#pragma warning(disable:4786)

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <stack>
#include <stdexcept>
#include <vector>
#include <algorithm>

#include "car.h"

using namespace std;

const int PARKING_SPOTS_PER_AISLE = 3;
const int NUMBER_OF_AISLES = 5;

void handle_arrival(vector<Car>&, vector<stack<string> >&, const string&);
void handle_departure(vector<Car>&, vector<stack<string> >&, const string&);
Car& find_car(vector<Car>&, string);

int main(int argc, char* argv[]) {

    try {
        /*
        if (argc != 2) {
            cerr << "Usage:\n" << argv[0] << " data-file";
            return EXIT_FAILURE;
        }*/

        ifstream inf("data.txt");
        if (! inf) {
            cerr << "Could not open " << argv[1];
            return EXIT_FAILURE;
        }

        vector<Car> cars;
        vector< stack<string> > parking_lot(NUMBER_OF_AISLES);

        while (! inf.eof()) {

            string action, plate;
            inf >> plate >> action;

            if (action == "arrives") {
                handle_arrival(cars, parking_lot, plate);
            }
            else if (action == "departs") {
                handle_departure(cars, parking_lot, plate);
            } else {
                cerr << "Unknown action: " << action << endl;
            }

        }
        inf.close();

        cout << "\nHere are all the cars that visited the lot today:\n";

        // TODO: Output the license plates of all the
        // cars that visited the lot, in alphabetical order


        return EXIT_SUCCESS;

    }
    catch (exception& e) {
        cerr << e.what() << endl;
    }
    catch (...) {
        cerr << "Unknown exception caught!" << endl;
    }

    return EXIT_FAILURE;
}

void handle_arrival(vector<Car>& cars, vector< stack<string> >& parking_lot, const string& plate) {

    for(int i = 0; i < parking_lot.size();i++)
    {
        if(parking_lot[i].size()<PARKING_SPOTS_PER_AISLE)
        {
            stack<string>& lot = parking_lot[i];
            lot.push(plate);
            cars.push_back(Car(plate,i));
            return;
        }

    }
    cout<<"Sorry"<< plate <<", the lot is full" <<endl;
}

void handle_departure(vector<Car>& cars, vector< stack<string> >& parking_lot, const string& plate) {

    Car& car_to_depart= find_car(cars,plate);
    stack<Car> sub;
    int number_of_lot = car_to_depart.getAisle();
    stack<string>& lot = parking_lot[number_of_lot];
    do{
        if(Car(lot.top()) == car_to_depart)
        {
            lot.pop();
            cout<< plate<< "was moved "<< (find_car(cars,lot.top())).getTimesMoved() << " times while it was here" << endl;
            while(sub.size() != 0)
            {
                Car& moved_car = sub.top();
                moved_car.setTimesMoved(moved_car.getTimesMoved()+1);
                sub.pop();
                lot.push(moved_car.getPlate());
            }
            break;
        }
        else
        {
            Car& prev_car = find_car(cars,lot.top());
            sub.push(prev_car);
            lot.pop();
        }
    }while(true);
}

Car& find_car(vector<Car>& cars, string plate) {
    return (*std::find(cars.begin(),cars.end(),Car(plate)));
}