Reworked 'get-event' to throw error on 'no event' or 'overwritten eve…

…nt' (cf. cf. uhppoted/uhppote-cli#7)

CHANGELOG.md

@@ -1,3 +1,11 @@
+### v0.7.2: Minor bug fixes
+
+1. Update NodeRED dependency to v2.1.4
+2. Updated associated NodeRED components
+3. Throws an 'no event' error if `get-event` retrieves an event that does not exist
+4. Throws an 'overwritten event' error if `get-event` retrieves an event that has been overwritten
+   (cf. https://github.com/uhppoted/uhppote-cli/issues/7)
+
 ### v0.7.1: Implements the task list management functions from the extended API
 
 1. Added nodes for managing a controller task list:

TODO.md

@@ -1,10 +1,6 @@
-## v0.7.1
+## v0.7.2
 
-- [x] Publish to NPM
-- [x] Update README
-- [x] `clear-task-list`
-- [x] `add-task`
-- [x] `refresh-task`
+- [x] Throw error on `get-event` for overwritten event
 
 ## TODO
 

nodes/get-event.js

@@ -18,7 +18,11 @@ module.exports = function (RED) {
       const index = msg.payload.index
 
       const emit = function (object) {
-        if (object.index !== 0) {
+        if (object.event.index === 0 && object.event.type.code === 0xff) {
+          common.error(node, new Error(`event for ${deviceId}/${index} has been overwritten`))
+        } else if (object.event.index === 0) {
+          common.error(node, new Error(`no event for ${deviceId}/${index}`))
+        } else {
           common.emit(node, t, object)
         }
       }