Standardize all energy period calculations

src/data/energy.ts

@@ -449,16 +449,9 @@ const getEnergyData = async (
   const allStatIDs = [...energyStatIds, ...waterStatIds, ...powerStatIds];
 
   const dayDifference = differenceInDays(end || new Date(), start);
-  const period =
-    isFirstDayOfMonth(start) &&
-    (!end || isLastDayOfMonth(end)) &&
-    dayDifference > 35
-      ? "month"
-      : dayDifference > 2
-        ? "day"
-        : "hour";
-  const finePeriod =
-    dayDifference > 64 ? "day" : dayDifference > 8 ? "hour" : "5minute";
+
+  const period = getSuggestedPeriod(start, end);
+  const finePeriod = getSuggestedPeriod(start, end, true);
 
   const statsMetadata: Record<string, StatisticsMetaData> = {};
   const statsMetadataArray = allStatIDs.length
@@ -589,7 +582,7 @@ const getEnergyData = async (
       consumptionStatIDs,
       co2SignalEntity,
       end,
-      dayDifference > 35 ? "month" : dayDifference > 2 ? "day" : "hour"
+      period
     );
     if (compare) {
       _fossilEnergyConsumptionCompare = getFossilEnergyConsumption(
@@ -598,7 +591,7 @@ const getEnergyData = async (
         consumptionStatIDs,
         co2SignalEntity,
         endCompare,
-        dayDifference > 35 ? "month" : dayDifference > 2 ? "day" : "hour"
+        period
       );
     }
   }
@@ -1427,3 +1420,22 @@ export const formatPowerShort = (
     units[unitIndex]
   );
 };
+
+export function getSuggestedPeriod(
+  start: Date,
+  end?: Date,
+  fine = false
+): "5minute" | "hour" | "day" | "month" {
+  const dayDifference = differenceInDays(end || new Date(), start);
+
+  if (fine) {
+    return dayDifference > 64 ? "day" : dayDifference > 8 ? "hour" : "5minute";
+  }
+  return isFirstDayOfMonth(start) &&
+    (!end || isLastDayOfMonth(end)) &&
+    dayDifference > 35
+    ? "month"
+    : dayDifference > 2
+      ? "day"
+      : "hour";
+}

src/panels/lovelace/cards/energy/common/energy-chart-options.ts

@@ -31,6 +31,7 @@ import { formatTime } from "../../../../../common/datetime/format_time";
 import type { ECOption } from "../../../../../resources/echarts/echarts";
 import { filterXSS } from "../../../../../common/util/xss";
 import type { StatisticPeriod } from "../../../../../data/recorder";
+import { getSuggestedPeriod } from "../../../../../data/energy";
 
 export function getSuggestedMax(period: StatisticPeriod, end: Date): number {
   let suggestedMax = new Date(end);
@@ -56,10 +57,6 @@ export function getSuggestedMax(period: StatisticPeriod, end: Date): number {
   return suggestedMax.getTime();
 }
 
-export function getSuggestedPeriod(dayDifference: number): StatisticPeriod {
-  return dayDifference > 35 ? "month" : dayDifference > 2 ? "day" : "hour";
-}
-
 function createYAxisLabelFormatter(locale: FrontendLocaleData) {
   let previousValue: number | undefined;
 
@@ -95,7 +92,7 @@ export function getCommonOptions(
       type: "time",
       min: start,
       max: getSuggestedMax(
-        detailedDailyData ? "5minute" : getSuggestedPeriod(dayDifference),
+        getSuggestedPeriod(start, end, detailedDailyData),
         end
       ),
     },

src/panels/lovelace/cards/energy/hui-energy-solar-graph-card.ts

@@ -1,4 +1,4 @@
-import { differenceInDays, endOfToday, isToday, startOfToday } from "date-fns";
+import { endOfToday, isToday, startOfToday } from "date-fns";
 import type { HassConfig, UnsubscribeFunc } from "home-assistant-js-websocket";
 import type { PropertyValues } from "lit";
 import { css, html, LitElement, nothing } from "lit";
@@ -18,6 +18,7 @@ import type {
 import {
   getEnergyDataCollection,
   getEnergySolarForecasts,
+  getSuggestedPeriod,
 } from "../../../../data/energy";
 import type { Statistics, StatisticsMetaData } from "../../../../data/recorder";
 import { getStatisticLabel } from "../../../../data/recorder";
@@ -354,7 +355,7 @@ export class HuiEnergySolarGraphCard
   ) {
     const data: LineSeriesOption[] = [];
 
-    const dayDifference = differenceInDays(end || new Date(), start);
+    const period = getSuggestedPeriod(start, end);
 
     // Process solar forecast data.
     solarSources.forEach((source) => {
@@ -370,10 +371,10 @@ export class HuiEnergySolarGraphCard
               if (dateObj < start || (end && dateObj > end)) {
                 return;
               }
-              if (dayDifference > 35) {
+              if (period === "month") {
                 dateObj.setDate(1);
               }
-              if (dayDifference > 2) {
+              if (period === "month" || period === "day") {
                 dateObj.setHours(0, 0, 0, 0);
               } else {
                 dateObj.setMinutes(0, 0, 0);

src/panels/lovelace/cards/hui-statistics-graph-card.ts

@@ -8,7 +8,10 @@ import { createSearchParam } from "../../../common/url/search-params";
 import "../../../components/ha-card";
 import "../../../components/ha-icon-next";
 import "../../../components/ha-tooltip";
-import { getEnergyDataCollection } from "../../../data/energy";
+import {
+  getEnergyDataCollection,
+  getSuggestedPeriod,
+} from "../../../data/energy";
 import type {
   Statistics,
   StatisticsMetaData,
@@ -26,10 +29,7 @@ import { hasConfigOrEntitiesChanged } from "../common/has-changed";
 import { processConfigEntities } from "../common/process-config-entities";
 import type { EntityConfig } from "../entity-rows/types";
 import type { LovelaceCard, LovelaceGridOptions } from "../types";
-import {
-  getSuggestedMax,
-  getSuggestedPeriod,
-} from "./energy/common/energy-chart-options";
+import { getSuggestedMax } from "./energy/common/energy-chart-options";
 import type { StatisticsGraphCardConfig } from "./types";
 
 export const DEFAULT_DAYS_TO_SHOW = 30;
@@ -268,9 +268,7 @@ export class HuiStatisticsGraphCard extends LitElement implements LovelaceCard {
     return (
       this._config?.period ??
       (this._energyStart && this._energyEnd
-        ? getSuggestedPeriod(
-            differenceInDays(this._energyEnd, this._energyStart)
-          )
+        ? getSuggestedPeriod(this._energyStart, this._energyEnd)
         : undefined)
     );
   }