44 lines
2 KiB
Python
44 lines
2 KiB
Python
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# A more versatile way to define event hooks than the YAML format of `config.yaml` is through native Python scripts.
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# You can define hooks as simple Python functions that use the `platypush.event.hook.hook` decorator to specify on
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# which event type they should be called, and optionally on which event attribute values.
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#
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# Event hooks should be stored in Python files under `~/.config/platypush/scripts`. All the functions that use the
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# @hook decorator will automatically be discovered and imported as event hooks into the platform at runtime.
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# `run` is a utility function that runs a request by name (e.g. `light.hue.on`).
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from platypush.utils import run
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# @hook decorator
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from platypush.event.hook import hook
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# Event types that you want to react to
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from platypush.message.event.assistant import ConversationStartEvent, SpeechRecognizedEvent
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@hook(SpeechRecognizedEvent, phrase='play ${title} by ${artist}')
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def on_music_play_command(event, title=None, artist=None, **context):
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"""
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This function will be executed when a SpeechRecognizedEvent with `phrase="play the music"` is triggered.
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`event` contains the event object and `context` any key-value info from the running context.
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Note that in this specific case we can leverage the token-extraction feature of SpeechRecognizedEvent through
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${} that operates on regex-like principles to extract any text that matches the pattern into context variables.
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"""
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results = run('music.mpd.search', filter={
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'artist': artist,
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'title': title,
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})
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if results:
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run('music.mpd.play', results[0]['file'])
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else:
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run('tts.say', "I can't find any music matching your query")
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@hook(ConversationStartEvent)
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def on_conversation_start(event, **context):
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"""
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A simple hook that gets invoked when a new conversation starts with a voice assistant and simply pauses the music
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to make sure that your speech is properly detected.
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"""
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run('music.mpd.pause_if_playing')
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