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#include "subsurfacewebservices.h"
#include "ui_subsurfacewebservices.h"
#include "../webservice.h"
#include <libxml/parser.h>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QDebug>
#include <qdesktopservices.h>
SubsurfaceWebServices* SubsurfaceWebServices::instance()
{
static SubsurfaceWebServices *self = new SubsurfaceWebServices();
return self;
}
SubsurfaceWebServices::SubsurfaceWebServices(QWidget* parent, Qt::WindowFlags f)
: ui( new Ui::SubsurfaceWebServices()){
ui->setupUi(this);
connect(ui->buttonBox, SIGNAL(clicked(QAbstractButton*)), this, SLOT(buttonClicked(QAbstractButton*)));
connect(ui->download, SIGNAL(clicked(bool)), this, SLOT(startDownload()));
ui->buttonBox->button(QDialogButtonBox::Apply)->setEnabled(false);
}
void SubsurfaceWebServices::buttonClicked(QAbstractButton* button)
{
ui->buttonBox->button(QDialogButtonBox::Apply)->setEnabled(false);
switch(ui->buttonBox->buttonRole(button)){
case QDialogButtonBox::ApplyRole:
qDebug() << "Apply Clicked";
break;
case QDialogButtonBox::RejectRole:
manager->deleteLater();
reply->deleteLater();
ui->progressBar->setMaximum(1);
break;
case QDialogButtonBox::HelpRole:
QDesktopServices::openUrl(QUrl("http://api.hohndel.org"));
break;
default:
break;
}
}
void SubsurfaceWebServices::startDownload()
{
QUrl url("http://api.hohndel.org/api/dive/get/");
url.setQueryItems( QList<QPair<QString,QString> >() << qMakePair(QString("login"), ui->userID->text()));
manager = new QNetworkAccessManager(this);
QNetworkRequest request;
request.setUrl(url);
request.setRawHeader("Accept", "text/xml");
reply = manager->get(request);
ui->progressBar->setRange(0,0); // this makes the progressbar do an 'infinite spin'
ui->download->setEnabled(false);
ui->buttonBox->button(QDialogButtonBox::Apply)->setEnabled(false);
connect(reply, SIGNAL(finished()), this, SLOT(downloadFinished()));
connect(reply, SIGNAL(error(QNetworkReply::NetworkError)),
this, SLOT(downloadError(QNetworkReply::NetworkError)));
}
void SubsurfaceWebServices::downloadFinished()
{
ui->progressBar->setRange(0,1);
downloadedData = reply->readAll();
ui->download->setEnabled(true);
ui->status->setText(tr("Download Finished"));
uint resultCode = download_dialog_parse_response(downloadedData);
setStatusText(resultCode);
if (resultCode == DD_STATUS_OK){
ui->buttonBox->button(QDialogButtonBox::Apply)->setEnabled(true);
}
manager->deleteLater();
reply->deleteLater();
}
void SubsurfaceWebServices::downloadError(QNetworkReply::NetworkError error)
{
ui->download->setEnabled(true);
ui->progressBar->setRange(0,1);
ui->status->setText(QString::number((int)QNetworkRequest::HttpStatusCodeAttribute));
manager->deleteLater();
reply->deleteLater();
}
void SubsurfaceWebServices::setStatusText(int status)
{
QString text;
switch (status) {
case DD_STATUS_ERROR_CONNECT: text = tr("Connection Error: "); break;
case DD_STATUS_ERROR_ID: text = tr("Invalid user identifier!"); break;
case DD_STATUS_ERROR_PARSE: text = tr("Cannot parse response!"); break;
case DD_STATUS_OK: text = tr("Download Success!"); break;
}
ui->status->setText(text);
}
void SubsurfaceWebServices::runDialog()
{
show();
}
/* requires that there is a <download> or <error> tag under the <root> tag */
void SubsurfaceWebServices::download_dialog_traverse_xml(xmlNodePtr node, unsigned int *download_status)
{
xmlNodePtr cur_node;
for (cur_node = node; cur_node; cur_node = cur_node->next) {
if ((!strcmp((const char *)cur_node->name, (const char *)"download")) &&
(!strcmp((const char *)xmlNodeGetContent(cur_node), (const char *)"ok"))) {
*download_status = DD_STATUS_OK;
return;
} else if (!strcmp((const char *)cur_node->name, (const char *)"error")) {
*download_status = DD_STATUS_ERROR_ID;
return;
}
}
}
unsigned int SubsurfaceWebServices::download_dialog_parse_response(const QByteArray& xml)
{
xmlNodePtr root;
xmlDocPtr doc = xmlParseMemory(xml.data(), xml.length());
unsigned int status = DD_STATUS_ERROR_PARSE;
if (!doc)
return DD_STATUS_ERROR_PARSE;
root = xmlDocGetRootElement(doc);
if (!root) {
status = DD_STATUS_ERROR_PARSE;
goto end;
}
if (root->children)
download_dialog_traverse_xml(root->children, &status);
end:
xmlFreeDoc(doc);
return status;
}
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