using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class ShowQuiz : MonoBehaviour
{
    public TextMeshProUGUI questText;
    public TextMeshProUGUI[] answerTexts;

    public ControlQuiz controlQuiz;
    public GameObject panelFeedback;
    public TextMeshProUGUI feedbackText;
    public GameObject panelGameOver;
    public Image panelFeedColor;

    [Header("Nyawa")]
    public GameObject[] heart;
    public int heartCount;

    public GameObject panelQuest;
    public PickupItem pickupItem;

    private List<int> usedQuestions = new List<int>();
    private int currentQuestionIndex;

    private bool isAnswerCorrect = false;

    public TextMeshProUGUI textSoalBiasa;
    public GameObject scrollSoalPanjang;
    public TextMeshProUGUI textSoalPanjang;

    AudioGame audioGame;

    private void Awake()
    {
        audioGame = GameObject.FindGameObjectWithTag("Audio").GetComponent<AudioGame>();
    }
    void Start()
    {
        //totalPoint = 0;
        heartCount = heart.Length;
        UpdateNyawaUI();
        //GenerateQuiz();
    }

    void GenerateQuiz()
    {
        do
        {
            currentQuestionIndex = Random.Range(0, controlQuiz.quests.Count);
        }
        while (usedQuestions.Contains(currentQuestionIndex));

        usedQuestions.Add(currentQuestionIndex);

        //questText.text = controlQuiz.quests[currentQuestionIndex].elementQuest.quest;
        string soal = controlQuiz.quests[currentQuestionIndex].elementQuest.quest;

        const int maxLengthNoScroll = 200;
        bool isLong = soal.Length > maxLengthNoScroll;

        if (isLong)
        {
            // Tampilkan scroll
            scrollSoalPanjang.SetActive(true);
            textSoalBiasa.gameObject.SetActive(false);
            textSoalPanjang.text = soal;
        }
        else
        {
            // Tampilkan biasa
            scrollSoalPanjang.SetActive(false);
            textSoalBiasa.gameObject.SetActive(true);
            textSoalBiasa.text = soal;
        }

        List<int> answerIndexes = new List<int> { 0, 1, 2, 3 };
        ShuffleList(answerIndexes);

        for (int i = 0; i < answerTexts.Length; i++)
        {
            int idx = answerIndexes[i];
            answerTexts[i].text = controlQuiz.quests[currentQuestionIndex].elementQuest.answers[idx];
        }
    }

    public void StartQuiz()
    {
        this.gameObject.SetActive(true);
        GenerateQuiz();
    }

    public void ButtonAnswer()
    {
        TextMeshProUGUI currentAnswer = EventSystem.current.currentSelectedGameObject.transform.GetChild(0).GetComponent<TextMeshProUGUI>();
        string selectedAnswer = currentAnswer.text;
        string correctAnswer = controlQuiz.quests[currentQuestionIndex].elementQuest.answers[
            controlQuiz.quests[currentQuestionIndex].elementQuest.trueAnswer
        ];

        if (selectedAnswer == correctAnswer)
        {
            feedbackText.text = "Benar!";
            panelFeedColor.color = new Color32(12, 213, 7, 255);
            //totalPoint += point;
            isAnswerCorrect = true;
            audioGame.PlaySFX(audioGame.correct);
        }
        else
        {
            feedbackText.text = "Salah!";
            panelFeedColor.color= Color.red;
            heartCount--;
            UpdateNyawaUI();
            isAnswerCorrect = false;
            audioGame.PlaySFX(audioGame.incorrect);

            if (heartCount <= 0)
            {
                Invoke(nameof(ShowGameOver), 1.5f);
                panelFeedback.SetActive(true);
                
                return;
            }
        }

        panelFeedback.SetActive(true);
        Invoke(nameof(CloseFeedback), 1.5f);
    }

    void CloseFeedback()
    {
        panelFeedback.SetActive(false);
        audioGame.PlaySFX(audioGame.popUp);
        this.gameObject.SetActive(false);

        if (panelQuest != null)
            panelQuest.SetActive(false);
        audioGame.PlaySFX(audioGame.popUp);

        if (pickupItem != null)
        {
            pickupItem.OnQuizFinished(isAnswerCorrect);
            audioGame.PlaySFX(audioGame.popUp);
        }
    }

    void ShuffleList(List<int> list)
    {
        for (int i = 0; i < list.Count; i++)
        {
            int temp = list[i];
            int randIndex = Random.Range(i, list.Count);
            list[i] = list[randIndex];
            list[randIndex] = temp;
        }
    }

    void UpdateNyawaUI()
    {
        for (int i = 0; i < heart.Length; i++)
        {
            if (i < heartCount)
                heart[i].GetComponent<Image>().color = Color.red;
            else
                heart[i].GetComponent<Image>().color = Color.black;
        }
    }

    void ShowGameOver()
    {
        panelFeedback.SetActive(false);
        panelQuest.SetActive(false);
        this.gameObject.SetActive(false);

        if (panelGameOver != null)
            panelGameOver.SetActive(true);
        audioGame.PlaySFX(audioGame.gameOver);

    }
}