Get the number of unread conversations of the user

src/controllers/ConversationsController.ts

@@ -283,6 +283,17 @@ export class ConversationsController {
 		h.send(messages.map(e => this.ConversationMessageToAPI(e)));
 	}
 
+	/**
+	 * Get the number of unread conversations for the user
+	 * 
+	 * @param h Request handler
+	 */
+	public static async CountUnreadForUser(h: RequestHandler) {
+		h.send({
+			nb_unread: await ConversationsHelper.CountUnreadForUser(h.getUserId())
+		})
+	}
+
 	/**
 	 * Get and return safely a conversation ID specified in a $_POST Request
 	 * 

src/controllers/Routes.ts

@@ -67,6 +67,8 @@ export const Routes : Route[] = [
 
 	{path: "/conversations/get_older_messages", cb: (h) => ConversationsController.GetOlderMessages(h)},
 
+	{path: "/conversations/get_number_unread", cb: (h) => ConversationsController.CountUnreadForUser(h)}
+	
 
 	// Search controller
 	{path: "/search/user", cb: (h) => SearchController.SearchUser(h)},

src/helpers/ConversationsHelper.ts

@@ -393,6 +393,22 @@ export class ConversationsHelper {
 		return result.map(r => r.conv_id);
 	}
 
+	/**
+	 * Count the number of unread conversations of the user
+	 * 
+	 * @param userID Target user ID
+	 */
+	public static async CountUnreadForUser(userID: number) : Promise<number> {
+		return await DatabaseHelper.Count({
+			table: USERS_TABLE,
+			where: {
+				user_id: userID,
+				saw_last_message: 0,
+				following: 1
+			}
+		});
+	}
+
 	/**
 	 * Get the list of members of a conversation
 	 *