#include "Crawler.h"
#include "MenuComponent.h"

typedef Attribute A;

MenuComponent::MenuComponent(MenuType parent,geom2d::rect<float>rect,std::string label,MenuFunc onClick,ButtonAttr attributes)
	:parentMenu(parent),rect(rect),label(label),menuDest(MenuType::ENUM_END),onClick(onClick),hoverEffect(0),selectable(!(attributes&ButtonAttr::UNSELECTABLE)),selectableViaKeyboard(!(attributes&ButtonAttr::UNSELECTABLE_VIA_KEYBOARD)),memoryLeakInfo(Menu::GetMemoryLeakReportInfo()){
	Menu::unhandledComponents.push_back(this);
}

MenuComponent::MenuComponent(MenuType parent,geom2d::rect<float>rect,std::string label,MenuType menuDest,MenuFunc onClick,ButtonAttr attributes)
	:MenuComponent(parent,rect,label,onClick,attributes){
	//NOTE: This constructor also calls the other constructor above!
	this->menuDest=menuDest;
}

MenuComponent::~MenuComponent(){
	Menu*pMenu=Menu::menus[parentMenu];
	for(auto key:pMenu->buttons){
		std::vector<MenuComponent*>&components=key.second;
		std::erase_if(components,[&](MenuComponent*component){return component==this;});
	}
	for(auto key:pMenu->keyboardButtons){
		std::vector<MenuComponent*>&components=key.second;
		std::erase_if(components,[&](MenuComponent*component){return component==this;});
	}
	std::erase_if(pMenu->displayComponents,[&](MenuComponent*component){return component==this;});
}

void MenuComponent::AfterCreate(){}

void MenuComponent::Update(Crawler*game){
	if(hovered){
		hoverEffect=std::min("ThemeGlobal.HighlightTime"_F,hoverEffect+game->GetElapsedTime());
	}else{
		hoverEffect=std::max(0.f,hoverEffect-game->GetElapsedTime());
	}
}

void MenuComponent::_Update(Crawler*game){
	if(!disabled){
		Update(game);
	}
}

void MenuComponent::Draw(Crawler*game,vf2d parentPos){
	if(background){
		game->FillRect(rect.pos,rect.size,PixelLerp(Menu::themes[Menu::themeSelection].GetButtonCol(),Menu::themes[Menu::themeSelection].GetHighlightCol(),hoverEffect/"ThemeGlobal.HighlightTime"_F));
	}
	if(border){
		game->DrawRect(rect.pos,rect.size);
	}
	if(showDefaultLabel){
		game->DrawStringProp(rect.pos+rect.size/2-game->GetTextSizeProp(label)/2,label);
	}
}

void MenuComponent::_Draw(Crawler*game){
	_Draw(game,{0,0});
}

void MenuComponent::_Draw(Crawler*game,vf2d parentPos){
	if(!disabled){
		Draw(game,parentPos);
	}
}

void MenuComponent::DrawDecal(Crawler*game,vf2d parentPos,bool focused){}

void MenuComponent::_DrawDecal(Crawler*game,bool focused){
	_DrawDecal(game,{0,0},focused);
}

void MenuComponent::_DrawDecal(Crawler*game,vf2d parentPos,bool focused){
	if(!disabled){
		DrawDecal(game,parentPos,focused);
	}
}

MenuComponent*MenuComponent::PickUpDraggableItem(){
	return nullptr;
}

bool MenuComponent::DropDraggableItem(MenuComponent*draggable){
	return false;
}

bool MenuComponent::GetHoverState(Crawler*game){
	if(parentComponent!=nullptr){
		return parentComponent->GetHoverState(game,this);
	}else{
		vf2d parentWindowPos=Menu::menus[parentMenu]->pos;
		return geom2d::overlaps(geom2d::rect<float>{rect.pos+parentWindowPos,rect.size},game->GetMousePos());
	}
}

bool MenuComponent::GetHoverState(Crawler*game,MenuComponent*child){
	return false;
}

bool MenuComponent::PointWithinParent(MenuComponent*child,vi2d drawPos){
	if(parentComponent!=nullptr){
		return parentComponent->PointWithinParent(child,drawPos);
	}else{
		return true;
	}
}

bool MenuComponent::HandleOutsideDisabledButtonSelection(MenuComponent*disabledButton){
	return false;
};

vf2d MenuComponent::GetPos(){
	return rect.pos;
}

void MenuComponent::OnInventorySlotsUpdate(ITCategory cat){}

std::string MenuComponent::GetLabel(){
	return label;
}

void MenuComponent::Enable(bool enabled){
	disabled=!enabled;		
};