package com.aqupd.fabricdswl;

import com.aqupd.fabricdswl.utils.AqConfig;
import net.dv8tion.jda.api.JDA;
import net.dv8tion.jda.api.JDABuilder;
import net.dv8tion.jda.api.entities.Message;
import net.dv8tion.jda.api.entities.MessageChannel;
import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.dv8tion.jda.api.hooks.ListenerAdapter;
import net.fabricmc.api.DedicatedServerModInitializer;
import org.apache.commons.io.IOUtils;
import org.json.JSONArray;
import org.json.JSONObject;

import javax.security.auth.login.LoginException;

import java.io.*;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Objects;

import static com.aqupd.fabricdswl.utils.AqLogger.*;

public class Main implements DedicatedServerModInitializer {
    String token = AqConfig.INSTANCE.getStringProperty("bot.token");


    @Override
    public void onInitializeServer() {
        try {
            JDA api = JDABuilder.createDefault(token).build();
            api.awaitReady();
            api.addEventListener(new MyListener());
        } catch (InterruptedException | LoginException e) {
            e.printStackTrace();
        }
        logInfo("mod initialized");
    }

    public static class MyListener extends ListenerAdapter {
        @Override
        public void onMessageReceived(MessageReceivedEvent event) {
            String chid = AqConfig.INSTANCE.getStringProperty("channel.id");

            if (event.getAuthor().isBot()) return;
            // We don't want to respond to other bot accounts, including ourself
            Message message = event.getMessage();
            String content = message.getContentRaw();
            MessageChannel channel = event.getChannel();

            if(channel.getId().equals(chid)) {
                try {
                    File file = new File("whitelist.json");
                    if(file.exists()) {
                        InputStream is = new FileInputStream("whitelist.json");
                        String jsonTxt = IOUtils.toString(is, StandardCharsets.UTF_8);
                        JSONArray array = new JSONArray(jsonTxt);
                        String url = "https://api.mojang.com/users/profiles/minecraft/"+content;

                        String UUIDJson = IOUtils.toString(new URL(url));
                        if(UUIDJson.isEmpty()) channel.sendMessage("Nope(already or not exist)").queue();
                        JSONObject uuid = new JSONObject(UUIDJson);
                        uuid.put("uuid", insertDashUUID(uuid.getString("id")));
                        uuid.remove("id");
                        logInfo(uuid.toString());

                        boolean whitelisted = false;
                        for(int i=0; i < array.length(); i++){
                            if(Objects.equals(array.getJSONObject(i).toString(), uuid.toString())){
                                logInfo("already whitelisted");
                                whitelisted = true;
                            }
                        }
                        if(!whitelisted){
                            array.put(uuid);
                            logInfo(array.toString());
                        }
                        var writer = new FileWriter(file);
                        writer.write(array.toString());
                        writer.flush();
                        writer.close();
                        channel.sendMessage("Whitelisted!").queue();
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static String insertDashUUID(String uuid) {
        StringBuilder sb = new StringBuilder(uuid);
        sb.insert(8, "-");
        sb = new StringBuilder(sb.toString());
        sb.insert(13, "-");
        sb = new StringBuilder(sb.toString());
        sb.insert(18, "-");
        sb = new StringBuilder(sb.toString());
        sb.insert(23, "-");
        return sb.toString();
    }
}