Add WiFi/MQTT/API connected condition (#465)

* Add WiFi/MQTT/API connected condition

* Add tests

* Fix namespace

esphome/automation.py

@@ -48,7 +48,7 @@ def validate_recursive_condition(value):
                               u"".format(key, key2), path)
         validator = CONDITION_REGISTRY[key][0]
         try:
-            condition = validator(item[key])
+            condition = validator(item[key] or {})
         except vol.Invalid as err:
             err.prepend(path)
             raise err
@@ -83,7 +83,7 @@ def validate_recursive_action(value):
                               u"".format(key, key2), path)
         validator = ACTION_REGISTRY[key][0]
         try:
-            action = validator(item[key])
+            action = validator(item[key] or {})
         except vol.Invalid as err:
             err.prepend(path)
             raise err
@@ -159,7 +159,6 @@ def validate_automation(extra_schema=None, extra_validators=None, single=False):
 AUTOMATION_SCHEMA = cv.Schema({
     cv.GenerateID(CONF_TRIGGER_ID): cv.declare_variable_id(Trigger),
     cv.GenerateID(CONF_AUTOMATION_ID): cv.declare_variable_id(Automation),
-    vol.Optional(CONF_IF): validate_recursive_condition,
     vol.Required(CONF_THEN): validate_recursive_action,
 })
 
@@ -375,10 +374,6 @@ def build_automation_(trigger, args, config):
     rhs = App.make_automation(templ, trigger)
     type = Automation.template(templ)
     obj = Pvariable(config[CONF_AUTOMATION_ID], rhs, type=type)
-    if CONF_IF in config:
-        for conditions in build_conditions(config[CONF_IF], templ, args):
-            yield None
-        add(obj.add_conditions(conditions))
     for actions in build_actions(config[CONF_THEN], templ, args):
         yield None
     add(obj.add_actions(actions))

esphome/components/api.py

@@ -1,7 +1,7 @@
 import voluptuous as vol
 
 from esphome import automation
-from esphome.automation import ACTION_REGISTRY
+from esphome.automation import ACTION_REGISTRY, CONDITION_REGISTRY, Condition
 import esphome.config_validation as cv
 from esphome.const import CONF_DATA, CONF_DATA_TEMPLATE, CONF_ID, CONF_PASSWORD, CONF_PORT, \
     CONF_REBOOT_TIMEOUT, CONF_SERVICE, CONF_VARIABLES, CONF_SERVICES, CONF_TRIGGER_ID
@@ -16,6 +16,7 @@ APIServer = api_ns.class_('APIServer', Component, StoringController)
 HomeAssistantServiceCallAction = api_ns.class_('HomeAssistantServiceCallAction', Action)
 KeyValuePair = api_ns.class_('KeyValuePair')
 TemplatableKeyValuePair = api_ns.class_('TemplatableKeyValuePair')
+APIConnectedCondition = esphome_ns.class_('APIConnectedCondition', Condition)
 
 UserService = api_ns.class_('UserService', Trigger)
 ServiceTypeArgument = api_ns.class_('ServiceTypeArgument')
@@ -127,3 +128,14 @@ def homeassistant_service_to_code(config, action_id, template_arg, args):
             datas.append(TemplatableKeyValuePair(key, value_))
         add(act.set_variables(datas))
     yield act
+
+
+CONF_API_CONNECTED = 'api.connected'
+API_CONNECTED_CONDITION_SCHEMA = vol.Schema({})
+
+
+@CONDITION_REGISTRY.register(CONF_API_CONNECTED, API_CONNECTED_CONDITION_SCHEMA)
+def api_connected_to_code(config, condition_id, template_arg, args):
+    rhs = APIConnectedCondition.new(template_arg)
+    type = APIConnectedCondition.template(template_arg)
+    yield Pvariable(condition_id, rhs, type=type)

esphome/components/mqtt.py

@@ -4,7 +4,7 @@ import re
 import voluptuous as vol
 
 from esphome import automation
-from esphome.automation import ACTION_REGISTRY
+from esphome.automation import ACTION_REGISTRY, CONDITION_REGISTRY, Condition
 from esphome.components import logger
 import esphome.config_validation as cv
 from esphome.const import CONF_AVAILABILITY, CONF_BIRTH_MESSAGE, CONF_BROKER, CONF_CLIENT_ID, \
@@ -47,6 +47,7 @@ MQTTMessageTrigger = mqtt_ns.class_('MQTTMessageTrigger', Trigger.template(std_s
 MQTTJsonMessageTrigger = mqtt_ns.class_('MQTTJsonMessageTrigger',
                                         Trigger.template(JsonObjectConstRef))
 MQTTComponent = mqtt_ns.class_('MQTTComponent', Component)
+MQTTConnectedCondition = mqtt_ns.class_('MQTTConnectedCondition', Condition)
 
 
 def validate_config(value):
@@ -347,3 +348,13 @@ def setup_mqtt_component(obj, config):
 
 LIB_DEPS = 'AsyncMqttClient@0.8.2'
 BUILD_FLAGS = '-DUSE_MQTT'
+
+CONF_MQTT_CONNECTED = 'mqtt.connected'
+MQTT_CONNECTED_CONDITION_SCHEMA = vol.Schema({})
+
+
+@CONDITION_REGISTRY.register(CONF_MQTT_CONNECTED, MQTT_CONNECTED_CONDITION_SCHEMA)
+def mqtt_connected_to_code(config, condition_id, template_arg, args):
+    rhs = MQTTConnectedCondition.new(template_arg)
+    type = MQTTConnectedCondition.template(template_arg)
+    yield Pvariable(condition_id, rhs, type=type)

esphome/components/wifi.py

@@ -1,10 +1,11 @@
 import voluptuous as vol
 
+from esphome.automation import CONDITION_REGISTRY, Condition
 import esphome.config_validation as cv
-from esphome.const import CONF_AP, CONF_BSSID, CONF_CHANNEL, CONF_DNS1, CONF_DNS2, \
+from esphome.const import CONF_AP, CONF_BSSID, CONF_CHANNEL, CONF_DNS1, CONF_DNS2, CONF_DOMAIN, \
-    CONF_DOMAIN, CONF_FAST_CONNECT, CONF_GATEWAY, CONF_ID, CONF_MANUAL_IP, CONF_NETWORKS, \
+    CONF_FAST_CONNECT, CONF_GATEWAY, CONF_HIDDEN, CONF_ID, CONF_MANUAL_IP, CONF_NETWORKS, \
     CONF_PASSWORD, CONF_POWER_SAVE_MODE, CONF_REBOOT_TIMEOUT, CONF_SSID, CONF_STATIC_IP, \
-    CONF_SUBNET, CONF_USE_ADDRESS, CONF_HIDDEN
+    CONF_SUBNET, CONF_USE_ADDRESS
 from esphome.core import CORE, HexInt
 from esphome.cpp_generator import Pvariable, StructInitializer, add, variable
 from esphome.cpp_types import App, Component, esphome_ns, global_ns
@@ -20,6 +21,7 @@ WIFI_POWER_SAVE_MODES = {
     'LIGHT': WiFiPowerSaveMode.WIFI_POWER_SAVE_LIGHT,
     'HIGH': WiFiPowerSaveMode.WIFI_POWER_SAVE_HIGH,
 }
+WiFiConnectedCondition = esphome_ns.class_('WiFiConnectedCondition', Condition)
 
 
 def validate_password(value):
@@ -188,3 +190,14 @@ def lib_deps(config):
     if CORE.is_esp32:
         return None
     raise NotImplementedError
+
+
+CONF_WIFI_CONNECTED = 'wifi.connected'
+WIFI_CONNECTED_CONDITION_SCHEMA = vol.Schema({})
+
+
+@CONDITION_REGISTRY.register(CONF_WIFI_CONNECTED, WIFI_CONNECTED_CONDITION_SCHEMA)
+def wifi_connected_to_code(config, condition_id, template_arg, args):
+    rhs = WiFiConnectedCondition.new(template_arg)
+    type = WiFiConnectedCondition.template(template_arg)
+    yield Pvariable(condition_id, rhs, type=type)

tests/test1.yaml

@@ -78,21 +78,26 @@ mqtt:
   on_json_message:
     topic: the/topic
     then:
-      - lambda: |-
+    - if:
-          int data = x["my_data"];
+        condition:
-          ESP_LOGD("main", "The data is: %d", data);
+          - wifi.connected:
-      - light.turn_on:
+          - mqtt.connected:
-          id: living_room_lights
+        then:
-          transition_length: !lambda |-
+        - lambda: |-
-            int length = 1000;
+            int data = x["my_data"];
-            if (x.containsKey("length"))
+            ESP_LOGD("main", "The data is: %d", data);
-              length = x["length"];
+        - light.turn_on:
-            return length;
+            id: living_room_lights
-          effect: !lambda |-
+            transition_length: !lambda |-
-            const char *effect = "None";
+              int length = 1000;
-            if (x.containsKey("effect"))
+              if (x.containsKey("length"))
-              effect = x["effect"];
+                length = x["length"];
-            return effect;
+              return length;
+            effect: !lambda |-
+              const char *effect = "None";
+              if (x.containsKey("effect"))
+                effect = x["effect"];
+              return effect;
 
 i2c:
   sda: 21

tests/test2.yaml

@@ -185,8 +185,12 @@ text_sensor:
     icon: mdi:icon
     id: version_sensor
     on_value:
-      - lambda: !lambda |-
+      - if:
-          ESP_LOGD("main", "The state is %s=%s", x.c_str(), id(version_sensor).state.c_str());
+          condition:
+            - api.connected:
+          then:
+          - lambda: !lambda |-
+              ESP_LOGD("main", "The state is %s=%s", x.c_str(), id(version_sensor).state.c_str());
       - script.execute: my_script
       - homeassistant.service:
           service: notify.html5