package dev.elaine.springlab.domain;

import org.springframework.stereotype.Service;

@Service
public class GreetingService {
    private final GreetingPort greetingPort;

    public GreetingService(GreetingPort greetingPort) {
        this.greetingPort = greetingPort;
    }

    public String greet(String name) {
        if (name == null || name.isBlank()) {
            throw new IllegalArgumentException("name 不能为空");
        }
        return greetingPort.prefix() + "，" + name.strip();
    }
}