76 lines
2.2 KiB
Swift
76 lines
2.2 KiB
Swift
import Combine
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import Foundation
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@MainActor
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final class LocalizationStore: ObservableObject {
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@Published private(set) var localeCode: String
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private let bundle: Bundle
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private static let supportedLocaleCodes = ["en", "sv"]
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private static let fallbackLocaleCode = "en"
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init(bundle: Bundle? = nil, localeCode: String = Locale.preferredLanguages.first.map { String($0.prefix(2)) } ?? "en") {
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self.bundle = bundle ?? Self.defaultBundle
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self.localeCode = Self.normalize(localeCode)
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}
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func setLocale(_ localeCode: String) {
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self.localeCode = Self.normalize(localeCode)
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}
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func string(for key: String) -> String {
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string(for: key, localeCode: localeCode)
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}
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func string(for key: String, localeCode: String) -> String {
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guard let localizedBundle = localizedBundle(for: localeCode) else {
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return fallbackString(for: key, localeCode: localeCode)
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}
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let value = localizedBundle.localizedString(forKey: key, value: nil, table: nil)
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if value == key {
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return fallbackString(for: key, localeCode: localeCode)
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}
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return value
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}
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func localeName(for targetLocaleCode: String, displayLocaleCode: String? = nil) -> String {
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let key = Self.normalize(targetLocaleCode) == "sv" ? "locale_swedish" : "locale_english"
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return string(for: key, localeCode: displayLocaleCode ?? localeCode)
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}
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private func fallbackString(for key: String, localeCode: String) -> String {
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guard localeCode != Self.fallbackLocaleCode else {
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return key
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}
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return string(for: key, localeCode: Self.fallbackLocaleCode)
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}
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private func localizedBundle(for localeCode: String) -> Bundle? {
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guard let path = bundle.path(forResource: localeCode, ofType: "lproj") else {
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return nil
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}
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return Bundle(path: path)
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}
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private static func normalize(_ localeCode: String) -> String {
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guard supportedLocaleCodes.contains(localeCode) else {
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return fallbackLocaleCode
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}
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return localeCode
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}
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private static var defaultBundle: Bundle {
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#if SWIFT_PACKAGE
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.module
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#else
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.main
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#endif
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}
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}
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