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#include "src/tint/lang/core/type/subgroup_matrix.h"

#include "src/tint/lang/core/type/manager.h"

TINT_INSTANTIATE_TYPEINFO(tint::core::type::SubgroupMatrix);

namespace tint::core::type {

SubgroupMatrix::SubgroupMatrix(SubgroupMatrixKind kind,
                               const type::Type* subtype,
                               uint32_t columns,
                               uint32_t rows)
    : Base(Hash(tint::TypeCode::Of<SubgroupMatrix>().bits, kind, columns, rows, subtype),
           core::type::Flags{
               Flag::kConstructable,
               Flag::kCreationFixedFootprint,
               Flag::kFixedFootprint,
           }),
      kind_(kind),
      subtype_(subtype),
      columns_(columns),
      rows_(rows) {}

SubgroupMatrix::~SubgroupMatrix() = default;

bool SubgroupMatrix::Equals(const UniqueNode& other) const {
    if (auto* v = other.As<SubgroupMatrix>()) {
        return v->kind_ == kind_ && v->rows_ == rows_ && v->columns_ == columns_ &&
               v->subtype_ == subtype_;
    }
    return false;
}

uint32_t SubgroupMatrix::Align() const {
    return subtype_->Align();
}

TypeAndCount SubgroupMatrix::Elements(const type::Type* /* type_if_invalid = nullptr */,
                                      uint32_t /* count_if_invalid = 0 */) const {
    return {subtype_, columns_};
}

std::string SubgroupMatrix::FriendlyName() const {
    StringStream out;
    out << "subgroup_matrix_";
    switch (kind_) {
        case SubgroupMatrixKind::kLeft:
            out << "left";
            break;
        case SubgroupMatrixKind::kRight:
            out << "right";
            break;
        case SubgroupMatrixKind::kResult:
            out << "result";
            break;
        case SubgroupMatrixKind::kUndefined:
            TINT_UNREACHABLE();
    }
    out << "<" << subtype_->FriendlyName() << ", " << columns_ << ", " << rows_ << ">";
    return out.str();
}

SubgroupMatrix* SubgroupMatrix::Clone(CloneContext& ctx) const {
    auto* ty = subtype_->Clone(ctx);
    return ctx.dst.mgr->Get<SubgroupMatrix>(kind_, ty, columns_, rows_);
}

}  // namespace tint::core::type
