<?php namespace MapGuesser\Controller;

use MapGuesser\Database\Query\Select;
use MapGuesser\Http\Request;
use MapGuesser\Interfaces\Database\IResultSet;
use MapGuesser\Interfaces\Response\IContent;
use MapGuesser\Response\HtmlContent;
use MapGuesser\Response\JsonContent;
use MapGuesser\Util\Geo\Bounds;

class MapAdminController
{
    public function getMaps(): IContent {
        //TODO

        return new HtmlContent('admin/maps');
    }

    public function getMapEditor(array $parameters): IContent {
        $mapId = (int) $parameters['mapId'];

        $bounds = $this->getMapBounds($mapId);

        $places = $this->getPlaces($mapId);

        $data = ['mapId' => $mapId, 'bounds' => $bounds->toArray(), 'places' => &$places];
        return new HtmlContent('admin/map_editor', $data);
    }

    public function getPlace(array $parameters) {
        $placeId = (int) $parameters['placeId'];

        $select = new Select(\Container::$dbConnection, 'places');
        $select->columns(['id', 'lat', 'lng']);
        $select->whereId($placeId);

        $place = $select->execute()->fetch(IResultSet::FETCH_ASSOC);

        $request = new Request('https://maps.googleapis.com/maps/api/streetview/metadata', Request::HTTP_GET);
        $request->setQuery([
            'key' => $_ENV['GOOGLE_MAPS_SERVER_API_KEY'],
            'location' => $place['lat'] . ',' . $place['lng'],
            'source' => 'outdoor'
        ]);

        $response = $request->send();

        $panoData = json_decode($response->getBody(), true);

        if ($panoData['status'] !== 'OK') {
            $panoId = null;
        } else {
            $panoId = $panoData['pano_id'];
        }

        $data = ['panoId' => $panoId];
        return new JsonContent($data);
    }

    private function getMapBounds(int $mapId): Bounds
    {
        $select = new Select(\Container::$dbConnection, 'maps');
        $select->columns(['bound_south_lat', 'bound_west_lng', 'bound_north_lat', 'bound_east_lng']);
        $select->whereId($mapId);

        $map = $select->execute()->fetch(IResultSet::FETCH_ASSOC);

        $bounds = Bounds::createDirectly($map['bound_south_lat'], $map['bound_west_lng'], $map['bound_north_lat'], $map['bound_east_lng']);

        return $bounds;
    }

    private function &getPlaces(int $mapId): array
    {
        $select = new Select(\Container::$dbConnection, 'places');
        $select->columns(['id', 'lat', 'lng']);
        $select->where('map_id', '=', $mapId);
        $select->orderBy('lng');
        //$select->limit(100);

        $places = $select->execute()->fetchAll(IResultSet::FETCH_ASSOC);

        return $places;
    }
}