From 7ab3682df847692db20db00039eb66c7abc30fb7 Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre.git@communiquons.org>
Date: Tue, 24 Mar 2020 08:31:29 +0100
Subject: [PATCH] First public notification

---
 src/helpers/NotificationsHelper.ts | 49 ++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/src/helpers/NotificationsHelper.ts b/src/helpers/NotificationsHelper.ts
index 0c2004f..e831a95 100644
--- a/src/helpers/NotificationsHelper.ts
+++ b/src/helpers/NotificationsHelper.ts
@@ -3,6 +3,7 @@ import { Notif, NotifElemType, NotifEventVisibility } from "../entities/Notifica
 import { time } from "../utils/DateUtils";
 import { PostsHelper } from "./PostsHelper";
 import { PostPageKind, PostVisibilityLevel } from "../entities/Post";
+import { FriendsHelper } from "./FriendsHelper";
 
 /**
  * Notifications helper
@@ -47,6 +48,7 @@ export class NotificationsHelper {
 
 
 			// Check the scope of the notification
+			// Private post (on user pages)
 			if(post.visibilityLevel == PostVisibilityLevel.VISIBILITY_USER) {
 				
 				// Check if the user does not own the post
@@ -64,10 +66,57 @@ export class NotificationsHelper {
 				await this.PushPrivate(n)
 			}
 
+			// Posts on users page
+			else if(n.fromContainerType == NotifElemType.USER_PAGE) {
+				
+				// Process friends list of the user creating the notification
+				const friendsList = await FriendsHelper.GetList(n.fromUserID);
+				const targetUsers = [];
+
+				for(const friend of friendsList) {
+					if(friend.friendID != n.fromContainerID && 
+						post.userPageID != n.fromUserID && // Skip friendship check if user 
+															// creating the notification 
+															// & target page are the same
+						!await FriendsHelper.AreFriend(friend.friendID, post.userPageID))
+						continue;
+					
+					// Check if the user is following his friend
+					if(!await FriendsHelper.IsFollowing(friend.friendID, n.fromUserID))
+						continue;
+					
+					targetUsers.push(friend.friendID)
+				}
+
+				await this.PushPublic(n, targetUsers);
+
+			}
+
 			// TODO : continue
 		}
 	}
 
+	/**
+	 * Push a notification to multiple users
+	 * 
+	 * @param n The notification to push
+	 * @param users The list of target users
+	 */
+	private static async PushPublic(n: Notif, users: Array<number>) {
+		n.eventVisibility = NotifEventVisibility.EVENT_PUBLIC
+
+		for(const userID of users) {
+
+			n.destUserID = userID;
+
+			if(await this.SimilarExists(n))
+				continue
+			
+			await this.Create(n);
+
+		}
+	}
+
 	/**
 	 * Push a private notification
 	 *