#include <pd/overlays/message_mgr.hpp>

namespace PD {
MessageMgr::Container::Container(const std::string& title,
                                 const std::string& msg) {
  this->title = title;
  this->msg = msg;
  size = vec2(150, 50);
  // Precalculate colors
  col_bg = PD::Color("#111111aa");
  col_text = PD::Color("#ffffff");
  // Setup Flyin Animation
  FlyIn();
}
void MessageMgr::Container::Render(PD::LI::Renderer::Ref ren) {
  // Create a Temp var to not recalculate
  // the position everytime we use it
  // even if the calculation would always
  // result in the same we would waste a lot
  // of cpu performance which is a big issue
  // espeacilly on the Old3ds...
  vec2 tpos = pos;
  // Check if it goes out of screen
  // Instant kills cause it will never be on
  // Screen agains
  if (tpos[1] + size[1] < 0) {
    kill = true;
  }
  // If should be removed modify the color by fade
  // Use a temp var as well to not call it twice
  if (tbr) {
    float f = 1.f - pos.Progress();
    col_bg.a(col_bg.a() * f);
    col_text.a(col_text.a() * f);
  }
  // Create a backup Layer to Render
  // Text onto the next layer
  int l = ren->Layer();
  ren->DrawRectSolid(tpos, size, col_bg);
  ren->Layer(l + 1);
  ren->DrawText(tpos + vec2(4, 2), col_text, title);
  ren->DrawText(tpos + vec2(4, 16), col_text, msg);
  ren->Layer(l);
}
void MessageMgr::Container::Update(int slot, float delta) {
  // Increase lifetime
  lifetime += delta / 1000.f;
  // Trigger move up Animation if
  // the slot got changed
  if (s != slot) {
    ToBeMoved(slot);
    s = slot;
  }
  // Update the animations
  pos.Update(delta);
  // Trigger the remove Event if lifetime
  // goes beyond 4 secods
  if (lifetime > 4 && !tbr) {
    ToBeRemoved();
  }
}
void MessageMgr::Container::FlyIn() {
  // Come from out of the screen to 5, 185 into
  // The screen as EaseInSine in 0.5 seconds
  pos.From(vec2(-size[0], 240 - size[1] - 5))
      .To(vec2(5, 240 - size[1] - 5))
      .In(0.5)
      .As(pos.EaseInSine);
}
void MessageMgr::Container::ToBeMoved(int slot) {
  // Bit more special
  // Get the current pos as temp one
  vec2 tpos = pos;
  // Calculate a temp Startpos which
  // is the endpos of Flyin if
  // it is fully playd (see next comment)
  float spos = 240 - size[1] - 5;
  // Now from the Current Position Move up by
  // The Number of slot * the size.y + 5
  // and make sure it flys diagonal if the
  // Flyin hasn't ended yet. This animation uses EaseInSine
  // And does it's move in 0.4 seconds to not have
  // The new one and this one in collision for to much time
  pos.From(tpos)
      .To(vec2(5, spos - slot * (size[1] + 5)))
      .As(pos.EaseInSine)
      .In(0.4);
}

void MessageMgr::Container::ToBeRemoved() {
  // This effect uses EaseOutSine and as well uses the fade anim
  tbr = true;
  // We Force set the Position to Finished to avoid collision
  // to the ToBeMoved Animation And then set an EaseOutSine in 0.5
  // seconds to move the Message 30 pixels up while fading out
  pos.Finish();
  vec2 tpos = pos;
  pos.From(tpos).To(tpos - vec2(0, 30)).As(pos.EaseOutSine).In(0.5);
}

void MessageMgr::Push(const std::string& title, const std::string& text) {
  // Simply Add a New Message Container
  msgs.push_back(Container::New(title, text));
}

void MessageMgr::Update(float delta) {
  ren->OnScreen(ren->GetScreen(false));
  for (size_t i = 0; i < msgs.size(); i++) {
    // Update the Animation Handlers and Move older
    // Messages up if a new one got pushed
    msgs[i]->Update(msgs.size() - i - 1, delta);
    msgs[i]->Render(ren);
  }
  /// OMG HE LOOPS TWICE OVER THE OBJECTS TO
  /// CHECK IF THEY CAN BE REMOVED WOW.......
  /// Just my Stupid fix for the flickering
  /// Of the other messages if one get's removed
  for (size_t i = 0; i < msgs.size(); i++) {
    if (msgs[i]->ShouldBeRemoved()) {
      msgs.erase(msgs.begin() + i);
    }
  }
}
}  // namespace PD