OpenContacts/lib/clients/audio_cache_client.dart

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import 'dart:io';
import 'package:ffmpeg_kit_flutter_audio/ffmpeg_kit.dart';
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import 'package:http/http.dart' as http;
import 'package:path/path.dart';
import 'package:path_provider/path_provider.dart';
import 'package:recon/auxiliary.dart';
import 'package:recon/clients/api_client.dart';
import 'package:recon/models/message.dart';
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class AudioCacheClient {
final Future<Directory> _directoryFuture = getTemporaryDirectory();
final bool _isDarwin = Platform.isMacOS || Platform.isIOS;
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Future<File> cachedNetworkAudioFile(AudioClipContent clip) async {
final directory = await _directoryFuture;
final fileName = basenameWithoutExtension(clip.assetUri);
final file = File("${directory.path}/$fileName.ogg");
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if (!await file.exists()) {
await file.create(recursive: true);
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final response = await http.get(Uri.parse(Aux.resdbToHttp(clip.assetUri)));
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ApiClient.checkResponseCode(response);
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await file.writeAsBytes(response.bodyBytes);
}
if (_isDarwin) {
final wavFile = File("${directory.path}/$fileName.wav");
final wavFileExists = await wavFile.exists();
if (wavFileExists && await wavFile.length() == 0) {
await wavFile.delete();
}
if (!wavFileExists) {
await wavFile.create(recursive: true);
await FFmpegKit.executeAsync("-y -acodec libvorbis -i ${file.path} -acodec pcm_s16le ${wavFile.path}");
}
return wavFile;
}
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return file;
}
}