import time

class CircuitBreaker:
    def __init__(self, failure_threshold: int = 3, recovery_timeout: int = 10) -> None:
        self.failure_threshold = failure_threshold
        self.recovery_timeout = recovery_timeout
        self.failure_count = 0
        self.last_failure_time = None
        self.state = "CLOSED" # OPEN, CLOSED, HALF-OPEN

    def call(self, function, *args, **kwargs):
        if self.state == "OPEN" and self.last_failure_time is not None:
            if time.time() - self.last_failure_time >= self.recovery_timeout:
                self.state = "HALF-OPEN"
            else:
                raise Exception("Circuit is open")
            
        try:
            result = function(*args, **kwargs)
            self.on_success()
            return result
        except Exception as error: 
            self.on_failure()
            raise error

    def on_success(self):
        self.failure_count = 0
        self.state = "CLOSED"

    def on_failure(self):
        self.failure_count += 1
        self.last_failure_time = time.time()
        if self.failure_count >= self.failure_threshold:
            self.state = "OPEN"