package com.example.datacollect.controller;

import com.example.datacollect.command.AnalyzeCommand;
import com.example.datacollect.command.Command;
import com.example.datacollect.command.CrawlCommand;
import com.example.datacollect.command.ExitCommand;
import com.example.datacollect.command.HelpCommand;
import com.example.datacollect.command.HistoryCommand;
import com.example.datacollect.command.ListCommand;
import com.example.datacollect.repository.ArticleRepository;
import com.example.datacollect.strategy.StrategyFactory;
import com.example.datacollect.view.ConsoleView;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class CrawlerController {
    private final Map<String, Command> commands = new HashMap<>();
    private final ConsoleView view;
    private final ArticleRepository repository;
    private final List<String> commandHistory = new ArrayList<>();

    public CrawlerController(ConsoleView view, ArticleRepository repository, StrategyFactory strategyFactory) {
        this.view = view;
        this.repository = repository;
        register(new HelpCommand(view));
        register(new ListCommand(view));
        register(new CrawlCommand(view, strategyFactory));
        register(new AnalyzeCommand(view, strategyFactory));
        register(new ExitCommand(view));
        register(new HistoryCommand(view, commandHistory));
    }

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

    public void handle(String input) {
        String text = input == null ? "" : input.trim();
        if (text.isEmpty()) {
            return;
        }

        commandHistory.add(text);

        String[] args = text.split("\\s+");
        String cmdName = args[0].toLowerCase();
        Command command = commands.get(cmdName);
        if (command == null) {
            view.printError("Unknown command: " + cmdName);
            return;
        }
        command.execute(args, repository);
    }
}