Move list to dict in utility-meter discovery (#63808)

* Move list to dict in utility-meter discovery

* Reuse name variable

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

homeassistant/components/utility_meter/__init__.py

@@ -7,11 +7,13 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
 from homeassistant.const import CONF_NAME
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.helpers.restore_state import RestoreEntity
+from homeassistant.helpers.typing import ConfigType
 
 from .const import (
     ATTR_TARIFF,
@@ -101,13 +103,13 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-async def async_setup(hass, config):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up an Utility Meter."""
     component = EntityComponent(_LOGGER, DOMAIN, hass)
     hass.data[DATA_UTILITY] = {}
     register_services = False
 
-    for meter, conf in config.get(DOMAIN).items():
+    for meter, conf in config[DOMAIN].items():
         _LOGGER.debug("Setup %s.%s", DOMAIN, meter)
 
         hass.data[DATA_UTILITY][meter] = conf
@@ -115,12 +117,13 @@ async def async_setup(hass, config):
 
         if not conf[CONF_TARIFFS]:
             # only one entity is required
+            name = conf.get(CONF_NAME, meter)
             hass.async_create_task(
                 discovery.async_load_platform(
                     hass,
                     SENSOR_DOMAIN,
                     DOMAIN,
-                    [{CONF_METER: meter, CONF_NAME: conf.get(CONF_NAME, meter)}],
+                    {name: {CONF_METER: meter, CONF_NAME: name}},
                     config,
                 )
             )
@@ -134,15 +137,15 @@ async def async_setup(hass, config):
             )
 
             # add one meter for each tariff
-            tariff_confs = []
+            tariff_confs = {}
             for tariff in conf[CONF_TARIFFS]:
-                tariff_confs.append(
+                name = f"{meter} {tariff}"
-                    {
+                tariff_confs[name] = {
                     CONF_METER: meter,
-                        CONF_NAME: f"{meter} {tariff}",
+                    CONF_NAME: name,
                     CONF_TARIFF: tariff,
                 }
-                )
+
             hass.async_create_task(
                 discovery.async_load_platform(
                     hass, SENSOR_DOMAIN, DOMAIN, tariff_confs, config

homeassistant/components/utility_meter/sensor.py

@@ -1,4 +1,6 @@
 """Utility meter from sensors providing raw data."""
+from __future__ import annotations
+
 from datetime import datetime
 from decimal import Decimal, DecimalException, InvalidOperation
 import logging
@@ -21,14 +23,16 @@ from homeassistant.const import (
     STATE_UNAVAILABLE,
     STATE_UNKNOWN,
 )
-from homeassistant.core import callback
+from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import entity_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import (
     async_track_point_in_time,
     async_track_state_change_event,
 )
 from homeassistant.helpers.restore_state import RestoreEntity
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 import homeassistant.util.dt as dt_util
 
 from .const import (
@@ -88,14 +92,19 @@ PAUSED = "paused"
 COLLECTING = "collecting"
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
+async def async_setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    async_add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the utility meter sensor."""
     if discovery_info is None:
         _LOGGER.error("This platform is only available through discovery")
         return
 
     meters = []
-    for conf in discovery_info:
+    for conf in discovery_info.values():
         meter = conf[CONF_METER]
         conf_meter_source = hass.data[DATA_UTILITY][meter][CONF_SOURCE_SENSOR]
         conf_meter_type = hass.data[DATA_UTILITY][meter].get(CONF_METER_TYPE)