using System.Collections;
using UnityEngine;

namespace TMPro.Examples
{
	public class TextConsoleSimulator : MonoBehaviour
	{
		private TMP_Text m_TextComponent;

		private bool hasTextChanged;

		private void Awake()
		{
			m_TextComponent = base.gameObject.GetComponent<TMP_Text>();
		}

		private void Start()
		{
			StartCoroutine(RevealCharacters(m_TextComponent));
		}

		private void OnEnable()
		{
			TMPro_EventManager.TEXT_CHANGED_EVENT.Add(ON_TEXT_CHANGED);
		}

		private void OnDisable()
		{
			TMPro_EventManager.TEXT_CHANGED_EVENT.Remove(ON_TEXT_CHANGED);
		}

		private void ON_TEXT_CHANGED(Object obj)
		{
			hasTextChanged = true;
		}

		private IEnumerator RevealCharacters(TMP_Text textComponent)
		{
			textComponent.ForceMeshUpdate();
			TMP_TextInfo textInfo = textComponent.textInfo;
			int totalVisibleCharacters = textInfo.characterCount;
			int visibleCount = 0;
			while (true)
			{
				if (hasTextChanged)
				{
					totalVisibleCharacters = textInfo.characterCount;
					hasTextChanged = false;
				}
				if (visibleCount > totalVisibleCharacters)
				{
					yield return new WaitForSeconds(1f);
					visibleCount = 0;
				}
				textComponent.maxVisibleCharacters = visibleCount;
				visibleCount++;
				yield return new WaitForSeconds(0f);
			}
		}

		private IEnumerator RevealWords(TMP_Text textComponent)
		{
			textComponent.ForceMeshUpdate();
			int totalWordCount = textComponent.textInfo.wordCount;
			int totalVisibleCharacters = textComponent.textInfo.characterCount;
			int counter = 0;
			int currentWord = 0;
			int visibleCount = 0;
			while (true)
			{
				currentWord = counter % (totalWordCount + 1);
				if (currentWord == 0)
				{
					visibleCount = 0;
				}
				else if (currentWord < totalWordCount)
				{
					visibleCount = textComponent.textInfo.wordInfo[currentWord - 1].lastCharacterIndex + 1;
				}
				else if (currentWord == totalWordCount)
				{
					visibleCount = totalVisibleCharacters;
				}
				textComponent.maxVisibleCharacters = visibleCount;
				if (visibleCount >= totalVisibleCharacters)
				{
					yield return new WaitForSeconds(1f);
				}
				counter++;
				yield return new WaitForSeconds(0.1f);
			}
		}
	}
}