Init Commit

src/main/kotlin/app/termora/I18n.kt

@@ -0,0 +1,57 @@
+package app.termora
+
+import org.apache.commons.lang3.LocaleUtils
+import org.apache.commons.text.StringSubstitutor
+import org.slf4j.LoggerFactory
+import java.text.MessageFormat
+import java.util.*
+
+object I18n {
+    private val log = LoggerFactory.getLogger(I18n::class.java)
+    private val bundle by lazy {
+        val bundle = ResourceBundle.getBundle("i18n/messages", Locale.getDefault())
+        if (log.isInfoEnabled) {
+            log.info("I18n: {}", bundle.baseBundleName ?: "null")
+        }
+        return@lazy bundle
+    }
+
+    private val substitutor by lazy { StringSubstitutor { key -> getString(key) } }
+    private val supportedLanguages = sortedMapOf(
+        "en_US" to "English",
+        "zh_CN" to "简体中文",
+        "zh_TW" to "繁體中文",
+    )
+
+    fun containsLanguage(locale: Locale): String? {
+        for (key in supportedLanguages.keys) {
+            val e = LocaleUtils.toLocale(key)
+            if (LocaleUtils.toLocale(key) == locale ||
+                (e.language.equals(locale.language, true) && e.country.equals(locale.country, true))
+            ) {
+                return key
+            }
+        }
+        return null
+    }
+
+    fun getLanguages(): Map<String, String> {
+        return supportedLanguages
+    }
+
+    fun getString(key: String, vararg args: Any): String {
+        try {
+            val text = substitutor.replace(bundle.getString(key))
+            if (args.isNotEmpty()) {
+                return MessageFormat.format(text, *args)
+            }
+            return text
+        } catch (e: MissingResourceException) {
+            if (log.isWarnEnabled) {
+                log.warn(e.message, e)
+            }
+            return key
+        }
+    }
+
+}