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package com.juick.command;

import com.juick.User;
import com.juick.service.TagService;
import com.juick.service.UserService;
import lombok.Getter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.List;
import java.util.regex.Pattern;

/**
 * @author ma1uta
 */
@Component
@Getter
public class ShowBlacklist implements Command {

    private static final Pattern PATTERN = Pattern.compile("^bl$", Pattern.CASE_INSENSITIVE);

    private final UserService userService;
    private final TagService tagService;

    @Autowired
    public ShowBlacklist(UserService userService, TagService tagService) {
        this.userService = userService;
        this.tagService = tagService;
    }

    @Override
    public Pattern pattern() {
        return PATTERN;
    }

    @Override
    public String help() {
        return "BL - Show your blacklist";
    }

    @Override
    public String execute(User sender, MessageListener protocolListener, String command) {
        List<User> blusers = getUserService().getUserBLUsers(sender.getUid());
        List<String> bltags = getTagService().getUserBLTags(sender.getUid());

        StringBuilder txt = new StringBuilder();
        if (bltags.size() > 0) {
            for (String bltag : bltags) {
                txt.append("*").append(bltag).append("\n");
            }

            if (blusers.size() > 0) {
                txt.append("\n");
            }
        }
        if (blusers.size() > 0) {
            for (User bluser : blusers) {
                txt.append("@").append(bluser.getName()).append("\n");
            }
        }
        if (txt.length() == 0) {
            txt.append("You don't have any users or tags in your blacklist.");
        }

        return txt.toString();
    }
}