Add Scandinavian i18n (da/sv/nb) via DeepL pipeline.

Integrate new locale bundles, language cycling in the UI, SEO hreflang tags, and localized beta flyer HTML variants with scripts for batch translation and key validation. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-31 15:53:43 +02:00
parent 2e656dc6b2
commit 3749f87c1d
30 changed files with 3975 additions and 42 deletions
@@ -0,0 +1,99 @@
+#!/usr/bin/env node
+/**
+ * Translate i18n locale JSON from German master via DeepL.
+ *
+ * Usage:
+ *   node scripts/translate-locales.mjs [--lang da,sv,nb] [--source client/src/i18n/locales/de.json]
+ */
+
+import { readFile, writeFile } from 'node:fs/promises'
+import { resolve, dirname } from 'node:path'
+import { fileURLToPath } from 'node:url'
+import {
+  flattenTranslation,
+  loadEnvKey,
+  translateTexts,
+  unflattenTranslation
+} from './lib/deepl-translate.mjs'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+const repoRoot = resolve(__dirname, '..')
+const defaultSource = resolve(repoRoot, 'client/src/i18n/locales/de.json')
+
+const TARGETS = {
+  da: 'DA',
+  sv: 'SV',
+  nb: 'NB'
+}
+
+/** Keys whose values stay identical to source (language names, brand). */
+const COPY_AS_IS_PREFIXES = ['languages.', 'app.name']
+
+function parseArgs(argv) {
+  let langs = Object.keys(TARGETS)
+  let sourcePath = defaultSource
+
+  for (let i = 2; i < argv.length; i++) {
+    if (argv[i] === '--lang' && argv[i + 1]) {
+      langs = argv[++i].split(',').map((l) => l.trim())
+    } else if (argv[i] === '--source' && argv[i + 1]) {
+      sourcePath = resolve(repoRoot, argv[++i])
+    }
+  }
+
+  return { langs, sourcePath }
+}
+
+function shouldCopyAsIs(path) {
+  return COPY_AS_IS_PREFIXES.some((prefix) => path === prefix || path.startsWith(prefix))
+}
+
+async function translateLocale(sourceJson, langCode, apiKey) {
+  const entries = flattenTranslation(sourceJson.translation)
+  const toTranslate = []
+  const indices = []
+
+  entries.forEach(([path, value], index) => {
+    if (shouldCopyAsIs(path)) return
+    toTranslate.push(value)
+    indices.push(index)
+  })
+
+  console.log(`Translating ${toTranslate.length} strings to ${langCode.toUpperCase()}…`)
+  const translated = await translateTexts(toTranslate, TARGETS[langCode], {
+    sourceLang: 'DE',
+    apiKey
+  })
+
+  const resultEntries = [...entries]
+  indices.forEach((entryIndex, i) => {
+    resultEntries[entryIndex][1] = translated[i]
+  })
+
+  return { translation: unflattenTranslation(resultEntries) }
+}
+
+async function main() {
+  const { langs, sourcePath } = parseArgs(process.argv)
+  const apiKey = loadEnvKey()
+  const sourceRaw = await readFile(sourcePath, 'utf8')
+  const sourceJson = JSON.parse(sourceRaw)
+
+  for (const lang of langs) {
+    if (!TARGETS[lang]) {
+      console.error(`Unknown language: ${lang}`)
+      process.exit(1)
+    }
+
+    const outPath = resolve(repoRoot, `client/src/i18n/locales/${lang}.json`)
+    console.log(`\n→ ${lang}.json`)
+    const translated = await translateLocale(sourceJson, lang, apiKey)
+    await writeFile(outPath, `${JSON.stringify(translated, null, 2)}\n`, 'utf8')
+    console.log(`Wrote ${outPath}`)
+  }
+}
+
+main().catch((err) => {
+  console.error(err.message ?? err)
+  process.exit(1)
+})