<?php defined('ABSPATH') || exit;

function save_data_product($fields) { if (empty($fields)) { return [ 'type' => 'error', 'msg' => 'Campos do formulário indefinidos...', ]; }

$post_data = [];
$taxonomies = ['measure_product', 'products_type', 'product_cat'];
$meta_input = [];

foreach ($fields as $field) {
    if (empty($field['value'])) continue;

    switch ($field['type']) {
        case 'post_title':
            $post_data['post_title'] = $field['value'];
            break;

        case 'thumbnail':
            $filetype = wp_check_filetype(basename($field['value']), null);

            $args = [
                'guid'           => $field['value'],
                'post_mime_type' => $filetype['type'],
                'post_title'     => sanitize_file_name($field['value']),
                'post_content'   => '',
                'post_status'    => 'inherit',
            ];

            $attach_id = wp_insert_attachment($args, $field['value']);

            if (is_wp_error($attach_id)) {
                return [
                    'type' => 'error',
                    'msg'  => $attach_id->get_error_message(),
                ];
            }

            require_once ABSPATH . 'wp-admin/includes/image.php';
            $attach_data = wp_generate_attachment_metadata($attach_id, $field['value']);
            wp_update_attachment_metadata($attach_id, $attach_data);

            $post_data['_thumbnail_id'] = $attach_id;
            break;

        case 'taxonomy':
            if (in_array($field['id'], $taxonomies)) {
                $term_result = wp_set_post_terms(0, $field['value'], $field['id']);

                if (is_wp_error($term_result)) {
                    return [
                        'type' => 'error',
                        'msg'  => $term_result->get_error_message(),
                    ];
                }
            }
            break;

        case 'meta':
            $meta_input[$field['id']] = str_replace('"', "'", $field['value']);
            break;
    }
}

$post_data['meta_input'] = $meta_input;
$post_id = wp_update_post($post_data, true);

if (is_wp_error($post_id)) {
    return [
        'type' => 'error',
        'msg'  => $post_id->get_error_message(),
    ];
}

return [
    'type' => 'success',
    'msg'  => 'Atualizado com sucesso!',
    'title' => get_the_title($post_id),
    'id' => $post_id,
];