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#include "CMI.hpp"
namespace CMI {
HalfMove::HalfMove()
: number(1), isBlack(false), NAG(0), parent(nullptr), mainline(nullptr) {}
HalfMove::HalfMove(const std::string &SAN)
: number(1), isBlack(false), parent(nullptr), mainline(nullptr) {}
HalfMove::HalfMove(const std::string &SAN, const std::string &comment,
std::uint16_t number, std::uint8_t NAG, bool isBlack)
: SAN(SAN), comment(comment), number(number), NAG(NAG), isBlack(isBlack),
parent(nullptr), mainline(nullptr) {}
HalfMove::~HalfMove() {
if (mainline != nullptr)
delete mainline;
for (HalfMove *v : variations)
delete v;
}
void HalfMove::SetParent(HalfMove *m) { parent = m; }
std::vector<HalfMove *> HalfMove::GetVariations() const { return variations; }
HalfMove *HalfMove::GetMainline() const { return mainline; };
HalfMove *HalfMove::GetParent() const { return parent; };
std::string HalfMove::GetSAN() const { return SAN; };
void HalfMove::SetSAN(const std::string &newSAN) { SAN = newSAN; };
std::uint16_t HalfMove::GetNumber() const { return number; };
void HalfMove::SetNumber(std::uint16_t n) { number = n; };
std::uint8_t HalfMove::GetNAG() const { return NAG; };
void HalfMove::SetNAG(std::uint8_t n) { NAG = n; };
std::string HalfMove::GetComment() const { return comment; };
void HalfMove::SetComment(const std::string &c) { comment = c; };
bool HalfMove::IsBlack() const { return isBlack; };
void HalfMove::SetIsBlack(bool b) { isBlack = b; };
void HalfMove::ClearVariations() { variations.clear(); }
void HalfMove::SetMainline(HalfMove *m) {
mainline = m;
if (m != nullptr) {
if (!this->isBlack) {
m->SetIsBlack(true);
m->SetNumber(this->number);
} else {
m->SetIsBlack(false);
m->SetNumber(this->number + 1);
}
m->SetParent(this);
}
}
void HalfMove::Promote() {
HalfMove *broot = GetBranchRoot();
if (broot != nullptr) {
HalfMove *parent = broot->GetParent();
if (parent != nullptr) {
if (parent->GetMainline() != broot) {
HalfMove *pparent = parent->GetParent();
// First update parent of parent:
if (pparent != nullptr) {
if (pparent->GetMainline() == parent)
pparent->SetMainline(broot);
else {
pparent->AddVariation(broot);
pparent->RemoveChild(parent);
}
}
// Now update parent:
parent->RemoveChild(broot);
broot->AddVariation(parent);
}
}
}
}
void HalfMove::SetAsMainline() {
HalfMove *broot = GetBranchRoot();
HalfMove *lastRoot;
// Just promote until we cannot anymore
do {
lastRoot = broot;
broot->Promote();
broot = GetBranchRoot();
} while (broot != lastRoot);
}
HalfMove *HalfMove::GetBranchRoot() {
HalfMove *m = this;
HalfMove *p = parent;
while (p != nullptr) {
if (p->GetMainline() != m) {
return (m);
}
m = p;
p = m->GetParent();
}
return m;
}
void HalfMove::AddVariation(HalfMove *m) {
m->SetIsBlack(IsBlack());
m->SetNumber(GetNumber());
m->SetParent(this);
variations.push_back(m);
}
bool HalfMove::RemoveVariation(HalfMove *m) {
std::vector<HalfMove *> vars;
bool removed = false;
for (HalfMove *v : GetVariations()) {
if (m != v)
vars.push_back(v);
else
removed = true;
}
if (removed)
variations = vars;
return removed;
}
bool HalfMove::RemoveChild(HalfMove *m) {
if (GetMainline() == m) {
mainline = nullptr;
return true;
}
return RemoveVariation(m);
}
bool HalfMove::Contains(HalfMove *m) const {
if (m == nullptr)
return false;
else if (this == m)
return true;
else if (mainline != nullptr && mainline->Contains(m)) {
return true;
} else {
for (HalfMove *v : variations) {
if (v->Contains(m))
return true;
}
}
return false;
}
bool HalfMove::IsConsistent() const {
// Check mainline
if (mainline != nullptr) {
if (isBlack == mainline->isBlack)
return false;
if (isBlack && number + 1 != mainline->number)
return false;
if (!isBlack && number != mainline->number)
return false;
if (mainline->parent != this)
return false;
if (!mainline->IsConsistent())
return false;
}
// Check variations
for (HalfMove *v : variations) {
if (number != v->number || isBlack != v->isBlack || v->parent != this)
return false;
if (!v->IsConsistent())
return false;
}
return true;
}
} // namespace CMI
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