/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
     \\/     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::ManualInjection

Description
    Manual injection

    - User specifies
      - Total mass to inject
      - Parcel positions in file @c positionsFile
      - Initial parcel velocity
    - Parcel diameters obtained by PDF model
    - All parcels introduced at SOI

SourceFiles
    ManualInjection.C

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

#ifndef ManualInjection_H
#define ManualInjection_H

#include <lagrangianIntermediate/InjectionModel.H>
#include <pdf/pdf.H>

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
                          Class ManualInjection Declaration
\*---------------------------------------------------------------------------*/

template<class CloudType>
class ManualInjection
:
    public InjectionModel<CloudType>
{
    // Private data

        //- Name of file containing positions data
        const word positionsFile_;

        //- Field of parcel positions
        vectorIOField positions_;

        //- Field of parcel diameters
        scalarList diameters_;

        //- Initial parcel velocity
        const vector U0_;

        //- Parcel size PDF model
        const autoPtr<pdfs::pdf> parcelPDF_;

        //- Number of particles represented by each parcel
        scalar nParticlesPerParcel_;


protected:

    // Protected member functions

        //- Number of parcels to introduce over the time step relative to SOI
        label parcelsToInject
        (
            const scalar time0,
            const scalar time1
        ) const;

        //- Volume of parcels to introduce over the time step relative to SOI
        scalar volumeToInject
        (
            const scalar time0,
            const scalar time1
        ) const;


public:

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


    // Constructors

        //- Construct from dictionary
        ManualInjection
        (
            const dictionary& dict,
            CloudType& owner
        );


    //- Destructor
    virtual ~ManualInjection();


    // Member Functions

        //- Flag to indicate whether model activates injection model
        bool active() const;

        //- Return the end-of-injection time
        scalar timeEnd() const;


        // Injection geometry

            //- Set the injection position and owner cell
            virtual void setPositionAndCell
            (
                const label parcelI,
                const label nParcels,
                const scalar time,
                vector& position,
                label& cellOwner
            );

            //- Set the parcel properties
            virtual void setProperties
            (
                const label parcelI,
                const label nParcels,
                const scalar time,
                typename CloudType::parcelType& parcel
            );

            //- Flag to identify whether model fully describes the parcel
            virtual bool fullyDescribed() const;

            //- Return flag to identify whether or not injection of parcelI is
            //  permitted
            virtual bool validInjection(const label parcelI);
};


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

} // End namespace Foam

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

#ifdef NoRepository
#   include <lagrangianIntermediate/ManualInjection.C>
#endif

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

#endif

// ************************ vim: set sw=4 sts=4 et: ************************ //
