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<?php |
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namespace WebDevEtc\BlogEtc\Services; |
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use Auth; |
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use Carbon\Carbon; |
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use Illuminate\Database\Eloquent\Collection; |
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use Illuminate\Http\Response; |
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use Laravelium\Feed\Feed; |
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use WebDevEtc\BlogEtc\Models\Post; |
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/** |
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* Class BlogEtcFeedService. |
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*/ |
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class FeedService |
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{ |
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/** |
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* @var PostsService |
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*/ |
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private $postsService; |
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/** |
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* FeedService constructor. |
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*/ |
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public function __construct(PostsService $postsService) |
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{ |
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$this->postsService = $postsService; |
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} |
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/** |
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* Build the Feed object and populate it with blog posts. |
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*/ |
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public function getFeed(Feed $feed, string $feedType): Response |
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{ |
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// RSS feed is cached. Admin/writer users might see different content, so |
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// use a different cache for different users. |
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// This should not be a problem unless your site has many logged in users. |
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// (Use check(), as it is possible for user to be logged in without having an ID (depending on how the guard |
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// is set up...) |
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$userOrGuest = Auth::check() |
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? 'logged-in-'.Auth::id() |
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: 'guest'; |
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$key = 'blogetc-'.$feedType.$userOrGuest; |
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$feed->setCache( |
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config('blogetc.rssfeed.cache_in_minutes', 60), |
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$key |
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); |
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if (!$feed->isCached()) { |
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$this->makeFreshFeed($feed); |
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} |
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return $feed->render($feedType); |
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} |
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/** |
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* Create fresh feed by passing latest blog posts. |
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* |
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* @param $feed |
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*/ |
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protected function makeFreshFeed(Feed $feed): void |
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{ |
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$blogPosts = $this->postsService->rssItems(); |
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$this->setupFeed( |
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$feed, |
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$this->pubDate($blogPosts) |
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); |
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/** @var Post $blogPost */ |
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foreach ($blogPosts as $blogPost) { |
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$feed->add( |
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$blogPost->title, |
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$blogPost->authorString(), |
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$blogPost->url(), |
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$blogPost->posted_at, |
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$blogPost->short_description |
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); |
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} |
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} |
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/** |
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* Basic set up of the Feed object. |
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*/ |
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protected function setupFeed(Feed $feed, Carbon $pubDate): Feed |
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{ |
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$feed->title = config('blogetc.rssfeed.title'); |
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$feed->description = config('blogetc.rssfeed.description'); |
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$feed->link = route('blogetc.index'); |
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$feed->lang = config('blogetc.rssfeed.language'); |
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$feed->setShortening(config('blogetc.rssfeed.should_shorten_text')); |
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$feed->setTextLimit(config('blogetc.rssfeed.text_limit')); |
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$feed->setDateFormat('carbon'); |
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$feed->pubdate = $pubDate; |
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return $feed; |
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} |
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/** |
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* Return the first post posted_at date, or if none exist then return today. |
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*/ |
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protected function pubDate(Collection $blogPosts): Carbon |
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{ |
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return $blogPosts->first() |
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? $blogPosts->first()->posted_at |
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: Carbon::now(); |
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} |
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} |
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WebDevEtc /
BlogEtc
