using UnityEngine;
using UnityEngine.UI;

namespace HeathenEngineering.UIX
{
	public class Console : MonoBehaviour
	{
		[Tooltip("The text object log messages will be written to")]
		public int maxLines = 200;

		[Tooltip("The text object log messages will be written to")]
		public Text text;

		[Tooltip("The parent scroll rect of the text field")]
		public ScrollRect scrollRect;

		private void OnEnable()
		{
			Application.logMessageReceived += HandleLog;
		}

		private void OnDisable()
		{
			Application.logMessageReceived -= HandleLog;
		}

		private void HandleLog(string logString, string stackTrace, LogType type)
		{
			Color color;
			switch (type)
			{
			case LogType.Error:
			case LogType.Exception:
				color = Color.red;
				break;
			case LogType.Warning:
				color = Color.yellow;
				break;
			default:
				color = Color.white;
				break;
			}
			Text text = this.text;
			text.text = text.text + "\n<color=#" + ColorUtility.ToHtmlStringRGB(color) + ">" + logString + "</color>";
			Canvas.ForceUpdateCanvases();
			if (this.text.cachedTextGenerator.lineCount > maxLines)
			{
				UILineInfo uILineInfo = this.text.cachedTextGenerator.lines[this.text.cachedTextGenerator.lineCount - maxLines];
				this.text.text = this.text.text.Substring(uILineInfo.startCharIdx);
			}
			Canvas.ForceUpdateCanvases();
			scrollRect.verticalNormalizedPosition = 0f;
		}
	}
}