package defaultpackage.topic;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Created by zales on 02.03.2017.
 */
@Service
public class TopicService {

    @Autowired
    private TopicRepository topicRepository;

    private List<Topic> topics = new ArrayList<>(Arrays.asList(
        new Topic("spring", "Spring Framework", "Spring Framework Description"),
        new Topic("java", "Core Java", "Core Java Description"),
        new Topic("javascript", "JavaScript", "Java Script Description")
        ));

    public List<Topic> getAllTopics(){
        List<Topic> topics = new ArrayList<>();
        topicRepository.findAll()
                .forEach(topics::add);
        return topics;
    }

    public Topic getTopic(final String id){
        return topics.stream().filter(t -> t.getId().equals(id)).findFirst().get();
    }


    public void addTopic(Topic topic) {
        topicRepository.save(topic);
    }

    public void updateTopic(String id, Topic topic) {
        for(int i = 0; i < topics.size(); i++){
            Topic t = topics.get(i);
            if (t.getId().equals(id)){
                topics.set(i, topic);
                return;
            }

        }

    }

    public void deleteTopic(String id) {
        topics.removeIf(t -> t.getId().equals(id));
    }
}