Routes::diagnostic_data( array $data )

	public function diagnostic_data( $data ) {
		$active_channels = $this->get_active_channel_ids();

		$channel_data = array_filter( array_map( function ( $channel_id ) {
			$key = 'channel-' . $channel_id;
			try {
				$channel = $this->channels->getChannel( $channel_id )->getData();
				$site    = $this->sites->getChannelSite( $channel_id )->getData();
				$routes  = $this->sites->indexSiteRoutes( $site->getId() )->getData();
			} catch ( ApiException $e ) {
				return null;
			}
			$label = $channel->getName();

			$data = [
				'label' => sprintf( __( 'Channel: %s', 'bigcommerce' ), $label ),
				'key'   => $key,
				'value' => [
					[
						'label' => __( 'Site URL', 'bigcommerce' ),
						'key'   => $key . '-site-url',
						'value' => $site->getUrl(),
					],
				],
			];

			$route_data = array_map( function ( Route $route ) {
				$label    = $route->getType();
				$matching = $route->getMatching();
				if ( $matching ) {
					$label .= ':' . $matching;
				}

				return [
					'label' => sprintf( __( 'Route: %s', 'bigcommerce' ), $label ),
					'key'   => 'route-' . $route->getId(),
					'value' => $route->getRoute(),
				];
			}, $routes );

			$data['value'] = array_merge( $data['value'], $route_data );

			return $data;
		}, $active_channels ) );

		return array_merge( $data, $channel_data );
	}