refactor(sw): use fully typed locales (#14470)

* refactor(sw): use fully typed locales

* fix(backend): enumerate achievement notification type

4 files changed, 31 insertions, 68 deletions

diff --git a/packages/sw/src/scripts/create-notification.ts b/packages/sw/src/scripts/create-notification.ts
index 7d28d8a694..02d9b07767 100644
--- a/packages/sw/src/scripts/create-notification.ts
+++ b/packages/sw/src/scripts/create-notification.ts
@@ -41,11 +41,10 @@ export async function createNotification<K extends keyof PushNotificationDataMap
 
 async function composeNotification(data: PushNotificationDataMap[keyof PushNotificationDataMap]): Promise<[string, NotificationOptions] | null> {
 	const i18n = await (swLang.i18n ?? swLang.fetchLocale());
-	const { t } = i18n;
 	switch (data.type) {
 		/*
 		case 'driveFileCreated': // TODO (Server Side)
-			return [t('_notification.fileUploaded'), {
+			return [i18n.ts._notification.fileUploaded, {
 				body: body.name,
 				icon: body.url,
 				data
@@ -58,7 +57,7 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 					const account = await getAccountFromId(data.userId);
 					if (!account) return null;
 					const userDetail = await cli.request('users/show', { userId: data.body.userId }, account.token);
-					return [t('_notification.youWereFollowed'), {
+					return [i18n.ts._notification.youWereFollowed, {
 						body: getUserName(data.body.user),
 						icon: data.body.user.avatarUrl,
 						badge: iconUrl('user-plus'),
@@ -66,14 +65,14 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 						actions: userDetail.isFollowing ? [] : [
 							{
 								action: 'follow',
-								title: t('_notification._actions.followBack'),
+								title: i18n.ts._notification._actions.followBack,
 							},
 						],
 					}];
 				}
 
 				case 'mention':
-					return [t('_notification.youGotMention', { name: getUserName(data.body.user) }), {
+					return [i18n.tsx._notification.youGotMention({ name: getUserName(data.body.user) }), {
 						body: data.body.note.text ?? '',
 						icon: data.body.user.avatarUrl,
 						badge: iconUrl('at'),
@@ -81,13 +80,13 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 						actions: [
 							{
 								action: 'reply',
-								title: t('_notification._actions.reply'),
+								title: i18n.ts._notification._actions.reply,
 							},
 						],
 					}];
 
 				case 'reply':
-					return [t('_notification.youGotReply', { name: getUserName(data.body.user) }), {
+					return [i18n.tsx._notification.youGotReply({ name: getUserName(data.body.user) }), {
 						body: data.body.note.text ?? '',
 						icon: data.body.user.avatarUrl,
 						badge: iconUrl('arrow-back-up'),
@@ -95,13 +94,13 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 						actions: [
 							{
 								action: 'reply',
-								title: t('_notification._actions.reply'),
+								title: i18n.ts._notification._actions.reply,
 							},
 						],
 					}];
 
 				case 'renote':
-					return [t('_notification.youRenoted', { name: getUserName(data.body.user) }), {
+					return [i18n.tsx._notification.youRenoted({ name: getUserName(data.body.user) }), {
 						body: data.body.note.text ?? '',
 						icon: data.body.user.avatarUrl,
 						badge: iconUrl('repeat'),
@@ -115,7 +114,7 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 					}];
 
 				case 'quote':
-					return [t('_notification.youGotQuote', { name: getUserName(data.body.user) }), {
+					return [i18n.tsx._notification.youGotQuote({ name: getUserName(data.body.user) }), {
 						body: data.body.note.text ?? '',
 						icon: data.body.user.avatarUrl,
 						badge: iconUrl('quote'),
@@ -123,19 +122,19 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 						actions: [
 							{
 								action: 'reply',
-								title: t('_notification._actions.reply'),
+								title: i18n.ts._notification._actions.reply,
 							},
 							...((data.body.note.visibility === 'public' || data.body.note.visibility === 'home') ? [
 								{
 									action: 'renote',
-									title: t('_notification._actions.renote'),
+									title: i18n.ts._notification._actions.renote,
 								},
 							] : []),
 						],
 					}];
 
 				case 'note':
-					return [t('_notification.newNote') + ': ' + getUserName(data.body.user), {
+					return [i18n.ts._notification.newNote + ': ' + getUserName(data.body.user), {
 						body: data.body.note.text ?? '',
 						icon: data.body.user.avatarUrl,
 						data,
@@ -178,7 +177,7 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 				}
 
 				case 'receiveFollowRequest':
-					return [t('_notification.youReceivedFollowRequest'), {
+					return [i18n.ts._notification.youReceivedFollowRequest, {
 						body: getUserName(data.body.user),
 						icon: data.body.user.avatarUrl,
 						badge: iconUrl('user-plus'),
@@ -186,17 +185,17 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 						actions: [
 							{
 								action: 'accept',
-								title: t('accept'),
+								title: i18n.ts.accept,
 							},
 							{
 								action: 'reject',
-								title: t('reject'),
+								title: i18n.ts.reject,
 							},
 						],
 					}];
 
 				case 'followRequestAccepted':
-					return [t('_notification.yourFollowRequestAccepted'), {
+					return [i18n.ts._notification.yourFollowRequestAccepted, {
 						body: getUserName(data.body.user),
 						icon: data.body.user.avatarUrl,
 						badge: iconUrl('circle-check'),
@@ -204,15 +203,15 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 					}];
 
 				case 'achievementEarned':
-					return [t('_notification.achievementEarned'), {
-						body: t(`_achievements._types._${data.body.achievement}.title`),
+					return [i18n.ts._notification.achievementEarned, {
+						body: i18n.ts._achievements._types[`_${data.body.achievement}`].title,
 						badge: iconUrl('medal'),
 						data,
 						tag: `achievement:${data.body.achievement}`,
 					}];
 
 				case 'pollEnded':
-					return [t('_notification.pollEnded'), {
+					return [i18n.ts._notification.pollEnded, {
 						body: data.body.note.text ?? '',
 						badge: iconUrl('chart-arrows'),
 						data,
@@ -226,8 +225,8 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 					}];
 
 				case 'test':
-					return [t('_notification.testNotification'), {
-						body: t('_notification.notificationWillBeDisplayedLikeThis'),
+					return [i18n.ts._notification.testNotification, {
+						body: i18n.ts._notification.notificationWillBeDisplayedLikeThis,
 						badge: iconUrl('bell'),
 						data,
 					}];
@@ -236,7 +235,7 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 					return null;
 			}
 		case 'unreadAntennaNote':
-			return [t('_notification.unreadAntennaNote', { name: data.body.antenna.name }), {
+			return [i18n.tsx._notification.unreadAntennaNote({ name: data.body.antenna.name }), {
 				body: `${getUserName(data.body.note.user)}: ${data.body.note.text ?? ''}`,
 				icon: data.body.note.user.avatarUrl,
 				badge: iconUrl('antenna'),
@@ -252,7 +251,6 @@ async function composeNotification(data: PushNotificationDataMap[keyof PushNotif
 export async function createEmptyNotification(): Promise<void> {
 	return new Promise<void>(async res => {
 		const i18n = await (swLang.i18n ?? swLang.fetchLocale());
-		const { t } = i18n;
 
 		await globalThis.registration.showNotification(
 			(new URL(origin)).host,
@@ -264,11 +262,11 @@ export async function createEmptyNotification(): Promise<void> {
 				actions: [
 					{
 						action: 'markAllAsRead',
-						title: t('markAllAsRead'),
+						title: i18n.ts.markAllAsRead,
 					},
 					{
 						action: 'settings',
-						title: t('notificationSettings'),
+						title: i18n.ts.notificationSettings,
 					},
 				],
 				data: {},
diff --git a/packages/sw/src/scripts/i18n.ts b/packages/sw/src/scripts/i18n.ts
deleted file mode 100644
index 77b955dbe8..0000000000
--- a/packages/sw/src/scripts/i18n.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-export type Locale = { [key: string]: string | Locale };
-
-export class I18n<T extends Locale = Locale> {
-	public ts: T;
-
-	constructor(locale: T) {
-		this.ts = locale;
-
-		//#region BIND
-		this.t = this.t.bind(this);
-		//#endregion
-	}
-
-	// string にしているのは、ドット区切りでのパス指定を許可するため
-	// なるべくこのメソッド使うよりもlocale直接参照の方がvueのキャッシュ効いてパフォーマンスが良いかも
-	public t(key: string, args?: Record<string, string>): string {
-		try {
-			let str = key.split('.').reduce<Locale | Locale[keyof Locale]>((o, i) => o[i], this.ts);
-			if (typeof str !== 'string') throw new Error();
-
-			if (args) {
-				for (const [k, v] of Object.entries(args)) {
-					str = str.replace(`{${k}}`, v);
-				}
-			}
-			return str;
-		} catch (err) {
-			console.warn(`missing localization '${key}'`);
-			return key;
-		}
-	}
-}
diff --git a/packages/sw/src/scripts/lang.ts b/packages/sw/src/scripts/lang.ts
index 6fccedd746..0db4cc6381 100644
--- a/packages/sw/src/scripts/lang.ts
+++ b/packages/sw/src/scripts/lang.ts
@@ -7,7 +7,8 @@
  * Language manager for SW
  */
 import { get, set } from 'idb-keyval';
-import { I18n, type Locale } from '@/scripts/i18n.js';
+import { I18n } from '../../../frontend/src/scripts/i18n.js';
+import type { Locale } from '../../../../locales/index.js';
 
 class SwLang {
 	public cacheName = `mk-cache-${_VERSION_}`;
@@ -23,7 +24,7 @@ class SwLang {
 		return this.fetchLocale();
 	}
 
-	public i18n: Promise<I18n> | null = null;
+	public i18n: Promise<I18n<Locale>> | null = null;
 
 	public fetchLocale(): Promise<I18n<Locale>> {
 		return (this.i18n = this._fetch());
diff --git a/packages/sw/src/sw.ts b/packages/sw/src/sw.ts
index cc79d88713..7a0010992e 100644
--- a/packages/sw/src/sw.ts
+++ b/packages/sw/src/sw.ts
@@ -6,7 +6,8 @@
 import { get } from 'idb-keyval';
 import * as Misskey from 'misskey-js';
 import type { PushNotificationDataMap } from '@/types.js';
-import type { I18n, Locale } from '@/scripts/i18n.js';
+import type { I18n } from '../../frontend/src/scripts/i18n.js';
+import type { Locale } from '../../../locales/index.js';
 import { createEmptyNotification, createNotification } from '@/scripts/create-notification.js';
 import { swLang } from '@/scripts/lang.js';
 import * as swos from '@/scripts/operations.js';
@@ -30,8 +31,8 @@ globalThis.addEventListener('activate', ev => {
 async function offlineContentHTML() {
 	const i18n = await (swLang.i18n ?? swLang.fetchLocale()) as Partial<I18n<Locale>>;
 	const messages = {
-		title: i18n.ts?._offlineScreen?.title ?? 'Offline - Could not connect to server',
-		header: i18n.ts?._offlineScreen?.header ?? 'Could not connect to server',
+		title: i18n.ts?._offlineScreen.title ?? 'Offline - Could not connect to server',
+		header: i18n.ts?._offlineScreen.header ?? 'Could not connect to server',
 		reload: i18n.ts?.reload ?? 'Reload',
 	};