sinProject-Inc/talk

import { DEEPL_AUTH_KEY } from '$env/static/private'
import { logger } from '$lib/app/logger'
import type { SourceLanguageCode, TargetLanguageCode } from 'deepl-node'
import * as deepl from 'deepl-node'
import { TranslationText } from './translation_text'

export class DeeplTranslator {
    public constructor(
        private readonly _translation_text: TranslationText,
        private readonly _source_language_code: SourceLanguageCode | null = null
    ) {}

    public async translate(target_language_code: TargetLanguageCode): Promise<TranslationText> {
        const translator = new deepl.Translator(DEEPL_AUTH_KEY)
        const result = await translator.translateText(
            this._translation_text.text,
            this._source_language_code,
            target_language_code,
            { splitSentences: 'off' }
        )
        const translated_text = new TranslationText(result.text)

        logger.info(`[DeepL] Translated from ${this._source_language_code} to ${target_language_code}`)

        return translated_text
    }
}