init commit for iPAL-kit plugin

src/modules/i18n/helpers.ts

@@ -0,0 +1,32 @@
+import type { I18nConfig, LocaleDefinition } from './types.js'
+
+/**
+ * Returns all configured locale codes.
+ */
+export function getLocaleCodes(config: I18nConfig): string[] {
+  return config.locales.map((locale) => locale.code)
+}
+
+/**
+ * Returns the default locale code.
+ */
+export function getDefaultLocale(config: I18nConfig): string {
+  return config.defaultLocale
+}
+
+/**
+ * Checks if a string is a valid configured locale code.
+ */
+export function isValidLocale(code: string, config: I18nConfig): boolean {
+  return config.locales.some((locale) => locale.code === code)
+}
+
+/**
+ * Returns the full locale definition for a given code, or undefined if not found.
+ */
+export function getLocaleDefinition(
+  code: string,
+  config: I18nConfig,
+): LocaleDefinition | undefined {
+  return config.locales.find((locale) => locale.code === code)
+}