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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** @license For full copyright and license information, please see the LICENSE.md file. */ |
| 6 | |
| 7 | namespace App\Core\Translation; |
| 8 | |
| 9 | defined('AMMONLY_APP') || exit('Direct script access is forbidden.'); |
| 10 | |
| 11 | use App\Core\Api\ApiClientInterface; |
| 12 | use App\Core\Translation\Presentation\Api\TranslationApiController; |
| 13 | use Throwable; |
| 14 | use Yiisoft\Translator\MessageReaderInterface; |
| 15 | |
| 16 | /** |
| 17 | * High-Performance API & Cached Message Source. |
| 18 | * |
| 19 | * Implements Yii3 MessageReaderInterface consuming REST API /api/v1/translations |
| 20 | * with layered fallback resolution, OPcache file compilation, and instant cache invalidation. |
| 21 | * |
| 22 | * @package App\Core\Translation |
| 23 | */ |
| 24 | final class DatabaseMessageSource implements MessageReaderInterface |
| 25 | { |
| 26 | /** @var array<string, array<string, array<string, string>>> In-memory category messages cache. */ |
| 27 | private array $memoryCache = []; |
| 28 | |
| 29 | /** |
| 30 | * DatabaseMessageSource constructor. |
| 31 | * |
| 32 | * @param TranslationApiController|ApiClientInterface $apiSource API Controller or ApiClient instance. |
| 33 | * @param string $cacheDir Directory path for compiled translation files. |
| 34 | */ |
| 35 | public function __construct( |
| 36 | private readonly TranslationApiController|ApiClientInterface $apiSource, |
| 37 | private readonly string $cacheDir |
| 38 | ) { |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * {@inheritdoc} |
| 43 | */ |
| 44 | public function getMessage(string $id, string $category, string $locale, array $parameters = []): ?string |
| 45 | { |
| 46 | $resolved = $this->resolveRawMessage($id, $category, $locale); |
| 47 | if ($resolved !== null) { |
| 48 | return $this->formatMessage($resolved, $parameters); |
| 49 | } |
| 50 | |
| 51 | return null; |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Resolves raw unformatted message string using layered fallback mechanism. |
| 56 | * |
| 57 | * @param string $id Message key ID. |
| 58 | * @param string $category Message category. |
| 59 | * @param string $locale Locale code. |
| 60 | * @return string|null Raw translation string or null. |
| 61 | */ |
| 62 | private function resolveRawMessage(string $id, string $category, string $locale): ?string |
| 63 | { |
| 64 | $resolved = $this->lookupInCurrentOrSubCategory($id, $category, $locale); |
| 65 | if ($resolved !== null) { |
| 66 | return $resolved; |
| 67 | } |
| 68 | |
| 69 | $fallback = $this->resolveFallbackCategories($id, $category, $locale); |
| 70 | if ($fallback !== null) { |
| 71 | return $fallback; |
| 72 | } |
| 73 | |
| 74 | return $locale !== 'en' ? $this->lookupInCurrentOrSubCategory($id, $category, 'en') : null; |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Looks up message in current category or derived prefix category for dot-notated keys. |
| 79 | * |
| 80 | * @param string $id Message key. |
| 81 | * @param string $category Message category. |
| 82 | * @param string $locale Locale code. |
| 83 | * @return string|null Raw message string or null. |
| 84 | */ |
| 85 | private function lookupInCurrentOrSubCategory(string $id, string $category, string $locale): ?string |
| 86 | { |
| 87 | $messages = $this->getMessages($category, $locale); |
| 88 | $candidateKeys = [ |
| 89 | $id, |
| 90 | strtolower($id), |
| 91 | str_replace(' ', '_', strtolower($id)), |
| 92 | strtolower(str_replace('_', ' ', $id)), |
| 93 | ucwords(str_replace('_', ' ', strtolower($id))), |
| 94 | ucfirst($id), |
| 95 | ]; |
| 96 | |
| 97 | foreach ($candidateKeys as $candidate) { |
| 98 | if (isset($messages[$candidate]['message'])) { |
| 99 | return $messages[$candidate]['message']; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | return str_contains($id, '.') |
| 104 | ? $this->lookupDotNotatedKey($id, $category, $locale, $messages) |
| 105 | : null; |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Looks up dot-notated sub-key in prefix category or current messages. |
| 110 | * |
| 111 | * @param string $id Message key with dots. |
| 112 | * @param string $category Current category. |
| 113 | * @param string $locale Target locale. |
| 114 | * @param array<string, array<string, string>> $messages Current category messages. |
| 115 | * @return string|null Resolved message or null. |
| 116 | */ |
| 117 | private function lookupDotNotatedKey( |
| 118 | string $id, |
| 119 | string $category, |
| 120 | string $locale, |
| 121 | array $messages |
| 122 | ): ?string { |
| 123 | $parts = explode('.', $id); |
| 124 | $prefix = $parts[0]; |
| 125 | $subKey = implode('.', array_slice($parts, 1)); |
| 126 | if ($prefix !== $category) { |
| 127 | $prefixMessages = $this->getMessages($prefix, $locale); |
| 128 | if (isset($prefixMessages[$subKey]['message'])) { |
| 129 | return $prefixMessages[$subKey]['message']; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | return $messages[$subKey]['message'] ?? null; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Resolves fallback categories for unregistered modules. |
| 138 | */ |
| 139 | private function resolveFallbackCategories(string $id, string $category, string $locale): ?string |
| 140 | { |
| 141 | if (in_array($category, ['app', 'field', 'action'], true)) { |
| 142 | return null; |
| 143 | } |
| 144 | |
| 145 | foreach (['field', 'action', 'app'] as $fallbackCategory) { |
| 146 | $fallback = $this->getMessages($fallbackCategory, $locale); |
| 147 | $candidateKeys = [ |
| 148 | $id, |
| 149 | strtolower($id), |
| 150 | str_replace(' ', '_', strtolower($id)), |
| 151 | ]; |
| 152 | foreach ($candidateKeys as $candidate) { |
| 153 | if (isset($fallback[$candidate]['message'])) { |
| 154 | return $fallback[$candidate]['message']; |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | return null; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * {@inheritdoc} |
| 164 | */ |
| 165 | public function getMessages(string $category, string $locale): array |
| 166 | { |
| 167 | $normalizedLocale = strtolower(trim($locale)); |
| 168 | $cacheKey = "{$normalizedLocale}:{$category}"; |
| 169 | |
| 170 | if (isset($this->memoryCache[$cacheKey])) { |
| 171 | return $this->memoryCache[$cacheKey]; |
| 172 | } |
| 173 | |
| 174 | $cachedData = $this->readCompiledCache($normalizedLocale, $category); |
| 175 | if ($cachedData !== null) { |
| 176 | $this->memoryCache[$cacheKey] = $cachedData; |
| 177 | return $cachedData; |
| 178 | } |
| 179 | |
| 180 | $messages = $this->loadFromApi($category, $normalizedLocale); |
| 181 | $this->writeCompiledCache($normalizedLocale, $category, $messages); |
| 182 | $this->memoryCache[$cacheKey] = $messages; |
| 183 | |
| 184 | return $messages; |
| 185 | } |
| 186 | |
| 187 | /** |
| 188 | * Invalidates compiled file cache and in-memory caches. |
| 189 | * |
| 190 | * @param string|null $locale Specific locale to invalidate or null for all. |
| 191 | * @param string|null $category Specific category to invalidate or null for all. |
| 192 | */ |
| 193 | public function invalidateCache(?string $locale = null, ?string $category = null): void |
| 194 | { |
| 195 | $this->memoryCache = []; |
| 196 | |
| 197 | if (!is_dir($this->cacheDir)) { |
| 198 | return; |
| 199 | } |
| 200 | |
| 201 | $pattern = $this->cacheDir . '/*.php'; |
| 202 | $files = glob($pattern) ?: []; |
| 203 | |
| 204 | foreach ($files as $file) { |
| 205 | $filename = basename($file, '.php'); |
| 206 | if ($locale !== null && !str_starts_with($filename, $locale . '_')) { |
| 207 | continue; |
| 208 | } |
| 209 | if ($category !== null) { |
| 210 | $sanitizedCat = str_replace('.', '_', $category); |
| 211 | if (!str_ends_with($filename, '_' . $sanitizedCat)) { |
| 212 | continue; |
| 213 | } |
| 214 | } |
| 215 | @unlink($file); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Loads translation messages for a category and locale from REST API. |
| 221 | * |
| 222 | * @param string $category Message category. |
| 223 | * @param string $locale Language code. |
| 224 | * @return array<string, array<string, string>> Messages map. |
| 225 | */ |
| 226 | private function loadFromApi(string $category, string $locale): array |
| 227 | { |
| 228 | if ($this->apiSource instanceof TranslationApiController) { |
| 229 | return $this->apiSource->fetchMessagesFromDb($category, $locale); |
| 230 | } |
| 231 | |
| 232 | $response = $this->apiSource->get('/api/v1/translations/' . $category, [ |
| 233 | 'locale' => $locale, |
| 234 | ]); |
| 235 | |
| 236 | return (array)($response['messages'] ?? []); |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Reads messages from compiled PHP cache file. |
| 241 | * |
| 242 | * @param string $locale Locale code. |
| 243 | * @param string $category Message category. |
| 244 | * @return array<string, array<string, string>>|null Cached messages or null. |
| 245 | */ |
| 246 | private function readCompiledCache(string $locale, string $category): ?array |
| 247 | { |
| 248 | $filePath = $this->getCacheFilePath($locale, $category); |
| 249 | if (!file_exists($filePath)) { |
| 250 | return null; |
| 251 | } |
| 252 | |
| 253 | try { |
| 254 | /** @var mixed $data */ |
| 255 | $data = (static function (string $f): mixed { |
| 256 | return require_once $f; |
| 257 | })($filePath); |
| 258 | return is_array($data) ? $data : null; |
| 259 | } catch (Throwable) { |
| 260 | return null; |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * Writes messages to compiled PHP cache file atomically. |
| 266 | * |
| 267 | * @param string $locale Locale code. |
| 268 | * @param string $category Message category. |
| 269 | * @param array<string, array<string, string>> $messages Messages to write. |
| 270 | */ |
| 271 | private function writeCompiledCache(string $locale, string $category, array $messages): void |
| 272 | { |
| 273 | if (!is_dir($this->cacheDir)) { |
| 274 | @mkdir($this->cacheDir, 0775, true); |
| 275 | } |
| 276 | |
| 277 | $filePath = $this->getCacheFilePath($locale, $category); |
| 278 | $tmpPath = $filePath . '.' . bin2hex(random_bytes(4)) . '.tmp'; |
| 279 | |
| 280 | $exported = var_export($messages, true); |
| 281 | $code = "<?php\n\ndeclare(strict_types=1);\n\nreturn {$exported};\n"; |
| 282 | |
| 283 | if (@file_put_contents($tmpPath, $code) !== false) { |
| 284 | @rename($tmpPath, $filePath); |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | /** |
| 289 | * Returns absolute cache file path for locale and category. |
| 290 | * |
| 291 | * @param string $locale Locale code. |
| 292 | * @param string $category Message category. |
| 293 | * @return string Absolute file path. |
| 294 | */ |
| 295 | private function getCacheFilePath(string $locale, string $category): string |
| 296 | { |
| 297 | $sanitizedCat = preg_replace('/[^a-zA-Z0-9_-]/', '_', $category) ?? 'default'; |
| 298 | |
| 299 | return $this->cacheDir . '/' . $locale . '_' . $sanitizedCat . '.php'; |
| 300 | } |
| 301 | |
| 302 | /** |
| 303 | * Interpolates parameter placeholders in translation message. |
| 304 | * |
| 305 | * @param string $message Raw message string. |
| 306 | * @param array<string, mixed> $parameters Parameters map. |
| 307 | * @return string Formatted message. |
| 308 | */ |
| 309 | private function formatMessage(string $message, array $parameters): string |
| 310 | { |
| 311 | if (empty($parameters)) { |
| 312 | return $message; |
| 313 | } |
| 314 | |
| 315 | $replace = []; |
| 316 | foreach ($parameters as $key => $val) { |
| 317 | $replace['{' . $key . '}'] = (string)$val; |
| 318 | $replace[':' . $key] = (string)$val; |
| 319 | } |
| 320 | |
| 321 | return strtr($message, $replace); |
| 322 | } |
| 323 | } |