client: improve "postextract-i18n" script (#624)

client/package.json

@@ -11,7 +11,7 @@
     "post-build": "cp src/404.html dist/client/browser/404.html",
     "watch": "ng build --watch --configuration development",
     "extract-i18n": "ng extract-i18n --format json --output-path src/locales/ --out-file messages.fr.json",
-    "postextract-i18n": "node src/locales/sort-messages-fr-translations.js",
+    "postextract-i18n": "node src/locales/check-messages-translations.js",
     "test": "jest",
     "lint": "ng lint --fix",
     "lint:ci": "ng lint",

client/src/locales/check-messages-translations.js

@@ -0,0 +1,57 @@
+const { readFile, writeFile } = require('node:fs/promises');
+const { join } = require('node:path');
+
+const consolidateMessagesTranslations = async (fileName, addKeys = [], removeKeys = []) => {
+  const messagesPath = join(__dirname, fileName);
+  const messages = JSON.parse(await readFile(messagesPath, 'utf8'));
+
+  addKeys.forEach((key) => (messages.translations[key] = ''));
+  removeKeys.forEach((key) => delete messages.translations[key]);
+
+  const sortedTranslationEntries = Object.entries(messages.translations).sort(([a], [b]) =>
+    a > b ? 1 : a < b ? -1 : 0,
+  );
+  messages.translations = sortedTranslationEntries.reduce((translations, [sortedKey, value]) => {
+    translations[sortedKey] = value;
+    return translations;
+  }, {});
+
+  await writeFile(messagesPath, JSON.stringify(messages, undefined, 2) + '\n', 'utf8');
+};
+
+const compareMessagesTranslations = async () => {
+  const frenchMessages = new Set(
+    Object.keys(JSON.parse(await readFile(join(__dirname, 'messages.fr.json'), 'utf8')).translations),
+  );
+  const englishMessages = new Set(
+    Object.keys(JSON.parse(await readFile(join(__dirname, 'messages.en.json'), 'utf8')).translations),
+  );
+
+  const englishMissingKeys = [];
+  frenchMessages.forEach((key) => englishMessages.has(key) || englishMissingKeys.push(key));
+
+  const englishUselessKeys = [];
+  englishMessages.forEach((key) => frenchMessages.has(key) || englishUselessKeys.push(key));
+
+  if (englishMissingKeys.length || englishUselessKeys.length) {
+    console.warn(
+      '\nWarning:\n\tEnglish messages (messages.en.json) not aligned with French messages (messages.fr.json):',
+    );
+    if (englishMissingKeys.length) {
+      console.warn('Missing keys:', englishMissingKeys);
+    }
+    if (englishUselessKeys.length) {
+      console.warn('Useless keys:', englishUselessKeys);
+    }
+  }
+
+  await consolidateMessagesTranslations('messages.en.json', englishMissingKeys, englishUselessKeys);
+};
+
+const run = async () => {
+  await consolidateMessagesTranslations('messages.fr.json');
+
+  await compareMessagesTranslations();
+};
+
+run();