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refactor: remove server audio transcription and related fallback logic, retaining only on-device speech-to-text functionality

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This commit is contained in:
cogwheel0
2025-08-25 20:56:33 +05:30
parent fa9fa8dd1b
commit ac21ec6493
4 changed files with 56 additions and 355 deletions
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93
lib/core/services/api_service.dart
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@@ -3,7 +3,7 @@ import 'dart:convert';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:dio/dio.dart';
import 'package:http_parser/http_parser.dart';
// import 'package:http_parser/http_parser.dart';
// Removed legacy websocket/socket.io imports
import 'package:uuid/uuid.dart';
import '../models/server_config.dart';
@@ -1651,96 +1651,7 @@ class ApiService {
return [];
}
Future<String> transcribeAudio(
List<int> audioData, {
String? language,
}) async {
// Normalize language to primary ISO 639-1 (e.g., en-US -> en) per server accepted list
String? normalizedLang;
if (language != null && language.isNotEmpty) {
normalizedLang = language.split(RegExp('[-_]')).first.toLowerCase();
}
debugPrint(
'DEBUG: Transcribing audio data: bytes=${audioData.length}, language=${normalizedLang ?? 'null'}',
);
FormData buildForm(String? lang) {
final Map<String, dynamic> formMap = {
'file': MultipartFile.fromBytes(
audioData,
filename: 'audio.wav',
contentType: MediaType.parse('audio/wav'),
),
};
if (lang != null && lang.isNotEmpty) {
formMap['language'] = lang;
}
return FormData.fromMap(formMap);
}
var formData = buildForm(normalizedLang);
try {
final response = await _dio.post(
'/api/v1/audio/transcriptions',
data: formData,
options: Options(headers: {'Accept': 'application/json'}),
);
final data = response.data;
debugPrint(
'DEBUG: Transcription response status: ${response.statusCode}',
);
DebugLogger.log('Transcription response received successfully');
if (data is String) return data;
if (data is Map<String, dynamic>) {
final text = data['text'] ?? data['transcription'] ?? data['result'];
if (text is String) return text;
if (data['data'] is Map && (data['data']['text'] is String)) {
return data['data']['text'] as String;
}
}
return '';
} catch (e) {
debugPrint('DEBUG: Transcription API error: $e');
// If server complains about invalid language code, retry without language
try {
if (e is DioException) {
final data = e.response?.data;
final msg = data is Map<String, dynamic>
? data.toString()
: data?.toString() ?? '';
if (msg.contains("not a valid language code")) {
debugPrint('DEBUG: Retrying transcription without language');
final retryResponse = await _dio.post(
'/api/v1/audio/transcriptions',
data: buildForm(null),
options: Options(headers: {'Accept': 'application/json'}),
);
final rdata = retryResponse.data;
debugPrint(
'DEBUG: Transcription retry status: ${retryResponse.statusCode}',
);
DebugLogger.log(
'Transcription retry response received successfully',
);
if (rdata is String) return rdata;
if (rdata is Map<String, dynamic>) {
final text =
rdata['text'] ?? rdata['transcription'] ?? rdata['result'];
if (text is String) return text;
if (rdata['data'] is Map && (rdata['data']['text'] is String)) {
return rdata['data']['text'] as String;
}
}
return '';
}
}
} catch (e2) {
debugPrint('DEBUG: Transcription retry error: $e2');
}
rethrow;
}
}
// Server audio transcription removed; rely on on-device STT in UI layer
// Image Generation
Future<List<Map<String, dynamic>>> getImageModels() async {