package controller;

import command.Command;
import command.CrawlCommand;
import command.ListCommand;
import command.HelpCommand;
import command.ExitCommand;
import command.PlatformCommand;
import view.ConsoleView;
import repository.PaperRepository;
import strategy.StrategyFactory;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class CrawlerController {
    private final ConsoleView view;
    private final PaperRepository repository;
    private final Map<String, Command> commands = new HashMap<>();
    
    public CrawlerController(ConsoleView view, PaperRepository repository, StrategyFactory strategyFactory) {
        this.view = view;
        this.repository = repository;
        
        register(new CrawlCommand(view, strategyFactory));
        register(new ListCommand(view));
        register(new PlatformCommand(view, strategyFactory));
        register(new ExitCommand(view));
        register(new HelpCommand(view, new ArrayList<>(commands.values())));
    }

    private void register(Command command) {
        commands.put(command.getName(), command);
    }

    public void run() {
        view.displayWelcome();
        
        while (true) {
            String input = view.getInput();
            if (input.isEmpty()) continue;
            
            String[] parts = input.split("\\s+");
            String commandName = parts[0].toLowerCase();
            
            if (!commands.containsKey(commandName)) {
                view.showError("未知命令，请输入 help 查看可用命令");
                continue;
            }
            
            Command command = commands.get(commandName);
            command.execute(parts, repository);
        }
    }
}