ShineBridge v1.10.2 — Diagnose: Env-Var-Dump wenn SUPERVISOR_TOKEN fehlt

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

haos-addon/config.yaml

@@ -1,5 +1,5 @@
 name: ShineBridge
-version: "1.9.2"
+version: "1.10.2"
 slug: shinebridge
 description: Energiemanagement für Growatt/Goodwe-Wechselrichter — PV-Überschussladen, Wallbox-EMS, Tarifvergleich, Zigbee2MQTT-Überschussgeräte
 url: https://gitea.bitfire.work/retr0/shinebridge
@@ -13,6 +13,7 @@ host_network: true
 ingress: true
 ingress_port: 8099
 panel_icon: mdi:solar-power
+homeassistant_api: true
 options:
   mqtt_broker: "core-mosquitto"
   mqtt_port: 1883

haos-addon/src/ha_entity_client.py

@@ -0,0 +1,76 @@
+import json
+import logging
+import os
+import urllib.error
+import urllib.request
+from typing import Dict, Optional
+
+log = logging.getLogger(__name__)
+
+# Suffix am ESPHome-Entity-Namen -> ShineBridge-interner Sensor-Id.
+# Passt zur esphome-growatt-Komponente (siehe growatt-diagnose-tool/ShineWifi-X) —
+# Entity-Id ergibt sich als sensor.<prefix>_<suffix>, z.B. sensor.growatt_wifi_x_1_dcpower.
+ENTITY_SUFFIX_MAP = {
+    "pv_voltage":     "dcvoltage",
+    "pv_current":     "dcinputcurrent",
+    "pv_power":       "dcpower",
+    "grid_frequency": "acfrequency",
+    "grid_voltage":   "acvoltage",
+    "grid_current":   "acoutputcurrent",
+    "ac_power":       "acpower",
+    "energy_today":   "energytoday",
+    "energy_total":   "energytotal",
+    "inverter_temp":  "temperature",
+}
+
+
+class HAEntityReader:
+    """Liest Wechselrichter-Werte aus bereits bestehenden Home-Assistant-Entities
+    (z.B. ein per ESPHome direkt in HA eingebundener ShineWifi-X-Stick) statt sie
+    selbst per Modbus/UDP zu pollen.
+
+    Braucht 'homeassistant_api: true' in config.yaml — HAOS injiziert dann
+    SUPERVISOR_TOKEN und die interne API ist unter http://supervisor/core/api
+    erreichbar (kein manuell erstelltes Long-Lived Token nötig)."""
+
+    BASE_URL = "http://supervisor/core/api"
+
+    def __init__(self, entity_prefix: str):
+        self.entity_prefix = entity_prefix
+        self.token = os.environ.get("SUPERVISOR_TOKEN", "")
+        if not self.token:
+            related = [k for k in os.environ if "TOKEN" in k.upper() or "SUPERVISOR" in k.upper() or "HASSIO" in k.upper()]
+            log.warning("[HA-Entity] SUPERVISOR_TOKEN nicht gesetzt. Verwandte Env-Vars gefunden: %s", related or "keine")
+
+    def read(self, inverter=None) -> Optional[Dict[str, float]]:
+        if not self.entity_prefix:
+            log.error("[HA-Entity] Kein Entity-Prefix konfiguriert")
+            return None
+        if not self.token:
+            log.error("[HA-Entity %s] Kein SUPERVISOR_TOKEN — 'homeassistant_api: true' in config.yaml gesetzt und Add-on neu installiert?", self.entity_prefix)
+            return None
+
+        result: Dict[str, float] = {}
+        any_ok = False
+        for sensor_id, suffix in ENTITY_SUFFIX_MAP.items():
+            val = self._get_state(f"sensor.{self.entity_prefix}_{suffix}")
+            if val is not None:
+                result[sensor_id] = val
+                any_ok = True
+        return result if any_ok else None
+
+    def _get_state(self, entity_id: str) -> Optional[float]:
+        req = urllib.request.Request(
+            f"{self.BASE_URL}/states/{entity_id}",
+            headers={"Authorization": f"Bearer {self.token}"},
+        )
+        try:
+            with urllib.request.urlopen(req, timeout=5) as r:
+                data = json.loads(r.read())
+                return round(float(data["state"]), 3)
+        except (urllib.error.HTTPError, urllib.error.URLError, ValueError, KeyError) as e:
+            log.debug("[HA-Entity] %s nicht lesbar: %s", entity_id, e)
+            return None
+
+    def close(self):
+        pass

haos-addon/src/inverters.py

@@ -197,6 +197,23 @@ def _kathrein_sensors() -> List[Sensor]:
     ]
 
 
+def _wifi_x_sensors() -> List[Sensor]:
+    # reg/count/scale/data_type ungenutzt bei protocol="ha_entity" — Werte kommen
+    # fertig geparst von HAEntityReader, hier nur Metadaten fuer MQTT-Discovery.
+    return [
+        Sensor("pv_voltage",     "PV Spannung",          0, 1, 1.0, "V",   "voltage",     "measurement",      "mdi:solar-panel"),
+        Sensor("pv_current",     "PV Strom",             0, 1, 1.0, "A",   "current",     "measurement",      "mdi:solar-panel"),
+        Sensor("pv_power",       "PV Leistung",          0, 1, 1.0, "W",   "power",       "measurement",      "mdi:solar-panel"),
+        Sensor("grid_frequency", "Netz-Frequenz",        0, 1, 1.0, "Hz",  "frequency",   "measurement",      "mdi:sine-wave"),
+        Sensor("grid_voltage",   "Netz-Spannung",        0, 1, 1.0, "V",   "voltage",     "measurement",      "mdi:flash"),
+        Sensor("grid_current",   "Netz-Strom",           0, 1, 1.0, "A",   "current",     "measurement",      "mdi:flash"),
+        Sensor("ac_power",       "AC Ausgangsleistung",  0, 1, 1.0, "W",   "power",       "measurement",      "mdi:flash"),
+        Sensor("energy_today",   "Energie Heute",        0, 1, 1.0, "kWh", "energy",      "total_increasing", "mdi:solar-power"),
+        Sensor("energy_total",   "Energie Gesamt",       0, 1, 1.0, "kWh", "energy",      "total_increasing", "mdi:solar-power"),
+        Sensor("inverter_temp",  "Wechselrichter Temp.", 0, 1, 1.0, "°C",  "temperature", "measurement",      "mdi:thermometer"),
+    ]
+
+
 INVERTERS = {
     "MIC_1500_TL_X": Inverter(
         id="MIC_1500_TL_X",
@@ -253,4 +270,13 @@ INVERTERS = {
         protocol="kathrein",
         goodwe_family="",
     ),
+    "GROWATT_WIFI_X": Inverter(
+        id="GROWATT_WIFI_X",
+        name="Growatt ShineWifi-X (ESPHome)",
+        manufacturer="Growatt",
+        sensors=_wifi_x_sensors(),
+        read_ranges=[],
+        protocol="ha_entity",
+        goodwe_family="",
+    ),
 }

haos-addon/src/main.py

@@ -14,6 +14,7 @@ import history
 from modbus_client import ModbusReader
 from goodwe_client import GoodweReader
 from wallbox_client import WallboxReader
+from ha_entity_client import HAEntityReader
 from ems_controller import EmsController
 from mqtt_publisher import MqttPublisher
 from surplus_devices import SurplusDeviceController
@@ -272,12 +273,16 @@ def _poll_loop(inv_cfg: Dict[str, Any], stop: threading.Event):
         log.error("[%s] Ungültige Konfiguration: %s", inv_id, e)
         return
 
-    host = inv_cfg["modbus_ip"]
+    host = inv_cfg.get("modbus_ip", "")
     ems: Optional[EmsController] = None
     if inverter.protocol == "goodwe_udp":
         reader = GoodweReader(host=host, family=inverter.goodwe_family)
         log.info("[%s] Poll-Loop: %s @ %s (Goodwe UDP/8899) alle %ds",
                  inv_id, inverter.name, host, interval)
+    elif inverter.protocol == "ha_entity":
+        reader = HAEntityReader(entity_prefix=inv_cfg.get("ha_entity_prefix", ""))
+        log.info("[%s] Poll-Loop: %s (HA-Entity Prefix: %s) alle %ds",
+                 inv_id, inverter.name, inv_cfg.get("ha_entity_prefix", ""), interval)
     elif inverter.protocol == "kathrein":
         reader = WallboxReader(host=host, port=port, timeout=min(5.0, interval * 0.4))
         ems = EmsController(
@@ -832,10 +837,17 @@ def api_import_config():
     if not isinstance(inverters, list):
         return jsonify({"error": "inverters ungültig"}), 400
     for inv in inverters:
-        if not inv.get("modbus_ip"):
+        model_id = inv.get("inverter_model")
+        if model_id not in INVERTERS:
+            return jsonify({"error": f"Unbekanntes Modell: {model_id}"}), 400
+        protocol = INVERTERS[model_id].protocol
+        # modbus_ip wird als generisches Host-Feld fuer alle IP-basierten Protokolle
+        # wiederverwendet (modbus, goodwe_udp, kathrein) — nur ha_entity braucht keins.
+        if protocol == "ha_entity":
+            if not inv.get("ha_entity_prefix"):
+                return jsonify({"error": f"ha_entity_prefix fehlt in Gerät {inv.get('name', '?')}"}), 400
+        elif not inv.get("modbus_ip"):
             return jsonify({"error": f"modbus_ip fehlt in Gerät {inv.get('name', '?')}"}), 400
-        if inv.get("inverter_model") not in INVERTERS:
-            return jsonify({"error": f"Unbekanntes Modell: {inv.get('inverter_model')}"}), 400
 
     with State.lock:
         if mqtt := data.get("mqtt"):

haos-addon/src/web/index.html

@@ -335,12 +335,19 @@
       <input type="text" id="modal-name" placeholder="z.B. Dach Süd"></div>
     <div class="field"><label>Gerätetyp</label>
       <select id="modal-model"></select></div>
-    <div class="field"><label>IP-Adresse</label>
-      <input type="text" id="modal-ip" placeholder="10.10.20.190"></div>
-    <div class="field"><label>Modbus Port</label>
-      <input type="number" id="modal-port" value="502"></div>
-    <div class="field"><label>Modbus Slave-Adresse</label>
-      <input type="number" id="modal-addr" value="1" min="1" max="247"></div>
+    <div id="modbus-fields">
+      <div class="field"><label>IP-Adresse</label>
+        <input type="text" id="modal-ip" placeholder="10.10.20.190"></div>
+      <div class="field"><label>Modbus Port</label>
+        <input type="number" id="modal-port" value="502"></div>
+      <div class="field"><label>Modbus Slave-Adresse</label>
+        <input type="number" id="modal-addr" value="1" min="1" max="247"></div>
+    </div>
+    <div id="ha-entity-fields" style="display:none">
+      <div class="field"><label>HA Entity-Prefix</label>
+        <input type="text" id="modal-ha-prefix" placeholder="growatt_wifi_x_1">
+        <div style="font-size:11px;color:var(--muted);margin-top:3px">Ohne "sensor."-Präfix — z.B. bei <code>sensor.growatt_wifi_x_1_dcpower</code> ist der Wert <code>growatt_wifi_x_1</code>. Braucht ein bereits per ESPHome in HA eingebundenes Gerät, keinen direkten Netzwerkzugriff.</div></div>
+    </div>
     <div class="field"><label>MQTT Topic-Präfix</label>
       <input type="text" id="modal-prefix" placeholder="growatt/wechselrichter1"></div>
     <div class="field"><label>Abfrageintervall (Sekunden)</label>
@@ -736,6 +743,122 @@ function renderEnergy(inverters, aggregates, period, spotData) {
 
 // ── Finance Tab ───────────────────────────────────────────────
 
+// Erzeugt plausible, aber frei erfundene Tagesdaten fürs Beispiel-Diagramm im
+// Leerzustand (Erstinstallation). Deterministisch (kein echter Zufall), damit
+// die Vorschau bei jedem Laden gleich aussieht statt bei jedem Reload zu springen.
+function exampleFinanceDays(n) {
+  const out = [];
+  const today = new Date();
+  for (let i = n - 1; i >= 0; i--) {
+    const d = new Date(today); d.setDate(d.getDate() - i);
+    const wave = 4.2 + 2.6 * Math.sin(i * 0.6) + (i % 3 === 0 ? 1.4 : 0);
+    const fixed = Math.max(1.5, wave);
+    const spot = Math.max(0.8, fixed * (0.68 + 0.1 * Math.cos(i * 0.9)));
+    out.push({ date: d.toISOString().slice(0, 10), fixed_eur: +fixed.toFixed(2), spot_eur: +spot.toFixed(2) });
+  }
+  return out;
+}
+
+// Baut das Kosten-Balkendiagramm (echte oder Beispiel-Daten). Aggregiert ab
+// 14 Wochen (98 Tagen) angesammelter Historie automatisch von Tages- auf
+// Wochenbalken; zeigt davon je nach verfügbarer Breite die letzten 10–28
+// Perioden (rollierendes Fenster — ältere Balken wandern rechts raus, sobald
+// neue dazukommen).
+function buildCostChart(days, el, isExample) {
+  const C = isExample
+    ? { fixed: '#5b6472', spot: '#6b6155', grid: '#262b33' }
+    : { fixed: '#58a6ff', spot: '#f0883e', grid: '#30363d' };
+
+  const rawN = days.length;
+  const bucket = rawN >= 98 ? 7 : 1;
+  const allPeriods = bucket === 1 ? days.map(d => ({
+      fixed_eur: d.fixed_eur, spot_eur: d.spot_eur, label: d.date.slice(5),
+    })) : (() => {
+      const out = [];
+      for (let i = 0; i < days.length; i += bucket) {
+        const chunk = days.slice(i, i + bucket);
+        const fixed = chunk.reduce((s, d) => s + (d.fixed_eur || 0), 0);
+        const spotVals = chunk.map(d => d.spot_eur).filter(v => v != null);
+        const spot = spotVals.length ? spotVals.reduce((a, b) => a + b, 0) : null;
+        out.push({ fixed_eur: fixed, spot_eur: spot, label: chunk[0].date.slice(5) });
+      }
+      return out;
+    })();
+
+  // Container-Breite messen und die SVG in echten Pixeln in genau dieser Breite
+  // zeichnen (keine viewBox-Skalierung) — Höhe bleibt dabei fix, unabhängig von
+  // der Breite. Auf breiten Screens werden mehr Perioden gezeigt statt dieselben
+  // künstlich zu verbreitern.
+  const H = 240, PL = 40, PR = 8, PT = 14, PB = 46;
+  const measuredW = el.clientWidth || 380;
+  const W = Math.max(300, measuredW);
+  const cW = W - PL - PR;
+  const IDEAL_SLOT = 24;   // px/Periode, entspricht dem Slot, der auf Handy-Breite gut aussah
+  const maxPeriods = Math.min(28, Math.max(10, Math.round(cW / IDEAL_SLOT)));
+  const periods = allPeriods.slice(-maxPeriods);
+
+  const n = periods.length;
+  const cH = H - PT - PB;
+  const slot = cW / n;
+  const barW = Math.max(3, Math.min(26, slot * 0.36));
+  const barGap = Math.max(1.5, slot * 0.08);
+  const rBar = Math.min(2.5, barW / 2);
+
+  const allVals = periods.flatMap(d => [d.fixed_eur, d.spot_eur].filter(v => v != null));
+  const maxVal  = Math.max(...allVals, 0.01);
+
+  const yTicks = 4;
+  let gridLines = '', yLabels = '';
+  for (let i = 0; i <= yTicks; i++) {
+    const v = maxVal * i / yTicks;
+    const y = PT + cH - (cH * i / yTicks);
+    gridLines += `<line x1="${PL}" y1="${y.toFixed(1)}" x2="${W-PR}" y2="${y.toFixed(1)}" stroke="${C.grid}" stroke-width="1" stroke-dasharray="2,3"/>`;
+    yLabels   += `<text x="${PL-6}" y="${(y+3).toFixed(1)}" text-anchor="end" font-size="9" fill="#8b949e">${fEur(v)}</text>`;
+  }
+
+  const gradId = isExample ? 'Ex' : '';
+  let bars = '', xLabels = '';
+  periods.forEach((d, i) => {
+    const cx = PL + i * slot + slot / 2;
+    const hFixed = Math.max(0, cH * d.fixed_eur / maxVal);
+    bars += `<rect x="${(cx - barGap/2 - barW).toFixed(1)}" y="${(PT + cH - hFixed).toFixed(1)}" width="${barW.toFixed(1)}" height="${Math.max(hFixed,1).toFixed(1)}" rx="${rBar}" fill="url(#gradFixed${gradId})"/>`;
+    if (d.spot_eur != null) {
+      const hSpot = Math.max(0, cH * d.spot_eur / maxVal);
+      bars += `<rect x="${(cx + barGap/2).toFixed(1)}" y="${(PT + cH - hSpot).toFixed(1)}" width="${barW.toFixed(1)}" height="${Math.max(hSpot,1).toFixed(1)}" rx="${rBar}" fill="url(#gradSpot${gradId})"/>`;
+    }
+    const ly = H - PB + 12;
+    xLabels += `<text x="${cx.toFixed(1)}" y="${ly}" text-anchor="end" font-size="8.5" fill="#8b949e" transform="rotate(-40 ${cx.toFixed(1)} ${ly})">${d.label}</text>`;
+  });
+
+  const defs = `<defs>
+    <linearGradient id="gradFixed${gradId}" x1="0" y1="0" x2="0" y2="1">
+      <stop offset="0%" stop-color="${C.fixed}" stop-opacity="0.95"/>
+      <stop offset="100%" stop-color="${C.fixed}" stop-opacity="0.55"/>
+    </linearGradient>
+    <linearGradient id="gradSpot${gradId}" x1="0" y1="0" x2="0" y2="1">
+      <stop offset="0%" stop-color="${C.spot}" stop-opacity="0.95"/>
+      <stop offset="100%" stop-color="${C.spot}" stop-opacity="0.55"/>
+    </linearGradient>
+  </defs>`;
+
+  const bucketLabel = bucket === 1 ? 'Tag' : 'Woche';
+  const rangeNote = allPeriods.length > n ? ` · letzte ${n}` : '';
+  const legend = `<div style="display:flex;gap:18px;margin-top:10px;font-size:11px;color:var(--text-dim)">
+      <span style="display:inline-flex;align-items:center;gap:6px"><span style="width:10px;height:10px;border-radius:3px;background:${C.fixed};display:inline-block"></span>Festpreis</span>
+      <span style="display:inline-flex;align-items:center;gap:6px"><span style="width:10px;height:10px;border-radius:3px;background:${C.spot};display:inline-block"></span>Spot (hypothetisch)</span>
+    </div>`;
+
+  return `
+    <div style="position:relative;border-top:1px solid var(--border);padding-top:24px;margin-top:4px">
+      <div style="font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:14px">Kosten je ${bucketLabel}${rangeNote}</div>
+      <svg width="${W}" height="${H}" style="display:block">
+        ${defs}${gridLines}${yLabels}${bars}${xLabels}
+      </svg>
+      ${legend}
+      ${isExample ? `<div style="position:absolute;top:20px;right:0;font-size:10px;font-weight:700;letter-spacing:.08em;color:var(--text-dim);background:var(--surface2);border:1px solid var(--border);border-radius:20px;padding:3px 10px">BEISPIEL</div>` : ''}
+    </div>`;
+}
+
 async function loadFinance() {
   const el = document.getElementById("finance-content");
   let data;
@@ -746,10 +869,14 @@ async function loadFinance() {
   const { days, fixed_total_eur, spot_total_eur, savings_eur, period_start, spot_days, total_days } = data;
 
   if (!days || days.length === 0) {
-    el.innerHTML = `<div style="text-align:center;padding:40px;color:var(--text-dim)">
-      <div style="font-size:32px;margin-bottom:12px">📊</div>
-      <div style="font-weight:600;margin-bottom:6px">Noch keine Daten</div>
-      <div style="font-size:13px">Der Tracker sammelt ab morgen täglich Daten.<br>Abrechnungsjahr ab ${period_start}.</div>
+    const exampleChart = buildCostChart(exampleFinanceDays(14), el, true);
+    el.innerHTML = `<div style="padding:4px 0">
+      <div style="text-align:center;padding:28px 20px;color:var(--text-dim);border:1px dashed var(--border);border-radius:var(--radius);margin-bottom:24px">
+        <div style="font-size:28px;margin-bottom:10px">📊</div>
+        <div style="font-weight:600;margin-bottom:6px;color:var(--text)">Noch keine echten Daten</div>
+        <div style="font-size:13px">Der Tracker sammelt ab morgen täglich Daten.<br>Abrechnungsjahr ab ${period_start}. Unten siehst du, wie die Ansicht dann aussieht.</div>
+      </div>
+      ${exampleChart}
     </div>`;
     return;
   }
@@ -796,92 +923,7 @@ async function loadFinance() {
       ${spotCard}${savCard}
     </div>`;
 
-  // ── SVG-Balkendiagramm ────────────────────────────────────────
-  // Bei langen Abrechnungsjahren nicht jeden einzelnen Tag zeigen — statt 112
-  // Tagesbalken lieber ~16 Wochenbalken, deutlich lesbarer und trotzdem
-  // aussagekräftig für "würde sich Spot lohnen".
-  const rawN = days.length;
-  const bucket = rawN > 180 ? 14 : rawN > 21 ? 7 : 1;
-  const periods = bucket === 1 ? days.map(d => ({
-      fixed_eur: d.fixed_eur, spot_eur: d.spot_eur, label: d.date.slice(5),
-    })) : (() => {
-      const out = [];
-      for (let i = 0; i < days.length; i += bucket) {
-        const chunk = days.slice(i, i + bucket);
-        const fixed = chunk.reduce((s, d) => s + (d.fixed_eur || 0), 0);
-        const spotVals = chunk.map(d => d.spot_eur).filter(v => v != null);
-        const spot = spotVals.length ? spotVals.reduce((a, b) => a + b, 0) : null;
-        const from = chunk[0].date.slice(5), to = chunk[chunk.length - 1].date.slice(5);
-        out.push({ fixed_eur: fixed, spot_eur: spot, label: from === to ? from : `${from}–${to}` });
-      }
-      return out;
-    })();
-
-  const n = periods.length;
-  const H = 190, PL = 44, PR = 12, PT = 14, PB = 30;
-  const MIN_SLOT = 34;   // px pro Balkenpaar — bewusst großzügig, jetzt wo wenige Balken übrig sind
-  const W = Math.max(600, PL + PR + n * MIN_SLOT);
-  const cW = W - PL - PR;
-  const cH = H - PT - PB;
-  const slot = cW / n;
-  const barW = Math.min(22, Math.max(4, slot * 0.34));
-  const barGap = Math.max(2, slot * 0.06);
-
-  const allVals = periods.flatMap(d => [d.fixed_eur, d.spot_eur].filter(v => v != null));
-  const maxVal  = Math.max(...allVals, 0.01);
-
-  const yTicks = 4;
-  let gridLines = '', yLabels = '';
-  for (let i = 0; i <= yTicks; i++) {
-    const v = maxVal * i / yTicks;
-    const y = PT + cH - (cH * i / yTicks);
-    gridLines += `<line x1="${PL}" y1="${y.toFixed(1)}" x2="${W-PR}" y2="${y.toFixed(1)}" stroke="${C.grid}" stroke-width="1" stroke-dasharray="2,4"/>`;
-    yLabels   += `<text x="${PL-8}" y="${(y+3).toFixed(1)}" text-anchor="end" font-size="10" fill="#8b949e">${fEur(v)}</text>`;
-  }
-
-  const labelStep = Math.max(1, Math.round(50 / slot));
-  const rBar = Math.min(3, barW / 2);
-  let bars = '', xLabels = '';
-  periods.forEach((d, i) => {
-    const cx = PL + i * slot + slot / 2;
-    const hFixed = Math.max(0, cH * d.fixed_eur / maxVal);
-    bars += `<rect x="${(cx - barGap/2 - barW).toFixed(1)}" y="${(PT + cH - hFixed).toFixed(1)}" width="${barW.toFixed(1)}" height="${Math.max(hFixed,1).toFixed(1)}" rx="${rBar}" fill="url(#gradFixed)"/>`;
-    if (d.spot_eur != null) {
-      const hSpot = Math.max(0, cH * d.spot_eur / maxVal);
-      bars += `<rect x="${(cx + barGap/2).toFixed(1)}" y="${(PT + cH - hSpot).toFixed(1)}" width="${barW.toFixed(1)}" height="${Math.max(hSpot,1).toFixed(1)}" rx="${rBar}" fill="url(#gradSpot)"/>`;
-    }
-    if (i % labelStep === 0) {
-      xLabels += `<text x="${cx.toFixed(1)}" y="${H - 6}" text-anchor="middle" font-size="9" fill="#8b949e">${d.label}</text>`;
-    }
-  });
-
-  const defs = `<defs>
-    <linearGradient id="gradFixed" x1="0" y1="0" x2="0" y2="1">
-      <stop offset="0%" stop-color="${C.fixed}" stop-opacity="0.95"/>
-      <stop offset="100%" stop-color="${C.fixed}" stop-opacity="0.55"/>
-    </linearGradient>
-    <linearGradient id="gradSpot" x1="0" y1="0" x2="0" y2="1">
-      <stop offset="0%" stop-color="${C.spot}" stop-opacity="0.95"/>
-      <stop offset="100%" stop-color="${C.spot}" stop-opacity="0.55"/>
-    </linearGradient>
-  </defs>`;
-
-  const bucketLabel = bucket === 1 ? 'Tag' : bucket === 7 ? 'Woche' : '2 Wochen';
-  const legend = `<div style="display:flex;gap:18px;margin-top:10px;font-size:11px;color:var(--text-dim)">
-      <span style="display:inline-flex;align-items:center;gap:6px"><span style="width:10px;height:10px;border-radius:3px;background:${C.fixed};display:inline-block"></span>Festpreis</span>
-      <span style="display:inline-flex;align-items:center;gap:6px"><span style="width:10px;height:10px;border-radius:3px;background:${C.spot};display:inline-block"></span>Spot (hypothetisch)</span>
-    </div>`;
-
-  const chartSection = `
-    <div style="border-top:1px solid var(--border);padding-top:24px;margin-top:4px">
-      <div style="font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:14px">Kosten je ${bucketLabel}</div>
-      <div style="overflow-x:auto">
-        <svg viewBox="0 0 ${W} ${H}" width="${W}" height="${H}" style="width:${W}px;max-width:none;display:block">
-          ${defs}${gridLines}${yLabels}${bars}${xLabels}
-        </svg>
-      </div>
-      ${legend}
-    </div>`;
+  const chartSection = buildCostChart(days, el, false);
 
   el.innerHTML = `<div style="padding:4px 0">${empfehlung}${cards}${chartSection}</div>`;
   } catch(e) { el.innerHTML = '<div class="no-data">Fehler beim Laden</div>'; console.error('loadFinance:', e); }
@@ -1001,7 +1043,9 @@ function renderInverterList() {
         </div>
       </div>
       <div class="inv-card-meta">
-        📡 ${esc(inv.modbus_ip)}:${inv.modbus_port || 502} · Slave ${inv.modbus_address || 1}<br>
+        ${inv.inverter_model === "GROWATT_WIFI_X"
+          ? `🏠 HA-Entity: ${esc(inv.ha_entity_prefix || "–")}`
+          : `📡 ${esc(inv.modbus_ip)}:${inv.modbus_port || 502} · Slave ${inv.modbus_address || 1}`}<br>
         📨 ${esc(inv.mqtt_topic_prefix)}<br>
         ⏱ alle ${inv.update_interval || 30}s
       </div>
@@ -1014,16 +1058,19 @@ function renderInverterList() {
   el.innerHTML = cards + `<div class="add-btn" onclick="openModal()">＋ Gerät hinzufügen</div>`;
 }
 
-function toggleEmsSection(model) {
+function onModelChange(model) {
   document.getElementById("ems-section").style.display =
     model === "KATHREIN_WALLBOX" ? "" : "none";
+  const isHaEntity = model === "GROWATT_WIFI_X";
+  document.getElementById("modbus-fields").style.display = isHaEntity ? "none" : "";
+  document.getElementById("ha-entity-fields").style.display = isHaEntity ? "" : "none";
 }
 
 async function openModal(invId) {
   await loadModels();
   const modal = document.getElementById("modal-backdrop");
   const modelSel = document.getElementById("modal-model");
-  modelSel.onchange = () => toggleEmsSection(modelSel.value);
+  modelSel.onchange = () => onModelChange(modelSel.value);
   if (invId) {
     const inv = invertersList.find(i => i.id === invId) || {};
     document.getElementById("modal-title").textContent = "Gerät bearbeiten";
@@ -1033,6 +1080,7 @@ async function openModal(invId) {
     document.getElementById("modal-ip").value = inv.modbus_ip || "";
     document.getElementById("modal-port").value = inv.modbus_port || 502;
     document.getElementById("modal-addr").value = inv.modbus_address || 1;
+    document.getElementById("modal-ha-prefix").value = inv.ha_entity_prefix || "";
     document.getElementById("modal-prefix").value = inv.mqtt_topic_prefix || "";
     document.getElementById("modal-interval").value = inv.update_interval || 30;
     document.getElementById("ems-min-pv").value = inv.ems_min_pv ?? 1400;
@@ -1048,6 +1096,7 @@ async function openModal(invId) {
     document.getElementById("modal-ip").value = "";
     document.getElementById("modal-port").value = "502";
     document.getElementById("modal-addr").value = "1";
+    document.getElementById("modal-ha-prefix").value = "";
     document.getElementById("modal-prefix").value = "growatt/wechselrichter" + (invertersList.length + 1);
     document.getElementById("modal-interval").value = "30";
     document.getElementById("ems-min-pv").value = "1400";
@@ -1056,7 +1105,7 @@ async function openModal(invId) {
     document.getElementById("ems-phases").value = "3";
     document.getElementById("ems-max-current").value = "32";
   }
-  toggleEmsSection(modelSel.value);
+  onModelChange(modelSel.value);
   modal.classList.add("open");
 }
 
@@ -1084,6 +1133,9 @@ async function saveInverter() {
     mqtt_topic_prefix: document.getElementById("modal-prefix").value.trim(),
     update_interval: parseInt(document.getElementById("modal-interval").value),
   };
+  if (model === "GROWATT_WIFI_X") {
+    inv.ha_entity_prefix = document.getElementById("modal-ha-prefix").value.trim();
+  }
   if (model === "KATHREIN_WALLBOX") {
     inv.ems_min_pv = parseInt(document.getElementById("ems-min-pv").value);
     inv.ems_timeout = parseFloat(document.getElementById("ems-timeout").value);