808b2509d8
Implements ADR-0002: canonical peptide schema as shared data layer for the peptiderepo.com ecosystem. All Tier 1 tools (Reconstitution Calculator, Dosage Reference, Legal Status Tracker, PSA enhancements) build on this. Includes: - pr_peptide CPT with REST, taxonomies, 11 meta fields - 3 custom tables: pr_dosing_rows, pr_legal_cells, pr_ai_candidate_queue - Sequential migration runner with schema versioning - 4 typed DTOs and 4 repository classes (full CRUD) - REST API (pr-core/v1): 6 endpoints (read public, write auth-gated) - Admin UI: 3 meta boxes, custom columns, AI candidate queue page - Shared disclaimer component (shortcode + static API) - JSON-LD Drug schema emission on single peptide pages - Seed data fixture (3 peptides, 10 dosing rows, 5 legal cells) - Full teardown in uninstall.php - CI: PHP lint 8.0-8.2, PHPCS WordPress, 300-line check All 22 PHP files under 300 lines. Highest: peptide-cpt at 265. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
126 lines
3.0 KiB
PHP
126 lines
3.0 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* JSON-LD / schema.org structured data emission for peptide pages.
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*
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* What: Emits Drug schema on single peptide pages, Dataset schema on archives.
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* Who calls it: PR_Core::init() registers wp_head hook.
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* Dependencies: PR_Core_Peptide_Repository for data lookup.
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*
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* Consumer plugins can override via pr_core_jsonld_peptide filter.
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*
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* @see ARCHITECTURE.md — Section 2.7 JSON-LD output.
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*/
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class PR_Core_Jsonld {
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/**
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* Register hooks for JSON-LD output.
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*
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* @return void
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*/
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public function register_hooks(): void {
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add_action( 'wp_head', [ $this, 'emit_jsonld' ], 99 );
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}
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/**
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* Emit JSON-LD on peptide single pages.
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*
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* Side effects: outputs script tag in wp_head.
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*
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* @return void
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*/
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public function emit_jsonld(): void {
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if ( ! is_singular( PR_Core_Peptide_CPT::POST_TYPE ) ) {
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return;
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}
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$post_id = get_the_ID();
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if ( ! $post_id ) {
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return;
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}
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$repo = new PR_Core_Peptide_Repository();
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$peptide = $repo->find_by_id( $post_id );
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if ( ! $peptide ) {
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return;
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}
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$schema = $this->build_drug_schema( $peptide );
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/**
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* Filter the JSON-LD schema for a peptide page.
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*
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* @param array<string, mixed> $schema Schema.org data array.
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* @param PR_Core_Peptide_DTO $peptide The peptide DTO.
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*/
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$schema = apply_filters( 'pr_core_jsonld_peptide', $schema, $peptide );
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if ( empty( $schema ) ) {
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return;
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}
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printf(
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'<script type="application/ld+json">%s</script>' . "\n",
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wp_json_encode( $schema, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT )
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);
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}
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/**
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* Build a schema.org Drug object for a peptide.
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*
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* @param PR_Core_Peptide_DTO $peptide Peptide data.
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* @return array<string, mixed> Schema.org JSON-LD structure.
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*/
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private function build_drug_schema( PR_Core_Peptide_DTO $peptide ): array {
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$schema = [
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'@context' => 'https://schema.org',
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'@type' => 'Drug',
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'name' => $peptide->display_name ?: $peptide->title,
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'url' => get_permalink( $peptide->id ),
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'description' => $peptide->excerpt,
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];
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if ( ! empty( $peptide->aliases ) ) {
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$schema['alternateName'] = $peptide->aliases;
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}
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if ( '' !== $peptide->molecular_formula ) {
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$schema['molecularFormula'] = $peptide->molecular_formula;
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}
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if ( $peptide->molecular_weight > 0 ) {
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$schema['molecularWeight'] = [
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'@type' => 'QuantitativeValue',
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'value' => $peptide->molecular_weight,
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'unitText' => 'Da',
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];
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}
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// External identifiers as codes.
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$codes = [];
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if ( '' !== $peptide->cas_number ) {
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$codes[] = [
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'@type' => 'MedicalCode',
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'codeValue' => $peptide->cas_number,
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'codingSystem' => 'CAS',
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];
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}
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if ( '' !== $peptide->drugbank_id ) {
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$codes[] = [
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'@type' => 'MedicalCode',
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'codeValue' => $peptide->drugbank_id,
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'codingSystem' => 'DrugBank',
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];
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}
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if ( ! empty( $codes ) ) {
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$schema['code'] = $codes;
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}
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return $schema;
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}
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}
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