x

2026-03-20 14:30:03 +01:00
parent 2cc5ccfda7
commit 897b95f728
48 changed files with 4034 additions and 842 deletions
--- a/frontend/src/pages/Dashboard.tsx
+++ b/frontend/src/pages/Dashboard.tsx
@@ -1,10 +1,31 @@
-import { Battery, Sun, Zap } from 'lucide-react'
-import { PowerFlowCard } from '../components/PowerFlowCard'
-import { SocGauge } from '../components/SocGauge'
-import { TelemetryChart } from '../components/TelemetryChart'
+import { useState } from 'react'
+import { Sun, Battery, Zap, Home, ChevronDown, ChevronUp } from 'lucide-react'
+import {
+  Area,
+  Bar,
+  CartesianGrid,
+  Cell,
+  ComposedChart,
+  Line,
+  ResponsiveContainer,
+  Tooltip,
+  XAxis,
+  YAxis,
+} from 'recharts'
+
 import { useAuditDailyToday } from '../hooks/useAuditDailyToday'
+import { useCurrentPlan } from '../hooks/useCurrentPlan'
+import { useFullStatus } from '../hooks/useFullStatus'
 import { useSiteStatus } from '../hooks/useSiteStatus'
-import { useTelemetryToday } from '../hooks/useTelemetryToday'
+import { useTelemetryToday, type TelemetryChartPoint } from '../hooks/useTelemetryToday'
+import type { PlanningIntervalDto } from '../types/plan'
+
+const BAT_PLAN_W = 80
+
+function fmtKw2(w: number | null | undefined): string {
+  if (w == null || Number.isNaN(w)) return '—'
+  return `${(w / 1000).toFixed(2)} kW`
+}

 function fmtEnergy(v: string | number | null | undefined): string {
  const n = typeof v === 'number' ? v : v == null ? NaN : Number(v)
@@ -18,6 +39,13 @@ function fmtMoney(v: string | number | null | undefined): string {
  return `${n.toLocaleString('cs-CZ', { minimumFractionDigits: 2, maximumFractionDigits: 2 })} Kč`
 }

+function parseNum(v: string | number | null | undefined): number | null {
+  if (v == null) return null
+  if (typeof v === 'number' && !Number.isNaN(v)) return v
+  const n = Number(v)
+  return Number.isFinite(n) ? n : null
+}
+
 function modeBadgeClass(code: string | null): string {
  const c = (code ?? '').toUpperCase()
  if (c.includes('AUTO')) return 'bg-emerald-500/15 text-emerald-300 ring-1 ring-emerald-500/35'
@@ -27,146 +55,571 @@ function modeBadgeClass(code: string | null): string {
  return 'bg-slate-700/60 text-slate-200 ring-1 ring-slate-600/50'
 }

-function batteryStyles(powerW: number | null | undefined): { border: string; icon: string } {
-  if (powerW == null || Number.isNaN(powerW)) {
-    return { border: 'border-l-slate-600', icon: 'text-slate-400' }
-  }
-  if (powerW >= 0) {
-    return { border: 'border-l-emerald-500', icon: 'text-emerald-400' }
-  }
-  return { border: 'border-l-orange-500', icon: 'text-orange-400' }
+function formatTelemetryAgo(iso: string | null | undefined): string {
+  if (iso == null) return '—'
+  const diffMin = Math.floor((Date.now() - new Date(iso).getTime()) / 60_000)
+  if (diffMin <= 0) return 'právě teď'
+  if (diffMin === 1) return 'před 1 minutou'
+  if (diffMin >= 2 && diffMin <= 4) return `před ${diffMin} minutami`
+  return `před ${diffMin} minutami`
 }

-function gridStyles(powerW: number | null | undefined): { border: string; icon: string } {
-  if (powerW == null || Number.isNaN(powerW)) {
-    return { border: 'border-l-slate-600', icon: 'text-slate-400' }
-  }
-  if (powerW >= 0) {
-    return { border: 'border-l-red-500', icon: 'text-red-400' }
-  }
-  return { border: 'border-l-emerald-500', icon: 'text-emerald-400' }
+function floorToSlotUtc(ms: number): number {
+  const slot = 15 * 60 * 1000
+  return Math.floor(ms / slot) * slot
 }

-function SectionTitle({ kicker, title }: { kicker: string; title: string }) {
+function nextPlanSlots(intervals: PlanningIntervalDto[], count: number): PlanningIntervalDto[] {
+  if (!intervals.length) return []
+  const sorted = [...intervals].sort(
+    (a, b) => new Date(a.interval_start).getTime() - new Date(b.interval_start).getTime(),
+  )
+  const boundary = floorToSlotUtc(Date.now())
+  const upcoming = sorted.filter((iv) => new Date(iv.interval_start).getTime() >= boundary - 1)
+  return upcoming.slice(0, count)
+}
+
+function meanBuyPrice(slots: PlanningIntervalDto[]): number | null {
+  const vals = slots
+    .map((s) => s.effective_buy_price)
+    .filter((x): x is number => x != null && Number.isFinite(x))
+  if (!vals.length) return null
+  return vals.reduce((a, b) => a + b, 0) / vals.length
+}
+
+function slotBgClass(slot: PlanningIntervalDto, avgBuy: number | null): string {
+  const b = slot.battery_setpoint_w ?? 0
+  if (b > BAT_PLAN_W) return 'bg-emerald-500'
+  if (b < -BAT_PLAN_W) return 'bg-orange-500'
+  const buy = slot.effective_buy_price
+  if (buy != null && avgBuy != null && avgBuy > 0) {
+    if (buy > avgBuy * 1.15) return 'bg-red-500'
+    if (buy < avgBuy * 0.85) return 'bg-amber-400'
+  }
+  return 'bg-slate-600'
+}
+
+function formatSlotLabel(iso: string): string {
+  return new Date(iso).toLocaleTimeString('cs-CZ', {
+    hour: '2-digit',
+    minute: '2-digit',
+    timeZone: 'Europe/Prague',
+  })
+}
+
+type ChartTipPayload = { name?: string; value?: number; dataKey?: string | number }
+
+function ChartTooltip({
+  active,
+  payload,
+  label,
+}: {
+  active?: boolean
+  payload?: ChartTipPayload[]
+  label?: string
+}) {
+  if (!active || !payload?.length) return null
  return (
-    <div className="mb-4">
-      <p className="text-xs font-semibold uppercase tracking-widest text-slate-500">{kicker}</p>
-      <h2 className="text-lg font-semibold text-slate-100">{title}</h2>
+    <div className="rounded-lg border border-slate-600 bg-slate-900/95 px-3 py-2 text-xs text-slate-100 shadow-xl">
+      <p className="mb-1 font-medium text-slate-200">{label}</p>
+      <ul className="space-y-0.5 tabular-nums">
+        {payload.map((p) => (
+          <li key={String(p.dataKey)} className="flex justify-between gap-6">
+            <span className="text-slate-400">{p.name}</span>
+            <span>{typeof p.value === 'number' ? `${p.value.toFixed(2)} kW` : '—'}</span>
+          </li>
+        ))}
+      </ul>
    </div>
  )
 }

-function CardSkeleton() {
-  return <div className="h-[88px] animate-pulse rounded-xl border border-slate-800 bg-slate-900/40" />
-}
+function SemicircleSocGauge({ socPercent }: { socPercent: string | number | null | undefined }) {
+  const raw = parseNum(socPercent)
+  const pct = raw == null ? null : Math.max(0, Math.min(100, raw))
+  const r = 88
+  const halfLen = Math.PI * r
+  const stroke =
+    pct == null ? 'text-slate-600' : pct < 20 ? 'text-red-500' : pct > 80 ? 'text-blue-500' : 'text-emerald-500'

-function StatBlock({ label, value }: { label: string; value: string }) {
  return (
-    <div className="rounded-xl border border-slate-800 bg-slate-900/50 p-4">
-      <p className="text-xs font-medium uppercase tracking-wide text-slate-500">{label}</p>
-      <p className="mt-1 text-lg font-semibold tabular-nums text-slate-100">{value}</p>
+    <div className="flex flex-col items-center pt-2">
+      <div className="relative h-[120px] w-[220px]">
+        <svg viewBox="0 0 200 110" className="h-full w-full" aria-hidden>
+          <path
+            d="M 12 100 A 88 88 0 0 1 188 100"
+            fill="none"
+            stroke="currentColor"
+            strokeWidth="14"
+            className="text-slate-800"
+          />
+          {pct != null && (
+            <path
+              d="M 12 100 A 88 88 0 0 1 188 100"
+              fill="none"
+              stroke="currentColor"
+              strokeWidth="14"
+              strokeLinecap="round"
+              strokeDasharray={halfLen}
+              strokeDashoffset={halfLen * (1 - pct / 100)}
+              className={stroke}
+              style={{ transition: 'stroke-dashoffset 0.5s ease' }}
+            />
+          )}
+        </svg>
+        <div className="absolute inset-0 flex flex-col items-center justify-end pb-1">
+          <span className="text-3xl font-bold tabular-nums text-slate-50">
+            {pct == null ? '—' : `${pct.toFixed(0)}`}
+          </span>
+          <span className="text-xs text-slate-500">% SoC</span>
+        </div>
+      </div>
    </div>
  )
 }

-function StatSkeleton() {
-  return <div className="h-[76px] animate-pulse rounded-xl border border-slate-800 bg-slate-900/40" />
+function MetricSkeleton() {
+  return <div className="h-[104px] animate-pulse rounded-xl border border-slate-800 bg-slate-900/40" />
+}
+
+function BlockSkeleton({ className = '' }: { className?: string }) {
+  return <div className={`animate-pulse rounded-xl border border-slate-800 bg-slate-900/40 ${className}`} />
 }

 export function Dashboard() {
-  const { site, ready: siteReady, hasLiveData } = useSiteStatus()
+  const { site, ready: siteReady, error: siteError, hasLiveData, reload: reloadSite } = useSiteStatus()
  const siteId = site?.site_id ?? null
-  const { points, ready: telemetryReady, hasChartData } = useTelemetryToday(siteId)
-  const { daily, ready: auditReady, hasDaily } = useAuditDailyToday(siteId)
+  const { fullStatus } = useFullStatus(siteId)
+  const [alertsOpen, setAlertsOpen] = useState(false)

-  const liveSkeleton = !siteReady || !hasLiveData
-  const chartSkeleton = !telemetryReady || !hasChartData
-  const econSkeleton = !auditReady || !hasDaily
+  const {
+    points,
+    ready: chartReady,
+    error: chartError,
+    hasChartData,
+    reload: reloadChart,
+  } = useTelemetryToday(siteId)
+  const {
+    daily,
+    ready: auditReady,
+    error: auditError,
+    hasDaily,
+    reload: reloadAudit,
+  } = useAuditDailyToday(siteId)
+  const { plan, ready: planReady, error: planError, reload: reloadPlan } = useCurrentPlan(siteId)

-  const hbOk = site?.ems_heartbeat_status === 'ok'
-  const bat = batteryStyles(site?.battery_power_w ?? null)
-  const grd = gridStyles(site?.grid_power_w ?? null)
+  const fetchError = siteError ?? chartError ?? auditError ?? planError
+  const retryAll = () => {
+    void reloadSite()
+    void reloadChart()
+    void reloadAudit()
+    void reloadPlan()
+  }
+
+  const metricsLoading = !siteReady
+  const chartLoading = !chartReady
+  const summaryLoading = !auditReady
+  const planLoading = !planReady
+
+  const hbOnline = site?.ems_heartbeat_status === 'ok'
+
+  const monitoringAlerts = fullStatus?.alerts ?? []
+  const hasMonitoringAlerts = monitoringAlerts.length > 0
+  const monitoringHasError = monitoringAlerts.some((a) => a.level === 'error')
+
+  const gridW = site?.grid_power_w ?? null
+  const gridLabel =
+    gridW == null || Number.isNaN(gridW)
+      ? '—'
+      : gridW >= 0
+        ? `+${(gridW / 1000).toFixed(2)} kW import`
+        : `${(gridW / 1000).toFixed(2)} kW export`
+
+  const batW = site?.battery_power_w ?? null
+  const batPct = parseNum(site?.battery_soc_percent)
+  const batSignedKw =
+    batW == null || Number.isNaN(batW) ? null : Math.abs(batW / 1000) * (batW >= 0 ? 1 : -1)
+
+  const planSlots = nextPlanSlots(plan.intervals, 16)
+  const avgBuy = meanBuyPrice(planSlots)
+
+  const chartData: TelemetryChartPoint[] = points

  return (
-    <div className="min-h-screen bg-slate-950 p-4 md:p-8">
-      <div className="mx-auto max-w-7xl space-y-10">
-        <header className="flex flex-col gap-4 border-b border-slate-800/80 pb-6 md:flex-row md:items-center md:justify-between">
-          <div>
-            <h1 className="text-2xl font-bold tracking-tight text-white">EMS Platform</h1>
-            <p className="mt-1 text-sm text-slate-400">Přehled lokality a auditu</p>
+    <div className="min-h-screen bg-slate-950 p-4 text-slate-100 md:p-8">
+      <div className="mx-auto max-w-7xl space-y-8">
+        {fetchError ? (
+          <div
+            className="flex flex-col gap-3 rounded-xl border border-red-500/40 bg-red-950/40 px-4 py-3 sm:flex-row sm:items-center sm:justify-between"
+            role="alert"
+          >
+            <p className="text-sm font-medium text-red-200">Chyba načítání dat</p>
+            <button
+              type="button"
+              onClick={() => retryAll()}
+              className="rounded-lg bg-red-600 px-4 py-2 text-sm font-semibold text-white hover:bg-red-500"
+            >
+              Zkusit znovu
+            </button>
          </div>
-          {!siteReady ? (
-            <div className="h-10 w-56 animate-pulse rounded-lg bg-slate-800/80" />
-          ) : site ? (
-            <div className="flex flex-wrap items-center gap-3">
-              <span className="text-sm text-slate-400">{site.site_name}</span>
-              <span
-                className={`rounded-md px-2.5 py-1 text-xs font-semibold uppercase tracking-wide ${modeBadgeClass(site.active_mode)}`}
-                title={site.mode_description ?? undefined}
-              >
-                {site.active_mode ?? '—'}
-                {site.mode_name ? ` · ${site.mode_name}` : ''}
-              </span>
-              <span className="flex items-center gap-2 text-xs text-slate-500">
-                <span className="relative flex h-2.5 w-2.5">
-                  <span
-                    className={`inline-flex h-2.5 w-2.5 rounded-full ${hbOk ? 'bg-emerald-500' : 'bg-red-500'}`}
-                    title={site.ems_heartbeat_status ?? 'neznámý'}
-                  />
-                </span>
-                EMS
-              </span>
-            </div>
-          ) : null}
+        ) : null}
+
+        <header className="border-b border-slate-800/80 pb-6">
+          <h1 className="text-2xl font-bold tracking-tight text-white">EMS Platform</h1>
+          <p className="mt-1 text-sm text-slate-400">Přehled lokality, auditu a plánu</p>
        </header>

+        {/* Horní metriky */}
        <section>
-          <SectionTitle kicker="Živě" title="Aktuální stav" />
-          {liveSkeleton ? (
-            <div className="grid gap-4 md:grid-cols-2 xl:grid-cols-4">
-              <CardSkeleton />
-              <CardSkeleton />
-              <div className="flex min-h-[88px] items-center justify-center rounded-xl border border-slate-800 bg-slate-900/40">
-                <div className="h-36 w-36 animate-pulse rounded-full bg-slate-800/80" />
+          <div className="grid grid-cols-1 gap-3 sm:grid-cols-2 xl:grid-cols-4">
+            {metricsLoading ? (
+              <>
+                <MetricSkeleton />
+                <MetricSkeleton />
+                <MetricSkeleton />
+                <MetricSkeleton />
+              </>
+            ) : site == null ? (
+              <p className="col-span-full text-sm text-slate-500">Žádná lokalita ve vw_site_status.</p>
+            ) : (
+              <>
+                <div className="rounded-xl border border-slate-800 border-l-4 border-l-amber-400 bg-slate-900/60 p-4 pl-3">
+                  <div className="flex items-center gap-3">
+                    <div className="flex h-12 w-12 shrink-0 items-center justify-center rounded-lg bg-slate-800/80">
+                      <Sun className="h-6 w-6 text-amber-400" aria-hidden />
+                    </div>
+                    <div className="min-w-0 flex-1">
+                      <p className="text-xs font-medium uppercase tracking-wide text-slate-500">FVE výroba</p>
+                      <p className="text-xl font-semibold tabular-nums text-amber-300">
+                        {hasLiveData ? fmtKw2(site.pv_power_w) : '—'}{' '}
+                        <span className="text-lg" aria-hidden>
+                          ☀️
+                        </span>
+                      </p>
+                    </div>
+                  </div>
+                </div>
+
+                <div className="rounded-xl border border-slate-800 bg-slate-900/60 p-4">
+                  <div className="flex items-center gap-3">
+                    <div
+                      className={`flex h-12 w-12 shrink-0 items-center justify-center rounded-lg bg-slate-800/80 ${
+                        batW != null && !Number.isNaN(batW)
+                          ? batW >= 0
+                            ? 'text-emerald-400'
+                            : 'text-orange-400'
+                          : 'text-slate-400'
+                      }`}
+                    >
+                      <Battery className="h-6 w-6" aria-hidden />
+                    </div>
+                    <div className="min-w-0 flex-1">
+                      <p className="text-xs font-medium uppercase tracking-wide text-slate-500">Baterie</p>
+                      <p className="text-xl font-semibold tabular-nums text-slate-100">
+                        {batPct == null ? '—' : `${batPct.toFixed(0)}%`}
+                        {batSignedKw == null ? '' : ` / ${batSignedKw >= 0 ? '+' : ''}${batSignedKw.toFixed(2)} kW`}
+                      </p>
+                      <div className="mt-2 h-2 overflow-hidden rounded-full bg-slate-800">
+                        <div
+                          className={`h-full rounded-full transition-all ${
+                            batW != null && !Number.isNaN(batW) && batW < 0 ? 'bg-orange-500' : 'bg-emerald-500'
+                          }`}
+                          style={{ width: `${batPct ?? 0}%` }}
+                        />
+                      </div>
+                    </div>
+                  </div>
+                </div>
+
+                <div
+                  className={`rounded-xl border border-slate-800 bg-slate-900/60 p-4 pl-3 border-l-4 ${
+                    gridW != null && !Number.isNaN(gridW)
+                      ? gridW >= 0
+                        ? 'border-l-red-500'
+                        : 'border-l-emerald-500'
+                      : 'border-l-slate-600'
+                  }`}
+                >
+                  <div className="flex items-center gap-3">
+                    <div className="flex h-12 w-12 shrink-0 items-center justify-center rounded-lg bg-slate-800/80">
+                      <Zap
+                        className={`h-6 w-6 ${
+                          gridW != null && !Number.isNaN(gridW)
+                            ? gridW >= 0
+                              ? 'text-red-400'
+                              : 'text-emerald-400'
+                            : 'text-slate-400'
+                        }`}
+                        aria-hidden
+                      />
+                    </div>
+                    <div className="min-w-0 flex-1">
+                      <p className="text-xs font-medium uppercase tracking-wide text-slate-500">Síť</p>
+                      <p className="text-xl font-semibold tabular-nums text-slate-100">{gridLabel}</p>
+                      <p className="mt-0.5 text-xs text-slate-500">
+                        {gridW != null && !Number.isNaN(gridW)
+                          ? gridW >= 0
+                            ? 'import'
+                            : 'export'
+                          : ''}
+                      </p>
+                    </div>
+                  </div>
+                </div>
+
+                <div className="rounded-xl border border-slate-800 border-l-4 border-l-blue-500 bg-slate-900/60 p-4 pl-3">
+                  <div className="flex items-center gap-3">
+                    <div className="flex h-12 w-12 shrink-0 items-center justify-center rounded-lg bg-slate-800/80">
+                      <Home className="h-6 w-6 text-blue-400" aria-hidden />
+                    </div>
+                    <div className="min-w-0 flex-1">
+                      <p className="text-xs font-medium uppercase tracking-wide text-slate-500">Spotřeba</p>
+                      <p className="text-xl font-semibold tabular-nums text-blue-300">
+                        {hasLiveData ? fmtKw2(site.load_power_w) : '—'}
+                      </p>
+                    </div>
+                  </div>
+                </div>
+              </>
+            )}
+          </div>
+
+          {/* Status řádek */}
+          {!metricsLoading && site != null ? (
+            <div className="mt-4 space-y-3">
+              <div className="flex flex-wrap items-center gap-3 text-sm">
+                <span className="text-slate-500">Aktivní režim:</span>
+                <span
+                  className={`rounded-md px-2.5 py-1 text-xs font-semibold uppercase tracking-wide ${modeBadgeClass(site.active_mode)}`}
+                  title={site.mode_description ?? undefined}
+                >
+                  {site.active_mode ?? '—'}
+                  {site.mode_name ? ` · ${site.mode_name}` : ''}
+                </span>
+                <span className="flex items-center gap-2 text-slate-400">
+                  <span className="relative flex h-2.5 w-2.5">
+                    <span
+                      className={`inline-flex h-2.5 w-2.5 rounded-full ${hbOnline ? 'bg-emerald-500' : 'bg-red-500'}`}
+                    />
+                  </span>
+                  EMS:{' '}
+                  <span className={hbOnline ? 'text-emerald-400' : 'text-red-400'}>
+                    {hbOnline ? 'online' : 'offline'}
+                  </span>
+                </span>
+                <span className="text-slate-500">
+                  Poslední telemetrie:{' '}
+                  <span className="text-slate-300">{formatTelemetryAgo(site.telemetry_at)}</span>
+                </span>
              </div>
-              <CardSkeleton />
+
+              {hasMonitoringAlerts ? (
+                <div className="w-full max-w-2xl">
+                  <button
+                    type="button"
+                    onClick={() => setAlertsOpen((o) => !o)}
+                    className={`flex w-full items-center justify-between gap-3 rounded-lg border px-3 py-2 text-left text-sm font-medium transition hover:opacity-95 ${
+                      monitoringHasError
+                        ? 'border-red-500/45 bg-red-950/45 text-red-100'
+                        : 'border-amber-500/40 bg-amber-950/35 text-amber-100'
+                    }`}
+                    aria-expanded={alertsOpen}
+                  >
+                    <span>
+                      {monitoringAlerts.length}{' '}
+                      {monitoringAlerts.length === 1 ? 'alert' : 'alertů'}
+                      {monitoringHasError ? ' · obsahuje chyby' : ''}
+                    </span>
+                    {alertsOpen ? (
+                      <ChevronUp className="h-4 w-4 shrink-0 opacity-80" aria-hidden />
+                    ) : (
+                      <ChevronDown className="h-4 w-4 shrink-0 opacity-80" aria-hidden />
+                    )}
+                  </button>
+                  {alertsOpen ? (
+                    <ul
+                      className={`mt-2 space-y-1.5 rounded-lg border px-3 py-2 text-sm ${
+                        monitoringHasError
+                          ? 'border-red-500/30 bg-red-950/25 text-red-100'
+                          : 'border-amber-500/25 bg-amber-950/20 text-amber-50'
+                      }`}
+                      role="list"
+                    >
+                      {monitoringAlerts.map((a, i) => (
+                        <li
+                          key={`${a.level}-${i}-${a.message}`}
+                          className={
+                            a.level === 'error'
+                              ? 'text-red-200'
+                              : 'text-amber-200'
+                          }
+                        >
+                          <span className="font-semibold uppercase tracking-wide text-[10px] opacity-80">
+                            {a.level === 'error' ? 'Chyba' : 'Varování'}
+                          </span>
+                          <span className="ml-2">{a.message}</span>
+                        </li>
+                      ))}
+                    </ul>
+                  ) : null}
+                </div>
+              ) : null}
            </div>
-          ) : (
-            <div className="grid gap-4 md:grid-cols-2 xl:grid-cols-4">
-              <PowerFlowCard label="FVE" powerW={site?.pv_power_w} icon={Sun} borderClass="border-l-amber-400" iconClass="text-amber-400" />
-              <PowerFlowCard
-                label="Baterie"
-                powerW={site?.battery_power_w}
-                icon={Battery}
-                borderClass={bat.border}
-                iconClass={bat.icon}
-              />
-              <SocGauge socPercent={site?.battery_soc_percent} loading={false} />
-              <PowerFlowCard label="Síť" powerW={site?.grid_power_w} icon={Zap} borderClass={grd.border} iconClass={grd.icon} />
-            </div>
-          )}
+          ) : metricsLoading ? (
+            <div className="mt-4 h-5 w-full max-w-md animate-pulse rounded bg-slate-800/80" />
+          ) : null}
        </section>

-        <section>
-          <SectionTitle kicker="Dnes" title="Průběh výkonů (hodinový průměr)" />
-          <TelemetryChart points={points} loading={chartSkeleton} />
+        {/* Graf + denní souhrn */}
+        <section className="grid grid-cols-1 gap-6 lg:grid-cols-3">
+          <div className="lg:col-span-2">
+            {chartLoading ? (
+              <BlockSkeleton className="h-[300px] w-full" />
+            ) : !hasChartData ? (
+              <div className="flex h-[300px] items-center justify-center rounded-xl border border-slate-800 bg-slate-900/40 text-sm text-slate-500">
+                Zatím žádná data pro dnešní den
+              </div>
+            ) : (
+              <div className="h-[300px] w-full rounded-xl border border-slate-800 bg-slate-900/40 p-2 pr-4 pb-4 pt-4">
+                <ResponsiveContainer width="100%" height="100%">
+                  <ComposedChart data={chartData} margin={{ top: 8, right: 8, left: 0, bottom: 0 }}>
+                    <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+                    <XAxis dataKey="timeLabel" tick={{ fill: '#94a3b8', fontSize: 11 }} />
+                    <YAxis tick={{ fill: '#94a3b8', fontSize: 11 }} width={40} />
+                    <Tooltip content={<ChartTooltip />} />
+                    <Area
+                      type="monotone"
+                      dataKey="pv_kw"
+                      name="FVE"
+                      stroke="#fbbf24"
+                      fill="#fbbf24"
+                      fillOpacity={0.25}
+                      connectNulls
+                    />
+                    <Line
+                      type="monotone"
+                      dataKey="load_kw"
+                      name="Spotřeba"
+                      stroke="#60a5fa"
+                      strokeWidth={2}
+                      dot={false}
+                      connectNulls
+                    />
+                    <Bar dataKey="battery_kw" name="Baterie" barSize={14}>
+                      {chartData.map((e, i) => (
+                        <Cell
+                          key={`c-${i}`}
+                          fill={
+                            e.battery_kw == null || Number.isNaN(e.battery_kw)
+                              ? '#475569'
+                              : e.battery_kw >= 0
+                                ? '#22c55e'
+                                : '#f97316'
+                          }
+                        />
+                      ))}
+                    </Bar>
+                    <Line
+                      type="monotone"
+                      dataKey="grid_kw"
+                      name="Síť"
+                      stroke="#94a3b8"
+                      strokeWidth={2}
+                      strokeDasharray="6 4"
+                      dot={false}
+                      connectNulls
+                    />
+                  </ComposedChart>
+                </ResponsiveContainer>
+              </div>
+            )}
+          </div>
+
+          <div className="lg:col-span-1">
+            {summaryLoading ? (
+              <div className="space-y-3">
+                <BlockSkeleton className="h-10 w-full" />
+                <BlockSkeleton className="h-10 w-full" />
+                <BlockSkeleton className="h-10 w-full" />
+                <BlockSkeleton className="h-10 w-full" />
+                <BlockSkeleton className="h-40 w-full" />
+              </div>
+            ) : (
+              <div className="rounded-xl border border-slate-800 bg-slate-900/50 p-5">
+                <h2 className="text-sm font-semibold uppercase tracking-wide text-slate-500">Dnešní souhrn</h2>
+                <ul className="mt-4 space-y-3 text-sm">
+                  <li className="flex justify-between gap-2">
+                    <span className="text-slate-400">FVE výroba</span>
+                    <span className="tabular-nums text-amber-200">{fmtEnergy(daily?.pv_kwh)}</span>
+                  </li>
+                  <li className="flex justify-between gap-2">
+                    <span className="text-slate-400">Import ze sítě</span>
+                    <span className="tabular-nums text-red-300">{fmtEnergy(daily?.import_kwh)}</span>
+                  </li>
+                  <li className="flex justify-between gap-2">
+                    <span className="text-slate-400">Export do sítě</span>
+                    <span className="tabular-nums text-emerald-300">{fmtEnergy(daily?.export_kwh)}</span>
+                  </li>
+                  <li className="flex justify-between gap-2">
+                    <span className="text-slate-400">Náklady / příjem</span>
+                    {(() => {
+                      const c = parseNum(daily?.actual_cost_czk)
+                      const cls =
+                        c == null
+                          ? 'text-slate-200'
+                          : c > 0
+                            ? 'text-red-400'
+                            : c < 0
+                              ? 'text-emerald-400'
+                              : 'text-slate-200'
+                      return <span className={`tabular-nums font-medium ${cls}`}>{fmtMoney(daily?.actual_cost_czk)}</span>
+                    })()}
+                  </li>
+                </ul>
+                {!hasDaily ? (
+                  <p className="mt-3 text-xs text-slate-500">Pro dnešek zatím nejsou uzavřené intervaly auditu.</p>
+                ) : null}
+                <SemicircleSocGauge socPercent={site?.battery_soc_percent} />
+              </div>
+            )}
+          </div>
        </section>

+        {/* Plán 4 h */}
        <section>
-          <SectionTitle kicker="Dnes" title="Ekonomika auditu" />
-          {econSkeleton ? (
-            <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-4">
-              <StatSkeleton />
-              <StatSkeleton />
-              <StatSkeleton />
-              <StatSkeleton />
-            </div>
+          <h2 className="mb-3 text-sm font-semibold uppercase tracking-wide text-slate-500">
+            Nejbližší plán (4 hodiny)
+          </h2>
+          {planLoading ? (
+            <BlockSkeleton className="h-16 w-full" />
+          ) : planSlots.length === 0 ? (
+            <p className="text-sm text-slate-500">Plán zatím není k dispozici</p>
          ) : (
-            <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-4">
-              <StatBlock label="Import" value={fmtEnergy(daily?.import_kwh)} />
-              <StatBlock label="Export" value={fmtEnergy(daily?.export_kwh)} />
-              <StatBlock label="FVE výroba" value={fmtEnergy(daily?.pv_kwh)} />
-              <StatBlock label="Náklady / příjem (audit)" value={fmtMoney(daily?.actual_cost_czk)} />
+            <div className="rounded-xl border border-slate-800 bg-slate-900/50 p-4">
+              <div className="flex gap-1">
+                {planSlots.map((slot, i) => (
+                  <div key={`${slot.interval_start}-${i}`} className="min-w-0 flex-1 group relative">
+                    <div
+                      className={`h-10 w-full rounded-sm ${slotBgClass(slot, avgBuy)} opacity-90 transition group-hover:opacity-100`}
+                      title=""
+                    />
+                    <div className="pointer-events-none absolute bottom-full left-1/2 z-10 mb-2 hidden w-max min-w-[140px] -translate-x-1/2 rounded-md border border-slate-600 bg-slate-900 px-2 py-1.5 text-[10px] text-slate-100 shadow-lg group-hover:block">
+                      <p className="font-medium text-slate-200">{formatSlotLabel(slot.interval_start)}</p>
+                      <p className="tabular-nums text-slate-400">
+                        cena:{' '}
+                        {slot.effective_buy_price == null
+                          ? '—'
+                          : `${slot.effective_buy_price.toFixed(3)} Kč/kWh`}
+                      </p>
+                      <p className="tabular-nums text-slate-400">
+                        baterie: {fmtKw2(slot.battery_setpoint_w ?? undefined)}
+                      </p>
+                      <p className="tabular-nums text-slate-400">síť: {fmtKw2(slot.grid_setpoint_w ?? undefined)}</p>
+                    </div>
+                  </div>
+                ))}
+              </div>
+              <p className="mt-2 text-center text-[10px] text-slate-600">16× 15 min · najet myší pro detail</p>
            </div>
          )}
        </section>
--- a/frontend/src/pages/Planning.tsx
+++ b/frontend/src/pages/Planning.tsx
@@ -0,0 +1,687 @@
+import axios from 'axios'
+import {
+  ArrowDownRight,
+  ArrowUpRight,
+  CloudSun,
+  Loader2,
+  RefreshCw,
+  Sparkles,
+  Upload,
+} from 'lucide-react'
+import { toast } from 'sonner'
+import { useCallback, useEffect, useMemo, useState } from 'react'
+import {
+  Area,
+  Bar,
+  CartesianGrid,
+  Cell,
+  ComposedChart,
+  Line,
+  ResponsiveContainer,
+  Tooltip,
+  XAxis,
+  YAxis,
+} from 'recharts'
+
+import { getCurrentPlan, postImportSitePrices, postRunForecast, postRunPlan } from '../api/backend'
+import { useSiteStatus } from '../hooks/useSiteStatus'
+import type { CurrentPlanResponse, PlanningIntervalDto } from '../types/plan'
+
+const TZ = 'Europe/Prague'
+
+function formatLocal(iso: string): string {
+  return new Date(iso).toLocaleString('cs-CZ', {
+    timeZone: TZ,
+    day: '2-digit',
+    month: '2-digit',
+    year: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  })
+}
+
+function formatLocalTime(iso: string): string {
+  return new Date(iso).toLocaleTimeString('cs-CZ', {
+    timeZone: TZ,
+    hour: '2-digit',
+    minute: '2-digit',
+  })
+}
+
+function slotStartUtcMs(iso: string): number {
+  return new Date(iso).getTime()
+}
+
+/**
+ * Vizuál FVE: API posílá součet A+B (`pv_forecast_total_w`).
+ * Pokud je hodnota null (data chybí), použijeme jednoduchou proxy z ceny nákupu (W).
+ * Čistá nula = platná předpověď „bez výroby“ (např. noc).
+ */
+function pvAProxyW(i: PlanningIntervalDto): number {
+  const pv = i.pv_forecast_total_w
+  if (pv != null && pv > 0) return pv
+  if (pv === 0) return 0
+  const buy = i.effective_buy_price
+  if (buy == null) return 0
+  const w = 6000 - buy * 3500
+  return Math.max(0, Math.min(15000, w))
+}
+
+function runTypeBadgeClass(t: string): string {
+  const u = t.toLowerCase()
+  if (u === 'daily') return 'bg-sky-500/15 text-sky-300 ring-1 ring-sky-500/35'
+  if (u === 'rolling') return 'bg-violet-500/15 text-violet-300 ring-1 ring-violet-500/35'
+  if (u === 'manual') return 'bg-amber-500/15 text-amber-200 ring-1 ring-amber-500/35'
+  return 'bg-slate-600/40 text-slate-300 ring-1 ring-slate-500/30'
+}
+
+function axiosDetail(e: unknown): string {
+  if (axios.isAxiosError(e)) {
+    const d = e.response?.data as { detail?: unknown } | undefined
+    const detail = d?.detail
+    if (typeof detail === 'string') return detail
+    if (Array.isArray(detail)) {
+      return detail
+        .map((x: { msg?: string }) => (typeof x?.msg === 'string' ? x.msg : ''))
+        .filter(Boolean)
+        .join(', ')
+    }
+  }
+  return e instanceof Error ? e.message : 'Neznámá chyba'
+}
+
+function tableRowClass(
+  i: PlanningIntervalDto,
+  selected: boolean,
+): string {
+  const parts: string[] = []
+  if (selected) parts.push('ring-1 ring-inset ring-cyan-500/50 bg-cyan-950/25')
+  const buy = i.effective_buy_price
+  const sell = i.effective_sell_price
+  if (buy != null && buy < 0) parts.push('bg-green-950/80')
+  else if (sell != null && sell < 0) parts.push('bg-red-950/80')
+  if ((i.pv_a_curtailed_w ?? 0) > 0) parts.push('border-l-4 border-l-yellow-500')
+  return parts.join(' ')
+}
+
+type ChartRow = {
+  label: string
+  ts: number
+  pv_a_w: number
+  battery_soc_target_pct: number | null
+  battery_setpoint_w: number
+  effective_buy_price: number | null
+  raw: PlanningIntervalDto
+}
+
+type PlanPrepActionsProps = {
+  prepAction: null | 'import' | 'forecast' | 'init'
+  replanning: boolean
+  onImport: () => void
+  onForecast: () => void
+  onInit: () => void
+  wrapClassName?: string
+}
+
+function PlanPrepActions({
+  prepAction,
+  replanning,
+  onImport,
+  onForecast,
+  onInit,
+  wrapClassName = 'flex flex-wrap gap-2',
+}: PlanPrepActionsProps) {
+  const prepBusy = prepAction !== null
+  const dis = prepBusy || replanning
+  return (
+    <div className={wrapClassName}>
+      <button
+        type="button"
+        onClick={onImport}
+        disabled={dis}
+        className="inline-flex items-center justify-center gap-2 rounded-lg border border-slate-600 bg-slate-800/90 px-3 py-2 text-sm font-medium text-slate-100 transition hover:bg-slate-700 disabled:opacity-50"
+      >
+        {prepAction === 'import' ? (
+          <Loader2 className="h-4 w-4 animate-spin" />
+        ) : (
+          <Upload className="h-4 w-4" />
+        )}
+        Importovat ceny
+      </button>
+      <button
+        type="button"
+        onClick={onForecast}
+        disabled={dis}
+        className="inline-flex items-center justify-center gap-2 rounded-lg border border-slate-600 bg-slate-800/90 px-3 py-2 text-sm font-medium text-slate-100 transition hover:bg-slate-700 disabled:opacity-50"
+      >
+        {prepAction === 'forecast' ? (
+          <Loader2 className="h-4 w-4 animate-spin" />
+        ) : (
+          <CloudSun className="h-4 w-4" />
+        )}
+        Spustit forecast
+      </button>
+      <button
+        type="button"
+        onClick={onInit}
+        disabled={dis}
+        className="inline-flex items-center justify-center gap-2 rounded-lg border border-emerald-700/60 bg-emerald-900/40 px-3 py-2 text-sm font-medium text-emerald-100 transition hover:bg-emerald-800/50 disabled:opacity-50"
+      >
+        {prepAction === 'init' ? (
+          <Loader2 className="h-4 w-4 animate-spin" />
+        ) : (
+          <Sparkles className="h-4 w-4" />
+        )}
+        Inicializovat plán
+      </button>
+    </div>
+  )
+}
+
+function PlanTooltip({ active, payload }: { active?: boolean; payload?: Array<{ payload: ChartRow }> }) {
+  if (!active || !payload?.length) return null
+  const p = payload[0].payload
+  const i = p.raw
+  const buy = i.effective_buy_price
+  const sell = i.effective_sell_price
+  return (
+    <div className="rounded-lg border border-slate-600 bg-slate-950 px-3 py-2 text-xs text-slate-200 shadow-xl">
+      <div className="mb-1 font-medium text-slate-100">{formatLocal(i.interval_start)}</div>
+      <div className="space-y-0.5 font-mono tabular-nums">
+        <div>
+          Cena nákup: {buy != null ? `${buy.toFixed(3)} Kč/kWh` : '—'} · prodej:{' '}
+          {sell != null ? `${sell.toFixed(3)} Kč/kWh` : '—'}
+        </div>
+        <div>Baterie: {i.battery_setpoint_w ?? '—'} W</div>
+        <div>Síť: {i.grid_setpoint_w ?? '—'} W</div>
+        <div>TČ: {i.heat_pump_enabled ? 'zapnuto' : 'vypnuto'}</div>
+        <div>
+          EV1: {i.ev1_setpoint_w ?? '—'} W · EV2: {i.ev2_setpoint_w ?? '—'} W
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default function Planning() {
+  const { site, ready: siteReady } = useSiteStatus()
+  const siteId = site?.site_id ?? null
+
+  const [data, setData] = useState<CurrentPlanResponse | null>(null)
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState<string | null>(null)
+  const [replanning, setReplanning] = useState(false)
+  const [prepAction, setPrepAction] = useState<null | 'import' | 'forecast' | 'init'>(null)
+  const [selectedStart, setSelectedStart] = useState<string | null>(null)
+
+  const load = useCallback(async () => {
+    if (siteId == null) return
+    setLoading(true)
+    setError(null)
+    try {
+      const res = await getCurrentPlan(siteId)
+      setData(res)
+    } catch (e) {
+      if (axios.isAxiosError(e) && e.response?.status === 404) {
+        setData({ run: null, intervals: [], summary: null })
+        setError(null)
+      } else {
+        setError(e instanceof Error ? e.message : 'Chyba načtení plánu')
+        setData(null)
+      }
+    } finally {
+      setLoading(false)
+    }
+  }, [siteId])
+
+  useEffect(() => {
+    if (siteId != null) void load()
+  }, [siteId, load])
+
+  const nowMs = Date.now()
+  const dayMs = 24 * 60 * 60 * 1000
+
+  const intervals24h = useMemo(() => {
+    if (!data?.intervals?.length) return []
+    const end = nowMs + dayMs
+    return data.intervals
+      .filter((i) => {
+        const t = slotStartUtcMs(i.interval_start)
+        return t >= nowMs && t < end
+      })
+      .slice(0, 96)
+  }, [data?.intervals, nowMs])
+
+  const xTicks = useMemo(() => {
+    if (!intervals24h.length) return undefined
+    const stepMs = 2 * 60 * 60 * 1000
+    const first = slotStartUtcMs(intervals24h[0].interval_start)
+    const last = slotStartUtcMs(intervals24h[intervals24h.length - 1].interval_start)
+    const ticks: string[] = []
+    let t = Math.ceil(first / stepMs) * stepMs
+    while (t <= last) {
+      const hit = intervals24h.find((i) => Math.abs(slotStartUtcMs(i.interval_start) - t) < 30 * 60 * 1000)
+      if (hit) ticks.push(hit.interval_start)
+      t += stepMs
+    }
+    return ticks.length ? ticks.map((iso) => formatLocalTime(iso)) : undefined
+  }, [intervals24h])
+
+  const chartRows: ChartRow[] = useMemo(() => {
+    return intervals24h.map((i) => ({
+      label: formatLocalTime(i.interval_start),
+      ts: slotStartUtcMs(i.interval_start),
+      pv_a_w: pvAProxyW(i),
+      battery_soc_target_pct: i.battery_soc_target_pct,
+      battery_setpoint_w: i.battery_setpoint_w ?? 0,
+      effective_buy_price: i.effective_buy_price,
+      raw: i,
+    }))
+  }, [intervals24h])
+
+  async function onReplan() {
+    if (siteId == null) return
+    setReplanning(true)
+    setError(null)
+    try {
+      await postRunPlan(siteId, 'rolling')
+      await load()
+    } catch (e) {
+      setError(e instanceof Error ? e.message : 'Přepočet selhal')
+    } finally {
+      setReplanning(false)
+    }
+  }
+
+  async function runRollingReload() {
+    if (siteId == null) return
+    await postRunPlan(siteId, 'rolling')
+    await load()
+  }
+
+  async function handleImportPrices() {
+    if (siteId == null) return
+    setPrepAction('import')
+    setError(null)
+    try {
+      const r = await postImportSitePrices(siteId)
+      toast.success(
+        `Ceny: ${r.slots_imported} slotů (${r.date}), první ${r.first_price_czk_kwh.toFixed(3)} Kč/kWh`,
+      )
+      await runRollingReload()
+    } catch (e) {
+      toast.error('Import cen selhal', { description: axiosDetail(e) })
+    } finally {
+      setPrepAction(null)
+    }
+  }
+
+  async function handleRunForecast() {
+    if (siteId == null) return
+    setPrepAction('forecast')
+    setError(null)
+    try {
+      const r = await postRunForecast(siteId)
+      toast.success(`Forecast: ${r.intervals_saved} intervalů, ${r.pv_arrays} FVE polí`)
+      await runRollingReload()
+    } catch (e) {
+      toast.error('Forecast selhal', { description: axiosDetail(e) })
+    } finally {
+      setPrepAction(null)
+    }
+  }
+
+  async function handleInitializePlan() {
+    if (siteId == null) return
+    setPrepAction('init')
+    setError(null)
+    try {
+      const imp = await postImportSitePrices(siteId)
+      toast.success(
+        `Ceny: ${imp.slots_imported} slotů (${imp.date}), první ${imp.first_price_czk_kwh.toFixed(3)} Kč/kWh`,
+      )
+      const fc = await postRunForecast(siteId)
+      toast.success(`Forecast: ${fc.intervals_saved} intervalů, ${fc.pv_arrays} FVE polí`)
+      await runRollingReload()
+      toast.success('Plán přepočítán (rolling).')
+    } catch (e) {
+      toast.error('Inicializace selhala', { description: axiosDetail(e) })
+    } finally {
+      setPrepAction(null)
+    }
+  }
+
+  if (!siteReady) {
+    return (
+      <div className="flex min-h-[40vh] items-center justify-center text-slate-400">
+        Načítám lokalitu…
+      </div>
+    )
+  }
+
+  if (siteId == null) {
+    return (
+      <div className="rounded-lg border border-amber-900/50 bg-amber-950/20 p-4 text-amber-200">
+        V PostgREST nebyla nalezena lokalita (vw_site_status). Nelze načíst plán.
+      </div>
+    )
+  }
+
+  const run = data?.run
+  const summary = data?.summary
+
+  const planStale =
+    run != null && Date.now() - new Date(run.created_at).getTime() > 2 * 60 * 60 * 1000
+  const showPrepActions = !loading && (run == null || planStale)
+  const prepBusy = prepAction !== null
+
+  const correctionPct =
+    run?.forecast_correction_factor != null ? run.forecast_correction_factor * 100 : null
+  const correctionUp = (run?.forecast_correction_factor ?? 1) >= 1
+
+  return (
+    <div className="mx-auto max-w-6xl space-y-8 p-4 md:p-6">
+      <header className="space-y-1">
+        <h1 className="text-xl font-semibold tracking-tight text-white">Plánování</h1>
+        <p className="text-sm text-slate-400">
+          Aktuální LP plán a dalších 24 h od teď ({site?.site_name ?? 'lokalita'})
+        </p>
+      </header>
+
+      {error && (
+        <div className="rounded-md border border-red-900/60 bg-red-950/30 px-3 py-2 text-sm text-red-200">
+          {error}
+        </div>
+      )}
+
+      {/* Sekce 1 */}
+      <section className="rounded-xl border border-slate-800 bg-slate-900/40 p-4 shadow-lg">
+        <h2 className="mb-3 text-sm font-medium uppercase tracking-wide text-slate-400">
+          Status aktivního plánu
+        </h2>
+        {loading && !run ? (
+          <div className="flex items-center gap-2 text-slate-400">
+            <Loader2 className="h-4 w-4 animate-spin" /> Načítám…
+          </div>
+        ) : !run ? (
+          <div className="space-y-3">
+            <p className="text-slate-400">Žádný aktivní plán.</p>
+            {showPrepActions && (
+              <PlanPrepActions
+                prepAction={prepAction}
+                replanning={replanning}
+                onImport={() => void handleImportPrices()}
+                onForecast={() => void handleRunForecast()}
+                onInit={() => void handleInitializePlan()}
+              />
+            )}
+          </div>
+        ) : (
+          <div className="flex flex-col gap-4 md:flex-row md:items-start md:justify-between">
+            <div className="min-w-0 flex-1 space-y-3">
+              <div className="flex flex-wrap items-center gap-2 text-sm text-slate-200">
+                <span className="text-slate-500">Vytvořeno:</span>
+                <span className="font-mono">{formatLocal(run.created_at)}</span>
+                <span className="text-slate-600">|</span>
+                <span className="text-slate-500">Typ:</span>
+                <span
+                  className={`rounded-md px-2 py-0.5 text-xs font-semibold uppercase tracking-wide ${runTypeBadgeClass(run.run_type)}`}
+                >
+                  {run.run_type}
+                </span>
+              </div>
+              <div className="text-sm">
+                <span className="text-slate-500">Horizont: </span>
+                <span className="font-mono text-slate-200">
+                  {formatLocal(run.horizon_start)} → {formatLocal(run.horizon_end)}
+                </span>
+              </div>
+              <div className="flex flex-wrap items-center gap-2 text-sm">
+                <span className="text-slate-500">Korekce FVE forecastu:</span>
+                <span className="inline-flex items-center gap-1 font-mono text-slate-200">
+                  {correctionPct != null ? (
+                    <>
+                      {correctionUp ? (
+                        <ArrowUpRight className="h-4 w-4 text-emerald-400" aria-hidden />
+                      ) : (
+                        <ArrowDownRight className="h-4 w-4 text-amber-400" aria-hidden />
+                      )}
+                      {Number.isInteger(correctionPct)
+                        ? correctionPct
+                        : correctionPct.toLocaleString('cs-CZ', { maximumFractionDigits: 1 })}{' '}
+                      %
+                    </>
+                  ) : (
+                    '—'
+                  )}
+                </span>
+              </div>
+              <div className="text-sm">
+                <span className="text-slate-500">Čas výpočtu solveru: </span>
+                <span className="font-mono text-slate-200">
+                  {run.solver_duration_ms != null ? `${run.solver_duration_ms} ms` : '—'}
+                </span>
+              </div>
+              {summary && (
+                <div className="border-t border-slate-800 pt-3 text-sm">
+                  <p className="mb-2 text-slate-500">Summary</p>
+                  <dl className="grid grid-cols-1 gap-2 sm:grid-cols-2 lg:grid-cols-3">
+                    <div>
+                      <dt className="text-xs text-slate-500">
+                        {summary.total_expected_cost_czk >= 0 ? 'Celkové náklady' : 'Celkový příjem'}
+                      </dt>
+                      <dd className="font-mono text-slate-100">
+                        {summary.total_expected_cost_czk >= 0
+                          ? `${summary.total_expected_cost_czk.toFixed(2)} Kč`
+                          : `${Math.abs(summary.total_expected_cost_czk).toFixed(2)} Kč`}
+                      </dd>
+                    </div>
+                    <div>
+                      <dt className="text-xs text-slate-500">kWh curtailmentu (A)</dt>
+                      <dd className="font-mono text-slate-100">
+                        {summary.total_pv_curtailed_kwh.toLocaleString('cs-CZ', {
+                          minimumFractionDigits: 3,
+                          maximumFractionDigits: 3,
+                        })}{' '}
+                        kWh
+                      </dd>
+                    </div>
+                    <div>
+                      <dt className="text-xs text-slate-500">Sloty nabíjení / vybíjení / export</dt>
+                      <dd className="font-mono text-slate-100">
+                        {summary.charge_slots} / {summary.discharge_slots} / {summary.export_slots}
+                      </dd>
+                    </div>
+                  </dl>
+                </div>
+              )}
+            </div>
+            <div className="flex shrink-0 flex-col items-stretch gap-2 sm:items-end">
+              {showPrepActions && (
+                <PlanPrepActions
+                  prepAction={prepAction}
+                  replanning={replanning}
+                  onImport={() => void handleImportPrices()}
+                  onForecast={() => void handleRunForecast()}
+                  onInit={() => void handleInitializePlan()}
+                  wrapClassName="flex flex-wrap justify-end gap-2"
+                />
+              )}
+              <button
+                type="button"
+                onClick={() => void onReplan()}
+                disabled={replanning || prepBusy}
+                className="inline-flex items-center justify-center gap-2 rounded-lg bg-emerald-600 px-4 py-2 text-sm font-medium text-white transition hover:bg-emerald-500 disabled:opacity-50"
+              >
+                {replanning ? <Loader2 className="h-4 w-4 animate-spin" /> : <RefreshCw className="h-4 w-4" />}
+                Přeplánovat
+              </button>
+            </div>
+          </div>
+        )}
+      </section>
+
+      {/* Sekce 2 */}
+      <section className="rounded-xl border border-slate-800 bg-slate-900/40 p-4 shadow-lg">
+        <h2 className="mb-3 text-sm font-medium uppercase tracking-wide text-slate-400">Graf plánu</h2>
+        {!chartRows.length ? (
+          <p className="text-sm text-slate-500">Žádná data pro graf (24 h od teď, max. 96 slotů).</p>
+        ) : (
+          <div className="h-[350px] w-full">
+            <ResponsiveContainer width="100%" height="100%">
+              <ComposedChart data={chartRows} margin={{ top: 8, right: 72, left: 8, bottom: 4 }}>
+                <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+                <XAxis
+                  dataKey="label"
+                  ticks={xTicks}
+                  tick={{ fill: '#94a3b8', fontSize: 10 }}
+                  interval={0}
+                  angle={-35}
+                  textAnchor="end"
+                  height={48}
+                />
+                <YAxis
+                  yAxisId="power"
+                  tick={{ fill: '#94a3b8', fontSize: 10 }}
+                  label={{ value: 'W', angle: -90, position: 'insideLeft', fill: '#64748b', fontSize: 11 }}
+                />
+                <YAxis
+                  yAxisId="soc"
+                  orientation="right"
+                  domain={[0, 100]}
+                  tick={{ fill: '#22c55e', fontSize: 10 }}
+                  label={{ value: 'SoC %', angle: 90, position: 'insideRight', fill: '#22c55e', fontSize: 11 }}
+                />
+                <YAxis
+                  yAxisId="price"
+                  orientation="right"
+                  width={52}
+                  tick={{ fill: '#94a3b8', fontSize: 9 }}
+                  axisLine={{ stroke: '#64748b' }}
+                  tickLine={{ stroke: '#64748b' }}
+                  label={{
+                    value: 'Kč/kWh',
+                    angle: 90,
+                    position: 'insideRight',
+                    fill: '#94a3b8',
+                    fontSize: 10,
+                    offset: 10,
+                  }}
+                />
+                <Tooltip content={<PlanTooltip />} />
+                <Area
+                  yAxisId="power"
+                  type="monotone"
+                  dataKey="pv_a_w"
+                  name="FVE (A) / předpověď"
+                  stroke="#ca8a04"
+                  fill="#eab308"
+                  fillOpacity={0.35}
+                />
+                <Bar yAxisId="power" dataKey="battery_setpoint_w" name="Baterie W" barSize={10} isAnimationActive={false}>
+                  {chartRows.map((e) => (
+                    <Cell
+                      key={e.ts}
+                      fill={e.battery_setpoint_w >= 0 ? '#22c55e' : '#f97316'}
+                      fillOpacity={0.85}
+                    />
+                  ))}
+                </Bar>
+                <Line
+                  yAxisId="soc"
+                  type="monotone"
+                  dataKey="battery_soc_target_pct"
+                  name="SoC %"
+                  stroke="#4ade80"
+                  dot={false}
+                  strokeWidth={2}
+                  connectNulls
+                />
+                <Line
+                  yAxisId="price"
+                  type="monotone"
+                  dataKey="effective_buy_price"
+                  name="Cena nákup"
+                  stroke="#94a3b8"
+                  strokeDasharray="5 4"
+                  dot={false}
+                  strokeWidth={2}
+                  connectNulls
+                />
+              </ComposedChart>
+            </ResponsiveContainer>
+          </div>
+        )}
+      </section>
+
+      {/* Sekce 3 */}
+      <section className="rounded-xl border border-slate-800 bg-slate-900/40 p-4 shadow-lg">
+        <h2 className="mb-3 text-sm font-medium uppercase tracking-wide text-slate-400">Tabulka slotů</h2>
+        <div className="max-h-[400px] overflow-y-auto overflow-x-auto rounded-lg border border-slate-800/80">
+          <table className="w-full border-collapse text-left text-xs">
+            <thead className="sticky top-0 z-10 bg-slate-900 shadow-[0_1px_0_0_rgb(30_41_59)]">
+              <tr className="text-slate-500">
+                <th className="whitespace-nowrap py-2 pl-2 pr-2 font-medium">Čas</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">Cena kup</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">Cena prod</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">Bat. W</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">SoC %</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">Síť W</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">EV1 W</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">EV2 W</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">TČ</th>
+                <th className="whitespace-nowrap py-2 pr-2 font-medium">Náklady Kč</th>
+              </tr>
+            </thead>
+            <tbody>
+              {intervals24h.map((i) => {
+                const sel = selectedStart === i.interval_start
+                return (
+                  <tr
+                    key={i.interval_start}
+                    role="button"
+                    tabIndex={0}
+                    onClick={() => setSelectedStart((prev) => (prev === i.interval_start ? null : i.interval_start))}
+                    onKeyDown={(ev) => {
+                      if (ev.key === 'Enter' || ev.key === ' ') {
+                        ev.preventDefault()
+                        setSelectedStart((prev) => (prev === i.interval_start ? null : i.interval_start))
+                      }
+                    }}
+                    className={`cursor-pointer border-b border-slate-800/80 transition hover:bg-slate-800/40 ${tableRowClass(i, sel)}`}
+                  >
+                    <td className="whitespace-nowrap py-1.5 pl-2 pr-2 font-mono text-slate-300">
+                      {formatLocalTime(i.interval_start)}
+                    </td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">
+                      {i.effective_buy_price?.toFixed(3) ?? '—'}
+                    </td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">
+                      {i.effective_sell_price?.toFixed(3) ?? '—'}
+                    </td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">{i.battery_setpoint_w ?? '—'}</td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">
+                      {i.battery_soc_target_pct != null
+                        ? `${i.battery_soc_target_pct.toFixed(1)}`
+                        : '—'}
+                    </td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">{i.grid_setpoint_w ?? '—'}</td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">{i.ev1_setpoint_w ?? '—'}</td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">{i.ev2_setpoint_w ?? '—'}</td>
+                    <td className="pr-2 text-slate-300">{i.heat_pump_enabled ? 'on' : 'off'}</td>
+                    <td className="pr-2 font-mono tabular-nums text-slate-300">
+                      {i.expected_cost_czk?.toFixed(4) ?? '—'}
+                    </td>
+                  </tr>
+                )
+              })}
+            </tbody>
+          </table>
+        </div>
+        {!intervals24h.length && !loading && (
+          <p className="mt-2 text-sm text-slate-500">Žádné řádky v 24h okně.</p>
+        )}
+      </section>
+    </div>
+  )
+}
--- a/frontend/src/pages/Settings.tsx
+++ b/frontend/src/pages/Settings.tsx
@@ -1,5 +1,12 @@
+import axios from 'axios'
+import { Car } from 'lucide-react'
+import { useEffect, useState } from 'react'
+import { toast } from 'sonner'
+
+import { patchEvSession, type ActiveEvSessionRow } from '../api/backend'
 import { ModeLog } from '../components/ModeLog'
 import { ModeSelector } from '../components/ModeSelector'
+import { useEVSessions } from '../hooks/useEVSessions'
 import { useSiteStatus } from '../hooks/useSiteStatus'

 function SectionTitle({ kicker, title }: { kicker: string; title: string }) {
@@ -11,9 +18,182 @@ function SectionTitle({ kicker, title }: { kicker: string; title: string }) {
  )
 }

+function toDatetimeLocalValue(d: Date): string {
+  const y = d.getFullYear()
+  const m = String(d.getMonth() + 1).padStart(2, '0')
+  const day = String(d.getDate()).padStart(2, '0')
+  const h = String(d.getHours()).padStart(2, '0')
+  const min = String(d.getMinutes()).padStart(2, '0')
+  return `${y}-${m}-${day}T${h}:${min}`
+}
+
+/** Dnešní HH:00 nebo zítřejší, pokud už je po té hodině (včetně celé hodiny). */
+function nextDeadlineAtHour(hour: number): Date {
+  const now = new Date()
+  const d = new Date(now.getFullYear(), now.getMonth(), now.getDate(), hour, 0, 0, 0)
+  if (d.getTime() <= now.getTime()) {
+    d.setDate(d.getDate() + 1)
+  }
+  return d
+}
+
+function isoToDatetimeLocal(iso: string): string {
+  return toDatetimeLocalValue(new Date(iso))
+}
+
+function datetimeLocalToIsoUtc(local: string): string {
+  const d = new Date(local)
+  if (Number.isNaN(d.getTime())) {
+    return new Date().toISOString()
+  }
+  return d.toISOString()
+}
+
+function vehicleTitle(s: ActiveEvSessionRow): string {
+  const m = (s.make ?? '').trim()
+  const mo = (s.model ?? '').trim()
+  if (!m && !mo) return 'Neznámé vozidlo'
+  return `${m} ${mo}`.trim()
+}
+
+/** Popisek do toastu – preferuje model (např. Model Y). */
+function toastVehicleLabel(s: ActiveEvSessionRow): string {
+  const mo = (s.model ?? '').trim()
+  if (mo) return mo
+  return vehicleTitle(s)
+}
+
+const CHARGER_SLOTS: { code: string; label: string }[] = [
+  { code: 'ev-charger-1', label: 'Tesla' },
+  { code: 'ev-charger-2', label: 'Zoe' },
+]
+
+function EvChargerCard({
+  siteId,
+  chargerLabel,
+  session,
+  onSaved,
+}: {
+  siteId: number
+  chargerLabel: string
+  session: ActiveEvSessionRow | undefined
+  onSaved: () => void
+}) {
+  const [soc, setSoc] = useState<number | ''>('')
+  const [deadlineLocal, setDeadlineLocal] = useState('')
+  const [saving, setSaving] = useState(false)
+
+  useEffect(() => {
+    if (!session) {
+      setSoc('')
+      setDeadlineLocal('')
+      return
+    }
+    const defSoc = session.target_soc_pct ?? session.default_target_soc_pct ?? 80
+    setSoc(Math.round(Number(defSoc)))
+    if (session.target_deadline) {
+      setDeadlineLocal(isoToDatetimeLocal(session.target_deadline))
+    } else {
+      const h = session.default_deadline_hour ?? 7
+      setDeadlineLocal(toDatetimeLocalValue(nextDeadlineAtHour(h)))
+    }
+  }, [
+    session?.id,
+    session?.target_soc_pct,
+    session?.target_deadline,
+    session?.default_deadline_hour,
+    session?.default_target_soc_pct,
+  ])
+
+  if (!session) {
+    return (
+      <div className="flex flex-col items-center justify-center rounded-xl border border-slate-800 bg-slate-900/25 p-8 text-center">
+        <Car className="h-12 w-12 text-slate-600" aria-hidden />
+        <p className="mt-4 text-sm font-medium text-slate-500">Nepřipojeno</p>
+        <p className="mt-1 text-xs text-slate-600">{chargerLabel}</p>
+      </div>
+    )
+  }
+
+  const kwh = ((session.energy_delivered_wh ?? 0) / 1000).toFixed(1)
+
+  const onSubmit = async (e: React.FormEvent) => {
+    e.preventDefault()
+    if (soc === '' || !deadlineLocal) return
+    const clamped = Math.min(100, Math.max(10, Math.round(Number(soc))))
+    setSaving(true)
+    try {
+      await patchEvSession(siteId, session.id, {
+        target_soc_pct: clamped,
+        target_deadline: datetimeLocalToIsoUtc(deadlineLocal),
+      })
+      toast.success(`Deadline nastaven pro ${toastVehicleLabel(session)}`)
+      onSaved()
+    } catch (err) {
+      const msg =
+        axios.isAxiosError(err) && err.response?.data && typeof err.response.data === 'object'
+          ? JSON.stringify(err.response.data)
+          : err instanceof Error
+            ? err.message
+            : 'Neznámá chyba'
+      toast.error('Uložení se nezdařilo', { description: msg })
+    } finally {
+      setSaving(false)
+    }
+  }
+
+  return (
+    <div className="rounded-xl border border-slate-700 bg-slate-900/50 p-4">
+      <p className="text-xs font-medium uppercase tracking-wide text-emerald-500/90">Připojeno</p>
+      <p className="mt-1 text-sm font-semibold text-slate-100">{vehicleTitle(session)}</p>
+      <p className="mt-0.5 text-xs text-slate-500">{chargerLabel}</p>
+      <form onSubmit={(e) => void onSubmit(e)} className="mt-4 space-y-3">
+        <p className="text-sm text-slate-400">
+          Energie v session:{' '}
+          <span className="font-medium text-slate-200">{kwh} kWh</span>
+        </p>
+        <div className="flex flex-wrap gap-3">
+          <label className="flex flex-col text-xs text-slate-500">
+            Target SoC %
+            <input
+              type="number"
+              min={10}
+              max={100}
+              step={1}
+              value={soc}
+              onChange={(e) => {
+                const v = e.target.value
+                setSoc(v === '' ? '' : Number(v))
+              }}
+              className="mt-1 w-28 rounded-lg border border-slate-700 bg-slate-900 px-2 py-1.5 text-sm text-slate-200"
+            />
+          </label>
+          <label className="flex min-w-[200px] flex-col text-xs text-slate-500">
+            Deadline
+            <input
+              type="datetime-local"
+              value={deadlineLocal}
+              onChange={(e) => setDeadlineLocal(e.target.value)}
+              className="mt-1 rounded-lg border border-slate-700 bg-slate-900 px-2 py-1.5 text-sm text-slate-200"
+            />
+          </label>
+        </div>
+        <button
+          type="submit"
+          disabled={saving || soc === '' || !deadlineLocal}
+          className="rounded-lg bg-emerald-600 px-4 py-2 text-sm font-medium text-white hover:bg-emerald-500 disabled:cursor-not-allowed disabled:opacity-50"
+        >
+          {saving ? 'Ukládám…' : 'Uložit'}
+        </button>
+      </form>
+    </div>
+  )
+}
+
 export function Settings() {
  const { site, ready, reload } = useSiteStatus()
  const siteId = site?.site_id ?? null
+  const { sessions, ready: evReady, error: evError, reload: reloadEv } = useEVSessions(siteId)

  return (
    <div className="min-h-screen bg-slate-950 p-4 md:p-8">
@@ -31,7 +211,8 @@ export function Settings() {
        <section>
          <SectionTitle kicker="Řízení" title="Provozní režim" />
          <p className="mb-4 max-w-3xl text-sm text-slate-400">
-            Přepnutí zapíše stav do databáze a notifikuje Loxone. U dočasného režimu lze nastavit čas návratu; po vypršení systém obnoví předchozí režim.
+            Přepnutí zapíše stav do databáze a notifikuje Loxone. U dočasného režimu lze nastavit čas návratu; po
+            vypršení systém obnoví předchozí režim.
          </p>
          <ModeSelector
            siteId={siteId}
@@ -45,52 +226,31 @@ export function Settings() {
        </section>

        <section>
-          <SectionTitle kicker="EV" title="Deadline nabíjení (připravuje se)" />
-          <p className="mb-4 text-sm text-slate-500">
-            Zatím pouze rozhraní; napojení na API a session přijde v další iteraci.
+          <SectionTitle kicker="EV" title="Deadline nabíjení" />
+          <p className="mb-4 max-w-3xl text-sm text-slate-400">
+            Při připojení vozidla na wallbox se zobrazí aktivní session (dotaz každých 30 s). Cílový SoC a deadline se
+            ukládají do <span className="text-slate-500">ev_session</span> pro plánovač.
          </p>
-          <div className="grid gap-4 md:grid-cols-2">
-            <div className="rounded-xl border border-slate-800 bg-slate-900/40 p-4">
-              <p className="text-sm font-medium text-slate-200">Tesla</p>
-              <div className="mt-3 flex flex-wrap gap-3">
-                <label className="flex flex-col text-xs text-slate-500">
-                  Cílové SoC %
-                  <input
-                    type="number"
-                    min={0}
-                    max={100}
-                    placeholder="např. 80"
-                    disabled
-                    className="mt-1 w-28 rounded-lg border border-slate-700 bg-slate-900 px-2 py-1.5 text-sm text-slate-400"
+          {siteId === null ? (
+            <p className="text-sm text-slate-500">Načítám lokalitu…</p>
+          ) : !evReady ? (
+            <p className="text-sm text-slate-500">Načítám EV session…</p>
+          ) : (
+            <>
+              {evError ? <p className="mb-3 text-sm text-amber-600/90">{evError}</p> : null}
+              <div className="grid gap-4 md:grid-cols-2">
+                {CHARGER_SLOTS.map((slot) => (
+                  <EvChargerCard
+                    key={slot.code}
+                    siteId={siteId}
+                    chargerLabel={slot.label}
+                    session={sessions.find((s) => s.charger_code === slot.code)}
+                    onSaved={() => void reloadEv()}
                  />
-                </label>
-                <label className="flex min-w-[200px] flex-col text-xs text-slate-500">
-                  Deadline
-                  <input type="datetime-local" disabled className="mt-1 rounded-lg border border-slate-700 bg-slate-900 px-2 py-1.5 text-sm text-slate-400" />
-                </label>
+                ))}
              </div>
-            </div>
-            <div className="rounded-xl border border-slate-800 bg-slate-900/40 p-4">
-              <p className="text-sm font-medium text-slate-200">Zoe</p>
-              <div className="mt-3 flex flex-wrap gap-3">
-                <label className="flex flex-col text-xs text-slate-500">
-                  Cílové SoC %
-                  <input
-                    type="number"
-                    min={0}
-                    max={100}
-                    placeholder="např. 80"
-                    disabled
-                    className="mt-1 w-28 rounded-lg border border-slate-700 bg-slate-900 px-2 py-1.5 text-sm text-slate-400"
-                  />
-                </label>
-                <label className="flex min-w-[200px] flex-col text-xs text-slate-500">
-                  Deadline
-                  <input type="datetime-local" disabled className="mt-1 rounded-lg border border-slate-700 bg-slate-900 px-2 py-1.5 text-sm text-slate-400" />
-                </label>
-              </div>
-            </div>
-          </div>
+            </>
+          )}
        </section>
      </div>
    </div>