From 6d96091c3fe639998e50c8adfb052ba3d40b0d73 Mon Sep 17 00:00:00 2001
From: Pierre <pierre@hubert.fr>
Date: Tue, 20 Feb 2018 14:40:42 +0100
Subject: [PATCH] Added a method to delete notifications.

---
 RestControllers/notificationsController.php | 72 +++++++++++++++++++++
 classes/components/notifications.php        | 24 +++++++
 2 files changed, 96 insertions(+)

diff --git a/RestControllers/notificationsController.php b/RestControllers/notificationsController.php
index cf438ff..cf2f935 100644
--- a/RestControllers/notificationsController.php
+++ b/RestControllers/notificationsController.php
@@ -50,6 +50,78 @@ class notificationsController {
 
 	}
 
+	/**
+	 * Mark a notification as seen
+	 * 
+	 * @url POST notifications/mark_seen
+	 */
+	public function mark_seen(){
+
+		user_login_required();
+
+		//Get notification ID
+		$notifID = $this->getPostNotifID("notifID");
+
+		//Check the kind of deletion to do
+		$delete_similar = false;
+		if(isset($_POST['delete_similar']))
+			$delete_similar = ($_POST['delete_similar'] === "true");
+
+		//Get informations about the notification
+		$infos_notif = components()->notifications->get_single($notifID);
+
+		//Check for error
+		if(!$infos_notif->has_id())
+			Rest_fatal_error(500, "An error occured while trying to process the notification !");
+		
+		//Perform the required kind of deletion required
+		$notification = new Notification();
+
+		if(!$delete_similar){
+			$notification->set_id($notifID);
+		}
+
+		else {
+			$notification->set_on_elem_type($infos_notif->get_on_elem_type());
+			$notification->set_on_elem_id($infos_notif->get_on_elem_id());
+			$notification->set_dest_user_id($infos_notif->get_dest_user_id());
+		}
+
+		//Delete the notification
+		if(!components()->notifications->delete($notification))
+			Rest_fatal_error(500, "Could not delete the notification !");
+		
+		//Success
+		return array("success" => "The notification was deleted.");
+
+	}
+
+
+	/**
+	 * Get a valid notification ID in a POST request
+	 * 
+	 * @param string $name The name of the post field containing the notification ID
+	 * @return int The ID of the notification
+	 */
+	private function getPostNotifID(string $name) : int {
+
+		user_login_required();
+
+		//Check the POST request
+		if(!isset($_POST[$name]))
+			Rest_fatal_error(400, "Please specify the ID of the notification in '".$name."' !");
+		
+		$notifID = (int) $_POST[$name];
+
+		//Check if the notification exists and if the user is allowed to use it
+		$notif = new Notification();
+		$notif->set_dest_user_id(userID);
+		$notif->set_id($notifID);
+		if(!components()->notifications->similar_exists($notif))
+			Rest_fatal_error(404, "The specified notification was not found !");
+
+		return $notifID;
+	}
 
 	/**
 	 * Turn a notification entry into a standard API notification array
diff --git a/classes/components/notifications.php b/classes/components/notifications.php
index 325dd50..8998256 100644
--- a/classes/components/notifications.php
+++ b/classes/components/notifications.php
@@ -54,6 +54,30 @@ class notificationComponent {
 		return $list;
 	}
 
+	/**
+	 * Get the informations about a single notification
+	 * 
+	 * @param int $notifID The target notification ID
+	 * @return Notification The target notification
+	 */
+	public function get_single(int $notifID) : Notification {
+
+		//Perform database request
+		$conditions = "WHERE id = ?";
+		$values = array($notifID);
+
+		//Perform the request
+		$result = CS::get()->db->select(self::NOTIFICATIONS_TABLE, $conditions, $values);
+
+		//Check for error
+		if(count($result) == 0)
+			return new Notification(); //Return empty notification
+		
+		//Parse and return notification
+		return $this->dbToNotification($result[0]);
+
+	}
+
 	/**
 	 * Push a new notification
 	 *