using Cryville.Crtr.Browsing;
using System.Collections.Generic;
using System.ComponentModel;
using System.Reflection;
using UnityEngine;

namespace Cryville.Crtr {
	public class SettingsPanel : MonoBehaviour {
		[SerializeField]
		private GameObject m_categoryPrefab;

		private Transform _container;

#pragma warning disable IDE0051
		void Awake() {
			_container = transform.Find("Content/__content__");
		}
		public void Start() {
			LoadProperties();
			foreach (Transform c in _container) GameObject.Destroy(c.gameObject);
			foreach (var c in _categories) {
				var obj = GameObject.Instantiate<GameObject>(m_categoryPrefab);
				obj.transform.SetParent(_container, false);
				obj.GetComponent<PropertyCategoryPanel>().Load(c.Key, c.Value, Settings.Default);
			}
		}
#pragma warning restore IDE0051

		Dictionary<string, List<PropertyInfo>> _categories = null;
		public void LoadProperties() {
			if (_categories != null) return;
			_categories = new Dictionary<string, List<PropertyInfo>>();
			foreach (var p in typeof(Settings).GetProperties()) {
				bool browsable = true;
				string category = "miscellaneous";
				foreach (var attr in p.GetCustomAttributes(true)) {
					if (attr is BrowsableAttribute) {
						browsable = ((BrowsableAttribute)attr).Browsable;
						if (!browsable) break;
					}
					else if (attr is CategoryAttribute) {
						category = ((CategoryAttribute)attr).Category;
					}
				}
				if (!browsable) continue;
				if (!_categories.ContainsKey(category))
					_categories.Add(category, new List<PropertyInfo>());
				_categories[category].Add(p);
			}
		}
	}
}