magpie/models/currencies.h

//SPDX-FileCopyrightText: 2023 Yury Gubich <blue@macaw.me>
//SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <deque>
#include <list>
#include <map>

#include <QString>
#include <QColor>
#include <QAbstractListModel>
#include <qqmlregistration.h>

namespace Models {
struct Currency {
    using ID = uint32_t;

    ID id;
    QString code;
    QString title;
    unsigned int type;
    double value;
    QString description;
    QString icon;
};

class Currencies : public QAbstractListModel {
    Q_OBJECT
    QML_ELEMENT

public:
    Currencies (QObject* parent = nullptr);

    enum Roles {
        Id = Qt::UserRole + 1,
        Code,
        Title,
        Type,
        Value,
        Description,
        Icon
    };

    void clear ();
    void add (const Currency& currency);
    void add (const std::deque<Currency>& currencies);
    void remove (Currency::ID id);

    QString getCode(Currency::ID id);

    //Basic functionality:
    int rowCount (const QModelIndex& parent = QModelIndex()) const override;
    QHash<int, QByteArray> roleNames () const override;
    QVariant data (const QModelIndex& index, int role = Qt::DisplayRole) const override;

    static bool deserialize(const QVariantList& from, std::deque<Currency>& out);
    static const QHash<int, QByteArray> roles;

private:
    using Order = std::list<Currency>;
    using Index = std::deque<Order::iterator>;
    using Map = std::map<Currency::ID, Order::iterator>;

    Order order;
    Index index;
    Map map;
};

}