#include <iostream>
#include <fstream>
#include <stack>
#include <cstdlib>
using namespace std;

#include "Car.h"

int main(int arg, char **args){
	stack<Car*>lot;

	/* show different ways to use stack.
	lot.push(new Car("x"));
	Car *cp = new Car("y");
	lot.push(cp);

	// clean up
	while(!lot.empty()){
		cout << lot.top() << endl;
		cout << lot.top()->getLicence() << endl;
		delete lot.top();
		lot.pop();
	}
    */

	ifstream inf;
	inf.open("data.txt");

	if (! inf){
		cout << "woops no file" << endl;
		return EXIT_FAILURE;
	}
	cout << "file opened" << endl;
	string tag, status;
	while(inf >> tag){
		inf >> status;
		Car *c = new Car(tag);
		if(status == "arrives"){
			if(lot.size() < 5)

				// park it
				lot.push(c);
			else{

				// reject it
				cout << " Lot too full for " << c->getLicence() << endl;
				delete c;
			}
		}

		// departing case
		else {
			stack<Car *>aux;
			while(!lot.empty()){
				if(lot.top()->getLicence()==tag){
					cout << tag << " departing moved " << lot.top()->getMoves() << endl;
					delete lot.top();
					lot.pop();
					while(!aux.empty()){
					//	cout << " getting back from aux " << aux.top()->getLicence() << endl;
						lot.push(aux.top());
						aux.pop();
					}
					break;
				}
				else{	
					aux.push(lot.top());
					lot.pop();
					aux.top()->incMoves();
					//cout << " adding to aux " << aux.top()->getLicence() 
					//	<< " moves " << aux.top()->getMoves() << endl;
				}
			}
		}
		//cout << tag << " " << status << endl;
	}
	inf.close();
	while(!lot.empty()){
		delete lot.top();
		lot.pop();
	}

	return EXIT_SUCCESS;
}