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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Node; |
| 6 | |
| 7 | use Celema\Quma\Database; |
| 8 | use Cosray\Exception\RoutePathError; |
| 9 | use Cosray\Field\Field; |
| 10 | use Cosray\Locale; |
| 11 | use Cosray\Locales; |
| 12 | use JsonException; |
| 13 | use Locale as IcuLocale; |
| 14 | use Normalizer; |
| 15 | use Transliterator; |
| 16 | |
| 17 | final class RoutePathGenerator |
| 18 | { |
| 19 | private const MAX_PARENT_DEPTH = 5; |
| 20 | |
| 21 | private const LATIN_FOLD = 'Any-Latin; Latin-ASCII'; |
| 22 | |
| 23 | /** @var array<string, ?Transliterator> Keyed by language subtag. */ |
| 24 | private array $transliterators = []; |
| 25 | |
| 26 | public function __construct( |
| 27 | private readonly Database $db, |
| 28 | private readonly Types $types, |
| 29 | ) {} |
| 30 | |
| 31 | /** |
| 32 | * @param class-string $nodeClass |
| 33 | * @param array<string, mixed> $data |
| 34 | * @return array<string, string> |
| 35 | */ |
| 36 | public function generate( |
| 37 | string $nodeClass, |
| 38 | array $data, |
| 39 | Locales $locales, |
| 40 | ?int $parentId = null, |
| 41 | ): array { |
| 42 | return $this->generateFromRoute( |
| 43 | $this->types->get($nodeClass, 'route'), |
| 44 | $data, |
| 45 | $locales, |
| 46 | $parentId, |
| 47 | ); |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * @param class-string $nodeClass |
| 52 | * @param array<string, mixed> $data |
| 53 | * @return array<string, string> |
| 54 | */ |
| 55 | public function preview( |
| 56 | string $nodeClass, |
| 57 | array $data, |
| 58 | Locales $locales, |
| 59 | ?int $parentId = null, |
| 60 | ): array { |
| 61 | return $this->generateFromRoute( |
| 62 | $this->types->get($nodeClass, 'route'), |
| 63 | $data, |
| 64 | $locales, |
| 65 | $parentId, |
| 66 | strict: false, |
| 67 | ); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * The node's own content-field names a route template references, so the |
| 72 | * editor can live-preview generated paths when exactly those inputs |
| 73 | * change. Excludes uid, handle and the parent family — none of which are |
| 74 | * editable content fields of this node. |
| 75 | * |
| 76 | * @return list<string> |
| 77 | */ |
| 78 | public function referencedFields(mixed $route): array |
| 79 | { |
| 80 | $templates = match (true) { |
| 81 | is_array($route) => array_values($route), |
| 82 | is_string($route) => [$route], |
| 83 | default => [], |
| 84 | }; |
| 85 | $fields = []; |
| 86 | |
| 87 | foreach ($templates as $template) { |
| 88 | if (!is_string($template) || !preg_match_all('/\{([^{}]+)\}/', $template, $matches)) { |
| 89 | continue; |
| 90 | } |
| 91 | |
| 92 | foreach ($matches[1] as $inner) { |
| 93 | $selector = trim(explode('|', $inner)[0] ?? ''); |
| 94 | |
| 95 | if ( |
| 96 | $selector === '' |
| 97 | || $selector === 'uid' |
| 98 | || $selector === 'handle' |
| 99 | || $selector === 'parent' |
| 100 | || str_starts_with($selector, 'parent.') |
| 101 | || str_starts_with($selector, 'parent(') |
| 102 | || str_starts_with($selector, 'parent?') |
| 103 | ) { |
| 104 | continue; |
| 105 | } |
| 106 | |
| 107 | $fields[$selector] = true; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | return array_keys($fields); |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * @param array<string, string>|string|mixed $route |
| 116 | * @param array<string, mixed> $data |
| 117 | * @return array<string, string> |
| 118 | */ |
| 119 | public function generateFromRoute( |
| 120 | mixed $route, |
| 121 | array $data, |
| 122 | Locales $locales, |
| 123 | ?int $parentId = null, |
| 124 | bool $strict = true, |
| 125 | ): array { |
| 126 | if (!is_string($route) && !is_array($route)) { |
| 127 | return []; |
| 128 | } |
| 129 | |
| 130 | $parents = []; |
| 131 | $paths = []; |
| 132 | |
| 133 | foreach ($locales as $locale) { |
| 134 | $template = $this->template($route, $locale); |
| 135 | |
| 136 | if ($template === '') { |
| 137 | continue; |
| 138 | } |
| 139 | |
| 140 | $paths[$locale->id] = $this->expand($template, $data, $locale, $parents, $parentId, $strict); |
| 141 | } |
| 142 | |
| 143 | return $paths; |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * @param array<string, string>|string $route |
| 148 | */ |
| 149 | private function template(array|string $route, Locale $locale): string |
| 150 | { |
| 151 | if (is_string($route)) { |
| 152 | return $route; |
| 153 | } |
| 154 | |
| 155 | return $route[$locale->id] ?? ''; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * @param array<string, mixed> $data |
| 160 | * @param array<int, array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>}> $parents |
| 161 | */ |
| 162 | private function expand( |
| 163 | string $template, |
| 164 | array $data, |
| 165 | Locale $locale, |
| 166 | array &$parents, |
| 167 | ?int $parentId, |
| 168 | bool $strict, |
| 169 | ): string { |
| 170 | $usesParentPath = false; |
| 171 | $path = preg_replace_callback( |
| 172 | '/\{([^{}]+)\}/', |
| 173 | function (array $matches) use ($data, $locale, &$parents, $parentId, $strict, &$usesParentPath): string { |
| 174 | try { |
| 175 | return $this->resolve($matches[1], $data, $locale, $parents, $parentId, $usesParentPath); |
| 176 | } catch (RoutePathError $e) { |
| 177 | if ($strict) { |
| 178 | throw $e; |
| 179 | } |
| 180 | |
| 181 | return $this->friendlyPlaceholder($matches[1]); |
| 182 | } |
| 183 | }, |
| 184 | $template, |
| 185 | ); |
| 186 | |
| 187 | if (!is_string($path)) { |
| 188 | throw new RoutePathError('Could not generate route path'); |
| 189 | } |
| 190 | |
| 191 | if ($strict && (str_contains($path, '{') || str_contains($path, '}'))) { |
| 192 | throw new RoutePathError('Invalid route path placeholder syntax'); |
| 193 | } |
| 194 | |
| 195 | return $usesParentPath ? $this->normalizePath($path) : $path; |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * @param array<string, mixed> $data |
| 200 | * @param array<int, array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>}> $parents |
| 201 | */ |
| 202 | private function resolve( |
| 203 | string $placeholder, |
| 204 | array $data, |
| 205 | Locale $locale, |
| 206 | array &$parents, |
| 207 | ?int $parentId, |
| 208 | bool &$usesParentPath, |
| 209 | ): string { |
| 210 | [$selector, $transformers] = $this->parsePlaceholder($placeholder); |
| 211 | |
| 212 | if ($selector === 'uid') { |
| 213 | return $this->requiredSlug($data['uid'] ?? null, $placeholder, $transformers); |
| 214 | } |
| 215 | |
| 216 | if ($selector === 'handle') { |
| 217 | return $this->requiredSlug($data['handle'] ?? null, $placeholder, $transformers); |
| 218 | } |
| 219 | |
| 220 | $parentSelector = $this->parentSelector($selector); |
| 221 | |
| 222 | if ($parentSelector !== null) { |
| 223 | if ($parentSelector['field'] === null && $transformers !== []) { |
| 224 | throw new RoutePathError( |
| 225 | 'Route path transformers are not supported for parent path placeholders', |
| 226 | ); |
| 227 | } |
| 228 | |
| 229 | if ($parentSelector['field'] === null) { |
| 230 | $usesParentPath = true; |
| 231 | |
| 232 | if ($parentSelector['optional'] && !$this->hasParent($data, $parentId)) { |
| 233 | return ''; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | $parent = $this->ancestor($data, $parentId, $parents, $parentSelector['depth']); |
| 238 | |
| 239 | if ($parentSelector['field'] === null) { |
| 240 | return trim($this->parentPath($parent, $locale, $placeholder), '/'); |
| 241 | } |
| 242 | |
| 243 | return $this->resolveParent( |
| 244 | $parentSelector['field'], |
| 245 | $parent, |
| 246 | $locale, |
| 247 | $placeholder, |
| 248 | $transformers, |
| 249 | ); |
| 250 | } |
| 251 | |
| 252 | $content = $data['content'] ?? []; |
| 253 | |
| 254 | return $this->field( |
| 255 | is_array($content) ? $content : [], |
| 256 | $selector, |
| 257 | $locale, |
| 258 | $placeholder, |
| 259 | $transformers, |
| 260 | ); |
| 261 | } |
| 262 | |
| 263 | /** @return array{0: string, 1: list<string>} */ |
| 264 | private function parsePlaceholder(string $placeholder): array |
| 265 | { |
| 266 | $parts = array_map(trim(...), explode('|', $placeholder)); |
| 267 | $selector = array_shift($parts) ?? ''; |
| 268 | |
| 269 | if ($selector === '') { |
| 270 | throw new RoutePathError('Invalid route path placeholder syntax'); |
| 271 | } |
| 272 | |
| 273 | foreach ($parts as $transformer) { |
| 274 | if (!in_array( |
| 275 | $transformer, |
| 276 | ['lowercase', 'uppercase', 'titlecase', 'keepcase', 'dashes', 'underscore'], |
| 277 | true, |
| 278 | )) { |
| 279 | throw new RoutePathError(sprintf('Unknown route path transformer: %s', $transformer)); |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | return [$selector, $parts]; |
| 284 | } |
| 285 | |
| 286 | /** @return ?array{depth: int, field: ?string, optional: bool} */ |
| 287 | private function parentSelector(string $selector): ?array |
| 288 | { |
| 289 | if ( |
| 290 | $selector !== 'parent' |
| 291 | && !str_starts_with($selector, 'parent.') |
| 292 | && !str_starts_with($selector, 'parent(') |
| 293 | && !str_starts_with($selector, 'parent?') |
| 294 | ) { |
| 295 | return null; |
| 296 | } |
| 297 | |
| 298 | if ($selector === 'parent?') { |
| 299 | return [ |
| 300 | 'depth' => 1, |
| 301 | 'field' => null, |
| 302 | 'optional' => true, |
| 303 | ]; |
| 304 | } |
| 305 | |
| 306 | if (!preg_match('/^parent(?:\(([1-9]\d*)\))?(?:\.(.+))?$/', $selector, $matches)) { |
| 307 | throw new RoutePathError('Invalid route path parent syntax'); |
| 308 | } |
| 309 | |
| 310 | $depth = isset($matches[1]) && $matches[1] !== '' ? (int) $matches[1] : 1; |
| 311 | |
| 312 | if ($depth > self::MAX_PARENT_DEPTH) { |
| 313 | throw new RoutePathError(sprintf( |
| 314 | 'Route path parent depth cannot exceed %d', |
| 315 | self::MAX_PARENT_DEPTH, |
| 316 | )); |
| 317 | } |
| 318 | |
| 319 | $field = $matches[2] ?? null; |
| 320 | |
| 321 | return [ |
| 322 | 'depth' => $depth, |
| 323 | 'field' => is_string($field) && $field !== '' ? $field : null, |
| 324 | 'optional' => false, |
| 325 | ]; |
| 326 | } |
| 327 | |
| 328 | private function friendlyPlaceholder(string $placeholder): string |
| 329 | { |
| 330 | $selector = trim(explode('|', $placeholder)[0] ?? ''); |
| 331 | $parent = $this->friendlyParentPlaceholder($selector); |
| 332 | |
| 333 | if ($parent !== null) { |
| 334 | return $parent; |
| 335 | } |
| 336 | |
| 337 | return '[' . $this->friendlyLabel($selector) . ']'; |
| 338 | } |
| 339 | |
| 340 | private function friendlyParentPlaceholder(string $selector): ?string |
| 341 | { |
| 342 | if ($selector === 'parent?') { |
| 343 | return '[parent path]'; |
| 344 | } |
| 345 | |
| 346 | if (!preg_match('/^parent(?:\((\d+)\))?(?:\.(.+))?$/', $selector, $matches)) { |
| 347 | return null; |
| 348 | } |
| 349 | |
| 350 | $depth = isset($matches[1]) && $matches[1] !== '' ? (int) $matches[1] : 1; |
| 351 | $prefix = $depth > 1 ? 'ancestor' : 'parent'; |
| 352 | $field = $matches[2] ?? null; |
| 353 | |
| 354 | if (!is_string($field) || $field === '') { |
| 355 | return "[{$prefix} path]"; |
| 356 | } |
| 357 | |
| 358 | return "[{$prefix} {$this->friendlyLabel($field)}]"; |
| 359 | } |
| 360 | |
| 361 | private function friendlyLabel(string $selector): string |
| 362 | { |
| 363 | $label = str_replace(['.', '_', '-', '(', ')'], ' ', $selector); |
| 364 | $label = preg_replace('/([A-Z]+)([A-Z][a-z])/', '$1 $2', $label) ?? $label; |
| 365 | $label = preg_replace('/([a-z0-9])([A-Z])/', '$1 $2', $label) ?? $label; |
| 366 | $label = preg_replace('/\s+/', ' ', $label) ?? $label; |
| 367 | $label = strtolower(trim($label)); |
| 368 | |
| 369 | return $label === '' ? 'value' : $label; |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * @param array<string, mixed> $data |
| 374 | * @param array<int, array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>}> $parents |
| 375 | * @return array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>} |
| 376 | */ |
| 377 | private function ancestor(array $data, ?int $parentId, array &$parents, int $depth): array |
| 378 | { |
| 379 | $parents[1] ??= $this->parent($data, $parentId); |
| 380 | |
| 381 | for ($level = 2; $level <= $depth; $level++) { |
| 382 | if (isset($parents[$level])) { |
| 383 | continue; |
| 384 | } |
| 385 | |
| 386 | $node = $parents[$level - 1]['parent']; |
| 387 | |
| 388 | if ($node === null) { |
| 389 | throw new RoutePathError('Ancestor node not found for route path'); |
| 390 | } |
| 391 | |
| 392 | $parents[$level] = $this->parentByNode($node); |
| 393 | } |
| 394 | |
| 395 | return $parents[$depth]; |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * @param array<string, mixed> $data |
| 400 | * @return array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>} |
| 401 | */ |
| 402 | private function parent(array $data, ?int $parentId): array |
| 403 | { |
| 404 | if ($parentId !== null) { |
| 405 | return $this->parentByNode($parentId); |
| 406 | } |
| 407 | |
| 408 | $parentUid = $data['parent'] ?? null; |
| 409 | |
| 410 | if (!is_string($parentUid) || trim($parentUid) === '') { |
| 411 | throw new RoutePathError('A parent is required for this node route'); |
| 412 | } |
| 413 | |
| 414 | return $this->parentByUid(trim($parentUid)); |
| 415 | } |
| 416 | |
| 417 | /** @param array<string, mixed> $data */ |
| 418 | private function hasParent(array $data, ?int $parentId): bool |
| 419 | { |
| 420 | if ($parentId !== null) { |
| 421 | return true; |
| 422 | } |
| 423 | |
| 424 | $parentUid = $data['parent'] ?? null; |
| 425 | |
| 426 | return is_string($parentUid) && trim($parentUid) !== ''; |
| 427 | } |
| 428 | |
| 429 | /** @return array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>} */ |
| 430 | private function parentByNode(int $node): array |
| 431 | { |
| 432 | $parent = $this->db->nodes->routeParentByNode(['node' => $node])->first(); |
| 433 | |
| 434 | if (!$parent) { |
| 435 | throw new RoutePathError('Parent node not found for route path'); |
| 436 | } |
| 437 | |
| 438 | return $this->parentRow($parent); |
| 439 | } |
| 440 | |
| 441 | /** @return array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>} */ |
| 442 | private function parentByUid(string $uid): array |
| 443 | { |
| 444 | $parent = $this->db->nodes->routeParentByUid(['uid' => $uid])->first(); |
| 445 | |
| 446 | if (!$parent) { |
| 447 | throw new RoutePathError('Parent node not found for route path'); |
| 448 | } |
| 449 | |
| 450 | return $this->parentRow($parent); |
| 451 | } |
| 452 | |
| 453 | /** |
| 454 | * @param array<string, mixed> $parent |
| 455 | * @return array{node: int, parent: ?int, uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>} |
| 456 | */ |
| 457 | private function parentRow(array $parent): array |
| 458 | { |
| 459 | $content = $this->decodeContent($parent['content'] ?? '{}'); |
| 460 | $handle = $parent['handle'] ?? null; |
| 461 | $node = (int) $parent['node']; |
| 462 | |
| 463 | return [ |
| 464 | 'node' => $node, |
| 465 | 'parent' => $this->nodeId($parent['parent'] ?? null), |
| 466 | 'uid' => (string) $parent['uid'], |
| 467 | 'handle' => is_string($handle) && $handle !== '' ? $handle : null, |
| 468 | 'content' => $content, |
| 469 | 'paths' => $this->parentPaths($node), |
| 470 | ]; |
| 471 | } |
| 472 | |
| 473 | private function nodeId(mixed $node): ?int |
| 474 | { |
| 475 | if (is_int($node)) { |
| 476 | return $node; |
| 477 | } |
| 478 | |
| 479 | if (is_string($node) && ctype_digit($node)) { |
| 480 | return (int) $node; |
| 481 | } |
| 482 | |
| 483 | return null; |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * @return array<string, string> |
| 488 | */ |
| 489 | private function parentPaths(int $node): array |
| 490 | { |
| 491 | $paths = []; |
| 492 | |
| 493 | foreach ($this->db->paths->activeByNode(['node' => $node])->all() as $path) { |
| 494 | $locale = $path['locale'] ?? null; |
| 495 | $value = $path['path'] ?? null; |
| 496 | |
| 497 | if (is_string($locale) && is_string($value) && trim($value) !== '') { |
| 498 | $paths[$locale] = $value; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | return $paths; |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * @param array{uid: string, handle: ?string, content: array<string, mixed>, paths: array<string, string>} $parent |
| 507 | * @param list<string> $transformers |
| 508 | */ |
| 509 | private function resolveParent( |
| 510 | string $placeholder, |
| 511 | array $parent, |
| 512 | Locale $locale, |
| 513 | string $fullPlaceholder, |
| 514 | array $transformers, |
| 515 | ): string { |
| 516 | return match ($placeholder) { |
| 517 | 'uid' => $this->requiredSlug($parent['uid'], $fullPlaceholder, $transformers), |
| 518 | 'handle' => $this->requiredSlug($parent['handle'], $fullPlaceholder, $transformers), |
| 519 | default => $this->field( |
| 520 | $parent['content'], |
| 521 | $placeholder, |
| 522 | $locale, |
| 523 | $fullPlaceholder, |
| 524 | $transformers, |
| 525 | ), |
| 526 | }; |
| 527 | } |
| 528 | |
| 529 | /** @param array{paths: array<string, string>} $parent */ |
| 530 | private function parentPath(array $parent, Locale $locale, string $placeholder): string |
| 531 | { |
| 532 | $current = $locale; |
| 533 | |
| 534 | while ($current !== null) { |
| 535 | $path = $this->pathValue($parent['paths'][$current->id] ?? null); |
| 536 | |
| 537 | if ($path !== null) { |
| 538 | return $path; |
| 539 | } |
| 540 | |
| 541 | $current = $current->fallback(); |
| 542 | } |
| 543 | |
| 544 | throw new RoutePathError(sprintf('Could not resolve route placeholder: {%s}', $placeholder)); |
| 545 | } |
| 546 | |
| 547 | private function pathValue(mixed $path): ?string |
| 548 | { |
| 549 | if (!is_string($path)) { |
| 550 | return null; |
| 551 | } |
| 552 | |
| 553 | $path = trim($path); |
| 554 | |
| 555 | return $path === '' ? null : $path; |
| 556 | } |
| 557 | |
| 558 | private function normalizePath(string $path): string |
| 559 | { |
| 560 | $path = preg_replace('#/+#', '/', $path) ?? ''; |
| 561 | |
| 562 | if ($path === '') { |
| 563 | return '/'; |
| 564 | } |
| 565 | |
| 566 | return str_starts_with($path, '/') ? $path : '/' . $path; |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * @param array<string, mixed> $content |
| 571 | * @param list<string> $transformers |
| 572 | */ |
| 573 | private function field( |
| 574 | array $content, |
| 575 | string $field, |
| 576 | Locale $locale, |
| 577 | string $placeholder, |
| 578 | array $transformers, |
| 579 | ): string { |
| 580 | $value = $content[$field]['value'] ?? null; |
| 581 | |
| 582 | if (!is_array($value)) { |
| 583 | throw new RoutePathError(sprintf('Could not resolve route placeholder: {%s}', $placeholder)); |
| 584 | } |
| 585 | |
| 586 | $current = $locale; |
| 587 | |
| 588 | while ($current !== null) { |
| 589 | // The fallback chain can hand back another locale's text; the |
| 590 | // transform follows the text, not the path being generated. |
| 591 | $resolved = $this->slugValue($value[$current->id] ?? null, $transformers, $current->id); |
| 592 | |
| 593 | if ($resolved !== null) { |
| 594 | return $resolved; |
| 595 | } |
| 596 | |
| 597 | $current = $current->fallback(); |
| 598 | } |
| 599 | |
| 600 | $resolved = $this->slugValue($value[Field::NEUTRAL_LOCALE] ?? null, $transformers, null); |
| 601 | |
| 602 | if ($resolved !== null) { |
| 603 | return $resolved; |
| 604 | } |
| 605 | |
| 606 | throw new RoutePathError(sprintf('Could not resolve route placeholder: {%s}', $placeholder)); |
| 607 | } |
| 608 | |
| 609 | /** @param list<string> $transformers */ |
| 610 | private function requiredSlug(mixed $value, string $placeholder, array $transformers): string |
| 611 | { |
| 612 | if (!is_string($value) || trim($value) === '') { |
| 613 | throw new RoutePathError(sprintf('Could not resolve route placeholder: {%s}', $placeholder)); |
| 614 | } |
| 615 | |
| 616 | $slug = $this->slugify( |
| 617 | $this->transformCase($this->toAscii($value, null), $transformers), |
| 618 | $this->separator($transformers), |
| 619 | ); |
| 620 | |
| 621 | if ($slug === '') { |
| 622 | throw new RoutePathError(sprintf('Could not resolve route placeholder: {%s}', $placeholder)); |
| 623 | } |
| 624 | |
| 625 | return $slug; |
| 626 | } |
| 627 | |
| 628 | /** @param list<string> $transformers */ |
| 629 | private function slugValue(mixed $value, array $transformers, ?string $locale): ?string |
| 630 | { |
| 631 | if (!is_string($value) && !is_int($value) && !is_float($value)) { |
| 632 | return null; |
| 633 | } |
| 634 | |
| 635 | $slug = $this->slugify( |
| 636 | $this->transformCase($this->toAscii((string) $value, $locale), $transformers), |
| 637 | $this->separator($transformers), |
| 638 | ); |
| 639 | |
| 640 | return $slug === '' ? null : $slug; |
| 641 | } |
| 642 | |
| 643 | /** @param list<string> $transformers */ |
| 644 | private function transformCase(string $value, array $transformers): string |
| 645 | { |
| 646 | $case = 'lowercase'; |
| 647 | |
| 648 | foreach ($transformers as $transformer) { |
| 649 | if (!in_array($transformer, ['lowercase', 'uppercase', 'titlecase', 'keepcase'], true)) { |
| 650 | continue; |
| 651 | } |
| 652 | |
| 653 | $case = $transformer; |
| 654 | } |
| 655 | |
| 656 | return match ($case) { |
| 657 | 'uppercase' => strtoupper($value), |
| 658 | 'titlecase' => ucwords(strtolower($value)), |
| 659 | 'keepcase' => $value, |
| 660 | default => strtolower($value), |
| 661 | }; |
| 662 | } |
| 663 | |
| 664 | /** @param list<string> $transformers */ |
| 665 | private function separator(array $transformers): string |
| 666 | { |
| 667 | $separator = '-'; |
| 668 | |
| 669 | foreach ($transformers as $transformer) { |
| 670 | $separator = match ($transformer) { |
| 671 | 'dashes' => '-', |
| 672 | 'underscore' => '_', |
| 673 | default => $separator, |
| 674 | }; |
| 675 | } |
| 676 | |
| 677 | return $separator; |
| 678 | } |
| 679 | |
| 680 | /** Fold with the value's locale before byte-oriented case conversion and truncation. */ |
| 681 | private function toAscii(string $value, ?string $locale): string |
| 682 | { |
| 683 | $value = Normalizer::normalize($value, Normalizer::FORM_C) ?: $value; |
| 684 | // Latin-ASCII can spell symbols such as ® and © out as "(R)" and "(C)", |
| 685 | // whose letters would survive the filter below and land in the path. |
| 686 | $value = preg_replace('/[\p{So}\p{Sk}]/u', '', $value) ?? $value; |
| 687 | $folded = $this->transliterator($locale)?->transliterate($value); |
| 688 | $folded = is_string($folded) ? $folded : $value; |
| 689 | |
| 690 | return preg_replace('/[^\x00-\x7F]+/', '', $folded) ?? $folded; |
| 691 | } |
| 692 | |
| 693 | private function transliterator(?string $locale): ?Transliterator |
| 694 | { |
| 695 | // An empty id would resolve to ICU's default locale rather than to no |
| 696 | // language at all, so it has to short-circuit alongside null. |
| 697 | $language = |
| 698 | $locale === null || $locale === '' |
| 699 | ? '' |
| 700 | : (string) IcuLocale::getPrimaryLanguage($locale); |
| 701 | |
| 702 | if (!array_key_exists($language, $this->transliterators)) { |
| 703 | // Valid language tags do not necessarily have a locale-specific ASCII transform. |
| 704 | $this->transliterators[$language] = ( |
| 705 | $language === '' |
| 706 | ? null |
| 707 | : Transliterator::create($language . '-ASCII; ' . self::LATIN_FOLD) |
| 708 | ) |
| 709 | ?? Transliterator::create(self::LATIN_FOLD); |
| 710 | } |
| 711 | |
| 712 | return $this->transliterators[$language]; |
| 713 | } |
| 714 | |
| 715 | private function slugify(string $value, string $separator): string |
| 716 | { |
| 717 | $value = trim(preg_replace('/\s+/', $separator, $value) ?? ''); |
| 718 | $value = substr($value, 0, 255); |
| 719 | $value = preg_replace('/[^A-Za-z0-9_-]+/', '', $value) ?? ''; |
| 720 | |
| 721 | $quoted = preg_quote($separator, '/'); |
| 722 | $value = preg_replace("/{$quoted}{$quoted}+/", $separator, $value) ?? ''; |
| 723 | |
| 724 | return trim($value, $separator); |
| 725 | } |
| 726 | |
| 727 | /** |
| 728 | * @return array<string, mixed> |
| 729 | */ |
| 730 | private function decodeContent(mixed $content): array |
| 731 | { |
| 732 | if (is_array($content)) { |
| 733 | return $content; |
| 734 | } |
| 735 | |
| 736 | if (!is_string($content) || $content === '') { |
| 737 | return []; |
| 738 | } |
| 739 | |
| 740 | try { |
| 741 | $decoded = json_decode($content, true, flags: JSON_THROW_ON_ERROR); |
| 742 | } catch (JsonException $e) { |
| 743 | throw new RoutePathError('Could not decode parent content for route path', previous: $e); |
| 744 | } |
| 745 | |
| 746 | return is_array($decoded) ? $decoded : []; |
| 747 | } |
| 748 | } |