/*
 * This file is part of the Flowee project
 * Copyright (C) 2011-2015 The Bitcoin Core developers
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef FLOWEE_QT_OPTIONSMODEL_H
#define FLOWEE_QT_OPTIONSMODEL_H

#include "amount.h"

#include <QAbstractListModel>

QT_BEGIN_NAMESPACE
class QNetworkProxy;
QT_END_NAMESPACE

/** Interface from Qt to configuration data structure for Bitcoin client.
   To Qt, the options are presented as a list with the different options
   laid out vertically.
   This can be changed to a tree once the settings become sufficiently
   complex.
 */
class OptionsModel : public QAbstractListModel
{
    Q_OBJECT

public:
    explicit OptionsModel(QObject *parent = 0, bool resetSettings = false);

    enum OptionID {
        StartAtStartup,         // bool
        MinimizeToTray,         // bool
        MapPortUPnP,            // bool
        MinimizeOnClose,        // bool
        ProxyUse,               // bool
        ProxyIP,                // QString
        ProxyPort,              // int
        ProxyUseTor,            // bool
        ProxyIPTor,             // QString
        ProxyPortTor,           // int
        DisplayUnit,            // BitcoinUnits::Unit
        ThirdPartyTxUrls,       // QString
        Language,               // QString
        CoinControlFeatures,    // bool
        SpendZeroConfChange,    // bool
        Listen,                 // bool
        BlockSizeAcceptLimit,   // double
        OptionIDRowCount,
    };

    void Init(bool resetSettings = false);
    void Reset();

    int rowCount(const QModelIndex & parent = QModelIndex()) const;
    QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const;
    bool setData(const QModelIndex & index, const QVariant & value, int role = Qt::EditRole);
    /** Updates current unit in memory, settings and emits displayUnitChanged(newUnit) signal */
    void setDisplayUnit(const QVariant &value);

    /* Explicit getters */
    bool getMinimizeToTray() { return fMinimizeToTray; }
    bool getMinimizeOnClose() { return fMinimizeOnClose; }
    int getDisplayUnit() { return nDisplayUnit; }
    QString getThirdPartyTxUrls() { return strThirdPartyTxUrls; }
    bool getProxySettings(QNetworkProxy& proxy) const;
    bool getCoinControlFeatures() { return fCoinControlFeatures; }
    const QString& getOverriddenByCommandLine() { return strOverriddenByCommandLine; }

    /* Restart flag helper */
    void setRestartRequired(bool fRequired);
    bool isRestartRequired();

private:
    /* Qt-only settings */
    bool fMinimizeToTray;
    bool fMinimizeOnClose;
    QString language;
    int nDisplayUnit;
    QString strThirdPartyTxUrls;
    bool fCoinControlFeatures;
    /* settings that were overriden by command-line */
    QString strOverriddenByCommandLine;

    /// Add option to list of GUI options overridden through command line/config file
    void addOverriddenOption(const std::string &option);

Q_SIGNALS:
    void displayUnitChanged(int unit);
    void coinControlFeaturesChanged(bool);
};

#endif