Add 'at' time trigger (#493)

## Description:


**Related issue (if applicable):** fixes <link to issue>

**Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):** esphome/esphome-docs#<esphome-docs PR number goes here>
**Pull request in [esphome-core](https://github.com/esphome/esphome-core) with C++ framework changes (if applicable):** esphome/esphome-core#<esphome-core PR number goes here>

## Checklist:
  - [ ] The code change is tested and works locally.
  - [ ] Tests have been added to verify that the new code works (under `tests/` folder).

If user exposed functionality or configuration variables are added/changed:
  - [ ] Documentation added/updated in [esphomedocs](https://github.com/OttoWinter/esphomedocs).

esphome/__main__.py

@@ -7,13 +7,11 @@ import os
 import random
 import sys
 
-from esphome import const, core_config, mqtt, platformio_api, wizard, writer, yaml_util
-from esphome.api.client import run_logs
+from esphome import const, core_config, platformio_api, wizard, writer, yaml_util
 from esphome.config import get_component, iter_components, read_config, strip_default_ids
 from esphome.const import CONF_BAUD_RATE, CONF_BROKER, CONF_ESPHOME, CONF_LOGGER, \
     CONF_USE_CUSTOM_CODE
 from esphome.core import CORE, EsphomeError
-from esphome.cpp_generator import Expression, RawStatement, add, statement
 from esphome.helpers import color, indent
 from esphome.py_compat import IS_PY2, safe_input, text_type
 from esphome.storage_json import StorageJSON, storage_path
@@ -124,6 +122,8 @@ def run_miniterm(config, port):
 
 
 def write_cpp(config):
+    from esphome.cpp_generator import Expression, RawStatement, add, statement
+
     _LOGGER.info("Generating C++ source...")
 
     CORE.add_job(core_config.to_code, config[CONF_ESPHOME], domain='esphome')
@@ -223,14 +223,20 @@ def show_logs(config, args, port):
         run_miniterm(config, port)
         return 0
     if get_port_type(port) == 'NETWORK' and 'api' in config:
+        from esphome.api.client import run_logs
+
         return run_logs(config, port)
     if get_port_type(port) == 'MQTT' and 'mqtt' in config:
+        from esphome import mqtt
+
         return mqtt.show_logs(config, args.topic, args.username, args.password, args.client_id)
 
     raise ValueError
 
 
 def clean_mqtt(config, args):
+    from esphome import mqtt
+
     return mqtt.clear_topic(config, args.topic, args.username, args.password, args.client_id)
 
 
@@ -329,6 +335,8 @@ def command_clean_mqtt(args, config):
 
 
 def command_mqtt_fingerprint(args, config):
+    from esphome import mqtt
+
     return mqtt.get_fingerprint(config)
 
 

esphome/components/climate/__init__.py

@@ -86,8 +86,8 @@ CLIMATE_CONTROL_ACTION_SCHEMA = cv.Schema({
 def climate_control_to_code(config, action_id, template_arg, args):
     for var in get_variable(config[CONF_ID]):
         yield None
-    rhs = var.make_control_action(template_arg)
     type = ControlAction.template(template_arg)
+    rhs = type.new(var)
     action = Pvariable(action_id, rhs, type=type)
     if CONF_MODE in config:
         if isinstance(config[CONF_MODE], core.Lambda):

esphome/components/time/__init__.py

@@ -7,7 +7,8 @@ import voluptuous as vol
 from esphome import automation
 import esphome.config_validation as cv
 from esphome.const import CONF_CRON, CONF_DAYS_OF_MONTH, CONF_DAYS_OF_WEEK, CONF_HOURS, \
-    CONF_MINUTES, CONF_MONTHS, CONF_ON_TIME, CONF_SECONDS, CONF_TIMEZONE, CONF_TRIGGER_ID
+    CONF_MINUTES, CONF_MONTHS, CONF_ON_TIME, CONF_SECONDS, CONF_TIMEZONE, CONF_TRIGGER_ID, \
+    CONF_AT, CONF_SECOND, CONF_HOUR, CONF_MINUTE
 from esphome.core import CORE
 from esphome.cpp_generator import Pvariable, add
 from esphome.cpp_types import App, Component, Trigger, esphome_ns
@@ -232,15 +233,37 @@ def validate_cron_raw(value):
     }
 
 
+def validate_time_at(value):
+    value = cv.time_of_day(value)
+    return {
+        CONF_HOURS: [value[CONF_HOUR]],
+        CONF_MINUTES: [value[CONF_MINUTE]],
+        CONF_SECONDS: [value[CONF_SECOND]],
+        CONF_DAYS_OF_MONTH: validate_cron_days_of_month('*'),
+        CONF_MONTHS: validate_cron_months('*'),
+        CONF_DAYS_OF_WEEK: validate_cron_days_of_week('*'),
+    }
+
+
 def validate_cron_keys(value):
     if CONF_CRON in value:
         for key in value.keys():
             if key in CRON_KEYS:
                 raise vol.Invalid("Cannot use option {} when cron: is specified.".format(key))
+        if CONF_AT in value:
+            raise vol.Invalid("Cannot use option at with cron!")
         cron_ = value[CONF_CRON]
         value = {x: value[x] for x in value if x != CONF_CRON}
         value.update(cron_)
         return value
+    elif CONF_AT in value:
+        for key in value.keys():
+            if key in CRON_KEYS:
+                raise vol.Invalid("Cannot use option {} when at: is specified.".format(key))
+        at_ = value[CONF_AT]
+        value = {x: value[x] for x in value if x != CONF_AT}
+        value.update(at_)
+        return value
     return cv.has_at_least_one_key(*CRON_KEYS)(value)
 
 
@@ -266,6 +289,7 @@ TIME_PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
         vol.Optional(CONF_MONTHS): validate_cron_months,
         vol.Optional(CONF_DAYS_OF_WEEK): validate_cron_days_of_week,
         vol.Optional(CONF_CRON): validate_cron_raw,
+        vol.Optional(CONF_AT): validate_time_at,
     }, validate_cron_keys),
 })
 

esphome/config_validation.py

@@ -2,6 +2,7 @@
 """Helpers for config validation using voluptuous."""
 from __future__ import print_function
 
+from datetime import datetime
 import logging
 import os
 import re
@@ -13,7 +14,7 @@ from esphome import core
 from esphome.const import CONF_AVAILABILITY, CONF_COMMAND_TOPIC, CONF_DISCOVERY, CONF_ID, \
     CONF_INTERNAL, CONF_NAME, CONF_PAYLOAD_AVAILABLE, CONF_PAYLOAD_NOT_AVAILABLE, CONF_PLATFORM, \
     CONF_RETAIN, CONF_SETUP_PRIORITY, CONF_STATE_TOPIC, CONF_TOPIC, ESP_PLATFORM_ESP32, \
-    ESP_PLATFORM_ESP8266
+    ESP_PLATFORM_ESP8266, CONF_HOUR, CONF_MINUTE, CONF_SECOND
 from esphome.core import CORE, HexInt, IPAddress, Lambda, TimePeriod, TimePeriodMicroseconds, \
     TimePeriodMilliseconds, TimePeriodSeconds, TimePeriodMinutes
 from esphome.py_compat import integer_types, string_types, text_type, IS_PY2
@@ -391,6 +392,23 @@ positive_not_null_time_period = vol.All(time_period,
                                         vol.Range(min=TimePeriod(), min_included=False))
 
 
+def time_of_day(value):
+    value = string(value)
+    try:
+        date = datetime.strptime(value, '%H:%M:%S')
+    except ValueError as err:
+        try:
+            date = datetime.strptime(value, '%H:%M:%S %p')
+        except ValueError:
+            raise vol.Invalid("Invalid time of day: {}".format(err))
+
+    return {
+        CONF_HOUR: date.hour,
+        CONF_MINUTE: date.minute,
+        CONF_SECOND: date.second,
+    }
+
+
 def mac_address(value):
     value = string_strict(value)
     parts = value.split(':')

esphome/const.py

@@ -361,8 +361,11 @@ CONF_HIDDEN = 'hidden'
 CONF_ON_LOOP = 'on_loop'
 CONF_ON_TIME = 'on_time'
 CONF_SECONDS = 'seconds'
+CONF_SECOND = 'second'
 CONF_MINUTES = 'minutes'
+CONF_MINUTE = 'minute'
 CONF_HOURS = 'hours'
+CONF_HOUR = 'hour'
 CONF_DAYS_OF_MONTH = 'days_of_month'
 CONF_MONTHS = 'months'
 CONF_DAYS_OF_WEEK = 'days_of_week'
@@ -389,6 +392,7 @@ CONF_DIR_PIN = 'dir_pin'
 CONF_SLEEP_PIN = 'sleep_pin'
 CONF_SEND_FIRST_AT = 'send_first_at'
 CONF_TIME_ID = 'time_id'
+CONF_AT = 'at'
 CONF_RESTORE_STATE = 'restore_state'
 CONF_TIMING = 'timing'
 CONF_INVALID_COOLDOWN = 'invalid_cooldown'