import asyncio
import threading
import time
import random

num_philosophers = 7

class Dinner:
    def __init__(self, num_philosophers):
        self.forks = [threading.Lock() for i in range(num_philosophers)]
        self.counts = [0 for i in range(num_philosophers)]


    def finished(self):
        if all([i >= 5 for i in self.counts]):
            return True
        return False


    @staticmethod
    def think():
        # Подумали случайное время, это может быть полезно менять в рамках самотестирования
        time.sleep(0.15 * random.random())

    @staticmethod
    def eat():
        # Покушали случайное время, это может быть полезно менять в рамках самотестирования
        time.sleep(0.25 * random.random())


    def philosopher(self, i):
        i -= 1
        while not self.finished():
          if i % 2 == 0:
              self.forks[i].acquire()
              self.forks[(i+1) % num_philosophers].acquire()
              self.eat()
              self.counts[i] += 1
              self.forks[i].release()
              self.forks[(i+1) % num_philosophers].release()

          else:
              self.forks[(i+1) % num_philosophers].acquire()
              self.forks[i].acquire()
              self.eat()
              self.counts[i] += 1
              self.forks[i].release()
              self.forks[(i+1) % num_philosophers].release()







dinner = Dinner(num_philosophers)
philosophers = [threading.Thread(target=dinner.philosopher, args=(i,)) for i in range(num_philosophers)]
for p in philosophers:
    p.start()
for p in philosophers:
    p.join()