#include <windows.h>
#include <stdio.h>
#include "stopWatch.h"
#include "stopWatchClock.h"

stopWatch clockObject;

const int threadTimer = 1; //The time object thing
bool timerActive = false;

void displayTime (HWND hwnd);
BOOL CALLBACK digTimerEventListener (HWND hwnd, UINT event, WPARAM object, LPARAM lParam);

void displayTime (HWND hwnd) //Displays the time in H:i:s format
{
	
	char answer[15];
	sprintf(answer, "%02u:%02u:%02u", clockObject.getHour(), clockObject.getMin(), clockObject.getSec());
	SetDlgItemText(hwnd, lblTime, answer);
	
}

BOOL CALLBACK digTimerEventListener (HWND hwnd, UINT event, WPARAM object, LPARAM lParam)
{

	if (event == WM_INITDIALOG)
	{
		displayTime(hwnd);		
	}
	else if (event == WM_TIMER) //Timer pulsed (ever second)
	{
		//Increment by a second and then display the new time
		clockObject.incSec();
		displayTime(hwnd);
		
	}
	else if (event == WM_COMMAND)
	{
		
		int objectID = LOWORD(object);	
		
		if (objectID == cmdTimer)
		{
			
			if (!timerActive) //Start timer
			{
			
				int status = SetTimer(hwnd, threadTimer, 1000, NULL);
				
				if (status == 0)
				{
					MessageBox(hwnd, "There was an error when trying to start the timer", "Thread error", MB_OK | MB_ICONEXCLAMATION);
				}
				else
				{
					//Change the caption text of the button
					SendMessage(GetDlgItem(hwnd, cmdTimer), WM_SETTEXT, 0, (LPARAM)(LPCTSTR)"&Stop");
					timerActive = true;
				}
				
			}
			else //Stop timer
			{
				
				KillTimer(hwnd, threadTimer); //Stops the timer
				
				SendMessage(GetDlgItem(hwnd, cmdTimer), WM_SETTEXT, 0, (LPARAM)(LPCTSTR)"&Start");
				timerActive = false;
				
				if (clockObject.isOverflowSet()) //Warns the user if the stop watch hour went over 23
				{
					MessageBox(hwnd, "The stopWatchClock was active for more then a day, but the amount of days is not shown", "Overflow", MB_OK | MB_ICONEXCLAMATION);
				}
				
			}
			
		}
		else if (objectID == cmdReset) //Reset the clock
		{
			
			clockObject.reset();
			displayTime(hwnd);			
			
		}
		else if (objectID == cmdClose)
		{
			EndDialog(hwnd, objectID);
		}		
		
	}
	else if (event == WM_CLOSE)
	{	
		EndDialog(hwnd, object);
	}
	else if (event == WM_DESTROY)
	{
		
		if (timerActive) //Make sure the timer object is destroyed
		{
			KillTimer(hwnd, threadTimer);
		}
		
	}
	else
	{
		return false;
	}
	
	return true;

}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR args, int nCmdShow)
{
	
	stopWatch clockObject();
	return DialogBox(hInstance, MAKEINTRESOURCE(digTimer), NULL, digTimerEventListener);
	
}