#include "Space.hpp"
#include "ViewManager.hpp"
#include "ResourceBrowser.hpp"
#include "ParticleEditor.hpp"
#include "ModelViewer.hpp"
#include "InformationCenter.hpp"
#include "GameMode.hpp"
#include "icons/icons.hpp"
#include "specter/Menu.hpp"

namespace urde {
static logvisor::Module Log("URDE::Space");

Space::Space(ViewManager& vm, Class cls, Space* parent)
: m_spaceMenuNode(*this), m_spaceSelectBind(*this), m_vm(vm), m_class(cls), m_parent(parent) {}

specter::View* Space::buildSpaceView(specter::ViewResources& res) {
  if (usesToolbar()) {
    m_spaceView.reset(
        new specter::Space(res, *m_parent->basisView(), *this, specter::Toolbar::Position::Bottom, toolbarUnits()));
    specter::View* sview = buildContentView(res);
    m_spaceView->setContentView(sview);
    specter::Toolbar& tb = *m_spaceView->toolbar();
    specter::Icon* classIcon = SpaceMenuNode::LookupClassIcon(m_class);
    const zeus::CColor* classColor = SpaceMenuNode::LookupClassColor(m_class);
    m_spaceSelectButton.reset(new specter::Button(res, tb, &m_spaceSelectBind, "", classIcon,
                                                  specter::Button::Style::Block,
                                                  classColor ? *classColor : zeus::skWhite));
    tb.push_back(m_spaceSelectButton.get(), 0);
    buildToolbarView(res, tb);
    return m_spaceView.get();
  } else {
    m_spaceView.reset(new specter::Space(res, *m_parent->basisView(), *this, specter::Toolbar::Position::None, 0));
    specter::View* sview = buildContentView(res);
    m_spaceView->setContentView(sview);
    return m_spaceView.get();
  }
}

std::vector<Space::SpaceMenuNode::SubNodeData> Space::SpaceMenuNode::s_subNodeDats = {
    {Class::ResourceBrowser,
     "resource_browser",
     "Resource Browser",
     GetIcon(SpaceIcon::ResourceBrowser),
     {0.0f, 1.0f, 0.0f, 1.0f}},
    {Class::EffectEditor,
     "effect_editor",
     "Effect Editor",
     GetIcon(SpaceIcon::ParticleEditor),
     {1.0f, 0.5f, 0.0f, 1.0f}},
    {Class::ModelViewer, "model_viewer", "Model Viewer", GetIcon(SpaceIcon::ModelViewer), {0.95f, 0.95f, 0.95f, 1.0f}},
    {Class::InformationCenter,
     "information_center",
     "Information Center",
     GetIcon(SpaceIcon::InformationCenter),
     {0.0f, 1.0f, 1.0f, 1.0f}},
    {Class::GameMode, "game_mode", "Game Mode", GetIcon(SpaceIcon::GameMode), {}}};
std::string Space::SpaceMenuNode::s_text = "Space Types";

void Space::SpaceMenuNode::InitializeStrings(ViewManager& vm) {
  s_text = vm.translateOr("space_types", s_text.c_str());
  for (SubNodeData& sn : s_subNodeDats)
    sn.m_text = vm.translateOr(sn.m_key, sn.m_text.c_str());
}

std::unique_ptr<specter::View> Space::SpaceSelectBind::buildMenu(const specter::Button* button) {
  return std::unique_ptr<specter::View>(
      new specter::Menu(m_space.m_vm.rootView().viewRes(), *m_space.m_spaceView, &m_space.m_spaceMenuNode));
}

specter::View* RootSpace::buildSpaceView(specter::ViewResources& res) {
  specter::View* newRoot = buildContentView(res);
  m_vm.RootSpaceViewBuilt(newRoot);
  return newRoot;
}

specter::View* RootSpace::basisView() { return &m_vm.rootView(); }

specter::View* SplitSpace::buildContentView(specter::ViewResources& res) {
  int clearance = res.pixelFactor() * SPECTER_TOOLBAR_GAUGE;
  m_splitView.reset(
      new specter::SplitView(res, *m_parent->basisView(), this, m_state.axis, m_state.split, clearance, clearance));
  if (m_slots[0])
    m_splitView->setContentView(0, m_slots[0]->buildSpaceView(res));
  if (m_slots[1])
    m_splitView->setContentView(1, m_slots[1]->buildSpaceView(res));
  return m_splitView.get();
}

void SplitSpace::setChildSlot(unsigned slot, std::unique_ptr<Space>&& space) {
  if (slot > 1)
    Log.report(logvisor::Fatal, "invalid slot %u for SplitView", slot);
  m_slots[slot] = std::move(space);
  m_slots[slot]->m_parent = this;
}

void SplitSpace::joinViews(specter::SplitView* thisSplit, int thisSlot, specter::SplitView* otherSplit, int otherSlot) {
  if (thisSplit == otherSplit) {
    SplitSpace* thisSS = m_slots[thisSlot]->castToSplitSpace();
    if (thisSS) {
      int ax = thisSS->m_state.axis == specter::SplitView::Axis::Horizontal ? 1 : 0;
      const boo::SWindowRect& thisRect = m_splitView->subRect();
      const boo::SWindowRect& subRect = thisSS->m_splitView->subRect();
      int splitPx = subRect.location[ax] + subRect.size[ax] * thisSS->m_state.split - thisRect.location[ax];
      thisSS->m_state.split = splitPx / float(thisRect.size[ax]);
    }
    m_parent->exchangeSpaceSplitJoin(this, std::move(m_slots[thisSlot]));
    m_vm.BuildSpaceViews();
  } else {
    for (int i = 0; i < 2; ++i) {
      SplitSpace* otherSS = m_slots[i]->castToSplitSpace();
      if (otherSS && otherSS->m_splitView.get() == otherSplit) {
        int ax = m_state.axis == specter::SplitView::Axis::Horizontal ? 1 : 0;
        const boo::SWindowRect& thisRect = m_splitView->subRect();
        const boo::SWindowRect& subRect = otherSS->m_splitView->subRect();
        int splitPx = subRect.location[ax] + subRect.size[ax] * otherSS->m_state.split - thisRect.location[ax];
        m_state.split = splitPx / float(thisRect.size[ax]);
        exchangeSpaceSplitJoin(otherSS, std::move(otherSS->m_slots[otherSlot ^ 1]));
        m_vm.BuildSpaceViews();
        break;
      }
    }
  }
}

specter::ISplitSpaceController* Space::spaceSplit(specter::SplitView::Axis axis, int thisSlot) {
  if (m_parent) {
    /* Reject split operations with insufficient clearance */
    int clearance = m_vm.m_viewResources.pixelFactor() * SPECTER_TOOLBAR_GAUGE;
    if (axis == specter::SplitView::Axis::Horizontal) {
      if (m_spaceView->subRect().size[1] <= clearance)
        return nullptr;
    } else {
      if (m_spaceView->subRect().size[0] <= clearance)
        return nullptr;
    }

    SplitSpace* ss = new SplitSpace(m_vm, m_parent, axis);
    ss->setChildSlot(thisSlot, m_parent->exchangeSpaceSplitJoin(this, std::unique_ptr<Space>(ss)));
    ss->setChildSlot(thisSlot ^ 1, std::unique_ptr<Space>(copy(ss)));
    m_vm.BuildSpaceViews();
    return ss;
  }
  return nullptr;
}

std::unique_ptr<Space> RootSpace::exchangeSpaceSplitJoin(Space* removeSpace, std::unique_ptr<Space>&& keepSpace) {
  std::unique_ptr<Space> ret = std::move(keepSpace);

  if (removeSpace == m_spaceTree.get()) {
    m_spaceTree.swap(ret);
    m_spaceTree->m_parent = this;
  } else
    Log.report(logvisor::Fatal, "RootSpace::exchangeSpaceSplitJoin() failure");

  return ret;
}

std::unique_ptr<Space> SplitSpace::exchangeSpaceSplitJoin(Space* removeSpace, std::unique_ptr<Space>&& keepSpace) {
  std::unique_ptr<Space> ret = std::move(keepSpace);

  if (removeSpace == m_slots[0].get()) {
    m_slots[0].swap(ret);
    m_slots[0]->m_parent = this;
  } else if (removeSpace == m_slots[1].get()) {
    m_slots[1].swap(ret);
    m_slots[1]->m_parent = this;
  } else
    Log.report(logvisor::Fatal, "SplitSpace::exchangeSpaceSplitJoin() failure");

  return ret;
}

template <class Reader>
static Space* BuildNewSpace(ViewManager& vm, Space::Class cls, Space* parent, Reader& r) {
  using Class = Space::Class;
  switch (cls) {
  case Class::SplitSpace:
    return new SplitSpace(vm, parent, r);
  case Class::ResourceBrowser:
    return new ResourceBrowser(vm, parent, r);
  case Class::EffectEditor:
    return new EffectEditor(vm, parent, r);
  case Class::ModelViewer:
    return new ModelViewer(vm, parent, r);
  case Class::InformationCenter:
    return new InformationCenter(vm, parent, r);
  case Class::GameMode:
    return new GameMode(vm, parent, r);
  default:
    break;
  }
  return nullptr;
}

void Space::saveState(athena::io::IStreamWriter& w) const {
  w.writeUint32Big(atUint32(m_class));
  spaceState().write(w);
}

void Space::saveState(athena::io::YAMLDocWriter& w) const {
  w.writeUint32("class", atUint32(m_class));
  spaceState().write(w);
}

Space* Space::NewSpaceFromConfigStream(ViewManager& vm, Space* parent, ConfigReader& r) {
  Class cls = Class(r.readUint32("class"));
  return BuildNewSpace(vm, cls, parent, r);
}

RootSpace* Space::NewRootSpaceFromConfigStream(ViewManager& vm, ConfigReader& r) {
  Class cls = Class(r.readUint32("class"));
  if (cls != Class::RootSpace)
    return nullptr;
  return new RootSpace(vm, r);
}

void Space::SpaceMenuNode::SubNode::activated(const boo::SWindowCoord& coord) {
  std::unique_ptr<Space> newSpace;
  switch (m_data.m_cls) {
  case Class::InformationCenter:
    if (m_space.cls() == Class::InformationCenter)
      newSpace.reset(new InformationCenter(m_space.m_parent->m_vm, m_space.m_parent));
    break;
  case Class::EffectEditor:
    if (m_space.cls() == Class::EffectEditor)
      newSpace.reset(new EffectEditor(m_space.m_parent->m_vm, m_space.m_parent));
    break;
  case Class::ResourceBrowser:
    if (m_space.cls() == Class::ResourceBrowser)
      newSpace.reset(new ResourceBrowser(m_space.m_parent->m_vm, m_space.m_parent));
    break;
  case Class::ModelViewer:
    if (m_space.cls() == Class::ModelViewer)
      newSpace.reset(new ModelViewer(m_space.m_parent->m_vm, m_space.m_parent));
    break;
  case Class::GameMode:
    if (m_space.cls() == Class::GameMode)
      newSpace.reset(new GameMode(m_space.m_parent->m_vm, m_space.m_parent));
    break;
  default:
    break;
  }
  if (newSpace) {
    Space* parent = m_space.m_parent;
    m_space.m_parent->exchangeSpaceSplitJoin(&m_space, std::move(newSpace));
    parent->m_vm.BuildSpaceViews();
  }
}

} // namespace urde