/****************************************************************************
**
** Copyright (C) 2019 Luxoft Sweden AB
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Neptune 3 UI.
**
** $QT_BEGIN_LICENSE:GPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite licenses may use
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
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****************************************************************************/
#ifndef REMOTESETTINGS_CLIENT_H
#define REMOTESETTINGS_CLIENT_H

#include <QObject>
#include <QSettings>
#include <QTimer>
#include <QLoggingCategory>
#include <QUrl>
#include <QTemporaryDir>

#include "connectionmonitoring.h"

Q_DECLARE_LOGGING_CATEGORY(QSRClientApp)

class RemoteSettings_Client : public QObject
{
    Q_OBJECT
    Q_PROPERTY(QUrl serverUrl READ serverUrl NOTIFY serverUrlChanged)
    Q_PROPERTY(QString status READ status NOTIFY statusChanged)
    Q_PROPERTY(QStringList lastUrls READ lastUrls NOTIFY lastUrlsChanged)
    Q_PROPERTY(bool connected READ connected NOTIFY connectedChanged)

    static const QString settingsLastUrlsPrefix;
    static const QString settingsLastUrlsItem;
    static const QString settingsRemoteSettingsPortItem;
    static const QString settingsDriveDataPortItem;
    static const int numOfUrlsStored;
    static const int timeoutToleranceMS;
    static const int reconnectionIntervalMS;

public:
    static const QString defaultUrl;
    static const int defaultRemoteSettingsPort;
    static const int defaultDriveDataPort;

    explicit RemoteSettings_Client(QObject *parent = nullptr);
    ~RemoteSettings_Client();

    QUrl serverUrl() const;
    QString status() const;
    QStringList lastUrls() const;
    bool connected() const;

signals:
    void serverUrlChanged(const QUrl &url);
    void statusChanged(const QString &status);
    void lastUrlsChanged(const QStringList &lastUrls);
    void connectedChanged(bool connected);

public slots:
    void connectToServer(const QString &url);

protected slots:
    void updateConnectionStatus();
    void onCMCounterChanged();
    void onCMTimeout();
    void onReconnectionTimeout();

private:
    void setStatus(const QString &status);
    void readSettings();
    void writeSettings();
    void updateLastUrls(const QString &url);

    int m_remoteSettingsPort;
    int m_driveDataPort;
    QUrl m_serverUrl;
    QStringList m_lastUrls;
    bool m_connected;
    bool m_timedOut;
    QString m_status;
    QSettings m_settings;

    ConnectionMonitoring m_connectionMonitoring;

    QTimer m_connectionMonitoringTimer;
    QTimer m_reconnectionTimer;
    QTemporaryDir m_tmpDir;
    QString m_configPath;
};

#endif // CLIENT_H