Hangouts (#16049)

* add a component for hangouts

* add a notify component for hangouts

* add an extra message as title

* add support to listen to all conversations hangouts has

* move hangouts to package and add parameter documentation

* update .coveragerc and requirements_all.txt

* makes linter happy again

* bugfix

* add conversations parameter to command words

* Move the resolution of conversation names to conversations in own a function

* typo

* rename group of exclusion form 'id' to 'id or name'

* refactoring and use config_flow

* makes linter happy again

* remove unused imports

* fix not working regex commands

* fix translations

* cleanup

* remove step_init

* remove logging entry

* clean up events

* move constant

* remove unsed import

* add new files to .converagerc

* isort imports

* add hangouts_utils to ignored packages

* upadte doc and format

* fix I/O not in executor jon

* rename SERVICE_UPDATE_USERS_AND_CONVERSATIONS to SERVICE_UPDATE

* move EVENT_HANGOUTS_{CONNECTED,DISCONNECTED} to dispatcher

* add config flow tests

* Update tox.ini

homeassistant/components/hangouts/const.py

@@ -0,0 +1,78 @@
+"""Constants for Google Hangouts Component."""
+import logging
+
+import voluptuous as vol
+
+from homeassistant.components.notify import ATTR_MESSAGE, ATTR_TARGET
+from homeassistant.const import CONF_NAME
+import homeassistant.helpers.config_validation as cv
+
+_LOGGER = logging.getLogger('homeassistant.components.hangouts')
+
+
+DOMAIN = 'hangouts'
+
+CONF_2FA = '2fa'
+CONF_REFRESH_TOKEN = 'refresh_token'
+CONF_BOT = 'bot'
+
+CONF_CONVERSATIONS = 'conversations'
+CONF_DEFAULT_CONVERSATIONS = 'default_conversations'
+
+CONF_COMMANDS = 'commands'
+CONF_WORD = 'word'
+CONF_EXPRESSION = 'expression'
+
+EVENT_HANGOUTS_COMMAND = 'hangouts_command'
+
+EVENT_HANGOUTS_CONNECTED = 'hangouts_connected'
+EVENT_HANGOUTS_DISCONNECTED = 'hangouts_disconnected'
+EVENT_HANGOUTS_USERS_CHANGED = 'hangouts_users_changed'
+EVENT_HANGOUTS_CONVERSATIONS_CHANGED = 'hangouts_conversations_changed'
+
+CONF_CONVERSATION_ID = 'id'
+CONF_CONVERSATION_NAME = 'name'
+
+SERVICE_SEND_MESSAGE = 'send_message'
+SERVICE_UPDATE = 'update'
+
+
+TARGETS_SCHEMA = vol.All(
+    vol.Schema({
+        vol.Exclusive(CONF_CONVERSATION_ID, 'id or name'): cv.string,
+        vol.Exclusive(CONF_CONVERSATION_NAME, 'id or name'): cv.string
+    }),
+    cv.has_at_least_one_key(CONF_CONVERSATION_ID, CONF_CONVERSATION_NAME)
+)
+MESSAGE_SEGMENT_SCHEMA = vol.Schema({
+    vol.Required('text'): cv.string,
+    vol.Optional('is_bold'): cv.boolean,
+    vol.Optional('is_italic'): cv.boolean,
+    vol.Optional('is_strikethrough'): cv.boolean,
+    vol.Optional('is_underline'): cv.boolean,
+    vol.Optional('parse_str'): cv.boolean,
+    vol.Optional('link_target'): cv.string
+})
+
+MESSAGE_SCHEMA = vol.Schema({
+    vol.Required(ATTR_TARGET): [TARGETS_SCHEMA],
+    vol.Required(ATTR_MESSAGE): [MESSAGE_SEGMENT_SCHEMA]
+})
+
+COMMAND_SCHEMA = vol.All(
+    # Basic Schema
+    vol.Schema({
+        vol.Exclusive(CONF_WORD, 'trigger'): cv.string,
+        vol.Exclusive(CONF_EXPRESSION, 'trigger'): cv.is_regex,
+        vol.Required(CONF_NAME): cv.string,
+        vol.Optional(CONF_CONVERSATIONS): [TARGETS_SCHEMA]
+    }),
+    # Make sure it's either a word or an expression command
+    cv.has_at_least_one_key(CONF_WORD, CONF_EXPRESSION)
+)
+
+CONFIG_SCHEMA = vol.Schema({
+    DOMAIN: vol.Schema({
+        vol.Optional(CONF_COMMANDS, default=[]): [COMMAND_SCHEMA]
+    })
+}, extra=vol.ALLOW_EXTRA)