#include "ConsoleMenu.h"
#include <vector>
#include <string>
#include <iostream>
#include <cstdlib>
#include <Windows.h>
using namespace std;

//color theme
static WORD titleTextTheme = BACKGROUND_BLUE|BACKGROUND_GREEN;			//Cyan background with Black text
static WORD highLightedTextTheme =	BACKGROUND_RED|BACKGROUND_GREEN;	//Yellow background with Black text
static WORD normalTextTheme = FOREGROUND_INTENSITY;						//Black background with White text
//console handle
static HANDLE handle;

string menuBase::cutline = "=====================================";
menuManager* menuManager::instance = nullptr;

menuManager::menuManager(){
	handle = GetStdHandle(STD_OUTPUT_HANDLE);	//Get console handle...
	menus.clear();
}

void menuManager::SetDefaultUI(string menuID){
	for(unsigned i=0;i<menus.size();i++){
		if(menuID == menus[i]->menuID){
			defaultMenu = menuID;
			return;
		}
	}
	//Case not found...
	std::cout<<"invaild menuID: "<<menuID<<std::endl;
	system("pause");
	if(activeMenu!=nullptr){	//If possible,refresh active UI...
		activeMenu->DrawMenu();
	}
}


void menuManager::UIRegistion(menuBase* pmenu){
    pmenu->numOfStatus = pmenu->options.size();
    pmenu->highLightedIndex = 0;
	menus.push_back(pmenu);
}

void menuManager::UITransform(string menuID){
	for(unsigned i=0;i<menus.size();i++){
		if(menuID == menus[i]->menuID){
			activeMenu = menus[i];
			menus[i]->DrawMenu();
			return;
		}
	}
	//Case not Found...
	cout<<"invaild menuID: "<<menuID<<endl;
	system("pause");
	if(activeMenu!=nullptr){	//If possible,redraw active UI...
		activeMenu->DrawMenu();
	}
}


void menuBase::DrawMenu(){

	system("cls");

	//Draw title text...
	SetConsoleTextAttribute(handle, titleTextTheme);
	cout<<titleText<<endl;
	SetConsoleTextAttribute(handle, normalTextTheme);
	cout<<cutline<<endl;

	//Output before menu..
	beginOutPut();

	//Draw options...
	for(int i = 0; i < numOfStatus; i++){
		if(i == highLightedIndex){
			SetConsoleTextAttribute(handle,highLightedTextTheme);
			cout<<i+1<<". "<<options[i]<<endl;
			SetConsoleTextAttribute(handle,normalTextTheme);
		}else{
			cout<<i+1<<". "<<options[i]<<endl;
		}
	}

	//Draw helping info...
	if(numOfStatus!=0){
		std::cout<<cutline<<std::endl;
		std::cout<<infos[highLightedIndex]<<std::endl;
	}

	//Out put after Draw...
	endOutPut();
}