/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | Copyright (C) 2020-2023 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::functionObjects::setWriteIntervalFunctionObject

Description
    Updates the writeInterval as a Function1 of time.

    If the case is running with userTime specified in controlDict then the write
    interval values returned by the Function1 are assumed to be in user-time
    rather than real-time.

    Examples of function object specification:
    \verbatim
    setWriteInterval
    {
        type            setWriteInterval;

        libs            ("libutilityFunctionObjects.so");

        writeInterval table
        (
            (0      0.005)
            (0.1    0.005)
            (0.1001 0.01)
            (0.2    0.01)
            (0.2001 0.02)
        );
    }
    \endverbatim
    will cause results to be written every 0.005s between 0 and 0.1s, every
    0.01s between 0.1 and 0.2s and every 0.02s thereafter.

SourceFiles
    setWriteIntervalFunctionObject.C

\*---------------------------------------------------------------------------*/

#ifndef functionObjects_setWriteIntervalFunctionObject_H
#define functionObjects_setWriteIntervalFunctionObject_H

#include "functionObject.H"
#include "Function1.H"
#include "Time.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace functionObjects
{

/*---------------------------------------------------------------------------*\
                  Class setWriteIntervalFunctionObject Declaration
\*---------------------------------------------------------------------------*/

class setWriteIntervalFunctionObject
:
    public functionObject
{
    // Private Data

        //- Time step function/table
        autoPtr<Function1<scalar>> writeIntervalPtr_;


public:

    //- Runtime type information
    TypeName("setWriteInterval");


    // Constructors

        //- Construct from components
        setWriteIntervalFunctionObject
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );

        //- Disallow default bitwise copy construction
        setWriteIntervalFunctionObject
        (
            const setWriteIntervalFunctionObject&
        ) = delete;


    // Destructor
    virtual ~setWriteIntervalFunctionObject();


    // Member Functions

        //- Read and reset the writeInterval Function1
        virtual bool read(const dictionary&);

        //- Return the list of fields required
        virtual wordList fields() const
        {
            return wordList::null();
        }

        //- Reset the writeInterval from the Function1 of time
        virtual bool execute();

        //- Do nothing
        virtual bool write();


    // Member Operators

        //- Disallow default bitwise assignment
        void operator=(const setWriteIntervalFunctionObject&) = delete;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace functionObjects
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //