using System.Collections.Generic;
using Neatly.Module;

public class I18nModule : ModuleSingleton<I18nModule>
{
    private string m_DefaultLanguage;
    private Dictionary<string, Dictionary<string, string>> m_AllLanguageMap;

    public override void Init()
    {
        m_AllLanguageMap = new Dictionary<string, Dictionary<string, string>>();
    }

    public void SetDefaultLanguage(string language)
    {
        m_DefaultLanguage = language;
    }

    public string GetValue(string key, string language = null)
    {
        if (string.IsNullOrEmpty(language))
        {
            language = m_DefaultLanguage;
        }
        m_AllLanguageMap.TryGetValue(language, out var map);
        if (map == null)
        {
            map = CreateLanguageMap(language);
            m_AllLanguageMap.Add(language, map);
        }
        return map[key];
    }

    private Dictionary<string, string> CreateLanguageMap(string language)
    {
        byte[] byteArray = FileModule.Instance.ReadFileBytes("i18n", language);
        var languageMap = new Dictionary<string, string>();
        string str = System.Text.Encoding.UTF8.GetString(byteArray);
        foreach (var lineInfo in str.Split('\n'))
        {
            var infoArray = lineInfo.Split(',');
            languageMap.Add(infoArray[0], infoArray[1]);
        }
        return languageMap;
    }
}