Add i18n support (#46)

apps/readest-app/src/utils/book.ts

@@ -80,3 +80,21 @@ export const formatAuthors = (
 export const formatTitle = (title: string | LanguageMap) => {
   return typeof title === 'string' ? title : formatLanguageMap(title);
 };
+
+export const formatDate = (date: string | number | Date | undefined) => {
+  if (!date) return;
+  try {
+    return new Date(date).toLocaleDateString(userLang, {
+      year: 'numeric',
+      month: 'long',
+      day: 'numeric',
+    });
+  } catch {
+    return;
+  }
+};
+
+export const formatSubject = (subject: string | string[] | undefined) => {
+  if (!subject) return '';
+  return Array.isArray(subject) ? subject.join(', ') : subject;
+};

apps/readest-app/src/utils/os.ts

@@ -1,8 +1,10 @@
+import { stubTranslation as _ } from '@/hooks/useTranslation';
+
 export const FILE_REVEAL_LABELS = {
-  macos: 'Reveal in Finder',
-  windows: 'Reveal in File Explorer',
-  linux: 'Reveal in Folder',
-  default: 'Reveal in Folder',
+  macos: _('Reveal in Finder'),
+  windows: _('Reveal in File Explorer'),
+  linux: _('Reveal in Folder'),
+  default: _('Reveal in Folder'),
 };
 
 export type FILE_REVEAL_PLATFORMS = keyof typeof FILE_REVEAL_LABELS;