Add Download diagnostics support

custom_components/goodwe/diagnostics.py

@@ -0,0 +1,35 @@
+"""Diagnostics support for Goodwe."""
+from __future__ import annotations
+
+from dataclasses import asdict
+from typing import Any
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from . import GoodweUpdateCoordinator
+from .const import DOMAIN, KEY_DEVICE_INFO, KEY_INVERTER
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, config_entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    inverter = hass.data[DOMAIN][config_entry.entry_id][KEY_INVERTER]
+    device_info = hass.data[DOMAIN][config_entry.entry_id][KEY_DEVICE_INFO]
+
+    diagnostics_data = {
+        "config_entry": config_entry.as_dict(),
+        "inverter": {
+            "model_name": inverter.model_name,
+            "firmware": inverter.firmware,
+            "arm_firmware": inverter.arm_firmware,
+            "dsp1_version": inverter.dsp1_version,
+            "dsp2_version": inverter.dsp2_version,
+            "dsp_svn_version": inverter.dsp_svn_version,
+            "arm_version": inverter.arm_version,
+            "arm_svn_version": inverter.arm_svn_version,
+        },
+    }
+
+    return diagnostics_data