From 3afd5b2fd1f217f12ecad465449524fe93cacf09 Mon Sep 17 00:00:00 2001
From: horus
Date: Sat, 11 Apr 2020 19:44:37 +0200
Subject: Adds RSS- and Atom-Feeds.

---
 app/Http/Controllers/FeedController.php | 67 ++++++++++++++++++++++++++++++
 app/Libraries/Helper.php                | 73 +++++++++++++++++++++++++++++++++
 2 files changed, 140 insertions(+)
 create mode 100644 app/Http/Controllers/FeedController.php

(limited to 'app')

diff --git a/app/Http/Controllers/FeedController.php b/app/Http/Controllers/FeedController.php
new file mode 100644
index 0000000..9fd73a5
--- /dev/null
+++ b/app/Http/Controllers/FeedController.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
+use App\Article;
+use App\Discussion;
+use App\Category;
+use App\Libraries\Helper;
+
+class FeedController extends Controller
+{
+
+    public function new()
+    {
+	// creating rss feed with our most recent 20 posts
+	$articles = Article::orderBy('created_at', 'desc')->take(20)->get();
+	return Helper::makeFeed($articles, "new");
+    }
+
+    public function popular()
+    {
+
+	$articles = new Article;
+	$articles = $articles->setTable('view_popular');
+	$articles = $articles->take(20)->get();
+	return Helper::makeFeed($articles, "popular");
+    }
+
+    public function search(Request $request) {
+	    $search_unsafe = $request->input("q");
+
+	    if ( "" == $search_unsafe ) {
+		    $search_unsafe = "";
+	    }
+
+	    $search_unsafe = explode(",", $request->input("q"));
+
+	    $articles = new Article;
+
+	    if ( "on" == $request->input("onlypopular") ) {
+	    	$articles = $articles->setTable('view_popular');
+	    }
+
+	    foreach($search_unsafe as $q) {
+		    $q = Helper::escapeLike($q);
+		    $q = "%".$q."%";
+		    $articles = $articles->where(function ($query) use ($q) {
+		    		$query->whereHas('getCategories', function ($query) use ($q){
+		    			$query->where('name', 'like', $q);
+	    			})
+		    		->orWhere('title', 'like', $q)
+				->orWhere('url', 'like', $q)
+				->orWhere('excerpt_html', 'like', $q);
+				});
+	    }
+	    $count = $articles->count();
+
+	    if ( "on" == $request->input("onlypopular") ) {
+	    	$articles = $articles->orderBy('impact', 'desc');
+	    }
+	    $articles = $articles->orderBy('created_at', 'desc');
+
+	    return Helper::makeFeed($articles->take(20)->get(), $request->input("q"));
+    }
+}
diff --git a/app/Libraries/Helper.php b/app/Libraries/Helper.php
index d85d216..69e7de6 100644
--- a/app/Libraries/Helper.php
+++ b/app/Libraries/Helper.php
@@ -15,4 +15,77 @@ class Helper {
 	public static function formatTimestamp($timestamp) {
 		return Carbon::createFromTimestamp($timestamp)->format("Y-m-d");
 	}
+
+	public static function makeFeed($model, $title, $cache = 60) {
+
+	    switch($title) {
+	    case("new"):
+		    $feed_title = 'Newest Articles';
+		    $feed_description = 'Newest interesting articles from Wikipedia. Keep exploring.';
+		    break;
+	    case( "popular"):
+		    $feed_title = 'Popular Articles';
+		    $feed_description = 'The most popular articles. Keep exploring.';
+		    break;
+	    default:
+		    $feed_title = 'Search for: ' . $title;
+		    $feed_description = 'All articles for "' . $title . '".';
+		    break;
+	    }
+	    // create new feed
+	    $feed = \App::make("feed");
+
+	    // multiple feeds are supported
+	    // if you are using caching you should set different cache keys for your feeds
+
+	    // cache the feed for $cache minutes (second parameter is optional)
+	    $feed->setCache($cache, 'feed_' . $title);
+
+	    // check if there is cached feed and build new only if is not
+	    if (!$feed->isCached())
+	    {
+
+	       // set your feed's title, description, link, pubdate and language
+	       $feed->title = $feed_title;
+	       $feed->description = $feed_description;
+	       #$feed->logo = 'http://yoursite.tld/logo.jpg';
+	       $feed->link = url('feed/' . $title);
+	       $feed->setDateFormat('datetime'); // 'datetime', 'timestamp' or 'carbon'
+	       $feed->pubdate = $model[0]->created_at;
+	       $feed->lang = 'en';
+	       $feed->setShortening(true); // true or false
+	       $feed->setTextLimit(100); // maximum length of description text
+
+	       foreach ($model as $post)
+	       {
+
+		       $desc = ($post->excerpt_html);
+
+		       $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)*
+		   $feed->add($post->title, env('APP_NAME'), \URL::to($post->url), $post->created_at, $desc, $desc);
+	       }
+
+	    }
+
+	    // first param is the feed format
+	    // optional: second param is cache duration (value of 0 turns off caching)
+	    // optional: you can set custom cache key with 3rd param as string
+	    return $feed->render('atom', $cache, 'feed_' . $title);
+	}
 }
-- 
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