ttings.', 'wpforms-lite' );
		}

		// Check for required customer email.
		if ( ! $error && empty( $this->fields[ $settings['email'] ]['value'] ) ) {
			$error = esc_html__( 'Stripe subscription payment stopped, customer email not found.', 'wpforms-lite' );
		}

		// Before proceeding, check if any basic errors were detected.
		if ( $error ) {
			$this->log_error( $error );
			$this->display_error( $error );

			return false;
		}

		return true;
	}

	/**
	 * Process subscription API call.
	 *
	 * @since 1.8.4
	 *
	 * @param array $args Prepared subscription arguments.
	 */
	protected function process_subscription( $args ) {

		$this->subscription_settings = $args['settings'];

		if ( ! Helpers::is_license_ok() && Helpers::is_application_fee_supported() ) {
			$args['application_fee_percent'] = 3;
		}

		$this->api->process_subscription( $args );

		// Set payment processing flag.
		$this->is_payment_processed = true;

		// Update the credit card field value to contain basic details.
		$this->update_credit_card_field_value();

		$this->process_api_error( 'subscription' );
	}

	/**
	 * Get base subscription arguments.
	 *
	 * @since 1.8.4
	 *
	 * @return array
	 */
	protected function get_base_subscription_args() {

		return [
			'form_id'    => $this->form_id,
			'form_title' => sanitize_text_field( $this->form_data['settings']['form_title'] ),
			'amount'     => $this->amount * Helpers::get_decimals_amount(),
		];
	}
}