i18n: complete all non-English locale catalogs

web/tests/locale-coverage.spec.js

@@ -0,0 +1,52 @@
+import fs from 'node:fs';
+import path from 'node:path';
+
+const localeDir = path.resolve(__dirname, '../public/locales');
+const readCatalog = (code) => JSON.parse(fs.readFileSync(path.join(localeDir, `${code}.json`), 'utf8'));
+const manifest = JSON.parse(fs.readFileSync(path.join(localeDir, 'manifest.json'), 'utf8'));
+const english = readCatalog('en');
+const englishKeys = Object.keys(english);
+const englishKeySet = new Set(englishKeys);
+const placeholders = (value) => [...value.matchAll(/\{[^{}]+\}/g)].map(([token]) => token).sort();
+const markup = (value) => [...value.matchAll(/<[^>]+>/g)].map(([token]) => token).sort();
+const exampleUrls = (value) => [...value.matchAll(/(?:https?|rtsps?|rtmps?|s3):\/\/[A-Za-z0-9_@.:/…-]+/g)].map(([url]) => url.replace(/\.$/, ''));
+const protocolNames = ['LightNVR', 'lightNVR', 'go2rtc', 'ONVIF', 'RTSP', 'WebRTC', 'HLS', 'MSE', 'MQTT', 'S3', 'PTZ', 'ePTZ', 'TOTP'];
+const shortcutNames = ['Alt', 'Ctrl/Cmd', 'Shift', 'Enter', 'Escape'];
+const shortcutKeys = new Set([
+  'live.plan.sketch.hint.select',
+  'live.plan.sketch.hint.wall',
+  'live.plan.sketch.hint.area',
+  'timeline.help.zoomControls',
+  'timeline.help.panControls',
+  'timeline.inlineHint',
+]);
+
+describe('locale catalog coverage', () => {
+  for (const { code } of manifest.locales) {
+    if (code === 'en') continue;
+
+    test(`${code} has valid keys and preserved literals`, () => {
+      const catalog = readCatalog(code);
+      const missing = englishKeys.filter((key) => !(key in catalog));
+      const orphans = Object.keys(catalog).filter((key) => !englishKeySet.has(key));
+      const invalid = Object.entries(catalog).flatMap(([key, value]) => {
+        if (typeof value !== 'string' || !value.trim()) return [key];
+        if (/__\s*P\d+\s*__/i.test(value)) return [key];
+        if (!englishKeySet.has(key)) return [];
+        if (JSON.stringify(placeholders(value)) !== JSON.stringify(placeholders(english[key]))) return [key];
+        if (JSON.stringify(markup(value)) !== JSON.stringify(markup(english[key]))) return [key];
+        if (exampleUrls(english[key]).some((url) => !value.includes(url))) return [key];
+        if (shortcutKeys.has(key) && shortcutNames.some((name) => english[key].includes(name) && !value.includes(name))) return [key];
+        return protocolNames.some((name) => english[key].includes(name)
+          && !value.includes(name)
+          && !(name === 'lightNVR' && value.includes('LightNVR'))) ? [key] : [];
+      });
+
+      const coverage = ((englishKeys.length - missing.length) / englishKeys.length * 100).toFixed(1);
+      console.info(`${code}: ${coverage}% coverage (${missing.length} missing keys)`);
+      if (missing.length) console.warn(`${code} missing ${missing.length} English keys`);
+      expect(orphans).toEqual([]);
+      expect(invalid).toEqual([]);
+    });
+  }
+});