Use reconfigure helpers in fronius config flow (#128001)

* Use reconfigure helpers in fronius

* Drop _async_abort_entries_match

homeassistant/components/fronius/config_flow.py

@@ -10,7 +10,7 @@ from pyfronius import Fronius, FroniusError
 import voluptuous as vol
 
 from homeassistant.components.dhcp import DhcpServiceInfo
-from homeassistant.config_entries import ConfigEntry, ConfigFlow, ConfigFlowResult
+from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
 from homeassistant.const import CONF_HOST
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import HomeAssistantError
@@ -72,7 +72,6 @@ class FroniusConfigFlow(ConfigFlow, domain=DOMAIN):
     def __init__(self) -> None:
         """Initialize flow."""
         self.info: FroniusConfigEntryData
-        self._entry: ConfigEntry | None = None
 
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None
@@ -145,6 +144,7 @@ class FroniusConfigFlow(ConfigFlow, domain=DOMAIN):
     ) -> ConfigFlowResult:
         """Add reconfigure step to allow to reconfigure a config entry."""
         errors = {}
+        reconfigure_entry = self._get_reconfigure_entry()
 
         if user_input is not None:
             try:
@@ -155,33 +155,16 @@ class FroniusConfigFlow(ConfigFlow, domain=DOMAIN):
                 _LOGGER.exception("Unexpected exception")
                 errors["base"] = "unknown"
             else:
-                # Config didn't change or is already configured in another entry
-                self._async_abort_entries_match(dict(info))
+                await self.async_set_unique_id(unique_id)
+                self._abort_if_unique_id_mismatch()
 
-                existing_entry = await self.async_set_unique_id(
-                    unique_id, raise_on_progress=False
-                )
-                assert self._entry is not None
-                if existing_entry and existing_entry.entry_id != self._entry.entry_id:
-                    # Uid of device is already configured in another entry (but with different host)
-                    self._abort_if_unique_id_configured()
+                return self.async_update_reload_and_abort(reconfigure_entry, data=info)
 
-                return self.async_update_reload_and_abort(
-                    self._entry,
-                    data=info,
-                    reason="reconfigure_successful",
-                )
-
-        if self._entry is None:
-            self._entry = self.hass.config_entries.async_get_entry(
-                self.context["entry_id"]
-            )
-            assert self._entry is not None
-        host = self._entry.data[CONF_HOST]
+        host = reconfigure_entry.data[CONF_HOST]
         return self.async_show_form(
             step_id="reconfigure",
             data_schema=vol.Schema({vol.Required(CONF_HOST, default=host): str}),
-            description_placeholders={"device": self._entry.title},
+            description_placeholders={"device": reconfigure_entry.title},
             errors=errors,
         )
 

homeassistant/components/fronius/strings.json

@@ -26,7 +26,8 @@
     "abort": {
       "already_configured": "[%key:common::config_flow::abort::already_configured_device%]",
       "invalid_host": "[%key:common::config_flow::error::invalid_host%]",
-      "reconfigure_successful": "[%key:common::config_flow::abort::reconfigure_successful%]"
+      "reconfigure_successful": "[%key:common::config_flow::abort::reconfigure_successful%]",
+      "unique_id_mismatch": "The identifier does not match the previous identifier"
     }
   },
   "entity": {

tests/components/fronius/test_config_flow.py

@@ -344,7 +344,7 @@ async def test_reconfigure(hass: HomeAssistant) -> None:
     """Test reconfiguring an entry."""
     entry = MockConfigEntry(
         domain=DOMAIN,
-        unique_id="123.4567890",
+        unique_id="1234567",
         data={
             CONF_HOST: "10.1.2.3",
             "is_logger": True,
@@ -490,7 +490,7 @@ async def test_reconfigure_already_configured(hass: HomeAssistant) -> None:
         await hass.async_block_till_done()
 
     assert result["type"] is FlowResultType.ABORT
-    assert result["reason"] == "already_configured"
+    assert result["reason"] == "unique_id_mismatch"
     assert len(mock_setup_entry.mock_calls) == 0
 
 
@@ -531,4 +531,4 @@ async def test_reconfigure_already_existing(hass: HomeAssistant) -> None:
         await hass.async_block_till_done()
 
     assert result2["type"] is FlowResultType.ABORT
-    assert result2["reason"] == "already_configured"
+    assert result2["reason"] == "unique_id_mismatch"