/**
* WCDE Pro bridge — license key storage/UI and the "PRO" admin badge.
*
* wcde_is_pro() defaults to FALSE here; only the separate Pro add-on (sold outside wp.org) flips
* it via the 'wcde_is_pro' filter, by reading the status this file stores after a real check.
*
* Validation goes through a proxy on tarkva.com
*
* recheck() (the daily cron) tolerates a run of technical failures before changing a valid
* license's status, so a brief tarkva.com outage doesn't look like a license problem to a
* correctly-licensed customer. A genuine rejection from a reachable server is still immediate.
* activate() always reports its real result immediately — it's a deliberate, on-demand action.
*/
if ( ! defined( 'ABSPATH' ) ) { exit; }
if ( ! defined( 'WCDE_LICENSE_API_BASE' ) ) { define( 'WCDE_LICENSE_API_BASE', 'https://tarkva.com' ); }
function wcde_is_pro() {
return (bool) apply_filters( 'wcde_is_pro', false );
}
class WCDE_Pro {
const KEY_OPTION = 'wcde_license_key';
const STATUS_OPTION = 'wcde_license_status'; // 'valid' | 'expired' | 'error' | ''
const DETAIL_OPTION = 'wcde_license_detail';
const CHECKED_OPTION = 'wcde_license_checked_at';
const FAIL_COUNT_OPTION = 'wcde_license_fail_count';
const CRON_HOOK = 'wcde_cron_license_check';
public static function store_url() {
return apply_filters( 'wcde_store_url', 'https://tarkva.com' );
}
public static function badge( $label = 'PRO' ) {
return ' '
. esc_html( $label ) . '';
}
public static function max_free_tiers() {
return (int) apply_filters( 'wcde_max_free_tiers', 2 );
}
public static function key() { return (string) get_option( self::KEY_OPTION, '' ); }
public static function status() { return (string) get_option( self::STATUS_OPTION, '' ); }
public static function detail() { return get_option( self::DETAIL_OPTION, array() ); }
public static function checked_at() { return (string) get_option( self::CHECKED_OPTION, '' ); }
public static function mask( $key ) {
$key = (string) $key;
if ( strlen( $key ) <= 4 ) { return $key ? str_repeat( '•', strlen( $key ) ) : ''; }
return str_repeat( '•', max( 4, strlen( $key ) - 4 ) ) . substr( $key, -4 );
}
private static function api_base() { return untrailingslashit( apply_filters( 'wcde_license_api_base', WCDE_LICENSE_API_BASE ) ); }
private static function configured() { return '' !== self::api_base(); }
/** @return array{ok:bool, http_code:int, data:array, message:string} */
private static function call( $action, $key ) {
if ( ! self::configured() ) {
return array( 'ok' => false, 'http_code' => 0, 'data' => array(), 'message' => 'License API is not configured yet.' );
}
$url = self::api_base() . '/wp-json/tarkva/v1/license/' . $action . '/' . rawurlencode( $key );
$response = wp_remote_get( $url, array( 'timeout' => 12 ) );
if ( is_wp_error( $response ) ) {
return array( 'ok' => false, 'http_code' => 0, 'data' => array(), 'message' => $response->get_error_message() );
}
$code = (int) wp_remote_retrieve_response_code( $response );
$body = json_decode( (string) wp_remote_retrieve_body( $response ), true );
if ( ! is_array( $body ) ) {
return array( 'ok' => false, 'http_code' => $code, 'data' => array(), 'message' => 'Unexpected response from the license server.' );
}
if ( $code < 200 || $code >= 300 ) {
$msg = $body['message'] ?? sprintf( 'License server returned HTTP %d.', $code );
return array( 'ok' => false, 'http_code' => $code, 'data' => $body, 'message' => (string) $msg );
}
return array( 'ok' => true, 'http_code' => $code, 'data' => $body, 'message' => '' );
}
private static function extract_license( array $data ) {
if ( isset( $data['data'] ) && is_array( $data['data'] ) ) { return $data['data']; }
return $data;
}
private static function store_result( $key, array $result ) {
if ( $result['ok'] ) {
$lic = self::extract_license( $result['data'] );
$exp = $lic['expiresAt'] ?? ( $lic['expires_at'] ?? null );
$status = 'valid';
if ( $exp && strtotime( (string) $exp ) && strtotime( (string) $exp ) < time() ) { $status = 'expired'; }
update_option( self::KEY_OPTION, $key );
update_option( self::STATUS_OPTION, $status );
update_option( self::DETAIL_OPTION, $lic );
} else {
update_option( self::STATUS_OPTION, 'error' );
update_option( self::DETAIL_OPTION, array( 'error' => $result['message'] ) );
}
update_option( self::CHECKED_OPTION, current_time( 'mysql' ) );
update_option( self::FAIL_COUNT_OPTION, 0 );
}
public static function activate( $key ) {
$key = sanitize_text_field( wp_unslash( $key ) );
if ( '' === $key ) { return 'Enter a license key.'; }
$result = self::call( 'activate', $key );
self::store_result( $key, $result );
return $result['ok'] ? 'License activated.' : ( 'Activation failed: ' . $result['message'] );
}
public static function deactivate() {
$key = self::key();
if ( '' !== $key ) { self::call( 'deactivate', $key ); } // best-effort
delete_option( self::KEY_OPTION );
delete_option( self::STATUS_OPTION );
delete_option( self::DETAIL_OPTION );
delete_option( self::CHECKED_OPTION );
delete_option( self::FAIL_COUNT_OPTION );
}
private static function grace_failures() {
return max( 1, (int) apply_filters( 'wcde_license_grace_failures', 5 ) );
}
public static function recheck() {
$key = self::key();
if ( '' === $key ) { return; }
$result = self::call( 'validate', $key );
if ( $result['ok'] ) { self::store_result( $key, $result ); return; }
$technical_failure = ( 0 === $result['http_code'] || $result['http_code'] >= 500 );
if ( ! $technical_failure ) { self::store_result( $key, $result ); return; }
$fails = (int) get_option( self::FAIL_COUNT_OPTION, 0 ) + 1;
update_option( self::FAIL_COUNT_OPTION, $fails );
if ( $fails >= self::grace_failures() ) { self::store_result( $key, $result ); }
}
public static function features() {
return array(
'Stock & velocity intelligence — discount slow/overstocked items earlier, comfortable sellers later',
'Unlimited discount tiers per type (free plan: only the 2 closest to the expiry deadline)',
'Cart price-split — full price above the discounted batch quantity (revenue protection)',
'Advanced notices — general/cart reminders, quantity display, custom CSS placement',
'Scheduled & automated backups',
'Revenue-recovered reporting, with an optional weekly email summary',
'Priority email support',
);
}
}
add_action( 'init', function () {
if ( ! wp_next_scheduled( WCDE_Pro::CRON_HOOK ) ) {
wp_schedule_event( time() + HOUR_IN_SECONDS, 'daily', WCDE_Pro::CRON_HOOK );
}
} );
add_action( WCDE_Pro::CRON_HOOK, array( 'WCDE_Pro', 'recheck' ) );
register_deactivation_hook( __FILE__, function () { wp_clear_scheduled_hook( WCDE_Pro::CRON_HOOK ); } );