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make upload/download work sequentialy so animation stays cool

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This commit is contained in:
RafayAhmad7548 2025-08-14 07:34:45 +05:00
parent 08bbeb2619
commit 1ccadcf200
1 changed files with 64 additions and 51 deletions
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115
lib/sftp_worker.dart
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@ -109,6 +109,66 @@ class SftpWorker {
static void _sftpCmdHandler(SendPort sendPort, ReceivePort receivePort, SftpClient sftpClient) {
final StreamController<(int, DownloadFile)> downloadController = StreamController();
downloadController.stream.asyncMap((cmd) async {
final (int id, DownloadFile downloadCmd) = cmd;
try {
final localFile = File('${downloadCmd.downloadPath}/${downloadCmd.file.filename}');
if (await localFile.exists()) {
sendPort.send((id, RemoteError('File Already Exists', '')));
return;
}
final localFileWriter = await localFile.open(mode: FileMode.write);
final remoteFile = await sftpClient.open('${downloadCmd.path}${downloadCmd.file.filename}');
final fileSize = downloadCmd.file.attr.size!;
bool timeout = true;
await for (final bytes in remoteFile.read(
onProgress: (progress) {
if (timeout) {
timeout = false;
sendPort.send((id, progress/fileSize));
Future.delayed(Duration(seconds: 2), () => timeout = true);
}
}
)) {
await localFileWriter.writeFrom(bytes);
}
}
on SftpStatusError catch (e) {
sendPort.send((id, RemoteError(e.message, '')));
}
sendPort.send((id, 1.0));
}).listen((_) {});
final StreamController<(int, UploadFile)> uploadController = StreamController();
uploadController.stream.asyncMap((cmd) async {
final (int id, UploadFile uploadCmd) = cmd;
try {
final file = File(uploadCmd.filePath);
final fileSize = await file.length();
final remoteFile = await sftpClient.open(
'${uploadCmd.path}${basename(uploadCmd.filePath)}',
mode: SftpFileOpenMode.create | SftpFileOpenMode.write | SftpFileOpenMode.exclusive
);
bool timeout = true;
await remoteFile.write(
file.openRead().cast(),
onProgress: (progress) {
if (timeout) {
timeout = false;
sendPort.send((id, progress/fileSize));
Future.delayed(Duration(seconds: 2), () => timeout = true);
}
}
);
}
on SftpStatusError catch (e) {
sendPort.send((id, RemoteError(e.message, '')));
}
sendPort.send((id, 1.0));
}).listen((_) {});
receivePort.listen((message) async {
final (int id, SftpCommand command) = message;
switch (command) {
@ -120,30 +180,8 @@ class SftpWorker {
on SftpStatusError catch (e) {
sendPort.send((id, RemoteError(e.message, '')));
}
case UploadFile(:final path, :final filePath):
try {
final file = File(filePath);
final fileSize = await file.length();
final remoteFile = await sftpClient.open(
'$path${basename(filePath)}',
mode: SftpFileOpenMode.create | SftpFileOpenMode.write | SftpFileOpenMode.exclusive
);
bool timeout = true;
await remoteFile.write(
file.openRead().cast(),
onProgress: (progress) {
if (timeout) {
timeout = false;
sendPort.send((id, progress/fileSize));
Future.delayed(Duration(seconds: 2), () => timeout = true);
}
}
);
}
on SftpStatusError catch (e) {
sendPort.send((id, RemoteError(e.message, '')));
}
sendPort.send((id, 1.0));
case UploadFile():
uploadController.add((id, command));
case MkDir(:final path):
try {
await sftpClient.mkdir(path);
@ -187,33 +225,8 @@ class SftpWorker {
on SftpStatusError catch (e) {
sendPort.send((id, RemoteError(e.message, '')));
}
case DownloadFile(:final file, :final path, :final downloadPath):
try {
final localFile = File('$downloadPath/${file.filename}');
if (await localFile.exists()) {
sendPort.send((id, RemoteError('File Already Exists', '')));
break;
}
final localFileWriter = await localFile.open(mode: FileMode.write);
final remoteFile = await sftpClient.open('$path${file.filename}');
final fileSize = file.attr.size!;
bool timeout = true;
await for (final bytes in remoteFile.read(
onProgress: (progress) {
if (timeout) {
timeout = false;
sendPort.send((id, progress/fileSize));
Future.delayed(Duration(seconds: 2), () => timeout = true);
}
}
)) {
await localFileWriter.writeFrom(bytes);
}
}
on SftpStatusError catch (e) {
sendPort.send((id, RemoteError(e.message, '')));
}
sendPort.send((id, 1.0));
case DownloadFile():
downloadController.add((id, command));
}
});
}