/* Copyright (c) FFLAS-FFPACK
 * Written by Bastien Vialla <bastien.vialla@lirmm.fr>
 * ========LICENCE========
 * This file is part of the library FFLAS-FFPACK.
 *
 * FFLAS-FFPACK is free software: you can redistribute it and/or modify
 * it under the terms of the  GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * ========LICENCE========
 */

#define __DLP_CHALLENGE

#include <iostream>
#include <vector>
#include <sstream>
#include <cstdio>
#include <cstdlib>

#include "gmpxx.h"
#include <givaro/zring.h>
#include <givaro/modular.h>
#include <givaro/modular-balanced.h>
#include <givaro/givinteger.h>
#include <recint/recint.h>
#include <givaro/givintprime.h>


#include "fflas-ffpack/fflas/fflas_sparse.h"
#include "fflas-ffpack/utils/args-parser.h"
#include "fflas-ffpack/field/rns-integer-mod.h"
#include "fflas-ffpack/fflas/fflas_sparse/read_sparse.h"
#include "fflas-ffpack/utils/timer.h"
#include "fflas-ffpack/utils/test-utils.h"
#include "fflas-ffpack/utils/flimits.h"

#ifdef __FFLASFFPACK_USE_OPENMP
typedef FFLAS::OMPTimer TTimer;
#else
typedef FFLAS::Timer TTimer;
#endif

using namespace RecInt;
using namespace std;
using namespace FFLAS;
using namespace Givaro;


int main(int argc, char **argv) {
    using Field        = Modular<Integer>;
    using FieldMat     = ZRing<double>;
    using FieldComp    = FFPACK::RNSIntegerMod<FFPACK::rns_double>;
    using FieldElement = RecInt::rmint<7>;
    using FieldRec     = ZRing<FieldElement>;
    using SparseMatrix = FFLAS::Sparse<FieldRec, FFLAS::SparseMatrix_t::HYB_ZO>;

    uint64_t seed = getSeed();
    Integer q = -1;
    int b = 128;
    int blockSize = 1;
    std::string matrixFile = "data/mat11.sms";
    int nIter = 100;

    static Argument as[] = {
        { 'q', "-q Q", "Set the field characteristic (-1 for random).",   TYPE_INTEGER , &q },
        { 'b', "-b B", "Set the bitsize of the random characteristic.",   TYPE_INT , &b },
        { 'k', "-k K", "Set the size of the block (1 by default).",       TYPE_INT, &blockSize },
        { 'n', "-n N", "Set the size of the block (1 by default).",       TYPE_INT, &nIter },
        { 'f', "-f FILE", "Set matrix file.",                             TYPE_STR, &matrixFile },
        { 's', "-s seed", "Set seed for the random generator", TYPE_INT, &seed },
        END_OF_ARGUMENTS };

    FFLAS::parseArguments(argc, argv, as);

    // Construct Givaro::Integer field
    Field *F= chooseField<Field>(q,b,seed);
    if (F==nullptr) exit(0);
    Integer p;
    F->cardinality(p);
    cout << "Prime p: " << p << endl;

    RecInt::ruint<7> pRec;
    // RecInt::mpz_to_ruint(pRec, FieldElement(p));
    FieldElement::init_module(ruint<7>(p));
    FieldRec Frec;
    // Pointers for the matrix
    index_t *row = nullptr, *col = nullptr;
    typename FieldRec::Element_ptr dat;
    index_t rowdim, coldim;
    uint64_t nnz;

    // Read the matrix
    readSmsFormat(matrixFile, Frec, row, col, dat, rowdim, coldim, nnz);
    vector<index_t> rowCoo(nnz, 0);
    for(size_t i = 0 ; i < rowdim ; ++i){
        for(size_t j = row[i] ; j < row[i+1] ; ++j){
            rowCoo[j] = i;
        }
    }

    // Build the matrix
    SparseMatrix A;
    FFLAS::sparse_init(Frec, A, rowCoo.data(), col, dat, rowdim, coldim, nnz);

    FFLAS::fflas_delete(row);
    FFLAS::fflas_delete(col);
    FFLAS::fflas_delete(dat);
    rowCoo.resize(0);

    vector<FieldElement> x(coldim*blockSize, 1), y(rowdim*blockSize, 0);

    pfspmm(Frec, A, blockSize, x.data(), blockSize, 0, y.data(), blockSize);

    return 0;
}

/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// vim:sts=4:sw=4:ts=4:et:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s