using System;
using UnityEngine;
using UnityEngine.Events;
using OHM.UnityToolkit;

namespace OHM.UnityToolkit.Localization
{
	public class LocalizationManager : UniqueInstance<LocalizationManager>
	{
		public LocalesList localesList;

		public bool autoSetLang;

		public UnityEvent OnLangChanged;

		private bool _showDebug;

		public LocaleDef CurrentLocale { get; private set; }

		protected override void AwakeInstance()
		{
			if (autoSetLang)
			{
				SetLanguage(Application.systemLanguage);
			}
		}

		public void SetLanguage(SystemLanguage lang)
		{
			CurrentLocale = null;
			if (localesList == null || localesList.locales == null || localesList.locales.Count < 1)
			{
				Debug.LogError("No locale defined");
				return;
			}
			if (lang == SystemLanguage.Unknown)
			{
				lang = Application.systemLanguage;
			}
			foreach (LocaleDef locale in localesList.locales)
			{
				if (locale.language == lang)
				{
					CurrentLocale = locale;
				}
			}
			if (CurrentLocale == null)
			{
				CurrentLocale = localesList.locales[0];
				Debug.Log("No specific locale found for language" + lang + ". Using default : " + CurrentLocale.language);
			}
			OnLangChanged.Invoke();
		}

		public void TestLocale(LocaleDef locale)
		{
			CurrentLocale = locale;
			OnLangChanged.Invoke();
		}

		public string Localize(string key)
		{
			return LocalizationUtils.Localize(CurrentLocale, key);
		}

		public string LocalizeFormat(string key, object[] args)
		{
			string localized = LocalizationUtils.Localize(CurrentLocale, key);
			try
			{
				localized = string.Format(localized, args);
			}
			catch (FormatException)
			{
				Debug.LogWarningFormat("Locale key {0} does not match the required format", key);
			}
			return localized;
		}

		public void DrawDebug()
		{
		}

	}
}