Arquitetura de conteúdo e scaffold PHP para import em escala

<?php
declare( strict_types=1 );

require_once __DIR__ . '/../../../wp-load.php';

final class Exam_Importer {
    public function __construct( private string $source ) {}

    public function run(): void {
        $rows = json_decode( file_get_contents( $this->source ), true );
        foreach ( $rows as $row ) {
            $hash = md5( serialize( $row ) );
            $existing = get_page_by_path( $row['slug'], OBJECT, 'exame_medico' );

            if ( $existing && get_post_meta( $existing->ID, '_source_hash', true ) === $hash ) {
                continue; // Nenhuma mudança, pula
            }

            $id = wp_insert_post( $this->map_fields( $row, $existing->ID ?? 0 ) );
            update_post_meta( $id, '_source_hash', $hash );
            $this->apply_taxonomy( $id, $row['category'] );
        }
    }

    private function map_fields( array $row, int $id = 0 ): array {
        return [
            'ID'           => $id ?: 0,
            'post_type'    => 'exame_medico',
            'post_status'  => 'publish',
            'post_title'   => $row['title'],
            'post_name'    => $row['slug'],
            'post_content' => $row['body'],
            'meta_input'   => [
                '_cpt_indication'  => $row['indication'],
                '_cpt_preparation' => $row['preparation'],
                '_cpt_references'  => $row['references'],
            ],
        ];
    }

    private function apply_taxonomy( int $post_id, string $category ): void {
        wp_set_object_terms( $post_id, $category, 'exam_category', false );
    }
}

( new Exam_Importer( __DIR__ . '/data/exames.json' ) )->run();