Using Google Visio API

GoogleVisionApi.php

<?php


namespace app\Components;

use Vision\Annotation\SafeSearchAnnotation;
use Vision\Request\Image\Base64Image;
use Vision\Vision;

/**
 * This is a wrapper class for image processing through google vision api.
 *
 * Class GoogleVisionApi
 * @package app\Components
 */
class GoogleVisionApi
{
    /**
     * @var \Vision\Vision|null
     */
    private $visionApiClient = null;

    /**
     * @var null | SafeSearchAnnotation;
     */
    private $analysisReport = null;

    /**
     * GoogleVisionApi constructor.
     */
    public function __construct()
    {
        ;
        try {
            $this->visionApiClient = new Vision(
                getenv('GOOGLE_API_KEY'),
                [
                    new \Vision\Feature(\Vision\Feature::SAFE_SEARCH_DETECTION, 100),
                ]
            );

        } catch (\Exception $exception) {
            \Yii::$app->logger->log->error('Failed to analysis image form google vision api', ['message' => $exception->getMessage()]);
        };
    }

    /**
     * Analysis image form google vision API.
     *
     * @param $imagePath
     * @return $this
     */
    public function analysisImage($imagePath)
    {
        $imagePath = base64_encode(file_get_contents($imagePath));
        $response = $this->visionApiClient->request(new Base64Image($imagePath));
        $this->analysisReport = $response->getSafeSearchAnnotation();
        return $this;
    }

    /**
     * Analysis google vision api response and checking given image is safe to use or not.
     *
     * @return bool
     */
    public function isSafe()
    {
        if ($this->analysisReport->getAdult() == 'POSSIBLE' ||
            $this->analysisReport->getMedical() == 'POSSIBLE' ||
            $this->analysisReport->getAdult() == 'POSSIBLE' ||
            $this->analysisReport->getRacy() == 'POSSIBLE' ||
            $this->analysisReport->getSpoof() == 'POSSIBLE') {
            return false;
        }

        return true;
    }
}