// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2024 A-La-Karte Contributors

#pragma once

#include <QAbstractListModel>
#include <QQmlEngine>
#include <QSortFilterProxyModel>

#include "game.h"

class GameModel : public QAbstractListModel
{
    Q_OBJECT
    QML_ELEMENT

    Q_PROPERTY(int count READ count NOTIFY countChanged)
    Q_PROPERTY(QString filterText READ filterText WRITE setFilterText NOTIFY filterTextChanged)
    Q_PROPERTY(QString filterPlatform READ filterPlatform WRITE setFilterPlatform NOTIFY filterPlatformChanged)
    Q_PROPERTY(bool showHidden READ showHidden WRITE setShowHidden NOTIFY showHiddenChanged)
    Q_PROPERTY(bool favoritesOnly READ favoritesOnly WRITE setFavoritesOnly NOTIFY favoritesOnlyChanged)
    Q_PROPERTY(SortMode sortMode READ sortMode WRITE setSortMode NOTIFY sortModeChanged)

public:
    enum Roles {
        IdRole = Qt::UserRole + 1,
        NameRole,
        DescriptionRole,
        DeveloperRole,
        PublisherRole,
        CoverUrlRole,
        IconUrlRole,
        LaunchCommandRole,
        PlatformRole,
        PlatformIdRole,
        LastPlayedRole,
        PlayTimeRole,
        FavoriteRole,
        HiddenRole,
        InstalledRole,
        RunningRole,
        GameObjectRole
    };
    Q_ENUM(Roles)

    enum SortMode {
        SortByName,
        SortByLastPlayed,
        SortByPlayTime,
        SortByPlatform,
        SortByRecent
    };
    Q_ENUM(SortMode)

    explicit GameModel(QObject *parent = nullptr);

    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
    Qt::ItemFlags flags(const QModelIndex &index) const override;
    QHash<int, QByteArray> roleNames() const override;

    int count() const;

    QString filterText() const;
    void setFilterText(const QString &text);

    QString filterPlatform() const;
    void setFilterPlatform(const QString &platform);

    bool showHidden() const;
    void setShowHidden(bool show);

    bool favoritesOnly() const;
    void setFavoritesOnly(bool favorites);

    SortMode sortMode() const;
    void setSortMode(SortMode mode);

    Q_INVOKABLE void addGame(Game *game);
    Q_INVOKABLE void removeGame(const QString &id);
    Q_INVOKABLE Game *gameAt(int index) const;
    Q_INVOKABLE Game *gameById(const QString &id) const;
    Q_INVOKABLE void clear();
    Q_INVOKABLE QStringList platforms() const;

Q_SIGNALS:
    void countChanged();
    void filterTextChanged();
    void filterPlatformChanged();
    void showHiddenChanged();
    void favoritesOnlyChanged();
    void sortModeChanged();

private:
    QList<Game *> m_games;
    QList<Game *> m_filteredGames;

    QString m_filterText;
    QString m_filterPlatform;
    bool m_showHidden = false;
    bool m_favoritesOnly = false;
    SortMode m_sortMode = SortByName;

    void applyFilter();
    void applySort();
    bool matchesFilter(Game *game) const;
};