#include "Runtime/MP1/CPauseScreenBlur.hpp"

#include "Runtime/CSimplePool.hpp"
#include "Runtime/GameGlobalObjects.hpp"
#include "Runtime/Audio/CSfxManager.hpp"

namespace urde::MP1 {

CPauseScreenBlur::CPauseScreenBlur()
: x4_mapLightQuarter(g_SimplePool->GetObj("TXTR_MapLightQuarter")), x50_24_blurring(false), x50_25_gameDraw(true) {}

void CPauseScreenBlur::OnNewInGameGuiState(EInGameGuiState state, CStateManager& stateMgr) {
  switch (state) {
  case EInGameGuiState::Zero:
  case EInGameGuiState::InGame:
    SetState(EState::InGame);
    break;
  case EInGameGuiState::MapScreen:
    SetState(EState::MapScreen);
    break;
  case EInGameGuiState::PauseSaveGame:
    SetState(EState::SaveGame);
    break;
  case EInGameGuiState::PauseHUDMessage:
    SetState(EState::HUDMessage);
    break;
  case EInGameGuiState::PauseGame:
  case EInGameGuiState::PauseLogBook:
    SetState(EState::Pause);
    break;
  default:
    break;
  }
}

void CPauseScreenBlur::SetState(EState state) {
  if (x10_prevState == EState::InGame && state != EState::InGame) {
    CSfxManager::SetChannel(CSfxManager::ESfxChannels::PauseScreen);
    if (state == EState::HUDMessage)
      CSfxManager::SfxStart(SFXui_into_hud_message, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
    else if (state == EState::MapScreen)
      CSfxManager::SfxStart(SFXui_into_map_screen, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
    x18_blurAmt = FLT_EPSILON;
  }

  if (state == EState::InGame && (x10_prevState != EState::InGame || x14_nextState != EState::InGame)) {
    CSfxManager::SetChannel(CSfxManager::ESfxChannels::Game);
    if (x10_prevState == EState::HUDMessage)
      CSfxManager::SfxStart(SFXui_outof_hud_message, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
    else if (x10_prevState == EState::MapScreen)
      CSfxManager::SfxStart(SFXui_outof_map_screen, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
    x18_blurAmt = -1.f;
  }

  x14_nextState = state;
}

void CPauseScreenBlur::OnBlurComplete(bool b) {
  if (x14_nextState == EState::InGame && !b)
    return;
  x10_prevState = x14_nextState;
  if (x10_prevState == EState::InGame)
    x50_25_gameDraw = true;
}

void CPauseScreenBlur::Update(float dt, const CStateManager& stateMgr, bool b) {
  if (x10_prevState == x14_nextState)
    return;

  if (x18_blurAmt < 0.f)
    x18_blurAmt = std::min(0.f, 2.f * dt + x18_blurAmt);
  else
    x18_blurAmt = std::min(1.f, 2.f * dt + x18_blurAmt);

  if (x18_blurAmt == 0.f || x18_blurAmt == 1.f)
    OnBlurComplete(b);

  if (x18_blurAmt == 0.f && b) {
    x1c_camBlur.DisableBlur(0.f);
  } else {
    x1c_camBlur.SetBlur(EBlurType::HiBlur, g_tweakGui->GetPauseBlurFactor() * std::fabs(x18_blurAmt), 0.f);
    x50_24_blurring = true;
  }
}

void CPauseScreenBlur::Draw(const CStateManager&) {
  SCOPED_GRAPHICS_DEBUG_GROUP("CPauseScreenBlur::Draw", zeus::skPurple);
  x1c_camBlur.Draw(true);
  const float t = std::fabs(x18_blurAmt);
  if (x1c_camBlur.GetCurrType() != EBlurType::NoBlur) {
    const auto filterColor = zeus::CColor::lerp(zeus::skWhite, g_tweakGuiColors->GetPauseBlurFilterColor(), t);
    m_quarterFilter.DrawFilter(EFilterShape::FullscreenQuarters, filterColor, t);
    const auto scanLinesColor = zeus::CColor::lerp(zeus::skWhite, zeus::CColor(0.75f, 1.f), t);
    m_linesFilter.draw(scanLinesColor);
  }

  if (x50_24_blurring /*&& x1c_camBlur.x2d_noPersistentCopy*/) {
    x50_24_blurring = false;
    x50_25_gameDraw = false;
  }
}

} // namespace urde::MP1