Kobweb Localization

Localization.kt

object Localization {
    private const val LANGUAGE_KEY = "language"

    var currentLanguage by mutableStateOf(
        value = Language.valueOf(
            value = window.localStorage[LANGUAGE_KEY] ?: Language.Serbian.name
        )
    )

    fun updateLanguage(value: Language, company: Company? = null) {
        currentLanguage = value
        window.localStorage[LANGUAGE_KEY] = currentLanguage.name
        company?.let { generateCompanyMetadata(company = it) } ?: generateDefaultMetadata()
    }

    object Key {
        val not_selected = "not_selected"
        val choose_appointment = "choose_appointment"
        val schedule_appointment = "schedule_appointment"
        val error_while_resolving_short_code = "error_while_resolving_short_code"
    }

    // You can store translations in a nested map
    private val translations = mapOf(
        Language.Serbian to mapOf(
            Key.not_selected to "Nije odabrano",
            Key.choose_appointment to "Odaberi termin",
            Key.schedule_appointment to "Rezerviši termin",
            Key.error_while_resolving_short_code to "Greška prilikom čitanja: {0}"
        ),
        Language.Russian to mapOf(
            Key.not_selected to "Не выбрано",
            Key.choose_appointment to "Выберите запись",
            Key.schedule_appointment to "Запланировать запись",
            Key.error_while_resolving_short_code to "Ошибка при разрешении короткого кода: {0}",
        )
    )

    // Retrieve translation by key
    fun text(key: String): String {
        return translations[currentLanguage]?.get(key)
            ?: "[$key]" // show missing key if not found
    }

    fun text(key: String, vararg args: Any): String {
        val template = translations[currentLanguage]?.get(key) ?: "[$key]"
        return args.foldIndexed(template) { index, acc, arg ->
            acc.replace("{$index}", arg.toString())
        }
    }

}

enum class Language(
    val flag: String,
    val title: String,
) {
    Serbian(
        flag = "country/RS.svg",
        title = "Srpski"
    ),
    Russian(
        flag = "country/RU.svg",
        title = "Русский",
    ),
}