# QA Report: i18n Implementation

**Date:** December 19, 2025
**Agent:** QA_Security
**Status:** ⚠️ PARTIAL PASS

---

## Executive Summary

The i18n (internationalization) implementation has been evaluated for quality assurance. The core implementation is functional with all 5 translation files validated as proper JSON. However, there are test failures that need attention before the feature is considered production-ready.

---

## 1. Translation Files Validation ✅ PASS

All 5 locale files are valid JSON with complete translation coverage:

| Locale | File Path | Status |
|--------|-----------|--------|
| English (en) | `frontend/src/locales/en/translation.json` | ✅ Valid JSON |
| Spanish (es) | `frontend/src/locales/es/translation.json` | ✅ Valid JSON |
| French (fr) | `frontend/src/locales/fr/translation.json` | ✅ Valid JSON |
| German (de) | `frontend/src/locales/de/translation.json` | ✅ Valid JSON |
| Chinese (zh) | `frontend/src/locales/zh/translation.json` | ✅ Valid JSON |

**Key Translation Namespaces:**

- `common` - Shared UI elements
- `navigation` - Sidebar and menu items
- `dashboard` - Dashboard components
- `proxyHosts` - Proxy host management
- `certificates` - SSL certificate management
- `security` - Security features (Cerberus, CrowdSec, WAF)
- `accessLists` - ACL management
- `rateLimiting` - Rate limiting configuration
- `wafConfig` - WAF configuration
- `crowdsecConfig` - CrowdSec configuration
- `systemSettings` - System settings
- `account` - Account management
- `auth` - Authentication
- `users` - User management
- `backups` - Backup management
- `logs` - Log viewing
- `smtp` - SMTP configuration
- `securityHeaders` - Security headers

---

## 2. TypeScript Type Check ✅ PASS

```
✅ Zero TypeScript errors
Command: cd frontend && npm run type-check
Result: PASS
```

---

## 3. Pre-commit Hooks ✅ PASS

All pre-commit hooks pass after auto-fixes:

| Hook | Status |
|------|--------|
| fix end of files | ✅ Passed |
| trim trailing whitespace | ✅ Passed |
| check yaml | ✅ Passed |
| check for added large files | ✅ Passed |
| dockerfile validation | ✅ Passed |
| Go Vet | ✅ Passed |
| Check .version matches latest Git tag | ✅ Passed |
| Prevent large files not tracked by LFS | ✅ Passed |
| Prevent committing CodeQL DB artifacts | ✅ Passed |
| Prevent committing data/backups files | ✅ Passed |
| Frontend TypeScript Check | ✅ Passed |
| Frontend Lint (Fix) | ✅ Passed |

**Note:** Auto-fixes were applied to:

- `docs/plans/current_spec.md` (trailing whitespace, end of file)
- `frontend/src/pages/SecurityHeaders.tsx` (trailing whitespace)

---

## 4. ESLint ✅ PASS (with warnings)

```
✅ Zero ESLint errors
⚠️ 40 warnings (acceptable)
Command: cd frontend && npm run lint
Result: PASS
```

**Warning Categories (40 total):**

- `@typescript-eslint/no-explicit-any` - 35 warnings (in test files)
- `react-hooks/exhaustive-deps` - 2 warnings
- `react-refresh/only-export-components` - 2 warnings
- `@typescript-eslint/no-unused-vars` - 1 warning

These warnings are in test files and non-critical code paths.

---

## 5. Backend Coverage ⚠️ NEAR TARGET

```
Total Coverage: 84.6%
Target: 85%
Status: ⚠️ Slightly below target (0.4% gap)
```

**Package Breakdown:**

| Package | Coverage |
|---------|----------|
| middleware | 99.0% |
| cerberus | 100.0% |
| metrics | 100.0% |
| util | 100.0% |
| version | 100.0% |
| caddy | 98.9% |
| models | 98.1% |
| config | 91.7% |
| database | 91.3% |
| server | 90.9% |
| logger | 85.7% |
| services | 84.9% |
| crowdsec | 83.3% |
| handlers | 82.3% |
| routes | 82.8% |

---

## 6. Frontend Tests ❌ FAIL

```
Tests: 272 failed | 857 passed | 2 skipped (1131 total)
Test Files: 34 failed | 72 passed (106 total)
Status: ❌ FAIL
```

### Root Cause Analysis

The test failures are primarily due to **i18n string matching issues**. The tests were written to match hardcoded English strings, but now that i18n is implemented, the tests need to be updated to either:

1. Mock the i18n library to return English translations
2. Update tests to use translation keys
3. Configure the test environment with the English locale

### Affected Test Files

- `WafConfig.spec.tsx` - 19 failures
- Multiple other test files with similar i18n-related failures

### Example Failure

```tsx
// Test expects:
expect(screen.getByText('Choose a preset...')).toBeInTheDocument()

// But receives translation key: 'wafConfig.choosePreset'
```

---

## 7. Security Scan (Trivy)

**Status:** Not executed due to time constraints (test failures require attention first)

---

## Recommendations

### Critical (Must Fix Before Merge)

1. **Update Test Setup for i18n**
   - Add i18n mock to `frontend/src/test/setup.ts`
   - Configure test environment to use English translations
   - Example fix:

   ```typescript
   import i18n from '../i18n'

   vi.mock('react-i18next', () => ({
     useTranslation: () => ({
       t: (key: string) => key,
       i18n: { language: 'en' }
     })
   }))
   ```

2. **Fix WafConfig Tests**
   - Update string assertions to match i18n implementation
   - Either use translation keys or mocked translations

### Recommended (Post-Merge)

1. **Improve Backend Coverage to 85%+**
   - Current: 84.6%
   - Add tests for edge cases in `handlers` and `crowdsec` packages

2. **Address ESLint Warnings**
   - Replace `any` types with proper TypeScript types in test files
   - Fix `react-hooks/exhaustive-deps` warnings

3. **Run Trivy Security Scan**
   - Execute after test fixes to ensure no security regressions

---

## Conclusion

The i18n implementation is **structurally complete** with all translation files properly formatted and containing comprehensive translations for all 5 supported languages. The core functionality is working, but **frontend test suite updates are required** to accommodate the new i18n integration before this can be considered production-ready.

**Overall Status:** ⚠️ **BLOCKED** - Pending test fixes

---

## Checklist

- [x] Translation files validation (5/5 valid JSON)
- [x] TypeScript type checking (0 errors)
- [x] Pre-commit hooks (all passing)
- [x] ESLint (0 errors, 40 warnings acceptable)
- [x] Backend coverage (84.6% - near 85% target)
- [ ] Frontend tests (272 failures - requires i18n test setup)
- [ ] Security scan (not executed)
