From b6466c68e4724b3bc5e7fb9aa07858745f79b349 Mon Sep 17 00:00:00 2001
From: Pierre <pierre@hubert.fr>
Date: Sat, 3 Feb 2018 15:40:55 +0100
Subject: [PATCH] Get the list of latest posts of a user

---
 RestControllers/postsController.php | 55 +++++++++++++++++++----
 classes/components/posts.php        | 68 +++++++++++++++++++++++++++++
 2 files changed, 114 insertions(+), 9 deletions(-)

diff --git a/RestControllers/postsController.php b/RestControllers/postsController.php
index 58134e8..119ae3a 100644
--- a/RestControllers/postsController.php
+++ b/RestControllers/postsController.php
@@ -52,17 +52,35 @@ class postsController {
 		//Get the post of the user
 		$posts = CS::get()->components->posts->getUserPosts(userID, $userID, $startFrom);
 
-		//Process the list of posts
-		foreach($posts as $num => $infos){
-
-			//Parse post informations
-			$posts[$num] = $this->parsePostForAPI($infos);
-
-		}
-
-		return $posts;
+		//Return parsed list of posts
+		return $this->parsePostsList($posts);
 	}
 
+	/**
+	 * Get the latest posts for the user
+	 * 
+	 * @url POST /posts/get_latest
+	 */
+	public function get_latest_posts(){
+
+		user_login_required();
+
+		//Check if there is a startpoint for the posts
+		if(isset($_POST['startFrom'])){
+			$startFrom = toInt($_POST['startFrom']);
+		}
+		else
+			$startFrom = 0; //No start point
+
+		//Get the post of the user
+		$posts = CS::get()->components->posts->get_latest(userID, $startFrom, 10);
+
+		//Return parsed list of posts
+		return $this->parsePostsList($posts);
+
+	}
+
+
 	/**
 	 * Get informations about a single post
 	 * 
@@ -457,6 +475,25 @@ class postsController {
 		return $postID;
 	}
 
+	/**
+	 * Process a list of post for the API
+	 * 
+	 * @param array $list The list of posts to process
+	 * @return array The parsed list of posts for API
+	 */
+	private function parsePostsList(array $list) : array {
+
+		//Process the list of posts
+		foreach($list as $num => $infos){
+
+			//Parse post informations
+			$list[$num] = $this->parsePostForAPI($infos);
+
+		}
+
+		return $list;
+	}
+
 	/**
 	 * Parse a post to make it ready to be displayed on the API
 	 * 
diff --git a/classes/components/posts.php b/classes/components/posts.php
index c0b8fa9..a2a76c7 100644
--- a/classes/components/posts.php
+++ b/classes/components/posts.php
@@ -162,6 +162,74 @@ class Posts {
 
 	}
 
+	/**
+	 * Get the list of latest posts for a user
+	 * 
+	 * @param int $userID The ID of the user requesting its list of posts
+	 * @param int $startPoint The startpoint of the research (default: 0 = none)
+	 * @param int $limit The limit of the research (default: 10)
+	 * @return array The list of newest posts for the user
+	 */
+	public function get_latest(int $userID, int $startPoint = 0, int $limit = 10) : array {
+
+		//Check the value of limit (security)
+		if($limit < 1){
+			throw new Exception("The limit of the query must absolutly be positive !");
+		}
+
+		//Arbitrary visibility level
+		$visibilityLevel = self::VISIBILITY_FRIENDS;
+
+		//Get the list of friends of the user
+		$friendsList = components()->friends->getList($userID);
+
+
+		//Prepare the request on the database
+		//Add the visibility level conditions
+		$conditions = "WHERE niveau_visibilite <= ? AND (ID_personne = ?";
+		$dataConds = array($visibilityLevel, $userID);
+
+		//Process the list of friends of the user
+		foreach($friendsList as $friend){
+			$friendID = $friend->getFriendID();
+			$conditions .= " OR ID_personne = ?";
+			$dataConds[] = $friendID;
+		}
+
+		//Close user list conditions
+		$conditions .= ")";
+		
+		//Add startpoint condition if required (and get older messages)
+		if($startPoint != 0){
+			$conditions .= " AND ID <= ? ";
+			$dataConds[] = $startPoint;
+		}
+
+		//Specify order and limit
+		$conditions.= " ORDER BY ID DESC LIMIT ".$limit;
+
+		//Perform the request
+		$list = CS::get()->db->select(
+			$this::TABLE_NAME,
+			$conditions,
+			$dataConds
+		);
+
+		//Parse the list of posts
+		$posts = array();
+		foreach($list as $row){
+			
+			//Check if the user allow the comments
+			$allow_comments = CS::get()->components->user->allowComments($row["ID_personne"]);
+
+			//Parse post informations
+			$posts[] = $this->parse_post($row, $allow_comments);
+		}
+
+		//Return the list of posts
+		return $posts;
+	}
+
 	/**
 	 * Check whether a post exists or not
 	 *