package com.example.programingquiz;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import com.google.android.material.snackbar.Snackbar;

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

import java.util.ArrayList;
import java.util.Collections;

public class BeginnerTaskActivity extends AppCompatActivity {

    TextView questionTV, contentTV;
    Button aBtn, bBtn;

    CategoryActivity.DifficultyType difficultyType;
    String login, taskCategory;
    LoginActivity.LoginType loginType;
    long taskID;

    @Override
    public void onBackPressed() {}

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_beginner_task);

        questionTV = findViewById(R.id.questionTV);
        contentTV = findViewById(R.id.contentTV);
        aBtn = findViewById(R.id.aBtn);
        bBtn = findViewById(R.id.bBtn);

        aBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                openReportActivity(aBtn.getText().toString());
            }
        });

        bBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                openReportActivity(bBtn.getText().toString());
            }
        });

        getIntentExtras();
        drawTask();
    }

    private void getIntentExtras(){
        Intent intent = getIntent();
        login = intent.getStringExtra("login");
        loginType = (LoginActivity.LoginType) intent.getSerializableExtra("type");
        taskCategory = intent.getStringExtra("taskCategory").toLowerCase();
        difficultyType = (CategoryActivity.DifficultyType) intent.getSerializableExtra("difficultyType");
    }

    private void drawTask(){
        String url = StartActivity.URL + "api/drawTask/" + taskCategory + "/" + difficultyType.toString();
        RequestQueue queue = Volley.newRequestQueue(getApplicationContext());
        JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                try {
                    questionTV.setText(response.getString("question"));
                    taskID = response.getInt("id");

                    contentTV.setText(response.getString("content").replace("\\n", "\n").replace("\\t", "\t"));

                    JSONArray array = response.getJSONArray("answers");
                    ArrayList <String> answers = shuffleAnswers(array);
                    aBtn.setText(answers.get(0));
                    bBtn.setText(answers.get(1));

                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }, new com.android.volley.Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Snackbar.make(findViewById(android.R.id.content), "some error occurred, please try again later", Snackbar.LENGTH_LONG).show();

                String errorMsg = error.toString();
                System.out.println(errorMsg);
            }
        });
        queue.add(request);
    }

    private ArrayList<String> shuffleAnswers(JSONArray answers){
        ArrayList <String> result = new ArrayList<>();
        for(int i = 0; i < answers.length(); i++) {
            try {
                result.add(answers.getString(i));
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
        Collections.shuffle(result);
        return result;
    }

    private void openReportActivity(String userAnswer){
        Intent intent = new Intent(this, ReportActivity.class);

        intent.putExtra("login", login);
        intent.putExtra("type", loginType);
        intent.putExtra("taskID", taskID);
        intent.putExtra("difficultyType", difficultyType);
        intent.putExtra("taskCategory", taskCategory);
        intent.putExtra("userAnswer", userAnswer);
        intent.putExtra("aAnswer", aBtn.getText().toString());
        intent.putExtra("bAnswer", bBtn.getText().toString());

        startActivity(intent);
    }
}