refactor: 💥 properly deprecate legacy reactions

packages/backend/src/misc/reaction-lib.ts

@@ -4,58 +4,22 @@ import { Emojis } from "@/models/index.js";
 import { toPunyNullable } from "./convert-host.js";
 import { IsNull } from "typeorm";
 
-const legacies = new Map([
-	["like", "👍"],
-	["love", "❤️"],
-	["laugh", "😆"],
-	["hmm", "🤔"],
-	["surprise", "😮"],
-	["congrats", "🎉"],
-	["angry", "💢"],
-	["confused", "😥"],
-	["rip", "😇"],
-	["pudding", "🍮"],
-	["star", "⭐"],
-]);
-
 export async function getFallbackReaction() {
 	const meta = await fetchMeta();
 	return meta.defaultReaction;
 }
 
-export function convertLegacyReactions(reactions: Record<string, number>) {
-	const _reactions = new Map();
-	const decodedReactions = new Map();
+export function convertReactions(reactions: Record<string, number>) {
+	const result = new Map();
 
 	for (const reaction in reactions) {
 			if (reactions[reaction] <= 0) continue;
 
-		let decodedReaction;
-		if (decodedReactions.has(reaction)) {
-			decodedReaction = decodedReactions.get(reaction);
-		} else {
-			decodedReaction = decodeReaction(reaction);
-			decodedReactions.set(reaction, decodedReaction);
+			const decoded = decodeReaction(reaction).reaction;
+			result.set(decoded, (result.get(decoded) || 0) + reactions[reaction]);
 	}
 
-		let emoji = legacies.get(decodedReaction.reaction);
-		if (emoji) {
-			_reactions.set(emoji, (_reactions.get(emoji) || 0) + reactions[reaction]);
-		} else {
-			_reactions.set(
-				reaction,
-				(_reactions.get(reaction) || 0) + reactions[reaction],
-			);
-		}
-	}
-
-	const _reactions2 = new Map();
-	for (const [reaction, count] of _reactions) {
-		const decodedReaction = decodedReactions.get(reaction);
-		_reactions2.set(decodedReaction.reaction, count);
-	}
-
-	return Object.fromEntries(_reactions2);
+	return Object.fromEntries(result);
 }
 
 export async function toDbReaction(
@@ -66,9 +30,7 @@ export async function toDbReaction(
 
 	reacterHost = toPunyNullable(reacterHost);
 
-	// Convert string-type reactions to unicode
-	const emoji = legacies.get(reaction) || (reaction === "♥️" ? "❤️" : null);
-	if (emoji) return emoji;
+	if (reaction === "♥️") return "❤️";
 
 	// Allow unicode reactions
 	const match = emojiRegex.exec(reaction);
@@ -129,8 +91,6 @@ export function decodeReaction(str: string): DecodedReaction {
 	};
 }
 
-export function convertLegacyReaction(reaction: string): string {
-	const decoded = decodeReaction(reaction).reaction;
-	if (legacies.has(decoded)) return legacies.get(decoded)!;
-	return decoded;
+export function convertToDecoded(reaction: string): string {
+	return decodeReaction(reaction).reaction;
 }

packages/backend/src/models/repositories/note-reaction.ts

@@ -2,7 +2,7 @@ import { db } from "@/db/postgre.js";
 import { NoteReaction } from "@/models/entities/note-reaction.js";
 import { Notes, Users } from "../index.js";
 import type { Packed } from "@/misc/schema.js";
-import { convertLegacyReaction } from "@/misc/reaction-lib.js";
+import { convertToDecoded } from "@/misc/reaction-lib.js";
 import type { User } from "@/models/entities/user.js";
 
 export const NoteReactionRepository = db.getRepository(NoteReaction).extend({
@@ -27,7 +27,7 @@ export const NoteReactionRepository = db.getRepository(NoteReaction).extend({
 			id: reaction.id,
 			createdAt: reaction.createdAt.toISOString(),
 			user: await Users.pack(reaction.user ?? reaction.userId, me),
-			type: convertLegacyReaction(reaction.reaction),
+			type: convertToDecoded(reaction.reaction),
 			...(opts.withNote
 				? {
 						// may throw error
@@ -41,7 +41,7 @@ export const NoteReactionRepository = db.getRepository(NoteReaction).extend({
 		src: NoteReaction[],
 		me?: { id: User["id"] } | null | undefined,
 		options?: {
-			withNote: booleam;
+			withNote: boolean;
 		},
 	): Promise<Packed<"NoteReaction">[]> {
 		const reactions = await Promise.allSettled(

packages/backend/src/models/repositories/note.ts

@@ -15,8 +15,8 @@ import type { Packed } from "@/misc/schema.js";
 import { nyaize } from "@/misc/nyaize.js";
 import { awaitAll } from "@/prelude/await-all.js";
 import {
-	convertLegacyReaction,
-	convertLegacyReactions,
+	convertToDecoded,
+	convertReactions,
 	decodeReaction,
 } from "@/misc/reaction-lib.js";
 import type { NoteReaction } from "@/models/entities/note-reaction.js";
@@ -77,7 +77,7 @@ async function populateMyReaction(
 	if (_hint_?.myReactions) {
 		const reaction = _hint_.myReactions.get(note.id);
 		if (reaction) {
-			return convertLegacyReaction(reaction.reaction);
+			return convertToDecoded(reaction.reaction);
 		} else if (reaction === null) {
 			return undefined;
 		}
@@ -90,7 +90,7 @@ async function populateMyReaction(
 	});
 
 	if (reaction) {
-		return convertLegacyReaction(reaction.reaction);
+		return convertToDecoded(reaction.reaction);
 	}
 
 	return undefined;
@@ -221,7 +221,7 @@ export const NoteRepository = db.getRepository(Note).extend({
 				note.visibility === "specified" ? note.visibleUserIds : undefined,
 			renoteCount: note.renoteCount,
 			repliesCount: note.repliesCount,
-			reactions: convertLegacyReactions(note.reactions),
+			reactions: convertReactions(note.reactions),
 			reactionEmojis: reactionEmoji,
 			emojis: noteEmoji,
 			tags: note.tags.length > 0 ? note.tags : undefined,