Switch PV curve to HA History API for full day data

home_assistant.py

@@ -2,6 +2,7 @@
 Home Assistant API client for Matrix64 LED display.
 """
 import requests
+import datetime
 from config import (
     HA_TOKEN, HASS_URL,
     BRIGHTNESS_ENTITY_ID, WEATHER_ENTITY_ID,
@@ -114,3 +115,47 @@ def get_solar_status():
         "today_energy": safe_float(today_energy),
         "tesla_power": tesla_power_w,
     }
+
+
+def get_solar_history():
+    """Get today's solar production history from HA History API.
+    Returns list of (hour_float, watts) tuples."""
+    headers = {
+        "Authorization": f"Bearer {HA_TOKEN}",
+        "Content-Type": "application/json",
+    }
+    now = datetime.datetime.now()
+    start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+    start_str = start.strftime("%Y-%m-%dT%H:%M:%S")
+    url = (f"{HASS_URL}/api/history/period/{start_str}"
+           f"?filter_entity_id={SOLAR_PRODUCTION_ENTITY}"
+           f"&minimal_response&no_attributes")
+    try:
+        response = requests.get(url, headers=headers, timeout=15)
+        if response.status_code != 200:
+            return []
+        data = response.json()
+        if not data or not data[0]:
+            return []
+        points = []
+        for entry in data[0]:
+            try:
+                state = float(entry.get("state", 0))
+                ts = entry.get("last_changed", "")
+                # Parse ISO timestamp
+                if "+" in ts:
+                    ts = ts.split("+")[0]
+                elif ts.endswith("Z"):
+                    ts = ts[:-1]
+                dt = datetime.datetime.fromisoformat(ts)
+                # Convert UTC to local time
+                utc_offset = now - datetime.datetime.utcnow()
+                dt_local = dt + utc_offset
+                hour_f = dt_local.hour + dt_local.minute / 60.0
+                points.append((hour_f, state))
+            except (ValueError, TypeError):
+                continue
+        return points
+    except Exception as e:
+        print(f"Error fetching solar history: {e}")
+        return []