fix(openhab): fix syntax error in event value_template

Jinjava (the Jinja implementation openHAB uses) has an issue with
using `is defined` on a filter (see
HubSpot/jinjava#1226). Using parentheses
works around the issue, and is still compatible with Home Assistant's
reference Python implementation.

Author: ccutrer

lib/extension/homeassistant.ts

@@ -2102,7 +2102,7 @@ export default class HomeAssistant extends Extension {
             `    {% set ns.r = ns.r|rejectattr(0, 'eq', key)|list + [(key, value)] %}\n` +
             `  {% endfor %}\n` +
             `{% endfor %}\n` +
-            `{% if ns.r|selectattr(0, 'eq', 'actionPrefix')|first is defined %}\n` +
+            `{% if (ns.r|selectattr(0, 'eq', 'actionPrefix')|first) is defined %}\n` +
             `  {% set ns.r = ns.r|rejectattr(0, 'eq', 'action')|list + [('action', ns.r|selectattr(0, 'eq', 'actionPrefix')|map(attribute=1)|first + ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n` +
             `{% endif %}\n` +
             `{% set ns.r = ns.r + [('event_type', ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n` +

test/extensions/homeassistant.test.ts

@@ -410,7 +410,7 @@ describe('Extension: HomeAssistant', () => {
             unique_id: '0x0017880104e45520_action_zigbee2mqtt',
             // Needs to be updated whenever one of the ACTION_*_PATTERN constants changes.
             value_template:
-                "{% set patterns = [\n{\"pattern\": '^(?P<button>(?:button_)?[a-z0-9]+)_(?P<action>(?:press|hold)(?:_release)?)$', \"groups\": [\"button\", \"action\"]},\n{\"pattern\": '^(?P<action>recall|scene)_(?P<scene>[0-2][0-9]{0,2})$', \"groups\": [\"action\", \"scene\"]},\n{\"pattern\": '^(?P<actionPrefix>region_)(?P<region>[1-9]|10)_(?P<action>enter|leave|occupied|unoccupied)$', \"groups\": [\"actionPrefix\", \"region\", \"action\"]},\n{\"pattern\": '^(?P<action>dial_rotate)_(?P<direction>left|right)_(?P<speed>step|slow|fast)$', \"groups\": [\"action\", \"direction\", \"speed\"]},\n{\"pattern\": '^(?P<action>brightness_step)(?:_(?P<direction>up|down))?$', \"groups\": [\"action\", \"direction\"]}\n] %}\n{% set action_value = value_json.action|default('') %}\n{% set ns = namespace(r=[('action', action_value)]) %}\n{% for p in patterns %}\n  {% set m = action_value|regex_findall(p.pattern) %}\n  {% if m[0] is undefined %}{% continue %}{% endif %}\n  {% for key, value in zip(p.groups, m[0]) %}\n    {% set ns.r = ns.r|rejectattr(0, 'eq', key)|list + [(key, value)] %}\n  {% endfor %}\n{% endfor %}\n{% if ns.r|selectattr(0, 'eq', 'actionPrefix')|first is defined %}\n  {% set ns.r = ns.r|rejectattr(0, 'eq', 'action')|list + [('action', ns.r|selectattr(0, 'eq', 'actionPrefix')|map(attribute=1)|first + ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{% endif %}\n{% set ns.r = ns.r + [('event_type', ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{{dict.from_keys(ns.r|rejectattr(0, 'in', 'action, actionPrefix')|reject('eq', ('event_type', None))|reject('eq', ('event_type', '')))|to_json}}",
+                "{% set patterns = [\n{\"pattern\": '^(?P<button>(?:button_)?[a-z0-9]+)_(?P<action>(?:press|hold)(?:_release)?)$', \"groups\": [\"button\", \"action\"]},\n{\"pattern\": '^(?P<action>recall|scene)_(?P<scene>[0-2][0-9]{0,2})$', \"groups\": [\"action\", \"scene\"]},\n{\"pattern\": '^(?P<actionPrefix>region_)(?P<region>[1-9]|10)_(?P<action>enter|leave|occupied|unoccupied)$', \"groups\": [\"actionPrefix\", \"region\", \"action\"]},\n{\"pattern\": '^(?P<action>dial_rotate)_(?P<direction>left|right)_(?P<speed>step|slow|fast)$', \"groups\": [\"action\", \"direction\", \"speed\"]},\n{\"pattern\": '^(?P<action>brightness_step)(?:_(?P<direction>up|down))?$', \"groups\": [\"action\", \"direction\"]}\n] %}\n{% set action_value = value_json.action|default('') %}\n{% set ns = namespace(r=[('action', action_value)]) %}\n{% for p in patterns %}\n  {% set m = action_value|regex_findall(p.pattern) %}\n  {% if m[0] is undefined %}{% continue %}{% endif %}\n  {% for key, value in zip(p.groups, m[0]) %}\n    {% set ns.r = ns.r|rejectattr(0, 'eq', key)|list + [(key, value)] %}\n  {% endfor %}\n{% endfor %}\n{% if (ns.r|selectattr(0, 'eq', 'actionPrefix')|first) is defined %}\n  {% set ns.r = ns.r|rejectattr(0, 'eq', 'action')|list + [('action', ns.r|selectattr(0, 'eq', 'actionPrefix')|map(attribute=1)|first + ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{% endif %}\n{% set ns.r = ns.r + [('event_type', ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{{dict.from_keys(ns.r|rejectattr(0, 'in', 'action, actionPrefix')|reject('eq', ('event_type', None))|reject('eq', ('event_type', '')))|to_json}}",
         };
 
         expect(mockMQTT.publishAsync).toHaveBeenCalledWith('homeassistant/event/0x0017880104e45520/action/config', stringify(payload), {
@@ -1726,7 +1726,7 @@ describe('Extension: HomeAssistant', () => {
             unique_id: '0x0017880104e45520_action_zigbee2mqtt',
             // Needs to be updated whenever one of the ACTION_*_PATTERN constants changes.
             value_template:
-                "{% set patterns = [\n{\"pattern\": '^(?P<button>(?:button_)?[a-z0-9]+)_(?P<action>(?:press|hold)(?:_release)?)$', \"groups\": [\"button\", \"action\"]},\n{\"pattern\": '^(?P<action>recall|scene)_(?P<scene>[0-2][0-9]{0,2})$', \"groups\": [\"action\", \"scene\"]},\n{\"pattern\": '^(?P<actionPrefix>region_)(?P<region>[1-9]|10)_(?P<action>enter|leave|occupied|unoccupied)$', \"groups\": [\"actionPrefix\", \"region\", \"action\"]},\n{\"pattern\": '^(?P<action>dial_rotate)_(?P<direction>left|right)_(?P<speed>step|slow|fast)$', \"groups\": [\"action\", \"direction\", \"speed\"]},\n{\"pattern\": '^(?P<action>brightness_step)(?:_(?P<direction>up|down))?$', \"groups\": [\"action\", \"direction\"]}\n] %}\n{% set action_value = value_json.action|default('') %}\n{% set ns = namespace(r=[('action', action_value)]) %}\n{% for p in patterns %}\n  {% set m = action_value|regex_findall(p.pattern) %}\n  {% if m[0] is undefined %}{% continue %}{% endif %}\n  {% for key, value in zip(p.groups, m[0]) %}\n    {% set ns.r = ns.r|rejectattr(0, 'eq', key)|list + [(key, value)] %}\n  {% endfor %}\n{% endfor %}\n{% if ns.r|selectattr(0, 'eq', 'actionPrefix')|first is defined %}\n  {% set ns.r = ns.r|rejectattr(0, 'eq', 'action')|list + [('action', ns.r|selectattr(0, 'eq', 'actionPrefix')|map(attribute=1)|first + ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{% endif %}\n{% set ns.r = ns.r + [('event_type', ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{{dict.from_keys(ns.r|rejectattr(0, 'in', 'action, actionPrefix')|reject('eq', ('event_type', None))|reject('eq', ('event_type', '')))|to_json}}",
+                "{% set patterns = [\n{\"pattern\": '^(?P<button>(?:button_)?[a-z0-9]+)_(?P<action>(?:press|hold)(?:_release)?)$', \"groups\": [\"button\", \"action\"]},\n{\"pattern\": '^(?P<action>recall|scene)_(?P<scene>[0-2][0-9]{0,2})$', \"groups\": [\"action\", \"scene\"]},\n{\"pattern\": '^(?P<actionPrefix>region_)(?P<region>[1-9]|10)_(?P<action>enter|leave|occupied|unoccupied)$', \"groups\": [\"actionPrefix\", \"region\", \"action\"]},\n{\"pattern\": '^(?P<action>dial_rotate)_(?P<direction>left|right)_(?P<speed>step|slow|fast)$', \"groups\": [\"action\", \"direction\", \"speed\"]},\n{\"pattern\": '^(?P<action>brightness_step)(?:_(?P<direction>up|down))?$', \"groups\": [\"action\", \"direction\"]}\n] %}\n{% set action_value = value_json.action|default('') %}\n{% set ns = namespace(r=[('action', action_value)]) %}\n{% for p in patterns %}\n  {% set m = action_value|regex_findall(p.pattern) %}\n  {% if m[0] is undefined %}{% continue %}{% endif %}\n  {% for key, value in zip(p.groups, m[0]) %}\n    {% set ns.r = ns.r|rejectattr(0, 'eq', key)|list + [(key, value)] %}\n  {% endfor %}\n{% endfor %}\n{% if (ns.r|selectattr(0, 'eq', 'actionPrefix')|first) is defined %}\n  {% set ns.r = ns.r|rejectattr(0, 'eq', 'action')|list + [('action', ns.r|selectattr(0, 'eq', 'actionPrefix')|map(attribute=1)|first + ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{% endif %}\n{% set ns.r = ns.r + [('event_type', ns.r|selectattr(0, 'eq', 'action')|map(attribute=1)|first)] %}\n{{dict.from_keys(ns.r|rejectattr(0, 'in', 'action, actionPrefix')|reject('eq', ('event_type', None))|reject('eq', ('event_type', '')))|to_json}}",
         };
 
         expect(mockMQTT.publishAsync).toHaveBeenCalledWith('homeassistant/event/0x0017880104e45520/action/config', stringify(payload), {