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			23 lines
		
	
	
		
			445 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			445 B
		
	
	
	
		
			Python
		
	
	
	
	
	
"""Use cases module."""
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import abc
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from .adapters import EmailSender
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class UseCase(metaclass=abc.ABCMeta):
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    @abc.abstractmethod
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    def execute(self) -> None:
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        ...
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class SignupUseCase:
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    def __init__(self, email_sender: EmailSender) -> None:
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        self.email_sender = email_sender
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    def execute(self, email: str) -> None:
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        print(f"Sign up user {email}")
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        self.email_sender.send(email, f"Welcome, {email}")
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