using PahlawanEnergi.Quiz;
using System;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.SceneManagement;

namespace PahlawanEnergi.Quiz
{
    public class QuizManager : MonoBehaviour
    {
        public static QuizManager instance;

        [Header("Quiz")]
        [SerializeField] private SO_QuizLibrary _library;
        public int level;
        [SerializeField] private Quiz quiz;
        [SerializeField] private List<QuizInteractable> quizInteractables = new List<QuizInteractable>();
        [SerializeField] private bool randomizeQuizOrder;

        [Header("Score")]
        [SerializeField] private int _score;
        [SerializeField] private int interactCount;
        [SerializeField] private TextMeshProUGUI scoreText;

        public int Score => _score;

        private void Awake()
        {
            instance = this;
        }

        void Start()
        {
            Initialize();
        }

        public void Initialize()
        {
            quiz = _library.GetQuizByLevel(level);
            
            List<int> shuffledIds = new List<int>();
            for (int i = 0; i < quizInteractables.Count; i++)
            {
                shuffledIds.Add(i + 1);
            }

            if (randomizeQuizOrder)
            {
                for (int i = shuffledIds.Count - 1; i > 0; i--)
                {
                    int rnd = UnityEngine.Random.Range(0, i + 1);
                    int temp = shuffledIds[i];
                    shuffledIds[i] = shuffledIds[rnd];
                    shuffledIds[rnd] = temp;
                }
            }

            for (int i = 0; i < quizInteractables.Count; i++)
            {
                if (quizInteractables[i] != null)
                {
                    quizInteractables[i].questionId = shuffledIds[i];
                }
            }

            _score = 0;
            scoreText.text = $"{_score}/{quiz.quizItems.Count}";
        }

        internal QuizItem GetQuestion(int questionId)
        {
            return quiz.GetQuizItemById(questionId);
        }

        public void CompleteQuestion(int questionId)
        {
            for (int i = 0; i < quizInteractables.Count; i++)
            {
                if (quizInteractables[i] != null && quizInteractables[i].questionId == questionId)
                {
                    quizInteractables[i].gameObject.SetActive(false);
                    break;
                }
            }
            interactCount++;
        }

        public void CheckEndGame()
        {
            if (interactCount >= quiz.quizItems.Count)
            {
                Invoke(nameof(EndGame), 1f);
            }
        }

        private void EndGame()
        {
            int finalStars = 0;

            if (_score == quiz.quizItems.Count)
            {
                finalStars = 3;
            }
            // Menghitung jika benar sekitar 60% atau lebih (misal 3 atau 4 benar dari 5 kuis)
            else if (_score >= Mathf.CeilToInt(quiz.quizItems.Count * 0.6f))
            {
                finalStars = 2;
            }
            else if (_score > 0)
            {
                finalStars = 1;
            }

            _score = finalStars;

            GameplayGUIManager.instance.OpenResultScreen();
            PlayerProgressData.instance.PlayGame(level, _score);
        }

        public void AddScore(int value)
        {
            _score += value;
            scoreText.text = $"{_score}/{quiz.quizItems.Count}";
        }

        public void GoToNextLevel()
        {
            SceneManager.LoadScene($"Level{level + 1}");
        }
    }
}