File size: 5,547 Bytes
4e1096a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 | import { useState, useCallback, useEffect } from 'react';
import { useAuth } from '@/context/AuthContext';
import { ErrorCodes, getTranslator, getTranslators, TranslatorName } from '@/services/translators';
import { getFromCache, storeInCache, UseTranslatorOptions } from '@/services/translators';
import { polish, preprocess } from '@/services/translators';
import { eventDispatcher } from '@/utils/event';
import { getLocale } from '@/utils/misc';
import { useTranslation } from './useTranslation';
export function useTranslator({
provider = 'deepl',
sourceLang = 'AUTO',
targetLang = 'EN',
enablePolishing = true,
enablePreprocessing = true,
}: UseTranslatorOptions = {}) {
const _ = useTranslation();
const { token } = useAuth();
const [loading, setLoading] = useState(false);
const [selectedProvider, setSelectedProvider] = useState(provider);
const [translator, setTransltor] = useState(() => getTranslator(provider));
const [translators] = useState(() => getTranslators());
useEffect(() => {
setLoading(false);
}, [provider, sourceLang, targetLang]);
useEffect(() => {
const availableTranslators = getTranslators().filter(
(t) => (t.authRequired ? !!token : true) && !t.quotaExceeded,
);
const selectedTranslator =
availableTranslators.find((t) => t.name === provider) || availableTranslators[0]!;
const selectedProviderName = selectedTranslator.name as TranslatorName;
setTransltor(getTranslator(selectedProviderName));
setSelectedProvider(selectedProviderName);
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [provider]);
const translate = useCallback(
async (
input: string[],
options?: { source?: string; target?: string; useCache?: boolean },
): Promise<string[]> => {
const sourceLanguage = options?.source || sourceLang;
const targetLanguage = options?.target || targetLang || getLocale();
const useCache = options?.useCache ?? false;
const textsToTranslate = enablePreprocessing ? preprocess(input) : input;
if (textsToTranslate.length === 0 || textsToTranslate.every((t) => !t?.trim())) {
return textsToTranslate;
}
const textsNeedingTranslation: string[] = [];
const indicesNeedingTranslation: number[] = [];
await Promise.all(
textsToTranslate.map(async (text, index) => {
if (!text?.trim()) return;
const cachedTranslation = await getFromCache(
text,
sourceLanguage,
targetLanguage,
selectedProvider,
);
if (cachedTranslation) return;
textsNeedingTranslation.push(text);
indicesNeedingTranslation.push(index);
}),
);
if (textsNeedingTranslation.length === 0) {
const results = await Promise.all(
textsToTranslate.map((text) =>
getFromCache(text, sourceLanguage, targetLanguage, selectedProvider).then(
(cached) => cached || text,
),
),
);
return enablePolishing ? polish(results, targetLanguage) : results;
}
setLoading(true);
try {
const translator = translators.find((t) => t.name === selectedProvider);
if (!translator) {
throw new Error(`No translator found for provider: ${selectedProvider}`);
}
const translatedTexts = await translator.translate(
textsNeedingTranslation,
sourceLanguage,
targetLanguage,
token,
useCache,
);
await Promise.all(
textsNeedingTranslation.map(async (text, index) => {
return storeInCache(
text,
translatedTexts[index] || '',
sourceLanguage,
targetLanguage,
selectedProvider,
);
}),
);
const results = [...textsToTranslate];
indicesNeedingTranslation.forEach((originalIndex, translationIndex) => {
results[originalIndex] = translatedTexts[translationIndex] || '';
});
await Promise.all(
results.map(async (_, index) => {
if (!indicesNeedingTranslation.includes(index)) {
const originalText = textsToTranslate[index];
if (!originalText?.trim()) return;
const cachedTranslation = await getFromCache(
originalText,
sourceLanguage,
targetLanguage,
selectedProvider,
);
if (cachedTranslation) {
results[index] = cachedTranslation;
}
}
}),
);
setLoading(false);
return enablePolishing ? polish(results, targetLanguage) : results;
} catch (err) {
if (err instanceof Error && err.message.includes(ErrorCodes.DAILY_QUOTA_EXCEEDED)) {
eventDispatcher.dispatch('toast', {
timeout: 5000,
message: _(
'Daily translation quota reached. Upgrade your plan to continue using AI translations.',
),
type: 'error',
});
setSelectedProvider('azure');
}
setLoading(false);
throw err instanceof Error ? err : new Error(String(err));
}
},
// eslint-disable-next-line react-hooks/exhaustive-deps
[selectedProvider, sourceLang, targetLang, translator, token],
);
return {
translate,
translator,
translators,
loading,
};
}
|