665d7fa9e1
Squash-merge of PR #22: adopt shared reusable CI workflow, convert PHPUnit to stubs, update branch-protection contexts.
QA-approved at 05d8094a1d. All required CI checks green.
Agent-Session: 2026-06-17-prcore-ci-deploy
117 lines
3.2 KiB
PHP
117 lines
3.2 KiB
PHP
<?php
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/**
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* Jsonld Faq.
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*
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* @package Peptide_Repo_Core
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*/
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declare(strict_types=1);
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/**
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* Reads _pr_faq_items post-meta (JSON array of {question, answer} objects)
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*
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* @package Peptide_Repo_Core
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*/
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/**
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* Builds the schema.org FAQPage graph piece for a peptide page.
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*
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* What: Reads _pr_faq_items post-meta (JSON array of {question, answer} objects)
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* and produces a FAQPage node suitable for injection into Yoast's graph.
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* Emits nothing when the meta is empty or absent.
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*
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* Who calls it: PR_Core_Jsonld::build_faq_piece() during graph assembly.
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* Dependencies: WordPress get_post_meta(), get_permalink().
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*
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* @see frontend/class-pr-core-jsonld.php — Orchestrator that calls this builder.
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* @see cpt/class-pr-core-schema-sanitizers.php — sanitize_faq_items() used on save.
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* @see ARCHITECTURE.md — §2.7 JSON-LD output.
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*/
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class PR_Core_Jsonld_Faq {
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/**
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* Meta key holding the FAQ items JSON array.
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*
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* @var string Meta key holding the FAQ items JSON array.
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*/
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public const META_FAQ_ITEMS = '_pr_faq_items';
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/**
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* Build a FAQPage node for a post, or return null if no items exist.
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*
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* @param int $post_id WordPress post ID.
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* @param string $permalink Canonical permalink for @id construction.
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* @return array<string, mixed>|null FAQPage schema node, or null when no items.
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*/
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public function build( int $post_id, string $permalink ): ?array {
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$items = $this->get_validated_items( $post_id );
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if ( empty( $items ) ) {
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return null;
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}
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return array(
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'@type' => 'FAQPage',
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'@id' => $permalink . '#faq',
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'mainEntity' => array_map( array( $this, 'build_question' ), $items ),
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);
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}
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/**
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* Build a single Question node from a FAQ item array.
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*
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* @param array{question: string, answer: string} $item Sanitized FAQ item.
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* @return array<string, mixed> Schema.org Question node.
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*/
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private function build_question( array $item ): array {
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return array(
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'@type' => 'Question',
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'name' => esc_html( $item['question'] ),
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'acceptedAnswer' => array(
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'@type' => 'Answer',
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'text' => esc_html( $item['answer'] ),
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),
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);
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}
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/**
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* Read and validate _pr_faq_items meta, returning only well-formed items.
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*
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* Returns empty array when meta is absent, empty, or malformed.
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* Does not trust stored values — re-validates each item at read time.
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*
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* @param int $post_id WordPress post ID.
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* @return array<int, array{question: string, answer: string}> Validated items.
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*/
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private function get_validated_items( int $post_id ): array {
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$raw = get_post_meta( $post_id, self::META_FAQ_ITEMS, true );
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if ( ! is_string( $raw ) || '' === $raw ) {
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return array();
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}
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$decoded = json_decode( $raw, true );
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if ( ! is_array( $decoded ) || empty( $decoded ) ) {
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return array();
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}
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$valid = array();
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foreach ( $decoded as $item ) {
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if ( ! is_array( $item ) ) {
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continue;
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}
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$question = sanitize_text_field( (string) ( $item['question'] ?? '' ) );
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$answer = sanitize_textarea_field( (string) ( $item['answer'] ?? '' ) );
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if ( '' !== $question && '' !== $answer ) {
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$valid[] = array(
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'question' => $question,
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'answer' => $answer,
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);
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}
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}
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return $valid;
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}
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}
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