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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Panel; |
| 6 | |
| 7 | use Closure; |
| 8 | use Cosray\Block\Layout; |
| 9 | use Cosray\Block\Placement; |
| 10 | use Cosray\DateTime\Codec; |
| 11 | use Cosray\Field\Blocks; |
| 12 | use Cosray\Field\Field; |
| 13 | use Cosray\Uid; |
| 14 | use DateTimeZone; |
| 15 | |
| 16 | /** |
| 17 | * Patches stored node content with submitted editor form data. |
| 18 | * |
| 19 | * The form is a per-field patch, never a reconstruction: only fields the |
| 20 | * form actually carries are replaced, unknown keys inside the stored |
| 21 | * content survive untouched. Primitive leaves are cast according to the |
| 22 | * field's control descriptor; rich fields submit their complete value |
| 23 | * (and optionally meta) as one JSON string under the [json] key. |
| 24 | * |
| 25 | * An immutable field is never patched. The form renders it read-only, so |
| 26 | * whatever the submission carries for it has no authority. |
| 27 | */ |
| 28 | final class FormPatch |
| 29 | { |
| 30 | /** @param list<array<string, mixed>> $fields field property payloads incl. control descriptors */ |
| 31 | public function __construct( |
| 32 | private readonly array $fields, |
| 33 | private readonly Uid $uid = new Uid(Uid::ALPHABET_LOWERCASE_WORD_SAFE, 13), |
| 34 | ) {} |
| 35 | |
| 36 | /** |
| 37 | * @param array<string, mixed> $stored |
| 38 | * @param array<array-key, mixed> $submitted |
| 39 | * @return array<string, mixed> |
| 40 | */ |
| 41 | public function content(array $stored, array $submitted): array |
| 42 | { |
| 43 | foreach ($this->fields as $field) { |
| 44 | $name = $field['name'] ?? null; |
| 45 | |
| 46 | if (!is_string($name) || !is_array($submitted[$name] ?? null)) { |
| 47 | continue; |
| 48 | } |
| 49 | |
| 50 | if ($field['immutable'] ?? false) { |
| 51 | continue; |
| 52 | } |
| 53 | |
| 54 | $entry = $stored[$name] ?? ['type' => $field['type'] ?? null, 'value' => []]; |
| 55 | $patched = $this->entry( |
| 56 | $field['control'] ?? [], |
| 57 | $field['metaControl'] ?? null, |
| 58 | $entry, |
| 59 | $submitted[$name], |
| 60 | ); |
| 61 | |
| 62 | if ($patched !== null) { |
| 63 | $stored[$name] = $patched; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | return $stored; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * @param array<string, mixed> $control |
| 72 | * @param ?array<string, mixed> $metaControl |
| 73 | * @param array<array-key, mixed> $entry |
| 74 | * @param array<array-key, mixed> $submitted |
| 75 | * @return ?array<array-key, mixed> |
| 76 | */ |
| 77 | private function entry(array $control, ?array $metaControl, array $entry, array $submitted): ?array |
| 78 | { |
| 79 | $json = $submitted['json'] ?? null; |
| 80 | |
| 81 | if (is_string($json)) { |
| 82 | $decoded = json_decode($json, true); |
| 83 | |
| 84 | if (!is_array($decoded)) { |
| 85 | return null; |
| 86 | } |
| 87 | |
| 88 | if (array_key_exists('value', $decoded)) { |
| 89 | $entry['value'] = $decoded['value']; |
| 90 | } |
| 91 | |
| 92 | if (array_key_exists('meta', $decoded)) { |
| 93 | $entry['meta'] = $decoded['meta']; |
| 94 | } |
| 95 | |
| 96 | // Format envelope of structured richtext values. |
| 97 | foreach (['format', 'version'] as $key) { |
| 98 | if (isset($decoded[$key])) { |
| 99 | $entry[$key] = $decoded[$key]; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | return $entry; |
| 104 | } |
| 105 | |
| 106 | $changed = false; |
| 107 | $value = $submitted['value'] ?? null; |
| 108 | |
| 109 | // A blocks value keeps the grid it was placed on; its rows are read |
| 110 | // against that count, not the field's default. |
| 111 | if (($control['name'] ?? null) === 'blocks') { |
| 112 | $default = is_int($control['props']['columns'] ?? null) ? $control['props']['columns'] : 1; |
| 113 | $columns = Blocks::storedColumns( |
| 114 | is_numeric($submitted['columns'] ?? null) ? (int) $submitted['columns'] : null, |
| 115 | Blocks::storedColumns($entry['columns'] ?? null, $default), |
| 116 | ); |
| 117 | $control['props']['columns'] = $columns; |
| 118 | $entry['columns'] = $columns; |
| 119 | } |
| 120 | |
| 121 | if (is_array($value)) { |
| 122 | $stored = is_array($entry['value'] ?? null) ? $entry['value'] : []; |
| 123 | $timezone = $this->timezone($entry); |
| 124 | |
| 125 | foreach ($value as $locale => $raw) { |
| 126 | $stored[$locale] = $this->cast($control, $raw, $stored[$locale] ?? null, $timezone); |
| 127 | } |
| 128 | |
| 129 | $entry['value'] = $stored; |
| 130 | $changed = true; |
| 131 | } |
| 132 | |
| 133 | $meta = $submitted['meta'] ?? null; |
| 134 | |
| 135 | if (is_array($meta) && is_array($metaControl)) { |
| 136 | $entry['meta'] = $this->meta( |
| 137 | $metaControl, |
| 138 | is_array($entry['meta'] ?? null) ? $entry['meta'] : [], |
| 139 | $meta, |
| 140 | ); |
| 141 | $changed = true; |
| 142 | } |
| 143 | |
| 144 | return $changed ? $entry : null; |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Replace the meta entries the metaControl group knows; unknown |
| 149 | * stored meta keys survive. |
| 150 | * |
| 151 | * @param array<string, mixed> $metaControl |
| 152 | * @param array<array-key, mixed> $stored |
| 153 | * @param array<array-key, mixed> $submitted |
| 154 | * @return array<array-key, mixed> |
| 155 | */ |
| 156 | private function meta(array $metaControl, array $stored, array $submitted): array |
| 157 | { |
| 158 | foreach ($metaControl['props']['fields'] ?? [] as $sub) { |
| 159 | $key = $sub['key'] ?? null; |
| 160 | |
| 161 | if (!is_string($key) || !is_array($submitted[$key] ?? null)) { |
| 162 | continue; |
| 163 | } |
| 164 | |
| 165 | $map = is_array($stored[$key] ?? null) ? $stored[$key] : []; |
| 166 | |
| 167 | foreach ($submitted[$key] as $locale => $raw) { |
| 168 | $map[$locale] = $this->cast($sub['control'] ?? [], $raw, $map[$locale] ?? null); |
| 169 | } |
| 170 | |
| 171 | $stored[$key] = $map; |
| 172 | } |
| 173 | |
| 174 | return $stored; |
| 175 | } |
| 176 | |
| 177 | /** @param array<string, mixed> $control */ |
| 178 | private function cast( |
| 179 | array $control, |
| 180 | mixed $raw, |
| 181 | mixed $stored, |
| 182 | ?DateTimeZone $timezone = null, |
| 183 | ): mixed { |
| 184 | $name = $control['name'] ?? ''; |
| 185 | $props = $control['props'] ?? []; |
| 186 | |
| 187 | if ($name === 'group') { |
| 188 | // Replace only the keys the descriptor knows; anything else |
| 189 | // stored inside the group survives. |
| 190 | $result = is_array($stored) ? $stored : []; |
| 191 | |
| 192 | foreach ($props['fields'] ?? [] as $sub) { |
| 193 | $key = $sub['key'] ?? null; |
| 194 | |
| 195 | if (!is_string($key) || !is_array($raw) || !array_key_exists($key, $raw)) { |
| 196 | continue; |
| 197 | } |
| 198 | |
| 199 | $result[$key] = $this->cast( |
| 200 | $sub['control'] ?? [], |
| 201 | $raw[$key], |
| 202 | $result[$key] ?? null, |
| 203 | $timezone, |
| 204 | ); |
| 205 | } |
| 206 | |
| 207 | return $result; |
| 208 | } |
| 209 | |
| 210 | if ($name === 'repeater') { |
| 211 | // Lists are replaced wholesale; index gaps left by removed |
| 212 | // rows are normalized away. |
| 213 | $item = $props['item'] ?? []; |
| 214 | |
| 215 | return array_map( |
| 216 | fn(mixed $rawItem): mixed => $this->cast($item, $rawItem, null, $timezone), |
| 217 | is_array($raw) ? array_values($raw) : [], |
| 218 | ); |
| 219 | } |
| 220 | |
| 221 | if ($name === 'entries' || $name === 'blocks') { |
| 222 | $rows = is_array($raw) ? array_values($raw) : []; |
| 223 | $stored = is_array($stored) ? $stored : []; |
| 224 | |
| 225 | return $name === 'entries' |
| 226 | ? $this->entries($props, $rows, $stored) |
| 227 | : $this->blocks($props, $rows, $stored); |
| 228 | } |
| 229 | |
| 230 | return match ($name) { |
| 231 | 'checkbox' => $props['nullable'] ?? false |
| 232 | ? match ($raw) { |
| 233 | '', null => null, |
| 234 | '1', true => true, |
| 235 | '0', false => false, |
| 236 | default => $raw, |
| 237 | } |
| 238 | : $raw === '1' || $raw === 'on' || $raw === true, |
| 239 | 'number' => is_numeric($raw) ? (float) $raw : null, |
| 240 | 'datetime' => $this->datetime($raw, $timezone ?? Codec::utc()), |
| 241 | default => is_scalar($raw) ? (string) $raw : null, |
| 242 | }; |
| 243 | } |
| 244 | |
| 245 | private function datetime(mixed $raw, DateTimeZone $timezone): mixed |
| 246 | { |
| 247 | if (!is_scalar($raw)) { |
| 248 | return null; |
| 249 | } |
| 250 | |
| 251 | $value = (string) $raw; |
| 252 | |
| 253 | return Codec::fromInput($value, $timezone) ?? Codec::normalize($value) ?? $value; |
| 254 | } |
| 255 | |
| 256 | /** @param array<array-key, mixed> $entry */ |
| 257 | private function timezone(array $entry): DateTimeZone |
| 258 | { |
| 259 | $timezone = $entry['meta']['timezone'] ?? null; |
| 260 | |
| 261 | if (is_array($timezone)) { |
| 262 | $timezone = $timezone[Field::NEUTRAL_LOCALE] ?? null; |
| 263 | } |
| 264 | |
| 265 | return Codec::timezone($timezone) ?? Codec::utc(); |
| 266 | } |
| 267 | |
| 268 | /** |
| 269 | * @param array<string, mixed> $props |
| 270 | * @param list<mixed> $rows |
| 271 | * @param array<array-key, mixed> $stored |
| 272 | * @return list<array<array-key, mixed>> |
| 273 | */ |
| 274 | private function entries(array $props, array $rows, array $stored): array |
| 275 | { |
| 276 | return $this->rows( |
| 277 | self::rowTypes($props['entryTypes'] ?? []), |
| 278 | $rows, |
| 279 | $stored, |
| 280 | static fn(array $storedRow, array $row, string $uid, string $type, array $fields): array => [ |
| 281 | ...$storedRow, |
| 282 | 'uid' => $uid, |
| 283 | 'type' => $type, |
| 284 | 'fields' => $fields, |
| 285 | ], |
| 286 | ); |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * Block rows add the layout — ints clamped into the area the block is |
| 291 | * laid out on, the field's grid or the split it sits in, so a stored |
| 292 | * out-of-range value the editor loaded saves back clamped, where the |
| 293 | * shape would reject it — and the block meta map, patched like a |
| 294 | * field's meta against the descriptor's meta group. Blocks are matched |
| 295 | * by uid against every stored block, so one the editor moved into or |
| 296 | * out of a split keeps whatever the form does not carry. |
| 297 | * |
| 298 | * @param array<string, mixed> $props |
| 299 | * @param list<mixed> $rows |
| 300 | * @param array<array-key, mixed> $stored |
| 301 | * @return list<mixed> |
| 302 | */ |
| 303 | private function blocks(array $props, array $rows, array $stored): array |
| 304 | { |
| 305 | $columns = is_int($props['columns'] ?? null) && $props['columns'] > 0 ? $props['columns'] : 1; |
| 306 | $min = is_int($props['min'] ?? null) && $props['min'] > 0 ? min($props['min'], $columns) : 1; |
| 307 | $metaControl = is_array($props['meta'] ?? null) ? $props['meta'] : null; |
| 308 | $types = self::rowTypes($props['blockTypes'] ?? []); |
| 309 | $known = $stored; |
| 310 | |
| 311 | foreach ($stored as $storedRow) { |
| 312 | if (is_array($storedRow) && is_array($storedRow['blocks'] ?? null)) { |
| 313 | array_push($known, ...array_values($storedRow['blocks'])); |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | // The blocks of a split have no position, not even one stored from |
| 318 | // before they were moved into it. |
| 319 | $block = fn(int $columns, int $rowspan, bool $part = false): Closure => fn( |
| 320 | array $storedRow, |
| 321 | array $row, |
| 322 | string $uid, |
| 323 | string $type, |
| 324 | array $fields, |
| 325 | ): array => $this->withMeta( |
| 326 | [ |
| 327 | ...$storedRow, |
| 328 | 'uid' => $uid, |
| 329 | 'type' => $type, |
| 330 | 'layout' => self::area( |
| 331 | Layout::normalize(self::layout($storedRow, $row), $columns, $min, $rowspan), |
| 332 | $part, |
| 333 | ), |
| 334 | 'fields' => $fields, |
| 335 | ], |
| 336 | $storedRow, |
| 337 | $row, |
| 338 | $metaControl, |
| 339 | ); |
| 340 | |
| 341 | // A row that arrives without a position gets one below the others. |
| 342 | return Placement::rows( |
| 343 | $this->rows( |
| 344 | $types, |
| 345 | $rows, |
| 346 | $known, |
| 347 | $block($columns, Layout::MAX_ROWSPAN), |
| 348 | function (array $storedRow, array $row, string $uid) use ( |
| 349 | $types, |
| 350 | $known, |
| 351 | $block, |
| 352 | $columns, |
| 353 | $min, |
| 354 | $metaControl, |
| 355 | ): ?array { |
| 356 | $layout = Layout::normalize(self::layout($storedRow, $row), $columns, $min); |
| 357 | $blocks = $this->rows( |
| 358 | $types, |
| 359 | array_values($row['blocks']), |
| 360 | $known, |
| 361 | $block($layout->colspan, $layout->rowspan, part: true), |
| 362 | ); |
| 363 | |
| 364 | // A split holds two blocks at least; the one left takes its place. |
| 365 | if (count($blocks) < 2) { |
| 366 | return $blocks === [] ? null : [...$blocks[0], 'layout' => $layout->array()]; |
| 367 | } |
| 368 | |
| 369 | return $this->withMeta( |
| 370 | [...$storedRow, 'uid' => $uid, 'layout' => $layout->array(), 'blocks' => $blocks], |
| 371 | $storedRow, |
| 372 | $row, |
| 373 | $metaControl, |
| 374 | ); |
| 375 | }, |
| 376 | ), |
| 377 | $columns, |
| 378 | $min, |
| 379 | ); |
| 380 | } |
| 381 | |
| 382 | /** @return array{colspan: int, rowspan: int, col?: int, row?: int} */ |
| 383 | private static function area(Layout $layout, bool $part): array |
| 384 | { |
| 385 | return $part ? new Layout($layout->colspan, $layout->rowspan)->array() : $layout->array(); |
| 386 | } |
| 387 | |
| 388 | /** |
| 389 | * The stored layout with the submitted dimensions over it. |
| 390 | * |
| 391 | * @param array<array-key, mixed> $storedRow |
| 392 | * @param array<array-key, mixed> $row |
| 393 | * @return array<array-key, mixed> |
| 394 | */ |
| 395 | private static function layout(array $storedRow, array $row): array |
| 396 | { |
| 397 | return [ |
| 398 | ...(is_array($storedRow['layout'] ?? null) ? $storedRow['layout'] : []), |
| 399 | ...(is_array($row['layout'] ?? null) ? $row['layout'] : []), |
| 400 | ]; |
| 401 | } |
| 402 | |
| 403 | /** |
| 404 | * @param array<array-key, mixed> $result |
| 405 | * @param array<array-key, mixed> $storedRow |
| 406 | * @param array<array-key, mixed> $row |
| 407 | * @param ?array<string, mixed> $metaControl |
| 408 | * @return array<array-key, mixed> |
| 409 | */ |
| 410 | private function withMeta(array $result, array $storedRow, array $row, ?array $metaControl): array |
| 411 | { |
| 412 | if ($metaControl !== null && is_array($row['meta'] ?? null)) { |
| 413 | $result['meta'] = $this->meta( |
| 414 | $metaControl, |
| 415 | is_array($storedRow['meta'] ?? null) ? $storedRow['meta'] : [], |
| 416 | $row['meta'], |
| 417 | ); |
| 418 | } |
| 419 | |
| 420 | return $result; |
| 421 | } |
| 422 | |
| 423 | /** |
| 424 | * Rows are replaced wholesale like a repeater, but each row's fields |
| 425 | * are patched like a group: rows are matched to their stored |
| 426 | * counterpart by uid, so unknown keys survive edits and reorders. |
| 427 | * `$build` assembles the row from the matched stored row (empty when |
| 428 | * the type changed), the submitted row, the uid and the patched fields. |
| 429 | * A row without a type carrying `blocks` goes to `$split` when one is |
| 430 | * given, with its stored counterpart unless that one is a block; a |
| 431 | * null from it drops the row. |
| 432 | * |
| 433 | * @param array<string, array<array-key, mixed>> $types row type descriptors keyed by class |
| 434 | * @param array<array-key, mixed> $rows |
| 435 | * @param array<array-key, mixed> $stored |
| 436 | * @param Closure(array<array-key, mixed>, array<array-key, mixed>, string, string, array<array-key, mixed>): array<array-key, mixed> $build |
| 437 | * @param ?Closure(array<array-key, mixed>, array<array-key, mixed>, string): ?array<array-key, mixed> $split |
| 438 | * @return list<array<array-key, mixed>> |
| 439 | */ |
| 440 | private function rows(array $types, array $rows, array $stored, Closure $build, ?Closure $split = null): array |
| 441 | { |
| 442 | $byUid = []; |
| 443 | |
| 444 | foreach ($stored as $storedRow) { |
| 445 | $uid = is_array($storedRow) ? $storedRow['uid'] ?? null : null; |
| 446 | |
| 447 | if (is_string($uid) && $uid !== '') { |
| 448 | $byUid[$uid] = $storedRow; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | $result = []; |
| 453 | |
| 454 | foreach ($rows as $row) { |
| 455 | if (!is_array($row)) { |
| 456 | continue; |
| 457 | } |
| 458 | |
| 459 | $type = $row['type'] ?? null; |
| 460 | $isSplit = $split !== null && $type === null && is_array($row['blocks'] ?? null); |
| 461 | |
| 462 | if (!$isSplit && (!is_string($type) || !isset($types[$type]))) { |
| 463 | continue; |
| 464 | } |
| 465 | |
| 466 | $uid = $row['uid'] ?? null; |
| 467 | |
| 468 | if (!is_string($uid) || $uid === '') { |
| 469 | // The client fills fresh uids on stamped rows; this is the |
| 470 | // safety net for rows arriving without one. |
| 471 | $uid = $this->uid->generate(); |
| 472 | } |
| 473 | |
| 474 | $storedRow = $byUid[$uid] ?? []; |
| 475 | |
| 476 | if ($isSplit) { |
| 477 | $built = $split(isset($storedRow['type']) ? [] : $storedRow, $row, $uid); |
| 478 | |
| 479 | if ($built !== null) { |
| 480 | $result[] = $built; |
| 481 | } |
| 482 | |
| 483 | continue; |
| 484 | } |
| 485 | |
| 486 | if (($storedRow['type'] ?? null) !== $type) { |
| 487 | $storedRow = []; |
| 488 | } |
| 489 | |
| 490 | $fields = is_array($storedRow['fields'] ?? null) ? $storedRow['fields'] : []; |
| 491 | $submitted = is_array($row['fields'] ?? null) ? $row['fields'] : []; |
| 492 | |
| 493 | foreach ($types[$type]['fields'] ?? [] as $sub) { |
| 494 | $subName = $sub['name'] ?? null; |
| 495 | |
| 496 | if (!is_string($subName) || !is_array($submitted[$subName] ?? null)) { |
| 497 | continue; |
| 498 | } |
| 499 | |
| 500 | $entry = is_array($fields[$subName] ?? null) |
| 501 | ? $fields[$subName] |
| 502 | : ['type' => $sub['type'] ?? null, 'value' => []]; |
| 503 | $patched = $this->entry( |
| 504 | is_array($sub['control'] ?? null) ? $sub['control'] : [], |
| 505 | is_array($sub['metaControl'] ?? null) ? $sub['metaControl'] : null, |
| 506 | $entry, |
| 507 | $submitted[$subName], |
| 508 | ); |
| 509 | |
| 510 | if ($patched !== null) { |
| 511 | $fields[$subName] = $patched; |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | $result[] = $build($storedRow, $row, $uid, $type, $fields); |
| 516 | } |
| 517 | |
| 518 | return $result; |
| 519 | } |
| 520 | |
| 521 | /** @return array<string, array<array-key, mixed>> */ |
| 522 | private static function rowTypes(mixed $types): array |
| 523 | { |
| 524 | $result = []; |
| 525 | |
| 526 | foreach (is_array($types) ? $types : [] as $type) { |
| 527 | if (is_array($type) && is_string($type['type'] ?? null)) { |
| 528 | $result[$type['type']] = $type; |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | return $result; |
| 533 | } |
| 534 | } |