charset=UTF-8' . "\r\n";

		// Send email to user.
		$email_sent = wp_mail( $email_fields['email_to'], $email_fields['email_subject'], $email_fields['email_content'], $headers );

		$response['sent_user_email'] = $email_sent;

		// Send email to admin.
		if ( isset( $settings['enable_admin_email'] ) && 'yes' === $settings['enable_admin_email'] ) {
			// translators: %s: site name and admin email.
			$admin_headers = sprintf( 'From: %s <%s>' . "\r\n", $blogname, $admin_email );
			// translators: %s: admin email.
			$admin_headers .= sprintf( 'Reply-To: %s' . "\r\n", $admin_email );
			$admin_headers .= 'Content-Type: text/html; charset=UTF-8' . "\r\n";

			$admin_email_sent = wp_mail( $email_fields['admin_email_to'], $email_fields['admin_email_subject'], $email_fields['admin_email_content'], $admin_headers );

			$response['sent_admin_email'] = $admin_email_sent;
		}

		/**
		 * Fires just after the notification email sent.
		 *
		 * @since 1.5.0
		 *
		 * @param object $settings  Module settings.
		 */
		do_action( 'pp_rf_email_sent', $settings );

		if ( ! $email_sent || ( isset( $admin_email_sent ) && ! $admin_email_sent ) ) {
			$response['code']    = 'email_failed';
			$response['message'] = __( 'An error occurred sending email!', 'powerpack' );
			$response['error']   = true;
		}

		return $response;
	}

	/**
	 * Sanitize field.
	 *
	 * Sanitizes the field value.
	 *
	 * @since 1.5.0
	 * @access private
	 *
	 * @param array  $field  An array of field data.
	 * @param string $value  Field value.
	 *
	 * @return string   $value  Sanitized field value.
	 */
	private function sanitize_field( $field, $value ) {
		$field_type = $field['type'];

		switch ( $field_type ) {
			case 'text':
			case 'password':
			case 'hidden':
			case 'search':
			case 'checkbox':
			case 'radio':
			case 'select':
				$value = sanitize_text_field( $value );
				break;
			case 'url':
				$value = esc_url_raw( $value );
				break;
			case 'textarea':
				$value = sanitize_textarea_field( $value );
				break;
			case 'email':
				$value = sanitize_email( $value );
				break;
			default:
				$value = apply_filters( "pp_rf_sanitize_{$field_type}", $value, $field );
		}

		return $value;
	}

	/**
	 * Replace tags.
	 *
	 * Replaces merge tags in fields with their original value.
	 *
	 * @since 1.5.0
	 * @access private
	 *
	 * @param string $field_value  Field value.
	 * @param Object $widget       Widget object.
	 * @return string   $value     Original field value.
	 */
	private function replace_tags( $field_value, $widget ) {
		$site_info = $widget->get_site_info();

		return preg_replace_callback(
			'/{{(.*?)}}/i',
			function( $matches ) use ( $site_info ) {
				$value = $matches[0];

				if ( isset( $this->form_fields[ $matches[1] ] ) ) {
					$value = $this->form_fields[ $matches[1] ]['value'];
				} elseif ( isset( $site_info[ $matches[1] ] ) ) {
					$value = $site_info[ $matches[1] ];
				}

				return $value;
			},
			$field_value
		);
	}

	/**
	 * Replace content tags.
	 *
	 * Replaces merge tags in email content field with their value.
	 *
	 * @since 1.5.0
	 * @access private
	 *
	 * @param string $email_content     Email content.
	 *
	 * @return string $email_content    Email content with actual value.
	 */
	private function replace_content_tags( $email_content ) {
		$email_content = do_shortcode( $email_content );

		$all_fields_tag = '{{all-fields}}';

		if ( false !== strpos( $email_content, $all_fields_tag ) ) {
			$text = '<br>';
			foreach ( $this->form_fields as $field ) {
				$text .= $this->field_formatted( $field ) . '<br>';
			}

			$email_content = str_replace( $all_fields_tag, $text, $email_content );
		}

		return $email_content;
	}

	/**
	 * Field formatted.
	 *
	 * Returns field value with it's label.
	 *
	 * @since 1.5.0
	 * @access private
	 *
	 * @param array $field          An array of field data.
	 *
	 * @return string $formatted    Field label with value.
	 */
	private function field_formatted( $field ) {
		$formatted = '';
		if ( ! empty( $field['label'] ) ) {
			// translators: %s: Field Label.
			$formatted = sprintf( '%s: %s', $field['label'], $field['value'] );
		} elseif ( ! empty( $field['value'] ) ) {
			// translators: %s: Value.
			$formatted = sprintf( '%s', $field['value'] );
		}

		return $formatted;
	}

	/**
	 * Get Widget Setting data.
	 *
	 * @since 1.5.0
	 * @access public
	 * @param array  $elements Element array.
	 * @param string $form_id Element ID.
	 * @return Boolean True/False.
	 */
	public function find_element_recursive( $elements, $form_id ) {

		foreach ( $elements as $element ) {
			if ( $form_id === $element['id'] ) {
				return $element;
			}

			if ( ! empty( $element['elements'] ) ) {
				$element = $this->find_element_recursive( $element['elements'], $form_id );

				if ( $element ) {
					return $element;
				}
			}
		}

		return false;
	}
}