Surface/lib/providers/translation.dart

56 lines
1.3 KiB
Dart

import 'dart:convert';
import 'package:crypto/crypto.dart';
import 'package:dio/dio.dart';
import 'package:surface/logger.dart';
const kTranslateApiBaseUrl = 'https://translate.solsynth.dev';
class SnTranslator {
final Dio client = Dio(
BaseOptions(
baseUrl: kTranslateApiBaseUrl,
connectTimeout: Duration(seconds: 3),
sendTimeout: Duration(seconds: 3),
receiveTimeout: Duration(seconds: 3),
),
);
final Map<String, String> _cache = {};
Future<String> translate(
String text, {
required String to,
String from = 'auto',
bool skipCache = false,
}) async {
if (text.isEmpty) return text;
final cacheKey = md5.convert(utf8.encode('$text$from$to')).toString();
if (!skipCache && _cache.containsKey(cacheKey)) {
return _cache[cacheKey]!;
}
logging.info('[Translator] Translate $text from $from to $to');
final resp = await client.post(
'/translate',
data: {
'q': text,
'source': from,
'target': to,
'format': 'text',
},
);
if (resp.statusCode == 200) {
final out = resp.data['translatedText'];
if (out.isNotEmpty) {
logging.info('[Translator] Translated $text from $from to $to');
_cache[cacheKey] = out;
return out;
}
}
throw Exception('translate failed: $resp');
}
}