#include "nw4r/g3d.h" // IWYU pragma: export

#include <algorithm>

namespace nw4r {
namespace g3d {

void AnmScn::GetLightSetting(LightSetting *pSetting) {
    const u32 numLightSet = GetLightSetMaxRefNumber();
    const u32 numAmbLight = GetAmbLightMaxRefNumber();
    const u32 numDiffLight = GetDiffuseLightMaxRefNumber();

    if (numLightSet > 0) {
        const u32 numLightSetObj = pSetting->GetNumLightSet();
        const u32 numLoadableSet = std::min(numLightSet, numLightSetObj);

        for (u32 i = 0; i < numLoadableSet; i++) {
            LightSet set = pSetting->GetLightSet(i);
            GetLightSet(set, i);
        }
    }

    if (numAmbLight > 0) {
        AmbLightObj *pAmbObjArray = pSetting->GetAmbLightObjArray();
        const u32 numAmbObj = pSetting->GetNumLightObj();
        const u32 numLoadableAmb = std::min(numAmbLight, numAmbObj);

        for (u32 i = 0; i < numLoadableAmb; i++) {
            AmbLightObj *pAmbObj = &pAmbObjArray[i];
            *reinterpret_cast<u32 *>(&pAmbObj->r) = GetAmbLightColor(i);
        }
    }

    if (numDiffLight > 0) {
        LightObj *pLightObjArray = pSetting->GetLightObjArray();
        const u32 numLightObj = pSetting->GetNumLightObj();
        const u32 numSpecLight = GetNumSpecularLight();

        const u32 numLight = numDiffLight + numSpecLight;
        const u32 numLoadableDiffLight = std::min(numDiffLight, numLightObj);
        const u32 numLoadableLight = std::min(numLight, numLightObj);

        for (u32 i = 0; i < numLoadableDiffLight; i++) {
            LightObj *pObj = &pLightObjArray[i];
            pObj->Disable();
        }

        for (u32 i = 0; i < numLoadableDiffLight; i++) {
            LightObj *pDiffObj = &pLightObjArray[i];
            LightObj *pSpecObj = NULL;

            if (pDiffObj->IsEnable()) {
                continue;
            }

            if (HasSpecularLight(i)) {
                const u32 specId = GetSpecularLightID(i);
                if (specId < numLoadableLight) {
                    pSpecObj = &pLightObjArray[specId];
                }
            }

            GetLight(pDiffObj, pSpecObj, i);
        }
    }
}

} // namespace g3d
} // namespace nw4r