#define _CRT_SECURE_NO_WARNINGS
#undef UNICODE
#include "resource.h"
#include <cstring>
#include <windows.h>
#include <iostream>
extern "C" int __fastcall arrays(int*, int);

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
//====================================================================
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    HWND hMainWnd;
    static char szClassName[] = "MyClass";
    MSG msg;
    WNDCLASSEX wc;
    wc.cbSize = sizeof(wc);
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
    wc.lpszMenuName = MAKEINTRESOURCE(IDR_MENU1);
    wc.lpszClassName = szClassName;
    wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

    RegisterClassEx(&wc);

    hMainWnd = CreateWindow(
        szClassName, "Laba5", WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, 0, CW_USEDEFAULT, 0,
        (HWND)NULL, (HMENU)NULL,
        (HINSTANCE)hInstance, NULL
        );

    if (!hMainWnd) {
        MessageBox(NULL, "Cannot create main window", "Error", MB_OK);
        return 0;
    }

    ShowWindow(hMainWnd, nCmdShow);
    UpdateWindow(hMainWnd);

    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}


/////////////////////////////////////////
BOOL CALLBACK DlgProc(HWND, UINT, WPARAM, LPARAM);
int N;
int a[100];
int result;
BOOL work;
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{

    HDC hdc;
    static HINSTANCE hInst;
    PAINTSTRUCT ps;
    static int sx, sy;
    static char text1[200];
    switch (uMsg)
    {
    case WM_SIZE:
        sx = LOWORD(lParam);
        sy = HIWORD(lParam);
        break;
    case WM_COMMAND:
        switch (LOWORD(wParam))
        {
        case ID_FILE_SETTINGS:
            DialogBox(hInst, MAKEINTRESOURCE(IDD_DIALOG1), hWnd, DlgProc);
            break;
        }
        InvalidateRect(hWnd, NULL, TRUE);
        break;

    case WM_PAINT:
            hdc = BeginPaint(hWnd, &ps);
            if (work)
            {
                result = arrays(a, N);
                _itoa(result,text1,10);
                TextOut(hdc, sx / 3, sy / 2, "Элемент с наименьшей суммой цифр", 32);
                TextOut(hdc, sx / 2+60, sy / 2, text1, strlen(text1));
            }
            else
            {
                TextOut(hdc, sx / 3, sy / 2, "Используйте меню для ввода данных", 33);
            }
            EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return (DefWindowProc(hWnd, uMsg, wParam, lParam));
    }
    return 0;
}
////////////////////////////////////////////////////////
BOOL CALLBACK DlgProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    static int n;
    static int i = 0;
    static char *pch;
    static char  str[100];
    switch (uMsg)
    {
    case WM_COMMAND:
        switch (LOWORD(wParam))
        {
        case IDOK:
            N = n;
            i = 0;
            pch = strtok(str, " "); // во втором параметре указаны разделитель (пробел)
            while (pch != NULL)                         // пока есть лексемы
            {
                a[i++] = atoi(pch);
                pch = strtok(NULL, " ");
            }
            work = TRUE;
            EndDialog(hwnd, LOWORD(wParam));
            return TRUE;
            break;
        case IDCANCEL:
            work = FALSE;
            EndDialog(hwnd, LOWORD(wParam));
            return TRUE;
        }
        if (HIWORD(wParam) == EN_CHANGE)
        {
            switch (LOWORD(wParam))
            {
            case IDC_EDIT2:
                n = GetDlgItemInt(hwnd, IDC_EDIT2, NULL, FALSE);
                break;
            case IDC_EDIT1:
                GetDlgItemText(hwnd, IDC_EDIT1, str, 100);
                break;
            }
        }
        break;
    case WM_CLOSE:
        work = FALSE;
        EndDialog(hwnd, 0);
        return FALSE;
        break;
    }
    return FALSE;
}