package fr.ntr;

import fr.ntr.scheduler.RoundRobin;
import fr.ntr.scheduler.Scheduler;

import java.util.ArrayList;
import java.util.List;

public class Main {

    public static void main(String[] args) {

        if(args.length == 2) {
            int numberOfTicks; // Nombre de ticks de la simulation -> durée de la simulation
            int maximumLoad; // Nombre maximal d'utilisateurs dans le système
            try {
                numberOfTicks = Integer.parseInt(args[0]);
                maximumLoad = Integer.parseInt(args[1]);
                System.out.println("ticks: " + numberOfTicks + ", users: " + maximumLoad);
            } catch (NumberFormatException e) {
                System.err.println("Cannot parse launch argument to integer");
                System.exit(1);
                return;
            }
            //TODO : change timeSlotNb and subCarrierNb
            int timeSlotNb = 0;
            int subCarrierNb = 0;
            List<User> users = generateUsers(20, timeSlotNb, subCarrierNb);
            //TODO : generate users
            ResourceBlock[][] frame = new ResourceBlock[timeSlotNb][subCarrierNb];
            Scheduler scheduler = new RoundRobin("round robin", 0, frame);
            AccessPoint accessPoint = new AccessPoint(scheduler, frame, users, timeSlotNb, subCarrierNb, 0, 50);
            accessPoint.startSimulation(numberOfTicks, maximumLoad);
        }
        else {
            System.err.println("Please give launch arguments");
            System.err.println("gradle run --args=\"<number of ticks> <number of users>\"");
            System.exit(1);
        }
    }

    private static List<User> generateUsers(int nbUsers, int timeSlotNb, int subCarrierNb) {
        List<User> users = new ArrayList<>();
        // 2 groupes d'utilisateurs, proches et éloignés
        double[] distance = { 200d, 1000d };
        for (int i = 0; i < distance.length; i++) {
            for(int j = 0; j < nbUsers; j++){
                User user = new User(distance[i], timeSlotNb, subCarrierNb);
                users.add(user);
            }
        }
        return users;
    }
}