renoteCount || 0;
+	_note.repliesCount = _note.repliesCount || 0;
+	_note.reactionCounts = _note.reactionCounts || {};
+
 	// _note._userを消す前か、_note.userを解決した後でないとホストがわからない
 	if (_note._user) {
 		const host = _note._user.host;
@@ -253,6 +259,8 @@ export const pack = async (
 				fields: { _id: false }
 			});
 		} else {
+			_note.emojis = unique(concat([_note.emojis, Object.keys(_note.reactionCounts)]));
+
 			_note.emojis = Emoji.find({
 				name: { $in: _note.emojis },
 				host: host
@@ -290,11 +298,6 @@ export const pack = async (
 	// Populate files
 	_note.files = packFileMany(_note.fileIds || []);
 
-	// Some counts
-	_note.renoteCount = _note.renoteCount || 0;
-	_note.repliesCount = _note.repliesCount || 0;
-	_note.reactionCounts = _note.reactionCounts || {};
-
 	// 後方互換性のため
 	_note.mediaIds = _note.fileIds;
 	_note.media = _note.files;