package view;

import model.Article;
import java.util.Scanner;

public class ConsoleView {
    private Scanner scanner;
    
    public ConsoleView() {
        scanner = new Scanner(System.in);
    }
    
    public void showWelcome() {
        System.out.println("\n╔══════════════════════════════════════╗");
        System.out.println("║     多网站爬虫系统 - CLI版本         ║");
        System.out.println("╚══════════════════════════════════════╝\n");
    }
    
    public void showHelp() {
        System.out.println("\n========== 帮助信息 ==========");
        System.out.println("可用命令：");
        System.out.println("  1 或 jjwxc  - 爬取晋江文学城");
        System.out.println("  2 或 baidu   - 爬取百度");
        System.out.println("  3 或 httpbin - 爬取HttpBin");
        System.out.println("  4 或 bing    - 爬取必应搜索");
        System.out.println("  all          - 爬取所有网站");
        System.out.println("  list         - 显示已爬取数据");
        System.out.println("  save         - 保存数据到文件");
        System.out.println("  help         - 显示帮助信息");
        System.out.println("  exit         - 退出程序");
        System.out.println("==============================\n");
    }
    
    public void showMessage(String message) {
        System.out.println(message);
    }
    
    public void showError(String error) {
        System.out.println("[错误] " + error);
    }
    
    public void showArticle(Article article) {
        System.out.println("\n---------- 爬取结果 ----------");
        System.out.println("来源: " + article.getSource());
        System.out.println("标题: " + article.getTitle());
        System.out.println("链接: " + article.getUrl());
        String content = article.getContent();
        if (content != null && content.length() > 200) {
            content = content.substring(0, 200) + "...";
        }
        System.out.println("内容: " + content);
        System.out.println("------------------------------\n");
    }
    
    public String getInput() {
        System.out.print("请输入命令 > ");
        return scanner.nextLine().trim().toLowerCase();
    }
    
    public void showGoodbye() {
        System.out.println("\n感谢使用，再见！");
    }
    
    public void showStrategies(String[] names) {
        System.out.println("\n可用网站：");
        for (int i = 0; i < names.length; i++) {
            System.out.println("  " + (i + 1) + ". " + names[i]);
        }
    }
}