Category watch state (#7109)

* feat: wip, category watch change

* feat: pass data to client

* feat: allow changing state

* fix: account page categories

* fix: show in unread if topic is followed or category is watched

* feat: add default watch state to acp

* feat: save user category watch state

* feat: update unread recent pages

* fix: remove dupe code

* fix: flip conditions

* fix: handle empty arrays

* fix: ignore/watch on others profile

* feat: upgrade script for category states

if there are any users ignoring categories set their state in new zset and delete cid:<cid>:ignorers

* fix: upgrade

* fix: tests

* fix: redis count

* fix: more tests

src/controllers/helpers.js

@@ -239,6 +239,20 @@ helpers.getCategories = function (set, uid, privilege, selectedCid, callback) {
 	], callback);
 };
 
+helpers.getCategoriesByStates = function (uid, selectedCid, states, callback) {
+	async.waterfall([
+		function (next) {
+			user.getCategoriesByStates(uid, states, next);
+		},
+		function (cids, next) {
+			privileges.categories.filterCids('read', cids, uid, next);
+		},
+		function (cids, next) {
+			getCategoryData(cids, uid, selectedCid, next);
+		},
+	], callback);
+};
+
 helpers.getWatchedCategories = function (uid, selectedCid, callback) {
 	async.waterfall([
 		function (next) {