java/w12/App.java

package com.crawler;

import com.crawler.command.*;
import com.crawler.controller.CrawlerController;
import com.crawler.repository.ArticleRepository;
import com.crawler.repository.InMemoryArticleRepository;
import com.crawler.view.ConsoleView;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;

public class App {
    private final Map<String, Command> commands = new HashMap<>();
    private final ConsoleView view;
    private final AtomicBoolean running = new AtomicBoolean(true);

    public App() {
        view = new ConsoleView();
        ArticleRepository repository = new InMemoryArticleRepository();
        CrawlerController controller = new CrawlerController(repository, view);

        commands.put("crawl", new CrawlCommand(controller, view));
        commands.put("list", new ListCommand(controller));
        commands.put("save", new SaveCommand(controller));
        commands.put("load", new LoadCommand(controller));
        commands.put("help", new HelpCommand(view));
        commands.put("exit", new ExitCommand(view, () -> running.set(false)));
    }

    public void run() {
        view.displayWelcome();
        view.displayHelp();

        while (running.get()) {
            try {
                String input = view.readInput();
                if (input.isEmpty()) {
                    continue;
                }

                String[] parts = input.split("\\s+", 3);
                String commandName = parts[0].toLowerCase();
                String[] args = parts.length > 1 ? java.util.Arrays.copyOfRange(parts, 1, parts.length) : new String[0];

                Command command = commands.get(commandName);
                if (command != null) {
                    command.execute(args);
                } else {
                    view.displayError("Unknown command: " + commandName);
                    view.displayInfo("Type 'help' for available commands");
                }
            } catch (Exception e) {
                view.displayError("Error: " + e.getMessage());
            }
        }
    }

    public static void main(String[] args) {
        App app = new App();
        app.run();
    }
}