Order the output of the automation editor (#14019)

* Order the output of the automation editor

* Lint

homeassistant/components/config/automation.py

@@ -1,6 +1,8 @@
 """Provide configuration end points for Automations."""
 import asyncio
+from collections import OrderedDict
 
+from homeassistant.const import CONF_ID
 from homeassistant.components.config import EditIdBasedConfigView
 from homeassistant.components.automation import (
     PLATFORM_SCHEMA, DOMAIN, async_reload)
@@ -13,8 +15,38 @@ CONFIG_PATH = 'automations.yaml'
 @asyncio.coroutine
 def async_setup(hass):
     """Set up the Automation config API."""
-    hass.http.register_view(EditIdBasedConfigView(
+    hass.http.register_view(EditAutomationConfigView(
         DOMAIN, 'config', CONFIG_PATH, cv.string,
         PLATFORM_SCHEMA, post_write_hook=async_reload
     ))
     return True
+
+
+class EditAutomationConfigView(EditIdBasedConfigView):
+    """Edit automation config."""
+
+    def _write_value(self, hass, data, config_key, new_value):
+        """Set value."""
+        index = None
+        for index, cur_value in enumerate(data):
+            if cur_value[CONF_ID] == config_key:
+                break
+        else:
+            cur_value = OrderedDict()
+            cur_value[CONF_ID] = config_key
+            index = len(data)
+            data.append(cur_value)
+
+        # Iterate through some keys that we want to have ordered in the output
+        updated_value = OrderedDict()
+        for key in ('id', 'alias', 'trigger', 'condition', 'action'):
+            if key in cur_value:
+                updated_value[key] = cur_value[key]
+            if key in new_value:
+                updated_value[key] = new_value[key]
+
+        # We cover all current fields above, but just in case we start
+        # supporting more fields in the future.
+        updated_value.update(cur_value)
+        updated_value.update(new_value)
+        data[index] = updated_value

tests/components/config/test_automation.py

@@ -0,0 +1,83 @@
+"""Test Automation config panel."""
+import json
+from unittest.mock import patch
+
+from homeassistant.bootstrap import async_setup_component
+from homeassistant.components import config
+
+
+async def test_get_device_config(hass, aiohttp_client):
+    """Test getting device config."""
+    with patch.object(config, 'SECTIONS', ['automation']):
+        await async_setup_component(hass, 'config', {})
+
+    client = await aiohttp_client(hass.http.app)
+
+    def mock_read(path):
+        """Mock reading data."""
+        return [
+            {
+                'id': 'sun',
+            },
+            {
+                'id': 'moon',
+            }
+        ]
+
+    with patch('homeassistant.components.config._read', mock_read):
+        resp = await client.get(
+            '/api/config/automation/config/moon')
+
+    assert resp.status == 200
+    result = await resp.json()
+
+    assert result == {'id': 'moon'}
+
+
+async def test_update_device_config(hass, aiohttp_client):
+    """Test updating device config."""
+    with patch.object(config, 'SECTIONS', ['automation']):
+        await async_setup_component(hass, 'config', {})
+
+    client = await aiohttp_client(hass.http.app)
+
+    orig_data = [
+            {
+                'id': 'sun',
+            },
+            {
+                'id': 'moon',
+            }
+        ]
+
+    def mock_read(path):
+        """Mock reading data."""
+        return orig_data
+
+    written = []
+
+    def mock_write(path, data):
+        """Mock writing data."""
+        written.append(data)
+
+    with patch('homeassistant.components.config._read', mock_read), \
+            patch('homeassistant.components.config._write', mock_write):
+        resp = await client.post(
+            '/api/config/automation/config/moon', data=json.dumps({
+                'trigger': [],
+                'action': [],
+                'condition': [],
+            }))
+
+    assert resp.status == 200
+    result = await resp.json()
+    assert result == {'result': 'ok'}
+
+    assert list(orig_data[1]) == ['id', 'trigger', 'condition', 'action']
+    assert orig_data[1] == {
+        'id': 'moon',
+        'trigger': [],
+        'condition': [],
+        'action': [],
+    }
+    assert written[0] == orig_data