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using Ryujinx.Ava.UI.ViewModels;
using Ryujinx.Common;
using Ryujinx.Common.Utilities;
using Ryujinx.UI.Common.Configuration;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Globalization;
namespace Ryujinx.Ava.Common.Locale
{
class LocaleManager : BaseModel
{
private const string DefaultLanguageCode = "en_US";
private readonly Dictionary<LocaleKeys, string> _localeStrings;
private Dictionary<LocaleKeys, string> _localeDefaultStrings;
private readonly ConcurrentDictionary<LocaleKeys, object[]> _dynamicValues;
private string _localeLanguageCode;
public static LocaleManager Instance { get; } = new();
public event Action LocaleChanged;
public LocaleManager()
{
_localeStrings = new Dictionary<LocaleKeys, string>();
_localeDefaultStrings = new Dictionary<LocaleKeys, string>();
_dynamicValues = new ConcurrentDictionary<LocaleKeys, object[]>();
Load();
}
private void Load()
{
var localeLanguageCode = !string.IsNullOrEmpty(ConfigurationState.Instance.UI.LanguageCode.Value) ?
ConfigurationState.Instance.UI.LanguageCode.Value : CultureInfo.CurrentCulture.Name.Replace('-', '_');
// Load en_US as default, if the target language translation is missing or incomplete.
LoadDefaultLanguage();
LoadLanguage(localeLanguageCode);
// Save whatever we ended up with.
if (Program.PreviewerDetached)
{
ConfigurationState.Instance.UI.LanguageCode.Value = _localeLanguageCode;
ConfigurationState.Instance.ToFileFormat().SaveConfig(Program.ConfigurationPath);
}
}
public string this[LocaleKeys key]
{
get
{
// Check if the locale contains the key.
if (_localeStrings.TryGetValue(key, out string value))
{
// Check if the localized string needs to be formatted.
if (_dynamicValues.TryGetValue(key, out var dynamicValue))
{
try
{
return string.Format(value, dynamicValue);
}
catch (Exception)
{
// If formatting failed use the default text instead.
if (_localeDefaultStrings.TryGetValue(key, out value))
{
try
{
return string.Format(value, dynamicValue);
}
catch (Exception)
{
// If formatting the default text failed return the key.
return key.ToString();
}
}
}
}
return value;
}
// If the locale doesn't contain the key return the default one.
if (_localeDefaultStrings.TryGetValue(key, out string defaultValue))
{
return defaultValue;
}
// If the locale text doesn't exist return the key.
return key.ToString();
}
set
{
_localeStrings[key] = value;
OnPropertyChanged();
}
}
public bool IsRTL()
{
return _localeLanguageCode switch
{
"ar_SA" or "he_IL" => true,
_ => false
};
}
public string UpdateAndGetDynamicValue(LocaleKeys key, params object[] values)
{
_dynamicValues[key] = values;
OnPropertyChanged("Item");
return this[key];
}
private void LoadDefaultLanguage()
{
_localeDefaultStrings = LoadJsonLanguage(DefaultLanguageCode);
}
public void LoadLanguage(string languageCode)
{
var locale = LoadJsonLanguage(languageCode);
if (locale == null)
{
_localeLanguageCode = DefaultLanguageCode;
locale = _localeDefaultStrings;
}
else
{
_localeLanguageCode = languageCode;
}
foreach (var item in locale)
{
_localeStrings[item.Key] = item.Value;
}
OnPropertyChanged("Item");
LocaleChanged?.Invoke();
}
private static Dictionary<LocaleKeys, string> LoadJsonLanguage(string languageCode)
{
var localeStrings = new Dictionary<LocaleKeys, string>();
string languageJson = EmbeddedResources.ReadAllText($"Ryujinx/Assets/Locales/{languageCode}.json");
if (languageJson == null)
{
// We were unable to find file for that language code.
return null;
}
var strings = JsonHelper.Deserialize(languageJson, CommonJsonContext.Default.StringDictionary);
foreach (var item in strings)
{
if (Enum.TryParse<LocaleKeys>(item.Key, out var key))
{
localeStrings[key] = item.Value;
}
}
return localeStrings;
}
}
}
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