45 lines
1.2 KiB
Python
45 lines
1.2 KiB
Python
"""
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Offer MQTT listening automation rules.
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For more details about this automation rule, please refer to the documentation
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at https://home-assistant.io/components/automation/#mqtt-trigger
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"""
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import voluptuous as vol
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import homeassistant.components.mqtt as mqtt
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from homeassistant.const import CONF_PLATFORM
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import homeassistant.helpers.config_validation as cv
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DEPENDENCIES = ['mqtt']
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CONF_TOPIC = 'topic'
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CONF_PAYLOAD = 'payload'
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TRIGGER_SCHEMA = vol.Schema({
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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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})
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def trigger(hass, config, action):
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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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def mqtt_automation_listener(msg_topic, msg_payload, qos):
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"""Listen for MQTT messages."""
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if payload is None or payload == msg_payload:
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action({
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'trigger': {
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'platform': 'mqtt',
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'topic': msg_topic,
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'payload': msg_payload,
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'qos': qos,
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}
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})
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mqtt.subscribe(hass, topic, mqtt_automation_listener)
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return True
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