FourthStage

import org.json.JSONArray;
import org.json.JSONObject;

import javax.print.DocFlavor;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.ProtocolException;
import java.net.URL;
import java.text.ParseException;
import java.util.*;

import static java.util.stream.Collectors.toMap;

public class FourthStage {
    public static void main(String[] args) {
        System.out.println("Krsna");
        ThirdProgram();
    }

    private static void ThirdProgram() {
        try {
            Date dt = (new Date());
            URL restUrI = new URL("https://http-hunt.thoughtworks-labs.net/challenge/input");
            HttpURLConnection conn = (HttpURLConnection) restUrI.openConnection();
            try {
                conn.setRequestMethod("GET");
            } catch (ProtocolException e) {
                e.printStackTrace();
            }
            conn.setRequestProperty("userId", "A7HG3u8e_");
            conn.setRequestProperty("Accept", "application/json");


            JSONObject output = new JSONObject();
            JSONObject myrequest = null;

            myrequest = new JSONObject(new BufferedReader(new InputStreamReader(
                    (conn.getInputStream()))).readLine().toString());

            output.put("toolsToTakeSorted",FindCorrectTool(myrequest.getInt("maximumWeight"), myrequest.getJSONArray("tools")));
            JSONObject message = new JSONObject();
            message.put("output", output);
            System.out.println(message);
            URL url = new URL("https://http-hunt.thoughtworks-labs.net/challenge/output");
            conn = (HttpURLConnection) url.openConnection();
            conn.setDoOutput(true);
            conn.setRequestMethod("POST");
            conn.setRequestProperty("userId", "A7HG3u8e_");
            conn.setRequestProperty( "Content-Length", Integer.toString(output.toString().length() ));
            conn.setRequestProperty("Accept", "application/json");
            conn.setRequestProperty("content-type", "application/json");
            OutputStreamWriter wr= new OutputStreamWriter(conn.getOutputStream());
            wr.write(output.toString());
            wr.flush();
            Date dt2 = (new Date());
            System.out.println(dt2.getTime()-dt.getTime());
            System.out.println(conn.getResponseCode());
            if (conn.getResponseCode() != HttpURLConnection.HTTP_CREATED) {
                throw new RuntimeException("Failed : HTTP error code : "
                        + conn.getResponseCode());
            }

            BufferedReader br = new BufferedReader(new InputStreamReader(
                    (conn.getInputStream())));

            System.out.println("Output from Server .... \n");


            conn.disconnect();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static JSONArray FindCorrectTool(int maxWeight, JSONArray toolUsage) {
        try {
            System.out.println(maxWeight);
            System.out.println(toolUsage);
            Map<String, Integer> mapJson = new HashMap<>();
            Map<Integer, String> mapCompleteJson = new TreeMap<>(Collections.reverseOrder());
            for (int i = 0; i < toolUsage.length(); i++) {
                String toolName = (String) toolUsage.getJSONObject(i).getString("name");
                int toolWeight = toolUsage.getJSONObject(i).getInt("weight");
                int toolValue = toolUsage.getJSONObject(i).getInt("value");
                mapJson.put(toolName, toolWeight);
                mapCompleteJson.put(toolValue, toolName);
            }
            int carryWeight = 0;
            JSONArray jsonArray = new JSONArray();
            for(int key : mapCompleteJson.keySet()){
                if(carryWeight + mapJson.get(mapCompleteJson.get(key)) <= maxWeight){
                    carryWeight += mapJson.get(mapCompleteJson.get(key));
                    jsonArray.put(mapCompleteJson.get(key));
                }
            }
            System.out.println(carryWeight);
            //System.out.println(jsonArray.toString());
            /*final Map<String, Integer> sortedJson = mapJson.entrySet()
                    .stream()
                    .sorted(Collections.reverseOrder(Map.Entry.comparingByValue()))
                    .collect(
                            toMap(Map.Entry::getKey, Map.Entry::getValue, (e1, e2) -> e2,
                                    LinkedHashMap::new));
            JSONArray jsonArray = new JSONArray();
            for(String s: sortedJson.keySet()){
                System.out.println(s+"====="+sortedJson.get(s));
                jsonArray.put(s);
            }*/
            return jsonArray;
        }catch(Exception e){
                e.printStackTrace();
        }
        return null;
    }

}