基于条件的API调用

# 策略模式示例
class ApiCallStrategy:
    def should_call(self, context):
        raise NotImplementedError

class UserInputStrategy(ApiCallStrategy):
    def should_call(self, context):
        return context.get('user_input') == 'specific_value'

class TimeBasedStrategy(ApiCallStrategy):
    def should_call(self, context):
        import datetime
        now = datetime.datetime.now()
        return now.hour in [9, 10, 11]

def get_strategy(context):
    if context.get('user_input'):
        return UserInputStrategy()
    elif context.get('time_based'):
        return TimeBasedStrategy()
    else:
        raise ValueError("Unknown strategy")

context = {'user_input': 'specific_value'}
strategy = get_strategy(context)
if strategy.should_call(context):
    print("Calling API")
else:
    print("Not calling API")

# 装饰器示例
def conditional_api_call(condition_func):
    def decorator(api_call_func):
        def wrapper(*args, **kwargs):
            if condition_func(*args, **kwargs):
                return api_call_func(*args, **kwargs)
            else:
                print("Condition not met, skipping API call")
        return wrapper
    return decorator

def user_input_condition(context):
    return context.get('user_input') == 'specific_value'

@conditional_api_call(user_input_condition)
def call_api(context):
    print("Calling API")

context = {'user_input': 'specific_value'}
call_api(context)