[MM-8497] Ability to set Do Not Disturb for a specified period of time (#17680)

* Revert "Revert "[MM-8497] Ability to set Do Not Disturb for a specified period of time (#16067)" (#17657)"

This reverts commit ff383990f8.

* add debug log for recurring function

* add feature flag for dnd timed status

* refactoring changes

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/plugin_api.go

@@ -317,6 +317,14 @@ func (api *PluginAPI) UpdateUserStatus(userID, status string) (*model.Status, *m
 	return api.app.GetStatus(userID)
 }
 
+func (api *PluginAPI) SetUserStatusTimedDND(userID string, endTime int64) (*model.Status, *model.AppError) {
+	// read-after-write bug which will fail if there are replicas.
+	// it works for now because we have a cache in between.
+	// FIXME: make SetStatusDoNotDisturbTimed return updated status
+	api.app.SetStatusDoNotDisturbTimed(userID, endTime)
+	return api.app.GetStatus(userID)
+}
+
 func (api *PluginAPI) GetUsersInChannel(channelID, sortBy string, page, perPage int) ([]*model.User, *model.AppError) {
 	switch sortBy {
 	case model.CHANNEL_SORT_BY_USERNAME: