import java.util.*;

public class Game {
    private Airport airport;
    private ArrayList<Airplane> airplanes;
    private int score;

    public Game(Airport airport) {
        this.airport = airport;
        this.airplanes = new ArrayList<Airplane>();
        this.score = 0;
    }

    public void startGame() {
        Timer updateTimer = new Timer();
        updateTimer.schedule(new TimerTask() {
            @Override
            public void run() {
                // TO DO: Update game
                for (Map.Entry<Airplane, Runway> air: airport.getAirplanes().entrySet()) {
                    if ((air.getKey().getNextPointDistance() <= 0) && (air.getKey().getState() != AirplaneState.LANDING)) {
                        air.getKey().setState(AirplaneState.LANDING);
                        air.getValue().traffic();
                        air.getKey().setNextPointDistance(Math.round(air.getValue().getLength()/10000.0*10.0)/10.0);
                    } else if ((air.getKey().getNextPointDistance() <= 0) && (air.getKey().getState() == AirplaneState.LANDING)) {
                        air.getKey().setState(AirplaneState.PARKING);
                        air.getValue().freeToUse();
                        System.out.println("PARKING! Hurá!");
                    } else
                    {
                        switch (air.getKey().getState()) {
                            case TRY_TO_DEPART -> {
                                air.getKey().setNextPointDistance(Math.round((air.getKey().getNextPointDistance() - 0.1) * 100.0) / 100.0);
                                System.out.println("Letadlo "+ air.getKey().getIdAir() + " typu " + air.getKey().getType()  + " má vzdálenost od letiště " + air.getKey().getNextPointDistance() + " a letí na dráhu " + air.getValue().getId());
                            }
                            case TRY_TO_DEPART_SLOW -> {
                                air.getKey().setNextPointDistance(Math.round((air.getKey().getNextPointDistance() - 0.05) * 1000.0) / 1000.0);
                                System.out.println("Letadlo "+ air.getKey().getIdAir() + " typu " + air.getKey().getType()  + " má vzdálenost od letiště " + air.getKey().getNextPointDistance() + " a letí na dráhu " + air.getValue().getId());
                            }
                            case TRY_TO_DEPART_FAST -> {
                                air.getKey().setNextPointDistance(Math.round((air.getKey().getNextPointDistance() - 0.2) * 100.0) / 100.0);
                                System.out.println("Letadlo "+ air.getKey().getIdAir() + " typu " + air.getKey().getType()  + " má vzdálenost od letiště " + air.getKey().getNextPointDistance() + " a letí na dráhu " + air.getValue().getId());
                            }
                            case LANDING -> {
                                air.getKey().setNextPointDistance(Math.round((air.getKey().getNextPointDistance() - 0.1) * 100.0) / 100.0);
                                System.out.println("Letadlo "+ air.getKey().getIdAir() + " typu " + air.getKey().getType()  + " má vzdálenost od konce dráhy pro přistání " + air.getKey().getNextPointDistance() + " na dráze " + air.getValue().getId());

                            }

                        }
                    }


                    if (expediteRandomTest()) {
                        expediteAirplane(air.getKey());
                        break;
                    }
                }


            }
        },0,1000);
    }

    public void makeAirplane() {
        Random random = new Random();
        Airplane airplane;
        switch (random.nextInt(3)) {
            case 0:
                airplane = new Airplane("Boeing 777");
                airplanes.add(airplane);
                addRunwayToAirplane(airplane);
                if (speedRandomTest()){
                    slowDownAirplane(airplane);
                }
                break;
            case 1:
                airplane = new Airplane("Airbus A-320");
                airplanes.add(airplane);
                addRunwayToAirplane(airplane);
                if (speedRandomTest()){
                    increaseAirplane(airplane);
                }
                break;
            case 2:
                airplane = new Airplane("Boeing 737");
                airplanes.add(airplane);
                addRunwayToAirplane(airplane);
                break;
        }


    }
    private boolean speedRandomTest() {
        Random random = new Random();
        return random.nextBoolean();
    }

    private boolean expediteRandomTest() {
        Random random = new Random();
        return random.nextInt(100) == 5;
    }


    public void slowDownAirplane(Airplane airplane) {
        if (airplane.getState() == AirplaneState.TRY_TO_DEPART) {
            // actual state: default
            airplane.setState(AirplaneState.TRY_TO_DEPART_SLOW);
        } else {
            // actual state: fast
            airplane.setState(AirplaneState.TRY_TO_DEPART);
        }
    }

    public void increaseAirplane(Airplane airplane) {
        if (airplane.getState() == AirplaneState.TRY_TO_DEPART) {
            airplane.setState(AirplaneState.TRY_TO_DEPART_FAST);
        } else {
            airplane.setState(AirplaneState.TRY_TO_DEPART);
        }
    }

    public void expediteAirplane(Airplane airplane) {
        airplane.setState(AirplaneState.EXPEDITE_OFF);
        System.out.println("Letadlo " + airplane.getIdAir() + " je přesměrováno na jiné letiště.");
        airplanes.remove(airplane);
        airport.removeAirplanes(airplane, airport.getRunwayForAirplane(airplane));
    }

    public void addRunwayToAirplane(Airplane airplane){
        ArrayList<Runway> runwaysOnAirport = airport.getRunways();
        Random random = new Random();
        airport.addAirplanes(airplane, runwaysOnAirport.get(random.nextInt(runwaysOnAirport.size())));
    }
}