minor improvements with hashtag handling

1 files changed, 29 insertions, 2 deletions

diff --git a/app/Libraries/Helper.php b/app/Libraries/Helper.php
index 311c466..026abef 100644
--- a/app/Libraries/Helper.php
+++ b/app/Libraries/Helper.php
@@ -73,11 +73,38 @@ class Helper {
 		       if ( "mastodon" == $title ) {
 
 			       $cat_len= 0;
+
 			       if ( ! $post->getCategories()->get()->isEmpty()  ) {
-				       $categories = "#MostDiscussed ";
+
+				       $categories_ar = array("#MostDiscussed");
+
 				       foreach( $post->getCategories()->get() as $cat ) {
-					       $categories .= "#". $cat->name . " ";
+
+					       // uppercase for every word in a possible multi worded hashtag
+					       $tmp_cat = ucwords($cat->name);
+
+					       // strip everything after / for brevity
+					       if ( false !== strpos($tmp_cat, "/") )
+						       $tmp_cat = substr($tmp_cat, 0, strpos($tmp_cat, "/"));
+
+					       // replace any non-alphanumeric character except underscore, because
+					       // it's not allowed to be used in a hashtag
+					       $tmp_cat = preg_replace("/[^A-Za-z0-9_]/", '', $tmp_cat);
+
+					       // trim just in case
+					       $tmp_cat = trim($tmp_cat);
+
+					       // if it's not empty, add it to the hashtag array
+					       if ( "" != $tmp_cat )
+						       $categories_ar[] = "#". $tmp_cat;
 				       }
+
+				       // remove possible duplicates (because stripping after "/")
+				       $categories_ar = array_unique($categories_ar);
+
+				       // join to one string
+				       $categories = implode(" ", $categories_ar);
+
 				       $cat_counter = $post->getCategories()->get()->count();
 				       $cat_len = mb_strlen($categories, "UTF-8");
 			       }