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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <QFileSystemWatcher>
#include <QStandardItemModel>
#include <QStringList>
#include <QVector>
#include <memory>

#include "common/common_types.h"
#include "frontend_common/play_time_manager.h"
#include "qt_common/config/uisettings.h"
#include "yuzu/compatibility_list.h"

namespace Core {
class System;
}

class GameListDir;
class GameListWorker;
class QStandardItem;

namespace FileSys {
class ManualContentProvider;
class VfsFilesystem;
} // namespace FileSys

class GameListModel : public QStandardItemModel {
    Q_OBJECT

public:
    enum Column {
        COLUMN_NAME,
        COLUMN_FILE_TYPE,
        COLUMN_SIZE,
        COLUMN_PLAY_TIME,
        COLUMN_ADD_ONS,
        COLUMN_COMPATIBILITY,
        COLUMN_COUNT,
    };

    explicit GameListModel(std::shared_ptr<FileSys::VfsFilesystem> vfs_,
                           FileSys::ManualContentProvider* provider_,
                           const PlayTime::PlayTimeManager& play_time_manager_,
                           Core::System& system_, QObject* parent = nullptr);
    ~GameListModel() override;

    void AddDirEntry(GameListDir* entry_items);
    void AddEntry(const QList<QStandardItem*>& entry_items, GameListDir* parent);
    void DonePopulating(const QStringList& watch_list);

    void PopulateAsync(QVector<UISettings::GameDir>& game_dirs);
    // Stops and joins the running populate worker, if any. Must be called before rebuilding the
    // content providers (CreateFactories), otherwise the worker keeps scanning a cache that is
    // being torn down underneath it.
    void StopWorker();
    void WorkerEvent();

    bool IsEmpty() const;

    void ToggleFavorite(u64 program_id);

    void RefreshGameDirectory();
    void RefreshExternalContent();
    void ResetExternalWatcher();

    void LoadCompatibilityList();

    void OnUpdateThemedIcons();
    void RetranslateUI();

    QFileSystemWatcher* GetWatcher() const;

    const CompatibilityList& GetCompatibilityList() const;

    void SetFlat(bool flat);

signals:
    void ShowList(bool show);
    void PopulatingCompleted(const QStringList& watch_list);
    void SaveConfig();

private:
    friend class GameListWorker;

    void AddFavorite(u64 program_id);
    void RemoveFavorite(u64 program_id);

    bool m_flat = false;

    std::shared_ptr<FileSys::VfsFilesystem> vfs;
    FileSys::ManualContentProvider* provider;
    CompatibilityList compatibility_list;
    const PlayTime::PlayTimeManager& play_time_manager;
    Core::System& system;

    std::unique_ptr<GameListWorker> current_worker;
    QFileSystemWatcher* watcher = nullptr;
    QFileSystemWatcher* external_watcher = nullptr;
};