refactoring

.ruff.toml

@@ -1,6 +1,7 @@
 # The contents of this file is based on https://github.com/home-assistant/core/blob/dev/pyproject.toml
 
 target-version = "py313"
+line-length = 120
 
 [lint]
 select = [
@@ -19,8 +20,12 @@ ignore = [
 [lint.flake8-pytest-style]
 fixture-parentheses = false
 
+[lint.isort]
+force-single-line = false
+known-first-party = ["custom_components", "homeassistant"]
+
 [lint.pyupgrade]
 keep-runtime-typing = true
 
 [lint.mccabe]
-max-complexity = 25
+max-complexity = 25

custom_components/tibber_prices/api.py

@@ -11,6 +11,7 @@ from typing import Any
 
 import aiohttp
 import async_timeout
+
 from homeassistant.const import __version__ as ha_version
 
 from .const import VERSION

custom_components/tibber_prices/binary_sensor.py

@@ -5,6 +5,9 @@ from __future__ import annotations
 from datetime import UTC, datetime
 from typing import TYPE_CHECKING
 
+if TYPE_CHECKING:
+    from collections.abc import Callable
+
 from homeassistant.components.binary_sensor import (
     BinarySensorDeviceClass,
     BinarySensorEntity,
@@ -70,18 +73,42 @@ class TibberPricesBinarySensor(TibberPricesEntity, BinarySensorEntity):
         """Initialize the binary_sensor class."""
         super().__init__(coordinator)
         self.entity_description = entity_description
-        self._attr_unique_id = (
-            f"{coordinator.config_entry.entry_id}_{entity_description.key}"
-        )
+        self._attr_unique_id = f"{coordinator.config_entry.entry_id}_{entity_description.key}"
+        self._state_getter: Callable | None = self._get_state_getter()
+        self._attribute_getter: Callable | None = self._get_attribute_getter()
+
+    def _get_state_getter(self) -> Callable | None:
+        """Return the appropriate state getter method based on the sensor type."""
+        key = self.entity_description.key
+
+        if key == "peak_hour":
+            return lambda: self._get_price_threshold_state(threshold_percentage=0.8, high_is_active=True)
+        if key == "best_price_hour":
+            return lambda: self._get_price_threshold_state(threshold_percentage=0.2, high_is_active=False)
+        if key == "connection":
+            return lambda: True if self.coordinator.data else None
+
+        return None
+
+    def _get_attribute_getter(self) -> Callable | None:
+        """Return the appropriate attribute getter method based on the sensor type."""
+        key = self.entity_description.key
+
+        if key == "peak_hour":
+            return lambda: self._get_price_hours_attributes(attribute_name="peak_hours", reverse_sort=True)
+        if key == "best_price_hour":
+            return lambda: self._get_price_hours_attributes(attribute_name="best_price_hours", reverse_sort=False)
+
+        return None
 
     def _get_current_price_data(self) -> tuple[list[float], float] | None:
         """Get current price data if available."""
         if not (
             self.coordinator.data
             and (
-                today_prices := self.coordinator.data["data"]["viewer"]["homes"][0][
-                    "currentSubscription"
-                ]["priceInfo"].get("today", [])
+                today_prices := self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"][
+                    "priceInfo"
+                ].get("today", [])
             )
         ):
             return None
@@ -102,26 +129,59 @@ class TibberPricesBinarySensor(TibberPricesEntity, BinarySensorEntity):
         prices.sort()
         return prices, float(current_hour_data["total"])
 
+    def _get_price_threshold_state(self, *, threshold_percentage: float, high_is_active: bool) -> bool | None:
+        """
+        Determine if current price is above/below threshold.
+
+        Args:
+            threshold_percentage: The percentage point in the sorted list (0.0-1.0)
+            high_is_active: If True, value >= threshold is active, otherwise value <= threshold is active
+
+        """
+        price_data = self._get_current_price_data()
+        if not price_data:
+            return None
+
+        prices, current_price = price_data
+        threshold_index = int(len(prices) * threshold_percentage)
+
+        if high_is_active:
+            return current_price >= prices[threshold_index]
+
+        return current_price <= prices[threshold_index]
+
+    def _get_price_hours_attributes(self, *, attribute_name: str, reverse_sort: bool) -> dict | None:
+        """Get price hours attributes."""
+        if not self.coordinator.data:
+            return None
+
+        price_info = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
+
+        today_prices = price_info.get("today", [])
+        if not today_prices:
+            return None
+
+        prices = [
+            (
+                datetime.fromisoformat(price["startsAt"]).hour,
+                float(price["total"]),
+            )
+            for price in today_prices
+        ]
+
+        # Sort by price (high to low for peak, low to high for best)
+        sorted_hours = sorted(prices, key=lambda x: x[1], reverse=reverse_sort)[:5]
+
+        return {attribute_name: [{"hour": hour, "price": price} for hour, price in sorted_hours]}
+
     @property
     def is_on(self) -> bool | None:
         """Return true if the binary_sensor is on."""
         try:
-            price_data = self._get_current_price_data()
-            if not price_data:
+            if not self.coordinator.data or not self._state_getter:
                 return None
 
-            prices, current_price = price_data
-            match self.entity_description.key:
-                case "peak_hour":
-                    threshold_index = int(len(prices) * 0.8)
-                    return current_price >= prices[threshold_index]
-                case "best_price_hour":
-                    threshold_index = int(len(prices) * 0.2)
-                    return current_price <= prices[threshold_index]
-                case "connection":
-                    return True
-                case _:
-                    return None
+            return self._state_getter()
 
         except (KeyError, ValueError, TypeError) as ex:
             self.coordinator.logger.exception(
@@ -137,43 +197,10 @@ class TibberPricesBinarySensor(TibberPricesEntity, BinarySensorEntity):
     def extra_state_attributes(self) -> dict | None:
         """Return additional state attributes."""
         try:
-            if not self.coordinator.data:
+            if not self.coordinator.data or not self._attribute_getter:
                 return None
 
-            subscription = self.coordinator.data["data"]["viewer"]["homes"][0][
-                "currentSubscription"
-            ]
-            price_info = subscription["priceInfo"]
-            attributes = {}
-
-            if self.entity_description.key in ["peak_hour", "best_price_hour"]:
-                today_prices = price_info.get("today", [])
-                if today_prices:
-                    prices = [
-                        (
-                            datetime.fromisoformat(price["startsAt"]).hour,
-                            float(price["total"]),
-                        )
-                        for price in today_prices
-                    ]
-
-                    if self.entity_description.key == "peak_hour":
-                        # Get top 5 peak hours
-                        peak_hours = sorted(prices, key=lambda x: x[1], reverse=True)[
-                            :5
-                        ]
-                        attributes["peak_hours"] = [
-                            {"hour": hour, "price": price} for hour, price in peak_hours
-                        ]
-                    else:
-                        # Get top 5 best price hours
-                        best_hours = sorted(prices, key=lambda x: x[1])[:5]
-                        attributes["best_price_hours"] = [
-                            {"hour": hour, "price": price} for hour, price in best_hours
-                        ]
-                    return attributes
-            else:
-                return None
+            return self._attribute_getter()
 
         except (KeyError, ValueError, TypeError) as ex:
             self.coordinator.logger.exception(

custom_components/tibber_prices/config_flow.py

@@ -3,11 +3,12 @@
 from __future__ import annotations
 
 import voluptuous as vol
+from slugify import slugify
+
 from homeassistant import config_entries
 from homeassistant.const import CONF_ACCESS_TOKEN
 from homeassistant.helpers import selector
 from homeassistant.helpers.aiohttp_client import async_create_clientsession
-from slugify import slugify
 
 from .api import (
     TibberPricesApiClient,

custom_components/tibber_prices/coordinator.py

@@ -91,9 +91,7 @@ def _get_latest_timestamp_from_prices(
             for price in today_prices:
                 if starts_at := price.get("startsAt"):
                     timestamp = dt_util.parse_datetime(starts_at)
-                    if timestamp and (
-                        not latest_timestamp or timestamp > latest_timestamp
-                    ):
+                    if timestamp and (not latest_timestamp or timestamp > latest_timestamp):
                         latest_timestamp = timestamp
 
         # Check tomorrow's prices
@@ -101,9 +99,7 @@ def _get_latest_timestamp_from_prices(
             for price in tomorrow_prices:
                 if starts_at := price.get("startsAt"):
                     timestamp = dt_util.parse_datetime(starts_at)
-                    if timestamp and (
-                        not latest_timestamp or timestamp > latest_timestamp
-                    ):
+                    if timestamp and (not latest_timestamp or timestamp > latest_timestamp):
                         latest_timestamp = timestamp
 
     except (KeyError, IndexError, TypeError):
@@ -131,9 +127,7 @@ def _get_latest_timestamp_from_rating(
                 for entry in rating_entries:
                     if time := entry.get("time"):
                         timestamp = dt_util.parse_datetime(time)
-                        if timestamp and (
-                            not latest_timestamp or timestamp > latest_timestamp
-                        ):
+                        if timestamp and (not latest_timestamp or timestamp > latest_timestamp):
                             latest_timestamp = timestamp
     except (KeyError, IndexError, TypeError):
         return None
@@ -171,16 +165,12 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
 
         # Schedule updates at the start of every hour
         self._remove_update_listeners.append(
-            async_track_time_change(
-                hass, self._async_refresh_hourly, minute=0, second=0
-            )
+            async_track_time_change(hass, self._async_refresh_hourly, minute=0, second=0)
         )
 
         # Schedule data rotation at midnight
         self._remove_update_listeners.append(
-            async_track_time_change(
-                hass, self._async_handle_midnight_rotation, hour=0, minute=0, second=0
-            )
+            async_track_time_change(hass, self._async_handle_midnight_rotation, hour=0, minute=0, second=0)
         )
 
     async def async_shutdown(self) -> None:
@@ -189,18 +179,14 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         for listener in self._remove_update_listeners:
             listener()
 
-    async def _async_handle_midnight_rotation(
-        self, _now: datetime | None = None
-    ) -> None:
+    async def _async_handle_midnight_rotation(self, _now: datetime | None = None) -> None:
         """Handle data rotation at midnight."""
         if not self._cached_price_data:
             return
 
         try:
             LOGGER.debug("Starting midnight data rotation")
-            subscription = self._cached_price_data["data"]["viewer"]["homes"][0][
-                "currentSubscription"
-            ]
+            subscription = self._cached_price_data["data"]["viewer"]["homes"][0]["currentSubscription"]
             price_info = subscription["priceInfo"]
 
             # Move today's data to yesterday
@@ -262,20 +248,12 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         if stored:
             # Load cached data
             self._cached_price_data = cast("TibberPricesData", stored.get("price_data"))
-            self._cached_rating_data_hourly = cast(
-                "TibberPricesData", stored.get("rating_data_hourly")
-            )
-            self._cached_rating_data_daily = cast(
-                "TibberPricesData", stored.get("rating_data_daily")
-            )
-            self._cached_rating_data_monthly = cast(
-                "TibberPricesData", stored.get("rating_data_monthly")
-            )
+            self._cached_rating_data_hourly = cast("TibberPricesData", stored.get("rating_data_hourly"))
+            self._cached_rating_data_daily = cast("TibberPricesData", stored.get("rating_data_daily"))
+            self._cached_rating_data_monthly = cast("TibberPricesData", stored.get("rating_data_monthly"))
 
             # Recover timestamps
-            self._last_price_update = self._recover_timestamp(
-                self._cached_price_data, stored.get("last_price_update")
-            )
+            self._last_price_update = self._recover_timestamp(self._cached_price_data, stored.get("last_price_update"))
             self._last_rating_update_hourly = self._recover_timestamp(
                 self._cached_rating_data_hourly,
                 stored.get("last_rating_update_hourly"),
@@ -293,8 +271,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
             )
 
             LOGGER.debug(
-                "Loaded stored cache data - "
-                "Price update: %s, Rating hourly: %s, daily: %s, monthly: %s",
+                "Loaded stored cache data - Price update: %s, Rating hourly: %s, daily: %s, monthly: %s",
                 self._last_price_update,
                 self._last_rating_update_hourly,
                 self._last_rating_update_daily,
@@ -379,46 +356,15 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         else:
             return result
 
-    async def _handle_conditional_update(
-        self, current_time: datetime
-    ) -> TibberPricesData:
+    async def _handle_conditional_update(self, current_time: datetime) -> TibberPricesData:
         """Handle conditional update based on update conditions."""
-        should_update_price = self._should_update_price_data(current_time)
-        should_update_hourly = self._should_update_rating_type(
-            current_time,
-            self._cached_rating_data_hourly,
-            self._last_rating_update_hourly,
-            "hourly",
-        )
-        should_update_daily = self._should_update_rating_type(
-            current_time,
-            self._cached_rating_data_daily,
-            self._last_rating_update_daily,
-            "daily",
-        )
-        should_update_monthly = self._should_update_rating_type(
-            current_time,
-            self._cached_rating_data_monthly,
-            self._last_rating_update_monthly,
-            "monthly",
-        )
+        # Simplified conditional update checking
+        update_conditions = self._check_update_conditions(current_time)
 
-        if any(
-            [
-                should_update_price,
-                should_update_hourly,
-                should_update_daily,
-                should_update_monthly,
-            ]
-        ):
+        if any(update_conditions.values()):
             LOGGER.debug(
                 "Updating data based on conditions",
-                extra={
-                    "update_price": should_update_price,
-                    "update_hourly": should_update_hourly,
-                    "update_daily": should_update_daily,
-                    "update_monthly": should_update_monthly,
-                },
+                extra=update_conditions,
             )
             return await self._fetch_all_data()
 
@@ -429,6 +375,31 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         LOGGER.debug("No cached data available, fetching new data")
         return await self._fetch_all_data()
 
+    @callback
+    def _check_update_conditions(self, current_time: datetime) -> dict[str, bool]:
+        """Check all update conditions and return results as a dictionary."""
+        return {
+            "update_price": self._should_update_price_data(current_time),
+            "update_hourly": self._should_update_rating_type(
+                current_time,
+                self._cached_rating_data_hourly,
+                self._last_rating_update_hourly,
+                "hourly",
+            ),
+            "update_daily": self._should_update_rating_type(
+                current_time,
+                self._cached_rating_data_daily,
+                self._last_rating_update_daily,
+                "daily",
+            ),
+            "update_monthly": self._should_update_rating_type(
+                current_time,
+                self._cached_rating_data_monthly,
+                self._last_rating_update_monthly,
+                "monthly",
+            ),
+        }
+
     async def _fetch_all_data(self) -> TibberPricesData:
         """
         Fetch all data from the API without checking update conditions.
@@ -462,9 +433,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         except TibberPricesApiClientError as ex:
             LOGGER.error("Failed to fetch price data: %s", ex)
             if self._cached_price_data is not None:
-                LOGGER.info(
-                    "Using cached data as fallback after price data fetch failure"
-                )
+                LOGGER.info("Using cached data as fallback after price data fetch failure")
                 return self._merge_all_cached_data()
             raise
 
@@ -483,24 +452,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         # Update rating data cache only for types that were successfully fetched
         for rating_type, rating_data in new_data["rating_data"].items():
             if rating_data is not None:
-                if rating_type == "hourly":
-                    self._cached_rating_data_hourly = cast(
-                        "TibberPricesData", rating_data
-                    )
-                    self._last_rating_update_hourly = current_time
-                elif rating_type == "daily":
-                    self._cached_rating_data_daily = cast(
-                        "TibberPricesData", rating_data
-                    )
-                    self._last_rating_update_daily = current_time
-                else:  # monthly
-                    self._cached_rating_data_monthly = cast(
-                        "TibberPricesData", rating_data
-                    )
-                    self._last_rating_update_monthly = current_time
-                LOGGER.debug(
-                    "Updated %s rating data cache at %s", rating_type, current_time
-                )
+                self._update_rating_cache(rating_type, rating_data, current_time)
 
         # Store the updated cache
         await self._store_cache()
@@ -509,13 +461,25 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         # Return merged data
         return self._merge_all_cached_data()
 
+    @callback
+    def _update_rating_cache(self, rating_type: str, rating_data: TibberPricesData, current_time: datetime) -> None:
+        """Update the rating cache for a specific rating type."""
+        if rating_type == "hourly":
+            self._cached_rating_data_hourly = cast("TibberPricesData", rating_data)
+            self._last_rating_update_hourly = current_time
+        elif rating_type == "daily":
+            self._cached_rating_data_daily = cast("TibberPricesData", rating_data)
+            self._last_rating_update_daily = current_time
+        else:  # monthly
+            self._cached_rating_data_monthly = cast("TibberPricesData", rating_data)
+            self._last_rating_update_monthly = current_time
+        LOGGER.debug("Updated %s rating data cache at %s", rating_type, current_time)
+
     async def _store_cache(self) -> None:
         """Store cache data."""
         # Recover any missing timestamps from the data
         if self._cached_price_data and not self._last_price_update:
-            latest_timestamp = _get_latest_timestamp_from_prices(
-                self._cached_price_data
-            )
+            latest_timestamp = _get_latest_timestamp_from_prices(self._cached_price_data)
             if latest_timestamp:
                 self._last_price_update = latest_timestamp
                 LOGGER.debug(
@@ -537,9 +501,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
 
         for rating_type, (cached_data, last_update) in rating_types.items():
             if cached_data and not last_update:
-                latest_timestamp = self._get_latest_timestamp_from_rating_type(
-                    cached_data, rating_type
-                )
+                latest_timestamp = self._get_latest_timestamp_from_rating_type(cached_data, rating_type)
                 if latest_timestamp:
                     if rating_type == "hourly":
                         self._last_rating_update_hourly = latest_timestamp
@@ -558,9 +520,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
             "rating_data_hourly": self._cached_rating_data_hourly,
             "rating_data_daily": self._cached_rating_data_daily,
             "rating_data_monthly": self._cached_rating_data_monthly,
-            "last_price_update": self._last_price_update.isoformat()
-            if self._last_price_update
-            else None,
+            "last_price_update": self._last_price_update.isoformat() if self._last_price_update else None,
             "last_rating_update_hourly": self._last_rating_update_hourly.isoformat()
             if self._last_rating_update_hourly
             else None,
@@ -586,9 +546,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
             return True
 
         # Get the latest timestamp from our price data
-        latest_price_timestamp = _get_latest_timestamp_from_prices(
-            self._cached_price_data
-        )
+        latest_price_timestamp = _get_latest_timestamp_from_prices(self._cached_price_data)
         if not latest_price_timestamp:
             LOGGER.debug("No valid timestamp found in price data, update needed")
             return True
@@ -603,30 +561,22 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
 
         # Check if we're in the update window (13:00-15:00)
         current_hour = current_time.hour
-        in_update_window = (
-            PRICE_UPDATE_RANDOM_MIN_HOUR <= current_hour <= PRICE_UPDATE_RANDOM_MAX_HOUR
-        )
+        in_update_window = PRICE_UPDATE_RANDOM_MIN_HOUR <= current_hour <= PRICE_UPDATE_RANDOM_MAX_HOUR
 
         # Get tomorrow's date at midnight
-        tomorrow = (current_time + timedelta(days=1)).replace(
-            hour=0, minute=0, second=0, microsecond=0
-        )
+        tomorrow = (current_time + timedelta(days=1)).replace(hour=0, minute=0, second=0, microsecond=0)
 
         # If we're in the update window and don't have tomorrow's complete data
         if in_update_window and latest_price_timestamp < tomorrow:
             LOGGER.debug(
-                "In update window (%d:00) and latest price timestamp (%s) "
-                "is before tomorrow, update needed",
+                "In update window (%d:00) and latest price timestamp (%s) is before tomorrow, update needed",
                 current_hour,
                 latest_price_timestamp,
             )
             return True
 
         # If it's been more than 24 hours since our last update
-        if (
-            self._last_price_update
-            and current_time - self._last_price_update >= UPDATE_INTERVAL
-        ):
+        if self._last_price_update and current_time - self._last_price_update >= UPDATE_INTERVAL:
             LOGGER.debug(
                 "More than 24 hours since last price update (%s), update needed",
                 self._last_price_update,
@@ -651,19 +601,13 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         """Check if specific rating type should be updated."""
         # If no cached data, we definitely need an update
         if cached_data is None:
-            LOGGER.debug(
-                "No cached %s rating data available, update needed", rating_type
-            )
+            LOGGER.debug("No cached %s rating data available, update needed", rating_type)
             return True
 
         # Get the latest timestamp from our rating data
-        latest_timestamp = self._get_latest_timestamp_from_rating_type(
-            cached_data, rating_type
-        )
+        latest_timestamp = self._get_latest_timestamp_from_rating_type(cached_data, rating_type)
         if not latest_timestamp:
-            LOGGER.debug(
-                "No valid timestamp found in %s rating data, update needed", rating_type
-            )
+            LOGGER.debug("No valid timestamp found in %s rating data, update needed", rating_type)
             return True
 
         # If we have rating data but no last_update timestamp, set it
@@ -682,22 +626,16 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
             last_update = latest_timestamp
 
         current_hour = current_time.hour
-        in_update_window = (
-            PRICE_UPDATE_RANDOM_MIN_HOUR <= current_hour <= PRICE_UPDATE_RANDOM_MAX_HOUR
-        )
+        in_update_window = PRICE_UPDATE_RANDOM_MIN_HOUR <= current_hour <= PRICE_UPDATE_RANDOM_MAX_HOUR
         should_update = False
 
         if rating_type == "monthly":
-            current_month_start = current_time.replace(
-                day=1, hour=0, minute=0, second=0, microsecond=0
-            )
+            current_month_start = current_time.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
             should_update = latest_timestamp < current_month_start or (
                 last_update and current_time - last_update >= timedelta(days=1)
             )
         else:
-            tomorrow = (current_time + timedelta(days=1)).replace(
-                hour=0, minute=0, second=0, microsecond=0
-            )
+            tomorrow = (current_time + timedelta(days=1)).replace(hour=0, minute=0, second=0, microsecond=0)
             should_update = (
                 in_update_window and latest_timestamp < tomorrow
             ) or current_time - last_update >= UPDATE_INTERVAL
@@ -722,9 +660,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
     @callback
     def _is_price_update_window(self, current_hour: int) -> bool:
         """Check if current hour is within price update window."""
-        return (
-            PRICE_UPDATE_RANDOM_MIN_HOUR <= current_hour <= PRICE_UPDATE_RANDOM_MAX_HOUR
-        )
+        return PRICE_UPDATE_RANDOM_MIN_HOUR <= current_hour <= PRICE_UPDATE_RANDOM_MAX_HOUR
 
     async def _fetch_price_data(self) -> dict:
         """Fetch fresh price data from API."""
@@ -737,14 +673,10 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         try:
             # Try to access data in the transformed structure first
             try:
-                price_info = data["viewer"]["homes"][0]["currentSubscription"][
-                    "priceInfo"
-                ]
+                price_info = data["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
             except KeyError:
                 # If that fails, try the raw data structure
-                price_info = data["data"]["viewer"]["homes"][0]["currentSubscription"][
-                    "priceInfo"
-                ]
+                price_info = data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
 
             # Ensure we have all required fields
             extracted_price_info = {
@@ -771,15 +703,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
                     }
                 }
             }
-        return {
-            "data": {
-                "viewer": {
-                    "homes": [
-                        {"currentSubscription": {"priceInfo": extracted_price_info}}
-                    ]
-                }
-            }
-        }
+        return {"data": {"viewer": {"homes": [{"currentSubscription": {"priceInfo": extracted_price_info}}]}}}
 
     @callback
     def _get_latest_timestamp_from_rating_type(
@@ -790,9 +714,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
             return None
 
         try:
-            subscription = rating_data["data"]["viewer"]["homes"][0][
-                "currentSubscription"
-            ]
+            subscription = rating_data["data"]["viewer"]["homes"][0]["currentSubscription"]
             price_rating = subscription["priceRating"]
             result = None
 
@@ -823,15 +745,11 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
         except KeyError:
             try:
                 # If that fails, try the raw data structure
-                rating = data["data"]["viewer"]["homes"][0]["currentSubscription"][
-                    "priceRating"
-                ]
+                rating = data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceRating"]
             except KeyError as ex:
                 LOGGER.error("Failed to extract rating data: %s", ex)
                 raise TibberPricesApiClientError(
-                    TibberPricesApiClientError.EMPTY_DATA_ERROR.format(
-                        query_type=rating_type
-                    )
+                    TibberPricesApiClientError.EMPTY_DATA_ERROR.format(query_type=rating_type)
                 ) from ex
             else:
                 return {
@@ -841,9 +759,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
                                 {
                                     "currentSubscription": {
                                         "priceRating": {
-                                            "thresholdPercentages": rating[
-                                                "thresholdPercentages"
-                                            ],
+                                            "thresholdPercentages": rating["thresholdPercentages"],
                                             rating_type: rating[rating_type],
                                         }
                                     }
@@ -860,9 +776,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
                             {
                                 "currentSubscription": {
                                     "priceRating": {
-                                        "thresholdPercentages": rating[
-                                            "thresholdPercentages"
-                                        ],
+                                        "thresholdPercentages": rating["thresholdPercentages"],
                                         rating_type: rating[rating_type],
                                     }
                                 }
@@ -880,9 +794,7 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
 
         # Start with price info
         subscription = {
-            "priceInfo": self._cached_price_data["data"]["viewer"]["homes"][0][
-                "currentSubscription"
-            ]["priceInfo"],
+            "priceInfo": self._cached_price_data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"],
             "priceRating": {
                 "thresholdPercentages": None,
             },
@@ -897,15 +809,11 @@ class TibberPricesDataUpdateCoordinator(DataUpdateCoordinator[TibberPricesData])
 
         for rating_type, data in rating_data.items():
             if data and "data" in data:
-                rating = data["data"]["viewer"]["homes"][0]["currentSubscription"][
-                    "priceRating"
-                ]
+                rating = data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceRating"]
 
                 # Set thresholdPercentages from any available rating data
                 if not subscription["priceRating"]["thresholdPercentages"]:
-                    subscription["priceRating"]["thresholdPercentages"] = rating[
-                        "thresholdPercentages"
-                    ]
+                    subscription["priceRating"]["thresholdPercentages"] = rating["thresholdPercentages"]
 
                 # Add the specific rating type data
                 subscription["priceRating"][rating_type] = rating[rating_type]

custom_components/tibber_prices/sensor.py

@@ -3,7 +3,10 @@
 from __future__ import annotations
 
 from datetime import UTC, datetime
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any
+
+if TYPE_CHECKING:
+    from collections.abc import Callable
 
 from homeassistant.components.sensor import (
     SensorDeviceClass,
@@ -16,6 +19,8 @@ from homeassistant.util import dt as dt_util
 from .entity import TibberPricesEntity
 
 if TYPE_CHECKING:
+    from collections.abc import Callable
+
     from homeassistant.core import HomeAssistant
     from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -203,192 +208,164 @@ class TibberPricesSensor(TibberPricesEntity, SensorEntity):
         """Initialize the sensor class."""
         super().__init__(coordinator)
         self.entity_description = entity_description
-        self._attr_unique_id = (
-            f"{coordinator.config_entry.entry_id}_{entity_description.key}"
-        )
+        self._attr_unique_id = f"{coordinator.config_entry.entry_id}_{entity_description.key}"
         self._attr_has_entity_name = True
+        self._value_getter: Callable | None = self._get_value_getter()
+
+    def _get_value_getter(self) -> Callable | None:
+        """Return the appropriate value getter method based on the sensor type."""
+        key = self.entity_description.key
+
+        # Map sensor keys to their handler methods
+        handlers = {
+            # Price level
+            "price_level": self._get_price_level_value,
+            # Price sensors
+            "current_price": lambda: self._get_hourly_price_value(hour_offset=0, in_euro=False),
+            "current_price_eur": lambda: self._get_hourly_price_value(hour_offset=0, in_euro=True),
+            "next_hour_price": lambda: self._get_hourly_price_value(hour_offset=1, in_euro=False),
+            "next_hour_price_eur": lambda: self._get_hourly_price_value(hour_offset=1, in_euro=True),
+            # Statistics sensors
+            "lowest_price_today": lambda: self._get_statistics_value(stat_func=min, in_euro=False),
+            "lowest_price_today_eur": lambda: self._get_statistics_value(stat_func=min, in_euro=True),
+            "highest_price_today": lambda: self._get_statistics_value(stat_func=max, in_euro=False),
+            "highest_price_today_eur": lambda: self._get_statistics_value(stat_func=max, in_euro=True),
+            "average_price_today": lambda: self._get_statistics_value(
+                stat_func=lambda prices: sum(prices) / len(prices), in_euro=False
+            ),
+            "average_price_today_eur": lambda: self._get_statistics_value(
+                stat_func=lambda prices: sum(prices) / len(prices), in_euro=True
+            ),
+            # Rating sensors
+            "hourly_rating": lambda: self._get_rating_value(rating_type="hourly"),
+            "daily_rating": lambda: self._get_rating_value(rating_type="daily"),
+            "monthly_rating": lambda: self._get_rating_value(rating_type="monthly"),
+            # Diagnostic sensors
+            "data_timestamp": self._get_data_timestamp,
+            "tomorrow_data_available": self._get_tomorrow_data_status,
+        }
+
+        return handlers.get(key)
 
     def _get_current_hour_data(self) -> dict | None:
         """Get the price data for the current hour."""
         if not self.coordinator.data:
             return None
         now = datetime.now(tz=UTC).astimezone()
-        price_info = self.coordinator.data["data"]["viewer"]["homes"][0][
-            "currentSubscription"
-        ]["priceInfo"]
+        price_info = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
         for price_data in price_info.get("today", []):
             starts_at = datetime.fromisoformat(price_data["startsAt"])
             if starts_at.hour == now.hour:
                 return price_data
         return None
 
-    def _get_price_value(self, price: float) -> float:
-        """Convert price based on unit."""
-        return (
-            price * 100
-            if self.entity_description.native_unit_of_measurement == "ct/kWh"
-            else price
-        )
+    def _get_price_level_value(self) -> str | None:
+        """Get the current price level value."""
+        current_hour_data = self._get_current_hour_data()
+        return current_hour_data["level"] if current_hour_data else None
 
-    def _get_price_sensor_value(self) -> float | None:
-        """Handle price sensor values."""
+    def _get_price_value(self, price: float, *, in_euro: bool) -> float:
+        """Convert price based on unit."""
+        return price if in_euro else price * 100
+
+    def _get_hourly_price_value(self, *, hour_offset: int, in_euro: bool) -> float | None:
+        """Get price for current hour or with offset."""
         if not self.coordinator.data:
             return None
 
-        subscription = self.coordinator.data["data"]["viewer"]["homes"][0][
-            "currentSubscription"
-        ]
-        price_info = subscription["priceInfo"]
+        price_info = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
         now = datetime.now(tz=UTC).astimezone()
-        current_hour_data = self._get_current_hour_data()
+        target_hour = (now.hour + hour_offset) % 24
 
-        key = self.entity_description.key
-        if key in ["current_price", "current_price_eur"]:
-            if not current_hour_data:
-                return None
-            return (
-                self._get_price_value(float(current_hour_data["total"]))
-                if key == "current_price"
-                else float(current_hour_data["total"])
-            )
-
-        if key in ["next_hour_price", "next_hour_price_eur"]:
-            next_hour = (now.hour + 1) % 24
-            for price_data in price_info.get("today", []):
-                starts_at = datetime.fromisoformat(price_data["startsAt"])
-                if starts_at.hour == next_hour:
-                    return (
-                        self._get_price_value(float(price_data["total"]))
-                        if key == "next_hour_price"
-                        else float(price_data["total"])
-                    )
-            return None
+        for price_data in price_info.get("today", []):
+            starts_at = datetime.fromisoformat(price_data["startsAt"])
+            if starts_at.hour == target_hour:
+                return self._get_price_value(float(price_data["total"]), in_euro=in_euro)
 
         return None
 
-    def _get_statistics_value(self) -> float | None:
-        """Handle statistics sensor values."""
+    def _get_statistics_value(self, *, stat_func: Callable[[list[float]], float], in_euro: bool) -> float | None:
+        """Handle statistics sensor values using the provided statistical function."""
         if not self.coordinator.data:
             return None
 
-        price_info = self.coordinator.data["data"]["viewer"]["homes"][0][
-            "currentSubscription"
-        ]["priceInfo"]
+        price_info = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
         today_prices = price_info.get("today", [])
         if not today_prices:
             return None
 
-        key = self.entity_description.key
         prices = [float(price["total"]) for price in today_prices]
-
-        if key in ["lowest_price_today", "lowest_price_today_eur"]:
-            value = min(prices)
-        elif key in ["highest_price_today", "highest_price_today_eur"]:
-            value = max(prices)
-        elif key in ["average_price_today", "average_price_today_eur"]:
-            value = sum(prices) / len(prices)
-        else:
+        if not prices:
             return None
 
-        return self._get_price_value(value) if key.endswith("today") else value
+        value = stat_func(prices)
+        return self._get_price_value(value, in_euro=in_euro)
 
-    def _get_rating_value(self) -> float | None:
+    def _get_rating_value(self, *, rating_type: str) -> float | None:
         """Handle rating sensor values."""
         if not self.coordinator.data:
             return None
 
-        def check_hourly(entry: dict) -> bool:
-            return datetime.fromisoformat(entry["time"]).hour == now.hour
-
-        def check_daily(entry: dict) -> bool:
-            return datetime.fromisoformat(entry["time"]).date() == now.date()
-
-        def check_monthly(entry: dict) -> bool:
-            dt = datetime.fromisoformat(entry["time"])
-            return dt.month == now.month and dt.year == now.year
-
-        subscription = self.coordinator.data["data"]["viewer"]["homes"][0][
-            "currentSubscription"
-        ]
+        subscription = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]
         price_rating = subscription.get("priceRating", {}) or {}
         now = datetime.now(tz=UTC).astimezone()
 
-        key = self.entity_description.key
-        if key == "hourly_rating":
-            rating_data = price_rating.get("hourly", {})
-            entries = rating_data.get("entries", []) if rating_data else []
-            time_match = check_hourly
-        elif key == "daily_rating":
-            rating_data = price_rating.get("daily", {})
-            entries = rating_data.get("entries", []) if rating_data else []
-            time_match = check_daily
-        elif key == "monthly_rating":
-            rating_data = price_rating.get("monthly", {})
-            entries = rating_data.get("entries", []) if rating_data else []
-            time_match = check_monthly
-        else:
-            return None
+        rating_data = price_rating.get(rating_type, {})
+        entries = rating_data.get("entries", []) if rating_data else []
+
+        if rating_type == "hourly":
+            for entry in entries:
+                entry_time = datetime.fromisoformat(entry["time"])
+                if entry_time.hour == now.hour:
+                    return round(float(entry["difference"]) * 100, 1)
+        elif rating_type == "daily":
+            for entry in entries:
+                entry_time = datetime.fromisoformat(entry["time"])
+                if entry_time.date() == now.date():
+                    return round(float(entry["difference"]) * 100, 1)
+        elif rating_type == "monthly":
+            for entry in entries:
+                entry_time = datetime.fromisoformat(entry["time"])
+                if entry_time.month == now.month and entry_time.year == now.year:
+                    return round(float(entry["difference"]) * 100, 1)
 
-        for entry in entries:
-            if time_match(entry):
-                return round(float(entry["difference"]) * 100, 1)
         return None
 
-    def _get_diagnostic_value(self) -> datetime | str | None:
-        """Handle diagnostic sensor values."""
+    def _get_data_timestamp(self) -> datetime | None:
+        """Get the latest data timestamp."""
         if not self.coordinator.data:
             return None
 
-        price_info = self.coordinator.data["data"]["viewer"]["homes"][0][
-            "currentSubscription"
-        ]["priceInfo"]
-        key = self.entity_description.key
+        price_info = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
+        latest_timestamp = None
 
-        if key == "data_timestamp":
-            latest_timestamp = None
-            for day in ["today", "tomorrow"]:
-                for price_data in price_info.get(day, []):
-                    timestamp = datetime.fromisoformat(price_data["startsAt"])
-                    if not latest_timestamp or timestamp > latest_timestamp:
-                        latest_timestamp = timestamp
-            return dt_util.as_utc(latest_timestamp) if latest_timestamp else None
+        for day in ["today", "tomorrow"]:
+            for price_data in price_info.get(day, []):
+                timestamp = datetime.fromisoformat(price_data["startsAt"])
+                if not latest_timestamp or timestamp > latest_timestamp:
+                    latest_timestamp = timestamp
 
-        if key == "tomorrow_data_available":
-            tomorrow_prices = price_info.get("tomorrow", [])
-            if not tomorrow_prices:
-                return "No"
-            return "Yes" if len(tomorrow_prices) == HOURS_IN_DAY else "Partial"
+        return dt_util.as_utc(latest_timestamp) if latest_timestamp else None
 
-        return None
+    def _get_tomorrow_data_status(self) -> str | None:
+        """Get tomorrow's data availability status."""
+        if not self.coordinator.data:
+            return None
+
+        price_info = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
+        tomorrow_prices = price_info.get("tomorrow", [])
+
+        if not tomorrow_prices:
+            return "No"
+        return "Yes" if len(tomorrow_prices) == HOURS_IN_DAY else "Partial"
 
     @property
     def native_value(self) -> float | str | datetime | None:
         """Return the native value of the sensor."""
-        result = None
         try:
-            if self.coordinator.data:
-                key = self.entity_description.key
-                current_hour_data = self._get_current_hour_data()
-
-                if key == "price_level":
-                    result = current_hour_data["level"] if current_hour_data else None
-                elif key in [
-                    "current_price",
-                    "current_price_eur",
-                    "next_hour_price",
-                    "next_hour_price_eur",
-                ]:
-                    result = self._get_price_sensor_value()
-                elif "price_today" in key:
-                    result = self._get_statistics_value()
-                elif "rating" in key:
-                    result = self._get_rating_value()
-                elif key in ["data_timestamp", "tomorrow_data_available"]:
-                    result = self._get_diagnostic_value()
-                else:
-                    result = None
-            else:
-                result = None
+            if not self.coordinator.data or not self._value_getter:
+                return None
+            return self._value_getter()
         except (KeyError, ValueError, TypeError) as ex:
             self.coordinator.logger.exception(
                 "Error getting sensor value",
@@ -397,101 +374,57 @@ class TibberPricesSensor(TibberPricesEntity, SensorEntity):
                     "entity": self.entity_description.key,
                 },
             )
-            result = None
-        return result
+            return None
 
     @property
-    def extra_state_attributes(self) -> dict | None:  # noqa: PLR0912
+    def extra_state_attributes(self) -> dict | None:
         """Return additional state attributes."""
+        if not self.coordinator.data:
+            return None
+
+        attributes = self._get_sensor_attributes()
+
+        # Add translated description
+        if attributes and self.hass is not None:
+            base_key = "entity.sensor"
+            key = f"{base_key}.{self.entity_description.translation_key}.description"
+            language_config = getattr(self.hass.config, "language", None)
+            if isinstance(language_config, dict):
+                description = language_config.get(key)
+                if description is not None:
+                    attributes = dict(attributes)  # Make a copy before modifying
+                    attributes["description"] = description
+
+        return attributes
+
+    def _get_sensor_attributes(self) -> dict | None:
+        """Get attributes based on sensor type."""
         try:
-            if not self.coordinator.data:
-                return None
+            key = self.entity_description.key
+            attributes: dict[str, Any] = {}
 
-            subscription = self.coordinator.data["data"]["viewer"]["homes"][0][
-                "currentSubscription"
-            ]
-            price_info = subscription["priceInfo"]
+            # Get the timestamp attribute for different sensor types
+            price_info = self.coordinator.data["data"]["viewer"]["homes"][0]["currentSubscription"]["priceInfo"]
 
-            attributes = {}
-
-            # Get current hour's data for timestamp
-            now = datetime.now(tz=UTC).astimezone()
             current_hour_data = self._get_current_hour_data()
+            now = datetime.now(tz=UTC).astimezone()
 
-            if self.entity_description.key in ["current_price", "current_price_eur"]:
-                attributes["timestamp"] = (
-                    current_hour_data["startsAt"] if current_hour_data else None
-                )
-
-            if self.entity_description.key in [
-                "next_hour_price",
-                "next_hour_price_eur",
-            ]:
+            # Price sensors timestamps
+            if key in ["current_price", "current_price_eur", "price_level"]:
+                attributes["timestamp"] = current_hour_data["startsAt"] if current_hour_data else None
+            elif key in ["next_hour_price", "next_hour_price_eur"]:
                 next_hour = (now.hour + 1) % 24
                 for price_data in price_info.get("today", []):
                     starts_at = datetime.fromisoformat(price_data["startsAt"])
                     if starts_at.hour == next_hour:
                         attributes["timestamp"] = price_data["startsAt"]
                         break
-
-            if self.entity_description.key == "price_level":
-                attributes["timestamp"] = (
-                    current_hour_data["startsAt"] if current_hour_data else None
-                )
-
-            if self.entity_description.key == "lowest_price_today":
-                attributes["timestamp"] = price_info.get("today", [{}])[0].get(
-                    "startsAt"
-                )
-
-            if self.entity_description.key == "highest_price_today":
-                attributes["timestamp"] = price_info.get("today", [{}])[0].get(
-                    "startsAt"
-                )
-
-            if self.entity_description.key == "average_price_today":
-                attributes["timestamp"] = price_info.get("today", [{}])[0].get(
-                    "startsAt"
-                )
-
-            if self.entity_description.key == "hourly_rating":
-                attributes["timestamp"] = (
-                    current_hour_data["startsAt"] if current_hour_data else None
-                )
-
-            if self.entity_description.key == "daily_rating":
-                attributes["timestamp"] = price_info.get("today", [{}])[0].get(
-                    "startsAt"
-                )
-
-            if self.entity_description.key == "monthly_rating":
-                attributes["timestamp"] = price_info.get("today", [{}])[0].get(
-                    "startsAt"
-                )
-
-            if self.entity_description.key == "data_timestamp":
-                attributes["timestamp"] = price_info.get("today", [{}])[0].get(
-                    "startsAt"
-                )
-
-            if self.entity_description.key == "tomorrow_data_available":
-                attributes["timestamp"] = price_info.get("today", [{}])[0].get(
-                    "startsAt"
-                )
-
-            # Add translated description
-            if self.hass is not None:
-                base_key = "entity.sensor"
-                key = (
-                    f"{base_key}.{self.entity_description.translation_key}.description"
-                )
-                language_config = getattr(self.hass.config, "language", None)
-                if isinstance(language_config, dict):
-                    description = language_config.get(key)
-                    if description is not None:
-                        attributes["description"] = description
-
-            return attributes if attributes else None  # noqa: TRY300
+            # Statistics, rating, and diagnostic sensors
+            elif any(
+                pattern in key for pattern in ["_price_today", "rating", "data_timestamp", "tomorrow_data_available"]
+            ):
+                first_timestamp = price_info.get("today", [{}])[0].get("startsAt")
+                attributes["timestamp"] = first_timestamp
 
         except (KeyError, ValueError, TypeError) as ex:
             self.coordinator.logger.exception(
@@ -502,3 +435,5 @@ class TibberPricesSensor(TibberPricesEntity, SensorEntity):
                 },
             )
             return None
+        else:
+            return attributes if attributes else None

pyproject.toml

@@ -0,0 +1,10 @@
+# pyproject.toml
+
+[tool.black]
+line-length = 120
+target-version = ['py313']
+skip-string-normalization = false
+
+[tool.isort]
+profile = "black"
+line_length = 120