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module SELF_ECDGModel3D

  use SELF_ECDGModel3D_t
  use SELF_GPU
  use SELF_GPUInterfaces
  use iso_c_binding

  implicit none

  type,extends(ECDGModel3D_t),public :: ECDGModel3D

  contains

    procedure :: CalculateTendency => CalculateTendency_ECDGModel3D

  endtype ECDGModel3D

contains

  subroutine CalculateTendency_ECDGModel3D(this)
    implicit none
    class(ECDGModel3D),intent(inout) :: this
    ! Local
    integer :: ndof

    call this%solution%BoundaryInterp()
    call this%solution%SideExchange(this%mesh)

    call this%PreTendency()
    call this%SetBoundaryCondition()

    if(this%gradient_enabled) then
      call this%CalculateSolutionGradient()
      call this%SetGradientBoundaryCondition()
      call this%solutionGradient%AverageSides()
    endif

    call this%SourceMethod()
    call this%BoundaryFlux()

    call this%TwoPointFluxMethod()

    call this%twoPointFlux%MappedDivergence(this%fluxDivergence%interior_gpu)

    call ECDGSurfaceContribution_3D_gpu( &
      this%flux%boundarynormal_gpu, &
      this%geometry%J%interior_gpu, &
      this%solution%interp%bMatrix_gpu, &
      this%solution%interp%qWeights_gpu, &
      this%fluxDivergence%interior_gpu, &
      this%solution%interp%N,this%solution%nVar,this%mesh%nElem)

    ndof = this%solution%nVar* &
           this%mesh%nElem* &
           (this%solution%interp%N+1)* &
           (this%solution%interp%N+1)* &
           (this%solution%interp%N+1)

    call CalculateDSDt_gpu(this%fluxDivergence%interior_gpu, &
                           this%source%interior_gpu, &
                           this%dSdt%interior_gpu,ndof)

  endsubroutine CalculateTendency_ECDGModel3D

endmodule SELF_ECDGModel3D