package pp;

import java.util.concurrent.locks.ReentrantLock;

public class PhilosopherExperiment {
  static final int MAX_THINKING_DURATION_MS = 3000;
  static final int MAX_EATING_DURATION_MS = 3000;
  static final int MAX_TAKING_TIME_MS = 100;
  static final int PHILOSOPHER_NUM = 5;
  static final int EXP_DURATION_MS = 20000;
  static IPhilosopher[] philosophers = new Philosopher[PHILOSOPHER_NUM];

  public static void main(String... args) throws InterruptedException {
    var table = new ReentrantLock();
    for (var i = 0; i < PHILOSOPHER_NUM; i++) {
      philosophers[i] = new Philosopher();
      philosophers[i].setTable(table);
      philosophers[i].setSeat(i);
    }
    philosophers[0].setLeft(philosophers[PHILOSOPHER_NUM - 1]);
    philosophers[0].setRight(philosophers[1]);
    for (var i = 1; i < (PHILOSOPHER_NUM - 1); i++) {
      philosophers[i].setLeft(philosophers[i - 1]);
      philosophers[i].setRight(philosophers[i + 1]);
    }
    philosophers[PHILOSOPHER_NUM - 1]
        .setLeft(philosophers[PHILOSOPHER_NUM - 2]);
    philosophers[PHILOSOPHER_NUM - 1].setRight(philosophers[0]);
    for (var i = 0; i < PHILOSOPHER_NUM; i++) {
      philosophers[i].start();
    }
    Thread.sleep(EXP_DURATION_MS);
    for (var i = 0; i < PHILOSOPHER_NUM; i++) {
      philosophers[i].stopPhilosopher();
    }
  }
}