package command;

import model.Article;
import controller.CrawlerController;
import util.FileUtil;
import java.util.List;

public class SaveCommand implements Command {
    private CrawlerController controller;
    
    public SaveCommand(CrawlerController controller) {
        this.controller = controller;
    }
    
    @Override
    public void execute() {
        try {
            List<Article> articles = controller.getArticles();
            if (articles.isEmpty()) {
                controller.getView().showMessage("没有数据可保存");
                return;
            }
            
            for (Article article : articles) {
                FileUtil.saveArticle(article);
            }
            
            FileUtil.saveArticles(articles, "summary.txt");
            
            controller.getView().showMessage("已保存 " + articles.size() + " 条数据到 data/ 目录");
        } catch (Exception e) {
            controller.getView().showError("保存失败: " + e.getMessage());
        }
    }
    
    @Override
    public String getDescription() {
        return "保存数据到文件";
    }
}