/* Portions of this code are under:
   Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
*/
#pragma once
#include <petsc/private/matimpl.h>
/* TODO REMOVE */
#include <../src/mat/impls/aij/seq/aij.h> /* Mat_MatTransMatMult is defined here */

/*
  MATSEQDENSE format - conventional dense Fortran storage (by columns)
*/

typedef struct {
  PetscScalar  *v;             /* matrix elements */
  PetscScalar  *unplacedarray; /* if one called MatDensePlaceArray(), this is where it stashed the original */
  PetscBool     roworiented;   /* if true, row oriented input (default) */
  PetscInt      pad;           /* padding */
  PetscBLASInt *pivots;        /* pivots in LU factorization */
  PetscBLASInt  lfwork;        /* length of work array in factorization */
  PetscScalar  *fwork;         /* work array in factorization */
  PetscScalar  *tau;           /* scalar factors of QR factorization */
  Vec           qrrhs;         /* RHS for solving with QR (solution vector can't hold copy of RHS) */
  PetscBLASInt  lda;           /* Lapack leading dimension of data */
  PetscBLASInt  rank;          /* numerical rank (of a QR factorized matrix) */
  PetscBool     user_alloc;    /* true if the user provided the dense data */
  PetscBool     unplaced_user_alloc;

  /* Support for MatDenseGetColumnVec and MatDenseGetSubMatrix */
  Mat                cmat;     /* matrix representation of a given subset of columns */
  Vec                cvec;     /* vector representation of a given column */
  const PetscScalar *ptrinuse; /* holds array to be restored (just a placeholder) */
  PetscInt           vecinuse; /* if cvec is in use (col = vecinuse-1) */
  PetscInt           matinuse; /* if cmat is in use (cbegin = matinuse-1) */
} Mat_SeqDense;

PETSC_INTERN PetscErrorCode MatMatMultSymbolic_SeqDense_SeqDense(Mat, Mat, PetscReal, Mat);
PETSC_INTERN PetscErrorCode MatMatMultNumeric_SeqDense_SeqDense(Mat, Mat, Mat);
PETSC_INTERN PetscErrorCode MatTransposeMatMultSymbolic_SeqDense_SeqDense(Mat, Mat, PetscReal, Mat);
PETSC_INTERN PetscErrorCode MatTransposeMatMultNumeric_SeqDense_SeqDense(Mat, Mat, Mat);
PETSC_INTERN PetscErrorCode MatMatTransposeMultSymbolic_SeqDense_SeqDense(Mat, Mat, PetscReal, Mat);
PETSC_INTERN PetscErrorCode MatMatTransposeMultNumeric_SeqDense_SeqDense(Mat, Mat, Mat);
PETSC_INTERN PetscErrorCode MatMatMultSymbolic_SeqAIJ_SeqDense(Mat, Mat, PetscReal, Mat);
PETSC_INTERN PetscErrorCode MatMatMultNumeric_SeqAIJ_SeqDense(Mat, Mat, Mat);
PETSC_INTERN PetscErrorCode MatMatMultSymbolic_SeqBAIJ_SeqDense(Mat, Mat, PetscReal, Mat);
PETSC_INTERN PetscErrorCode MatMatMultNumeric_SeqBAIJ_SeqDense(Mat, Mat, Mat);
PETSC_INTERN PetscErrorCode MatMatMultSymbolic_SeqSBAIJ_SeqDense(Mat, Mat, PetscReal, Mat);
PETSC_INTERN PetscErrorCode MatMatMultNumeric_SeqSBAIJ_SeqDense(Mat, Mat, Mat);
PETSC_INTERN PetscErrorCode MatMatMultSymbolic_Nest_Dense(Mat, Mat, PetscReal, Mat *);
PETSC_INTERN PetscErrorCode MatMatMultNumeric_Nest_Dense(Mat, Mat, Mat);

PETSC_INTERN PetscErrorCode MatProductSetFromOptions_SeqDense(Mat);
PETSC_INTERN PetscErrorCode MatProductSetFromOptions_SeqAIJ_SeqDense(Mat);
PETSC_INTERN PetscErrorCode MatProductSetFromOptions_SeqXBAIJ_SeqDense(Mat);
PETSC_INTERN PetscErrorCode MatProductSetFromOptions_SeqDense_SeqAIJ(Mat);

PETSC_INTERN PetscErrorCode MatCreate_SeqDense(Mat);

/* Used by SeqDenseCUDA and seqDenseHIP */
PETSC_INTERN PetscErrorCode MatDuplicateNoCreate_SeqDense(Mat, Mat, MatDuplicateOption);
PETSC_INTERN PetscErrorCode MatNorm_SeqDense(Mat, NormType, PetscReal *);
PETSC_INTERN PetscErrorCode MatView_SeqDense(Mat, PetscViewer);
PETSC_INTERN PetscErrorCode MatDestroy_SeqDense(Mat);
PETSC_INTERN PetscErrorCode MatDenseGetArray_SeqDense(Mat, PetscScalar *[]);
PETSC_INTERN PetscErrorCode MatDenseRestoreArray_SeqDense(Mat, PetscScalar *[]);
PETSC_INTERN PetscErrorCode MatAXPY_SeqDense(Mat, PetscScalar, Mat, MatStructure);
PETSC_INTERN PetscErrorCode MatMultTransposeAdd_SeqDense(Mat, Vec, Vec, Vec);
PETSC_INTERN PetscErrorCode MatMultTranspose_SeqDense(Mat, Vec, Vec);
PETSC_INTERN PetscErrorCode MatMultAdd_SeqDense(Mat, Vec, Vec, Vec);
PETSC_INTERN PetscErrorCode MatMult_SeqDense(Mat, Vec, Vec);
PETSC_INTERN PetscErrorCode MatDuplicate_SeqDense(Mat, MatDuplicateOption, Mat *);
PETSC_INTERN PetscErrorCode MatSeqDenseSetPreallocation_SeqDense(Mat, PetscScalar *);
PETSC_INTERN PetscErrorCode MatCholeskyFactor_SeqDense(Mat, IS, const MatFactorInfo *);
PETSC_INTERN PetscErrorCode MatLUFactor_SeqDense(Mat, IS, IS, const MatFactorInfo *);
PETSC_INTERN PetscErrorCode MatQRFactor_SeqDense(Mat, IS, const MatFactorInfo *);
PETSC_INTERN PetscErrorCode MatCholeskyFactorSymbolic_SeqDense(Mat, Mat, IS, const MatFactorInfo *);
PETSC_INTERN PetscErrorCode MatLUFactorSymbolic_SeqDense(Mat, Mat, IS, IS, const MatFactorInfo *);
PETSC_INTERN PetscErrorCode MatQRFactorSymbolic_SeqDense(Mat, Mat, IS, const MatFactorInfo *);
PETSC_INTERN PetscErrorCode MatSeqDenseSymmetrize_Private(Mat, PetscBool);
PETSC_INTERN PetscErrorCode MatGetColumnVector_SeqDense(Mat, Vec, PetscInt);
PETSC_INTERN PetscErrorCode MatScale_SeqDense(Mat, PetscScalar);
PETSC_INTERN PetscErrorCode MatShift_SeqDense(Mat, PetscScalar);
PETSC_INTERN PetscErrorCode MatDenseGetColumnVec_SeqDense(Mat, PetscInt, Vec *);
PETSC_INTERN PetscErrorCode MatDenseRestoreColumnVec_SeqDense(Mat, PetscInt, Vec *);
PETSC_INTERN PetscErrorCode MatDenseGetColumnVecRead_SeqDense(Mat, PetscInt, Vec *);
PETSC_INTERN PetscErrorCode MatDenseRestoreColumnVecRead_SeqDense(Mat, PetscInt, Vec *);
PETSC_INTERN PetscErrorCode MatDenseGetColumnVecWrite_SeqDense(Mat, PetscInt, Vec *);
PETSC_INTERN PetscErrorCode MatDenseRestoreColumnVecWrite_SeqDense(Mat, PetscInt, Vec *);
PETSC_INTERN PetscErrorCode MatDenseGetSubMatrix_SeqDense(Mat, PetscInt, PetscInt, PetscInt, PetscInt, Mat *);
PETSC_INTERN PetscErrorCode MatDenseRestoreSubMatrix_SeqDense(Mat, Mat *);
PETSC_INTERN PetscErrorCode MatDenseSetLDA_SeqDense(Mat, PetscInt);
PETSC_INTERN PetscErrorCode MatCopy_SeqDense(Mat, Mat, MatStructure);
PETSC_INTERN PetscErrorCode MatZeroEntries_SeqDense(Mat);
PETSC_INTERN PetscErrorCode MatSetUp_SeqDense(Mat);
PETSC_INTERN PetscErrorCode MatSetRandom_SeqDense(Mat, PetscRandom);
PETSC_INTERN PetscErrorCode MatGetDiagonal_SeqDense(Mat, Vec);

#if defined(PETSC_HAVE_CUDA)
PETSC_SINGLE_LIBRARY_INTERN PetscErrorCode MatSeqDenseCUDAInvertFactors_Internal(Mat);
PETSC_INTERN PetscErrorCode                MatMatMultNumeric_SeqDenseCUDA_SeqDenseCUDA_Internal(Mat, Mat, Mat, PetscBool, PetscBool);
PETSC_INTERN PetscErrorCode                MatConvert_SeqDense_SeqDenseCUDA(Mat, MatType, MatReuse, Mat *);
#endif

#if defined(PETSC_HAVE_HIP)
PETSC_SINGLE_LIBRARY_INTERN PetscErrorCode MatSeqDenseHIPInvertFactors_Internal(Mat);
PETSC_INTERN PetscErrorCode                MatMatMultNumeric_SeqDenseHIP_SeqDenseHIP_Internal(Mat, Mat, Mat, PetscBool, PetscBool);
PETSC_INTERN PetscErrorCode                MatConvert_SeqDense_SeqDenseHIP(Mat, MatType, MatReuse, Mat *);
#endif

PETSC_EXTERN PetscErrorCode MatSeqDenseInvertFactors_Private(Mat);

PETSC_INTERN PetscErrorCode MatCreateMPIMatConcatenateSeqMat_SeqDense(MPI_Comm, Mat, PetscInt, MatReuse, Mat *);
PETSC_INTERN PetscErrorCode MatCreateMPIMatConcatenateSeqMat_MPIDense(MPI_Comm, Mat, PetscInt, MatReuse, Mat *);

PETSC_INTERN PetscErrorCode MatView_Dense_Binary(Mat, PetscViewer);
PETSC_INTERN PetscErrorCode MatLoad_Dense_Binary(Mat, PetscViewer);
PETSC_INTERN PetscErrorCode MatLoad_Dense_HDF5(Mat, PetscViewer);

PETSC_INTERN PetscErrorCode MatDenseCreateColumnVec_Private(Mat, Vec *);
