feat: lit/divi-outline and lit/divi-node-get with tree_rev

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7
2026-09-26 12:14:38 +02:00
parent a54a337e0b
commit d27504a750
9 changed files with 677 additions and 1 deletions
@@ -0,0 +1,144 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Divi\Pages;
+
+use LIT\MCP\Abilities\Ability;
+use LIT\MCP\Abilities\Errors;
+use LIT\MCP\Abilities\JsonMap;
+use LIT\MCP\Integrations\Divi\BlockTree\AttrMap;
+use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
+use LIT\MCP\Integrations\Divi\BlockTree\NodeSummary;
+use LIT\MCP\Integrations\Divi\Design\DesignSystemReader;
+use LIT\MCP\Integrations\Divi\Schema\ShortformMap;
+use WP_Error;
+
+/**
+ * lit/divi-node-get: all attributes of one node in the full form (spec §5.4, §5.7) –
+ * attribute path => breakpoint map – plus the current short-form values.
+ */
+final class DiviNodeGetAbility implements Ability
+{
+    public function __construct(private DiviPageLoader $loader, private DesignSystemReader $design)
+    {
+    }
+
+    public function name(): string
+    {
+        return 'lit/divi-node-get';
+    }
+
+    public function label(): string
+    {
+        return 'Divi-Knoten lesen';
+    }
+
+    public function description(): string
+    {
+        return 'Liest einen Knoten der Divi-Seite vollständig: attrs als Attributpfad → Werte je Breakpoint '
+            . '(Vollform, z. B. "title.decoration.font.font": {"desktop": {"value": {…}}}), die Kurzform-Werte, '
+            . 'Presets und die IDs der Kinder. Pfad-IDs aus lit-divi-outline.';
+    }
+
+    public function inputSchema(): array
+    {
+        return [
+            'type' => 'object',
+            'properties' => [
+                'post_id' => ['type' => 'integer', 'minimum' => 1],
+                'id' => ['type' => 'string', 'description' => 'Pfad-ID aus lit-divi-outline, z. B. "s0.r0.c1.m2".'],
+            ],
+            'required' => ['post_id', 'id'],
+            'additionalProperties' => false,
+        ];
+    }
+
+    public function outputSchema(): ?array
+    {
+        return [
+            'type' => 'object',
+            'properties' => [
+                'post_id' => ['type' => 'integer'],
+                'tree_rev' => ['type' => 'string'],
+                'id' => ['type' => 'string'],
+                'parent' => ['type' => ['string', 'null']],
+                'type' => ['type' => 'string'],
+                'label' => ['type' => 'string'],
+                'editable' => ['type' => 'boolean'],
+                'attrs' => ['type' => 'object'],
+                'shortform' => ['type' => 'object'],
+                'presets' => [
+                    'type' => 'array',
+                    'items' => [
+                        'type' => 'object',
+                        'properties' => ['id' => ['type' => 'string'], 'name' => ['type' => 'string']],
+                        'required' => ['id', 'name'],
+                    ],
+                ],
+                'builder_version' => ['type' => ['string', 'null']],
+                'children' => ['type' => 'array', 'items' => ['type' => 'string']],
+            ],
+            'required' => ['post_id', 'tree_rev', 'id', 'type', 'editable', 'attrs', 'shortform', 'children'],
+        ];
+    }
+
+    public function annotations(): array
+    {
+        return ['readonly' => true, 'destructive' => false, 'idempotent' => true];
+    }
+
+    public function isDirect(): bool
+    {
+        return true;
+    }
+
+    public function permission(array $input): bool|WP_Error
+    {
+        $page = $this->loader->load($input['post_id'] ?? null, false);
+
+        return $page instanceof WP_Error ? $page : true;
+    }
+
+    public function execute(array $input): mixed
+    {
+        $page = $this->loader->load($input['post_id'] ?? null, false);
+        if ($page instanceof WP_Error) {
+            return $page;
+        }
+
+        $id = is_string($input['id'] ?? null) ? $input['id'] : '';
+        if (preg_match(NodeIndex::ID_PATTERN, $id) !== 1) {
+            return Errors::invalidInput('id ist keine Pfad-ID.', ['id' => 'z. B. "s0.r1.c0.m2"']);
+        }
+
+        $block = $page->index->find($id);
+        if ($block === null) {
+            return DiviPageLoader::unknownNode($id, $page->post);
+        }
+
+        $names = $this->design->read()->presetNames();
+        $editable = $block->isDivi() && ! $block->isOpaque();
+        $version = $block->attrs()['builderVersion'] ?? null;
+
+        return [
+            'post_id' => (int) $page->post->ID,
+            'tree_rev' => $page->treeRev(),
+            'id' => $id,
+            'parent' => $page->index->parentId($block),
+            'type' => $block->name(),
+            'label' => NodeSummary::label($block),
+            'editable' => $editable,
+            'attrs' => JsonMap::of(AttrMap::flatten($block->attrs())),
+            'shortform' => JsonMap::of(ShortformMap::values($block->shortName(), $block->attrs())),
+            'presets' => array_map(
+                static fn (string $presetId): array => ['id' => $presetId, 'name' => $names[$presetId] ?? ''],
+                NodeSummary::presetIds($block)
+            ),
+            'builder_version' => is_string($version) ? $version : null,
+            'children' => $editable
+                ? array_values(array_filter(array_map([$page->index, 'idOf'], $block->children())))
+                : [],
+        ];
+    }
+}
@@ -0,0 +1,160 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Divi\Pages;
+
+use LIT\MCP\Abilities\Ability;
+use LIT\MCP\Abilities\Rev;
+use LIT\MCP\Integrations\Divi\BlockTree\Outline;
+use LIT\MCP\Integrations\Divi\Design\DesignSystemReader;
+use WP_Error;
+
+/**
+ * lit/divi-outline: the page tree with path IDs, types, admin labels, text excerpts and
+ * preset names plus tree_rev (spec §5.3, §5.7). Every Divi write needs this tree_rev.
+ */
+final class DiviOutlineAbility implements Ability
+{
+    public function __construct(private DiviPageLoader $loader, private DesignSystemReader $design)
+    {
+    }
+
+    public function name(): string
+    {
+        return 'lit/divi-outline';
+    }
+
+    public function label(): string
+    {
+        return 'Divi-Seitenbaum';
+    }
+
+    public function description(): string
+    {
+        return 'Liest den Aufbau einer Divi-Seite: Knoten mit Pfad-ID (s0, s0.r1, s0.r1.c0.m2), Modultyp, '
+            . 'Admin-Label, Textauszug und Preset. Liefert tree_rev – Pflicht für jede Divi-Änderung. '
+            . 'Optional nur ein Teilbaum (id) oder begrenzte Tiefe (depth).';
+    }
+
+    public function inputSchema(): array
+    {
+        return [
+            'type' => 'object',
+            'properties' => [
+                'post_id' => ['type' => 'integer', 'minimum' => 1],
+                'id' => ['type' => 'string', 'description' => 'Nur diesen Teilbaum, z. B. "s1".'],
+                'depth' => [
+                    'type' => 'integer',
+                    'minimum' => 0,
+                    'maximum' => 10,
+                    'description' => 'Maximale Tiefe unterhalb des Startknotens (0 = nur der Knoten).',
+                ],
+            ],
+            'required' => ['post_id'],
+            'additionalProperties' => false,
+        ];
+    }
+
+    public function outputSchema(): ?array
+    {
+        return [
+            'type' => 'object',
+            'properties' => [
+                'post_id' => ['type' => 'integer'],
+                'title' => ['type' => 'string'],
+                'status' => ['type' => 'string'],
+                'tree_rev' => ['type' => 'string'],
+                'rev' => ['type' => 'string'],
+                'outline' => ['type' => 'string'],
+                'nodes' => [
+                    'type' => 'array',
+                    'items' => [
+                        'type' => 'object',
+                        'properties' => [
+                            'id' => ['type' => 'string'],
+                            'type' => ['type' => 'string'],
+                            'label' => ['type' => 'string'],
+                            'excerpt' => ['type' => 'string'],
+                            'info' => ['type' => 'string'],
+                            'presets' => ['type' => 'array', 'items' => ['type' => 'string']],
+                            'children' => ['type' => 'integer'],
+                            'editable' => ['type' => 'boolean'],
+                            'depth' => ['type' => 'integer'],
+                        ],
+                        'required' => ['id', 'type', 'label', 'excerpt', 'editable', 'depth'],
+                    ],
+                ],
+                'edit_url' => ['type' => 'string'],
+                'hints' => ['type' => 'array', 'items' => ['type' => 'string']],
+            ],
+            'required' => ['post_id', 'tree_rev', 'rev', 'outline', 'nodes', 'hints'],
+        ];
+    }
+
+    public function annotations(): array
+    {
+        return ['readonly' => true, 'destructive' => false, 'idempotent' => true];
+    }
+
+    public function isDirect(): bool
+    {
+        return true;
+    }
+
+    public function permission(array $input): bool|WP_Error
+    {
+        $page = $this->loader->load($input['post_id'] ?? null, false);
+
+        return $page instanceof WP_Error ? $page : true;
+    }
+
+    public function execute(array $input): mixed
+    {
+        $page = $this->loader->load($input['post_id'] ?? null, false);
+        if ($page instanceof WP_Error) {
+            return $page;
+        }
+
+        $rootId = isset($input['id']) && is_string($input['id']) && $input['id'] !== '' ? $input['id'] : null;
+        if ($rootId !== null && $page->index->find($rootId) === null) {
+            return DiviPageLoader::unknownNode($rootId, $page->post);
+        }
+
+        $outline = new Outline($this->design->read()->presetNames());
+        $rows = $outline->rows($page->index, $rootId, isset($input['depth']) ? (int) $input['depth'] : null);
+
+        return [
+            'post_id' => (int) $page->post->ID,
+            'title' => (string) $page->post->post_title,
+            'status' => (string) $page->post->post_status,
+            'tree_rev' => $page->treeRev(),
+            'rev' => Rev::ofPost($page->post),
+            'outline' => $outline->text($rows),
+            'nodes' => $rows,
+            'edit_url' => $page->editUrl(),
+            'hints' => $this->hints($page, $rows),
+        ];
+    }
+
+    /**
+     * @param list<array<string, mixed>> $rows
+     * @return list<string>
+     */
+    private function hints(DiviPage $page, array $rows): array
+    {
+        $hints = [];
+        if ($rows === []) {
+            $hints[] = $page->isDiviLayout()
+                ? 'Die Seite hat noch keinen Divi-Inhalt.'
+                : 'Der Inhalt ist kein Divi-Layout (Block-Editor oder klassisch); lit-content-get zeigt ihn.';
+        }
+
+        if (in_array(false, array_column($rows, 'editable'), true)) {
+            $hints[] = 'Knoten mit "nur lesbar" (globale Module, fremde Blöcke) ändern die Divi-Werkzeuge nicht; '
+                . 'ihren Inhalt nur im Divi-Builder bearbeiten.';
+        }
+
+        return $hints;
+    }
+}
@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Divi\Pages;
+
+use LIT\MCP\Abilities\Rev;
+use LIT\MCP\Integrations\Divi\BlockTree\Document;
+use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
+use WP_Post;
+
+/**
+ * An entry loaded for the Divi tools: the post, its parsed tree, the path index and the
+ * tree_rev (hash of post_content – the optimistic lock of the Divi tools, ruling P16; the
+ * post-level lock stays `rev` = Rev::ofPost()).
+ */
+final class DiviPage
+{
+    public function __construct(
+        public readonly WP_Post $post,
+        public readonly Document $document,
+        public readonly NodeIndex $index
+    ) {
+    }
+
+    public function treeRev(): string
+    {
+        return Rev::of((string) $this->post->post_content);
+    }
+
+    /** Whether post_content is a Divi 5 layout (or empty, so a first section can be added). */
+    public function isDiviLayout(): bool
+    {
+        $content = (string) $this->post->post_content;
+
+        return trim($content) === '' || str_contains($content, '<!-- wp:divi/');
+    }
+
+    public function editUrl(): string
+    {
+        return (string) add_query_arg('et_fb', '1', (string) get_permalink($this->post));
+    }
+}
@@ -0,0 +1,102 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Divi\Pages;
+
+use LIT\MCP\Abilities\Errors;
+use LIT\MCP\Integrations\Divi\BlockTree\MalformedMarkup;
+use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
+use LIT\MCP\Integrations\Divi\BlockTree\Parser;
+use LIT\MCP\Integrations\WordPress\PostGuard;
+use LIT\MCP\Integrations\WordPress\Schema\ContentSchema;
+use WP_Error;
+use WP_Post;
+
+/**
+ * Loads an entry for the Divi tools: rights and status via PostGuard (spec §4.5), then the
+ * block tree. Divi 4 shortcode content and unbalanced markup are refused with a hint –
+ * spec §3.4: Divi 4 content is kept, never edited. Not final so abilities can be tested
+ * with a mock.
+ */
+class DiviPageLoader
+{
+    public const OUTLINE_HINT = 'Aktuellen Stand mit lit/divi-outline (direkt: lit-divi-outline) neu lesen und die '
+        . 'Änderung mit der neuen tree_rev wiederholen.';
+
+    public function __construct(private ContentSchema $schema, private Parser $parser = new Parser())
+    {
+    }
+
+    /** Readers pass $forWrite = false (trashed entries may be read, like lit-content-get). */
+    public function load(mixed $postId, bool $forWrite): DiviPage|WP_Error
+    {
+        $post = PostGuard::editable($postId, $this->schema, 'post_id', ! $forWrite);
+        if ($post instanceof WP_Error) {
+            return $post;
+        }
+
+        $content = (string) $post->post_content;
+        if (! str_contains($content, '<!-- wp:divi/') && str_contains($content, '[et_pb_')) {
+            return Errors::unsupported(
+                sprintf(
+                    'Eintrag %d enthält Divi-4-Inhalt (Shortcodes); die Divi-Werkzeuge bearbeiten nur Divi 5.',
+                    $post->ID
+                ),
+                'Die Seite einmal im Divi-Builder öffnen und speichern – Divi 5 wandelt sie dabei um. Bis dahin '
+                    . 'bleibt der Inhalt unverändert.'
+            );
+        }
+
+        try {
+            $document = $this->parser->parse($content);
+        } catch (MalformedMarkup $e) {
+            $message = sprintf('[wp-lit-mcp] divi parse of post %d failed: %s', $post->ID, $e->getMessage());
+            error_log($message); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
+
+            return Errors::unsupported(
+                sprintf(
+                    'Der Inhalt von Eintrag %d ist kein gültiges Block-Markup; nichts wurde gelesen oder geändert.',
+                    $post->ID
+                ),
+                'Die Seite im Divi-Builder öffnen und speichern (Divi repariert dabei die Struktur) oder den Nutzer '
+                    . 'fragen, ob eine frühere Revision (lit/revisions-list) wiederhergestellt werden soll.'
+            );
+        }
+
+        return new DiviPage($post, $document, NodeIndex::build($document));
+    }
+
+    /**
+     * Additional checks for writing: the type must use the Divi builder, the content must be a
+     * Divi 5 layout (or empty) and saving must not publish a missed schedule (spec §2).
+     */
+    public function writable(DiviPage $page): ?WP_Error
+    {
+        $post = $page->post;
+        if (! $this->schema->diviEnabled((string) $post->post_type)) {
+            return Errors::unsupported(
+                sprintf('Für den Inhaltstyp "%s" ist der Divi-Builder nicht aktiviert.', $post->post_type),
+                'In Divi → Theme-Optionen → Builder den Builder für diesen Inhaltstyp aktivieren (Administrator).'
+            );
+        }
+
+        if (! $page->isDiviLayout()) {
+            return Errors::unsupported(
+                sprintf('Eintrag %d ist kein Divi-Layout (Block-Editor- oder klassischer Inhalt).', $post->ID),
+                'Den Inhalt mit lit/content-update (direkt: lit-content-update) bearbeiten, oder den Nutzer fragen, ob '
+                    . 'die Seite im Divi-Builder neu aufgebaut werden soll.'
+            );
+        }
+
+        return PostGuard::statusStable($post);
+    }
+
+    public static function unknownNode(string $id, WP_Post $post): WP_Error
+    {
+        return Errors::notFound(
+            sprintf('Knoten "%s" gibt es in Eintrag %d nicht.', $id, $post->ID),
+            self::OUTLINE_HINT
+        );
+    }
+}