chore: add doInternetUpRequest()

snigdhaosassistant.cpp

@@ -6,15 +6,64 @@
 
 #include "snigdhaosassistant.h"
 #include "./ui_snigdhaosassistant.h"
+#include <QCheckBox>
+#include <QDebug>
+#include <QFileInfo>
+#include <QProcess>
+#include <QScrollArea>
+#include <QTemporaryFile>
+#include <QTimer>
+#include <QtNetwork/QNetworkReply>
+#include <unistd.h>
 
-SnigdhaOSAssistant::SnigdhaOSAssistant(QWidget *parent)
+const char* INTERNET_CHECK_URL = "https://snigdhaos.org";
+
+SnigdhaOSAssistant::SnigdhaOSAssistant(QWidget *parent, QString state)
     : QMainWindow(parent)
     , ui(new Ui::SnigdhaOSAssistant)
 {
+    this->setWindowIcon(QIcon("/usr/share/pixmaps/snigdhaos-assistant.svg"));
     ui->setupUi(this);
+    this->setWindowFlags(this->windowFlags() & ~Qt::WindowCloseButtonHint);
+    executable_modify_date = QFileInfo(QCoreApplication::applicationFilePath()).lastModified();
+    updateState(state);
 }
 
 SnigdhaOSAssistant::~SnigdhaOSAssistant()
 {
     delete ui;
 }
+
+void SnigdhaOSAssistant::doInternetUpRequest(){
+    QNetworkAccessManager* network_manager = new QNetworkAccessManager();
+    auto network_reply = network_manager->head(QNetworkRequest(QString(INTERNET_CHECK_URL)));
+
+    QTimer* timer = new QTimer(this);
+    timer->setSingleShot(true);
+    timer->start(5000);
+
+    // Did we time out? Try again!
+    connect(timer, &QTimer::timeout, this, [this, timer, network_reply, network_manager]() {
+        timer->deleteLater();
+        network_reply->abort();
+        network_reply->deleteLater();
+        network_manager->deleteLater();
+        doInternetUpRequest();
+    });
+
+    // Request is done!
+    connect(network_reply, &QNetworkReply::finished, this, [this, timer, network_reply, network_manager]() {
+        timer->stop();
+        timer->deleteLater();
+        network_reply->deleteLater();
+        network_manager->deleteLater();
+        if (network_reply->error() == network_reply->NoError) {
+            // Wooo!
+            updateState(State::UPDATE);
+        }
+        // Boo!
+        else
+            doInternetUpRequest();
+    });
+
+}