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// Author: Ivana Hrivnacova, IJCLab IN2P3/CNRS, 12/07/2024

#include <algorithm>

//
// public functions
//

// Default constructor (1)
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  const G4String& name,
  G4MergeMode mergeMode)
: G4VAccumulable(name, mergeMode),
  fVector(),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor1" << G4endl;
  }
}

// Constructor (2)
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  const Allocator& allocator,
  G4MergeMode mergeMode)
: G4VAccumulable(mergeMode),
  fVector(allocator),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor2" << G4endl;
  }
}

// Constructor (2) with name
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  const G4String& name,
  const Allocator& allocator,
  G4MergeMode mergeMode)
: G4VAccumulable(name, mergeMode),
  fVector(allocator),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor2n" << G4endl;
  }
}

// Constructor (3)
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  std::size_t count, const T& value,
  G4MergeMode mergeMode, const Allocator& allocator)
: G4VAccumulable(mergeMode),
  fVector(count, value, allocator),
  fInitValue(value),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor3" << G4endl;
  }
}

// Constructor (3) with name
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  const G4String& name,
  std::size_t count, const T& value,
  G4MergeMode mergeMode, const Allocator& allocator)
: G4VAccumulable(name, mergeMode),
  fVector(count, value, allocator),
  fInitValue(value),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor3n" << G4endl;
  }
}

// Constructor (4)
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  std::size_t count,
  G4MergeMode mergeMode, const Allocator& allocator)
: G4VAccumulable(mergeMode),
  fVector(count, allocator),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor4" << G4endl;
  }
}

// Constructor (4) with name
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  const G4String& name,
  std::size_t count,
  G4MergeMode mergeMode, const Allocator& allocator)
: G4VAccumulable(name, mergeMode),
  fVector(count, allocator),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor4n" << G4endl;
  }
}

// Constructor (10)
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  std::initializer_list<T> init,
  G4MergeMode mergeMode, const Allocator& allocator)
: G4VAccumulable(mergeMode),
  fVector(init, allocator),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor10" << G4endl;
  }
}

// Constructor (10) with name
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  const G4String& name,
  std::initializer_list<T> init,
  G4MergeMode mergeMode, const Allocator& allocator)
: G4VAccumulable(name, mergeMode),
  fVector(init, allocator),
  fMergeFunction(G4Accumulables::GetMergeFunction<T>(mergeMode))
{
  if (G4Accumulables::VerboseLevel > 1 ) {
    G4cout << "G4AccVector ctor10n" << G4endl;
  }
}

// Copy ctor
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
  const G4AccVector& rhs, const Allocator& allocator)
: G4VAccumulable(rhs),
  fVector(rhs, allocator),
  fMergeFunction(rhs.fMergeFunction)
{}

// Move ctor
//_____________________________________________________________________________
template <class T, class Allocator>
G4AccVector<T, Allocator>::G4AccVector(
   G4AccVector&& rhs, const Allocator& allocator)
: G4VAccumulable(std::move(rhs)),
  fVector(std::move(rhs), allocator),
  fMergeFunction(rhs.fMergeFunction)
{}

//_____________________________________________________________________________
template <class T, class Allocator>
void G4AccVector<T, Allocator>::Merge(const G4VAccumulable& other)
{
  const auto& otherVector = static_cast<const G4AccVector<T, Allocator>&>(other);

  if (G4Accumulables::VerboseLevel > 2 ) {
    G4cout << "G4AccVector<T, Allocator>::Merge: " << G4endl;
    G4cout << "destination: ";
    for (const auto& v : fVector) {
      G4cout << v << ", ";
    }
    G4cout << G4endl;
    G4cout << "merged data: ";
    for (const auto& v : otherVector.fVector) {
      G4cout << v << ", ";
    }
    G4cout << G4endl;
  }

  std::transform(fVector.begin(), fVector.end(), otherVector.fVector.begin(),
                 fVector.begin(), fMergeFunction);
}

//_____________________________________________________________________________
template <class T, class Allocator>
void G4AccVector<T, Allocator>::Reset()
{
  for (auto& value : fVector) {
    value = fInitValue;
  }
}

//_____________________________________________________________________________
template <class T, class Allocator>
void G4AccVector<T, Allocator>::Print(G4PrintOptions options) const
{
  if (options.Has(G4PrintOptions::kType)) {
    G4cout << "vector<" << typeid(T).name() << ">: ";
  }

  PrintBase(options);

  bool first = true;
  for (const auto& value : fVector) {
    if (! first) { G4cout << ", "; }
    G4cout << value;
    first = false;
  }
  G4cout << G4endl;
}

//_____________________________________________________________________________
template <class T, class Allocator>
void G4AccVector<T, Allocator>::SetMergeMode(G4MergeMode value)
{
  G4VAccumulable::SetMergeMode(value);
  fMergeFunction = G4Accumulables::GetMergeFunction<T>(fMergeMode);
}