import type { ProjectSettings } from "../../json-schema/settings.js";

/**
 * Change introduced in v2.
 *
 * The sourceLanguageTag and languageTags are now deprecated
 * in favor of baseLocale and locales.
 */
export function withLanguageTagToLocaleMigration(
	settings: ProjectSettings
): ProjectSettings {
	if (settings.sourceLanguageTag === undefined) {
		settings.sourceLanguageTag = settings.baseLocale;
	}
	if (settings.languageTags === undefined) {
		settings.languageTags = settings.locales;
	}
	if (settings.baseLocale === undefined) {
		settings.baseLocale = settings.sourceLanguageTag;
	}
	if (settings.locales === undefined) {
		settings.locales = settings.languageTags;
	}
	if (settings.sourceLanguageTag !== settings.baseLocale) {
		settings.sourceLanguageTag = settings.baseLocale;
	}
	if (settings.languageTags !== settings.locales) {
		settings.languageTags = settings.locales;
	}
	return settings;
}