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#ifndef PROCESSMANAGER_H
#define PROCESSMANAGER_H

#include <QObject>
#include <QHash>
#include <QProcessEnvironment>

#include "processmanager-global.h"
#include "process.h"
#include "processlist.h"

QT_BEGIN_NAMESPACE_PROCESSMANAGER

class ProcessFrontend;
class ProcessInfo;
class ProcessBackendFactory;
class ProcessBackendManager;
class ProcessBackend;
class IdleDelegate;

class Q_ADDON_PROCESSMANAGER_EXPORT ProcessManager : public QObject
{
    Q_OBJECT
    Q_PROPERTY(bool memoryRestricted READ memoryRestricted
               WRITE setMemoryRestricted NOTIFY memoryRestrictedChanged)
    Q_PROPERTY(IdleDelegate* idleDelegate READ idleDelegate WRITE setIdleDelegate NOTIFY idleDelegateChanged);

public:
    explicit ProcessManager(QObject *parent = 0);
    virtual ~ProcessManager();

    Q_INVOKABLE ProcessFrontend *create(const ProcessInfo& info);
    Q_INVOKABLE ProcessFrontend *create(const QVariantMap& info);

    Q_INVOKABLE QStringList      names() const;

    Q_INVOKABLE ProcessFrontend *processForName(const QString &name) const;
    Q_INVOKABLE ProcessFrontend *processForPID(qint64 PID) const;
    Q_INVOKABLE int              size() const;

    Q_INVOKABLE void             addBackendFactory(ProcessBackendFactory *factory);
    Q_INVOKABLE PidList          internalProcesses() const;

    void setMemoryRestricted(bool);
    bool memoryRestricted() const;

    IdleDelegate * idleDelegate() const;
    void           setIdleDelegate(IdleDelegate *);

signals:
    void memoryRestrictedChanged();
    void idleDelegateChanged();
    void internalProcessesChanged();
    void internalProcessError(QProcess::ProcessError);

protected slots:
    virtual void processFrontendAboutToStart();
    virtual void processFrontendAboutToStop();
    virtual void processFrontendStarted();
    virtual void processFrontendError(QProcess::ProcessError);
    virtual void processFrontendFinished(int, QProcess::ExitStatus);
    virtual void processFrontendStateChanged(QProcess::ProcessState);
    virtual void processFrontendDestroyed();

protected:
    virtual ProcessFrontend *createFrontend(ProcessBackend *backend);

protected:
    QList<ProcessFrontend*> m_processlist;
    ProcessBackendManager  *m_backend;
};

QT_END_NAMESPACE_PROCESSMANAGER

#endif // PROCESSMANAGER_H