protected function prepare() {

		if ( empty( $this->settings['id'] ) ) {
			$this->settings['id'] = uniqid( 'llms-field-' );
		}

		$this->prepare_wrapper_classes();

		$this->settings['classes'] = $this->classes_ensure_array( $this->settings['classes'] );

		// Allow setting `disabled` to `true` to disable the field.
		if ( true === $this->settings['disabled'] ) {
			$this->settings['disabled'] = 'disabled';
		}

		// Allow setting `required` to `true` to make the field required the field.
		if ( true === $this->settings['required'] ) {
			$this->settings['required'] = 'required';
		}

		// When name is `false` we don't want to output a name on the field.
		if ( false !== $this->settings['name'] ) {
			// Use the field id as the name if name isn't specified.
			$this->settings['name'] = empty( $this->settings['name'] ) ? $this->settings['id'] : $this->settings['name'];
		}

		// When `data_store_key` is false we won't automatically store or populate the field.
		if ( false !== $this->settings['data_store_key'] && empty( $this->settings['data_store_key'] ) ) {
			$this->prepare_storage();
		}

		// Add preset options.
		if ( $this->settings['options_preset'] ) {
			$this->prepare_options_from_preset();
		} elseif ( ! empty( $this->settings['options'] ) ) {
			$this->settings['options'] = $this->prepare_options( $this->settings['options'] );
		}

		$this->prepare_value();

		if ( 'llms-password-strength-meter' === $this->settings['id'] ) {
			$this->prepare_password_strength_meter();
		} elseif ( 'llms_voucher' === $this->settings['id'] ) {
			$this->prepare_voucher();
		}

	}