using System; using System.Collections.Generic; using System.Linq; using StardewValley; namespace StardewModdingAPI.Framework { /// Encapsulates access to arbitrary translations. Translations are fetched with locale fallback, so missing translations are filled in from broader locales (like pt-BR.json < pt.json < default.json). internal class Translator { /********* ** Fields *********/ /// The translations for each locale. private readonly IDictionary> All = new Dictionary>(StringComparer.OrdinalIgnoreCase); /// The translations for the current locale, with locale fallback taken into account. private IDictionary ForLocale; /********* ** Accessors *********/ /// The current locale. public string Locale { get; private set; } /// The game's current language code. public LocalizedContentManager.LanguageCode LocaleEnum { get; private set; } /********* ** Public methods *********/ /// Construct an instance. public Translator() { this.SetLocale(string.Empty, LocalizedContentManager.LanguageCode.en); } /// Set the current locale and precache translations. /// The current locale. /// The game's current language code. public void SetLocale(string locale, LocalizedContentManager.LanguageCode localeEnum) { this.Locale = locale.ToLower().Trim(); this.LocaleEnum = localeEnum; this.ForLocale = new Dictionary(StringComparer.OrdinalIgnoreCase); foreach (string next in this.GetRelevantLocales(this.Locale)) { // skip if locale not defined if (!this.All.TryGetValue(next, out IDictionary translations)) continue; // add missing translations foreach (var pair in translations) { if (!this.ForLocale.ContainsKey(pair.Key)) this.ForLocale.Add(pair.Key, new Translation(this.Locale, pair.Key, pair.Value)); } } } /// Get all translations for the current locale. public IEnumerable GetTranslations() { return this.ForLocale.Values.ToArray(); } /// Get a translation for the current locale. /// The translation key. public Translation Get(string key) { this.ForLocale.TryGetValue(key, out Translation translation); return translation ?? new Translation(this.Locale, key, null); } /// Get a translation for the current locale. /// The translation key. /// An object containing token key/value pairs. This can be an anonymous object (like new { value = 42, name = "Cranberries" }), a dictionary, or a class instance. public Translation Get(string key, object tokens) { return this.Get(key).Tokens(tokens); } /// Set the translations to use. /// The translations to use. internal Translator SetTranslations(IDictionary> translations) { // reset translations this.All.Clear(); foreach (var pair in translations) this.All[pair.Key] = new Dictionary(pair.Value, StringComparer.OrdinalIgnoreCase); // rebuild cache this.SetLocale(this.Locale, this.LocaleEnum); return this; } /********* ** Private methods *********/ /// Get the locales which can provide translations for the given locale, in precedence order. /// The locale for which to find valid locales. private IEnumerable GetRelevantLocales(string locale) { // given locale yield return locale; // broader locales (like pt-BR => pt) while (true) { int dashIndex = locale.LastIndexOf('-'); if (dashIndex <= 0) break; locale = locale.Substring(0, dashIndex); yield return locale; } // default if (locale != "default") yield return "default"; } } }