<?php

namespace App\Http\Business;

use App\Http\DBO\CameraTypesDbo;
use App\Http\DBO\HostsDbo;
use Luticate\Utils\LuBusiness;
use App\Http\DataAccess\CamerasDataAccess;
use App\Http\DBO\CamerasDbo;
use Luticate\Utils\LuRequest;

class CamerasBusiness extends LuBusiness {
    protected static function getDataAccess()
    {
        return new CamerasDataAccess();
    }

    protected static function checkCamera(CamerasDbo $camera, $camera_id = null)
    {
        $existingCamera = CamerasDataAccess::getByName($camera->getName());
        if (!is_null($existingCamera) && $camera_id != $existingCamera->getId()) {
            self::badInput("Camera name already exists");
        }
        if (is_null($camera->getName()) || strlen($camera->getName()) == 0) {
            self::badInput("Missing camera name");
        }
        HostsBusiness::getById($camera->getHostId());
        CameraTypesBusiness::getById($camera->getCameraTypeId());
        if (is_null($camera->getDescription())) {
            $camera->setDescription("");
        }
        if (is_null($camera->getData()) || strlen($camera->getData()) == 0) {
            $camera->setData("{}");
        }
        $json = json_decode($camera->getData());
        if (is_null($json)) {
            self::badInput("Camera data could not be converted to json");
        }
    }

    public static function add(CamerasDbo $camera)
    {
        self::checkCamera($camera);
        return CamerasDataAccess::addId($camera);
    }

    public static function edit(CamerasDbo $camera, $camera_id)
    {
        self::getById($camera_id);
        self::checkCamera($camera, $camera_id);
        $camera->setId($camera_id);
        return CamerasDataAccess::editById($camera_id, $camera);
    }

    public static function getImage($camera_id)
    {
        /**
         * @var $camera CamerasDbo
         * @var $host HostsDbo
         * @var $type CameraTypesDbo
         */
        $camera = self::getById($camera_id);
        $host = HostsBusiness::getById($camera->getHostId());
        $type = CameraTypesBusiness::getById($camera->getCameraTypeId());
        return LuRequest::proxy('POST', $host->getUrl() . "/cameras/image", [],
            ["camera" => $camera->__toString(), "type" => $type->__toString()], ["X-Token" => $host->getToken()]);
    }
}