/**
 * @file   material_vreepeerlings_tmpl.hh
 *
 * @author Cyprien Wolff <cyprien.wolff@epfl.ch>
 *
 *
 * @brief  Specialization of the material class for the VreePeerlings material
 *
 * @section LICENSE
 *
 * Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
 * Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
 *
 */

/* -------------------------------------------------------------------------- */
template<UInt spatial_dimension, template <UInt> class MatParent>
MaterialVreePeerlings<spatial_dimension, MatParent>::MaterialVreePeerlings(SolidMechanicsModel & model,
                                             const ID & id)  :
  Material(model, id),
  MaterialVreePeerlingsParent(model, id),
  Kapa("Kapa", *this),
  strain_rate_vreepeerlings("strain-rate-vreepeerlings", *this),
  Full_dam_value_strain("fulldam-valstrain", *this),
  Full_dam_value_strain_rate("fulldam-valstrain-rate", *this),
  Number_damage("number-damage", *this),
  equi_strain("equi-strain", *this),
  equi_strain_rate("equi-strain-rate", *this) {
  AKANTU_DEBUG_IN();

  this->registerParam("Kapaoi"          , Kapaoi          , 0.0001, _pat_parsable);
  this->registerParam("Kapac"           , Kapac           , 0.0002, _pat_parsable);
  this->registerParam("Arate"           , Arate           , 0.    , _pat_parsable);
  this->registerParam("Brate"           , Brate           , 1.    , _pat_parsable);
  this->registerParam("Crate"           , Brate           , 1.    , _pat_parsable);
  this->registerParam("Kct"             , Kct             , 1.    , _pat_parsable);
  this->registerParam("Kapao_randomness", Kapao_randomness, 0.    , _pat_parsable);

  this->Kapa.initialize(1);
  this->equi_strain.initialize(1);
  this->equi_strain_rate.initialize(1);
  this->Full_dam_value_strain.initialize(1);
  this->Full_dam_value_strain_rate.initialize(1);
  this->Number_damage.initialize(1);
  this->strain_rate_vreepeerlings.initialize(spatial_dimension * spatial_dimension);

  AKANTU_DEBUG_OUT();
}

/* -------------------------------------------------------------------------- */
template<UInt spatial_dimension, template <UInt> class MatParent>
void MaterialVreePeerlings<spatial_dimension, MatParent>::initMaterial() {
  AKANTU_DEBUG_IN();
  MaterialVreePeerlingsParent::initMaterial();
  AKANTU_DEBUG_OUT();
}

/* -------------------------------------------------------------------------- */
template<UInt spatial_dimension, template <UInt> class MatParent>
void MaterialVreePeerlings<spatial_dimension, MatParent>::computeStress(ElementType el_type, GhostType ghost_type) {
  AKANTU_DEBUG_IN();

  MaterialVreePeerlingsParent::computeStress(el_type, ghost_type);

  Real * dam = this->damage(el_type, ghost_type).storage();
  Real * equi_straint = equi_strain(el_type, ghost_type).storage();
  Real * equi_straint_rate = equi_strain_rate(el_type, ghost_type).storage();
  Real * Kapaq = Kapa(el_type, ghost_type).storage();
  Real * FullDam_Valstrain = Full_dam_value_strain(el_type, ghost_type).storage();
  Real * FullDam_Valstrain_rate = Full_dam_value_strain_rate(el_type, ghost_type).storage();
  Real * Nb_damage = Number_damage(el_type, ghost_type).storage();
  Real dt = this->model.getTimeStep();

  Array<UInt> & elem_filter = this->element_filter(el_type, ghost_type);
  Array<Real> & velocity = this->model.getVelocity();
  Array<Real> & strain_rate_vrplgs = this->strain_rate_vreepeerlings(el_type, ghost_type);

  this->model.getFEEngine().gradientOnIntegrationPoints(velocity, strain_rate_vrplgs,
						   spatial_dimension,
						   el_type, ghost_type, elem_filter);

  Array<Real>::matrix_iterator strain_rate_vrplgs_it =
        strain_rate_vrplgs.begin(spatial_dimension, spatial_dimension);

  MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN(el_type, ghost_type);

  Matrix<Real> & strain_rate = *strain_rate_vrplgs_it;

  computeStressOnQuad(grad_u, sigma, 
		      *dam, 
		      *equi_straint,
		      *equi_straint_rate,
		      *Kapaq,
		      dt,
		      strain_rate,
		      *FullDam_Valstrain,
		      *FullDam_Valstrain_rate,
		      *Nb_damage);
  ++dam;
  ++equi_straint;
  ++equi_straint_rate;
  ++Kapaq;
  ++strain_rate_vrplgs_it;
  ++FullDam_Valstrain;
  ++FullDam_Valstrain_rate;
  ++Nb_damage;

  MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END;

  AKANTU_DEBUG_OUT();
}