b738082dad
* Type check various component base classes, disabling bunch of checks for now * Type hint fixes * Help mypy out some * Add more type hints
55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
"""Offer MQTT listening automation rules."""
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import json
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import voluptuous as vol
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from homeassistant.core import callback
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from homeassistant.components import mqtt
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from homeassistant.const import CONF_PLATFORM, CONF_PAYLOAD
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import homeassistant.helpers.config_validation as cv
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# mypy: allow-untyped-defs
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CONF_ENCODING = "encoding"
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CONF_TOPIC = "topic"
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DEFAULT_ENCODING = "utf-8"
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TRIGGER_SCHEMA = vol.Schema(
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{
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vol.Required(CONF_PLATFORM): mqtt.DOMAIN,
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vol.Required(CONF_TOPIC): mqtt.valid_subscribe_topic,
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vol.Optional(CONF_PAYLOAD): cv.string,
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vol.Optional(CONF_ENCODING, default=DEFAULT_ENCODING): cv.string,
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}
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)
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async def async_trigger(hass, config, action, automation_info):
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"""Listen for state changes based on configuration."""
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topic = config[CONF_TOPIC]
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payload = config.get(CONF_PAYLOAD)
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encoding = config[CONF_ENCODING] or None
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@callback
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def mqtt_automation_listener(mqttmsg):
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"""Listen for MQTT messages."""
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if payload is None or payload == mqttmsg.payload:
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data = {
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"platform": "mqtt",
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"topic": mqttmsg.topic,
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"payload": mqttmsg.payload,
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"qos": mqttmsg.qos,
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}
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try:
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data["payload_json"] = json.loads(mqttmsg.payload)
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except ValueError:
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pass
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hass.async_run_job(action, {"trigger": data})
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remove = await mqtt.async_subscribe(
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hass, topic, mqtt_automation_listener, encoding=encoding
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)
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return remove
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