<?php
declare( strict_types = 1 );
namespace Automattic\WooCommerce\Internal\EmailEditor;
use Automattic\WooCommerce\EmailEditor\Validator\Builder;
use Automattic\WooCommerce\Internal\EmailEditor\WCTransactionalEmails\WCTransactionalEmailPostsManager;
use WC_Email;
use WP_Error;
defined( 'ABSPATH' ) || exit;
/**
* API Controller for managing WooCommerce email templates via extending the post type API.
*
* @internal
*/
class EmailApiController {
/**
* A list of WooCommerce emails.
*
* @var \WC_Email[]
*/
private array $emails;
/**
* The WooCommerce transactional email post manager.
*
* @var WCTransactionalEmailPostsManager|null
*/
private ?WCTransactionalEmailPostsManager $post_manager;
/**
* Initialize the controller.
*
* @internal
*/
final public function init(): void {
$this->emails = WC()->mailer()->get_emails();
$this->post_manager = WCTransactionalEmailPostsManager::get_instance();
}
/**
* Returns the data from wp_options table for the given post.
*
* @param array $post_data - Post data.
* @return array - The email data.
*/
public function get_email_data( $post_data ): array {
$email_type = $this->post_manager->get_email_type_from_post_id( $post_data['id'] );
$email = $this->get_email_by_type( $email_type ?? '' );
// When the email type is not found, it means that the email type is not supported.
if ( ! $email ) {
return array(
'subject' => null,
'subject_full' => null,
'subject_partial' => null,
'preheader' => null,
'default_subject' => null,
'email_type' => null,
'recipient' => null,
'cc' => null,
'bcc' => null,
);
}
$form_fields = $email->get_form_fields();
$enabled = $email->get_option( 'enabled' );
return array(
'enabled' => is_null( $enabled ) ? $email->is_enabled() : 'yes' === $enabled,
'is_manual' => $email->is_manual(),
'subject' => $email->get_option( 'subject' ),
'subject_full' => $email->get_option( 'subject_full' ), // For customer_refunded_order email type because it has two different subjects.
'subject_partial' => $email->get_option( 'subject_partial' ),
'preheader' => $email->get_option( 'preheader' ),
'default_subject' => $email->get_default_subject(),
'email_type' => $email_type,
// Recipient is possible to set only for the specific type of emails. When the field `recipient` is set in the form fields, it means that the email type has a recipient field.
'recipient' => array_key_exists( 'recipient', $form_fields ) ? $email->get_option( 'recipient', get_option( 'admin_email' ) ) : null,
'cc' => $email->get_option( 'cc' ),
'bcc' => $email->get_option( 'bcc' ),
);
}
/**
* Update WooCommerce specific option data by post name.
*
* @param array $data - Data that are stored in the wp_options table.
* @param \WP_Post $post - WP_Post object.
* @return \WP_Error|null Returns WP_Error if email validation fails, null otherwise.
*/
public function save_email_data( array $data, \WP_Post $post ): ?\WP_Error {
$error = $this->validate_email_data( $data );
if ( is_wp_error( $error ) ) {
return new \WP_Error( 'invalid_email_data', implode( ' ', $error->get_error_messages() ), array( 'status' => 400 ) );
}
if ( ! array_key_exists( 'subject', $data ) && ! array_key_exists( 'preheader', $data ) ) {
return null;
}
$email_type = $this->post_manager->get_email_type_from_post_id( $post->ID );
$email = $this->get_email_by_type( $email_type ?? '' );
if ( ! $email ) {
return null; // not saving of type wc_email. Allow process to continue.
}
// Handle customer_refunded_order email type because it has two different subjects.
if ( 'customer_refunded_order' === $email_type ) {
if ( array_key_exists( 'subject_full', $data ) ) {
$email->update_option( 'subject_full', $data['subject_full'] );
}
if ( array_key_exists( 'subject_partial', $data ) ) {
$email->update_option( 'subject_partial', $data['subject_partial'] );
}
} elseif ( array_key_exists( 'subject', $data ) ) {
$email->update_option( 'subject', $data['subject'] );
}
if ( array_key_exists( 'preheader', $data ) ) {
$email->update_option( 'preheader', $data['preheader'] );
}
if ( array_key_exists( 'enabled', $data ) ) {
$email->update_option( 'enabled', $data['enabled'] ? 'yes' : 'no' );
}
if ( array_key_exists( 'recipient', $data ) ) {
$email->update_option( 'recipient', $data['recipient'] );
}
if ( array_key_exists( 'cc', $data ) ) {
$email->update_option( 'cc', $data['cc'] );
}
if ( array_key_exists( 'bcc', $data ) ) {
$email->update_option( 'bcc', $data['bcc'] );
}
return null;
}
/**
* Validate the email data.
*
* @param array $data - The email data.
* @return \WP_Error|null Returns WP_Error if email validation fails, null otherwise.
*/
private function validate_email_data( array $data ) {
$error = new \WP_Error();
// Validate 'recipient' email(s) field.
$invalid_recipients = $this->filter_invalid_email_addresses( $data['recipient'] ?? '' );
if ( ! empty( $invalid_recipients ) ) {
$error_message = sprintf(
// translators: %s will be replaced by comma-separated email addresses. For example, "[email protected],[email protected]".
__( 'One or more Recipient email addresses are invalid: “%s”. Please enter valid email addresses separated by commas.', 'woocommerce' ),
implode( ',', $invalid_recipients )
);
$error->add( 'invalid_recipient_email_address', $error_message );
}
// Validate 'cc' email(s) field.
$invalid_cc = $this->filter_invalid_email_addresses( $data['cc'] ?? '' );
if ( ! empty( $invalid_cc ) ) {
$error_message = sprintf(
// translators: %s will be replaced by comma-separated email addresses. For example, "[email protected],[email protected]".
__( 'One or more CC email addresses are invalid: “%s”. Please enter valid email addresses separated by commas.', 'woocommerce' ),
implode( ',', $invalid_cc )
);
$error->add( 'invalid_cc_email_address', $error_message );
}
// Validate 'bcc' email(s) field.
$invalid_bcc = $this->filter_invalid_email_addresses( $data['bcc'] ?? '' );
if ( ! empty( $invalid_bcc ) ) {
$error_message = sprintf(
// translators: %s will be replaced by comma-separated email addresses. For example, "[email protected],[email protected]".
__( 'One or more BCC email addresses are invalid: “%s”. Please enter valid email addresses separated by commas.', 'woocommerce' ),
implode( ',', $invalid_bcc )
);
$error->add( 'invalid_bcc_email_address', $error_message );
}
if ( $error->has_errors() ) {
return $error;
}
return null;
}
/**
* Filter in invalid email addresses from a comma-separated string.
*
* @param string $comma_separated_email_addresses - A comma-separated string of email addresses.
* @return array - An array of invalid email addresses.
*/
private function filter_invalid_email_addresses( $comma_separated_email_addresses ) {
$invalid_email_addresses = array();
if ( empty( trim( $comma_separated_email_addresses ) ) ) {
return $invalid_email_addresses;
}
foreach ( explode( ',', $comma_separated_email_addresses ) as $email_address ) {
if ( ! filter_var( trim( $email_address ), FILTER_VALIDATE_EMAIL ) ) {
$invalid_email_addresses[] = trim( $email_address );
}
}
return $invalid_email_addresses;
}
/**
* Get the schema for the WooCommerce email post data.
*
* @return array
*/
public function get_email_data_schema(): array {
return Builder::object(
array(
'subject' => Builder::string()->nullable(),
'subject_full' => Builder::string()->nullable(), // For customer_refunded_order email type because it has two different subjects.
'subject_partial' => Builder::string()->nullable(),
'preheader' => Builder::string()->nullable(),
'default_subject' => Builder::string()->nullable(),
'email_type' => Builder::string()->nullable(),
'recipient' => Builder::string()->nullable(),
'cc' => Builder::string()->nullable(),
'bcc' => Builder::string()->nullable(),
)
)->to_array();
}
/**
* Get the email object by ID.
*
* @param string $id - The email ID.
* @return \WC_Email|null - The email object or null if not found.
*/
private function get_email_by_type( ?string $id ): ?WC_Email {
foreach ( $this->emails as $email ) {
if ( $email->id === $id ) {
return $email;
}
}
return null;
}
}