package cNameBot;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class MojangUtil {
	private static ObjectMapper mapper = new ObjectMapper();

	public static HashMap<String, String> getStats() {
		String data = getRequest("https://status.mojang.com/check");
		JsonNode root;
		HashMap<String, String> map = new HashMap<>();
		try {
			root = mapper.readTree(data);
			for (JsonNode node : root) {
				node.fields().forEachRemaining(entry -> {
					map.put(entry.getKey(), entry.getValue().textValue());
				});
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		return map;
	}

	public static String getUUIDFrom(String name) {
		String data = postRequest("https://api.mojang.com/profiles/minecraft", "[\"" + name + "\"]");
		try {
			JsonNode root = mapper.readTree(data);
			JsonNode node = root.path(0);
			return node.get("id").asText();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}

	public static List<String> getPastNames(String name) {
		return getPastNamesFromUUID(getUUIDFrom(name));
	}

	public static List<String> getPastNamesFromUUID(String uuid) {
		String data = getRequest("https://api.mojang.com/user/profiles/" + uuid + "/names");
		List<String> list = new LinkedList<String>();
		try {
			JsonNode root = mapper.readTree(data);
			for (JsonNode node : root) {
				String name = node.get("name").asText();
				if (!list.contains(name))
					list.add(name);
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		return list;
	}

	@SuppressWarnings("deprecation")
	public static String postRequest(String url, String data) {
		HttpURLConnection connection;
		try {
			URL url2 = new URL(url);
			connection = (HttpURLConnection) url2.openConnection();
			connection.setRequestMethod("POST");
			connection.setRequestProperty("Content-Type", "application/json");
			connection.setDoOutput(true);
			connection.setDoInput(true);
			DataOutputStream stream = new DataOutputStream(connection.getOutputStream());
			stream.write(data.getBytes("UTF-8"));
			stream.flush();
			stream.close();
			DataInputStream inStream = new DataInputStream(connection.getInputStream());
			String returnable = inStream.readLine();
			inStream.close();
			return returnable;
		} catch (IOException e) {
			e.printStackTrace();
			return "ERROR";
		}
	}

	@SuppressWarnings("deprecation")
	public static String getRequest(String url) {
		HttpURLConnection connection;
		try {
			URL url2 = new URL(url);
			connection = (HttpURLConnection) url2.openConnection();
			connection.setRequestMethod("GET");
			connection.setDoOutput(true);
			DataInputStream inStream = new DataInputStream(connection.getInputStream());
			String returnable = inStream.readLine();
			inStream.close();
			return returnable;
		} catch (IOException e) {
			e.printStackTrace();
			return "ERROR";
		}
	}
}