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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\Engine\Application\Persistence; |
| 8 | |
| 9 | defined('AMMONLY_APP') || exit('Direct script access is forbidden.'); |
| 10 | |
| 11 | use App\Core\Engine\Domain\Exception\PermissionDeniedException; |
| 12 | use App\Core\Engine\Domain\Exception\RecordNotFoundException; |
| 13 | use App\Core\Engine\Domain\Model\FieldMetadata; |
| 14 | use App\Core\Engine\Domain\Model\ModuleMetadata; |
| 15 | use App\Core\Engine\Domain\Model\PermissionContext; |
| 16 | use PDO; |
| 17 | use PDOException; |
| 18 | use Throwable; |
| 19 | |
| 20 | /** |
| 21 | * Universal Persistence Manager. |
| 22 | * |
| 23 | * Handles all write operations (INSERT, UPDATE, DELETE) for any module |
| 24 | * using the module metadata to determine the target table. All operations |
| 25 | * run inside PDO transactions to ensure atomicity. |
| 26 | * Fetches pre-change snapshots for audit logging before mutations. |
| 27 | * |
| 28 | * @package App\Core\Engine\Application\Persistence |
| 29 | */ |
| 30 | final class UniversalPersistenceManager |
| 31 | { |
| 32 | /** @var array<string, string> In-memory cache of column projection expressions per table name. */ |
| 33 | private static array $tableColumnsCache = []; |
| 34 | |
| 35 | /** |
| 36 | * Clears in-memory table columns cache (primarily for tests). |
| 37 | */ |
| 38 | public static function clearColumnCache(): void |
| 39 | { |
| 40 | self::$tableColumnsCache = []; |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * UniversalPersistenceManager constructor. |
| 45 | * |
| 46 | * @param PDO $pdo Database connection. |
| 47 | */ |
| 48 | public function __construct( |
| 49 | private readonly PDO $pdo, |
| 50 | private readonly ?PDO $clientPdo = null, |
| 51 | private readonly string $tablePrefix = 'a_' |
| 52 | ) { |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Returns the underlying PDO database connection. |
| 57 | * |
| 58 | * @return PDO Database connection handle. |
| 59 | */ |
| 60 | public function getPdo(): PDO |
| 61 | { |
| 62 | return $this->pdo; |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Inserts a new record into the module table and returns the new record ID. |
| 67 | * |
| 68 | * Automatically injects created_by and owner from the PermissionContext. |
| 69 | * Runs inside a PDO transaction. |
| 70 | * |
| 71 | * @param ModuleMetadata $module Module metadata with table info. |
| 72 | * @param array<string, mixed> $data Validated and transformed field data. |
| 73 | * @param PermissionContext $context Security context with actor ID. |
| 74 | * @return int The primary key of the newly created record. |
| 75 | * @throws PDOException On database write failure. |
| 76 | */ |
| 77 | public function insert(ModuleMetadata $module, array $data, PermissionContext $context): int |
| 78 | { |
| 79 | $data['created_by'] = $context->getAuditActorUserId(); |
| 80 | if (!isset($data['owner']) || $data['owner'] === null || $data['owner'] === '' || (int)$data['owner'] === 0) { |
| 81 | $data['owner'] = $context->actorUserId; |
| 82 | } else { |
| 83 | $data['owner'] = (int)$data['owner']; |
| 84 | } |
| 85 | unset( |
| 86 | $data['is_favorite'], |
| 87 | $data['structures'] |
| 88 | ); |
| 89 | |
| 90 | if (isset($data['hidden_views'])) { |
| 91 | if (is_array($data['hidden_views'])) { |
| 92 | $views = array_filter(array_map('trim', $data['hidden_views'])); |
| 93 | $data['hidden_views'] = !empty($views) ? implode(',', $views) : null; |
| 94 | } elseif ($data['hidden_views'] === '') { |
| 95 | $data['hidden_views'] = null; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | $columns = array_keys($data); |
| 100 | $placeholders = array_map(static fn(string $col): string => ':' . $col, $columns); |
| 101 | |
| 102 | $sql = sprintf( |
| 103 | 'INSERT INTO `%s` (%s) VALUES (%s)', |
| 104 | $module->tableName, |
| 105 | '`' . implode('`, `', $columns) . '`', |
| 106 | implode(', ', $placeholders) |
| 107 | ); |
| 108 | |
| 109 | return $this->executeInTransaction(function () use ($sql, $data): int { |
| 110 | $stmt = $this->pdo->prepare($sql); |
| 111 | foreach ($data as $key => $value) { |
| 112 | $stmt->bindValue(':' . $key, $value); |
| 113 | } |
| 114 | $stmt->execute(); |
| 115 | return (int) $this->pdo->lastInsertId(); |
| 116 | }); |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Updates only the changed fields of an existing record. |
| 121 | * |
| 122 | * Fetches the current snapshot before updating for diff computation. |
| 123 | * Only fields present in $data are updated; other fields remain unchanged. |
| 124 | * |
| 125 | * @param ModuleMetadata $module Module metadata with table info. |
| 126 | * @param int $id Primary key of the record to update. |
| 127 | * @param array<string, mixed> $data Validated changed field values only. |
| 128 | * @param array<int, FieldMetadata> $fields Optional field metadata definitions. |
| 129 | * @return array<string, array{old: mixed, new: mixed}> Field-level diff for audit. |
| 130 | * @throws RecordNotFoundException When the record does not exist. |
| 131 | * @throws PDOException On database write failure. |
| 132 | */ |
| 133 | public function update(ModuleMetadata $module, int $id, array $data, array $fields = []): array |
| 134 | { |
| 135 | $data = $this->normalizeUpdatePayload($data); |
| 136 | |
| 137 | $snapshot = $this->fetchSnapshot($module, $id, $fields); |
| 138 | $this->assertNotSystemRecord($snapshot, $module, $id, 'modified'); |
| 139 | $diff = []; |
| 140 | |
| 141 | foreach ($data as $key => $newValue) { |
| 142 | $oldValue = $snapshot[$key] ?? null; |
| 143 | if ($this->isValueChanged($oldValue, $newValue)) { |
| 144 | $diff[$key] = [ |
| 145 | 'old' => $oldValue, |
| 146 | 'new' => $newValue, |
| 147 | ]; |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | if ($diff === []) { |
| 152 | return []; |
| 153 | } |
| 154 | |
| 155 | $setClauses = []; |
| 156 | $params = [':id' => $id]; |
| 157 | |
| 158 | foreach ($diff as $column => $change) { |
| 159 | $paramName = ':set_' . str_replace('-', '_', $column); |
| 160 | $setClauses[] = sprintf('`%s` = %s', $column, $paramName); |
| 161 | $params[$paramName] = $change['new']; |
| 162 | } |
| 163 | |
| 164 | $sql = sprintf( |
| 165 | 'UPDATE `%s` SET %s WHERE `%s` = :id', |
| 166 | $module->tableName, |
| 167 | implode(', ', $setClauses), |
| 168 | $module->primaryKey |
| 169 | ); |
| 170 | |
| 171 | $this->executeInTransaction(function () use ($sql, $params): void { |
| 172 | $stmt = $this->pdo->prepare($sql); |
| 173 | $stmt->execute($params); |
| 174 | }); |
| 175 | |
| 176 | $this->syncToClientIfNeeded($module, $sql, $params); |
| 177 | |
| 178 | return $diff; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * Normalizes and sanitizes the update payload fields. |
| 183 | * |
| 184 | * @param array<string, mixed> $data Raw update payload. |
| 185 | * @return array<string, mixed> Normalized payload. |
| 186 | */ |
| 187 | private function normalizeUpdatePayload(array $data): array |
| 188 | { |
| 189 | unset( |
| 190 | $data['id'], |
| 191 | $data['created_by'], |
| 192 | $data['created_at'], |
| 193 | $data['is_favorite'], |
| 194 | $data['structures'] |
| 195 | ); |
| 196 | if (isset($data['hidden_views'])) { |
| 197 | if (is_array($data['hidden_views'])) { |
| 198 | $views = array_filter(array_map('trim', $data['hidden_views'])); |
| 199 | $data['hidden_views'] = !empty($views) ? implode(',', $views) : null; |
| 200 | } elseif ($data['hidden_views'] === '') { |
| 201 | $data['hidden_views'] = null; |
| 202 | } |
| 203 | } |
| 204 | if (isset($data['owner'])) { |
| 205 | $data['owner'] = (int)$data['owner']; |
| 206 | } |
| 207 | |
| 208 | return $data; |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * Synchronizes core settings updates to client database if applicable. |
| 213 | * |
| 214 | * @param ModuleMetadata $module Module metadata. |
| 215 | * @param string $sql SQL query string. |
| 216 | * @param array<string, mixed> $params Query parameters. |
| 217 | */ |
| 218 | private function syncToClientIfNeeded(ModuleMetadata $module, string $sql, array $params): void |
| 219 | { |
| 220 | if ($this->clientPdo !== null && $module->tableName === $this->tablePrefix . 'core_settings_records') { |
| 221 | try { |
| 222 | $stmtClient = $this->clientPdo->prepare($sql); |
| 223 | $stmtClient->execute($params); |
| 224 | } catch (Throwable) { |
| 225 | // Non-blocking sync to client context database |
| 226 | } |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Determines whether two field values represent a genuine semantic change. |
| 232 | * |
| 233 | * @param mixed $oldValue Current value from database snapshot. |
| 234 | * @param mixed $newValue Incoming mutated value after input transformation. |
| 235 | * @return bool True if the value genuinely changed, false otherwise. |
| 236 | */ |
| 237 | private function isValueChanged(mixed $oldValue, mixed $newValue): bool |
| 238 | { |
| 239 | if ($oldValue === $newValue) { |
| 240 | return false; |
| 241 | } |
| 242 | |
| 243 | $isOldEmpty = ($oldValue === null || $oldValue === ''); |
| 244 | $isNewEmpty = ($newValue === null || $newValue === ''); |
| 245 | if ($isOldEmpty && $isNewEmpty) { |
| 246 | return false; |
| 247 | } |
| 248 | |
| 249 | return !$this->isSemanticallyEqual($oldValue, $newValue); |
| 250 | } |
| 251 | |
| 252 | private function isSemanticallyEqual(mixed $oldValue, mixed $newValue): bool |
| 253 | { |
| 254 | if (is_numeric($oldValue) && is_numeric($newValue)) { |
| 255 | return (string) $oldValue === (string) $newValue; |
| 256 | } |
| 257 | if (is_bool($oldValue) || is_bool($newValue)) { |
| 258 | return $this->toBoolean($oldValue) === $this->toBoolean($newValue); |
| 259 | } |
| 260 | return is_array($oldValue) && is_array($newValue) && $oldValue === $newValue; |
| 261 | } |
| 262 | |
| 263 | private function toBoolean(mixed $val): bool |
| 264 | { |
| 265 | return is_bool($val) ? $val : in_array($val, [1, '1', 'true'], true); |
| 266 | } |
| 267 | |
| 268 | /** |
| 269 | * Deletes a record by primary key. |
| 270 | * |
| 271 | * Fetches the snapshot before deletion for audit trail recording. |
| 272 | * Runs inside a PDO transaction. |
| 273 | * |
| 274 | * @param ModuleMetadata $module Module metadata with table info. |
| 275 | * @param int $id Primary key of record to delete. |
| 276 | * @param array<int, FieldMetadata> $fields Optional field metadata definitions. |
| 277 | * @return array<string, mixed> Snapshot of deleted record for audit trail. |
| 278 | * @throws RecordNotFoundException When record does not exist. |
| 279 | * @throws PDOException On database write failure. |
| 280 | */ |
| 281 | public function delete(ModuleMetadata $module, int $id, array $fields = []): array |
| 282 | { |
| 283 | $snapshot = $this->fetchSnapshot($module, $id, $fields); |
| 284 | $this->assertNotSystemRecord($snapshot, $module, $id, 'deleted'); |
| 285 | |
| 286 | $sql = sprintf( |
| 287 | 'DELETE FROM `%s` WHERE `%s` = :id', |
| 288 | $module->tableName, |
| 289 | $module->primaryKey |
| 290 | ); |
| 291 | |
| 292 | return $this->executeInTransaction(function () use ($sql, $id, $snapshot): array { |
| 293 | $stmt = $this->pdo->prepare($sql); |
| 294 | $stmt->bindValue(':id', $id, PDO::PARAM_INT); |
| 295 | $stmt->execute(); |
| 296 | return $snapshot; |
| 297 | }); |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * Changes the lifecycle status of a record (1=Available, 2=Archived, 3=Deleted). |
| 302 | * |
| 303 | * @param ModuleMetadata $module Module metadata. |
| 304 | * @param int $id Record primary key. |
| 305 | * @param int $newStatus Target lifecycle status code. |
| 306 | * @param array<int, FieldMetadata> $fields Optional field metadata definitions. |
| 307 | * @return array<string, mixed> Snapshot of record. |
| 308 | */ |
| 309 | public function updateRecordStatus( |
| 310 | ModuleMetadata $module, |
| 311 | int $id, |
| 312 | int $newStatus, |
| 313 | array $fields = [] |
| 314 | ): array { |
| 315 | $snapshot = $this->fetchSnapshot($module, $id, $fields); |
| 316 | $this->assertNotSystemRecord($snapshot, $module, $id, 'transitioned to another status'); |
| 317 | |
| 318 | $col = 'special_access'; |
| 319 | foreach ($fields as $f) { |
| 320 | if ($f->fieldKey === 'special_access') { |
| 321 | $col = 'special_access'; |
| 322 | break; |
| 323 | } |
| 324 | if ($f->fieldKey === 'record_status') { |
| 325 | $col = 'record_status'; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | $sql = sprintf( |
| 330 | 'UPDATE `%s` SET `%s` = :status WHERE `%s` = :id', |
| 331 | $module->tableName, |
| 332 | $col, |
| 333 | $module->primaryKey |
| 334 | ); |
| 335 | |
| 336 | return $this->executeInTransaction(function () use ($sql, $id, $newStatus, $snapshot): array { |
| 337 | $stmt = $this->pdo->prepare($sql); |
| 338 | $stmt->bindValue(':status', $newStatus, PDO::PARAM_INT); |
| 339 | $stmt->bindValue(':id', $id, PDO::PARAM_INT); |
| 340 | $stmt->execute(); |
| 341 | return $snapshot; |
| 342 | }); |
| 343 | } |
| 344 | |
| 345 | /** |
| 346 | * Updates special access lifecycle code (alias for updateRecordStatus). |
| 347 | * |
| 348 | * @param ModuleMetadata $module Module metadata. |
| 349 | * @param int $id Record primary key. |
| 350 | * @param int $newStatus Target lifecycle status code. |
| 351 | * @param array<int, FieldMetadata> $fields Optional field metadata definitions. |
| 352 | * @return array<string, mixed> Snapshot of record. |
| 353 | */ |
| 354 | public function updateSpecialAccess( |
| 355 | ModuleMetadata $module, |
| 356 | int $id, |
| 357 | int $newStatus, |
| 358 | array $fields = [] |
| 359 | ): array { |
| 360 | return $this->updateRecordStatus($module, $id, $newStatus, $fields); |
| 361 | } |
| 362 | |
| 363 | /** |
| 364 | * Guards system-protected records from being mutated or deleted. |
| 365 | * |
| 366 | * @param array<string, mixed> $snapshot Record snapshot. |
| 367 | * @param ModuleMetadata $module Module metadata. |
| 368 | * @param int $id Record ID. |
| 369 | * @param string $action Attempted mutation action description. |
| 370 | * @throws PermissionDeniedException When record is system protected. |
| 371 | */ |
| 372 | private function assertNotSystemRecord(array $snapshot, ModuleMetadata $module, int $id, string $action): void |
| 373 | { |
| 374 | $isSystem = (bool) ($snapshot['is_system'] ?? false); |
| 375 | |
| 376 | if ($isSystem) { |
| 377 | throw new PermissionDeniedException( |
| 378 | sprintf('System record #%d in module "%s" cannot be %s.', $id, $module->name, $action) |
| 379 | ); |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | /** |
| 384 | * Executes an operation wrapped in a transaction if one is not already active. |
| 385 | * |
| 386 | * @template T |
| 387 | * @param callable(): T $callback Database operation to execute. |
| 388 | * @return T Result of callback. |
| 389 | */ |
| 390 | private function executeInTransaction(callable $callback): mixed |
| 391 | { |
| 392 | $ownsTransaction = !$this->pdo->inTransaction(); |
| 393 | if ($ownsTransaction) { |
| 394 | $this->pdo->beginTransaction(); |
| 395 | } |
| 396 | try { |
| 397 | $result = $callback(); |
| 398 | if ($ownsTransaction) { |
| 399 | $this->pdo->commit(); |
| 400 | } |
| 401 | return $result; |
| 402 | } catch (PDOException $e) { |
| 403 | if ($ownsTransaction && $this->pdo->inTransaction()) { |
| 404 | $this->pdo->rollBack(); |
| 405 | } |
| 406 | throw $e; |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * Fetches a full record snapshot by primary key. |
| 412 | * |
| 413 | * @param ModuleMetadata $module Module metadata. |
| 414 | * @param int $id Record primary key. |
| 415 | * @param array<int, FieldMetadata> $fields Optional field definitions to avoid DESCRIBE. |
| 416 | * @return array<string, mixed> Full row data. |
| 417 | * @throws RecordNotFoundException When record does not exist. |
| 418 | */ |
| 419 | public function fetchSnapshot(ModuleMetadata $module, int $id, array $fields = []): array |
| 420 | { |
| 421 | $tableName = $module->tableName; |
| 422 | if (!isset(self::$tableColumnsCache[$tableName])) { |
| 423 | self::$tableColumnsCache[$tableName] = $this->resolveSnapshotColumns($module, $fields); |
| 424 | } |
| 425 | |
| 426 | $colList = self::$tableColumnsCache[$tableName]; |
| 427 | |
| 428 | $sql = sprintf( |
| 429 | 'SELECT %s FROM `%s` WHERE `%s` = :id LIMIT 1', |
| 430 | $colList, |
| 431 | $tableName, |
| 432 | $module->primaryKey |
| 433 | ); |
| 434 | $stmt = $this->pdo->prepare($sql); |
| 435 | $stmt->bindValue(':id', $id, PDO::PARAM_INT); |
| 436 | $stmt->execute(); |
| 437 | |
| 438 | /** @var array<string, mixed>|false $row */ |
| 439 | $row = $stmt->fetch(PDO::FETCH_ASSOC); |
| 440 | |
| 441 | if ($row === false) { |
| 442 | throw RecordNotFoundException::forId($module->name, $id); |
| 443 | } |
| 444 | |
| 445 | return $row; |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * Resolves and formats comma-separated column list for snapshot query. |
| 450 | * |
| 451 | * @param array<int, FieldMetadata> $fields |
| 452 | */ |
| 453 | private function resolveSnapshotColumns(ModuleMetadata $module, array $fields): string |
| 454 | { |
| 455 | $columns = []; |
| 456 | try { |
| 457 | $colsStmt = $this->pdo->query(sprintf('DESCRIBE `%s`', $module->tableName)); |
| 458 | if ($colsStmt !== false) { |
| 459 | /** @var array<int, string> $columns */ |
| 460 | $columns = $colsStmt->fetchAll(PDO::FETCH_COLUMN); |
| 461 | } |
| 462 | } catch (\Throwable) { |
| 463 | $columns = []; |
| 464 | } |
| 465 | |
| 466 | if ($columns !== []) { |
| 467 | return '`' . implode('`, `', $columns) . '`'; |
| 468 | } |
| 469 | |
| 470 | if ($fields !== []) { |
| 471 | $cols = []; |
| 472 | foreach ($fields as $field) { |
| 473 | if ($this->isNonPhysicalField($field)) { |
| 474 | continue; |
| 475 | } |
| 476 | $cols[] = '`' . $field->fieldKey . '`'; |
| 477 | } |
| 478 | $pkCol = '`' . $module->primaryKey . '`'; |
| 479 | if (!in_array($pkCol, $cols, true)) { |
| 480 | $cols[] = $pkCol; |
| 481 | } |
| 482 | return implode(', ', $cols); |
| 483 | } |
| 484 | |
| 485 | return '`' . $module->primaryKey . '`'; |
| 486 | } |
| 487 | |
| 488 | /** |
| 489 | * Determines whether a field is virtual, relational, or non-persisted in the main table. |
| 490 | */ |
| 491 | private function isNonPhysicalField(FieldMetadata $field): bool |
| 492 | { |
| 493 | if ($field->fieldKey === 'is_favorite' || $field->uitypeName === 'favorite') { |
| 494 | return true; |
| 495 | } |
| 496 | |
| 497 | if ($field->fieldKey === 'structures' || $field->uitypeName === 'relation_1m_picklist') { |
| 498 | return true; |
| 499 | } |
| 500 | |
| 501 | return in_array($field->fieldKey, ['is_pinned', 'default_sort', 'default_order'], true); |
| 502 | } |
| 503 | } |