add getCurrentLocale and compose translation

language_codes/src/commonMain/kotlin/dev/inmo/micro_utils/language_codes/CurrentIetfLang.kt

@@ -0,0 +1,3 @@
+package dev.inmo.micro_utils.language_codes
+
+expect val currentIetfLang: IetfLang?

language_codes/src/jsMain/kotlin/CurrentIetfLang.js.kt

@@ -0,0 +1,6 @@
+package dev.inmo.micro_utils.language_codes
+
+import kotlinx.browser.window
+
+actual val currentIetfLang: IetfLang?
+    get() = window.navigator.language.unsafeCast<String?>() ?.let { IetfLang(it) }

language_codes/src/jvmMain/kotlin/CurrentIetfLang.jvm.kt

@@ -0,0 +1,6 @@
+package dev.inmo.micro_utils.language_codes
+
+import java.util.Locale
+
+actual val currentIetfLang: IetfLang?
+    get() = Locale.getDefault() ?.toIetfLang()

language_codes/src/mingwX64Main/kotlin/CurrentIetfLang.mingwX64.kt

@@ -0,0 +1,27 @@
+package dev.inmo.micro_utils.language_codes
+
+import dev.inmo.micro_utils.language_codes.IetfLang
+import kotlinx.cinterop.ExperimentalForeignApi
+import kotlinx.cinterop.allocArray
+import kotlinx.cinterop.memScoped
+import kotlinx.cinterop.toKString
+import platform.posix.getenv
+import platform.windows.GetUserDefaultLocaleName
+import platform.windows.LOCALE_NAME_MAX_LENGTH
+import platform.windows.WCHARVar
+
+@OptIn(ExperimentalForeignApi::class)
+actual val currentIetfLang: IetfLang?
+    get() {
+        val rawLocale = memScoped {
+            val buffer = allocArray<WCHARVar>(LOCALE_NAME_MAX_LENGTH)
+            val result = GetUserDefaultLocaleName(buffer, LOCALE_NAME_MAX_LENGTH)
+
+            if (result > 0) {
+                // Convert WCHAR* to String
+                buffer.toKString()
+            }
+            "en-US" // fallback
+        }
+        return IetfLang(rawLocale)
+    }

language_codes/src/nativeMain/kotlin/CurrentIetfLang.native.kt

@@ -0,0 +1,12 @@
+package dev.inmo.micro_utils.language_codes
+
+import kotlinx.cinterop.ExperimentalForeignApi
+import kotlinx.cinterop.toKString
+import platform.posix.getenv
+
+@OptIn(ExperimentalForeignApi::class)
+actual val currentIetfLang: IetfLang?
+    get() {
+        val localeStr = getenv("LANG") ?.toKString() ?.replace("_", "-") ?: "en-US"
+        return IetfLang(localeStr)
+    }

language_codes/src/wasmJsMain/kotlin/CurrentIetfLang.wasmJs.kt

@@ -0,0 +1,10 @@
+package dev.inmo.micro_utils.language_codes
+
+external interface Navigator {
+    val language: String
+}
+
+external val navigator: Navigator
+
+actual val currentIetfLang: IetfLang?
+    get() = IetfLang(navigator.language)