feat: change i18n configuration

app/app.vue

@@ -1,8 +1,10 @@
 <script setup lang="ts">
+import type { Directions } from '@nuxtjs/i18n'
 import { useEventListener } from '@vueuse/core'
 
 const route = useRoute()
 const router = useRouter()
+const { locale, locales } = useI18n()
 
 // Initialize accent color before hydration to prevent flash
 initAccentOnPrehydrate()
@@ -15,6 +17,21 @@ useHead({
   },
 })
 
+const localeMap = locales.value.reduce(
+  (acc, l) => {
+    acc[l.code!] = l.dir ?? 'ltr'
+    return acc
+  },
+  {} as Record<string, Directions>,
+)
+
+useHydratedHead({
+  htmlAttrs: {
+    lang: () => locale.value,
+    dir: () => localeMap[locale.value] ?? 'ltr',
+  },
+})
+
 // Global keyboard shortcut: "/" focuses search or navigates to search page
 function handleGlobalKeydown(e: KeyboardEvent) {
   const target = e.target as HTMLElement

app/composables/i18n.ts

@@ -0,0 +1,107 @@
+import type { UseTimeAgoOptions } from '@vueuse/core'
+
+const formatter = Intl.NumberFormat()
+
+export function formattedNumber(num: number, useFormatter: Intl.NumberFormat = formatter) {
+  return useFormatter.format(num)
+}
+
+export function useHumanReadableNumber() {
+  const { n, locale } = useI18n()
+
+  const fn = (num: number) => {
+    return n(
+      num,
+      num < 10000 ? 'smallCounting' : num < 1000000 ? 'kiloCounting' : 'millionCounting',
+      locale.value,
+    )
+  }
+
+  return {
+    formatHumanReadableNumber: (num: MaybeRef<number>) => fn(unref(num)),
+    formatNumber: (num: MaybeRef<number>) => n(unref(num), 'smallCounting', locale.value),
+    formatPercentage: (num: MaybeRef<number>) => n(unref(num), 'percentage', locale.value),
+    forSR: (num: MaybeRef<number>) => unref(num) > 10000,
+  }
+}
+
+export function useFormattedDateTime(
+  value: MaybeRefOrGetter<string | number | Date | undefined | null>,
+  options: Intl.DateTimeFormatOptions = { dateStyle: 'long', timeStyle: 'medium' },
+) {
+  const { locale } = useI18n()
+  const formatter = computed(() => Intl.DateTimeFormat(locale.value, options))
+  return computed(() => {
+    const v = toValue(value)
+    return v ? formatter.value.format(new Date(v)) : ''
+  })
+}
+
+export function useTimeAgoOptions(short = false): UseTimeAgoOptions<false> {
+  const { d, t, n: fnf, locale } = useI18n()
+  const prefix = short ? 'short_' : ''
+
+  const fn = (n: number, past: boolean, key: string) => {
+    return t(`time_ago_options.${prefix}${key}_${past ? 'past' : 'future'}`, n, {
+      named: {
+        v: fnf(n, 'smallCounting', locale.value),
+      },
+    })
+  }
+
+  return {
+    rounding: 'floor',
+    showSecond: !short,
+    updateInterval: short ? 60000 : 1000,
+    messages: {
+      justNow: t('time_ago_options.just_now'),
+      // just return the value
+      past: n => n,
+      // just return the value
+      future: n => n,
+      second: (n, p) => fn(n, p, 'second'),
+      minute: (n, p) => fn(n, p, 'minute'),
+      hour: (n, p) => fn(n, p, 'hour'),
+      day: (n, p) => fn(n, p, 'day'),
+      week: (n, p) => fn(n, p, 'week'),
+      month: (n, p) => fn(n, p, 'month'),
+      year: (n, p) => fn(n, p, 'year'),
+      invalid: '',
+    },
+    fullDateFormatter(date) {
+      return d(date, short ? 'short' : 'long')
+    },
+  }
+}
+
+export function useFileSizeFormatter() {
+  const { locale } = useI18n()
+
+  const formatters = computed(
+    () =>
+      [
+        Intl.NumberFormat(locale.value, {
+          style: 'unit',
+          unit: 'megabyte',
+          unitDisplay: 'narrow',
+          maximumFractionDigits: 0,
+        }),
+        Intl.NumberFormat(locale.value, {
+          style: 'unit',
+          unit: 'kilobyte',
+          unitDisplay: 'narrow',
+          maximumFractionDigits: 0,
+        }),
+      ] as const,
+  )
+
+  const megaByte = 1024 * 1024
+
+  function formatFileSize(size: number) {
+    return size >= megaByte
+      ? formatters.value[0].format(size / megaByte)
+      : formatters.value[1].format(size / 1024)
+  }
+
+  return { formatFileSize }
+}

app/composables/useSettings.ts

@@ -14,19 +14,27 @@ export interface AppSettings {
   includeTypesInInstall: boolean
   /** Accent color theme */
   accentColorId: AccentColorId | null
+  /** Language code (e.g., "en-US") */
+  language: string
 }
 
 const DEFAULT_SETTINGS: AppSettings = {
   relativeDates: false,
   includeTypesInInstall: true,
   accentColorId: null,
+  language: 'en-US',
 }
 
 const STORAGE_KEY = 'npmx-settings'
 
 // Shared settings instance (singleton per app)
 let settingsRef: RemovableRef<AppSettings> | null = null
 
+export function getDefaultLanguage(languages: string[]) {
+  if (import.meta.server) return 'en-US'
+  return matchLanguages(languages, navigator.languages) || 'en-US'
+}
+
 /**
  * Composable for managing application settings with localStorage persistence.
  * Settings are shared across all components that use this composable.

app/composables/vue.ts

@@ -0,0 +1,68 @@
+import type { SchemaAugmentations } from '@unhead/schema'
+import type { ActiveHeadEntry, UseHeadInput, UseHeadOptions } from '@unhead/vue'
+import type { ComponentInternalInstance } from 'vue'
+import { onActivated, onDeactivated, ref } from 'vue'
+
+export const isHydrated = ref(false)
+
+export function onHydrated(cb: () => unknown) {
+  watch(isHydrated, () => cb(), { immediate: isHydrated.value, once: true })
+}
+
+/**
+ * ### Whether the current component is running in the background
+ *
+ * for handling problems caused by the keepalive function
+ */
+export function useDeactivated() {
+  const deactivated = ref(false)
+  onActivated(() => (deactivated.value = false))
+  onDeactivated(() => (deactivated.value = true))
+
+  return deactivated
+}
+
+/**
+ * ### When the component is restored from the background
+ *
+ * for handling problems caused by the keepalive function
+ *
+ * @param hook
+ * @param target
+ */
+export function onReactivated(hook: () => void, target?: ComponentInternalInstance | null): void {
+  const initial = ref(true)
+  onActivated(() => {
+    if (initial.value) return
+    hook()
+  }, target)
+  onDeactivated(() => (initial.value = false))
+}
+
+export function useHydratedHead<T extends SchemaAugmentations>(
+  input: UseHeadInput<T>,
+  options?: UseHeadOptions,
+): ActiveHeadEntry<UseHeadInput<T>> | void {
+  if (input && typeof input === 'object' && !('value' in input)) {
+    const title = 'title' in input ? input.title : undefined
+    if (import.meta.server && title) {
+      input.meta = input.meta || []
+      if (Array.isArray(input.meta)) {
+        input.meta.push({
+          property: 'og:title',
+          content: (typeof input.title === 'function' ? input.title() : input.title) as string,
+        })
+      }
+    } else if (title) {
+      ;(input as any).title = () =>
+        isHydrated.value ? (typeof title === 'function' ? title() : title) : ''
+    }
+  }
+  return useHead(
+    (() => {
+      if (!isHydrated.value) return {}
+      return toValue(input)
+    }) as UseHeadInput<T>,
+    options,
+  )
+}

app/pages/settings.vue

@@ -142,9 +142,8 @@ useSeoMeta({
         <div class="px-2 py-1">
           <select
             id="language-select"
-            :value="locale"
+            v-model="settings.language"
             class="w-full bg-bg-muted border border-border rounded-md px-2 py-1.5 text-sm text-fg focus:outline-none focus:ring-2 focus:ring-fg/50 cursor-pointer"
-            @change="setLocale(($event.target as HTMLSelectElement).value as typeof locale)"
           >
             <option v-for="loc in availableLocales" :key="loc.code" :value="loc.code">
               {{ loc.name }}

app/plugins/hydration.client.ts

@@ -0,0 +1,5 @@
+export default defineNuxtPlugin(nuxtApp => {
+  nuxtApp.hooks.hookOnce('app:suspense:resolve', () => {
+    isHydrated.value = true
+  })
+})

app/plugins/setup-i18n.ts

@@ -0,0 +1,32 @@
+import type { Locale } from '#i18n'
+
+export default defineNuxtPlugin(async nuxt => {
+  const t = nuxt.vueApp.config.globalProperties.$t
+  const d = nuxt.vueApp.config.globalProperties.$d
+  const n = nuxt.vueApp.config.globalProperties.$n
+
+  nuxt.vueApp.config.globalProperties.$t = wrapI18n(t)
+  nuxt.vueApp.config.globalProperties.$d = wrapI18n(d)
+  nuxt.vueApp.config.globalProperties.$n = wrapI18n(n)
+
+  if (import.meta.client) {
+    const i18n = useNuxtApp().$i18n
+    const { setLocale, locales } = i18n
+    const { settings } = useSettings()
+    const lang = computed(() => settings.value.language as Locale)
+
+    const supportLanguages = unref(locales).map(locale => locale.code)
+    if (!supportLanguages.includes(lang.value))
+      settings.value.language = getDefaultLanguage(supportLanguages)
+
+    if (lang.value !== i18n.locale.value) await setLocale(settings.value.language as Locale)
+
+    watch(
+      [lang, isHydrated],
+      () => {
+        if (isHydrated.value && lang.value !== i18n.locale.value) setLocale(lang.value)
+      },
+      { immediate: true },
+    )
+  }
+})

app/utils/i18n.ts

@@ -0,0 +1,18 @@
+import { useI18n as useOriginalI18n } from 'vue-i18n'
+
+export function useI18n() {
+  const { t, d, n, ...rest } = useOriginalI18n()
+
+  return {
+    ...rest,
+    t: wrapI18n(t),
+    d: wrapI18n(d),
+    n: wrapI18n(n),
+  } satisfies ReturnType<typeof useOriginalI18n>
+}
+
+export function wrapI18n<T extends (...args: any[]) => any>(t: T): T {
+  return <T>((...args: any[]) => {
+    return import.meta.server ? t(...args) : isHydrated.value ? t(...args) : ''
+  })
+}

app/utils/language.ts

@@ -0,0 +1,35 @@
+export function matchLanguages(
+  languages: string[],
+  acceptLanguages: readonly string[],
+): string | null {
+  {
+    // const lang = acceptLanguages.map(userLang => languages.find(lang => lang.startsWith(userLang))).filter(v => !!v)[0]
+    // TODO: Support es-419, remove this code if we include spanish country variants
+    const lang = acceptLanguages
+      .map(userLang =>
+        languages.find(currentLang => {
+          if (currentLang === userLang) return currentLang
+
+          // Edge browser: case for ca-valencia
+          if (currentLang === 'ca-valencia' && userLang === 'ca-Es-VALENCIA') return currentLang
+
+          if (userLang.startsWith('es-') && userLang !== 'es-ES' && currentLang === 'es-419')
+            return currentLang
+
+          return currentLang.startsWith(userLang) ? currentLang : undefined
+        }),
+      )
+      .find(v => !!v)
+    if (lang) return lang
+  }
+
+  const lang = acceptLanguages
+    .map(userLang => {
+      userLang = userLang.split('-')[0]!
+      return languages.find(lang => lang.startsWith(userLang))
+    })
+    .find(v => !!v)
+  if (lang) return lang
+
+  return null
+}