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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "backends/cloud/folderdownloadrequest.h"
#include "common/debug.h"
namespace Cloud {
FolderDownloadRequest::FolderDownloadRequest(Storage *storage, Storage::FileArrayCallback callback, Common::String remoteDirectoryPath, Common::String localDirectoryPath, bool recursive):
Request(nullptr), _storage(storage), _fileArrayCallback(callback),
_remoteDirectoryPath(remoteDirectoryPath), _localDirectoryPath(localDirectoryPath), _recursive(recursive),
_workingRequest(nullptr), _ignoreCallback(false) {
start();
}
FolderDownloadRequest::~FolderDownloadRequest() {
_ignoreCallback = true;
if (_workingRequest) _workingRequest->finish();
delete _fileArrayCallback;
}
void FolderDownloadRequest::start() {
//cleanup
_ignoreCallback = true;
if (_workingRequest) _workingRequest->finish();
_currentFile = StorageFile();
_files.clear();
_failedFiles.clear();
_ignoreCallback = false;
//list directory first
_workingRequest = _storage->listDirectory(
_remoteDirectoryPath,
new Common::Callback<FolderDownloadRequest, Storage::ListDirectoryResponse>(this, &FolderDownloadRequest::directoryListedCallback),
_recursive
);
}
void FolderDownloadRequest::directoryListedCallback(Storage::ListDirectoryResponse pair) {
if (_ignoreCallback) return;
ListDirectoryStatus status = pair.value;
if (status.failed || status.interrupted) {
finish();
return;
}
_files = pair.value.files;
downloadNextFile();
}
void FolderDownloadRequest::fileDownloadedCallback(Storage::BoolResponse pair) {
if (_ignoreCallback) return;
if (!pair.value) _failedFiles.push_back(_currentFile);
downloadNextFile();
}
void FolderDownloadRequest::downloadNextFile() {
do {
if (_files.empty()) {
finishFiles(_failedFiles);
return;
}
_currentFile = _files.back();
_files.pop_back();
} while (_currentFile.isDirectory()); //TODO: may be create these directories (in case those are empty)
Common::String remotePath = _currentFile.path();
Common::String localPath = remotePath;
if (_remoteDirectoryPath == "" || remotePath.hasPrefix(_remoteDirectoryPath)) {
localPath.erase(0, _remoteDirectoryPath.size());
if (_remoteDirectoryPath != "" && (_remoteDirectoryPath.lastChar() != '/' && _remoteDirectoryPath.lastChar() != '\\'))
localPath.erase(0, 1);
} else {
warning("Can't process the following paths:");
warning("remote directory: %s", _remoteDirectoryPath.c_str());
warning("remote file under that directory: %s", remotePath.c_str());
}
if (_localDirectoryPath != "") {
if (_localDirectoryPath.lastChar() == '/' || _localDirectoryPath.lastChar() == '\\')
localPath = _localDirectoryPath + localPath;
else
localPath = _localDirectoryPath + "/" + localPath;
}
debug("%s -> %s", remotePath.c_str(), localPath.c_str());
_workingRequest = _storage->download(
remotePath, localPath,
new Common::Callback<FolderDownloadRequest, Storage::BoolResponse>(this, &FolderDownloadRequest::fileDownloadedCallback)
);
}
void FolderDownloadRequest::finish() {
//TODO: somehow indicate that request was interrupted
Common::Array<StorageFile> files;
finishFiles(files);
}
void FolderDownloadRequest::finishFiles(Common::Array<StorageFile> &files) {
Request::finish();
if (_fileArrayCallback) (*_fileArrayCallback)(Storage::FileArrayResponse(this, files));
}
} // End of namespace Cloud
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