/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef WIREGUARDUTILSLINUX_H
#define WIREGUARDUTILSLINUX_H

#include <QObject>
#include <QProcess>


#include "daemon/wireguardutils.h"
#include "linuxroutemonitor.h"
#include "linuxfirewall.h"


class WireguardUtilsLinux final : public WireguardUtils {
    Q_OBJECT

public:
    WireguardUtilsLinux(QObject* parent);
    ~WireguardUtilsLinux();

    bool interfaceExists() override {
        return m_tunnel.state() == QProcess::Running;
    }
    QString interfaceName() override { return m_ifname; }
    bool addInterface(const InterfaceConfig& config) override;
    bool deleteInterface() override;

    bool updatePeer(const InterfaceConfig& config) override;
    bool deletePeer(const InterfaceConfig& config) override;
    QList<PeerStatus> getPeerStatus() override;

    bool updateRoutePrefix(const IPAddress& prefix) override;
    bool deleteRoutePrefix(const IPAddress& prefix) override;

    bool addExclusionRoute(const IPAddress& prefix) override;
    bool deleteExclusionRoute(const IPAddress& prefix) override;

    bool excludeLocalNetworks(const QList<IPAddress>& lanAddressRanges) override;

    void applyFirewallRules(FirewallParams& params);
signals:
    void backendFailure();

private slots:
    void tunnelStdoutReady();
    void tunnelErrorOccurred(QProcess::ProcessError error);

private:
    QString uapiCommand(const QString& command);
    static int uapiErrno(const QString& command);
    QString waitForTunnelName(const QString& filename);

    QString m_ifname;
    QProcess m_tunnel;
    LinuxRouteMonitor* m_rtmonitor = nullptr;
};

#endif  // WIREGUARDUTILSLINUX_H