feature: premium v1 migration

client/ui/controllers/api/apiPremV1MigrationController.h

@@ -0,0 +1,50 @@
+#ifndef APIPREMV1MIGRATIONCONTROLLER_H
+#define APIPREMV1MIGRATIONCONTROLLER_H
+
+#include <QObject>
+
+#include "ui/models/servers_model.h"
+
+class ApiPremV1MigrationController : public QObject
+{
+    Q_OBJECT
+public:
+    ApiPremV1MigrationController(const QSharedPointer<ServersModel> &serversModel, const std::shared_ptr<Settings> &settings,
+                                 QObject *parent = nullptr);
+
+    Q_PROPERTY(QJsonArray subscriptionsModel READ getSubscriptionModel NOTIFY subscriptionsModelChanged)
+
+public slots:
+    bool hasConfigsToMigration();
+    void getSubscriptionList(const QString &email);
+    QJsonArray getSubscriptionModel();
+    void sendMigrationCode(const int subscriptionIndex);
+    void migrate(const QString &migrationCode);
+
+    bool isPremV1MigrationReminderActive();
+    void disablePremV1MigrationReminder();
+
+signals:
+    void subscriptionsModelChanged();
+
+    void otpSuccessfullySent();
+
+    void importPremiumV2VpnKey(const QString &vpnKey);
+
+    void errorOccurred(ErrorCode errorCode);
+
+    void showMigrationDrawer();
+    void migrationFinished();
+
+    void noSubscriptionToMigrate();
+
+private:
+    QSharedPointer<ServersModel> m_serversModel;
+    std::shared_ptr<Settings> m_settings;
+
+    QJsonArray m_subscriptionsModel;
+    int m_subscriptionIndex;
+    QString m_email;
+};
+
+#endif // APIPREMV1MIGRATIONCONTROLLER_H