// copyright 1999 Brian J. Reithel, Ph.D.

#include <fstream.h>
#include <iostream.h>
#include <string.h>
#include <iomanip.h>
#define MAXBUILDINGS 20

class CBuilding {
	char BuildingName[151];
	int  SquareFeet;
public:
	void info_in(void);
	void info_out(void);
	void line_out(void);
	char* getname(void);
	int   getsquarefeet(void);
	void  setname(char*);
	void  setsquarefeet(int);
     	  CBuilding(void);
};

CBuilding::CBuilding(){
	strcpy(BuildingName,"< empty >");
	SquareFeet=0;
}

void CBuilding::setname(char* tmpname){
	strcpy(BuildingName,tmpname);
}

void CBuilding::setsquarefeet(int tmpsqfeet){
	SquareFeet=tmpsqfeet;
}

char* CBuilding::getname(){
	return(BuildingName);
}

int CBuilding::getsquarefeet(){
	return(SquareFeet);
}

void CBuilding::line_out(){
	cout << setiosflags(ios::left) 
		 << setw(30) << BuildingName 
		 << "  ";
	cout << setiosflags(ios::right) 
		 << setw(10) << SquareFeet 
		 << endl;
}

void CBuilding::info_out(){
	cout << "Building name: " << BuildingName << endl;
	cout << "Square Feet:   " << SquareFeet   << endl;
	cout << endl;
}


void CBuilding::info_in(){
	char nl;
	
	cout << "Enter building name: ";
	cin.get(BuildingName,150,'\n');
	cin.get(nl);
	
	cout << "Enter square feet: (whole numbers only) ";
	cin >> SquareFeet;
	cin.get(nl);
}




int main() {

	CBuilding buildings[MAXBUILDINGS];

	int choice=0;
	int b;
	char nl;
	char tempname[151];
	int tempsquarefeet;
	int bldgnum;
	fstream buildingfile;
	int cls;

	while(choice<9){
		for(cls=0;cls<26;cls++ ) cout << endl;
		cout << endl << endl << endl;
		cout << "1.  Enter Building Information." << endl;
		cout << "2.  Display Building Information" << endl;
		cout << "3.  Save Building Database to Disk." << endl;
		cout << "4.  Retrive Building Database from Disk." << endl;
		cout << "5.  Display Line by Line Building Report." << endl;
		cout << "6.  Enter information for a particular building." << endl;
		cout << "9.  Exit Building Manager." << endl;
		cout << "Please enter your choice (1-9): ";
		cin	>> choice;
		cin.get(nl);
		cout << endl << endl;
		switch(choice) {
		case 1:
			for(b=0;b<MAXBUILDINGS;b++) 
				buildings[b].info_in();
			break;
		case 2:
			for(b=0;b<MAXBUILDINGS;b++)
				buildings[b].info_out();
			break;
		case 3:
			buildingfile.open("buildings.dat",ios::out);
			for(b=0;b<MAXBUILDINGS;b++){
				buildingfile << buildings[b].getname() << endl;
				buildingfile << buildings[b].getsquarefeet() << endl;
			}
			buildingfile.close();
			break;
		case 4:
			buildingfile.open("buildings.dat",ios::in);
			for(b=0;b<MAXBUILDINGS;b++){
				buildingfile.get(tempname,150,'\n');
				buildingfile.get(nl);
				buildings[b].setname(tempname);
				buildingfile >> tempsquarefeet;
				buildingfile.get(nl);
				buildings[b].setsquarefeet(tempsquarefeet);
			}
			buildingfile.close();
			cout << "File successfully loaded from disk." << endl;
			cout << "Press <Enter> to continue..." << endl;
			cin.get(nl);
			break;
		case 5:
			for(b=0;b<MAXBUILDINGS;b++) {
				cout << setiosflags(ios::left) << setw(3) << b+1 << "  ";
				buildings[b].line_out();
			}
			cout << endl;
			cout << "Press <Enter> to continue..." << endl;
			cin.get(nl);
			break;
		case 6:
			cout << "Which building? (1-20):  ";
			cin >> bldgnum;
			cin.get(nl);
			buildings[bldgnum-1].info_in();
			break;
		}
	}

	return(0);
}