#include "specter/Tooltip.hpp"
#include "specter/ViewResources.hpp"
#include "specter/RootView.hpp"

namespace specter {

#define TOOLTIP_MAX_WIDTH 316
#define TOOLTIP_MAX_TEXT_WIDTH 300

Tooltip::Tooltip(ViewResources& res, View& parentView, std::string_view title, std::string_view message)
: View(res, parentView), m_titleStr(title), m_messageStr(message) {
  for (int i = 0; i < 16; ++i)
    m_ttVerts[i].m_color = res.themeData().tooltipBackground();

  commitResources(res, [&](boo::IGraphicsDataFactory::Context& ctx) -> bool {
    buildResources(ctx, res);
    m_ttBlockBuf = res.m_viewRes.m_bufPool.allocateBlock(res.m_factory);
    m_vertsBinding.init(ctx, res, 16, m_ttBlockBuf);
    return true;
  });

  for (int i = 0; i < 4; ++i) {
    m_cornersOutline[i].reset(new TextView(res, *this, res.m_curveFont, TextView::Alignment::Left, 1));
    m_cornersFilled[i].reset(new TextView(res, *this, res.m_curveFont, TextView::Alignment::Left, 1));
  }
  m_cornersOutline[0]->typesetGlyphs(L"\xF4F0");
  m_cornersFilled[0]->typesetGlyphs(L"\xF4F1", res.themeData().tooltipBackground());
  m_cornersOutline[1]->typesetGlyphs(L"\xF4F2");
  m_cornersFilled[1]->typesetGlyphs(L"\xF4F3", res.themeData().tooltipBackground());
  m_cornersOutline[2]->typesetGlyphs(L"\xF4F4");
  m_cornersFilled[2]->typesetGlyphs(L"\xF4F5", res.themeData().tooltipBackground());
  m_cornersOutline[3]->typesetGlyphs(L"\xF4F6");
  m_cornersFilled[3]->typesetGlyphs(L"\xF4F7", res.themeData().tooltipBackground());

  m_title.reset(new TextView(res, *this, res.m_heading14));
  m_title->typesetGlyphs(m_titleStr);
  m_message.reset(new MultiLineTextView(res, *this, res.m_mainFont));
  m_message->typesetGlyphs(m_messageStr, zeus::skWhite, int(TOOLTIP_MAX_TEXT_WIDTH * res.pixelFactor()));

  float pf = res.pixelFactor();
  std::pair<int, int> margin = m_cornersOutline[0]->queryGlyphDimensions(0);
  m_nomWidth = std::min(int(TOOLTIP_MAX_WIDTH * pf),
                        int(std::max(m_title->nominalWidth(), m_message->nominalWidth()) + margin.first * 2));
  m_nomHeight = m_title->nominalHeight() + m_message->nominalHeight() + margin.second * 3;
}

void Tooltip::setVerts(int width, int height, float pf) {
  std::pair<int, int> margin = m_cornersFilled[0]->queryGlyphDimensions(0);
  width = std::max(width, margin.first * 2);
  height = std::max(height, margin.second * 2);

  m_ttVerts[0].m_pos.assign(0, height - margin.second, 0);
  m_ttVerts[1].m_pos.assign(0, margin.second, 0);
  m_ttVerts[2].m_pos.assign(width, height - margin.second, 0);
  m_ttVerts[3].m_pos.assign(width, margin.second, 0);
  m_ttVerts[4].m_pos.assign(width, margin.second, 0);

  m_ttVerts[5].m_pos.assign(margin.first, height, 0);
  m_ttVerts[6].m_pos.assign(margin.first, height, 0);
  m_ttVerts[7].m_pos.assign(margin.first, height - margin.second, 0);
  m_ttVerts[8].m_pos.assign(width - margin.first, height, 0);
  m_ttVerts[9].m_pos.assign(width - margin.first, height - margin.second, 0);
  m_ttVerts[10].m_pos.assign(width - margin.first, height - margin.second, 0);

  m_ttVerts[11].m_pos.assign(margin.first, margin.second, 0);
  m_ttVerts[12].m_pos.assign(margin.first, margin.second, 0);
  m_ttVerts[13].m_pos.assign(margin.first, 0, 0);
  m_ttVerts[14].m_pos.assign(width - margin.first, margin.second, 0);
  m_ttVerts[15].m_pos.assign(width - margin.first, 0, 0);

  m_vertsBinding.load<decltype(m_ttVerts)>(m_ttVerts);
}

void Tooltip::resized(const boo::SWindowRect& root, const boo::SWindowRect& sub) {
  View::resized(root, sub);
  float pf = rootView().viewRes().pixelFactor();
  setVerts(m_nomWidth, m_nomHeight, pf);
  m_ttBlock.setViewRect(root, sub);
  m_ttBlockBuf.access().finalAssign(m_ttBlock);

  std::pair<int, int> margin = m_cornersFilled[0]->queryGlyphDimensions(0);

  boo::SWindowRect textRect = sub;
  textRect.location[0] += margin.first;
  textRect.location[1] += margin.second * 1.5;
  m_message->resized(root, textRect);

  textRect.location[1] += m_message->nominalHeight() + margin.second;
  m_title->resized(root, textRect);

  boo::SWindowRect cornerRect = sub;
  cornerRect.location[1] += m_nomHeight - margin.second; // Upper left
  m_cornersOutline[0]->resized(root, cornerRect);
  m_cornersFilled[0]->resized(root, cornerRect);
  cornerRect.location[0] += m_nomWidth - margin.first; // Upper right
  m_cornersOutline[1]->resized(root, cornerRect);
  m_cornersFilled[1]->resized(root, cornerRect);
  cornerRect.location[1] = sub.location[1]; // Lower right
  m_cornersOutline[2]->resized(root, cornerRect);
  m_cornersFilled[2]->resized(root, cornerRect);
  cornerRect.location[0] = sub.location[0]; // Lower left
  m_cornersOutline[3]->resized(root, cornerRect);
  m_cornersFilled[3]->resized(root, cornerRect);
}

void Tooltip::draw(boo::IGraphicsCommandQueue* gfxQ) {
  gfxQ->setShaderDataBinding(m_vertsBinding);
  gfxQ->draw(0, 16);

  for (int i = 0; i < 4; ++i)
    m_cornersFilled[i]->draw(gfxQ);

  m_title->draw(gfxQ);
  m_message->draw(gfxQ);
}

} // namespace specter