#include"iostream"
#include"cstring"

using namespace std;

const int size  = 100;
int studentSize, facultySize, adminSize, normalSize;

class aiub
{
	char *name;
	char *id;
public:
	aiub(){}
	aiub(char *,char *);
	aiub(const aiub &);

	void setName(char *);
	void setId(char *);

	char *getName()const
	{
		return name;
	}
	char *getId()const
	{
		return id;
	}
	char *createId(char ,char *);
};

class student:public aiub
{
	char *semester;
	char *department;
	char *admissionDate;
	float cgpa;
	int creditCompleted;
	int creditTaken;
public:
	student(){}
	student(char *, char *, char *, char *,char *, float, int, int);
	student(const student &);

	void setSemester(char *);
	void setDepartment(char *);
	void setAdmissionDate(char *);
	void setCgpa(float);
	void setCreditComplete(int);
	void setCreditTaken(int );

	char *getSemester()const
	{
		return semester;
	}
	char *getDepartment()const
	{
		return department;
	}
	float getCgpa()const
	{
		return cgpa;
	}
	int getCreditComplete()const
	{
		return creditCompleted;
	}
	int getCreditTaken()const
	{
		return creditTaken;
	}
	char *getAdmissionDate()const
	{
		return admissionDate;
	}

	void showAllStudent()const;
};

class staff:public aiub
{
	long salary;
	char *joinDate;

public:
	staff(){}
	staff(long, char *, char *, char *);
	staff(const staff &);

	void setSalary(long);
	void setJoinDate(char *);

	long getSalary()const
	{
		return salary;
	}
	char *getJoinDate()const
	{
		return joinDate;
	}
};

class admin:public staff
{
	char *section;

public:
	admin(){}
	admin(char *, char *,char *,char *, long);
	admin(const admin &);

	void setSection(char *);
	char *getSection()const
	{
		return section;
	}

	void showAllAdmin()const;
};

class faculty:public staff
{
	char *department;
	char *education;
public:
	faculty(){}
	faculty(char *,char *, char *, char *, char *, long);
	faculty(const faculty &);

	void setDepartment(char *);
	void setEducation(char *);
	char *getDepartment()const
	{
		return department;
	}
	char *getEducation()const
	{
		return education;
	}

	void showAllFaculty()const;
};

class normal:public staff
{
	char *jobType;
public:
	normal(){}
	normal(char *,char *, char *, char *, long);
	normal(const normal &);

	void setJobType(char *);
	char *getJobType()const
	{
		return jobType;
	}

	void showAllNormalStaff()const;
};

int menu(char c)
{
	int choice;
	if( c == 'L')
	{
		while(1){
	    cout <<"\n\n"; 
		cout <<"\n 1)Student Admission";
		cout <<"\n 2)Staff   joining";
		cout <<"\n 3)Change Student Info";
		cout <<"\n 4)Show All Student";
		cout <<"\n 5)Show All Administrator";
		cout <<"\n 6)Show All Faculty";
		cout <<"\n 7)Show All Mama...";
		cout <<"\n 8)Show All Information";
		cout <<"\n 9)Clear Screen.....";
		cout <<"\n 0)Exit from Program";

		cout <<"\n Enter u'r choice: ";
        cin >> choice;
		if(choice < 0 || choice > 9)
			cout<<"\nPlease Enter the Correct Number.";
		else
			break;
		}
	}
	else if( c == 'S')
	{
		while(1){
	    cout <<"\n\n"; 
		cout <<"\n\t 1)Admin Joining";
		cout <<"\n\t 2)Faculty Joining";
		cout <<"\n\t 3)Normal Staff Joining";
		cout <<"\n\t 4)Go back.";
		cout <<"\n\t 5)Exit";
		
		cout <<"\n\t Enter u'r choice: ";
        cin >> choice;
		if(choice < 1 || choice > 5)
			cout<<"\nPlease Enter the Correct Number.\n";
		else
			break;
		}
	}
	else
	{
		while(1){
	    cout <<"\n\n"; 
		cout <<"\n\t 1)Change Grade";
		cout <<"\n\t 2)Change Credit Which Completed";
		cout <<"\n\t 2)Change Credit Which Taken";
		cout <<"\n\t 4)Go back";
		cout <<"\n\t 5)Exit";

		cout <<"\n\t Enter u'r choice: ";
        cin >> choice;
		if(choice < 1 || choice > 5)
			cout<<"\nPlease Enter the Correct Number.\n";
		else
			break;
		}
	}
	return choice;
}

aiub::aiub(char *nm,char *id)
{
	name = new char[strlen(nm)+1];
	strcpy(name, nm);

	this->id = new char[strlen(id)+1];
	strcpy(this->id, id);
}

aiub::aiub(const aiub &a)
{
	name = new char[strlen(a.name)+1];
	strcpy(name, a.name);

	id = new char[strlen(a.id)+1];
	strcpy(id, a.id);
}

void aiub::setName(char *nm)
{
	name = new char[strlen(nm)+1];
	strcpy(name, nm);
}

void aiub::setId(char *id)
{
	this->id = new char[strlen(id)+1];
	strcpy(this->id, id);
}

char *aiub::createId(char c,char *day)
{
	char *y, *id;
	int len, ii;
	long i = 0;

	id = new char[50];
	y = new char[10];

	cout<<"\nEnter Semester(1 for Spring, 2 for summer, 3 for Fall): ";
	cin>>ii;

	switch(c)
	{
		case 's':
			while(i<100)
				i = rand()%999;
			break;

		case 'a':
			while(i<10000)
				i = rand()%99999;
			break;

		case 'f':
			while(i<1000)
				i = rand()%9999;
			break;

		case 'n':
			while(i<100)
				i = rand()%999;
			break;
	}
	len = strlen(day);
	len -= 2;

	y[0] = day[len];
	y[1] = day[len+1];
	y[2] = '\0';

	strcpy(id,y);
	if(c == 's')
		strcat(id,"-03");
	else
		strcat(id,"-");

	strcat(id,itoa(i,y,20));
	strcat(id,"-");
	strcat(id,itoa(ii, y,20));
	
	cout<<"\nYour ID is "<<id;
	return id;
}

student::student(char *nm, char *id, char *dept, char *sems, char *ad, float cgpa, int cc, int ct):aiub(nm,id)
{
	semester = new char[strlen(sems)+1];
	strcpy(semester, sems);

	department = new char[strlen(dept)+1];
	strcpy(department, dept);

	admissionDate = new char[strlen(ad)+1];
	strcpy(admissionDate, ad);

	this->cgpa = cgpa;

	creditCompleted = cc;
	creditTaken = ct;
}

student::student(const student &s):aiub(s)
{
	semester = new char[strlen(s.semester)+1];
	strcpy(semester, s.semester);

	department = new char[strlen(s.department)+1];
	strcpy(department, s.department);

	admissionDate = new char[strlen(s.admissionDate)+1];
	strcpy(admissionDate, s.admissionDate);

	cgpa = s.cgpa;

	creditCompleted = s.creditCompleted;
	creditTaken = s.creditTaken;
}

void student::setSemester(char *sems)
{
	semester = new char[strlen(sems)+1];
	strcpy(semester, sems);
}

void student::setDepartment(char *dept)
{
	department = new char[strlen(dept)+1];
	strcpy(department, dept);
}

void student::setAdmissionDate(char *ad)
{
	admissionDate = new char[strlen(ad)+1];
	strcpy(admissionDate, ad);
}

void student::setCgpa(float cgpa)
{
	this->cgpa = cgpa;
}

void student::setCreditComplete(int cc)
{
	creditCompleted = cc;
}

void student::setCreditTaken(int ct)
{
	creditTaken = ct;
}

void student::showAllStudent()const
{
	cout<<"\n";
	cout<<"\n Student Name     : "<<getName();
	cout<<"\n Student Id       : "<<getId();
	cout<<"\n Date of Admission: "<<admissionDate;
	cout<<"\n Department       : "<<department;
	cout<<"\n Semester         : "<<semester;
	cout<<"\n Credit Completed : "<<creditCompleted;
	cout<<"\n Credit Taken     : "<<creditTaken;
	cout<<"\n Cgpa             : "<<cgpa;

}

staff::staff(long sal, char *jd, char *nm, char *id):aiub(nm,id)
{
	salary = sal;

	joinDate = new char[strlen(jd)+1];
	strcpy(joinDate, jd);
}

staff::staff(const staff &sf)
{
	salary = sf.salary;

	joinDate = new char[strlen(sf.joinDate)+1];
	strcpy(joinDate, sf.joinDate);
}

void staff::setSalary(long sal)
{
	salary = sal;
}

void staff::setJoinDate(char *jd)
{
	joinDate = new char[strlen(jd)+1];
	strcpy(joinDate, jd);
}

admin::admin(char *nm,char *id, char *sec, char *jd, long sal)
				:staff(sal, jd, nm, id)
{
	section = new char[strlen(sec)+1];
	strcpy(section, sec);
}

admin::admin(const admin &ad):staff(ad)
{
	section = new char[strlen(ad.section)+1];
	strcpy(section, ad.section);
}

void admin::setSection(char *sec)
{
	section = new char[strlen(sec)+1];
	strcpy(section, sec);
}

void admin::showAllAdmin()const
{
	cout<<"\n";
	cout<<"\n Name        : "<<getName();
	cout<<"\n Id          : "<<getId();
	cout<<"\n Joining Date: "<<getJoinDate();
	cout<<"\n Section     : "<<section;
	cout<<"\n Salary      : "<<getSalary();
}

faculty::faculty( char *nm, char *id, char *dept,char *edu, char *jd, long sal)
					:staff(sal, jd, nm, id)
{
	department = new char[strlen(dept)+1];
	strcpy(department, dept);
	
	education = new char[strlen(edu)+1];
	strcpy(education, edu);
}

faculty::faculty(const faculty &f):staff(f)
{
	department = new char[strlen(f.department)+1];
	strcpy(department,f.department);
	
	education = new char[strlen(f.education)+1];
	strcpy(education, f.education);
}
	
void faculty::setDepartment(char *dept)
{
	department = new char[strlen(dept)+1];
	strcpy(department, dept);
}

void faculty::setEducation(char *edu)
{
	education = new char[strlen(edu)+1];
	strcpy(education, edu);
}

void faculty::showAllFaculty()const
{
	cout<<"\n";
	cout<<"\n Name        : "<<getName();
	cout<<"\n Id          : "<<getId();
	cout<<"\n Joining Date: "<<getJoinDate();
	cout<<"\n Department  : "<<department;
	cout<<"\n Salary      : "<<getSalary();
}
	
normal::normal(char *nm, char *id, char *jt, char *jd, long sal)
				:staff(sal, jd, nm, id)
{
	jobType = new char[strlen(jt)+1];
	strcpy(jobType, jt);
}

normal::normal(const normal &n):staff(n)
{
	jobType = new char[strlen(n.jobType)+1];
	strcpy(jobType, n.jobType);
}

void normal::setJobType(char *jt)
{
	jobType = new char[strlen(jt)+1];
	strcpy(jobType, jt);
}

void normal::showAllNormalStaff()const
{
	cout<<"\n";
	cout<<"\n Name        : "<<getName();
	cout<<"\n Id          : "<<getId();
	cout<<"\n Joining Date: "<<getJoinDate();
	cout<<"\n Job Type    : "<<jobType;
	cout<<"\n Salary      : "<<getSalary();
}

void myCredit()
{
	cout<<"\n\t\t\t----------------------------";
	cout<<"\n\t\t\t|   AIUB DATABASE SYSTEM   |";
	cout<<"\n\t\t\t|                Done by   |";
	cout<<"\n\t\t\t| Muhammad Khabir Ud Dulon |";
	cout<<"\n\t\t\t----------------------------";
}

void initialValue(student st[],	admin ad[],	faculty fact[],normal n[])
{

	st[0] = student("Khabir", "03-03795-1", "COS", "Six","Jan,4,2003",(float)3.8, 65, 15);
	st[1] = student("Tanzim","03-03795-2", "COE", "Five","May,1,2003", (float)3.6, 60, 15);
	st[2] = student("Bappy","03-03752-1", "EEE", "Fourth","Jan,7,2003", (float)3.8, 65, 12);
	st[3] = student("Tania","03-03951-3", "BBA", "Seven", "Aug,11,2003",(float)3.8, 65, 12);
	studentSize = 4;

	
	ad[0] = admin("Zabir", "04-748095-1", "IT", "Jan,23,2003", 65000);
	ad[1] = admin("Aminul", "02-874556-1","Account", "Sep,1,2002",48000);
	ad[2] = admin("Faisal", "04-897945-1","IT", "Mar,13,2003",55000);
	adminSize = 3;

	
	fact[0] = faculty("Sazzad","01-2543-1","COS","Graduate","Feb,5,2001", 75000);
	fact[1] = faculty("Tanvir","01-4452-2","COS","Graduate","May,11,2001", 74000);
	fact[2] = faculty("Jashim","02-7854-3","MATH","Masters","Oct,10,2002", 85000);
	fact[3] = faculty("Fahim", "01-5741-2","ENGLISH","Ph.D","Jun,5,2001", 90000);
	fact[4] = faculty("Farzana","03-7546-1","PHYSICS","Graduate","Jan,14,2003", 60000);
	facultySize = 5;

	
	n[0] = normal("Abul", "01-142-1","Apr,16,2001", "Security",5000);
	n[1] = normal("Halim","02-741-2","Aug,29,2002", "Peon",4000);
	n[2] = normal("Kulsum","01-789-3","Dec,24,2001","Sweeper",4000);
	normalSize = 3;
}

void showAll(student st[],	admin ad[],	faculty fact[],normal n[])
{
	for (int k, j =0; j<4; j++)
	{
		for (int a =0; a<25; a++)
			cout<<"\n";
	
		if(j == 0)
		{
			k = studentSize;
			cout<<"***********************\n";
			cout<<"* STUDENT INFORMATION *\n";
			cout<<"***********************";
		}
		else if(j == 1)
		{
			k = adminSize;
			cout<<"\n*****************************";
			cout<<"\n* ADMINISTRATOR INFORMATION *";
			cout<<"\n*****************************";
		}
		else if(j == 2)
		{
			k = facultySize;
			cout<<"\n***********************";
			cout<<"\n* FACULTY INFORMATION *";
			cout<<"\n***********************";
		}
		else if(j == 3)
		{
			k = normalSize;
			cout<<"\n****************************";
			cout<<"\n* NORMAL STAFF INFORMATION *";
			cout<<"\n****************************";
		}
		for(int i = 0; i<k; i++)
		{
			if(j == 0)
				st[i].showAllStudent();
			else if(j == 1)
				ad[i].showAllAdmin();
			else if(j == 2)
				fact[i].showAllFaculty();
			else if(j == 3)
				n[i].showAllNormalStaff();
			if((i+1)%1==0)
			{
				cout<<"\n\nPress Enter to see more information.";
				getchar();
			}	
		}
	}
}

void main()
{
	int i,choice, cr ,login = 0;
	char *nm, *id, *jd, *dept, *edu;
	long sal; float gr;

	nm = new char[50];
	jd = new char[50];
	id = new char[50];
	edu = new char[25];
	dept = new char[25];

	student st[size];
	admin ad[size];
	faculty fact[size];
	normal n[size];

	initialValue(st,ad,fact,n);

	myCredit();
	while(1)
	{
		choice = menu('L');
		switch(choice)
		{
			case 0:
				exit(1);
			
			case 1:
				cout<<"\nEnter Student's Name (Multiple word are not allowed): ";
				cin>>nm;
				cout<<"\nEnter Admission Date(Jan,1,2004)NO SPACE: ";
				cin>>jd;
				cout<<"\nWhich Department do you want to choose to get admission: ";
				cin>>dept;
			
				id = st[studentSize].createId('s',jd);
				
				st[studentSize].setName(nm);
				st[studentSize].setId(id);
				st[studentSize].setSemester("First");
				st[studentSize].setAdmissionDate(jd);
				st[studentSize].setDepartment(dept);
				st[studentSize].setCgpa(0.0);
				st[studentSize].setCreditComplete(0);
				st[studentSize].setCreditTaken(12);
				studentSize++;
				break;
			
			case 2:
				choice = menu('S');
				switch(choice)
				{
					case 1:// admin joining
						cout<<"Enter your name: ";
						cin>>nm;
				
						cout<<"\nEnter Joining Date(Jan,1,2004)NO SPACE: ";
						cin>>jd;
						cout<<"\nWhich Section do you want to work: ";
						cin>>dept;
		
						id = ad[adminSize].createId('a',jd);
			
						ad[adminSize].setName(nm);
						ad[adminSize].setId(id);
						ad[adminSize].setJoinDate(jd);
						ad[adminSize].setSection(dept);
						do{
							sal = rand()%200;
						}while(sal<40);
						sal*=1000;
						ad[adminSize].setSalary(sal);
						adminSize++;
						break;
		
					case 2:// faculty joining
						cout<<"Enter your name: ";
						cin>>nm;
		
						cout<<"\nEnter Joining Date(Jan,1,2004)NO SPACE: ";
						cin>>jd;
						cout<<"\nWhich Department do you want to teach: ";
						cin>>dept;
						cout<<"\nEnter Your Education Type(Graduate/Post Graduate/ Ph.D): ";
						cin>>edu;
		
						id = fact[facultySize].createId('f',jd);
			
						fact[facultySize].setName(nm);
						fact[facultySize].setId(id);
						fact[facultySize].setJoinDate(jd);
						do{
							sal = rand()%100;
						}while(sal<20);
						sal*=1000;
						fact[facultySize].setSalary(sal);
						fact[facultySize].setEducation(edu);
						fact[facultySize].setDepartment(dept);	
						facultySize++;
						break;
		
					case 3: // normal staff joining
						cout<<"Enter your name: ";
						cin>>nm;
						cout<<"\nEnter Joining Date(Jan,1,2004)NO SPACE: ";
						cin>>jd;
						cout<<"\nEnter your Type of Job: ";
						cin>>dept;
		
						id = n[normalSize].createId('n',jd);
					
						n[normalSize].setName(nm);
						n[normalSize].setId(id);
						n[normalSize].setJoinDate(jd);
						do{
							sal = rand()%12;
						}while(sal<4);
						sal*=1000;
						n[normalSize].setSalary(sal);
						n[normalSize].setJobType(dept);	
						normalSize++;
						break;
					
					case 4:
						// Go to Main menu		
						break;
			
					case 5:
						exit(1);
				}
				break;

			case 3:
				if(!login)
				{
					cout<<"\nLogin Name: ";
					cin>>nm;
					cout<<"\nPASSWORD: ";
					cin>>id;
				}
				if((!strcmp(nm,"admin") && !strcmp(id,"dulon")) || login)
				{
					login = 1;
					choice = menu('N');
				}
				else
					choice = -1;

				switch(choice)
				{
					case 0:
						cout<<"\nYour Id is not found.";
						break;

					case 1:
						cout<<"\nEnter Student ID: ";
						cin>>id;
						for(i=0; i<studentSize; i++)
							if(!strcmp(st[i].getId(),id))
							{
								cout<<"\nEnter Grade to change: ";
								cin>>gr;
								st[i].setCgpa(gr);
								cout<<"\nDo you want to logOUT? if then enter '0'(zero) else '1'(one): ";
								cin>>login;
								break;
							}
							if(i==studentSize)//has been changed
								cout<<"\nId was not found";


						break;//break for switch
							
					case 2:
						cout<<"\nEnter Student ID: ";
						cin>>id;
						for(i=0; i<studentSize; i++)
							if(!strcmp(st[i].getId(),id))
							{
								cout<<"\nCredit Completed ?: ";
								cin>>cr;
								st[i].setCreditComplete(cr);
								cout<<"\nDo you want to logOUT? if then enter '0'(zero) else '1'(one): ";
								cin>>login;
								break;
							}
							if(i==studentSize)//has been changed
								cout<<"\nId was not found";

							break;
					case 3:
						cout<<"\nEnter Student ID: ";
						cin>>id;
						for(i=0; i<studentSize; i++)
							if(!strcmp(st[i].getId(),id))
							{
								cout<<"\nCredit Taken ?: ";
								cin>>cr;
								st[i].setCreditTaken(cr);
								cout<<"\nDo you want to logOUT? if then enter '0'(zero) else '1'(one): ";
								cin>>login;
								break;
							}
							if(i==studentSize)//has been changed
								cout<<"\nId was not found";

							break;			
					case 4:
						// Go to Main menu		
						cout<<"\nDo you want to logOUT? if then enter '0'(zero) else '1'(one): ";
						cin>>login;
						break;
		
					case 5:
						exit(1);
					default:
						cout<<"\nWrong user name or password";				
				}
				break;
		
			case 4: //show student
				cout<<"***********************\n";
				cout<<"* STUDENT INFORMATION *\n";
				cout<<"***********************";
				for(i = 0; i<studentSize; i++)
				{
					st[i].showAllStudent();
					if(i%1==0)
					{
						cout<<"\n\nPress Enter to see more information.";
						getchar();
					}	
				}
				break;
		
			case 5: //show admin
				cout<<"\n*****************************";
				cout<<"\n* ADMINISTRATOR INFORMATION *";
				cout<<"\n*****************************";
				for(i = 0; i<adminSize; i++)
				{
					ad[i].showAllAdmin();
					if(i%1==0)
					{
						cout<<"\n\nPress Enter to see more information.";
						getchar();
					}	
				}
				break;
		
			case 6: // show faculty
				cout<<"\n***********************";
				cout<<"\n* FACULTY INFORMATION *";
				cout<<"\n***********************";
				for(i = 0; i<facultySize; i++)
				{
					fact[i].showAllFaculty();
					if(i%1==0)
					{
						cout<<"\n\nPress Enter to see more information.";
						getchar();
					}	
				}
				break;
		
			case 7: // show mama
				cout<<"\n****************************";
				cout<<"\n* NORMAL STAFF INFORMATION *";
				cout<<"\n****************************";
				for(i = 0; i<normalSize; i++)
				{
					n[i].showAllNormalStaff();
					if(i%1==0)
					{
						cout<<"\n\nPress Enter to see more information.";
						getchar();
					}	
				}
				break;
		
			case 8: // show all
				showAll(st,ad,fact,n);
				break;

			case 9: //  Clear Screen
				for(i = 0; i<50; i++)
					cout<<"\n";
		}

	}
}