/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2016 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/>.

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

#include "BetaGrid.H"

#include "error.H"
#include "dictionary.H"
#include "SubList.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

// const scalar Foam::CMC::BetaGrid::staticData();


// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //


// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //


// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::CMC::BetaGrid::BetaGrid(const dictionary& dict)
:
    etaCut_(dict.lookup("detailedEta")),
    nSpacings_(dict.lookup("detailedN")),
    etaSpace_(sum(nSpacings_)+3)
{
    // Check for input list size
    if (etaCut_.size() != nSpacings_.size() + 1)
    {
        FatalErrorInFunction
            << "Number of grid interval points does not match number of grid sizes"
            << abort(FatalError);
    }

    // Check for evenness of number of spacings in each interval
    forAll (nSpacings_, i)
    {
        if ((nSpacings_[i] % 2) == 1)
        {
            FatalErrorInFunction
                << "Number of spacings in intervals should be even"
                << abort(FatalError);
        }
    }

    forAll(nSpacings_, i)
    {
        const label ns = nSpacings_[i];
        const labelList::subList prev(nSpacings_, i);
        const label baseI = sum(prev) + 1;

        const scalar low = etaCut_[i];
        const scalar upp = etaCut_[i+1];
        const scalar delta = (upp - low) / scalar(ns);

        for (label j = 0; j < ns; j++)
        {
            etaSpace_[baseI+j] = low + delta * j;
        }
    }
    etaSpace_[0] = 0.0;
    etaSpace_[etaSpace_.size()-2] = etaCut_.last();
    etaSpace_[etaSpace_.size()-1] = 1.0;
}


Foam::CMC::BetaGrid::BetaGrid(const BetaGrid&)
{}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::CMC::BetaGrid::~BetaGrid()
{}


// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //


// * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * * //

void Foam::CMC::BetaGrid::operator=(const BetaGrid& rhs)
{
    // Check for assignment to self
    if (this == &rhs)
    {
        FatalErrorInFunction
            << "Attempted assignment to self"
            << abort(FatalError);
    }
}

// * * * * * * * * * * * * * * Friend Functions  * * * * * * * * * * * * * * //


// * * * * * * * * * * * * * * Friend Operators * * * * * * * * * * * * * * //


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