1 files changed, 98 insertions, 26 deletions

diff --git a/app/Libraries/Helper.php b/app/Libraries/Helper.php
index be055b9..a900b87 100644
--- a/app/Libraries/Helper.php
+++ b/app/Libraries/Helper.php
@@ -27,6 +27,10 @@ class Helper {
 		    $feed_title = 'Popular Articles';
 		    $feed_description = 'The most popular articles. Keep exploring.';
 		    break;
+	    case( "mastodon"):
+		    $feed_title = 'Feed for Mastodon';
+		    $feed_description = 'New articles are published automatically to Mastodon.';
+		    break;
 	    default:
 		    $feed_title = 'Search for: ' . $title;
 		    $feed_description = 'All articles for "' . $title . '".';
@@ -54,41 +58,89 @@ class Helper {
 	       $feed->pubdate = $model[0]->created_at;
 	       $feed->lang = 'en';
 	       $feed->setShortening(false); // true or false
-	       $feed->setTextLimit(100); // maximum length of description text
+
+	       if ( "mastodon" == $title ) {
+		       $feed->setTextLimit(500); // maximum length of description text
+	       } else {
+		       $feed->setTextLimit(100); // maximum length of description text
+	       }
 
 	       foreach ($model as $post)
 	       {
 
 		       $desc = ($post->excerpt_html);
 
-		       if ( ! $post->getCategories()->get()->isEmpty()  ) {
-			       $categories = "<br>";
-			       foreach( $post->getCategories()->get() as $cat ) {
-				       $categories .= "<a href='". \URL::to('/topic/' . $cat->name) ."'>". $cat->name . "</a> | ";
+		       if ( "mastodon" == $title ) {
+
+			       $cat_len= 0;
+			       if ( ! $post->getCategories()->get()->isEmpty()  ) {
+				       $categories = "#MostDiscussed ";
+				       foreach( $post->getCategories()->get() as $cat ) {
+					       $categories .= "#". $cat->name . " ";
+				       }
+				       $cat_counter = $post->getCategories()->get()->count();
+				       $cat_len = mb_strlen($categories, "UTF-8");
 			       }
-			       $categories = rtrim($categories, " | ");
-			       $desc .= "<br>Topics:";
-			       $desc .= $categories;
-		       }
 
-		       $discussions = "<br>";
-		       foreach( $post->getDiscussions()->orderBy('comments', 'desc')->get() as $dis ) {
-			       $discussions .= "<a href='" . $dis->source_url . "'>" . $dis->title . "</a> ";
-			       $discussions .= $dis->upvotes . " Upvotes | " . $dis->comments . " Comments<br>";
+			       $discussions = "";
+			       if ( $post->getDiscussions()->orderBy('created_at', 'desc')->get()->count() > 1 ) {
+				       // multiple discussions on HN. show one link where you can find them all
+				       $discussions = env('APP_URL') . "/article/" . $post->id;
+			       } else {
+				       // only on disc link. ### TODO foreach not needed
+				       foreach( $post->getDiscussions()->orderBy('created_at', 'desc')->get() as $dis ) {
+					       $discussions = $dis->source_url;
+				       }
+			       }
+
+			       // max desc length is 500 - 23 (Link) - $cat_len - 2 (white spaces)
+			       $max_len = 500 - 23 - $cat_len - 2;
+
+			       $desc = Helper::first_sentence($desc, $max_len);
+
+			       $desc .= " " . $categories;# . $discussions;
+
+			       // set item's title, author, url, pubdate, description, content, enclosure (optional)*
+			       $feed->addItem([
+					'title' => $desc, // mastofeed.org seems to ignore the description field
+					'author' => env('APP_NAME'),
+					'url' => \URL::to($post->url),
+					'link' => \URL::to($post->url),
+					'pubdate' => $post->created_at,
+					'description' => $desc,
+					'content' => $desc
+			       ]);
+
+		       } else {
+			       if ( ! $post->getCategories()->get()->isEmpty()  ) {
+				       $categories = "<br>";
+				       foreach( $post->getCategories()->get() as $cat ) {
+					       $categories .= "<a href='". \URL::to('/topic/' . $cat->name) ."'>". $cat->name . "</a> | ";
+				       }
+				       $categories = rtrim($categories, " | ");
+				       $desc .= "<br>Topics:";
+				       $desc .= $categories;
+			       }
+
+			       $discussions = "<br>";
+			       foreach( $post->getDiscussions()->orderBy('comments', 'desc')->get() as $dis ) {
+				       $discussions .= "<a href='" . $dis->source_url . "'>" . $dis->title . "</a> ";
+				       $discussions .= $dis->upvotes . " Upvotes | " . $dis->comments . " Comments<br>";
+			       }
+			       $desc .= "<br><br>Discussions:";
+			       $desc .= $discussions;
+
+			   // set item's title, author, url, pubdate, description, content, enclosure (optional)*
+			       $feed->addItem([
+					'title' => $post->title,
+					'author' => env('APP_NAME'),
+					'url' => \URL::to($post->url),
+					'link' => \URL::to($post->url),
+					'pubdate' => $post->created_at,
+					'description' => $desc,
+					'content' => $desc
+			       ]);
 		       }
-		       $desc .= "<br><br>Discussions:";
-		       $desc .= $discussions;
-
-		   // set item's title, author, url, pubdate, description, content, enclosure (optional)*
-		       $feed->addItem([
-				'title' => $post->title,
-				'author' => env('APP_NAME'),
-				'url' => \URL::to($post->url),
-				'link' => \URL::to($post->url),
-				'pubdate' => $post->created_at,
-				'description' => $desc,
-				'content' => $desc
-		       ]);
 	       }
 
 	    }
@@ -98,4 +150,24 @@ class Helper {
 	    // optional: you can set custom cache key with 3rd param as string
 	    return $feed->render('atom', $cache, 'feed_' . $title);
 	}
+
+	public static function first_sentence($content, $max_len = NULL) {
+
+		$content = html_entity_decode(strip_tags($content));
+		$content = ltrim($content);
+		$pos = strpos($content, '.');
+
+		if($pos === false) {
+			if ( is_null($max_len) ) {
+				return $content;
+			} else {
+				return substr($content, 0, $max_len);
+			}
+		}
+		else {
+			return substr($content, 0, $pos+1);
+		}
+
+	}
 }
+