import type { CatalogFormatter, CatalogType } from "@lingui/conf";
import { defineConfig } from "@lingui/conf";
import { formatter } from "@lingui/format-po";

// File references without line numbers, so catalogs change only when messages change.
const po = formatter({ lineNumbers: false });
const collator = new Intl.Collator("en-US");

// Lingui orders entries by source text but leaves ties (explicit ids, equal text) in the order the
// files were found, which differs between file systems. Break ties by id so output is stable.
function sortCatalog(catalog: CatalogType): CatalogType {
  return Object.fromEntries(
    Object.entries(catalog).sort(
      ([aId, a], [bId, b]) =>
        collator.compare(a.message ?? aId, b.message ?? bId) ||
        collator.compare(a.context ?? "", b.context ?? "") ||
        (aId < bId ? -1 : aId > bId ? 1 : 0),
    ),
  );
}

const stablePo: CatalogFormatter = {
  ...po,
  serialize: (catalog, ctx) => po.serialize(sortCatalog(catalog), ctx),
};

export default defineConfig({
  sourceLocale: "en",
  locales: ["en", "de", "ko", "tr", "hi", "pt-BR", "zh-CN", "es", "ru"],
  catalogs: [
    {
      path: "<rootDir>/src/locales/{locale}/messages",
      include: ["src"],
      exclude: ["**/locales/**", "**/*.test.*"],
    },
  ],
  format: stablePo,
  compileNamespace: "es",
});