// Project:				CIS023_F2018_HW12 Roshmund Romero
// Module:				CIS023_F2018_HW12 Roshmund Romero.cpp
// Author:				Roshmund Romero
// Date:				September 22, 2018
// Purpose:				Load and use data in an array of objects.
//						Use a virtual function.
//						Review menu operation.
//

#include "stdafx.h"
#include "CIS023_F2018_HW12 Roshmund Romero.h"

#define MAX_LOADSTRING 100
#define SIZE_ARRAY 9							// size of CarList Array

// Global Variables:
HINSTANCE hInst;                                // current instance
WCHAR szTitle[MAX_LOADSTRING];                  // The title bar text
WCHAR szWindowClass[MAX_LOADSTRING];            // the main window class name

HWND hWnd_ListBox;								// list box controls
string CarList[9][4];						// size of NumberList Array]

// Forward declarations of functions included in this code module:
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);

bool LoadFile();								// load text file into array
void LoadListbox();								// load listbox from array

int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
                     _In_opt_ HINSTANCE hPrevInstance,
                     _In_ LPWSTR    lpCmdLine,
                     _In_ int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    // TODO: Place code here.

    // Initialize global strings
    LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadStringW(hInstance, IDC_CIS023_F2018_HW12ROSHMUNDROMERO, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_CIS023_F2018_HW12ROSHMUNDROMERO));

    MSG msg;

    // Main message loop:
    while (GetMessage(&msg, nullptr, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    return (int) msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEXW wcex;

    wcex.cbSize = sizeof(WNDCLASSEX);

    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_CIS023_F2018_HW12ROSHMUNDROMERO));
    wcex.hCursor        = LoadCursor(nullptr, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+0);
    wcex.lpszMenuName   = MAKEINTRESOURCEW(IDC_CIS023_F2018_HW12ROSHMUNDROMERO);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

    return RegisterClassExW(&wcex);
}

//
//   FUNCTION: InitInstance(HINSTANCE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   hInst = hInstance; // Store instance handle in our global variable

   HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
	   CW_USEDEFAULT, 0, 600, 300, nullptr, nullptr, hInstance, nullptr);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND  - process the application menu
//  WM_PAINT    - Paint the main window
//  WM_DESTROY  - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_COMMAND:
        {
            int wmId = LOWORD(wParam);
            // Parse the menu selections:
            switch (wmId)
            {
			case ID_FILE_LOAD:
			{
				LoadFile();
				//LoadListbox();

				TCHAR szOutput[100];					// output buffer
				string strOutput;
				string strStore;
				size_t pReturnValue;						// return code for mbstowcs_s


				strOutput =
					CarList[0][0];					// largest int found in array (&)




				mbstowcs_s(								// convert string to TCHAR
					&pReturnValue,						// return value
					szOutput,							// outputo TCHAR
					100,								// size of TCHAR
					strOutput.c_str(),					// source string
					100);								// max chars to conver


				SendMessage(							// send a message to a window
					hWnd_ListBox,						// handle of window
					LB_ADDSTRING,						// messgae id
					NULL,								// WPARAM, not used
					(LPARAM)szOutput);					// THCAR to add to listbox						// LPARAM, not used

			}
			break;
            case IDM_ABOUT:
                DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
                break;
            case IDM_EXIT:
                DestroyWindow(hWnd);
                break;
            default:
                return DefWindowProc(hWnd, message, wParam, lParam);
            }
        }
        break;
    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = BeginPaint(hWnd, &ps);
            // TODO: Add any drawing code that uses hdc here...
            EndPaint(hWnd, &ps);
        }
        break;

	case WM_CREATE:
	{
		// create list box
		hWnd_ListBox = CreateWindow(
			TEXT("LISTBOX"),								// type of object
			TEXT(""),										// starts blank (filled later)
			WS_VISIBLE | WS_CHILD |							// attributes
			WS_VSCROLL | WS_BORDER |
			LBS_SORT,										// sorted list box
			20, 50, 545, 190,								// location and size
			hWnd, NULL, NULL, NULL);						// parent window, the rest are not used here

															// set listbox font to fixed width

		HFONT hFont = (HFONT)GetStockObject(OEM_FIXED_FONT);
		SendMessage(hWnd_ListBox, WM_SETFONT, WPARAM(hFont), NULL);

		// labels
		CreateWindow(TEXT("STATIC"),
			TEXT("Vehicle Name"),
			WS_VISIBLE | WS_CHILD,
			20, 20, 800, 30, hWnd, NULL, NULL, NULL);

		CreateWindow(TEXT("STATIC"),
			TEXT("Engine Type"),
			WS_VISIBLE | WS_CHILD,
			215, 20, 800, 30, hWnd, NULL, NULL, NULL);

		CreateWindow(TEXT("STATIC"),
			TEXT("Style"),
			WS_VISIBLE | WS_CHILD,
			310, 20, 60, 30, hWnd, NULL, NULL, NULL);

		CreateWindow(TEXT("STATIC"),
			TEXT("Occupants"),
			WS_VISIBLE | WS_CHILD,
			415, 20, 70, 30, hWnd, NULL, NULL, NULL);

		CreateWindow(TEXT("STATIC"),
			TEXT("Tax"),
			WS_VISIBLE | WS_CHILD,
			535, 20, 50, 30, hWnd, NULL, NULL, NULL);
	}
	break;

    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    UNREFERENCED_PARAMETER(lParam);
    switch (message)
    {
    case WM_INITDIALOG:
        return (INT_PTR)TRUE;

    case WM_COMMAND:
        if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
        {
            EndDialog(hDlg, LOWORD(wParam));
            return (INT_PTR)TRUE;
        }
        break;
    }
    return (INT_PTR)FALSE;
}

bool LoadFile()
{
	ifstream inFile;							// file handle
	string strFilespec =						// file name
		"CIS023_F2018_HW12_Data.txt";
	TCHAR szBuffer[100];						// array integer converted to TCHAR
	string strName;
	string strEngine;
	string strStyle;
	string strOccupants;
	size_t pReturnValue;						// return code for mbstowcs_s
	TCHAR szOutput[100];						// output to list box

	inFile.open(strFilespec);					// open the file

	if (inFile.is_open())						// did it open
	{
		// read file into array
		for (int i = 0; i < 9; i++)	// read SIZE_ARRAY number of lines from file
		{
			getline(inFile, strName, ',');		// read a line from the array
			getline(inFile,  strEngine, ',');		// read a line from the array
			getline(inFile,  strStyle, ',');		// read a line from the array
			getline(inFile,  strOccupants, '\n');		// read a line from the array

			int j = 0;
			if ( j < 4)
			{


				CarList[i][j] =						// copy line from file into array
					strName.c_str();				// convert string object to integer

				j++;

				CarList[i][j] +=						// copy line from file into array
					strEngine.c_str();;				// convert string object to integer

				j++;

				CarList[i][j] +=						// copy line from file into array
					strStyle.c_str();;					// convert string object to integer

				j++;

				CarList[i][j] +=						// copy line from file into array
					strOccupants.c_str();				// convert string object to integer

				j = 0;
			}
		}
		inFile.close();							// close the file
	}
	else
		return false;							// file did not open

	for (int i = 0; i < SIZE_ARRAY; i++)		// load array into
	{

		mbstowcs_s(
			&pReturnValue,
			szOutput,
			100,
			strName.c_str(),
			100);								// max chars to conver

		SendMessage(							// send a message to a window
			hWnd_ListBox,						// handle of window
			LB_ADDSTRING,						// messgae id
			NULL,								// WPARAM, not used
			(LPARAM)szBuffer);					// THCAR to add to listbox
	}

	return true;								// file okay
}