using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class UntangleManager : MonoBehaviour
{
    public int gameMode = 0;
    public List<UntangleQuestion> questions = new List<UntangleQuestion>();
    public static UntangleManager instance;
    public UntangleDrop dropTrans;
    public Transform answerOrganizer;
    public GameObject answerPrefab;
    public Animator anim;
    private int currentIndex;

    void Awake()
    {
        instance = this;
        BreakupAnswer();
        SetupQuestion();
        GameControl.instance.StartedGame();
    }

    public void BreakupAnswer()
    {
        for (int i = 0; i < questions.Count;i++)
        {
            string[] splittedAnswers = questions[i].questionStr.Split('%');
            for (int n = 0; n < splittedAnswers.Length; n++)
            {
                questions[i].answers.Add(new UntangleQuestion.UntangleAnswer(splittedAnswers[n], n));
            }
        }
    }

    public void OrganizeAnswer()
    {
        List<int> avaliable = new List<int>();
        for (int n = 0; n < questions[currentIndex].answers.Count;n++)
        {
            avaliable.Add(n);
        }
        if (answerOrganizer.childCount > 0)
        {
            RemoveAnswers();
        }
        for (int i = 0; i < questions[currentIndex].answers.Count; i++)
        {
            int pickedR = Random.Range(0, avaliable.Count);
            int pickedN = avaliable[pickedR];
            Instantiate(answerPrefab, answerOrganizer, false).GetComponent<UntangleDrag>().SetupAnswer(questions[currentIndex].answers[pickedN],gameMode);
            avaliable.RemoveAt(pickedR);
        }
    }

    public void SetupQuestion()
    {
        dropTrans.ReceiveQuestion(questions[currentIndex]);
        OrganizeAnswer();
    }

    public void RemoveAnswers()
    {
        int startN = answerOrganizer.childCount;
        for(int i = 0; i < startN; i++)
        {
            Destroy(answerOrganizer.GetComponentsInChildren<UntangleDrag>()[i].gameObject);
        }
    }

    public void NextQuestion()
    {
        anim.SetTrigger("Correct");
        A10D1AudioSystem.instance.Correct();
        currentIndex++;
        if (currentIndex == questions.Count)
        {
            GameControl.instance.FinishGame();
        }
        else
        {
            SetupQuestion();
        }
    }

}