package com.example.datacollect.command;

import com.example.datacollect.model.Article;
import com.example.datacollect.repository.ArticleRepository;
import com.example.datacollect.strategy.CrawlStrategy;
import com.example.datacollect.strategy.StrategyFactory;
import com.example.datacollect.view.ConsoleView;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

import java.util.List;

public class AnalyzeCommand implements Command {
    private final ConsoleView view;
    private final StrategyFactory strategyFactory;

    public AnalyzeCommand(ConsoleView view, StrategyFactory strategyFactory) {
        this.view = view;
        this.strategyFactory = strategyFactory;
    }

    @Override
    public String getName() {
        return "analyze";
    }

    @Override
    public void execute(String[] args, ArticleRepository repository) {
        if (args.length < 2) {
            view.printError("Usage: analyze <url>");
            return;
        }
        String url = args[1];

        CrawlStrategy strategy = strategyFactory.getStrategy(url);
        if (strategy == null) {
            view.printError("No strategy found for: " + url);
            return;
        }

        try {
            view.printInfo("Analyzing: " + url);
            view.printInfo("Using strategy: " + strategy.getClass().getSimpleName());
            
            Document doc = Jsoup.connect(url).get();
            List<Article> articles = strategy.parse(url, doc);
            
            view.printSuccess("=== Analysis Statistics ===");
            view.printSuccess("URL: " + url);
            view.printSuccess("Strategy: " + strategy.getClass().getSimpleName());
            view.printSuccess("Articles found: " + articles.size());
            
            if (!articles.isEmpty()) {
                view.printSuccess("Sample titles:");
                int count = Math.min(3, articles.size());
                for (int i = 0; i < count; i++) {
                    view.printSuccess("  - " + articles.get(i).getTitle());
                }
                if (articles.size() > 3) {
                    view.printSuccess("  ... and " + (articles.size() - 3) + " more");
                }
            }
            
            view.printSuccess("Note: Articles were NOT stored in repository");
            
        } catch (Exception e) {
            view.printError("Failed to analyze: " + e.getMessage());
        }
    }
}