<?php

namespace App\AlbumSources;
use App\Photo;
use OpenCloud\OpenStack;
use Symfony\Component\HttpFoundation\File\File;

/**
 * Driver for managing files on the local filesystem.
 * @package App\AlbumSources
 */
class OpenStackSource extends AlbumSourceBase implements IAlbumSource
{
    /**
     * Deletes an entire album's media contents.
     * @return void
     */
    public function deleteAlbumContents()
    {
        // TODO: Implement deleteAlbumContents() method.
    }

    /**
     * Deletes a thumbnail file for a photo.
     * @param Photo $photo Photo to delete the thumbnail from.
     * @param string $thumbnail Thumbnail to delete (or null to delete the original.)
     * @return void
     */
    public function deleteThumbnail(Photo $photo, $thumbnail = null)
    {
        // TODO: Implement deleteThumbnail() method.
    }

    /**
     * Gets the name of this album source.
     * @return string
     */
    public function getName()
    {
        return 'global.album_sources.openstack';
    }

    /**
     * Gets the absolute path to the given photo file.
     * @param Photo $photo Photo to get the path to.
     * @param string $thumbnail Thumbnail to get the image to.
     * @return string
     */
    public function getPathToPhoto(Photo $photo, $thumbnail = null)
    {
        // TODO: Implement getPathToPhoto() method.
    }

    /**
     * Gets the absolute URL to the given photo file.
     * @param Photo $photo Photo to get the URL to.
     * @param string $thumbnail Thumbnail to get the image to.
     * @return string
     */
    public function getUrlToPhoto(Photo $photo, $thumbnail = null)
    {
        return sprintf(
            '%s/%s/%s/%s',
            'https://photos-dev-898b0644.cdn.memsites.com',
            $this->album->url_alias,
            is_null($thumbnail) ? $this->getOriginalsFolder() : $thumbnail,
            $photo->storage_file_name
        );
    }

    public function saveOriginal(Photo $photo, $tempFilename)
    {
        $this->saveThumbnail($photo, $tempFilename, $this->getOriginalsFolder());
    }

    /**
     * Saves a generated thumbnail to its permanent location.
     * @param Photo $photo Photo the thumbnail relates to.
     * @param string $tempFilename Filename containing the thumbnail.
     * @param string $thumbnail Name of the thumbnail.
     * @return mixed
     */
    public function saveThumbnail(Photo $photo, $tempFilename, $thumbnail)
    {
        $container = $this->getContainer();
        $container->uploadObject(
            sprintf('%s/%s/%s', $this->album->url_alias, $thumbnail, $photo->storage_file_name),
            fopen($tempFilename, 'r+')
        );
    }

    /**
     * Saves an uploaded file to the container and returns the filename.
     * @param File $uploadedFile The photo uploaded
     * @param string $overrideFilename Specific file name to use, or null to randomly generate one.
     * @return File
     */
    public function saveUploadedPhoto(File $uploadedFile, $overrideFilename = null)
    {
        // TODO: Implement saveUploadedPhoto() method.
    }

    private function getClient()
    {
        return new OpenStack($this->configuration->auth_url, [
            'username' => $this->configuration->username,
            'password' => decrypt($this->configuration->password),
            'tenantName' => $this->configuration->tenant_name,
        ]);
    }

    private function getContainer()
    {
        return $this->getStorageService()->getContainer($this->configuration->container_name);
    }

    private function getOriginalsFolder()
    {
        return '_originals';
    }

    private function getStorageService()
    {
        return $this->getClient()->objectStoreService(
            $this->configuration->service_name,
            $this->configuration->service_region,
            'publicURL'
        );
    }
}