Лаба 1-6 Системное программирование для ОС Windows [Вариант отсутствует, общий] / Лаба 4 / osisp_laba4 / ButtonHandlers

#include "stdafx.h"
#include "ButtonHandlers.h"
#include "LoadDatabase.h"
#include <Windowsx.h>


extern HWND				g_hListView, g_hMainWindow;
extern const char		*g_DatabasePtr;
extern int				g_cRecordsInBase;
extern HWND				g_hInputBox[8];


extern OPENDATABASEROUTINE		openDatabaseRoutine;
extern CLOSEDATABASEROUTINE		closeDatabaseRoutine;
extern SEARCHINDATABASEROUTINE	searchInDatabaseRoutine;
extern FILLDATABASERECORD		fillDatabaseRoutine;


void LoadDB(void)
{
	TCHAR szFile[MAX_PATH] = TEXT("\0");

	if (GetFilename(szFile)) {
		if (g_DatabasePtr) {
			closeDatabaseRoutine();
			g_DatabasePtr = NULL;
		}
		if (!(g_DatabasePtr = openDatabaseRoutine(szFile, &g_cRecordsInBase))) {
			MessageBox(
				g_hMainWindow,
				TEXT("Cannot Load DB!"),
				NULL, MB_OK);
		}
		if (g_DatabasePtr) {
			TCHAR buff[100];
			_stprintf_p(buff, sizeof(buff), TEXT("Number of Elements: %d"), g_cRecordsInBase);
			MessageBox(g_hMainWindow, buff, TEXT("DataBase downloaded Successfully!"), MB_OK);
		}
	}
}
void ShowDB(void)
{
PHONE_DB_RECORD recTemplate;
	
	if (g_DatabasePtr == NULL) {
		MessageBox(g_hMainWindow, TEXT("Error: First you must download a DB"), NULL, MB_OK);
		return;
	}

	GetWindowTextA(g_hInputBox[0], recTemplate.phone, sizeof(recTemplate.phone));
	GetWindowTextA(g_hInputBox[1], recTemplate.lastname, sizeof(recTemplate.lastname));
	GetWindowTextA(g_hInputBox[2], recTemplate.name, sizeof(recTemplate.name));
	GetWindowTextA(g_hInputBox[3], recTemplate.patronym, sizeof(recTemplate.patronym));

	GetWindowTextA(g_hInputBox[4], recTemplate.street, sizeof(recTemplate.street));
	GetWindowTextA(g_hInputBox[5], recTemplate.house, sizeof(recTemplate.house));
	GetWindowTextA(g_hInputBox[6], recTemplate.housing, sizeof(recTemplate.housing));
	GetWindowTextA(g_hInputBox[7], recTemplate.apartment, sizeof(recTemplate.apartment));

	int countOfNotEmtyFields = 0;

#define CHECK_IF_FIELD_NOT_EMPTY(field_name)\
	if (recTemplate.field_name[0] != '\0') countOfNotEmtyFields++;
	
	CHECK_IF_FIELD_NOT_EMPTY(phone);
	CHECK_IF_FIELD_NOT_EMPTY(lastname);
	CHECK_IF_FIELD_NOT_EMPTY(name);
	CHECK_IF_FIELD_NOT_EMPTY(street);

	CHECK_IF_FIELD_NOT_EMPTY(patronym);
	CHECK_IF_FIELD_NOT_EMPTY(house);
	CHECK_IF_FIELD_NOT_EMPTY(housing);
	CHECK_IF_FIELD_NOT_EMPTY(apartment);
#undef CHECK_IF_FIELD_NOT_EMPTY
	
	int foundItems = 0;
	PHONE_DB_RECORD foundRec;
	ListView_DeleteAllItems(g_hListView);
	searchInDatabaseRoutine(NULL, NULL, 0);		
		while (searchInDatabaseRoutine(&foundRec, &recTemplate, 0))
		{
			if (AddItemToListViewA(g_hListView, foundRec.phone, 0, 0)
			|| AddItemToListViewA(g_hListView, foundRec.lastname, 0, 1)
			|| AddItemToListViewA(g_hListView, foundRec.name, 0, 2)
			|| AddItemToListViewA(g_hListView, foundRec.patronym, 0, 3)
			|| AddItemToListViewA(g_hListView, foundRec.street, 0, 4)
			|| AddItemToListViewA(g_hListView, foundRec.house, 0, 5)
			|| AddItemToListViewA(g_hListView, foundRec.housing, 0, 6)
			|| AddItemToListViewA(g_hListView, foundRec.apartment, 0, 7))
			{
				DWORD systemLocale = MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL);
				HLOCAL hlocal = NULL; 
				
				FormatMessage(
					 FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
					 FORMAT_MESSAGE_ALLOCATE_BUFFER, 
					 NULL, GetLastError(), systemLocale, 
					 (PTSTR) &hlocal, 0, NULL);
				MessageBox(g_hMainWindow,
					TEXT("Ошибка вывода! Возможно база повреждена! Поиск остановлен"), 
					NULL, 
					MB_OK);

				MessageBox(0, (TCHAR*)hlocal, NULL, MB_OK);
				LocalFree(hlocal);
				break;
			}

			foundItems++;		
		}
	 
}

void SearchDB(void)
{
	PHONE_DB_RECORD recTemplate;
	
	if (g_DatabasePtr == NULL) {
		MessageBox(g_hMainWindow, TEXT("Error: First you must download a DB"), NULL, MB_OK);
		return;
	}

	GetWindowTextA(g_hInputBox[0], recTemplate.phone, sizeof(recTemplate.phone));
	GetWindowTextA(g_hInputBox[1], recTemplate.lastname, sizeof(recTemplate.lastname));
	GetWindowTextA(g_hInputBox[2], recTemplate.name, sizeof(recTemplate.name));
	GetWindowTextA(g_hInputBox[3], recTemplate.patronym, sizeof(recTemplate.patronym));

	GetWindowTextA(g_hInputBox[4], recTemplate.street, sizeof(recTemplate.street));
	GetWindowTextA(g_hInputBox[5], recTemplate.house, sizeof(recTemplate.house));
	GetWindowTextA(g_hInputBox[6], recTemplate.housing, sizeof(recTemplate.housing));
	GetWindowTextA(g_hInputBox[7], recTemplate.apartment, sizeof(recTemplate.apartment));
	FILE *f=fopen("log.txt","a");
	fprintf (f, "\n%s %s %s %s %s %s %s %s", recTemplate.phone, recTemplate.lastname, recTemplate.name, recTemplate.patronym, recTemplate.street, recTemplate.house, recTemplate.housing, recTemplate.apartment);

	fclose(f);

	int countOfNotEmtyFields = 0;

#define CHECK_IF_FIELD_NOT_EMPTY(field_name)\
	if (recTemplate.field_name[0] != '\0') countOfNotEmtyFields++;
	
	CHECK_IF_FIELD_NOT_EMPTY(phone);
	CHECK_IF_FIELD_NOT_EMPTY(lastname);
	CHECK_IF_FIELD_NOT_EMPTY(name);
	CHECK_IF_FIELD_NOT_EMPTY(street);

	CHECK_IF_FIELD_NOT_EMPTY(patronym);
	CHECK_IF_FIELD_NOT_EMPTY(house);
	CHECK_IF_FIELD_NOT_EMPTY(housing);
	CHECK_IF_FIELD_NOT_EMPTY(apartment);
#undef CHECK_IF_FIELD_NOT_EMPTY
	

	ListView_DeleteAllItems(g_hListView);
	searchInDatabaseRoutine(NULL, NULL, 0);
	if (countOfNotEmtyFields > 0) {
		int foundItems = 0;
		PHONE_DB_RECORD foundRec;
		while (searchInDatabaseRoutine(&foundRec, &recTemplate, countOfNotEmtyFields))
		{
			if (AddItemToListViewA(g_hListView, foundRec.phone, 0, 0)
			|| AddItemToListViewA(g_hListView, foundRec.lastname, 0, 1)
			|| AddItemToListViewA(g_hListView, foundRec.name, 0, 2)
			|| AddItemToListViewA(g_hListView, foundRec.patronym, 0, 3)
			|| AddItemToListViewA(g_hListView, foundRec.street, 0, 4)
			|| AddItemToListViewA(g_hListView, foundRec.house, 0, 5)
			|| AddItemToListViewA(g_hListView, foundRec.housing, 0, 6)
			|| AddItemToListViewA(g_hListView, foundRec.apartment, 0, 7))
			{
				DWORD systemLocale = MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL);
				HLOCAL hlocal = NULL; 
				
				FormatMessage(
					 FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
					 FORMAT_MESSAGE_ALLOCATE_BUFFER, 
					 NULL, GetLastError(), systemLocale, 
					 (PTSTR) &hlocal, 0, NULL);
				MessageBox(g_hMainWindow,
					TEXT("Ошибка вывода! Возможно база повреждена! Поиск остановлен"), 
					NULL, 
					MB_OK);

				MessageBox(0, (TCHAR*)hlocal, NULL, MB_OK);
				LocalFree(hlocal);
				break;
			}

			foundItems++;
			if (foundItems > 30000) {
				MessageBox(g_hMainWindow, 
					TEXT("First 30000 records"), 
					TEXT("Warning!"), 
					MB_OK);
				break;
			}
		}
	} else {
		MessageBox(g_hMainWindow, TEXT("Enter data to search!"), NULL, MB_OK);
	}
}