Interface.cpp

#include "Interface.h"

using namespace std;

void welcome(void)
{
	cout << "Welcome to use etnAtker's telephone directory!\nInitializing..." << endl;
}

TelDir* init(void)
{
	cout << "Loading save file..." << endl;
	fstream sav("data.sav", ios::in);
	TelDir *dir;
	if (sav) {
		dir = new TelDir(sav);
		cout << "Success." << endl;
	} else {
		cout << "No save file." << endl;
		dir = new TelDir();
	}
	system("pause");
	return dir;
}

void mainLoop(TelDir *dir)
{
	menu();
	readChoise(dir);
}

void menu(void)
{
	system("cls");
	cout << "**************MENU**************" << endl;
	cout << "1. Add an entry to the directory." << endl;
	cout << "2. Show all entries." << endl;
	cout << "3. Search entries by name." << endl;
	cout << "4. Delete entries by name." << endl;
	cout << "5. Modify entries by name." << endl;
	cout << "6. Search entries intelligently(by the first character)." << endl;
	cout << "0. Save & exit.\n" << endl;

	cout << "Your choise:" << endl;
}

void readChoise(TelDir *dir)
{
	int op = getNumber(0, 6);
	switch (op) {
	case 0:
		quitAndSave(dir);
	case 1:
		addNewEntry(dir);
		return;
	case 2:
		dir->showTelDir();
		system("pause");
		return;
	case 3:
		showEntryByName(dir);
		return;
	case 4:
		delEntryByName(dir);
		return;
	case 5:
		modifyEntryByName(dir);
		return;
	case 6:
		showEntryByFirstChar(dir);
		return;
	}
}

void addNewEntry(TelDir *dir)
{
	system("cls");
	string name, telNumber;
	cout << "Name:";
	inputLineFromCin(name);
	checkName(name);

	cout << "\nTelephone number:";
	inputLineFromCin(telNumber);
	checkName(telNumber);

	if (!dir->addNewEntry(name, telNumber)) {
		cout << "Failed to allocate memery." << endl;
	} else {
		cout << "Success" << endl;
	}
	system("pause");
}

void showEntryByName(TelDir *dir)
{
	string name;
	cout << "Name:";
	inputLineFromCin(name);
	dir->showEntryByName(name);
	system("pause");
}

void delEntryByName(TelDir *dir)
{
	string name;
	cout << "Name:";
	inputLineFromCin(name);
	dir->delEntryByName(name);
	system("pause");
}

void modifyEntryByName(TelDir *dir)
{
	string name;
	cout << "Name:";
	inputLineFromCin(name);
	dir->modifyEntryByName(name);
	system("pause");
}

void showEntryByFirstChar(TelDir *dir)
{
	string name;
	cout << "First character(the first character will be taken if you input more than one):";
	inputLineFromCin(name);
	dir->showEntryByName(name[0]);
	system("pause");
}

void quitAndSave(TelDir *dir)
{
	fstream sav("data.sav", ios::out);
	if (sav) {
		dir->save(sav);
		delete dir;
		exit(0);
	} else {
		cout << "Fail to open the save file. Program will quit.";
		if (confirm()) {
			delete dir;
			exit(0);
		}
	}
}