//
//  AssetUpload.cpp
//  libraries/networking/src
//
//  Created by Stephen Birarda on 2015-08-26.
//  Copyright 2015 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

#include "AssetUpload.h"

#include <QtCore/QFileInfo>
#include <QtCore/QThread>

#include "AssetClient.h"

AssetUpload::AssetUpload(QObject* object, const QString& filename) :
    _filename(filename)
{
    
}

void AssetUpload::start() {
    if (QThread::currentThread() != thread()) {
        QMetaObject::invokeMethod(this, "start", Qt::AutoConnection);
        return;
    }
    
    // try to open the file at the given filename
    QFile file { _filename };
    
    if (file.open(QIODevice::ReadOnly)) {
        
        // file opened, read the data and grab the extension
        _extension = QFileInfo(_filename).suffix();
        
        auto data = file.readAll();
        
        // ask the AssetClient to upload the asset and emit the proper signals from the passed callback
        auto assetClient = DependencyManager::get<AssetClient>();
        
        assetClient->uploadAsset(data, _extension, [this](bool success, const QString& hash){
            if (success) {
                // successful upload - emit finished with a point to ourselves and the resulting hash
                _result = Success;
                
                emit finished(this, hash);
            } else {
                // error during upload - emit finished with an empty hash
                // callers can get the error from this object
                
                // TODO: get the actual error from the callback
                _result = PermissionDenied;
            
                emit finished(this, hash);
            }
        });
    } else {
        // we couldn't open the file - set the error result
        _result = ErrorLoadingFile;
        
        // emit that we are done
        emit finished(this, QString());
    }
}