using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using BITKit;
using BITKit.UX;
using Net.BITKit.Localization;
using UnityEngine;
using UnityEngine.UIElements;

namespace Net.BITKit.UX
{
    public class UXLocalization
    {
        public string USS { get; set; } = "localized";
        private readonly IUXService _uxService;
        private readonly ILocalizationService _localizationService;

        public UXLocalization(IUXService uxService, ILocalizationService localizationService)
        {
            _uxService = uxService;
            _localizationService = localizationService;

            _localizationService.OnLanguageChanged += OnLanguageChanged;
        }

        private void OnLanguageChanged(string arg1, string arg2)
        {
            if(_uxService.Root is not VisualElement visualElement)return;

            foreach (var x in  visualElement.Query<Label>(className:USS).ToList())
            {
                if (string.IsNullOrEmpty(x.viewDataKey))continue;
                x.text = _localizationService.GetLocalizedString('#'+x.viewDataKey);
            }

            foreach (var x in visualElement.Query<Button>(className:USS).ToList())
            {
                if(string.IsNullOrEmpty(x.viewDataKey))continue;
                x.text = _localizationService.GetLocalizedString('#'+x.viewDataKey);
            }
            
            foreach (var x in visualElement.Query(className:USS).ToList())
            {
                if(string.IsNullOrEmpty(x.viewDataKey))continue;
                
               ContinueWithBaseType(x.GetType());
               continue;

               void ContinueWithBaseType(Type type)
               {
                   while (true)
                   {
                       if (type == null || type == typeof(object)) return;
                       if (type.GetProperty("label", ReflectionHelper.Flags) is { } propertyInfo)
                       {
                           //Debug.Log($"{x.name}:#{x.viewDataKey}");
                           propertyInfo.SetValue(x, _localizationService.GetLocalizedString('#' + x.viewDataKey));
                       }
                       else
                       {
                           type = type.BaseType;
                           continue;
                       }
                       break;
                   }
               }
            }
        }
    }

}