// bake_hold.cpp — see bake_hold.h. Pure math; no host types.

#include "core/instrument/ui/bake_hold.h"

#include <algorithm>

namespace reasampler::instrument::ui {

namespace {
constexpr int kLastIndex = note::kDivisionCount - 1;
}  // namespace

note::Division bakeHoldFromNorm(double norm) {
    if (!(norm > 0.0)) return note::divisionAt(0);  // also catches NaN
    if (norm >= 1.0) return note::divisionAt(kLastIndex);
    // Round to nearest so each rung owns an equal slice of the knob's travel; divisionAt
    // clamps, so the +0.5 landing on kDivisionCount at norm just under 1 is harmless.
    return note::divisionAt(static_cast<int>(norm * kLastIndex + 0.5));
}

double bakeHoldNorm(note::Division hold) {
    return static_cast<double>(note::divisionIndex(hold)) / static_cast<double>(kLastIndex);
}

}  // namespace reasampler::instrument::ui