Fix sensor creation and improve config flow

custom_components/apsystems_ecu_proxy/__init__.py

@@ -92,15 +92,18 @@ def __init__(self, hass: HomeAssistant, config_entry: ConfigEntry) -> None:
         """Initialize coordinator."""
         self.hass = hass
         self.config_entry = config_entry
-        
+
         # Add listener for midnight reset.
         self.midnight_tracker_unregister = async_track_utc_time_change(
             hass, self.midnight_reset, "0", "0", "0", local=True
         )
+
+        # Get configuration. If initial data else options.
+        self.no_update_timeout = int(self.config_entry.data.get("no_update_timeout"))
+
         # Add listener for 0 or None if no update.
         self.no_update_timer_unregister = None
 
-
     async def midnight_reset(self, *args):
         """Send dispatcher message to all listeners to reset."""
         _LOGGER.debug("midnight reset")
@@ -118,7 +121,9 @@ async def setup_socket_servers(self) -> None:
 
         for port in SOCKET_PORTS:
             _LOGGER.debug("Creating server for port %s", port)
-            server = MySocketAPI(host, port, self.async_update_callback, self.config_entry)
+            server = MySocketAPI(
+                host, port, self.async_update_callback, self.config_entry
+            )
             await server.start()
             self.socket_servers.append(server)
 
@@ -233,13 +238,6 @@ def async_update_callback(self, data: dict[str, Any]):
                                 _LOGGER.warning("There was a value or index error")
                                 continue
 
-
-        # Get configuration. If initial data else options.
-        self.no_update_timeout = int(
-            self.config_entry.options.get('no_update_timeout', 
-            self.config_entry.data.get('no_update_timeout'))
-        )
-
         # Start the no update timer with the updated value.
         self.no_update_timer_unregister = async_call_later(
             self.hass, timedelta(seconds=self.no_update_timeout), self.fire_no_update

custom_components/apsystems_ecu_proxy/api.py

@@ -6,9 +6,9 @@
 import logging
 import re
 import traceback
-from homeassistant.config_entries import ConfigEntry
 from typing import Any
 
+from homeassistant.config_entries import ConfigEntry
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -55,7 +55,9 @@
 class MySocketAPI:
     """API class."""
 
-    def __init__(self, host: str, port: int, callback: Callable, config_entry: ConfigEntry) -> None:
+    def __init__(
+        self, host: str, port: int, callback: Callable, config_entry: ConfigEntry
+    ) -> None:
         """Initialize API."""
         self.host = host
         self.port = port
@@ -65,9 +67,13 @@ def __init__(self, host: str, port: int, callback: Callable, config_entry: Confi
         self.ecu_mem = {}
         self.config_entry = config_entry
 
+        self.send_to_ema = self.get_config_value("send_to_ema", bool)
+        self.message_ignore_age = self.get_config_value("message_ignore_age", int)
+        self.ema_host = self.get_config_value("ema_host", str)
 
     def get_config_value(self, key, default_type):
-        return default_type(self.config_entry.options.get(key, self.config_entry.data.get(key)))
+        """Get config value."""
+        return default_type(self.config_entry.data.get(key))
 
     async def start(self) -> bool:
         """Start listening socket server."""
@@ -116,7 +122,6 @@ async def data_received(
                 # Send data to EMA and send response from EMA to ECU
                 # send_to_ema is used to stop sending for testing purposes.
                 # Get configuration. If initial data else options.
-                self.send_to_ema = self.get_config_value('send_to_ema', bool)
                 _LOGGER.debug("Send to EMA = %s", self.send_to_ema)
                 if self.send_to_ema:
                     response = await self.send_data_to_ema(self.port, data)
@@ -147,13 +152,12 @@ async def data_received(
                 ecu["timestamp"] = datetime.strptime(message[60:74], "%Y%m%d%H%M%S")
 
                 # MessageFilter: Ignore old messages.
-                self.message_ignore_age = self.get_config_value('message_ignore_age', int)
                 _LOGGER.debug("Message ignore age = %s", self.message_ignore_age)
                 if (
                     message_age := (datetime.now() - ecu["timestamp"]).total_seconds()
                 ) > self.message_ignore_age:
                     _LOGGER.debug(
-                        "Message told old with %s sec.",
+                        "Message told old with %s sec",
                         int(message_age),
                     )
                     return None
@@ -220,9 +224,9 @@ def msg_slice(start_pos: int, end_pos: int, m: re.Match = m) -> int:
         return inverters
 
     async def send_data_to_ema(self, port: int, data: bytes) -> bytes:
-        self.ema_host = self.get_config_value('ema_host', str)
-        _LOGGER.debug("EMA host = %s", self.ema_host)
         """Send data over async socket."""
+        _LOGGER.debug("EMA host = %s", self.ema_host)
+
         reader, writer = await asyncio.open_connection(self.ema_host, port)
         writer.write(data)
         await writer.drain()

custom_components/apsystems_ecu_proxy/config_flow.py

@@ -1,16 +1,36 @@
+"""Config flow."""
+
+import asyncio
 import logging
+
 import voluptuous as vol
-import asyncio
-from homeassistant import config_entries, exceptions
+
+from homeassistant import config_entries
 from homeassistant.core import callback
 
 from .const import DOMAIN, KEYS
 
 _LOGGER = logging.getLogger(__name__)
 
 
+async def validate_ip(ip_address: str) -> bool:
+    """Validate EMA server ip."""
+    try:
+        reader, writer = await asyncio.wait_for(
+            asyncio.open_connection(ip_address, 8995), timeout=3.0
+        )
+        # Close the connection neatly
+        writer.close()
+        await writer.wait_closed()
+    except (OSError, TimeoutError):
+        return False
+    else:
+        return True
+
+
 class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
     """Integration configuration."""
+
     VERSION = 1
     CONNECTION_CLASS = config_entries.CONN_CLASS_LOCAL_PUSH
 
@@ -24,71 +44,62 @@ def async_get_options_flow(config_entry):
     async def async_step_user(self, user_input=None):
         """First step: Initial set-up of integration options."""
         _LOGGER.debug("async_step_user")
-        schema = vol.Schema({
-            vol.Required(KEYS[0], default="3.67.1.32"): str,
-            vol.Required(KEYS[1], default="1800"): str,
-            vol.Required(KEYS[2], default="300"): str,
-            vol.Required(KEYS[3], default="660"): str,
-            vol.Required(KEYS[4], default=True): bool,
-        })
+        schema = vol.Schema(
+            {
+                vol.Required(KEYS[0], default="3.67.1.32"): str,
+                vol.Required(KEYS[1], default="1800"): str,
+                vol.Required(KEYS[2], default="300"): str,
+                vol.Required(KEYS[3], default="660"): str,
+                vol.Required(KEYS[4], default=True): bool,
+            }
+        )
 
         if user_input is not None:
-            if await OptionsFlowHandler.validate_ip(user_input["ema_host"]):
-                return self.async_create_entry(title="APsystems ECU proxy", data=user_input)
-            else:
-                return self.async_show_form(
-                    step_id="user",
-                    data_schema=schema,
-                    errors={"base": "Could not connect to the specified EMA host"},
+            if await validate_ip(user_input["ema_host"]):
+                return self.async_create_entry(
+                    title="APsystems ECU proxy", data=user_input
                 )
+
+            return self.async_show_form(
+                step_id="user",
+                data_schema=schema,
+                errors={"base": "Could not connect to the specified EMA host"},
+            )
         return self.async_show_form(step_id="user", data_schema=schema)
 
 
 class OptionsFlowHandler(config_entries.OptionsFlow):
     """Regular change of integration options."""
+
     def __init__(self, config_entry: config_entries.ConfigEntry) -> None:
+        """Init options handler."""
         self.config_entry = config_entry
 
     async def async_step_init(self, user_input=None):
         """Second step: Altering the integration options."""
+        errors = {}
         current_options = (
-            self.config_entry.data 
-            if not self.config_entry.options 
+            self.config_entry.data
+            if not self.config_entry.options
             else self.config_entry.options
         )
         _LOGGER.debug("async_step_init with configuration: %s", current_options)
-
-        schema = vol.Schema({
-            vol.Required(key, default=current_options.get(key)): (
-                str if key != "send_to_ema" else bool
-            )
-            for key in KEYS
-        })
 
+        schema = vol.Schema(
+            {
+                vol.Required(key, default=current_options.get(key)): (
+                    str if key != "send_to_ema" else bool
+                )
+                for key in KEYS
+            }
+        )
 
         if user_input is not None:
-            if await self.validate_ip(user_input["ema_host"]):
-                updated_options = current_options.copy()
-                updated_options.update(user_input)
-                return self.async_create_entry(title="", data=updated_options)
-            else:
-                return self.async_show_form(
-                    step_id="init",
-                    data_schema=schema,
-                    errors={"base": "Could not connect to the specified EMA host"},
+            if await validate_ip(user_input["ema_host"]):
+                self.hass.config_entries.async_update_entry(
+                    self.config_entry, data=user_input
                 )
-        return self.async_show_form(step_id="init", data_schema=schema)
+                return self.async_create_entry(title="", data={})
 
-    @staticmethod
-    async def validate_ip(ip_address: str) -> bool:
-        try:
-            reader, writer = await asyncio.wait_for(
-                asyncio.open_connection(ip_address, 8995),
-                timeout=3.0
-            )
-            # Close the connection neatly
-            writer.close()
-            await writer.wait_closed()
-            return True
-        except (OSError, asyncio.TimeoutError):
-            return False
+            errors["base"] = "Could not connect to the specified EMA host"
+        return self.async_show_form(step_id="init", data_schema=schema, errors=errors)

custom_components/apsystems_ecu_proxy/const.py

@@ -28,12 +28,12 @@
 
 # Config flow schema. These are also translated through associated json translations
 KEYS = [
-            "ema_host", 
-            "message_ignore_age", 
-            "max_stub_interval", 
-            "no_update_timeout", 
-            "send_to_ema"
-        ]
+    "ema_host",
+    "message_ignore_age",
+    "max_stub_interval",
+    "no_update_timeout",
+    "send_to_ema",
+]
 
 
 class SummationPeriod(StrEnum):

custom_components/apsystems_ecu_proxy/sensor.py

@@ -14,7 +14,6 @@
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-
 from homeassistant.const import (
     ATTR_UNIT_OF_MEASUREMENT,
     UnitOfElectricCurrent,
@@ -32,7 +31,6 @@
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.util import dt as dt_util
 
-
 from .const import (
     ATTR_SUMMATION_FACTOR,
     ATTR_SUMMATION_PERIOD,
@@ -323,7 +321,7 @@ def handle_ecu_registration(data: dict[str, Any]):
                     data=data.get(sensor.parameter), attributes=initial_attribute_values
                 ),
             )
-            sensors.append(APSystemsSensor(sensor, config))
+            sensors.append(APSystemsSensor(sensor, config, config_entry))
         add_entities(sensors)
 
     @callback
@@ -367,7 +365,7 @@ def handle_inverter_registration(data: dict[str, Any]):
                     data=data.get(sensor.parameter), attributes=initial_attribute_values
                 ),
             )
-            sensors.append(APSystemsSensor(sensor, config))
+            sensors.append(APSystemsSensor(sensor, config, config_entry))
 
         # Add Inverter channel sensors
         for channel in range(data.get("channel_qty", 0)):
@@ -388,7 +386,7 @@ def handle_inverter_registration(data: dict[str, Any]):
                     ),
                     name=f"{sensor.name} Ch {channel + 1}",
                 )
-                sensors.append(APSystemsSensor(sensor, config))
+                sensors.append(APSystemsSensor(sensor, config, config_entry))
 
         add_entities(sensors)
 
@@ -419,10 +417,10 @@ class APSystemsSensor(RestoreSensor, SensorEntity):
     _attr_extra_state_attributes = {}
 
     def __init__(
-        self, 
-        definition: APSystemSensorDefinition, 
+        self,
+        definition: APSystemSensorDefinition,
         config: APSystemSensorConfig,
-        config_entry: ConfigEntry  # Accept ConfigEntry to get dynamic config values
+        config_entry: ConfigEntry,  # Accept ConfigEntry to get dynamic config values
     ) -> None:
         """Initialise sensor."""
         self._definition = definition
@@ -437,6 +435,8 @@ def __init__(
         self._attr_state_class = definition.state_class
         self._attr_unique_id = self._config.unique_id
 
+        self.max_stub_interval = int(self.config_entry.data.get("max_stub_interval"))
+
     @property
     def is_summation_sensor(self) -> bool:
         """Is this a summation sensor."""
@@ -646,8 +646,8 @@ def summation_calculation(
         current_value: float,
         value: float,
     ) -> int | float:
-
         """Return summation value of value over time.
+
         If change in period, calculates a value over time from start of new period with
         max of MAX_STUB_INTERVAL.
         If no change in period, assumes value persisted since last timestamp.
@@ -669,12 +669,9 @@ def summation_calculation(
 
         sum_value = None
         has_changed = False
-        
+
         # Get configuration. If initial data else options.
-        self.max_stub_interval = int(
-            self.config_entry.options.get('max_stub_interval', 
-            self.config_entry.data.get('max_stub_interval'))
-        )
+
         _LOGGER.debug("Max stub interval = %s", self.max_stub_interval)
 
         # Has it crossed calculation period boundry?