/*
    SPDX-FileCopyrightText: 2021 Jean-Baptiste Mardelle <jb@kdenlive.org>

    SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/

#pragma once

#include "definitions.h"

#include <QAtomicInt>
#include <QMutex>
#include <QObject>
#include <QRunnable>
#include <QUuid>

class AbstractTask : public QObject, public QRunnable
{
    Q_OBJECT
    friend class TaskManager;

public:
    enum JOBTYPE {
        NOJOBTYPE = 0,
        PROXYJOB = 1,
        CUTJOB = 2,
        STABILIZEJOB = 3,
        TRANSCODEJOB = 4,
        FILTERCLIPJOB = 5,
        THUMBJOB = 6,
        ANALYSECLIPJOB = 7,
        LOADJOB = 8,
        AUDIOTHUMBJOB = 9,
        SPEEDJOB = 10,
        CACHEJOB = 11
    };
    AbstractTask(const ObjectId &owner, JOBTYPE type, QObject* object);
    ~AbstractTask() override;
    static void closeAll();
    static void setPreferredPriority(qint64 pid);
    const ObjectId ownerId() const;
    bool operator==(const AbstractTask& b);

protected:
    ObjectId m_owner;
    QObject* m_object;
    int m_progress;
    QString m_description;
    bool m_successful;
    QAtomicInt m_isCanceled;
    QAtomicInt m_softDelete;
    QMutex m_runMutex;
    bool m_isForce;
    bool m_running;
    QUuid m_uuid;
    void run() override;
    void cleanup();

private:
    //QString cacheKey();
    JOBTYPE m_type;
    int m_priority;
    bool cancelJob(bool softDelete = false);
    bool isCanceled() const;

Q_SIGNALS:
    void jobCanceled();
};

/**
 * @brief When destroyed, notifies the taskManager that this task is done.
 */
class AbstractTaskDone {
public:
    AbstractTaskDone(int cid, AbstractTask *task)
        : m_cid(cid)
        , m_task(task) {}
    ~AbstractTaskDone();
private:
    int m_cid;
    AbstractTask *m_task;
};
