1 | const Translate = require('@google-cloud/translate');
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2 | const AsksuiteUtil = require('./../asksuite.util')();
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3 | const languagesMap = new Map();
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4 |
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5 | class Translator {
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6 | constructor(INFOCHAT_DATA_SERVER, GOOGLE_TRANSLATE_KEY) {
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7 | this.INFOCHAT_DATA_SERVER = INFOCHAT_DATA_SERVER;
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8 | this.GOOGLE_TRANSLATE_KEY = GOOGLE_TRANSLATE_KEY;
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9 | }
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10 |
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11 | static get DEFAULT_LANGUAGE() {
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12 | return 'pt-br';
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13 | }
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14 |
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15 | googleTranslateIfNeeded(text, language, languages) {
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16 | const GOOGLE_TRANSLATE_KEY = this.GOOGLE_TRANSLATE_KEY;
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17 |
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18 | return new Promise(function(resolve, reject) {
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19 | try {
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20 | const definedLanguage = AsksuiteUtil.resolveLanguageGoogle(
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21 | language,
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22 | languages,
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23 | 'formatGoogle',
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24 | );
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25 |
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26 | if (definedLanguage === Translator.DEFAULT_LANGUAGE) {
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27 | resolve({
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28 | translated: false,
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29 | translation: text,
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30 | });
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31 | } else {
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32 | const translate = new Translate({
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33 | key: GOOGLE_TRANSLATE_KEY,
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34 | });
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35 |
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36 | translate
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37 | .translate(text, {
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38 | from: definedLanguage,
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39 | to: Translator.DEFAULT_LANGUAGE,
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40 | })
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41 | .then(results => {
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42 | const translation = results[0];
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43 |
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44 | console.log(`Text: ${text}`);
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45 | console.log(
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46 | `Translation ${definedLanguage} -> ${Translator.DEFAULT_LANGUAGE}: ${translation}`,
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47 | );
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48 |
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49 | resolve({
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50 | translated: true,
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51 | translation,
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52 | });
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53 | })
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54 | .catch(err => {
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55 | console.error('ERROR:', err);
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56 | reject(err);
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57 | });
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58 | }
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59 | } catch (e) {
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60 | reject(e);
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61 | }
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62 | });
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63 | }
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64 |
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65 | static async getLanguageByCode(googleTranslateKey, languageCode, outputLanguageCode) {
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66 | if (!languagesMap.has(outputLanguageCode)) {
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67 | const translate = new Translate({
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68 | key: googleTranslateKey,
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69 | });
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70 |
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71 | const [languages] = await translate.getLanguages(outputLanguageCode);
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72 | languagesMap.set(outputLanguageCode, languages);
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73 | }
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74 |
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75 | return languagesMap.get(outputLanguageCode).find(lang => lang.code === languageCode);
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76 | }
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77 |
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78 | static detectLanguage(googleTranslateKey, text) {
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79 | const translate = new Translate({
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80 | key: googleTranslateKey,
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81 | });
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82 |
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83 | return translate.detect(text);
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84 | }
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85 |
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86 | static defineLanguage(language) {
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87 | try {
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88 | language = language.toLowerCase();
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89 |
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90 | if (language.indexOf('en') >= 0) {
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91 | language = 'en';
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92 | } else if (language.indexOf('es') >= 0) {
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93 | language = 'es';
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94 | } else {
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95 | throw Translator.DEFAULT_LANGUAGE;
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96 | }
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97 | } catch (defaultLang) {
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98 | language = defaultLang;
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99 | }
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100 |
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101 | return language;
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102 | }
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103 | }
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104 |
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105 | module.exports = Translator;
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