fix

frontend/src/api/backend.ts

@@ -270,6 +270,18 @@ export async function getSitePrices(siteId: number, date: string): Promise<SiteE
   return Array.isArray(data) ? data : []
 }
 
+export async function getSitePricesSlotsRange(
+  siteId: number,
+  fromIso: string,
+  toIso: string,
+): Promise<SiteEffectivePriceRowDto[]> {
+  const { data } = await client.get<{ slots?: SiteEffectivePriceRowDto[] }>(
+    `/sites/${siteId}/prices/slots`,
+    { params: { from: fromIso, to: toIso }, timeout: 60_000 },
+  )
+  return Array.isArray(data?.slots) ? data.slots : []
+}
+
 export type ForecastPvIntervalRow = {
   interval_start: string
   power_w?: number | string | null

frontend/src/hooks/useDashboardData.ts

@@ -4,6 +4,7 @@ import { useCallback, useEffect, useMemo, useRef, useState } from 'react'
 import {
   getCurrentPlan,
   getForecastPvSlotsRangeCorrected,
+  getSitePricesSlotsRange,
 } from '../api/backend'
 import { getJson } from '../api/postgrest'
 import {
@@ -20,7 +21,6 @@ import type {
   HeatPumpLatestRow,
   ModeLogRecentRow,
   SiteStatusRow,
-  SiteEffectivePriceRow,
   Telemetry15m7dRow,
 } from '../types/ems'
 import type { PlanningIntervalDto } from '../types/plan'
@@ -220,15 +220,12 @@ export function useDashboardData(siteId: number | null) {
           limit: '200',
         }),
         getJson<HeatPumpLatestRow[]>('/vw_latest_heat_pump', { site_id: `eq.${siteId}` }),
-        // Ceny bereme v jednom range dotazu přes PostgREST view (místo N× /api/v1/sites/{id}/prices?date=...).
-        // Okno: [windowStart, windowStart + TOTAL_SLOTS) pro mapování na sloty.
-        getJson<SiteEffectivePriceRow[]>('/vw_site_effective_price', {
-          site_id: `eq.${siteId}`,
-          interval_start: `gte.${new Date(windowStart).toISOString()}`,
-          interval_end: `lt.${new Date(windowStart + TOTAL_SLOTS * SLOT_MS).toISOString()}`,
-          order: 'interval_start.asc',
-          limit: String(TOTAL_SLOTS + 32),
-        }),
+        // Ceny bereme přes FastAPI range endpoint (PostgREST /rest je u vás chráněné → 401).
+        getSitePricesSlotsRange(
+          siteId,
+          new Date(windowStart).toISOString(),
+          new Date(windowStart + TOTAL_SLOTS * SLOT_MS).toISOString(),
+        ),
       ])
 
       const status = Array.isArray(statusArr) && statusArr[0] ? statusArr[0]! : null
@@ -242,7 +239,7 @@ export function useDashboardData(siteId: number | null) {
       }
 
       const priceBySlot = new Map<string, { buy: number | null; sell: number | null }>()
-      const flatPrices: SiteEffectivePriceRow[] = Array.isArray(priceRows) ? priceRows : []
+      const flatPrices = Array.isArray(priceRows) ? priceRows : []
       for (const r of flatPrices) {
         const k = slotTimeKey(new Date(r.interval_start).getTime())
         priceBySlot.set(k, {