// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2026 A-La-Karte Contributors

#pragma once

#include <QObject>
#include <QQmlEngine>

class QEvent;
class QJSEngine;

class InputManager : public QObject
{
    Q_OBJECT
    QML_ELEMENT
    QML_SINGLETON

    Q_PROPERTY(ActiveInput activeInput READ activeInput NOTIFY activeInputChanged)
    Q_PROPERTY(bool hasSeenKeyboardMouse READ hasSeenKeyboardMouse NOTIFY inputHistoryChanged)
    Q_PROPERTY(bool hasSeenGamepad READ hasSeenGamepad NOTIFY inputHistoryChanged)

public:
    enum ActiveInput {
        KeyboardMouse = 0,
        Gamepad = 1,
    };
    Q_ENUM(ActiveInput)

    static InputManager *instance();
    static InputManager *create(QQmlEngine *engine, QJSEngine *scriptEngine);

    ActiveInput activeInput() const;

    bool hasSeenKeyboardMouse() const;
    bool hasSeenGamepad() const;

Q_SIGNALS:
    void activeInputChanged();
    void inputHistoryChanged();

protected:
    bool eventFilter(QObject *watched, QEvent *event) override;

private:
    explicit InputManager(QObject *parent = nullptr);

    static InputManager *s_instance;

    ActiveInput m_activeInput = KeyboardMouse;
    bool m_hasSeenKeyboardMouse = false;
    bool m_hasSeenGamepad = false;

    void setActiveInput(ActiveInput input);
};