using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine.SceneManagement;

public class GameManager : MonoBehaviour {

	public Question[] questions;
	private static List<Question> UnansweredQuestions;

	private Question currentQuestion;

	[SerializeField]
	private Text factText;

	[SerializeField]
	private Text trueAnswerText;
	[SerializeField]
	private Text falseAnswerText;

	[SerializeField]
	private Animator animator;


	[SerializeField]
	private float timeBetweenQuestions = 1f;

	void Start ()
	{
		if (UnansweredQuestions == null || UnansweredQuestions.Count == 0)
		{
			UnansweredQuestions = questions.ToList<Question>();
		}

		SetCurrentQuestion ();

	}
	void SetCurrentQuestion()
	{
		int randomQuestionIndex = Random.Range (0, UnansweredQuestions.Count);
		currentQuestion = UnansweredQuestions [randomQuestionIndex];

		factText.text = currentQuestion.fact;

		if (currentQuestion.isTrue) {
			trueAnswerText.text = "CORRECT";
			falseAnswerText.text = "FALSE";
		} else
		{
			trueAnswerText.text = "WRONG";ø
			falseAnswerText.text = "CORRECT";
		}

	}

	IEnumerator TransitionToNextQuestion ()
	{
		UnansweredQuestions.Remove(currentQuestion);

		yield return new WaitForSeconds (timeBetweenQuestions);

		SceneManager.LoadScene (SceneManager.GetActiveScene().buildIndex );
	}


	public void UserSelectTrue ()
	{
		animator.SetTrigger("True");

		if (currentQuestion.isTrue)
		{
			Debug.Log ("correct");
		}else

		{ Debug.Log ("Wrong");

		}
		StartCoroutine(TransitionToNextQuestion());
		}

	public void UserSelectFalse ()
	{
		animator.SetTrigger("False");

		if (!currentQuestion.isTrue)
		{
			Debug.Log ("correct");
		}else

		{ Debug.Log ("Wrong");

		}
		StartCoroutine(TransitionToNextQuestion());
	}

		}