Fix KeyError: 'last_triggered' for binary_sensor

[tzachi-dar]

Thanks for writing this plugin!

I was able to run the plugin well for a couple of days. Then communication was lost (that is I did not get notifications on alarms).
Restarting HA seems to solve the issue.

Looking at the log I can see the following exception.
Is this a known thing? Anything I can do to help debugging the issue.

^[[33m2024-02-10 17:25:59.939 WARNING (SyncWorker_3) [homeassistant.loader] We found a custom integration sonoff which has not been tested by Home Assistant. This component might cause stability problems, be sure to disable it if you experience issues with Home Assistant^[[0m
^[[33m2024-02-10 17:25:59.941 WARNING (SyncWorker_3) [homeassistant.loader] We found a custom integration hacs which has not been tested by Home Assistant. This component might cause stability problems, be sure to disable it if you experience issues with Home Assistant^[[0m
^[[31m2024-02-10 17:26:19.067 ERROR (MainThread) [homeassistant.components.binary_sensor] Error adding entities for domain binary_sensor with platform sonoff
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 507, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 752, in _async_add_entity
    await entity.add_to_platform_finish()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1281, in add_to_platform_finish
    await self.async_added_to_hass()
  File "/config/custom_components/sonoff/binary_sensor.py", line 118, in async_added_to_hass
    ts = restore.attributes[ATTR_LAST_TRIGGERED]
         ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
KeyError: 'last_triggered'^[[0m
^[[31m2024-02-10 17:26:19.087 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 507, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 752, in _async_add_entity
    await entity.add_to_platform_finish()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1281, in add_to_platform_finish
    await self.async_added_to_hass()
  File "/config/custom_components/sonoff/binary_sensor.py", line 118, in async_added_to_hass
    ts = restore.attributes[ATTR_LAST_TRIGGERED]
         ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
KeyError: 'last_triggered'^[[0m
^[[33m2024-02-10 17:26:23.361 WARNING (MainThread) [zigpy.application] Zigbee channel 15 utilization is 87.06%!^[[0m
^[[33m2024-02-10 17:26:23.361 WARNING (MainThread) [zigpy.application] If you are having problems joining new devices, are missing sensor updates, or have issues keeping devices joined, ensure your coordinator is away from interference sources such as USB 3.0 devices, SSDs, WiFi routers, etc.^[[0m
^[[33m2024-02-10 20:45:05.144 WARNING (Thread-7) [pychromecast.socket_client] [yes(192.168.4.105):8009] Heartbeat timeout, resetting connection^[[0m
^[[3

{
  "home_assistant": {
    "installation_type": "Home Assistant Container",
    "version": "2024.1.6",
    "dev": false,
    "hassio": false,
    "virtualenv": false,
    "python_version": "3.11.6",
    "docker": true,
    "arch": "armv7l",
    "timezone": "Asia/Jerusalem",
    "os_name": "Linux",
    "os_version": "5.15.76-v7l+",
    "run_as_root": true
  },
  "custom_components": {
    "sonoff": {
      "version": "3.5.4",
      "requirements": [
        "pycryptodome>=3.6.6"
      ]
    },
    "hacs": {
      "version": "1.34.0",
      "requirements": [
        "aiogithubapi>=22.10.1"
      ]
    }
  },
  "integration_manifest": {
    "domain": "sonoff",
    "name": "Sonoff",
    "codeowners": [
      "@AlexxIT"
    ],
    "config_flow": true,
    "dependencies": [
      "http",
      "zeroconf"
    ],
    "documentation": "https://github.com/AlexxIT/SonoffLAN",
    "iot_class": "local_push",
    "issue_tracker": "/api/sonoff/26f46737-4853-4b6d-82a5-bd841a3de5c9",
    "requirements": [
      "pycryptodome>=3.6.6"
    ],
    "version": "3.5.4",
    "is_built_in": false
  },
  "data": {
    "version": "a4a8c5f",
    "cloud_auth": true,
    "config": {
      "username": "***",
      "password": "***",
      "reload": "always"
    },
    "options": {
      "mode": "auto",
      "debug": true
    },
    "errors": [],
    "device": {
      "uiid": 28,
      "params": {
        "bindInfos": "***",
        "version": 8,
        "only_device": {
          "ota": "success"
        },
        "sledOnline": "on",
        "ssid": "***",
        "bssid": "***",
        "init": 1,
        "fwVersion": "3.5.2",
        "rssi": -71,
        "staMac": "***",
        "setState": "arm",
        "rfList": [
          {
            "rfChl": 1,
            "rfVal": "53320252083EB51005"
          },
          {
            "rfChl": 3,
            "rfVal": "563002CC088A12C904"
          },
          {
            "rfChl": 4,
            "rfVal": "549602A0080E975C05"
          },
          {
            "rfChl": 5,
            "rfVal": "52DE028A07EA9DC805"
          }
        ],
        "cmd": "trigger",
        "rfTrig1": "2024-01-31T00:16:13.000Z",
        "timers": "***",
        "rfChl": 4,
        "rfTrig5": "2024-02-09T11:57:50.000Z",
        "rfTrig3": "2024-02-09T14:50:08.000Z",
        "rfTrig4": "2024-02-09T14:01:39.000Z"
      },
      "model": "RFBridge433",
      "online": true,
      "local": true,
      "localtype": "rf",
      "host": "192.168.4.145:8081",
      "deviceid": "1001eb95d6"
    }
  }
}

[AlexxIT]

https://github.com/AlexxIT/SonoffLAN/releases/tag/v3.6.0