import Foundation
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// MARK: - Localization Manager
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enum L10n {
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static var current: [String: String] = [:]
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private(set) static var currentCode = "en"
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/// Call once at startup to load the saved or system language.
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static func setup() {
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let code = UserDefaults.standard.string(forKey: "appLanguage") ?? fallbackCode()
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load(code)
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}
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static let supported: [(code: String, name: String)] = [
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("en", "English"),
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("zh-Hans", "简体中文"),
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("zh-Hant", "繁體中文"),
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("ja", "日本語"),
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("ko", "한국어"),
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("ru", "Русский"),
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("fr", "Français"),
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("it", "Italiano"),
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("es", "Español"),
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]
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static func switchTo(_ code: String) {
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load(code)
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UserDefaults.standard.set(code, forKey: "appLanguage")
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}
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private static func load(_ code: String) {
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guard let url = Bundle.main.url(
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forResource: code, withExtension: "json",
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subdirectory: "Localization"
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) else {
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if code != "en" { load("en") }
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return
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}
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guard let data = try? Data(contentsOf: url),
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let dict = try? JSONSerialization.jsonObject(with: data) as? [String: String]
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else { return }
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current = dict
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currentCode = code
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}
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private static func fallbackCode() -> String {
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let lang = Locale.preferredLanguages.first ?? "en"
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if lang.hasPrefix("zh-Hant") || lang.hasPrefix("zh-HK") || lang.hasPrefix("zh-TW") { return "zh-Hant" }
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if lang.hasPrefix("zh") { return "zh-Hans" }
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if lang.hasPrefix("ja") { return "ja" }
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if lang.hasPrefix("ko") { return "ko" }
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if lang.hasPrefix("ru") { return "ru" }
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if lang.hasPrefix("fr") { return "fr" }
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if lang.hasPrefix("it") { return "it" }
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if lang.hasPrefix("es") { return "es" }
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return "en"
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}
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}
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/// Convenience function — use `tr("key")` everywhere.
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func tr(_ key: String) -> String {
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L10n.current[key] ?? key
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}
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