#include <iostream>
#include <string>
#include <vector>
#include <fstream>


using namespace std;

class card {
private:
	string ID;
	string name;
	string lastname;
	string age;
	string university;
public:
	card(string _ID, string _name, string _lastname, string _age, string _university) {
		ID = _ID;
		name = _name;
		lastname = _lastname;
		age = _age;
		university = _university;
	}
#pragma region getters
	string getID() {
		return ID;
	}
	string getName() {
		return name;
	}
	string getLastname() {
		return lastname;
	}
	string getAge() {
		return age;
	}
	string getUniversity() {
		return university;
	}
#pragma endregion
};

void menu(vector<card> sl);

void studentsBrowser(vector<card> sl);

void lookForStudentWithID(vector<card> sl);

vector<card> getAllUsersFromDB();

void addDeclaredUsersToDB(vector<card> instance);

void addUsersToDB(vector<card>ls);

int main() {
	//card stud1("01001089009", "Tornike", "Qurdadze", "19", "Tbilisi State University");
	//card stud2("65012305914", "Gio", "Bitsadze", "20", "Tbilisi State University");
	//card stud3("93851399302", "Mate", "Gvaramadze", "21", "Tbilisi Free University");

	vector<card> sl = getAllUsersFromDB();

	//sl.push_back(stud1);
	//sl.push_back(stud2);
	//sl.push_back(stud3);
	//addDeclaredUsersToDB(sl);
	menu(sl);

	cin.get();
	cin.get();
}

void menu(vector<card> sl) {
	system("cls");
	cout << "1) Check all students" << endl;
	cout << "2) Find student with specific ID" << endl;
	cout << "3) Add a new user" << endl;
	cout << "4) Exit" << endl;
	int switcher = 0;
	cin >> switcher;
	switch (switcher)
	{
	case 1:
		studentsBrowser(sl);
		break;
	case 2:
		lookForStudentWithID(sl);
		break;
	case 3:
		addUsersToDB(sl);
		break;
	case 4:
		exit(1);
		break;
	default:
		exit(1);
		break;
	}
}

void studentsBrowser(vector<card> sl) {
	system("cls");
	for (auto item : sl)
	{
		cout << "ID: " << item.getID() << endl;
		cout << "Name: " << item.getName() << endl;
		cout << "Lastname: " << item.getLastname() << endl;
		cout << "Age: " << item.getAge() << endl;
		cout << "University: " << item.getUniversity() << endl;
		cout << endl;
		cout << "****************************************";
		cout << endl;
	}
}

void lookForStudentWithID(vector<card> sl)
{
	system("cls");
	cout << "Enter the ID of student you are looking for : ";
	string _ID;
	cin >> _ID;
	for (auto item : sl)
	{
		if (item.getID() == _ID)
		{
			cout << "ID: " << item.getID() << endl;
			cout << "Name: " << item.getName() << endl;
			cout << "Lastname: " << item.getLastname() << endl;
			cout << "Age: " << item.getAge() << endl;
			cout << "University: " << item.getUniversity() << endl;
			cout << endl;
			cout << endl;
		}
	}
}

vector<card> getAllUsersFromDB()
{
	vector<card> sl;
	string ID;
	string name;
	string lastname;
	string age;
	string university;

	ifstream db;
	db.open("AdditionalUsers.dat");

	string line;
	int amountOfUsers = 0;
	int lineNumber = 0;

	while (getline(db, line)) {
		if (lineNumber == 0) {
			ID = line;
		}
		else if (lineNumber == 1) {
			name = line;
		}
		else if (lineNumber == 2) {
			lastname = line;
		}
		else if (lineNumber == 3) {
			age = line;
		}
		else if (lineNumber == 4) {
			university = line;
			lineNumber = -1;
			card student(ID, name, lastname, age, university);
			sl.push_back(student);
		}
		lineNumber++;
	}
	db.close();
	return sl;
}

void addDeclaredUsersToDB(vector<card> instance) {
	ofstream dbFile;
	string ID;
	string name;
	string lastname;
	string age;
	string university;
	dbFile.open("AdditionalUsers.dat", ios::app);
	for (auto item : instance)
	{
		ID = item.getID();
		name = item.getName();
		lastname = item.getLastname();
		age = item.getAge();
		university = item.getUniversity();

		dbFile << ID << endl << name << endl << lastname << endl << age << endl << university;
	}
}

void addUsersToDB(vector<card> ls)
{
	system("cls");
#pragma region declarations
	string ID;
	string name;
	string lastname;
	string age;
	string university;
	cout << "Enter ID: ";
	cin >> ID;
	cout << endl << "Enter name: ";
	cin >> name;
	cout << endl << "Enter lastname: ";
	cin >> lastname;
	cout << endl << "Enter age: ";
	cin >> age;
	cout << endl << "Enter university: ";
	cin >> university;
	cout << endl;
#pragma endregion

	ofstream dbFile;
	dbFile.open("AdditionalUsers.dat", ios::app);
	dbFile << ID << endl << name << endl << lastname << endl << age << endl << university;
	cout << "User Successfully added to database." << endl;
	dbFile.close();
	ls = getAllUsersFromDB();
	menu(ls);
}