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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Finder; |
| 6 | |
| 7 | use Cosray\Cms; |
| 8 | use Cosray\Context; |
| 9 | use Cosray\Exception\RuntimeException; |
| 10 | use Cosray\Node\Factory; |
| 11 | use Cosray\Node\Node; |
| 12 | use Cosray\Node\Types; |
| 13 | use Cosray\Plugin; |
| 14 | use Generator; |
| 15 | use Iterator; |
| 16 | |
| 17 | final class Nodes implements Iterator |
| 18 | { |
| 19 | use CompilesField; |
| 20 | |
| 21 | private string $whereFields = ''; |
| 22 | private string $whereTypes = ''; |
| 23 | private string $order = ''; |
| 24 | private ?int $limit = null; |
| 25 | private ?int $offset = null; |
| 26 | private ?bool $deleted = false; // defaults to false, if all nodes are needed set $deleted to null |
| 27 | private ?bool $published = true; // ditto |
| 28 | private ?bool $hidden = false; // ditto |
| 29 | private array $whereParams = []; |
| 30 | private readonly array $builtins; |
| 31 | private Generator $result; |
| 32 | |
| 33 | public function __construct( |
| 34 | private readonly Context $context, |
| 35 | private readonly Cms $cms, |
| 36 | private readonly Factory $nodeFactory, |
| 37 | private readonly Types $types, |
| 38 | ) { |
| 39 | $this->builtins = [ |
| 40 | 'changed' => 'n.changed', |
| 41 | 'created' => 'n.created', |
| 42 | 'creator' => 'uc.uid', |
| 43 | 'editor' => 'ue.uid', |
| 44 | 'deleted' => 'n.deleted', |
| 45 | 'id' => 'n.uid', |
| 46 | 'locked' => 'n.locked', |
| 47 | 'published' => 'n.published', |
| 48 | 'hidden' => 'n.hidden', |
| 49 | 'parent' => 'np.uid', |
| 50 | 'routable' => $this->typeFlagExpression( |
| 51 | fn(string $class): bool => (bool) $this->types->get($class, 'routable', false), |
| 52 | ), |
| 53 | 'renderable' => $this->typeFlagExpression( |
| 54 | fn(string $class): bool => (bool) $this->types->get($class, 'renderable', false), |
| 55 | ), |
| 56 | 'type' => 't.handle', |
| 57 | 'handle' => 'h.handle', |
| 58 | 'uid' => 'n.uid', |
| 59 | ]; |
| 60 | } |
| 61 | |
| 62 | public function filter(string $query): self |
| 63 | { |
| 64 | $compiler = new QueryCompiler($this->context, $this->builtins); |
| 65 | $this->addWhere($compiler->compile($query)); |
| 66 | |
| 67 | return $this; |
| 68 | } |
| 69 | |
| 70 | public function search(string $query, array $fields): self |
| 71 | { |
| 72 | $query = trim($query); |
| 73 | |
| 74 | if ($query === '') { |
| 75 | return $this; |
| 76 | } |
| 77 | |
| 78 | $fields = array_values(array_filter(array_map('trim', $fields))); |
| 79 | |
| 80 | if ($fields === []) { |
| 81 | return $this; |
| 82 | } |
| 83 | |
| 84 | $terms = preg_split('/\s+/u', $query, -1, PREG_SPLIT_NO_EMPTY); |
| 85 | |
| 86 | if (!is_array($terms) || $terms === []) { |
| 87 | return $this; |
| 88 | } |
| 89 | |
| 90 | $expressions = array_map( |
| 91 | $this->fieldExpression(...), |
| 92 | $fields, |
| 93 | ); |
| 94 | $termClauses = []; |
| 95 | |
| 96 | foreach ($terms as $term) { |
| 97 | $needle = $this->context->db->quote('%' . $term . '%'); |
| 98 | $fieldClauses = array_map( |
| 99 | static fn(string $expression): string => "COALESCE(({$expression})::text, '') ILIKE {$needle}", |
| 100 | $expressions, |
| 101 | ); |
| 102 | |
| 103 | $termClauses[] = '(' . implode(' OR ', $fieldClauses) . ')'; |
| 104 | } |
| 105 | |
| 106 | $this->addWhere(implode(' AND ', $termClauses)); |
| 107 | |
| 108 | return $this; |
| 109 | } |
| 110 | |
| 111 | public function types(string ...$types): self |
| 112 | { |
| 113 | $this->whereTypes = $this->typesCondition($types); |
| 114 | |
| 115 | return $this; |
| 116 | } |
| 117 | |
| 118 | public function type(string $type): self |
| 119 | { |
| 120 | $this->whereTypes = $this->typesCondition([$type]); |
| 121 | |
| 122 | return $this; |
| 123 | } |
| 124 | |
| 125 | public function roots(): self |
| 126 | { |
| 127 | $this->addWhere('n.parent IS NULL'); |
| 128 | |
| 129 | return $this; |
| 130 | } |
| 131 | |
| 132 | public function childrenOf(string $uid): self |
| 133 | { |
| 134 | $uid = trim($uid); |
| 135 | |
| 136 | if ($uid === '') { |
| 137 | throw new RuntimeException('Parent uid is required'); |
| 138 | } |
| 139 | |
| 140 | $param = 'parent_uid_' . count($this->whereParams); |
| 141 | |
| 142 | $this->addWhere('np.uid = :' . $param); |
| 143 | $this->whereParams[$param] = $uid; |
| 144 | |
| 145 | return $this; |
| 146 | } |
| 147 | |
| 148 | public function order(string ...$order): self |
| 149 | { |
| 150 | $compiler = new OrderCompiler($this->builtins, $this->context); |
| 151 | $this->order = $compiler->compile(implode(',', $order)); |
| 152 | |
| 153 | return $this; |
| 154 | } |
| 155 | |
| 156 | public function limit(int $limit): self |
| 157 | { |
| 158 | $this->limit = $limit; |
| 159 | |
| 160 | return $this; |
| 161 | } |
| 162 | |
| 163 | public function offset(int $offset): self |
| 164 | { |
| 165 | $this->offset = $offset; |
| 166 | |
| 167 | return $this; |
| 168 | } |
| 169 | |
| 170 | public function count(): int |
| 171 | { |
| 172 | $record = $this->context |
| 173 | ->db |
| 174 | ->nodes |
| 175 | ->count($this->baseParams()) |
| 176 | ->one(); |
| 177 | |
| 178 | return (int) ($record['count'] ?? 0); |
| 179 | } |
| 180 | |
| 181 | public function published(?bool $published): self |
| 182 | { |
| 183 | $this->published = $published; |
| 184 | |
| 185 | return $this; |
| 186 | } |
| 187 | |
| 188 | public function hidden(?bool $hidden): self |
| 189 | { |
| 190 | $this->hidden = $hidden; |
| 191 | |
| 192 | return $this; |
| 193 | } |
| 194 | |
| 195 | public function deleted(?bool $deleted): self |
| 196 | { |
| 197 | $this->deleted = $deleted; |
| 198 | |
| 199 | return $this; |
| 200 | } |
| 201 | |
| 202 | public function rewind(): void |
| 203 | { |
| 204 | if (!isset($this->result)) { |
| 205 | $this->fetchResult(); |
| 206 | } |
| 207 | $this->result->rewind(); |
| 208 | } |
| 209 | |
| 210 | public function current(): Node |
| 211 | { |
| 212 | if (!isset($this->result)) { |
| 213 | $this->fetchResult(); |
| 214 | } |
| 215 | |
| 216 | $page = $this->result->current(); |
| 217 | |
| 218 | $page['content'] = json_decode($page['content'], true); |
| 219 | $page['editor_data'] = json_decode($page['editor_data'], true); |
| 220 | $page['creator_data'] = json_decode($page['creator_data'], true); |
| 221 | $page['paths'] = json_decode($page['paths'], true); |
| 222 | $class = $this->context |
| 223 | ->container |
| 224 | ->tag(Plugin::NODE_TAG) |
| 225 | ->entry($page['type_handle']) |
| 226 | ->definition(); |
| 227 | |
| 228 | $node = $this->nodeFactory->create($class, $this->context, $this->cms, $page); |
| 229 | |
| 230 | return $this->nodeFactory->proxy($node, $this->context->request, $this->context, $this->cms); |
| 231 | } |
| 232 | |
| 233 | public function key(): int |
| 234 | { |
| 235 | return $this->result->key(); |
| 236 | } |
| 237 | |
| 238 | public function next(): void |
| 239 | { |
| 240 | $this->result->next(); |
| 241 | } |
| 242 | |
| 243 | public function valid(): bool |
| 244 | { |
| 245 | return $this->result->valid(); |
| 246 | } |
| 247 | |
| 248 | private function fetchResult(): void |
| 249 | { |
| 250 | $params = $this->baseParams(); |
| 251 | |
| 252 | if ($this->order) { |
| 253 | $params['order'] = $this->order; |
| 254 | } |
| 255 | |
| 256 | if ($this->limit !== null) { |
| 257 | $params['limit'] = $this->limit; |
| 258 | } |
| 259 | |
| 260 | if ($this->offset !== null) { |
| 261 | $params['offset'] = $this->offset; |
| 262 | } |
| 263 | |
| 264 | $this->result = $this->context |
| 265 | ->db |
| 266 | ->nodes |
| 267 | ->find($params) |
| 268 | ->lazy(); |
| 269 | } |
| 270 | |
| 271 | private function baseParams(): array |
| 272 | { |
| 273 | $conditions = implode(' AND ', array_filter( |
| 274 | [ |
| 275 | trim($this->whereFields), |
| 276 | trim($this->whereTypes), |
| 277 | ], |
| 278 | static fn(string $clause): bool => $clause !== '', |
| 279 | )); |
| 280 | |
| 281 | $params = [ |
| 282 | 'condition' => $conditions, |
| 283 | ]; |
| 284 | |
| 285 | if ($this->whereParams !== []) { |
| 286 | $params = array_merge($params, $this->whereParams); |
| 287 | } |
| 288 | |
| 289 | if (is_bool($this->deleted)) { |
| 290 | $params['deleted'] = $this->deleted; |
| 291 | } |
| 292 | |
| 293 | if (is_bool($this->published)) { |
| 294 | $params['published'] = $this->published; |
| 295 | } |
| 296 | |
| 297 | if (is_bool($this->hidden)) { |
| 298 | $params['hidden'] = $this->hidden; |
| 299 | } |
| 300 | |
| 301 | return $params; |
| 302 | } |
| 303 | |
| 304 | private function addWhere(string $clause): void |
| 305 | { |
| 306 | $clause = trim($clause); |
| 307 | |
| 308 | if ($clause === '') { |
| 309 | return; |
| 310 | } |
| 311 | |
| 312 | if ($this->whereFields === '') { |
| 313 | $this->whereFields = $clause; |
| 314 | |
| 315 | return; |
| 316 | } |
| 317 | |
| 318 | $this->whereFields = "({$this->whereFields}) AND ({$clause})"; |
| 319 | } |
| 320 | |
| 321 | private function fieldExpression(string $field): string |
| 322 | { |
| 323 | $builtin = $this->builtins[$field] ?? null; |
| 324 | |
| 325 | if (is_string($builtin) && $builtin !== '') { |
| 326 | return $builtin; |
| 327 | } |
| 328 | |
| 329 | if (!preg_match('/^[A-Za-z][A-Za-z0-9._-]*$/', $field)) { |
| 330 | throw new RuntimeException('Invalid field name for search: ' . $field); |
| 331 | } |
| 332 | |
| 333 | return $this->compileField($field, 'n.content', localeIds: $this->localeIds()); |
| 334 | } |
| 335 | |
| 336 | private function localeIds(): array |
| 337 | { |
| 338 | $ids = []; |
| 339 | $locale = $this->context->locale(); |
| 340 | |
| 341 | while ($locale) { |
| 342 | $ids[] = $locale->id; |
| 343 | $locale = $locale->fallback(); |
| 344 | } |
| 345 | |
| 346 | return $ids; |
| 347 | } |
| 348 | |
| 349 | private function typesCondition(array $types): string |
| 350 | { |
| 351 | $result = []; |
| 352 | |
| 353 | foreach ($types as $type) { |
| 354 | if (class_exists($type)) { |
| 355 | $type = (string) $this->types->get($type, 'handle'); |
| 356 | } |
| 357 | |
| 358 | $result[] = 't.handle = ' . $this->context->db->quote($type); |
| 359 | } |
| 360 | |
| 361 | return match (count($result)) { |
| 362 | 0 => '', |
| 363 | 1 => ' ' . $result[0], |
| 364 | default => " (\n " . implode("\n OR ", $result) . "\n )", |
| 365 | }; |
| 366 | } |
| 367 | |
| 368 | private function typeFlagExpression(callable $flag): string |
| 369 | { |
| 370 | $handles = []; |
| 371 | $types = $this->context->container->tag(Plugin::NODE_TAG); |
| 372 | |
| 373 | foreach ($types->entries() as $handle) { |
| 374 | $class = $types->entry($handle)->definition(); |
| 375 | |
| 376 | if (!is_string($class) || !class_exists($class) || !$flag($class)) { |
| 377 | continue; |
| 378 | } |
| 379 | |
| 380 | $handles[] = $this->context->db->quote($handle); |
| 381 | } |
| 382 | |
| 383 | sort($handles); |
| 384 | |
| 385 | if ($handles === []) { |
| 386 | return 'FALSE'; |
| 387 | } |
| 388 | |
| 389 | return 't.handle IN (' . implode(', ', $handles) . ')'; |
| 390 | } |
| 391 | } |