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138 lines
3.2 KiB
TypeScript
138 lines
3.2 KiB
TypeScript
import type { mastodon } from 'masto'
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export interface TranslationResponse {
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translatedText: string
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detectedLanguage: {
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confidence: number
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language: string
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}
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}
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// @see https://github.com/LibreTranslate/LibreTranslate/tree/main/libretranslate/locales
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export const supportedTranslationCodes = [
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'ar',
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'az',
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'cs',
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'da',
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'de',
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'el',
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'en',
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'eo',
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'es',
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'fa',
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'fi',
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'fr',
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'ga',
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'he',
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'hi',
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'hu',
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'id',
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'it',
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'ja',
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'ko',
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'nl',
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'pl',
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'pt',
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'ru',
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'sk',
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'sv',
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'tr',
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'uk',
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'vi',
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'zh',
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] as const
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export function getLanguageCode() {
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let code = 'en'
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const getCode = (code: string) => code.replace(/-.*$/, '')
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if (import.meta.client) {
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const { locale } = useI18n()
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code = getCode(locale.value ? locale.value : navigator.language)
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}
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return code
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}
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interface TranslationErr {
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data?: {
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error?: string
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}
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}
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export async function translateText(text: string, from: string | null | undefined, to: string) {
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const config = useRuntimeConfig()
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const status = ref({
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success: false,
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error: '',
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text: '',
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})
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const regex = /<a[^>]*>.*?<\/a>/g
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try {
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const response = await ($fetch as any)(config.public.translateApi, {
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method: 'POST',
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body: {
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q: text,
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source: from ?? 'auto',
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target: to,
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format: 'html',
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api_key: '',
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},
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}) as TranslationResponse
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status.value.success = true
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// replace the translated links with the original
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status.value.text = response.translatedText.replace(regex, (match) => {
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const tagLink = regex.exec(text)
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return tagLink ? tagLink[0] : match
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})
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}
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catch (err) {
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// TODO: improve type
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if ((err as TranslationErr).data?.error)
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status.value.error = (err as TranslationErr).data!.error!
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else
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status.value.error = 'Unknown Error, Please check your console in browser devtool.'
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console.error('Translate Post Error: ', err)
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}
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return status
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}
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const translations = new WeakMap<mastodon.v1.Status | mastodon.v1.StatusEdit, {
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visible: boolean
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text: string
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success: boolean
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error: string
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}>()
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export function useTranslation(status: mastodon.v1.Status | mastodon.v1.StatusEdit, to: string) {
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if (!translations.has(status))
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translations.set(status, reactive({ visible: false, text: '', success: false, error: '' }))
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const translation = translations.get(status)!
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const userSettings = useUserSettings()
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const shouldTranslate = 'language' in status && status.language && status.language !== to
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&& supportedTranslationCodes.includes(to as any)
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&& supportedTranslationCodes.includes(status.language as any)
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&& !userSettings.value.disabledTranslationLanguages.includes(status.language)
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const enabled = /*! !useRuntimeConfig().public.translateApi && */ shouldTranslate
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async function toggle() {
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if (!shouldTranslate)
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return
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if (!translation.text) {
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const translated = await translateText(status.content, status.language, to)
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translation.error = translated.value.error
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translation.text = translated.value.text
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translation.success = translated.value.success
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}
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translation.visible = !translation.visible
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}
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return {
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enabled,
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toggle,
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translation,
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}
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}
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