// ***********************************************************************
// Assembly         : Unity
// Author           : Kimch
// Created          : 
//
// Last Modified By : Kimch
// Last Modified On : 
// ***********************************************************************
// <copyright file= "LanguageProxy" company=""></copyright>
// <summary></summary>
// ***********************************************************************
namespace G
{
	using System.Collections;
	using System.Collections.Generic;
	using F;
	using UnityEngine;

	internal class LanguageProxy : GameProxy
	{
		#region Property

		public LanguageEntry defaultLanguage
		{
			get;
			private set;
		}

		public LanguageEntry currentLanguage
		{
			get;
			private set;
		}

		public LanguageEntry[] allLanguages
		{
			get;
			private set;
		}

		public SystemLanguage systemLanguage
		{
			get { return Application.systemLanguage; }
		}

		public override int priority
		{
			get
			{
				return 998;
			}
		}

		#endregion

		#region Method       

		public LanguageEntry GetLanguage(string name)
		{
			if (allLanguages != null)
			{
				return System.Array.Find(allLanguages, l => l.name == name);
			}
			return null;
		}

		public void SetLanguage(string name)
		{
			currentLanguage = GetLanguage(name);
			if (currentLanguage == null)
			{
				currentLanguage = defaultLanguage;
			}
			PlayerPrefs.SetString("language", currentLanguage.name);
			PlayerPrefs.Save();
		}

		private void Load(IDictionary<string, object> table)
		{
			var langList = table.GetList("language");
			if (langList != null && langList.Count > 0)
			{
				var languages = new LanguageEntry[langList.Count - 1];

				var tmpL0 = (IList<object>)langList[0];

				int nameIndex = tmpL0.IndexOf("name");
				int iconIndex = tmpL0.IndexOf("icon");
				int dataIndex = tmpL0.IndexOf("data");
				int mainIndex = tmpL0.IndexOf("main");

				for (int i = 1; i < langList.Count; i++)
				{
					var tmpLi = (IList<object>)langList[i];

					var language = new LanguageEntry
					{
						name = tmpLi.GetString(nameIndex),
						iconName = tmpLi.GetString(iconIndex),
						database = tmpLi.GetString(dataIndex),
					};

					var keySegment = tmpLi.GetIntArray(mainIndex);
					if (keySegment != null && keySegment.Length >= 2)
					{
						language.keyRangeMin = keySegment[0];
						language.keyRangeMax = keySegment[1];
						defaultLanguage = language;
						defaultLanguage.SetAsDefault();
					}

					language.LoadEntries(table.GetList(language.database));
					languages[i - 1] = language;
				}

				allLanguages = languages;
			}
		}

		private void ApplyLanguage()
		{
			var languageName = PlayerPrefs.GetString("language", string.Empty);
			if (string.IsNullOrEmpty(languageName))
			{
				var systemLanguage = Application.systemLanguage;
				switch (systemLanguage)
				{
					case SystemLanguage.ChineseSimplified:
						currentLanguage = GetLanguage("ChineseSimplified");
						PlayerPrefs.SetString("language", "ChineseSimplified");
						PlayerPrefs.Save();
						break;
					default:
						currentLanguage = GetLanguage("ChineseSimplified");
						PlayerPrefs.SetString("language", "ChineseSimplified");
						PlayerPrefs.Save();
						break;
				}
				if (currentLanguage == null)
				{
					currentLanguage = defaultLanguage;
				}
			}
			else
			{
				currentLanguage = GetLanguage(languageName);
				if (currentLanguage == null)
				{
					currentLanguage = defaultLanguage;
				}
			}
		}

		/// <summary>
		/// Ĭ�ϴ���Id
		/// </summary>
		/// <param name="entry"></param>
		/// <returns></returns>
		public int GetStringId(string entry)
		{
			if (defaultLanguage != null)
			{
				defaultLanguage.TryGetId(entry, out int id);
				return id;
			}
			return 0;
		}

		/// <summary>
		/// 用默认语言翻译本地语言
		/// </summary>
		/// <param name="id"></param>
		/// <returns></returns>
		public string GetLocalString(int id)
		{
			if (currentLanguage != null)
			{
				currentLanguage.TryGet(id, out string entry);
				return entry;
			}
			return string.Empty;
		}

		/// <summary>
		/// 用默认语言翻译本地语言
		/// </summary>
		/// <param name="entry"></param>
		/// <returns></returns>
		public string GetTranslateString(string entry)
		{
			if (defaultLanguage == null || currentLanguage == null || currentLanguage == defaultLanguage)
			{
				return entry;
			}

			if (defaultLanguage.TryGetId(entry, out int id))
			{
				currentLanguage.TryGet(id, out string retEntry);
				return retEntry;
			}
			return entry;
		}

		#endregion

		#region Unity

		public static LanguageProxy Instance { get; private set; }

		public LanguageProxy()
		{
			Instance = this;
		}

		public void LoadBytes(byte[] bytes)
		{
			var table = bytes.ToJsonTable();
			if (table != null)
			{
				Load(table);
			}
			ApplyLanguage();
		}

		//// Use this for initialization
		//public async override Task LoadAsync()
		//{
		//	TextAsset textAsset = await AssetProxy.Instance.GetConfigAssetAsync("language");
		//	if (textAsset)
		//	{
		//		var table = textAsset.bytes.ToJsonTable();
		//		if (table != null)
		//		{
		//			Load(table);
		//		}
		//		AssetProxy.Instance.ReleaseAsset(textAsset);
		//	}
		//	ApplyLanguage();
		//}

		#endregion
	}
}