// Copyright (c) 2020, The Monero Project
//
// All rights reserved.
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// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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#pragma once

#include <QReadWriteLock>

#include "network.h"

class Downloader : public QObject
{
    Q_OBJECT
    Q_PROPERTY(bool active READ active NOTIFY activeChanged);
    Q_PROPERTY(quint64 loaded READ loaded NOTIFY loadedChanged);
    Q_PROPERTY(quint64 total READ total NOTIFY totalChanged);

public:
    Downloader(QObject *parent = nullptr);
    ~Downloader();

    Q_INVOKABLE void cancel();
    Q_INVOKABLE bool get(const QString &url, const QString &hash, const QJSValue &callback);
    Q_INVOKABLE bool saveToFile(const QString &path) const;

signals:
    void activeChanged() const;
    void loadedChanged() const;
    void totalChanged() const;

private:
    bool active() const;
    quint64 loaded() const;
    quint64 total() const;

private:
    bool m_active;
    std::string m_contents;
    std::shared_ptr<HttpClient> m_httpClient;
    mutable QReadWriteLock m_mutex;
    Network m_network;
    mutable FutureScheduler m_scheduler;
};