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package com.drivergrp.core
import java.util.Locale
import com.drivergrp.core.logging.Logger
import com.typesafe.config.Config
import scala.collection.JavaConverters._
/**
* Scala internationalization (i18n) support
*/
object messages {
object Messages {
def messages(config: Config, log: Logger, locale: Locale = Locale.US): Messages = {
val map = config.getConfig(locale.getLanguage).root().unwrapped().asScala.mapValues(_.toString).toMap
Messages(map, locale, log)
}
}
case class Messages(map: Map[String, String], locale: Locale, log: Logger) {
/**
* Returns message for the key
*
* @param key key
* @return message
*/
def apply(key: String): String = {
map.get(key) match {
case Some(message) => message
case None =>
log.error(s"Message with key $key not found for locale " + locale.getDisplayName)
key
}
}
/**
* Returns message for the key and formats that with parameters
*
* @example "Hello {0}!" with "Joe" will be "Hello Joe!"
*
* @param key key
* @param params params to be embedded
* @return formatted message
*/
def apply(key: String, params: Any*): String = {
def format(formatString: String, params: Seq[Any]) =
params.zipWithIndex.foldLeft(formatString) {
case (res, (value, index)) => res.replace(s"{$index}", value.toString)
}
val template = apply(key)
format(template, params)
}
}
}
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