initial commit

custom_components/truenas/config_flow.py

@@ -0,0 +1,113 @@
+"""Config flow to configure TrueNAS"""
+
+import voluptuous as vol
+from logging import getLogger
+from homeassistant.config_entries import CONN_CLASS_LOCAL_POLL, ConfigFlow
+from homeassistant.core import callback
+from homeassistant.const import (
+    CONF_HOST,
+    CONF_NAME,
+    CONF_API_KEY,
+    CONF_SSL,
+    CONF_VERIFY_SSL,
+)
+from .const import (
+    DEFAULT_DEVICE_NAME,
+    DEFAULT_HOST,
+    DEFAULT_SSL,
+    DEFAULT_SSL_VERIFY,
+    DOMAIN,
+)
+from .truenas_api import TrueNASAPI
+
+_LOGGER = getLogger(__name__)
+
+
+# ---------------------------
+#   configured_instances
+# ---------------------------
+@callback
+def configured_instances(hass):
+    """Return a set of configured instances"""
+    return {
+        entry.data[CONF_NAME] for entry in hass.config_entries.async_entries(DOMAIN)
+    }
+
+
+# ---------------------------
+#   TrueNASConfigFlow
+# ---------------------------
+class TrueNASConfigFlow(ConfigFlow, domain=DOMAIN):
+    """TrueNASConfigFlow class"""
+
+    VERSION = 1
+    CONNECTION_CLASS = CONN_CLASS_LOCAL_POLL
+
+    def __init__(self):
+        """Initialize TrueNASConfigFlow"""
+
+    async def async_step_import(self, user_input=None):
+        """Occurs when a previous entry setup fails and is re-initiated"""
+        return await self.async_step_user(user_input)
+
+    async def async_step_user(self, user_input=None):
+        """Handle a flow initialized by the user"""
+        errors = {}
+        if user_input is not None:
+            # Check if instance with this name already exists
+            if user_input[CONF_NAME] in configured_instances(self.hass):
+                errors["base"] = "name_exists"
+
+            # Test connection
+            api = await self.hass.async_add_executor_job(
+                TrueNASAPI,
+                self.hass,
+                user_input[CONF_HOST],
+                user_input[CONF_API_KEY],
+                user_input[CONF_SSL],
+                user_input[CONF_VERIFY_SSL],
+            )
+
+            conn, errorcode = await self.hass.async_add_executor_job(
+                api.connection_test
+            )
+            if not conn:
+                errors[CONF_HOST] = errorcode
+                _LOGGER.error("TrueNAS connection error (%s)", errorcode)
+
+            # Save instance
+            if not errors:
+                return self.async_create_entry(
+                    title=user_input[CONF_NAME], data=user_input
+                )
+
+            return self._show_config_form(user_input=user_input, errors=errors)
+
+        return self._show_config_form(
+            user_input={
+                CONF_NAME: DEFAULT_DEVICE_NAME,
+                CONF_HOST: DEFAULT_HOST,
+                CONF_API_KEY: "",
+                CONF_SSL: DEFAULT_SSL,
+                CONF_VERIFY_SSL: DEFAULT_SSL_VERIFY,
+            },
+            errors=errors,
+        )
+
+    def _show_config_form(self, user_input, errors=None):
+        """Show the configuration form"""
+        return self.async_show_form(
+            step_id="user",
+            data_schema=vol.Schema(
+                {
+                    vol.Required(CONF_NAME, default=user_input[CONF_NAME]): str,
+                    vol.Required(CONF_HOST, default=user_input[CONF_HOST]): str,
+                    vol.Required(CONF_API_KEY, default=user_input[CONF_API_KEY]): str,
+                    vol.Optional(CONF_SSL, default=user_input[CONF_SSL]): bool,
+                    vol.Optional(
+                        CONF_VERIFY_SSL, default=user_input[CONF_VERIFY_SSL]
+                    ): bool,
+                }
+            ),
+            errors=errors,
+        )