#include "Runtime/MP1/CArtifactDoll.hpp"

#include <algorithm>
#include <array>
#include <cmath>

#include "Runtime/CSimplePool.hpp"
#include "Runtime/CStateManager.hpp"
#include "Runtime/GameGlobalObjects.hpp"
#include "Runtime/Graphics/CBooRenderer.hpp"
#include "Runtime/Graphics/CGraphics.hpp"

#include <zeus/CColor.hpp>
#include <zeus/CTransform.hpp>

namespace metaforce::MP1 {
namespace {
constexpr std::array ArtifactPieceModels{
    "CMDL_Piece1",  // Truth
    "CMDL_Piece2",  // Strength
    "CMDL_Piece3",  // Elder
    "CMDL_Piece4",  // Wild
    "CMDL_Piece5",  // Lifegiver
    "CMDL_Piece6",  // Warrior
    "CMDL_Piece7",  // Chozo
    "CMDL_Piece8",  // Nature
    "CMDL_Piece9",  // Sun
    "CMDL_Piece10", // World
    "CMDL_Piece11", // Spirit
    "CMDL_Piece12"  // Newborn
};

constexpr std::array<CAssetId, 12> ArtifactHeadScans{
    0x32C9DDCE, // Truth
    0xB45DAF60, // Strength
    0x7F017CC5, // Elder
    0x62044C7D, // Wild
    0xA9589FD8, // Lifegiver
    0x2FCCED76, // Warrior
    0xE4903ED3, // Chozo
    0x15C68C06, // Nature
    0xDE9A5FA3, // Sun
    0xFBBE9D9A, // World
    0x30E24E3F, // Spirit
    0xB6763C91  // Newborn
};

constexpr zeus::CColor ArtifactPreColor{0.4f, 0.68f, 0.88f, 0.8f};
constexpr zeus::CColor ArtifactPostColor{1.f, 0.63f, 0.02f, 1.f};
} // Anonymous namespace

CArtifactDoll::CArtifactDoll() {
  x10_lights.resize(2, CLight::BuildDirectional(zeus::skForward, zeus::skWhite));
  x20_actorLights = std::make_unique<CActorLights>(8, zeus::skZero3f, 4, 4, false, false, false, 0.1f);
  x0_models.reserve(ArtifactPieceModels.size());
  for (const char* const model : ArtifactPieceModels) {
    x0_models.emplace_back(g_SimplePool->GetObj(model));
  }
}

int CArtifactDoll::GetArtifactHeadScanIndex(CAssetId scanId) {
  for (size_t i = 0; i < ArtifactHeadScans.size(); ++i) {
    if (ArtifactHeadScans[i] == scanId) {
      return int(i);
    }
  }

  return -1;
}

CAssetId CArtifactDoll::GetArtifactHeadScanFromItemType(CPlayerState::EItemType item) {
  if (item < CPlayerState::EItemType::Truth || item > CPlayerState::EItemType::Newborn) {
    return -1;
  }

  return ArtifactHeadScans[size_t(item) - 29];
}

void CArtifactDoll::UpdateArtifactHeadScan(const CStateManager& mgr, float delta) {
  CPlayerState& playerState = *mgr.GetPlayerState();
  for (size_t i = 0; i < ArtifactHeadScans.size(); ++i) {
    if (mgr.GetPlayerState()->HasPowerUp(CPlayerState::EItemType(i + 29))) {
      const CAssetId id = ArtifactHeadScans[i];
      playerState.SetScanTime(id, std::min(playerState.GetScanTime(id) + delta, 1.f));
    }
  }
}

void CArtifactDoll::CompleteArtifactHeadScan(const CStateManager& mgr) { UpdateArtifactHeadScan(mgr, 1.f); }

void CArtifactDoll::Draw(float alpha, const CStateManager& mgr, bool inArtifactCategory, int selectedArtifact) {
  if (!IsLoaded())
    return;
  SCOPED_GRAPHICS_DEBUG_GROUP("CArtifactDoll::Draw", zeus::skPurple);

  alpha *= x24_fader;
  g_Renderer->SetPerspective(55.f, g_Viewport.x8_width, g_Viewport.xc_height, 0.2f, 4096.f);
  CGraphics::SetViewPointMatrix(zeus::CTransform::Translate(0.f, -10.f, 0.f));

  float angle = CGraphics::GetSecondsMod900() * 2.f * M_PIF * 0.25f;
  CGraphics::SetModelMatrix(zeus::CTransform::RotateX(zeus::degToRad(std::sin(angle) * 8.f)) *
                            zeus::CTransform::RotateZ(zeus::degToRad(std::cos(angle) * 8.f)) *
                            zeus::CTransform::RotateX(M_PIF / 2.f) * zeus::CTransform::Scale(0.2f));
  CGraphics::SetCullMode(ERglCullMode::None);

  CPlayerState& playerState = *mgr.GetPlayerState();
  for (size_t i = 0; i < x0_models.size(); ++i) {
    TLockedToken<CModel>& model = x0_models[i];
    zeus::CColor color = ArtifactPreColor;
    if (playerState.HasPowerUp(CPlayerState::EItemType(i + 29))) {
      if (ArtifactHeadScans[i].IsValid()) {
        float interp = (playerState.GetScanTime(ArtifactHeadScans[i]) - 0.5f) * 2.f;
        if (interp < 0.5f)
          color = zeus::CColor::lerp(ArtifactPreColor, zeus::skWhite, 2.f * interp);
        else
          color = zeus::CColor::lerp(zeus::skWhite, ArtifactPostColor, 2.f * (interp - 0.5f));
      } else {
        color = ArtifactPostColor;
      }
    }

    if (inArtifactCategory && i == size_t(selectedArtifact)) {
      float interp = (std::sin(CGraphics::GetSecondsMod900() * 2.f * M_PIF) + 1.f) * 0.5f;
      color = zeus::CColor::lerp(zeus::skWhite, color, interp);
      color.a() *= zeus::clamp(0.f, 1.25f - interp, 1.f);
    }

    CModelFlags flags(7, 0, 3, zeus::CColor(1.f, 0.f));
    // TODO?
    //flags.m_extendedShader = EExtendedShader::SolidColorFrontfaceCullLEqualAlphaOnly;
    x20_actorLights->ActivateLights(model->GetInstance());
    model->Draw(flags);

    flags.x4_color = color;
    flags.x4_color.a() *= alpha;
    model->Draw({8, 0, 1, flags.x4_color});
  }
  CGraphics::SetCullMode(ERglCullMode::Back);
  // CGraphics::DisableAllLights();
}

void CArtifactDoll::UpdateActorLights() {
  x10_lights[0] = CLight::BuildDirectional(
      (zeus::skForward + 0.25f * zeus::skRight + 0.1f * zeus::skDown).normalized(),
      zeus::skWhite);
  x10_lights[1] = CLight::BuildDirectional(-zeus::skForward, zeus::skBlack);
  x20_actorLights->BuildFakeLightList(x10_lights, zeus::CColor(0.25f, 1.f));
}

void CArtifactDoll::Update(float dt, const CStateManager& mgr) {
  if (!CheckLoadComplete())
    return;

  x24_fader = std::min(x24_fader + 2.f * dt, 1.f);
  if (std::fabs(x24_fader - 1.f) < 0.00001f)
    UpdateArtifactHeadScan(mgr, 0.5f * dt * 0.5f);
  UpdateActorLights();
}

void CArtifactDoll::Touch() {
  if (!CheckLoadComplete())
    return;

  for (TLockedToken<CModel>& model : x0_models)
    model->Touch(0);
}

bool CArtifactDoll::CheckLoadComplete() {
  if (IsLoaded()) {
    return true;
  }

  const bool allLoaded =
      std::all_of(x0_models.cbegin(), x0_models.cend(), [](const auto& model) { return model.IsLoaded(); });
  if (!allLoaded) {
    return false;
  }

  x28_24_loaded = true;
  return true;
}

} // namespace metaforce::MP1