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/**
* Hooks for date-fns localized formatters.
*
* Our app supports some languages that are not included in date-fns by
* default, in which case it will fall back to English.
*
* {@link https://github.com/date-fns/date-fns/blob/main/docs/i18n.md}
*/
import React from 'react'
import {formatDistance, Locale} from 'date-fns'
import {
ca,
de,
enGB,
es,
fi,
fr,
hi,
hu,
id,
it,
ja,
ko,
ptBR,
ru,
tr,
uk,
zhCN,
zhHK,
zhTW,
} from 'date-fns/locale'
import {AppLanguage} from '#/locale/languages'
import {useLanguagePrefs} from '#/state/preferences'
/**
* {@link AppLanguage}
*/
const locales: Record<AppLanguage, Locale | undefined> = {
en: undefined,
ca,
de,
['en-GB']: enGB,
es,
fi,
fr,
ga: undefined,
hi,
hu,
id,
it,
ja,
ko,
['pt-BR']: ptBR,
ru,
tr,
uk,
['zh-CN']: zhCN,
['zh-HK']: zhHK,
['zh-TW']: zhTW,
}
/**
* Returns a localized `formatDistance` function.
* {@link formatDistance}
*/
export function useFormatDistance() {
const {appLanguage} = useLanguagePrefs()
return React.useCallback<typeof formatDistance>(
(date, baseDate, options) => {
const locale = locales[appLanguage as AppLanguage]
return formatDistance(date, baseDate, {...options, locale: locale})
},
[appLanguage],
)
}
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