Fix UnboundLocalError in check_tarif when generate_energy_meters is disabled

[njloof]

When the 'Generate energy meters' option is disabled in the integration configuration, the check_tarif() method crashes with:

UnboundLocalError: cannot access local variable 'tarif_config' where
it is not associated with a value

Root cause: the variable tarif_config (along with energy_used, plan_name, base_sensor, and tarif) is only assigned inside the 'if self.generate_energy_meters:' block, but the code that uses these variables (the for loop iterating tarif_config.items(), the threshold check, the high_times check, and the tarif select update) was placed outside that block at a lower indentation level.

This means every coordinator update cycle crashes when energy meters are disabled, flooding the logs with errors.

Fix: move all code that depends on variables defined within the 'if self.generate_energy_meters:' block to be inside that block. When the option is disabled, check_tarif() now simply returns without action.

Tested on Home Assistant 2026.8.2 (Green) with both generate_energy_meters enabled and disabled — no errors in either case.

[ic-dev21]

Can you share logging? I cannot reproduce it here on multiple hosts.

[njloof]

Sorry about that -- good callout.

Reproduced on Home Assistant 2026.8.2 (Home Assistant Green, HAOS 18.2)
Hilo integration version: dvd-dev/hilo main branch (commit 40339bc)
Configuration: generate_energy_meters = false, track_unknown_sources = true

The error fires every coordinator update cycle (~10 seconds), flooding the logs:

2026-08-20 00:47:13.907 ERROR (MainThread) [custom_components.hilo] Unexpected error fetching hilo data
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 435, in _async_refresh
    self.data = await self._async_update_data()
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 315, in _async_update_data
    return await self.update_method()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/hilo/__init__.py", line 955, in async_update
    self.check_tarif()
    ~~~~~~~~~~~~~~~~^^
  File "/config/custom_components/hilo/__init__.py", line 1059, in check_tarif
    for tarif_name, rate in tarif_config.items():
                            ^^^^^^^^^^^^
UnboundLocalError: cannot access local variable 'tarif_config' where it is not associated with a value

When generate_energy_meters is False but track_unknown_sources is True,
check_tarif() executes, skips the assignment block, then crashes on
the uninitialized variable.

Steps to reproduce:

1. Install Hilo integration from dvd-dev/hilo (main branch, commit 40339bc)
2. In integration options, disable "Generate energy meters"
3. Keep "Track unknown sources" enabled (default: true)
4. Restart Home Assistant
5. Observe repeated UnboundLocalError every ~10 seconds in logs

[ic-dev21]

Sorry about that -- good callout.

Reproduced on Home Assistant 2026.8.2 (Home Assistant Green, HAOS 18.2) Hilo integration version: dvd-dev/hilo main branch (commit 40339bc) Configuration: generate_energy_meters = false, track_unknown_sources = true

The error fires every coordinator update cycle (~10 seconds), flooding the logs:

2026-08-20 00:47:13.907 ERROR (MainThread) [custom_components.hilo] Unexpected error fetching hilo data
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 435, in _async_refresh
    self.data = await self._async_update_data()
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 315, in _async_update_data
    return await self.update_method()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/hilo/__init__.py", line 955, in async_update
    self.check_tarif()
    ~~~~~~~~~~~~~~~~^^
  File "/config/custom_components/hilo/__init__.py", line 1059, in check_tarif
    for tarif_name, rate in tarif_config.items():
                            ^^^^^^^^^^^^
UnboundLocalError: cannot access local variable 'tarif_config' where it is not associated with a value

When generate_energy_meters is False but track_unknown_sources is True, check_tarif() executes, skips the assignment block, then crashes on the uninitialized variable.

Steps to reproduce:

1. Install Hilo integration from dvd-dev/hilo (main branch, commit 40339bc)
2. In integration options, disable "Generate energy meters"
3. Keep "Track unknown sources" enabled (default: true)
4. Restart Home Assistant
5. Observe repeated UnboundLocalError every ~10 seconds in logs

Track unknown source is meant to be used with energy meters and is not defaulted to true, as it generates one as well. I am seriously thinking of removing that checkbox entirely as now HA tracks this natively (and has since.. 2025.9 I think?) unless you specifically need the power meter itself for something.

[njloof]

Nope, not using the unknown source data tracking anyway -- so if the simpler solution is just to kill that option, feel free to decline this patch