#include "CPauseScreen.hpp"
#include "GameGlobalObjects.hpp"
#include "CSimplePool.hpp"
#include "Audio/CSfxManager.hpp"
#include "CLogBookScreen.hpp"
#include "COptionsScreen.hpp"
#include "GuiSys/CGuiSys.hpp"
#include "GuiSys/CGuiTextPane.hpp"
#include "GuiSys/CGuiWidgetDrawParms.hpp"
#include "Input/ControlMapper.hpp"

namespace urde
{
namespace MP1
{

CPauseScreen::CPauseScreen(ESubScreen subscreen,
                           const CDependencyGroup& suitDgrp,
                           const CDependencyGroup& ballDgrp)
: x0_initialSubScreen(subscreen),
  x14_strgPauseScreen(g_SimplePool->GetObj("STRG_PauseScreen")),
  x20_suitDgrp(suitDgrp), x24_ballDgrp(ballDgrp),
  x28_pauseScreenInstructions(g_SimplePool->GetObj("FRME_PauseScreenInstructions")),
  x54_frmePauseScreenId(g_ResFactory->GetResourceIdByName("FRME_PauseScreen")->id)
{
    SObjectTag frmeTag(FOURCC('FRME'), x54_frmePauseScreenId);
    x58_frmePauseScreenBufSz = g_ResFactory->ResourceSize(frmeTag);
    x5c_frmePauseScreenBuf.reset(new u8[x58_frmePauseScreenBufSz]);
    x60_loadTok = g_ResFactory->LoadResourceAsync(frmeTag, x5c_frmePauseScreenBuf.get());
    CSfxManager::SfxStart(1435, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
    x7c_screens.resize(2);
}

std::unique_ptr<CPauseScreenBase> CPauseScreen::BuildPauseSubScreen(ESubScreen subscreen,
                                                                    const CStateManager& mgr,
                                                                    CGuiFrame& frame) const
{
    switch (subscreen)
    {
    case ESubScreen::LogBook:
        return std::make_unique<CLogBookScreen>(mgr, frame, *x14_strgPauseScreen);
    case ESubScreen::Options:
        return std::make_unique<COptionsScreen>(mgr, frame, *x14_strgPauseScreen);
    case ESubScreen::Inventory:
        return std::make_unique<CInventoryScreen>(mgr, frame, *x14_strgPauseScreen, x20_suitDgrp, x24_ballDgrp);
    default:
        return {};
    }
}

void CPauseScreen::InitializeFrameGlue()
{
    x38_textpane_l1 = static_cast<CGuiTextPane*>(x34_loadedPauseScreenInstructions->FindWidget("textpane_l1"));
    x3c_textpane_r = static_cast<CGuiTextPane*>(x34_loadedPauseScreenInstructions->FindWidget("textpane_r"));
    x40_textpane_a = static_cast<CGuiTextPane*>(x34_loadedPauseScreenInstructions->FindWidget("textpane_a"));
    x44_textpane_b = static_cast<CGuiTextPane*>(x34_loadedPauseScreenInstructions->FindWidget("textpane_b"));
    x48_textpane_return = static_cast<CGuiTextPane*>(x34_loadedPauseScreenInstructions->FindWidget("textpane_return"));
    x4c_textpane_next = static_cast<CGuiTextPane*>(x34_loadedPauseScreenInstructions->FindWidget("textpane_next"));
    x50_textpane_back = static_cast<CGuiTextPane*>(x34_loadedPauseScreenInstructions->FindWidget("textpane_back"));

    x40_textpane_a->TextSupport().SetText(x14_strgPauseScreen->GetString(7)); // OPTIONS
    x40_textpane_a->TextSupport().SetFontColor(g_tweakGuiColors->GetPauseItemAmberColor());
    x44_textpane_b->TextSupport().SetText(x14_strgPauseScreen->GetString(6)); // LOG BOOK
    x44_textpane_b->TextSupport().SetFontColor(g_tweakGuiColors->GetPauseItemAmberColor());
    x40_textpane_a->SetColor(zeus::CColor::skClear);
    x44_textpane_b->SetColor(zeus::CColor::skClear);

    if (CGuiWidget* deco = x34_loadedPauseScreenInstructions->FindWidget("basewidget_deco"))
    {
        zeus::CColor color = g_tweakGuiColors->GetPauseItemAmberColor();
        color.a *= 0.75f;
        deco->SetColor(color);
    }
}

bool CPauseScreen::CheckLoadComplete(const CStateManager& mgr)
{
    if (x90_resourcesLoaded)
        return true;
    if (!x14_strgPauseScreen.IsLoaded())
        return false;
    if (!x34_loadedPauseScreenInstructions)
    {
        if (!x28_pauseScreenInstructions.IsLoaded())
            return false;
        if (!x28_pauseScreenInstructions->GetIsFinishedLoading())
            return false;
        x34_loadedPauseScreenInstructions = x28_pauseScreenInstructions.GetObj();
        x34_loadedPauseScreenInstructions->SetMaxAspect(1.77f);
        InitializeFrameGlue();
    }
    if (x60_loadTok)
    {
        if (!x60_loadTok->IsComplete())
            return false;
        for (int i=0 ; i<2 ; ++i)
        {
            CMemoryInStream s(x5c_frmePauseScreenBuf.get(), x58_frmePauseScreenBufSz);
            x64_frameInsts.push_back(CGuiFrame::CreateFrame(x54_frmePauseScreenId, *g_GuiSys, s, g_SimplePool));
            x64_frameInsts.back()->SetMaxAspect(1.77f);
        }
        x5c_frmePauseScreenBuf.reset();
        x60_loadTok.reset();
    }
    if (!x64_frameInsts[0]->GetIsFinishedLoading() || !x64_frameInsts[1]->GetIsFinishedLoading())
        return false;
    x90_resourcesLoaded = true;
    StartTransition(FLT_EPSILON, mgr, x0_initialSubScreen, 2);
    x91_initialTransition = true;
    return true;
}

void CPauseScreen::StartTransition(float time, const CStateManager& mgr, ESubScreen subscreen, int b)
{
    if (subscreen == xc_nextSubscreen)
        return;
    xc_nextSubscreen = subscreen;
    x4_ = b;
    x10_alphaInterp = time;
    std::unique_ptr<CPauseScreenBase>& newScreenSlot = x7c_screens[1 - x78_activeIdx];
    std::unique_ptr<CGuiFrame>& newScreenInst = x64_frameInsts[1 - x78_activeIdx];
    newScreenSlot = BuildPauseSubScreen(xc_nextSubscreen, mgr, *newScreenInst);
    if (x7c_screens[x78_activeIdx])
        x7c_screens[x78_activeIdx]->TransitioningAway();
    x91_initialTransition = false;
}

bool CPauseScreen::InputEnabled() const
{
    if (xc_nextSubscreen != x8_curSubscreen)
        return false;

    if (const std::unique_ptr<CPauseScreenBase>& screenSlot = x7c_screens[x78_activeIdx])
        if (screenSlot->InputDisabled())
            return false;

    if (const std::unique_ptr<CPauseScreenBase>& screenSlot = x7c_screens[1 - x78_activeIdx])
        if (screenSlot->InputDisabled())
            return false;

    return true;
}

CPauseScreen::ESubScreen CPauseScreen::GetPreviousSubscreen(ESubScreen screen)
{
    switch (screen)
    {
    case ESubScreen::Inventory:
        return ESubScreen::Options;
    case ESubScreen::Options:
        return ESubScreen::LogBook;
    case ESubScreen::LogBook:
        return ESubScreen::Inventory;
    default:
        return ESubScreen::ToGame;
    }
}

CPauseScreen::ESubScreen CPauseScreen::GetNextSubscreen(ESubScreen screen)
{
    switch (screen)
    {
    case ESubScreen::Inventory:
        return ESubScreen::LogBook;
    case ESubScreen::Options:
        return ESubScreen::Inventory;
    case ESubScreen::LogBook:
        return ESubScreen::Options;
    default:
        return ESubScreen::ToGame;
    }
}

void CPauseScreen::ProcessControllerInput(const CStateManager& mgr, const CFinalInput& input)
{
    if (!IsLoaded())
        return;

    if (x8_curSubscreen == ESubScreen::ToGame)
        return;

    bool bExits = false;
    if (std::unique_ptr<CPauseScreenBase>& curScreen = x7c_screens[x78_activeIdx])
    {
        if (curScreen->GetMode() == CPauseScreenBase::EMode::LeftTable)
            bExits = true;
        curScreen->ProcessControllerInput(input);
    }

    if (InputEnabled())
    {
        bool invalid = x8_curSubscreen == ESubScreen::ToGame;
        if (input.PStart() || (input.PB() && bExits) ||
            (x7c_screens[x78_activeIdx] && x7c_screens[x78_activeIdx]->ShouldExitPauseScreen()))
        {
            CSfxManager::SfxStart(1434, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
            StartTransition(0.5f, mgr, ESubScreen::ToGame, 2);
        }
        else
        {
            if (ControlMapper::GetPressInput(ControlMapper::ECommands::PreviousPauseScreen, input))
            {
                CSfxManager::SfxStart(1433, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
                StartTransition(0.5f, mgr, GetPreviousSubscreen(x8_curSubscreen), invalid ? 2 : 0);
            }
            else if (ControlMapper::GetPressInput(ControlMapper::ECommands::NextPauseScreen, input))
            {
                CSfxManager::SfxStart(1433, 1.f, 0.f, false, 0x7f, false, kInvalidAreaId);
                StartTransition(0.5f, mgr, GetNextSubscreen(x8_curSubscreen), invalid ? 2 : 1);
            }
        }
    }

    x38_textpane_l1->TextSupport().SetText(hecl::Format("&image=%8.8X;", u32(g_tweakPlayerRes->x74_lTrigger[input.DLTrigger()].Value())));
    x3c_textpane_r->TextSupport().SetText(hecl::Format("&image=%8.8X;", u32(g_tweakPlayerRes->x80_rTrigger[input.DRTrigger()].Value())));
    x48_textpane_return->TextSupport().SetText(hecl::Format("&image=%8.8X;", u32(g_tweakPlayerRes->x8c_startButton[input.DStart()].Value())));
    x50_textpane_back->TextSupport().SetText(hecl::Format("&image=%8.8X;", u32(g_tweakPlayerRes->x98_aButton[input.DA()].Value())));
    x4c_textpane_next->TextSupport().SetText(hecl::Format("&image=%8.8X;", u32(g_tweakPlayerRes->xa4_bButton[input.DB()].Value())));
}

void CPauseScreen::TransitionComplete()
{
    std::unique_ptr<CPauseScreenBase>& curScreen = x7c_screens[x78_activeIdx];
    curScreen.reset();
    x78_activeIdx = 1 - x78_activeIdx;
    x8_curSubscreen = xc_nextSubscreen;
    x40_textpane_a->TextSupport().SetText(x14_strgPauseScreen->GetString(int(GetPreviousSubscreen(x8_curSubscreen)) + 6));
    x44_textpane_b->TextSupport().SetText(x14_strgPauseScreen->GetString(int(GetNextSubscreen(x8_curSubscreen)) + 6));
}

void CPauseScreen::Update(float dt, const CStateManager& mgr, CRandom16& rand, CArchitectureQueue& archQueue)
{
    if (!CheckLoadComplete(mgr))
        return;

    std::unique_ptr<CPauseScreenBase>& curScreen = x7c_screens[x78_activeIdx];
    std::unique_ptr<CPauseScreenBase>& otherScreen = x7c_screens[1 - x78_activeIdx];

    if (x8_curSubscreen != xc_nextSubscreen)
    {
        x10_alphaInterp = std::max(0.f, x10_alphaInterp - dt);
        if (!curScreen || !curScreen->InputDisabled())
        {
            if (!otherScreen || otherScreen->IsReady())
            {
                if (x10_alphaInterp == 0.f)
                    TransitionComplete();
            }
        }
    }

    if (std::unique_ptr<CPauseScreenBase>& curScreen = x7c_screens[x78_activeIdx])
    {
        curScreen->Update(dt, rand, archQueue);
        zeus::CColor color = zeus::CColor::skWhite;
        color.a = std::min(curScreen->GetAlpha(), x8_curSubscreen != xc_nextSubscreen ? x10_alphaInterp / 0.5f : 1.f);
        x40_textpane_a->SetColor(color);
        x44_textpane_b->SetColor(color);
    }
}

void CPauseScreen::PreDraw()
{
    if (!IsLoaded())
        return;
    if (std::unique_ptr<CPauseScreenBase>& curScreen = x7c_screens[x78_activeIdx])
        if (curScreen->CanDraw())
            curScreen->Touch();
}

void CPauseScreen::Draw()
{
    if (!IsLoaded())
        return;

    float totalAlpha = 0.f;
    float yOff = 0.f;
    std::unique_ptr<CPauseScreenBase>& curScreen = x7c_screens[x78_activeIdx];
    if (curScreen && curScreen->CanDraw())
    {
        float useInterp = x10_alphaInterp == 0.f ? 1.f : x10_alphaInterp / 0.5f;
        float initInterp = std::min(curScreen->GetAlpha(), useInterp);
        if (xc_nextSubscreen == ESubScreen::ToGame)
            totalAlpha = useInterp;
        else if (x91_initialTransition)
            totalAlpha = initInterp;
        else
            totalAlpha = 1.f;

        curScreen->Draw(x8_curSubscreen != xc_nextSubscreen ? useInterp : 1.f, totalAlpha, 0.f);
        yOff = curScreen->GetCameraYBias();
    }

    CGuiWidgetDrawParms parms(totalAlpha, zeus::CVector3f{0.f, 15.f * yOff, 0.f});
    x34_loadedPauseScreenInstructions->Draw(parms);
}

bool CPauseScreen::ShouldSwitchToMapScreen() const
{
    return IsLoaded() && x8_curSubscreen == ESubScreen::ToMap && xc_nextSubscreen == ESubScreen::ToMap;
}

bool CPauseScreen::ShouldSwitchToInGame() const
{
    return IsLoaded() && x8_curSubscreen == ESubScreen::ToGame && xc_nextSubscreen == ESubScreen::ToGame;
}

float CPauseScreen::GetHelmetCamYOff() const
{
    CPauseScreenBase* screen = x7c_screens[x78_activeIdx].get();
    if (screen)
        return screen->GetCameraYBias();
    return 0.f;
}

}
}