Add native ESPHome API (#265)

* Esphomeapi

* Updates

* Remove MQTT from wizard

* Add protobuf to requirements

* Fix

* API Client updates

* Dump config on API connect

* Old WiFi config migration

* Home Assistant state import

* Lint

esphomeyaml/components/api.py

@@ -0,0 +1,85 @@
+import voluptuous as vol
+
+from esphomeyaml.automation import ACTION_REGISTRY
+import esphomeyaml.config_validation as cv
+from esphomeyaml.const import CONF_DATA, CONF_DATA_TEMPLATE, CONF_ID, CONF_PASSWORD, CONF_PORT, \
+    CONF_SERVICE, CONF_VARIABLES
+from esphomeyaml.core import CORE
+from esphomeyaml.cpp_generator import ArrayInitializer, Pvariable, add, get_variable, process_lambda
+from esphomeyaml.cpp_helpers import setup_component
+from esphomeyaml.cpp_types import Action, App, Component, StoringController, esphomelib_ns
+
+api_ns = esphomelib_ns.namespace('api')
+APIServer = api_ns.class_('APIServer', Component, StoringController)
+HomeAssistantServiceCallAction = api_ns.class_('HomeAssistantServiceCallAction', Action)
+KeyValuePair = api_ns.class_('KeyValuePair')
+TemplatableKeyValuePair = api_ns.class_('TemplatableKeyValuePair')
+
+CONFIG_SCHEMA = vol.Schema({
+    cv.GenerateID(): cv.declare_variable_id(APIServer),
+    vol.Optional(CONF_PORT, default=6053): cv.port,
+    vol.Optional(CONF_PASSWORD, default=''): cv.string_strict,
+}).extend(cv.COMPONENT_SCHEMA.schema)
+
+
+def to_code(config):
+    rhs = App.init_api_server()
+    api = Pvariable(config[CONF_ID], rhs)
+
+    if config[CONF_PORT] != 6053:
+        add(api.set_port(config[CONF_PORT]))
+    if config.get(CONF_PASSWORD):
+        add(api.set_password(config[CONF_PASSWORD]))
+
+    setup_component(api, config)
+
+
+BUILD_FLAGS = '-DUSE_API'
+
+
+def lib_deps(config):
+    if CORE.is_esp32:
+        return 'AsyncTCP@1.0.1'
+    elif CORE.is_esp8266:
+        return 'ESPAsyncTCP@1.1.3'
+    raise NotImplementedError
+
+
+CONF_HOMEASSISTANT_SERVICE = 'homeassistant.service'
+LOGGER_LOG_ACTION_SCHEMA = vol.Schema({
+    cv.GenerateID(): cv.use_variable_id(APIServer),
+    vol.Required(CONF_SERVICE): cv.string,
+    vol.Optional(CONF_DATA): vol.Schema({
+        cv.string: cv.string,
+    }),
+    vol.Optional(CONF_DATA_TEMPLATE): vol.Schema({
+        cv.string: cv.string,
+    }),
+    vol.Optional(CONF_VARIABLES): vol.Schema({
+        cv.string: cv.lambda_,
+    }),
+})
+
+
+@ACTION_REGISTRY.register(CONF_HOMEASSISTANT_SERVICE, LOGGER_LOG_ACTION_SCHEMA)
+def homeassistant_service_to_code(config, action_id, arg_type, template_arg):
+    for var in get_variable(config[CONF_ID]):
+        yield None
+    rhs = var.make_home_assistant_service_call_action(template_arg)
+    type = HomeAssistantServiceCallAction.template(arg_type)
+    act = Pvariable(action_id, rhs, type=type)
+    add(act.set_service(config[CONF_SERVICE]))
+    if CONF_DATA in config:
+        datas = [KeyValuePair(k, v) for k, v in config[CONF_DATA].items()]
+        add(act.set_data(ArrayInitializer(*datas)))
+    if CONF_DATA_TEMPLATE in config:
+        datas = [KeyValuePair(k, v) for k, v in config[CONF_DATA_TEMPLATE].items()]
+        add(act.set_data_template(ArrayInitializer(*datas)))
+    if CONF_VARIABLES in config:
+        datas = []
+        for key, value in config[CONF_VARIABLES].items():
+            for value_ in process_lambda(value, []):
+                yield None
+            datas.append(TemplatableKeyValuePair(key, value_))
+        add(act.set_variables(ArrayInitializer(*datas)))
+    yield act