api_handler = $api_handler; // Register shortcode and AJAX actions add_shortcode( 'adbkp_donation_form', [ $this, 'render_donation_form' ] ); add_action( 'wp_ajax_adbkp_process_donation', [ $this, 'process_donation' ] ); add_action( 'wp_ajax_nopriv_adbkp_process_donation', [ $this, 'process_donation' ] ); } /** * Renders the donation form using a template file. * * @return string The donation form HTML. */ public function render_donation_form() { ob_start(); $template_path = plugin_dir_path( __FILE__ ) . 'templates/donation-form-template.php'; if ( file_exists( $template_path ) ) { include $template_path; } else { echo '

' . esc_html__( 'Error: Donation form template not found.', 'accept-donations-with-bkash-payment' ) . '

'; } return ob_get_clean(); } /** * Processes the donation via AJAX. */ public function process_donation() { // Verify nonce for security $nonce = isset( $_POST['donation_nonce'] ) ? sanitize_text_field( wp_unslash( $_POST['donation_nonce'] ) ) : ''; if ( ! wp_verify_nonce( $nonce, 'adbkp_process_donation_nonce' ) ) { wp_send_json_error( [ 'message' => esc_html__( 'Invalid nonce. Please refresh the page and try again.', 'accept-donations-with-bkash-payment' ) ] ); } // Sanitize and validate the donation amount $amount = isset( $_POST['amount'] ) ? floatval( sanitize_text_field( wp_unslash( $_POST['amount'] ) ) ) : 0; if ( $amount <= 0 ) { wp_send_json_error( [ 'message' => esc_html__( 'Invalid donation amount.', 'accept-donations-with-bkash-payment' ) ] ); } // Initiate the payment through the API handler $result = $this->api_handler->initiate_payment( $amount ); if ( $result['success'] ) { wp_send_json_success( $result['data'] ); } else { wp_send_json_error( [ 'message' => esc_html( $result['message'] ) ] ); } } }