using System;
using System.Collections;
using Sirenix.OdinInspector;
using UnityEngine.Localization.Settings;

namespace BlueWater
{
    public enum LocaleType
    {
        한국어 = 0,
        English = 1
    }
    
    public class LocalizationManager : Singleton<LocalizationManager>
    {
        public bool IsInitialized;
        
        private bool _isChanging;

        private void Start()
        {
            var index = ES3.Load("Locale", GetCurrentLocaleIndex());
            ChangeLocale((LocaleType)index, () => IsInitialized = true);
        }

        /// <summary>
        /// <para>0 - 한국어</para>
        /// 1 - 영어
        /// </summary>
        /// <param name="index"></param>
        [Button("언어 변경")]
        public void ChangeLocale(LocaleType localeType, Action completeEvent = null)
        {
            if (_isChanging) return;

            StartCoroutine(ChangeLocaleCoroutine(localeType, completeEvent));
        }

        private IEnumerator ChangeLocaleCoroutine(LocaleType localeType, Action completeEvent)
        {
            _isChanging = true;

            yield return LocalizationSettings.InitializationOperation;
            LocalizationSettings.SelectedLocale = LocalizationSettings.AvailableLocales.Locales[(int)localeType];
            ES3.Save("Locale", (int)localeType);
            
            _isChanging = false;
            completeEvent?.Invoke();
        }
        
        public int GetCurrentLocaleIndex()
        {
            var selectedLocale = LocalizationSettings.SelectedLocale;
            var locales = LocalizationSettings.AvailableLocales.Locales;

            for (var i = 0; i < locales.Count; i++)
            {
                if (locales[i] == selectedLocale)
                {
                    return i;
                }
            }
            return -1;
        }
    }
}