feat: add GatewayMQTT component for ESP32 MQTT integration

.cspell.json

@@ -14,6 +14,8 @@
     "ignorePaths": [
         "**/*.json",
         "**/*.yaml",
+        "**/*_pb2.py",
+        "**/*.proto",
         ".gitignore",
       ],
     "import": [

.cspell/custom-dictionary-workspace.txt

@@ -6,6 +6,7 @@ afci
 AIO
 AIO's
 aiohttp
+aiomqtt
 Alertfeed
 allclose
 Anson
@@ -134,6 +135,7 @@ givtcp
 gridconsumption
 gridconsumptionpower
 growatt
+GWMQTT
 HACS
 hadashboard
 hahistory
@@ -169,6 +171,7 @@ ivtime
 jedlix
 jsyaml
 kaiming
+keepalive
 killall
 kopt
 Kostal
@@ -249,6 +252,7 @@ onmouseover
 openweathermap
 overfitting
 ownerapi
+pbgw
 pdata
 pdetails
 perc

apps/predbat/components.py

@@ -32,6 +32,14 @@
 from db_manager import DatabaseManager
 from fox import FoxAPI
 from web_mcp import PredbatMCPServer
+
+try:
+    from gateway import GatewayMQTT
+
+    HAS_GATEWAY = True
+except (ImportError, Exception):
+    HAS_GATEWAY = False
+    GatewayMQTT = None
 from load_ml_component import LoadMLComponent
 from datetime import datetime, timezone, timedelta
 import asyncio
@@ -309,6 +317,21 @@
     },
 }
 
+if HAS_GATEWAY:
+    COMPONENT_LIST["gateway"] = {
+        "class": GatewayMQTT,
+        "name": "PredBat Gateway",
+        "event_filter": "predbat_gateway_",
+        "args": {
+            "gateway_device_id": {"required": True, "config": "gateway_device_id"},
+            "mqtt_host": {"required": True, "config": "gateway_mqtt_host"},
+            "mqtt_port": {"required": False, "config": "gateway_mqtt_port", "default": 8883},
+            "mqtt_token": {"required": True, "config": "gateway_mqtt_token"},
+        },
+        "phase": 1,
+        "can_restart": True,
+    }
+
 
 class Components:
     """Central component registry and lifecycle manager.

apps/predbat/config.py

@@ -1933,6 +1933,33 @@
         "charge_discharge_with_rate": False,
         "target_soc_used_for_discharge": True,
     },
+    "GWMQTT": {
+        "name": "ESP32 Gateway MQTT",
+        "has_rest_api": False,
+        "has_mqtt_api": False,
+        "output_charge_control": "power",
+        "charge_control_immediate": True,
+        "has_charge_enable_time": True,
+        "has_discharge_enable_time": True,
+        "has_target_soc": True,
+        "has_reserve_soc": True,
+        "has_timed_pause": False,
+        "charge_time_format": "HH:MM:SS",
+        "charge_time_entity_is_option": True,
+        "soc_units": "%",
+        "num_load_entities": 1,
+        "has_ge_inverter_mode": False,
+        "time_button_press": False,
+        "clock_time_format": "%H:%M:%S",
+        "write_and_poll_sleep": 2,
+        "has_time_window": True,
+        "support_charge_freeze": False,
+        "support_discharge_freeze": False,
+        "has_idle_time": False,
+        "can_span_midnight": True,
+        "charge_discharge_with_rate": False,
+        "target_soc_used_for_discharge": False,
+    },
 }
 
 # Control modes for Solax inverters